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-rw-r--r--Documentation/devicetree/bindings/sound/fsl,spdif.txt54
-rw-r--r--Documentation/devicetree/bindings/sound/fsl,ssi.txt (renamed from Documentation/devicetree/bindings/powerpc/fsl/ssi.txt)8
-rw-r--r--Documentation/devicetree/bindings/sound/imx-audmux.txt9
-rw-r--r--include/dt-bindings/sound/fsl-imx-audmux.h56
-rw-r--r--sound/soc/fsl/Kconfig13
-rw-r--r--sound/soc/fsl/Makefile2
-rw-r--r--sound/soc/fsl/fsl_spdif.c1236
-rw-r--r--sound/soc/fsl/fsl_spdif.h191
-rw-r--r--sound/soc/fsl/fsl_ssi.c169
-rw-r--r--sound/soc/fsl/imx-audmux.c78
-rw-r--r--sound/soc/fsl/imx-audmux.h52
-rw-r--r--sound/soc/fsl/imx-mc13783.c1
-rw-r--r--sound/soc/fsl/imx-pcm-dma.c4
-rw-r--r--sound/soc/fsl/imx-pcm-fiq.c20
-rw-r--r--sound/soc/fsl/imx-pcm.h26
-rw-r--r--sound/soc/fsl/imx-sgtl5000.c4
-rw-r--r--sound/soc/fsl/imx-ssi.c11
-rw-r--r--sound/soc/fsl/imx-ssi.h1
-rw-r--r--sound/soc/fsl/imx-wm8962.c3
19 files changed, 1790 insertions, 148 deletions
diff --git a/Documentation/devicetree/bindings/sound/fsl,spdif.txt b/Documentation/devicetree/bindings/sound/fsl,spdif.txt
new file mode 100644
index 000000000000..f2ae335670f5
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/fsl,spdif.txt
@@ -0,0 +1,54 @@
+Freescale Sony/Philips Digital Interface Format (S/PDIF) Controller
+
+The Freescale S/PDIF audio block is a stereo transceiver that allows the
+processor to receive and transmit digital audio via an coaxial cable or
+a fibre cable.
+
+Required properties:
+
+ - compatible : Compatible list, must contain "fsl,imx35-spdif".
+
+ - reg : Offset and length of the register set for the device.
+
+ - interrupts : Contains the spdif interrupt.
+
+ - dmas : Generic dma devicetree binding as described in
+ Documentation/devicetree/bindings/dma/dma.txt.
+
+ - dma-names : Two dmas have to be defined, "tx" and "rx".
+
+ - clocks : Contains an entry for each entry in clock-names.
+
+ - clock-names : Includes the following entries:
+ "core" The core clock of spdif controller
+ "rxtx<0-7>" Clock source list for tx and rx clock.
+ This clock list should be identical to
+ the source list connecting to the spdif
+ clock mux in "SPDIF Transceiver Clock
+ Diagram" of SoC reference manual. It
+ can also be referred to TxClk_Source
+ bit of register SPDIF_STC.
+
+Example:
+
+spdif: spdif@02004000 {
+ compatible = "fsl,imx35-spdif";
+ reg = <0x02004000 0x4000>;
+ interrupts = <0 52 0x04>;
+ dmas = <&sdma 14 18 0>,
+ <&sdma 15 18 0>;
+ dma-names = "rx", "tx";
+
+ clocks = <&clks 197>, <&clks 3>,
+ <&clks 197>, <&clks 107>,
+ <&clks 0>, <&clks 118>,
+ <&clks 62>, <&clks 139>,
+ <&clks 0>;
+ clock-names = "core", "rxtx0",
+ "rxtx1", "rxtx2",
+ "rxtx3", "rxtx4",
+ "rxtx5", "rxtx6",
+ "rxtx7";
+
+ status = "okay";
+};
diff --git a/Documentation/devicetree/bindings/powerpc/fsl/ssi.txt b/Documentation/devicetree/bindings/sound/fsl,ssi.txt
index 5ff76c9c57d2..088a2c038f01 100644
--- a/Documentation/devicetree/bindings/powerpc/fsl/ssi.txt
+++ b/Documentation/devicetree/bindings/sound/fsl,ssi.txt
@@ -47,6 +47,14 @@ Optional properties:
- codec-handle: Phandle to a 'codec' node that defines an audio
codec connected to this SSI. This node is typically
a child of an I2C or other control node.
+- fsl,fiq-stream-filter: Bool property. Disabled DMA and use FIQ instead to
+ filter the codec stream. This is necessary for some boards
+ where an incompatible codec is connected to this SSI, e.g.
+ on pca100 and pcm043.
+- dmas: Generic dma devicetree binding as described in
+ Documentation/devicetree/bindings/dma/dma.txt.
+- dma-names: Two dmas have to be defined, "tx" and "rx", if fsl,imx-fiq
+ is not defined.
Child 'codec' node required properties:
- compatible: Compatible list, contains the name of the codec
diff --git a/Documentation/devicetree/bindings/sound/imx-audmux.txt b/Documentation/devicetree/bindings/sound/imx-audmux.txt
index 215aa9817213..f88a00e54c63 100644
--- a/Documentation/devicetree/bindings/sound/imx-audmux.txt
+++ b/Documentation/devicetree/bindings/sound/imx-audmux.txt
@@ -5,6 +5,15 @@ Required properties:
or "fsl,imx31-audmux" for the version firstly used on i.MX31.
- reg : Should contain AUDMUX registers location and length
+An initial configuration can be setup using child nodes.
+
+Required properties of optional child nodes:
+- fsl,audmux-port : Integer of the audmux port that is configured by this
+ child node.
+- fsl,port-config : List of configuration options for the specific port. For
+ imx31-audmux and above, it is a list of tuples <ptcr pdcr>. For
+ imx21-audmux it is a list of pcr values.
+
Example:
audmux@021d8000 {
diff --git a/include/dt-bindings/sound/fsl-imx-audmux.h b/include/dt-bindings/sound/fsl-imx-audmux.h
new file mode 100644
index 000000000000..50b09e96f247
--- /dev/null
+++ b/include/dt-bindings/sound/fsl-imx-audmux.h
@@ -0,0 +1,56 @@
+#ifndef __DT_FSL_IMX_AUDMUX_H
+#define __DT_FSL_IMX_AUDMUX_H
+
+#define MX27_AUDMUX_HPCR1_SSI0 0
+#define MX27_AUDMUX_HPCR2_SSI1 1
+#define MX27_AUDMUX_HPCR3_SSI_PINS_4 2
+#define MX27_AUDMUX_PPCR1_SSI_PINS_1 3
+#define MX27_AUDMUX_PPCR2_SSI_PINS_2 4
+#define MX27_AUDMUX_PPCR3_SSI_PINS_3 5
+
+#define MX31_AUDMUX_PORT1_SSI0 0
+#define MX31_AUDMUX_PORT2_SSI1 1
+#define MX31_AUDMUX_PORT3_SSI_PINS_3 2
+#define MX31_AUDMUX_PORT4_SSI_PINS_4 3
+#define MX31_AUDMUX_PORT5_SSI_PINS_5 4
+#define MX31_AUDMUX_PORT6_SSI_PINS_6 5
+#define MX31_AUDMUX_PORT7_SSI_PINS_7 6
+
+#define MX51_AUDMUX_PORT1_SSI0 0
+#define MX51_AUDMUX_PORT2_SSI1 1
+#define MX51_AUDMUX_PORT3 2
+#define MX51_AUDMUX_PORT4 3
+#define MX51_AUDMUX_PORT5 4
+#define MX51_AUDMUX_PORT6 5
+#define MX51_AUDMUX_PORT7 6
+
+/* Register definitions for the i.MX21/27 Digital Audio Multiplexer */
+#define IMX_AUDMUX_V1_PCR_INMMASK(x) ((x) & 0xff)
+#define IMX_AUDMUX_V1_PCR_INMEN (1 << 8)
+#define IMX_AUDMUX_V1_PCR_TXRXEN (1 << 10)
+#define IMX_AUDMUX_V1_PCR_SYN (1 << 12)
+#define IMX_AUDMUX_V1_PCR_RXDSEL(x) (((x) & 0x7) << 13)
+#define IMX_AUDMUX_V1_PCR_RFCSEL(x) (((x) & 0xf) << 20)
+#define IMX_AUDMUX_V1_PCR_RCLKDIR (1 << 24)
+#define IMX_AUDMUX_V1_PCR_RFSDIR (1 << 25)
+#define IMX_AUDMUX_V1_PCR_TFCSEL(x) (((x) & 0xf) << 26)
+#define IMX_AUDMUX_V1_PCR_TCLKDIR (1 << 30)
+#define IMX_AUDMUX_V1_PCR_TFSDIR (1 << 31)
+
+/* Register definitions for the i.MX25/31/35/51 Digital Audio Multiplexer */
+#define IMX_AUDMUX_V2_PTCR_TFSDIR (1 << 31)
+#define IMX_AUDMUX_V2_PTCR_TFSEL(x) (((x) & 0xf) << 27)
+#define IMX_AUDMUX_V2_PTCR_TCLKDIR (1 << 26)
+#define IMX_AUDMUX_V2_PTCR_TCSEL(x) (((x) & 0xf) << 22)
+#define IMX_AUDMUX_V2_PTCR_RFSDIR (1 << 21)
+#define IMX_AUDMUX_V2_PTCR_RFSEL(x) (((x) & 0xf) << 17)
+#define IMX_AUDMUX_V2_PTCR_RCLKDIR (1 << 16)
+#define IMX_AUDMUX_V2_PTCR_RCSEL(x) (((x) & 0xf) << 12)
+#define IMX_AUDMUX_V2_PTCR_SYN (1 << 11)
+
+#define IMX_AUDMUX_V2_PDCR_RXDSEL(x) (((x) & 0x7) << 13)
+#define IMX_AUDMUX_V2_PDCR_TXRXEN (1 << 12)
+#define IMX_AUDMUX_V2_PDCR_MODE(x) (((x) & 0x3) << 8)
+#define IMX_AUDMUX_V2_PDCR_INMMASK(x) ((x) & 0xff)
+
+#endif /* __DT_FSL_IMX_AUDMUX_H */
diff --git a/sound/soc/fsl/Kconfig b/sound/soc/fsl/Kconfig
index aa438546c912..cd088cc8c866 100644
--- a/sound/soc/fsl/Kconfig
+++ b/sound/soc/fsl/Kconfig
@@ -1,6 +1,9 @@
config SND_SOC_FSL_SSI
tristate
+config SND_SOC_FSL_SPDIF
+ tristate
+
config SND_SOC_FSL_UTILS
tristate
@@ -98,7 +101,7 @@ endif # SND_POWERPC_SOC
menuconfig SND_IMX_SOC
tristate "SoC Audio for Freescale i.MX CPUs"
- depends on ARCH_MXC
+ depends on ARCH_MXC || COMPILE_TEST
help
Say Y or M if you want to add support for codecs attached to
the i.MX CPUs.
@@ -109,11 +112,11 @@ config SND_SOC_IMX_SSI
tristate
config SND_SOC_IMX_PCM_FIQ
- bool
+ tristate
select FIQ
config SND_SOC_IMX_PCM_DMA
- bool
+ tristate
select SND_SOC_GENERIC_DMAENGINE_PCM
config SND_SOC_IMX_AUDMUX
@@ -175,7 +178,6 @@ config SND_SOC_IMX_WM8962
select SND_SOC_IMX_PCM_DMA
select SND_SOC_IMX_AUDMUX
select SND_SOC_FSL_SSI
- select SND_SOC_FSL_UTILS
help
Say Y if you want to add support for SoC audio on an i.MX board with
a wm8962 codec.
@@ -187,14 +189,13 @@ config SND_SOC_IMX_SGTL5000
select SND_SOC_IMX_PCM_DMA
select SND_SOC_IMX_AUDMUX
select SND_SOC_FSL_SSI
- select SND_SOC_FSL_UTILS
help
Say Y if you want to add support for SoC audio on an i.MX board with
a sgtl5000 codec.
config SND_SOC_IMX_MC13783
tristate "SoC Audio support for I.MX boards with mc13783"
- depends on MFD_MC13783
+ depends on MFD_MC13783 && ARM
select SND_SOC_IMX_SSI
select SND_SOC_IMX_AUDMUX
select SND_SOC_MC13783
diff --git a/sound/soc/fsl/Makefile b/sound/soc/fsl/Makefile
index d4b4aa8b5649..4b5970e014dd 100644
--- a/sound/soc/fsl/Makefile
+++ b/sound/soc/fsl/Makefile
@@ -12,9 +12,11 @@ obj-$(CONFIG_SND_SOC_P1022_RDK) += snd-soc-p1022-rdk.o
# Freescale PowerPC SSI/DMA Platform Support
snd-soc-fsl-ssi-objs := fsl_ssi.o
+snd-soc-fsl-spdif-objs := fsl_spdif.o
snd-soc-fsl-utils-objs := fsl_utils.o
snd-soc-fsl-dma-objs := fsl_dma.o
obj-$(CONFIG_SND_SOC_FSL_SSI) += snd-soc-fsl-ssi.o
+obj-$(CONFIG_SND_SOC_FSL_SPDIF) += snd-soc-fsl-spdif.o
obj-$(CONFIG_SND_SOC_FSL_UTILS) += snd-soc-fsl-utils.o
obj-$(CONFIG_SND_SOC_POWERPC_DMA) += snd-soc-fsl-dma.o
diff --git a/sound/soc/fsl/fsl_spdif.c b/sound/soc/fsl/fsl_spdif.c
new file mode 100644
index 000000000000..42a43820d993
--- /dev/null
+++ b/sound/soc/fsl/fsl_spdif.c
@@ -0,0 +1,1236 @@
+/*
+ * Freescale S/PDIF ALSA SoC Digital Audio Interface (DAI) driver
+ *
+ * Copyright (C) 2013 Freescale Semiconductor, Inc.
+ *
+ * Based on stmp3xxx_spdif_dai.c
+ * Vladimir Barinov <vbarinov@embeddedalley.com>
+ * Copyright 2008 SigmaTel, Inc
+ * Copyright 2008 Embedded Alley Solutions, Inc
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#include <linux/module.h>
+#include <linux/clk.h>
+#include <linux/clk-private.h>
+#include <linux/bitrev.h>
+#include <linux/regmap.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/of_irq.h>
+
+#include <sound/asoundef.h>
+#include <sound/soc.h>
+#include <sound/dmaengine_pcm.h>
+
+#include "fsl_spdif.h"
+#include "imx-pcm.h"
+
+#define FSL_SPDIF_TXFIFO_WML 0x8
+#define FSL_SPDIF_RXFIFO_WML 0x8
+
+#define INTR_FOR_PLAYBACK (INT_TXFIFO_RESYNC)
+#define INTR_FOR_CAPTURE (INT_SYM_ERR | INT_BIT_ERR | INT_URX_FUL | INT_URX_OV|\
+ INT_QRX_FUL | INT_QRX_OV | INT_UQ_SYNC | INT_UQ_ERR |\
+ INT_RXFIFO_RESYNC | INT_LOSS_LOCK | INT_DPLL_LOCKED)
+
+/* Index list for the values that has if (DPLL Locked) condition */
+static u8 srpc_dpll_locked[] = { 0x0, 0x1, 0x2, 0x3, 0x4, 0xa, 0xb };
+#define SRPC_NODPLL_START1 0x5
+#define SRPC_NODPLL_START2 0xc
+
+#define DEFAULT_RXCLK_SRC 1
+
+/*
+ * SPDIF control structure
+ * Defines channel status, subcode and Q sub
+ */
+struct spdif_mixer_control {
+ /* spinlock to access control data */
+ spinlock_t ctl_lock;
+
+ /* IEC958 channel tx status bit */
+ unsigned char ch_status[4];
+
+ /* User bits */
+ unsigned char subcode[2 * SPDIF_UBITS_SIZE];
+
+ /* Q subcode part of user bits */
+ unsigned char qsub[2 * SPDIF_QSUB_SIZE];
+
+ /* Buffer offset for U/Q */
+ u32 upos;
+ u32 qpos;
+
+ /* Ready buffer index of the two buffers */
+ u32 ready_buf;
+};
+
+struct fsl_spdif_priv {
+ struct spdif_mixer_control fsl_spdif_control;
+ struct snd_soc_dai_driver cpu_dai_drv;
+ struct platform_device *pdev;
+ struct regmap *regmap;
+ bool dpll_locked;
+ u8 txclk_div[SPDIF_TXRATE_MAX];
+ u8 txclk_src[SPDIF_TXRATE_MAX];
+ u8 rxclk_src;
+ struct clk *txclk[SPDIF_TXRATE_MAX];
+ struct clk *rxclk;
+ struct snd_dmaengine_dai_dma_data dma_params_tx;
+ struct snd_dmaengine_dai_dma_data dma_params_rx;
+
+ /* The name space will be allocated dynamically */
+ char name[0];
+};
+
+
+/* DPLL locked and lock loss interrupt handler */
+static void spdif_irq_dpll_lock(struct fsl_spdif_priv *spdif_priv)
+{
+ struct regmap *regmap = spdif_priv->regmap;
+ struct platform_device *pdev = spdif_priv->pdev;
+ u32 locked;
+
+ regmap_read(regmap, REG_SPDIF_SRPC, &locked);
+ locked &= SRPC_DPLL_LOCKED;
+
+ dev_dbg(&pdev->dev, "isr: Rx dpll %s \n",
+ locked ? "locked" : "loss lock");
+
+ spdif_priv->dpll_locked = locked ? true : false;
+}
+
+/* Receiver found illegal symbol interrupt handler */
+static void spdif_irq_sym_error(struct fsl_spdif_priv *spdif_priv)
+{
+ struct regmap *regmap = spdif_priv->regmap;
+ struct platform_device *pdev = spdif_priv->pdev;
+
+ dev_dbg(&pdev->dev, "isr: receiver found illegal symbol\n");
+
+ if (!spdif_priv->dpll_locked) {
+ /* DPLL unlocked seems no audio stream */
+ regmap_update_bits(regmap, REG_SPDIF_SIE, INT_SYM_ERR, 0);
+ }
+}
+
+/* U/Q Channel receive register full */
+static void spdif_irq_uqrx_full(struct fsl_spdif_priv *spdif_priv, char name)
+{
+ struct spdif_mixer_control *ctrl = &spdif_priv->fsl_spdif_control;
+ struct regmap *regmap = spdif_priv->regmap;
+ struct platform_device *pdev = spdif_priv->pdev;
+ u32 *pos, size, val, reg;
+
+ switch (name) {
+ case 'U':
+ pos = &ctrl->upos;
+ size = SPDIF_UBITS_SIZE;
+ reg = REG_SPDIF_SRU;
+ break;
+ case 'Q':
+ pos = &ctrl->qpos;
+ size = SPDIF_QSUB_SIZE;
+ reg = REG_SPDIF_SRQ;
+ break;
+ default:
+ dev_err(&pdev->dev, "unsupported channel name\n");
+ return;
+ }
+
+ dev_dbg(&pdev->dev, "isr: %c Channel receive register full\n", name);
+
+ if (*pos >= size * 2) {
+ *pos = 0;
+ } else if (unlikely((*pos % size) + 3 > size)) {
+ dev_err(&pdev->dev, "User bit receivce buffer overflow\n");
+ return;
+ }
+
+ regmap_read(regmap, reg, &val);
+ ctrl->subcode[*pos++] = val >> 16;
+ ctrl->subcode[*pos++] = val >> 8;
+ ctrl->subcode[*pos++] = val;
+}
+
+/* U/Q Channel sync found */
+static void spdif_irq_uq_sync(struct fsl_spdif_priv *spdif_priv)
+{
+ struct spdif_mixer_control *ctrl = &spdif_priv->fsl_spdif_control;
+ struct platform_device *pdev = spdif_priv->pdev;
+
+ dev_dbg(&pdev->dev, "isr: U/Q Channel sync found\n");
+
+ /* U/Q buffer reset */
+ if (ctrl->qpos == 0)
+ return;
+
+ /* Set ready to this buffer */
+ ctrl->ready_buf = (ctrl->qpos - 1) / SPDIF_QSUB_SIZE + 1;
+}
+
+/* U/Q Channel framing error */
+static void spdif_irq_uq_err(struct fsl_spdif_priv *spdif_priv)
+{
+ struct spdif_mixer_control *ctrl = &spdif_priv->fsl_spdif_control;
+ struct regmap *regmap = spdif_priv->regmap;
+ struct platform_device *pdev = spdif_priv->pdev;
+ u32 val;
+
+ dev_dbg(&pdev->dev, "isr: U/Q Channel framing error\n");
+
+ /* Read U/Q data to clear the irq and do buffer reset */
+ regmap_read(regmap, REG_SPDIF_SRU, &val);
+ regmap_read(regmap, REG_SPDIF_SRQ, &val);
+
+ /* Drop this U/Q buffer */
+ ctrl->ready_buf = 0;
+ ctrl->upos = 0;
+ ctrl->qpos = 0;
+}
+
+/* Get spdif interrupt status and clear the interrupt */
+static u32 spdif_intr_status_clear(struct fsl_spdif_priv *spdif_priv)
+{
+ struct regmap *regmap = spdif_priv->regmap;
+ u32 val, val2;
+
+ regmap_read(regmap, REG_SPDIF_SIS, &val);
+ regmap_read(regmap, REG_SPDIF_SIE, &val2);
+
+ regmap_write(regmap, REG_SPDIF_SIC, val & val2);
+
+ return val;
+}
+
+static irqreturn_t spdif_isr(int irq, void *devid)
+{
+ struct fsl_spdif_priv *spdif_priv = (struct fsl_spdif_priv *)devid;
+ struct platform_device *pdev = spdif_priv->pdev;
+ u32 sis;
+
+ sis = spdif_intr_status_clear(spdif_priv);
+
+ if (sis & INT_DPLL_LOCKED)
+ spdif_irq_dpll_lock(spdif_priv);
+
+ if (sis & INT_TXFIFO_UNOV)
+ dev_dbg(&pdev->dev, "isr: Tx FIFO under/overrun\n");
+
+ if (sis & INT_TXFIFO_RESYNC)
+ dev_dbg(&pdev->dev, "isr: Tx FIFO resync\n");
+
+ if (sis & INT_CNEW)
+ dev_dbg(&pdev->dev, "isr: cstatus new\n");
+
+ if (sis & INT_VAL_NOGOOD)
+ dev_dbg(&pdev->dev, "isr: validity flag no good\n");
+
+ if (sis & INT_SYM_ERR)
+ spdif_irq_sym_error(spdif_priv);
+
+ if (sis & INT_BIT_ERR)
+ dev_dbg(&pdev->dev, "isr: receiver found parity bit error\n");
+
+ if (sis & INT_URX_FUL)
+ spdif_irq_uqrx_full(spdif_priv, 'U');
+
+ if (sis & INT_URX_OV)
+ dev_dbg(&pdev->dev, "isr: U Channel receive register overrun\n");
+
+ if (sis & INT_QRX_FUL)
+ spdif_irq_uqrx_full(spdif_priv, 'Q');
+
+ if (sis & INT_QRX_OV)
+ dev_dbg(&pdev->dev, "isr: Q Channel receive register overrun\n");
+
+ if (sis & INT_UQ_SYNC)
+ spdif_irq_uq_sync(spdif_priv);
+
+ if (sis & INT_UQ_ERR)
+ spdif_irq_uq_err(spdif_priv);
+
+ if (sis & INT_RXFIFO_UNOV)
+ dev_dbg(&pdev->dev, "isr: Rx FIFO under/overrun\n");
+
+ if (sis & INT_RXFIFO_RESYNC)
+ dev_dbg(&pdev->dev, "isr: Rx FIFO resync\n");
+
+ if (sis & INT_LOSS_LOCK)
+ spdif_irq_dpll_lock(spdif_priv);
+
+ /* FIXME: Write Tx FIFO to clear TxEm */
+ if (sis & INT_TX_EM)
+ dev_dbg(&pdev->dev, "isr: Tx FIFO empty\n");
+
+ /* FIXME: Read Rx FIFO to clear RxFIFOFul */
+ if (sis & INT_RXFIFO_FUL)
+ dev_dbg(&pdev->dev, "isr: Rx FIFO full\n");
+
+ return IRQ_HANDLED;
+}
+
+static int spdif_softreset(struct fsl_spdif_priv *spdif_priv)
+{
+ struct regmap *regmap = spdif_priv->regmap;
+ u32 val, cycle = 1000;
+
+ regmap_write(regmap, REG_SPDIF_SCR, SCR_SOFT_RESET);
+
+ /*
+ * RESET bit would be cleared after finishing its reset procedure,
+ * which typically lasts 8 cycles. 1000 cycles will keep it safe.
+ */
+ do {
+ regmap_read(regmap, REG_SPDIF_SCR, &val);
+ } while ((val & SCR_SOFT_RESET) && cycle--);
+
+ if (cycle)
+ return 0;
+ else
+ return -EBUSY;
+}
+
+static void spdif_set_cstatus(struct spdif_mixer_control *ctrl,
+ u8 mask, u8 cstatus)
+{
+ ctrl->ch_status[3] &= ~mask;
+ ctrl->ch_status[3] |= cstatus & mask;
+}
+
+static void spdif_write_channel_status(struct fsl_spdif_priv *spdif_priv)
+{
+ struct spdif_mixer_control *ctrl = &spdif_priv->fsl_spdif_control;
+ struct regmap *regmap = spdif_priv->regmap;
+ struct platform_device *pdev = spdif_priv->pdev;
+ u32 ch_status;
+
+ ch_status = (bitrev8(ctrl->ch_status[0]) << 16) |
+ (bitrev8(ctrl->ch_status[1]) << 8) |
+ bitrev8(ctrl->ch_status[2]);
+ regmap_write(regmap, REG_SPDIF_STCSCH, ch_status);
+
+ dev_dbg(&pdev->dev, "STCSCH: 0x%06x\n", ch_status);
+
+ ch_status = bitrev8(ctrl->ch_status[3]) << 16;
+ regmap_write(regmap, REG_SPDIF_STCSCL, ch_status);
+
+ dev_dbg(&pdev->dev, "STCSCL: 0x%06x\n", ch_status);
+}
+
+/* Set SPDIF PhaseConfig register for rx clock */
+static int spdif_set_rx_clksrc(struct fsl_spdif_priv *spdif_priv,
+ enum spdif_gainsel gainsel, int dpll_locked)
+{
+ struct regmap *regmap = spdif_priv->regmap;
+ u8 clksrc = spdif_priv->rxclk_src;
+
+ if (clksrc >= SRPC_CLKSRC_MAX || gainsel >= GAINSEL_MULTI_MAX)
+ return -EINVAL;
+
+ regmap_update_bits(regmap, REG_SPDIF_SRPC,
+ SRPC_CLKSRC_SEL_MASK | SRPC_GAINSEL_MASK,
+ SRPC_CLKSRC_SEL_SET(clksrc) | SRPC_GAINSEL_SET(gainsel));
+
+ return 0;
+}
+
+static int spdif_set_sample_rate(struct snd_pcm_substream *substream,
+ int sample_rate)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(rtd->cpu_dai);
+ struct spdif_mixer_control *ctrl = &spdif_priv->fsl_spdif_control;
+ struct regmap *regmap = spdif_priv->regmap;
+ struct platform_device *pdev = spdif_priv->pdev;
+ unsigned long csfs = 0;
+ u32 stc, mask, rate;
+ u8 clk, div;
+ int ret;
+
+ switch (sample_rate) {
+ case 32000:
+ rate = SPDIF_TXRATE_32000;
+ csfs = IEC958_AES3_CON_FS_32000;
+ break;
+ case 44100:
+ rate = SPDIF_TXRATE_44100;
+ csfs = IEC958_AES3_CON_FS_44100;
+ break;
+ case 48000:
+ rate = SPDIF_TXRATE_48000;
+ csfs = IEC958_AES3_CON_FS_48000;
+ break;
+ default:
+ dev_err(&pdev->dev, "unsupported sample rate %d\n", sample_rate);
+ return -EINVAL;
+ }
+
+ clk = spdif_priv->txclk_src[rate];
+ if (clk >= STC_TXCLK_SRC_MAX) {
+ dev_err(&pdev->dev, "tx clock source is out of range\n");
+ return -EINVAL;
+ }
+
+ div = spdif_priv->txclk_div[rate];
+ if (div == 0) {
+ dev_err(&pdev->dev, "the divisor can't be zero\n");
+ return -EINVAL;
+ }
+
+ /*
+ * The S/PDIF block needs a clock of 64 * fs * div. The S/PDIF block
+ * will divide by (div). So request 64 * fs * (div+1) which will
+ * get rounded.
+ */
+ ret = clk_set_rate(spdif_priv->txclk[rate], 64 * sample_rate * (div + 1));
+ if (ret) {
+ dev_err(&pdev->dev, "failed to set tx clock rate\n");
+ return ret;
+ }
+
+ dev_dbg(&pdev->dev, "expected clock rate = %d\n",
+ (64 * sample_rate * div));
+ dev_dbg(&pdev->dev, "actual clock rate = %ld\n",
+ clk_get_rate(spdif_priv->txclk[rate]));
+
+ /* set fs field in consumer channel status */
+ spdif_set_cstatus(ctrl, IEC958_AES3_CON_FS, csfs);
+
+ /* select clock source and divisor */
+ stc = STC_TXCLK_ALL_EN | STC_TXCLK_SRC_SET(clk) | STC_TXCLK_DIV(div);
+ mask = STC_TXCLK_ALL_EN_MASK | STC_TXCLK_SRC_MASK | STC_TXCLK_DIV_MASK;
+ regmap_update_bits(regmap, REG_SPDIF_STC, mask, stc);
+
+ dev_dbg(&pdev->dev, "set sample rate to %d\n", sample_rate);
+
+ return 0;
+}
+
+int fsl_spdif_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *cpu_dai)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(rtd->cpu_dai);
+ struct platform_device *pdev = spdif_priv->pdev;
+ struct regmap *regmap = spdif_priv->regmap;
+ u32 scr, mask, i;
+ int ret;
+
+ /* Reset module and interrupts only for first initialization */
+ if (!cpu_dai->active) {
+ ret = spdif_softreset(spdif_priv);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to soft reset\n");
+ return ret;
+ }
+
+ /* Disable all the interrupts */
+ regmap_update_bits(regmap, REG_SPDIF_SIE, 0xffffff, 0);
+ }
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ scr = SCR_TXFIFO_AUTOSYNC | SCR_TXFIFO_CTRL_NORMAL |
+ SCR_TXSEL_NORMAL | SCR_USRC_SEL_CHIP |
+ SCR_TXFIFO_FSEL_IF8;
+ mask = SCR_TXFIFO_AUTOSYNC_MASK | SCR_TXFIFO_CTRL_MASK |
+ SCR_TXSEL_MASK | SCR_USRC_SEL_MASK |
+ SCR_TXFIFO_FSEL_MASK;
+ for (i = 0; i < SPDIF_TXRATE_MAX; i++)
+ clk_prepare_enable(spdif_priv->txclk[i]);
+ } else {
+ scr = SCR_RXFIFO_FSEL_IF8 | SCR_RXFIFO_AUTOSYNC;
+ mask = SCR_RXFIFO_FSEL_MASK | SCR_RXFIFO_AUTOSYNC_MASK|
+ SCR_RXFIFO_CTL_MASK | SCR_RXFIFO_OFF_MASK;
+ clk_prepare_enable(spdif_priv->rxclk);
+ }
+ regmap_update_bits(regmap, REG_SPDIF_SCR, mask, scr);
+
+ /* Power up SPDIF module */
+ regmap_update_bits(regmap, REG_SPDIF_SCR, SCR_LOW_POWER, 0);
+
+ return 0;
+}
+
+static void fsl_spdif_shutdown(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *cpu_dai)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(rtd->cpu_dai);
+ struct regmap *regmap = spdif_priv->regmap;
+ u32 scr, mask, i;
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ scr = 0;
+ mask = SCR_TXFIFO_AUTOSYNC_MASK | SCR_TXFIFO_CTRL_MASK |
+ SCR_TXSEL_MASK | SCR_USRC_SEL_MASK |
+ SCR_TXFIFO_FSEL_MASK;
+ for (i = 0; i < SPDIF_TXRATE_MAX; i++)
+ clk_disable_unprepare(spdif_priv->txclk[i]);
+ } else {
+ scr = SCR_RXFIFO_OFF | SCR_RXFIFO_CTL_ZERO;
+ mask = SCR_RXFIFO_FSEL_MASK | SCR_RXFIFO_AUTOSYNC_MASK|
+ SCR_RXFIFO_CTL_MASK | SCR_RXFIFO_OFF_MASK;
+ clk_disable_unprepare(spdif_priv->rxclk);
+ }
+ regmap_update_bits(regmap, REG_SPDIF_SCR, mask, scr);
+
+ /* Power down SPDIF module only if tx&rx are both inactive */
+ if (!cpu_dai->active) {
+ spdif_intr_status_clear(spdif_priv);
+ regmap_update_bits(regmap, REG_SPDIF_SCR,
+ SCR_LOW_POWER, SCR_LOW_POWER);
+ }
+}
+
+static int fsl_spdif_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(rtd->cpu_dai);
+ struct spdif_mixer_control *ctrl = &spdif_priv->fsl_spdif_control;
+ struct platform_device *pdev = spdif_priv->pdev;
+ u32 sample_rate = params_rate(params);
+ int ret = 0;
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ ret = spdif_set_sample_rate(substream, sample_rate);
+ if (ret) {
+ dev_err(&pdev->dev, "%s: set sample rate failed: %d\n",
+ __func__, sample_rate);
+ return ret;
+ }
+ spdif_set_cstatus(ctrl, IEC958_AES3_CON_CLOCK,
+ IEC958_AES3_CON_CLOCK_1000PPM);
+ spdif_write_channel_status(spdif_priv);
+ } else {
+ /* Setup rx clock source */
+ ret = spdif_set_rx_clksrc(spdif_priv, SPDIF_DEFAULT_GAINSEL, 1);
+ }
+
+ return ret;
+}
+
+static int fsl_spdif_trigger(struct snd_pcm_substream *substream,
+ int cmd, struct snd_soc_dai *dai)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(rtd->cpu_dai);
+ struct regmap *regmap = spdif_priv->regmap;
+ int is_playack = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK);
+ u32 intr = is_playack ? INTR_FOR_PLAYBACK : INTR_FOR_CAPTURE;
+ u32 dmaen = is_playack ? SCR_DMA_TX_EN : SCR_DMA_RX_EN;;
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ regmap_update_bits(regmap, REG_SPDIF_SIE, intr, intr);
+ regmap_update_bits(regmap, REG_SPDIF_SCR, dmaen, dmaen);
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ regmap_update_bits(regmap, REG_SPDIF_SCR, dmaen, 0);
+ regmap_update_bits(regmap, REG_SPDIF_SIE, intr, 0);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+struct snd_soc_dai_ops fsl_spdif_dai_ops = {
+ .startup = fsl_spdif_startup,
+ .hw_params = fsl_spdif_hw_params,
+ .trigger = fsl_spdif_trigger,
+ .shutdown = fsl_spdif_shutdown,
+};
+
+
+/*
+ * ============================================
+ * FSL SPDIF IEC958 controller(mixer) functions
+ *
+ * Channel status get/put control
+ * User bit value get/put control
+ * Valid bit value get control
+ * DPLL lock status get control
+ * User bit sync mode selection control
+ * ============================================
+ */
+
+static int fsl_spdif_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
+ uinfo->count = 1;
+
+ return 0;
+}
+
+static int fsl_spdif_pb_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *uvalue)
+{
+ struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+ struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(cpu_dai);
+ struct spdif_mixer_control *ctrl = &spdif_priv->fsl_spdif_control;
+
+ uvalue->value.iec958.status[0] = ctrl->ch_status[0];
+ uvalue->value.iec958.status[1] = ctrl->ch_status[1];
+ uvalue->value.iec958.status[2] = ctrl->ch_status[2];
+ uvalue->value.iec958.status[3] = ctrl->ch_status[3];
+
+ return 0;
+}
+
+static int fsl_spdif_pb_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *uvalue)
+{
+ struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+ struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(cpu_dai);
+ struct spdif_mixer_control *ctrl = &spdif_priv->fsl_spdif_control;
+
+ ctrl->ch_status[0] = uvalue->value.iec958.status[0];
+ ctrl->ch_status[1] = uvalue->value.iec958.status[1];
+ ctrl->ch_status[2] = uvalue->value.iec958.status[2];
+ ctrl->ch_status[3] = uvalue->value.iec958.status[3];
+
+ spdif_write_channel_status(spdif_priv);
+
+ return 0;
+}
+
+/* Get channel status from SPDIF_RX_CCHAN register */
+static int fsl_spdif_capture_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+ struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(cpu_dai);
+ struct regmap *regmap = spdif_priv->regmap;
+ u32 cstatus, val;
+
+ regmap_read(regmap, REG_SPDIF_SIS, &val);
+ if (!(val & INT_CNEW)) {
+ return -EAGAIN;
+ }
+
+ regmap_read(regmap, REG_SPDIF_SRCSH, &cstatus);
+ ucontrol->value.iec958.status[0] = (cstatus >> 16) & 0xFF;
+ ucontrol->value.iec958.status[1] = (cstatus >> 8) & 0xFF;
+ ucontrol->value.iec958.status[2] = cstatus & 0xFF;
+
+ regmap_read(regmap, REG_SPDIF_SRCSL, &cstatus);
+ ucontrol->value.iec958.status[3] = (cstatus >> 16) & 0xFF;
+ ucontrol->value.iec958.status[4] = (cstatus >> 8) & 0xFF;
+ ucontrol->value.iec958.status[5] = cstatus & 0xFF;
+
+ /* Clear intr */
+ regmap_write(regmap, REG_SPDIF_SIC, INT_CNEW);
+
+ return 0;
+}
+
+/*
+ * Get User bits (subcode) from chip value which readed out
+ * in UChannel register.
+ */
+static int fsl_spdif_subcode_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+ struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(cpu_dai);
+ struct spdif_mixer_control *ctrl = &spdif_priv->fsl_spdif_control;
+ unsigned long flags;
+ int ret = 0;
+
+ spin_lock_irqsave(&ctrl->ctl_lock, flags);
+ if (ctrl->ready_buf) {
+ int idx = (ctrl->ready_buf - 1) * SPDIF_UBITS_SIZE;
+ memcpy(&ucontrol->value.iec958.subcode[0],
+ &ctrl->subcode[idx], SPDIF_UBITS_SIZE);
+ } else {
+ ret = -EAGAIN;
+ }
+ spin_unlock_irqrestore(&ctrl->ctl_lock, flags);
+
+ return ret;
+}
+
+/* Q-subcode infomation. The byte size is SPDIF_UBITS_SIZE/8 */
+static int fsl_spdif_qinfo(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
+ uinfo->count = SPDIF_QSUB_SIZE;
+
+ return 0;
+}
+
+/* Get Q subcode from chip value which readed out in QChannel register */
+static int fsl_spdif_qget(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+ struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(cpu_dai);
+ struct spdif_mixer_control *ctrl = &spdif_priv->fsl_spdif_control;
+ unsigned long flags;
+ int ret = 0;
+
+ spin_lock_irqsave(&ctrl->ctl_lock, flags);
+ if (ctrl->ready_buf) {
+ int idx = (ctrl->ready_buf - 1) * SPDIF_QSUB_SIZE;
+ memcpy(&ucontrol->value.bytes.data[0],
+ &ctrl->qsub[idx], SPDIF_QSUB_SIZE);
+ } else {
+ ret = -EAGAIN;
+ }
+ spin_unlock_irqrestore(&ctrl->ctl_lock, flags);
+
+ return ret;
+}
+
+/* Valid bit infomation */
+static int fsl_spdif_vbit_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+ uinfo->count = 1;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = 1;
+
+ return 0;
+}
+
+/* Get valid good bit from interrupt status register */
+static int fsl_spdif_vbit_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+ struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(cpu_dai);
+ struct regmap *regmap = spdif_priv->regmap;
+ u32 val;
+
+ val = regmap_read(regmap, REG_SPDIF_SIS, &val);
+ ucontrol->value.integer.value[0] = (val & INT_VAL_NOGOOD) != 0;
+ regmap_write(regmap, REG_SPDIF_SIC, INT_VAL_NOGOOD);
+
+ return 0;
+}
+
+/* DPLL lock infomation */
+static int fsl_spdif_rxrate_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = 1;
+ uinfo->value.integer.min = 16000;
+ uinfo->value.integer.max = 96000;
+
+ return 0;
+}
+
+static u32 gainsel_multi[GAINSEL_MULTI_MAX] = {
+ 24, 16, 12, 8, 6, 4, 3,
+};
+
+/* Get RX data clock rate given the SPDIF bus_clk */
+static int spdif_get_rxclk_rate(struct fsl_spdif_priv *spdif_priv,
+ enum spdif_gainsel gainsel)
+{
+ struct regmap *regmap = spdif_priv->regmap;
+ struct platform_device *pdev = spdif_priv->pdev;
+ u64 tmpval64, busclk_freq = 0;
+ u32 freqmeas, phaseconf;
+ u8 clksrc;
+
+ regmap_read(regmap, REG_SPDIF_SRFM, &freqmeas);
+ regmap_read(regmap, REG_SPDIF_SRPC, &phaseconf);
+
+ clksrc = (phaseconf >> SRPC_CLKSRC_SEL_OFFSET) & 0xf;
+ if (srpc_dpll_locked[clksrc] && (phaseconf & SRPC_DPLL_LOCKED)) {
+ /* Get bus clock from system */
+ busclk_freq = clk_get_rate(spdif_priv->rxclk);
+ }
+
+ /* FreqMeas_CLK = (BUS_CLK * FreqMeas) / 2 ^ 10 / GAINSEL / 128 */
+ tmpval64 = (u64) busclk_freq * freqmeas;
+ do_div(tmpval64, gainsel_multi[gainsel] * 1024);
+ do_div(tmpval64, 128 * 1024);
+
+ dev_dbg(&pdev->dev, "FreqMeas: %d\n", freqmeas);
+ dev_dbg(&pdev->dev, "BusclkFreq: %lld\n", busclk_freq);
+ dev_dbg(&pdev->dev, "RxRate: %lld\n", tmpval64);
+
+ return (int)tmpval64;
+}
+
+/*
+ * Get DPLL lock or not info from stable interrupt status register.
+ * User application must use this control to get locked,
+ * then can do next PCM operation
+ */
+static int fsl_spdif_rxrate_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+ struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(cpu_dai);
+ int rate = spdif_get_rxclk_rate(spdif_priv, SPDIF_DEFAULT_GAINSEL);
+
+ if (spdif_priv->dpll_locked)
+ ucontrol->value.integer.value[0] = rate;
+ else
+ ucontrol->value.integer.value[0] = 0;
+
+ return 0;
+}
+
+/* User bit sync mode info */
+static int fsl_spdif_usync_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+ uinfo->count = 1;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = 1;
+
+ return 0;
+}
+
+/*
+ * User bit sync mode:
+ * 1 CD User channel subcode
+ * 0 Non-CD data
+ */
+static int fsl_spdif_usync_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+ struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(cpu_dai);
+ struct regmap *regmap = spdif_priv->regmap;
+ u32 val;
+
+ regmap_read(regmap, REG_SPDIF_SRCD, &val);
+ ucontrol->value.integer.value[0] = (val & SRCD_CD_USER) != 0;
+
+ return 0;
+}
+
+/*
+ * User bit sync mode:
+ * 1 CD User channel subcode
+ * 0 Non-CD data
+ */
+static int fsl_spdif_usync_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+ struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(cpu_dai);
+ struct regmap *regmap = spdif_priv->regmap;
+ u32 val = ucontrol->value.integer.value[0] << SRCD_CD_USER_OFFSET;
+
+ regmap_update_bits(regmap, REG_SPDIF_SRCD, SRCD_CD_USER, val);
+
+ return 0;
+}
+
+/* FSL SPDIF IEC958 controller defines */
+static struct snd_kcontrol_new fsl_spdif_ctrls[] = {
+ /* Status cchanel controller */
+ {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
+ .access = SNDRV_CTL_ELEM_ACCESS_READ |
+ SNDRV_CTL_ELEM_ACCESS_WRITE |
+ SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+ .info = fsl_spdif_info,
+ .get = fsl_spdif_pb_get,
+ .put = fsl_spdif_pb_put,
+ },
+ {
+ .iface = SNDRV_CTL_ELEM_IFACE_PCM,
+ .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, DEFAULT),
+ .access = SNDRV_CTL_ELEM_ACCESS_READ |
+ SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+ .info = fsl_spdif_info,
+ .get = fsl_spdif_capture_get,
+ },
+ /* User bits controller */
+ {
+ .iface = SNDRV_CTL_ELEM_IFACE_PCM,
+ .name = "IEC958 Subcode Capture Default",
+ .access = SNDRV_CTL_ELEM_ACCESS_READ |
+ SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+ .info = fsl_spdif_info,
+ .get = fsl_spdif_subcode_get,
+ },
+ {
+ .iface = SNDRV_CTL_ELEM_IFACE_PCM,
+ .name = "IEC958 Q-subcode Capture Default",
+ .access = SNDRV_CTL_ELEM_ACCESS_READ |
+ SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+ .info = fsl_spdif_qinfo,
+ .get = fsl_spdif_qget,
+ },
+ /* Valid bit error controller */
+ {
+ .iface = SNDRV_CTL_ELEM_IFACE_PCM,
+ .name = "IEC958 V-Bit Errors",
+ .access = SNDRV_CTL_ELEM_ACCESS_READ |
+ SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+ .info = fsl_spdif_vbit_info,
+ .get = fsl_spdif_vbit_get,
+ },
+ /* DPLL lock info get controller */
+ {
+ .iface = SNDRV_CTL_ELEM_IFACE_PCM,
+ .name = "RX Sample Rate",
+ .access = SNDRV_CTL_ELEM_ACCESS_READ |
+ SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+ .info = fsl_spdif_rxrate_info,
+ .get = fsl_spdif_rxrate_get,
+ },
+ /* User bit sync mode set/get controller */
+ {
+ .iface = SNDRV_CTL_ELEM_IFACE_PCM,
+ .name = "IEC958 USyncMode CDText",
+ .access = SNDRV_CTL_ELEM_ACCESS_READ |
+ SNDRV_CTL_ELEM_ACCESS_WRITE |
+ SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+ .info = fsl_spdif_usync_info,
+ .get = fsl_spdif_usync_get,
+ .put = fsl_spdif_usync_put,
+ },
+};
+
+static int fsl_spdif_dai_probe(struct snd_soc_dai *dai)
+{
+ struct fsl_spdif_priv *spdif_private = snd_soc_dai_get_drvdata(dai);
+
+ dai->playback_dma_data = &spdif_private->dma_params_tx;
+ dai->capture_dma_data = &spdif_private->dma_params_rx;
+
+ snd_soc_add_dai_controls(dai, fsl_spdif_ctrls, ARRAY_SIZE(fsl_spdif_ctrls));
+
+ return 0;
+}
+
+struct snd_soc_dai_driver fsl_spdif_dai = {
+ .probe = &fsl_spdif_dai_probe,
+ .playback = {
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = FSL_SPDIF_RATES_PLAYBACK,
+ .formats = FSL_SPDIF_FORMATS_PLAYBACK,
+ },
+ .capture = {
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = FSL_SPDIF_RATES_CAPTURE,
+ .formats = FSL_SPDIF_FORMATS_CAPTURE,
+ },
+ .ops = &fsl_spdif_dai_ops,
+};
+
+static const struct snd_soc_component_driver fsl_spdif_component = {
+ .name = "fsl-spdif",
+};
+
+/*
+ * ================
+ * FSL SPDIF REGMAP
+ * ================
+ */
+
+static bool fsl_spdif_readable_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case REG_SPDIF_SCR:
+ case REG_SPDIF_SRCD:
+ case REG_SPDIF_SRPC:
+ case REG_SPDIF_SIE:
+ case REG_SPDIF_SIS:
+ case REG_SPDIF_SRL:
+ case REG_SPDIF_SRR:
+ case REG_SPDIF_SRCSH:
+ case REG_SPDIF_SRCSL:
+ case REG_SPDIF_SRU:
+ case REG_SPDIF_SRQ:
+ case REG_SPDIF_STCSCH:
+ case REG_SPDIF_STCSCL:
+ case REG_SPDIF_SRFM:
+ case REG_SPDIF_STC:
+ return true;
+ default:
+ return false;
+ };
+}
+
+static bool fsl_spdif_writeable_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case REG_SPDIF_SCR:
+ case REG_SPDIF_SRCD:
+ case REG_SPDIF_SRPC:
+ case REG_SPDIF_SIE:
+ case REG_SPDIF_SIC:
+ case REG_SPDIF_STL:
+ case REG_SPDIF_STR:
+ case REG_SPDIF_STCSCH:
+ case REG_SPDIF_STCSCL:
+ case REG_SPDIF_STC:
+ return true;
+ default:
+ return false;
+ };
+}
+
+static const struct regmap_config fsl_spdif_regmap_config = {
+ .reg_bits = 32,
+ .reg_stride = 4,
+ .val_bits = 32,
+
+ .max_register = REG_SPDIF_STC,
+ .readable_reg = fsl_spdif_readable_reg,
+ .writeable_reg = fsl_spdif_writeable_reg,
+};
+
+static u32 fsl_spdif_txclk_caldiv(struct fsl_spdif_priv *spdif_priv,
+ struct clk *clk, u64 savesub,
+ enum spdif_txrate index)
+{
+ const u32 rate[] = { 32000, 44100, 48000 };
+ u64 rate_ideal, rate_actual, sub;
+ u32 div, arate;
+
+ for (div = 1; div <= 128; div++) {
+ rate_ideal = rate[index] * (div + 1) * 64;
+ rate_actual = clk_round_rate(clk, rate_ideal);
+
+ arate = rate_actual / 64;
+ arate /= div;
+
+ if (arate == rate[index]) {
+ /* We are lucky */
+ savesub = 0;
+ spdif_priv->txclk_div[index] = div;
+ break;
+ } else if (arate / rate[index] == 1) {
+ /* A little bigger than expect */
+ sub = (arate - rate[index]) * 100000;
+ do_div(sub, rate[index]);
+ if (sub < savesub) {
+ savesub = sub;
+ spdif_priv->txclk_div[index] = div;
+ }
+ } else if (rate[index] / arate == 1) {
+ /* A little smaller than expect */
+ sub = (rate[index] - arate) * 100000;
+ do_div(sub, rate[index]);
+ if (sub < savesub) {
+ savesub = sub;
+ spdif_priv->txclk_div[index] = div;
+ }
+ }
+ }
+
+ return savesub;
+}
+
+static int fsl_spdif_probe_txclk(struct fsl_spdif_priv *spdif_priv,
+ enum spdif_txrate index)
+{
+ const u32 rate[] = { 32000, 44100, 48000 };
+ struct platform_device *pdev = spdif_priv->pdev;
+ struct device *dev = &pdev->dev;
+ u64 savesub = 100000, ret;
+ struct clk *clk;
+ char tmp[16];
+ int i;
+
+ for (i = 0; i < STC_TXCLK_SRC_MAX; i++) {
+ sprintf(tmp, "rxtx%d", i);
+ clk = devm_clk_get(&pdev->dev, tmp);
+ if (IS_ERR(clk)) {
+ dev_err(dev, "no rxtx%d clock in devicetree\n", i);
+ return PTR_ERR(clk);
+ }
+ if (!clk_get_rate(clk))
+ continue;
+
+ ret = fsl_spdif_txclk_caldiv(spdif_priv, clk, savesub, index);
+ if (savesub == ret)
+ continue;
+
+ savesub = ret;
+ spdif_priv->txclk[index] = clk;
+ spdif_priv->txclk_src[index] = i;
+
+ /* To quick catch a divisor, we allow a 0.1% deviation */
+ if (savesub < 100)
+ break;
+ }
+
+ dev_dbg(&pdev->dev, "use rxtx%d as tx clock source for %dHz sample rate",
+ spdif_priv->txclk_src[index], rate[index]);
+ dev_dbg(&pdev->dev, "use divisor %d for %dHz sample rate",
+ spdif_priv->txclk_div[index], rate[index]);
+
+ return 0;
+}
+
+static int fsl_spdif_probe(struct platform_device *pdev)
+{
+ struct device_node *np = pdev->dev.of_node;
+ struct fsl_spdif_priv *spdif_priv;
+ struct spdif_mixer_control *ctrl;
+ struct resource *res;
+ void __iomem *regs;
+ int irq, ret, i;
+
+ if (!np)
+ return -ENODEV;
+
+ spdif_priv = devm_kzalloc(&pdev->dev,
+ sizeof(struct fsl_spdif_priv) + strlen(np->name) + 1,
+ GFP_KERNEL);
+ if (!spdif_priv)
+ return -ENOMEM;
+
+ strcpy(spdif_priv->name, np->name);
+
+ spdif_priv->pdev = pdev;
+
+ /* Initialize this copy of the CPU DAI driver structure */
+ memcpy(&spdif_priv->cpu_dai_drv, &fsl_spdif_dai, sizeof(fsl_spdif_dai));
+ spdif_priv->cpu_dai_drv.name = spdif_priv->name;
+
+ /* Get the addresses and IRQ */
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (IS_ERR(res)) {
+ dev_err(&pdev->dev, "could not determine device resources\n");
+ return PTR_ERR(res);
+ }
+
+ regs = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(regs)) {
+ dev_err(&pdev->dev, "could not map device resources\n");
+ return PTR_ERR(regs);
+ }
+
+ spdif_priv->regmap = devm_regmap_init_mmio_clk(&pdev->dev,
+ "core", regs, &fsl_spdif_regmap_config);
+ if (IS_ERR(spdif_priv->regmap)) {
+ dev_err(&pdev->dev, "regmap init failed\n");
+ return PTR_ERR(spdif_priv->regmap);
+ }
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ dev_err(&pdev->dev, "no irq for node %s\n", np->full_name);
+ return irq;
+ }
+
+ ret = devm_request_irq(&pdev->dev, irq, spdif_isr, 0,
+ spdif_priv->name, spdif_priv);
+ if (ret) {
+ dev_err(&pdev->dev, "could not claim irq %u\n", irq);
+ return ret;
+ }
+
+ /* Select clock source for rx/tx clock */
+ spdif_priv->rxclk = devm_clk_get(&pdev->dev, "rxtx1");
+ if (IS_ERR(spdif_priv->rxclk)) {
+ dev_err(&pdev->dev, "no rxtx1 clock in devicetree\n");
+ return PTR_ERR(spdif_priv->rxclk);
+ }
+ spdif_priv->rxclk_src = DEFAULT_RXCLK_SRC;
+
+ for (i = 0; i < SPDIF_TXRATE_MAX; i++) {
+ ret = fsl_spdif_probe_txclk(spdif_priv, i);
+ if (ret)
+ return ret;
+ }
+
+ /* Initial spinlock for control data */
+ ctrl = &spdif_priv->fsl_spdif_control;
+ spin_lock_init(&ctrl->ctl_lock);
+
+ /* Init tx channel status default value */
+ ctrl->ch_status[0] =
+ IEC958_AES0_CON_NOT_COPYRIGHT | IEC958_AES0_CON_EMPHASIS_5015;
+ ctrl->ch_status[1] = IEC958_AES1_CON_DIGDIGCONV_ID;
+ ctrl->ch_status[2] = 0x00;
+ ctrl->ch_status[3] =
+ IEC958_AES3_CON_FS_44100 | IEC958_AES3_CON_CLOCK_1000PPM;
+
+ spdif_priv->dpll_locked = false;
+
+ spdif_priv->dma_params_tx.maxburst = FSL_SPDIF_TXFIFO_WML;
+ spdif_priv->dma_params_rx.maxburst = FSL_SPDIF_RXFIFO_WML;
+ spdif_priv->dma_params_tx.addr = res->start + REG_SPDIF_STL;
+ spdif_priv->dma_params_rx.addr = res->start + REG_SPDIF_SRL;
+
+ /* Register with ASoC */
+ dev_set_drvdata(&pdev->dev, spdif_priv);
+
+ ret = snd_soc_register_component(&pdev->dev, &fsl_spdif_component,
+ &spdif_priv->cpu_dai_drv, 1);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to register DAI: %d\n", ret);
+ goto error_dev;
+ }
+
+ ret = imx_pcm_dma_init(pdev);
+ if (ret) {
+ dev_err(&pdev->dev, "imx_pcm_dma_init failed: %d\n", ret);
+ goto error_component;
+ }
+
+ return ret;
+
+error_component:
+ snd_soc_unregister_component(&pdev->dev);
+error_dev:
+ dev_set_drvdata(&pdev->dev, NULL);
+
+ return ret;
+}
+
+static int fsl_spdif_remove(struct platform_device *pdev)
+{
+ imx_pcm_dma_exit(pdev);
+ snd_soc_unregister_component(&pdev->dev);
+ dev_set_drvdata(&pdev->dev, NULL);
+
+ return 0;
+}
+
+static const struct of_device_id fsl_spdif_dt_ids[] = {
+ { .compatible = "fsl,imx35-spdif", },
+ {}
+};
+MODULE_DEVICE_TABLE(of, fsl_spdif_dt_ids);
+
+static struct platform_driver fsl_spdif_driver = {
+ .driver = {
+ .name = "fsl-spdif-dai",
+ .owner = THIS_MODULE,
+ .of_match_table = fsl_spdif_dt_ids,
+ },
+ .probe = fsl_spdif_probe,
+ .remove = fsl_spdif_remove,
+};
+
+module_platform_driver(fsl_spdif_driver);
+
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_DESCRIPTION("Freescale S/PDIF CPU DAI Driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:fsl-spdif-dai");
diff --git a/sound/soc/fsl/fsl_spdif.h b/sound/soc/fsl/fsl_spdif.h
new file mode 100644
index 000000000000..b1266790d117
--- /dev/null
+++ b/sound/soc/fsl/fsl_spdif.h
@@ -0,0 +1,191 @@
+/*
+ * fsl_spdif.h - ALSA S/PDIF interface for the Freescale i.MX SoC
+ *
+ * Copyright (C) 2013 Freescale Semiconductor, Inc.
+ *
+ * Author: Nicolin Chen <b42378@freescale.com>
+ *
+ * Based on fsl_ssi.h
+ * Author: Timur Tabi <timur@freescale.com>
+ * Copyright 2007-2008 Freescale Semiconductor, Inc.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#ifndef _FSL_SPDIF_DAI_H
+#define _FSL_SPDIF_DAI_H
+
+/* S/PDIF Register Map */
+#define REG_SPDIF_SCR 0x0 /* SPDIF Configuration Register */
+#define REG_SPDIF_SRCD 0x4 /* CDText Control Register */
+#define REG_SPDIF_SRPC 0x8 /* PhaseConfig Register */
+#define REG_SPDIF_SIE 0xc /* InterruptEn Register */
+#define REG_SPDIF_SIS 0x10 /* InterruptStat Register */
+#define REG_SPDIF_SIC 0x10 /* InterruptClear Register */
+#define REG_SPDIF_SRL 0x14 /* SPDIFRxLeft Register */
+#define REG_SPDIF_SRR 0x18 /* SPDIFRxRight Register */
+#define REG_SPDIF_SRCSH 0x1c /* SPDIFRxCChannel_h Register */
+#define REG_SPDIF_SRCSL 0x20 /* SPDIFRxCChannel_l Register */
+#define REG_SPDIF_SRU 0x24 /* UchannelRx Register */
+#define REG_SPDIF_SRQ 0x28 /* QchannelRx Register */
+#define REG_SPDIF_STL 0x2C /* SPDIFTxLeft Register */
+#define REG_SPDIF_STR 0x30 /* SPDIFTxRight Register */
+#define REG_SPDIF_STCSCH 0x34 /* SPDIFTxCChannelCons_h Register */
+#define REG_SPDIF_STCSCL 0x38 /* SPDIFTxCChannelCons_l Register */
+#define REG_SPDIF_SRFM 0x44 /* FreqMeas Register */
+#define REG_SPDIF_STC 0x50 /* SPDIFTxClk Register */
+
+
+/* SPDIF Configuration register */
+#define SCR_RXFIFO_CTL_OFFSET 23
+#define SCR_RXFIFO_CTL_MASK (1 << SCR_RXFIFO_CTL_OFFSET)
+#define SCR_RXFIFO_CTL_ZERO (1 << SCR_RXFIFO_CTL_OFFSET)
+#define SCR_RXFIFO_OFF_OFFSET 22
+#define SCR_RXFIFO_OFF_MASK (1 << SCR_RXFIFO_OFF_OFFSET)
+#define SCR_RXFIFO_OFF (1 << SCR_RXFIFO_OFF_OFFSET)
+#define SCR_RXFIFO_RST_OFFSET 21
+#define SCR_RXFIFO_RST_MASK (1 << SCR_RXFIFO_RST_OFFSET)
+#define SCR_RXFIFO_RST (1 << SCR_RXFIFO_RST_OFFSET)
+#define SCR_RXFIFO_FSEL_OFFSET 19
+#define SCR_RXFIFO_FSEL_MASK (0x3 << SCR_RXFIFO_FSEL_OFFSET)
+#define SCR_RXFIFO_FSEL_IF0 (0x0 << SCR_RXFIFO_FSEL_OFFSET)
+#define SCR_RXFIFO_FSEL_IF4 (0x1 << SCR_RXFIFO_FSEL_OFFSET)
+#define SCR_RXFIFO_FSEL_IF8 (0x2 << SCR_RXFIFO_FSEL_OFFSET)
+#define SCR_RXFIFO_FSEL_IF12 (0x3 << SCR_RXFIFO_FSEL_OFFSET)
+#define SCR_RXFIFO_AUTOSYNC_OFFSET 18
+#define SCR_RXFIFO_AUTOSYNC_MASK (1 << SCR_RXFIFO_AUTOSYNC_OFFSET)
+#define SCR_RXFIFO_AUTOSYNC (1 << SCR_RXFIFO_AUTOSYNC_OFFSET)
+#define SCR_TXFIFO_AUTOSYNC_OFFSET 17
+#define SCR_TXFIFO_AUTOSYNC_MASK (1 << SCR_TXFIFO_AUTOSYNC_OFFSET)
+#define SCR_TXFIFO_AUTOSYNC (1 << SCR_TXFIFO_AUTOSYNC_OFFSET)
+#define SCR_TXFIFO_FSEL_OFFSET 15
+#define SCR_TXFIFO_FSEL_MASK (0x3 << SCR_TXFIFO_FSEL_OFFSET)
+#define SCR_TXFIFO_FSEL_IF0 (0x0 << SCR_TXFIFO_FSEL_OFFSET)
+#define SCR_TXFIFO_FSEL_IF4 (0x1 << SCR_TXFIFO_FSEL_OFFSET)
+#define SCR_TXFIFO_FSEL_IF8 (0x2 << SCR_TXFIFO_FSEL_OFFSET)
+#define SCR_TXFIFO_FSEL_IF12 (0x3 << SCR_TXFIFO_FSEL_OFFSET)
+#define SCR_LOW_POWER (1 << 13)
+#define SCR_SOFT_RESET (1 << 12)
+#define SCR_TXFIFO_CTRL_OFFSET 10
+#define SCR_TXFIFO_CTRL_MASK (0x3 << SCR_TXFIFO_CTRL_OFFSET)
+#define SCR_TXFIFO_CTRL_ZERO (0x0 << SCR_TXFIFO_CTRL_OFFSET)
+#define SCR_TXFIFO_CTRL_NORMAL (0x1 << SCR_TXFIFO_CTRL_OFFSET)
+#define SCR_TXFIFO_CTRL_ONESAMPLE (0x2 << SCR_TXFIFO_CTRL_OFFSET)
+#define SCR_DMA_RX_EN_OFFSET 9
+#define SCR_DMA_RX_EN_MASK (1 << SCR_DMA_RX_EN_OFFSET)
+#define SCR_DMA_RX_EN (1 << SCR_DMA_RX_EN_OFFSET)
+#define SCR_DMA_TX_EN_OFFSET 8
+#define SCR_DMA_TX_EN_MASK (1 << SCR_DMA_TX_EN_OFFSET)
+#define SCR_DMA_TX_EN (1 << SCR_DMA_TX_EN_OFFSET)
+#define SCR_VAL_OFFSET 5
+#define SCR_VAL_MASK (1 << SCR_VAL_OFFSET)
+#define SCR_VAL_CLEAR (1 << SCR_VAL_OFFSET)
+#define SCR_TXSEL_OFFSET 2
+#define SCR_TXSEL_MASK (0x7 << SCR_TXSEL_OFFSET)
+#define SCR_TXSEL_OFF (0 << SCR_TXSEL_OFFSET)
+#define SCR_TXSEL_RX (1 << SCR_TXSEL_OFFSET)
+#define SCR_TXSEL_NORMAL (0x5 << SCR_TXSEL_OFFSET)
+#define SCR_USRC_SEL_OFFSET 0x0
+#define SCR_USRC_SEL_MASK (0x3 << SCR_USRC_SEL_OFFSET)
+#define SCR_USRC_SEL_NONE (0x0 << SCR_USRC_SEL_OFFSET)
+#define SCR_USRC_SEL_RECV (0x1 << SCR_USRC_SEL_OFFSET)
+#define SCR_USRC_SEL_CHIP (0x3 << SCR_USRC_SEL_OFFSET)
+
+/* SPDIF CDText control */
+#define SRCD_CD_USER_OFFSET 1
+#define SRCD_CD_USER (1 << SRCD_CD_USER_OFFSET)
+
+/* SPDIF Phase Configuration register */
+#define SRPC_DPLL_LOCKED (1 << 6)
+#define SRPC_CLKSRC_SEL_OFFSET 7
+#define SRPC_CLKSRC_SEL_MASK (0xf << SRPC_CLKSRC_SEL_OFFSET)
+#define SRPC_CLKSRC_SEL_SET(x) ((x << SRPC_CLKSRC_SEL_OFFSET) & SRPC_CLKSRC_SEL_MASK)
+#define SRPC_CLKSRC_SEL_LOCKED_OFFSET1 5
+#define SRPC_CLKSRC_SEL_LOCKED_OFFSET2 2
+#define SRPC_GAINSEL_OFFSET 3
+#define SRPC_GAINSEL_MASK (0x7 << SRPC_GAINSEL_OFFSET)
+#define SRPC_GAINSEL_SET(x) ((x << SRPC_GAINSEL_OFFSET) & SRPC_GAINSEL_MASK)
+
+#define SRPC_CLKSRC_MAX 16
+
+enum spdif_gainsel {
+ GAINSEL_MULTI_24 = 0,
+ GAINSEL_MULTI_16,
+ GAINSEL_MULTI_12,
+ GAINSEL_MULTI_8,
+ GAINSEL_MULTI_6,
+ GAINSEL_MULTI_4,
+ GAINSEL_MULTI_3,
+};
+#define GAINSEL_MULTI_MAX (GAINSEL_MULTI_3 + 1)
+#define SPDIF_DEFAULT_GAINSEL GAINSEL_MULTI_8
+
+/* SPDIF interrupt mask define */
+#define INT_DPLL_LOCKED (1 << 20)
+#define INT_TXFIFO_UNOV (1 << 19)
+#define INT_TXFIFO_RESYNC (1 << 18)
+#define INT_CNEW (1 << 17)
+#define INT_VAL_NOGOOD (1 << 16)
+#define INT_SYM_ERR (1 << 15)
+#define INT_BIT_ERR (1 << 14)
+#define INT_URX_FUL (1 << 10)
+#define INT_URX_OV (1 << 9)
+#define INT_QRX_FUL (1 << 8)
+#define INT_QRX_OV (1 << 7)
+#define INT_UQ_SYNC (1 << 6)
+#define INT_UQ_ERR (1 << 5)
+#define INT_RXFIFO_UNOV (1 << 4)
+#define INT_RXFIFO_RESYNC (1 << 3)
+#define INT_LOSS_LOCK (1 << 2)
+#define INT_TX_EM (1 << 1)
+#define INT_RXFIFO_FUL (1 << 0)
+
+/* SPDIF Clock register */
+#define STC_SYSCLK_DIV_OFFSET 11
+#define STC_SYSCLK_DIV_MASK (0x1ff << STC_TXCLK_SRC_OFFSET)
+#define STC_SYSCLK_DIV(x) ((((x) - 1) << STC_TXCLK_DIV_OFFSET) & STC_SYSCLK_DIV_MASK)
+#define STC_TXCLK_SRC_OFFSET 8
+#define STC_TXCLK_SRC_MASK (0x7 << STC_TXCLK_SRC_OFFSET)
+#define STC_TXCLK_SRC_SET(x) ((x << STC_TXCLK_SRC_OFFSET) & STC_TXCLK_SRC_MASK)
+#define STC_TXCLK_ALL_EN_OFFSET 7
+#define STC_TXCLK_ALL_EN_MASK (1 << STC_TXCLK_ALL_EN_OFFSET)
+#define STC_TXCLK_ALL_EN (1 << STC_TXCLK_ALL_EN_OFFSET)
+#define STC_TXCLK_DIV_OFFSET 0
+#define STC_TXCLK_DIV_MASK (0x7ff << STC_TXCLK_DIV_OFFSET)
+#define STC_TXCLK_DIV(x) ((((x) - 1) << STC_TXCLK_DIV_OFFSET) & STC_TXCLK_DIV_MASK)
+#define STC_TXCLK_SRC_MAX 8
+
+/* SPDIF tx rate */
+enum spdif_txrate {
+ SPDIF_TXRATE_32000 = 0,
+ SPDIF_TXRATE_44100,
+ SPDIF_TXRATE_48000,
+};
+#define SPDIF_TXRATE_MAX (SPDIF_TXRATE_48000 + 1)
+
+
+#define SPDIF_CSTATUS_BYTE 6
+#define SPDIF_UBITS_SIZE 96
+#define SPDIF_QSUB_SIZE (SPDIF_UBITS_SIZE / 8)
+
+
+#define FSL_SPDIF_RATES_PLAYBACK (SNDRV_PCM_RATE_32000 | \
+ SNDRV_PCM_RATE_44100 | \
+ SNDRV_PCM_RATE_48000)
+
+#define FSL_SPDIF_RATES_CAPTURE (SNDRV_PCM_RATE_16000 | \
+ SNDRV_PCM_RATE_32000 | \
+ SNDRV_PCM_RATE_44100 | \
+ SNDRV_PCM_RATE_48000 | \
+ SNDRV_PCM_RATE_64000 | \
+ SNDRV_PCM_RATE_96000)
+
+#define FSL_SPDIF_FORMATS_PLAYBACK (SNDRV_PCM_FMTBIT_S16_LE | \
+ SNDRV_PCM_FMTBIT_S20_3LE | \
+ SNDRV_PCM_FMTBIT_S24_LE)
+
+#define FSL_SPDIF_FORMATS_CAPTURE (SNDRV_PCM_FMTBIT_S24_LE)
+
+#endif /* _FSL_SPDIF_DAI_H */
diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
index 2f2d837df07f..3168998dcf1d 100644
--- a/sound/soc/fsl/fsl_ssi.c
+++ b/sound/soc/fsl/fsl_ssi.c
@@ -8,6 +8,26 @@
* This file is licensed under the terms of the GNU General Public License
* version 2. This program is licensed "as is" without any warranty of any
* kind, whether express or implied.
+ *
+ *
+ * Some notes why imx-pcm-fiq is used instead of DMA on some boards:
+ *
+ * The i.MX SSI core has some nasty limitations in AC97 mode. While most
+ * sane processor vendors have a FIFO per AC97 slot, the i.MX has only
+ * one FIFO which combines all valid receive slots. We cannot even select
+ * which slots we want to receive. The WM9712 with which this driver
+ * was developed with always sends GPIO status data in slot 12 which
+ * we receive in our (PCM-) data stream. The only chance we have is to
+ * manually skip this data in the FIQ handler. With sampling rates different
+ * from 48000Hz not every frame has valid receive data, so the ratio
+ * between pcm data and GPIO status data changes. Our FIQ handler is not
+ * able to handle this, hence this driver only works with 48000Hz sampling
+ * rate.
+ * Reading and writing AC97 registers is another challenge. The core
+ * provides us status bits when the read register is updated with *another*
+ * value. When we read the same register two times (and the register still
+ * contains the same value) these status bits are not set. We work
+ * around this by not polling these bits but only wait a fixed delay.
*/
#include <linux/init.h>
@@ -36,7 +56,7 @@
#define read_ssi(addr) in_be32(addr)
#define write_ssi(val, addr) out_be32(addr, val)
#define write_ssi_mask(addr, clear, set) clrsetbits_be32(addr, clear, set)
-#elif defined ARM
+#else
#define read_ssi(addr) readl(addr)
#define write_ssi(val, addr) writel(val, addr)
/*
@@ -121,11 +141,13 @@ struct fsl_ssi_private {
bool new_binding;
bool ssi_on_imx;
+ bool use_dma;
struct clk *clk;
struct snd_dmaengine_dai_dma_data dma_params_tx;
struct snd_dmaengine_dai_dma_data dma_params_rx;
struct imx_dma_data filter_data_tx;
struct imx_dma_data filter_data_rx;
+ struct imx_pcm_fiq_params fiq_params;
struct {
unsigned int rfrc;
@@ -355,7 +377,12 @@ static int fsl_ssi_startup(struct snd_pcm_substream *substream,
*/
/* Enable the interrupts and DMA requests */
- write_ssi(SIER_FLAGS, &ssi->sier);
+ if (ssi_private->use_dma)
+ write_ssi(SIER_FLAGS, &ssi->sier);
+ else
+ write_ssi(CCSR_SSI_SIER_TIE | CCSR_SSI_SIER_TFE0_EN |
+ CCSR_SSI_SIER_RIE |
+ CCSR_SSI_SIER_RFF0_EN, &ssi->sier);
/*
* Set the watermark for transmit FIFI 0 and receive FIFO 0. We
@@ -510,6 +537,9 @@ static int fsl_ssi_trigger(struct snd_pcm_substream *substream, int cmd,
write_ssi_mask(&ssi->scr, CCSR_SSI_SCR_TE, 0);
else
write_ssi_mask(&ssi->scr, CCSR_SSI_SCR_RE, 0);
+
+ if ((read_ssi(&ssi->scr) & (CCSR_SSI_SCR_TE | CCSR_SSI_SCR_RE)) == 0)
+ write_ssi_mask(&ssi->scr, CCSR_SSI_SCR_SSIEN, 0);
break;
default:
@@ -534,22 +564,13 @@ static void fsl_ssi_shutdown(struct snd_pcm_substream *substream,
ssi_private->first_stream = ssi_private->second_stream;
ssi_private->second_stream = NULL;
-
- /*
- * If this is the last active substream, disable the SSI.
- */
- if (!ssi_private->first_stream) {
- struct ccsr_ssi __iomem *ssi = ssi_private->ssi;
-
- write_ssi_mask(&ssi->scr, CCSR_SSI_SCR_SSIEN, 0);
- }
}
static int fsl_ssi_dai_probe(struct snd_soc_dai *dai)
{
struct fsl_ssi_private *ssi_private = snd_soc_dai_get_drvdata(dai);
- if (ssi_private->ssi_on_imx) {
+ if (ssi_private->ssi_on_imx && ssi_private->use_dma) {
dai->playback_dma_data = &ssi_private->dma_params_tx;
dai->capture_dma_data = &ssi_private->dma_params_rx;
}
@@ -680,7 +701,7 @@ static int fsl_ssi_probe(struct platform_device *pdev)
/* The DAI name is the last part of the full name of the node. */
p = strrchr(np->full_name, '/') + 1;
- ssi_private = kzalloc(sizeof(struct fsl_ssi_private) + strlen(p),
+ ssi_private = devm_kzalloc(&pdev->dev, sizeof(*ssi_private) + strlen(p),
GFP_KERNEL);
if (!ssi_private) {
dev_err(&pdev->dev, "could not allocate DAI object\n");
@@ -689,6 +710,9 @@ static int fsl_ssi_probe(struct platform_device *pdev)
strcpy(ssi_private->name, p);
+ ssi_private->use_dma = !of_property_read_bool(np,
+ "fsl,fiq-stream-filter");
+
/* Initialize this copy of the CPU DAI driver structure */
memcpy(&ssi_private->cpu_dai_drv, &fsl_ssi_dai_template,
sizeof(fsl_ssi_dai_template));
@@ -698,29 +722,31 @@ static int fsl_ssi_probe(struct platform_device *pdev)
ret = of_address_to_resource(np, 0, &res);
if (ret) {
dev_err(&pdev->dev, "could not determine device resources\n");
- goto error_kmalloc;
+ return ret;
}
ssi_private->ssi = of_iomap(np, 0);
if (!ssi_private->ssi) {
dev_err(&pdev->dev, "could not map device resources\n");
- ret = -ENOMEM;
- goto error_kmalloc;
+ return -ENOMEM;
}
ssi_private->ssi_phys = res.start;
ssi_private->irq = irq_of_parse_and_map(np, 0);
if (ssi_private->irq == NO_IRQ) {
dev_err(&pdev->dev, "no irq for node %s\n", np->full_name);
- ret = -ENXIO;
- goto error_iomap;
- }
-
- /* The 'name' should not have any slashes in it. */
- ret = request_irq(ssi_private->irq, fsl_ssi_isr, 0, ssi_private->name,
- ssi_private);
- if (ret < 0) {
- dev_err(&pdev->dev, "could not claim irq %u\n", ssi_private->irq);
- goto error_irqmap;
+ return -ENXIO;
+ }
+
+ if (ssi_private->use_dma) {
+ /* The 'name' should not have any slashes in it. */
+ ret = devm_request_irq(&pdev->dev, ssi_private->irq,
+ fsl_ssi_isr, 0, ssi_private->name,
+ ssi_private);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "could not claim irq %u\n",
+ ssi_private->irq);
+ goto error_irqmap;
+ }
}
/* Are the RX and the TX clocks locked? */
@@ -739,13 +765,18 @@ static int fsl_ssi_probe(struct platform_device *pdev)
u32 dma_events[2];
ssi_private->ssi_on_imx = true;
- ssi_private->clk = clk_get(&pdev->dev, NULL);
+ ssi_private->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(ssi_private->clk)) {
ret = PTR_ERR(ssi_private->clk);
dev_err(&pdev->dev, "could not get clock: %d\n", ret);
- goto error_irq;
+ goto error_irqmap;
+ }
+ ret = clk_prepare_enable(ssi_private->clk);
+ if (ret) {
+ dev_err(&pdev->dev, "clk_prepare_enable failed: %d\n",
+ ret);
+ goto error_irqmap;
}
- clk_prepare_enable(ssi_private->clk);
/*
* We have burstsize be "fifo_depth - 2" to match the SSI
@@ -763,24 +794,28 @@ static int fsl_ssi_probe(struct platform_device *pdev)
&ssi_private->filter_data_tx;
ssi_private->dma_params_rx.filter_data =
&ssi_private->filter_data_rx;
- /*
- * TODO: This is a temporary solution and should be changed
- * to use generic DMA binding later when the helplers get in.
- */
- ret = of_property_read_u32_array(pdev->dev.of_node,
+ if (!of_property_read_bool(pdev->dev.of_node, "dmas") &&
+ ssi_private->use_dma) {
+ /*
+ * FIXME: This is a temporary solution until all
+ * necessary dma drivers support the generic dma
+ * bindings.
+ */
+ ret = of_property_read_u32_array(pdev->dev.of_node,
"fsl,ssi-dma-events", dma_events, 2);
- if (ret) {
- dev_err(&pdev->dev, "could not get dma events\n");
- goto error_clk;
+ if (ret && ssi_private->use_dma) {
+ dev_err(&pdev->dev, "could not get dma events but fsl-ssi is configured to use DMA\n");
+ goto error_clk;
+ }
}
shared = of_device_is_compatible(of_get_parent(np),
"fsl,spba-bus");
imx_pcm_dma_params_init_data(&ssi_private->filter_data_tx,
- dma_events[0], shared);
+ dma_events[0], shared ? IMX_DMATYPE_SSI_SP : IMX_DMATYPE_SSI);
imx_pcm_dma_params_init_data(&ssi_private->filter_data_rx,
- dma_events[1], shared);
+ dma_events[1], shared ? IMX_DMATYPE_SSI_SP : IMX_DMATYPE_SSI);
}
/* Initialize the the device_attribute structure */
@@ -794,7 +829,7 @@ static int fsl_ssi_probe(struct platform_device *pdev)
if (ret) {
dev_err(&pdev->dev, "could not create sysfs %s file\n",
ssi_private->dev_attr.attr.name);
- goto error_irq;
+ goto error_clk;
}
/* Register with ASoC */
@@ -808,9 +843,30 @@ static int fsl_ssi_probe(struct platform_device *pdev)
}
if (ssi_private->ssi_on_imx) {
- ret = imx_pcm_dma_init(pdev);
- if (ret)
- goto error_dev;
+ if (!ssi_private->use_dma) {
+
+ /*
+ * Some boards use an incompatible codec. To get it
+ * working, we are using imx-fiq-pcm-audio, that
+ * can handle those codecs. DMA is not possible in this
+ * situation.
+ */
+
+ ssi_private->fiq_params.irq = ssi_private->irq;
+ ssi_private->fiq_params.base = ssi_private->ssi;
+ ssi_private->fiq_params.dma_params_rx =
+ &ssi_private->dma_params_rx;
+ ssi_private->fiq_params.dma_params_tx =
+ &ssi_private->dma_params_tx;
+
+ ret = imx_pcm_fiq_init(pdev, &ssi_private->fiq_params);
+ if (ret)
+ goto error_dev;
+ } else {
+ ret = imx_pcm_dma_init(pdev);
+ if (ret)
+ goto error_dev;
+ }
}
/*
@@ -857,23 +913,12 @@ error_dev:
device_remove_file(&pdev->dev, dev_attr);
error_clk:
- if (ssi_private->ssi_on_imx) {
+ if (ssi_private->ssi_on_imx)
clk_disable_unprepare(ssi_private->clk);
- clk_put(ssi_private->clk);
- }
-
-error_irq:
- free_irq(ssi_private->irq, ssi_private);
error_irqmap:
irq_dispose_mapping(ssi_private->irq);
-error_iomap:
- iounmap(ssi_private->ssi);
-
-error_kmalloc:
- kfree(ssi_private);
-
return ret;
}
@@ -883,20 +928,15 @@ static int fsl_ssi_remove(struct platform_device *pdev)
if (!ssi_private->new_binding)
platform_device_unregister(ssi_private->pdev);
- if (ssi_private->ssi_on_imx) {
+ if (ssi_private->ssi_on_imx)
imx_pcm_dma_exit(pdev);
- clk_disable_unprepare(ssi_private->clk);
- clk_put(ssi_private->clk);
- }
snd_soc_unregister_component(&pdev->dev);
+ dev_set_drvdata(&pdev->dev, NULL);
device_remove_file(&pdev->dev, &ssi_private->dev_attr);
-
- free_irq(ssi_private->irq, ssi_private);
+ if (ssi_private->ssi_on_imx)
+ clk_disable_unprepare(ssi_private->clk);
irq_dispose_mapping(ssi_private->irq);
- kfree(ssi_private);
- dev_set_drvdata(&pdev->dev, NULL);
-
return 0;
}
@@ -919,6 +959,7 @@ static struct platform_driver fsl_ssi_driver = {
module_platform_driver(fsl_ssi_driver);
+MODULE_ALIAS("platform:fsl-ssi-dai");
MODULE_AUTHOR("Timur Tabi <timur@freescale.com>");
MODULE_DESCRIPTION("Freescale Synchronous Serial Interface (SSI) ASoC Driver");
MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/fsl/imx-audmux.c b/sound/soc/fsl/imx-audmux.c
index e260f1f899db..ab17381cc981 100644
--- a/sound/soc/fsl/imx-audmux.c
+++ b/sound/soc/fsl/imx-audmux.c
@@ -73,8 +73,11 @@ static ssize_t audmux_read_file(struct file *file, char __user *user_buf,
if (!buf)
return -ENOMEM;
- if (audmux_clk)
- clk_prepare_enable(audmux_clk);
+ if (audmux_clk) {
+ ret = clk_prepare_enable(audmux_clk);
+ if (ret)
+ return ret;
+ }
ptcr = readl(audmux_base + IMX_AUDMUX_V2_PTCR(port));
pdcr = readl(audmux_base + IMX_AUDMUX_V2_PDCR(port));
@@ -224,14 +227,19 @@ EXPORT_SYMBOL_GPL(imx_audmux_v1_configure_port);
int imx_audmux_v2_configure_port(unsigned int port, unsigned int ptcr,
unsigned int pdcr)
{
+ int ret;
+
if (audmux_type != IMX31_AUDMUX)
return -EINVAL;
if (!audmux_base)
return -ENOSYS;
- if (audmux_clk)
- clk_prepare_enable(audmux_clk);
+ if (audmux_clk) {
+ ret = clk_prepare_enable(audmux_clk);
+ if (ret)
+ return ret;
+ }
writel(ptcr, audmux_base + IMX_AUDMUX_V2_PTCR(port));
writel(pdcr, audmux_base + IMX_AUDMUX_V2_PDCR(port));
@@ -243,6 +251,66 @@ int imx_audmux_v2_configure_port(unsigned int port, unsigned int ptcr,
}
EXPORT_SYMBOL_GPL(imx_audmux_v2_configure_port);
+static int imx_audmux_parse_dt_defaults(struct platform_device *pdev,
+ struct device_node *of_node)
+{
+ struct device_node *child;
+
+ for_each_available_child_of_node(of_node, child) {
+ unsigned int port;
+ unsigned int ptcr = 0;
+ unsigned int pdcr = 0;
+ unsigned int pcr = 0;
+ unsigned int val;
+ int ret;
+ int i = 0;
+
+ ret = of_property_read_u32(child, "fsl,audmux-port", &port);
+ if (ret) {
+ dev_warn(&pdev->dev, "Failed to get fsl,audmux-port of child node \"%s\"\n",
+ child->full_name);
+ continue;
+ }
+ if (!of_property_read_bool(child, "fsl,port-config")) {
+ dev_warn(&pdev->dev, "child node \"%s\" does not have property fsl,port-config\n",
+ child->full_name);
+ continue;
+ }
+
+ for (i = 0; (ret = of_property_read_u32_index(child,
+ "fsl,port-config", i, &val)) == 0;
+ ++i) {
+ if (audmux_type == IMX31_AUDMUX) {
+ if (i % 2)
+ pdcr |= val;
+ else
+ ptcr |= val;
+ } else {
+ pcr |= val;
+ }
+ }
+
+ if (ret != -EOVERFLOW) {
+ dev_err(&pdev->dev, "Failed to read u32 at index %d of child %s\n",
+ i, child->full_name);
+ continue;
+ }
+
+ if (audmux_type == IMX31_AUDMUX) {
+ if (i % 2) {
+ dev_err(&pdev->dev, "One pdcr value is missing in child node %s\n",
+ child->full_name);
+ continue;
+ }
+ imx_audmux_v2_configure_port(port, ptcr, pdcr);
+ } else {
+ imx_audmux_v1_configure_port(port, pcr);
+ }
+ }
+
+ return 0;
+}
+
static int imx_audmux_probe(struct platform_device *pdev)
{
struct resource *res;
@@ -267,6 +335,8 @@ static int imx_audmux_probe(struct platform_device *pdev)
if (audmux_type == IMX31_AUDMUX)
audmux_debugfs_init();
+ imx_audmux_parse_dt_defaults(pdev, pdev->dev.of_node);
+
return 0;
}
diff --git a/sound/soc/fsl/imx-audmux.h b/sound/soc/fsl/imx-audmux.h
index b8ff44b9dafa..38a4209af7c6 100644
--- a/sound/soc/fsl/imx-audmux.h
+++ b/sound/soc/fsl/imx-audmux.h
@@ -1,57 +1,7 @@
#ifndef __IMX_AUDMUX_H
#define __IMX_AUDMUX_H
-#define MX27_AUDMUX_HPCR1_SSI0 0
-#define MX27_AUDMUX_HPCR2_SSI1 1
-#define MX27_AUDMUX_HPCR3_SSI_PINS_4 2
-#define MX27_AUDMUX_PPCR1_SSI_PINS_1 3
-#define MX27_AUDMUX_PPCR2_SSI_PINS_2 4
-#define MX27_AUDMUX_PPCR3_SSI_PINS_3 5
-
-#define MX31_AUDMUX_PORT1_SSI0 0
-#define MX31_AUDMUX_PORT2_SSI1 1
-#define MX31_AUDMUX_PORT3_SSI_PINS_3 2
-#define MX31_AUDMUX_PORT4_SSI_PINS_4 3
-#define MX31_AUDMUX_PORT5_SSI_PINS_5 4
-#define MX31_AUDMUX_PORT6_SSI_PINS_6 5
-#define MX31_AUDMUX_PORT7_SSI_PINS_7 6
-
-#define MX51_AUDMUX_PORT1_SSI0 0
-#define MX51_AUDMUX_PORT2_SSI1 1
-#define MX51_AUDMUX_PORT3 2
-#define MX51_AUDMUX_PORT4 3
-#define MX51_AUDMUX_PORT5 4
-#define MX51_AUDMUX_PORT6 5
-#define MX51_AUDMUX_PORT7 6
-
-/* Register definitions for the i.MX21/27 Digital Audio Multiplexer */
-#define IMX_AUDMUX_V1_PCR_INMMASK(x) ((x) & 0xff)
-#define IMX_AUDMUX_V1_PCR_INMEN (1 << 8)
-#define IMX_AUDMUX_V1_PCR_TXRXEN (1 << 10)
-#define IMX_AUDMUX_V1_PCR_SYN (1 << 12)
-#define IMX_AUDMUX_V1_PCR_RXDSEL(x) (((x) & 0x7) << 13)
-#define IMX_AUDMUX_V1_PCR_RFCSEL(x) (((x) & 0xf) << 20)
-#define IMX_AUDMUX_V1_PCR_RCLKDIR (1 << 24)
-#define IMX_AUDMUX_V1_PCR_RFSDIR (1 << 25)
-#define IMX_AUDMUX_V1_PCR_TFCSEL(x) (((x) & 0xf) << 26)
-#define IMX_AUDMUX_V1_PCR_TCLKDIR (1 << 30)
-#define IMX_AUDMUX_V1_PCR_TFSDIR (1 << 31)
-
-/* Register definitions for the i.MX25/31/35/51 Digital Audio Multiplexer */
-#define IMX_AUDMUX_V2_PTCR_TFSDIR (1 << 31)
-#define IMX_AUDMUX_V2_PTCR_TFSEL(x) (((x) & 0xf) << 27)
-#define IMX_AUDMUX_V2_PTCR_TCLKDIR (1 << 26)
-#define IMX_AUDMUX_V2_PTCR_TCSEL(x) (((x) & 0xf) << 22)
-#define IMX_AUDMUX_V2_PTCR_RFSDIR (1 << 21)
-#define IMX_AUDMUX_V2_PTCR_RFSEL(x) (((x) & 0xf) << 17)
-#define IMX_AUDMUX_V2_PTCR_RCLKDIR (1 << 16)
-#define IMX_AUDMUX_V2_PTCR_RCSEL(x) (((x) & 0xf) << 12)
-#define IMX_AUDMUX_V2_PTCR_SYN (1 << 11)
-
-#define IMX_AUDMUX_V2_PDCR_RXDSEL(x) (((x) & 0x7) << 13)
-#define IMX_AUDMUX_V2_PDCR_TXRXEN (1 << 12)
-#define IMX_AUDMUX_V2_PDCR_MODE(x) (((x) & 0x3) << 8)
-#define IMX_AUDMUX_V2_PDCR_INMMASK(x) ((x) & 0xff)
+#include <dt-bindings/sound/fsl-imx-audmux.h>
int imx_audmux_v1_configure_port(unsigned int port, unsigned int pcr);
diff --git a/sound/soc/fsl/imx-mc13783.c b/sound/soc/fsl/imx-mc13783.c
index 9df173c091a6..a3d60d4bea4c 100644
--- a/sound/soc/fsl/imx-mc13783.c
+++ b/sound/soc/fsl/imx-mc13783.c
@@ -90,6 +90,7 @@ static const struct snd_soc_dapm_route imx_mc13783_routes[] = {
static struct snd_soc_card imx_mc13783 = {
.name = "imx_mc13783",
+ .owner = THIS_MODULE,
.dai_link = imx_mc13783_dai_mc13783,
.num_links = ARRAY_SIZE(imx_mc13783_dai_mc13783),
.dapm_widgets = imx_mc13783_widget,
diff --git a/sound/soc/fsl/imx-pcm-dma.c b/sound/soc/fsl/imx-pcm-dma.c
index fde4d2ea68c8..4dc1296688e9 100644
--- a/sound/soc/fsl/imx-pcm-dma.c
+++ b/sound/soc/fsl/imx-pcm-dma.c
@@ -14,6 +14,7 @@
#include <linux/platform_device.h>
#include <linux/dmaengine.h>
#include <linux/types.h>
+#include <linux/module.h>
#include <sound/core.h>
#include <sound/pcm.h>
@@ -64,7 +65,6 @@ int imx_pcm_dma_init(struct platform_device *pdev)
{
return snd_dmaengine_pcm_register(&pdev->dev, &imx_dmaengine_pcm_config,
SND_DMAENGINE_PCM_FLAG_NO_RESIDUE |
- SND_DMAENGINE_PCM_FLAG_NO_DT |
SND_DMAENGINE_PCM_FLAG_COMPAT);
}
EXPORT_SYMBOL_GPL(imx_pcm_dma_init);
@@ -74,3 +74,5 @@ void imx_pcm_dma_exit(struct platform_device *pdev)
snd_dmaengine_pcm_unregister(&pdev->dev);
}
EXPORT_SYMBOL_GPL(imx_pcm_dma_exit);
+
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/fsl/imx-pcm-fiq.c b/sound/soc/fsl/imx-pcm-fiq.c
index 310d90290320..34043c55f2a6 100644
--- a/sound/soc/fsl/imx-pcm-fiq.c
+++ b/sound/soc/fsl/imx-pcm-fiq.c
@@ -22,6 +22,7 @@
#include <linux/slab.h>
#include <sound/core.h>
+#include <sound/dmaengine_pcm.h>
#include <sound/initval.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
@@ -32,6 +33,7 @@
#include <linux/platform_data/asoc-imx-ssi.h>
#include "imx-ssi.h"
+#include "imx-pcm.h"
struct imx_pcm_runtime_data {
unsigned int period;
@@ -366,9 +368,9 @@ static struct snd_soc_platform_driver imx_soc_platform_fiq = {
.pcm_free = imx_pcm_fiq_free,
};
-int imx_pcm_fiq_init(struct platform_device *pdev)
+int imx_pcm_fiq_init(struct platform_device *pdev,
+ struct imx_pcm_fiq_params *params)
{
- struct imx_ssi *ssi = platform_get_drvdata(pdev);
int ret;
ret = claim_fiq(&fh);
@@ -377,15 +379,15 @@ int imx_pcm_fiq_init(struct platform_device *pdev)
return ret;
}
- mxc_set_irq_fiq(ssi->irq, 1);
- ssi_irq = ssi->irq;
+ mxc_set_irq_fiq(params->irq, 1);
+ ssi_irq = params->irq;
- imx_pcm_fiq = ssi->irq;
+ imx_pcm_fiq = params->irq;
- imx_ssi_fiq_base = (unsigned long)ssi->base;
+ imx_ssi_fiq_base = (unsigned long)params->base;
- ssi->dma_params_tx.maxburst = 4;
- ssi->dma_params_rx.maxburst = 6;
+ params->dma_params_tx->maxburst = 4;
+ params->dma_params_rx->maxburst = 6;
ret = snd_soc_register_platform(&pdev->dev, &imx_soc_platform_fiq);
if (ret)
@@ -406,3 +408,5 @@ void imx_pcm_fiq_exit(struct platform_device *pdev)
snd_soc_unregister_platform(&pdev->dev);
}
EXPORT_SYMBOL_GPL(imx_pcm_fiq_exit);
+
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/fsl/imx-pcm.h b/sound/soc/fsl/imx-pcm.h
index 67f656c7c320..5d5b73303e11 100644
--- a/sound/soc/fsl/imx-pcm.h
+++ b/sound/soc/fsl/imx-pcm.h
@@ -22,17 +22,23 @@
static inline void
imx_pcm_dma_params_init_data(struct imx_dma_data *dma_data,
- int dma, bool shared)
+ int dma, enum sdma_peripheral_type peripheral_type)
{
dma_data->dma_request = dma;
dma_data->priority = DMA_PRIO_HIGH;
- if (shared)
- dma_data->peripheral_type = IMX_DMATYPE_SSI_SP;
- else
- dma_data->peripheral_type = IMX_DMATYPE_SSI;
+ dma_data->peripheral_type = peripheral_type;
}
-#ifdef CONFIG_SND_SOC_IMX_PCM_DMA
+struct imx_pcm_fiq_params {
+ int irq;
+ void __iomem *base;
+
+ /* Pointer to original ssi driver to setup tx rx sizes */
+ struct snd_dmaengine_dai_dma_data *dma_params_rx;
+ struct snd_dmaengine_dai_dma_data *dma_params_tx;
+};
+
+#if IS_ENABLED(CONFIG_SND_SOC_IMX_PCM_DMA)
int imx_pcm_dma_init(struct platform_device *pdev);
void imx_pcm_dma_exit(struct platform_device *pdev);
#else
@@ -46,11 +52,13 @@ static inline void imx_pcm_dma_exit(struct platform_device *pdev)
}
#endif
-#ifdef CONFIG_SND_SOC_IMX_PCM_FIQ
-int imx_pcm_fiq_init(struct platform_device *pdev);
+#if IS_ENABLED(CONFIG_SND_SOC_IMX_PCM_FIQ)
+int imx_pcm_fiq_init(struct platform_device *pdev,
+ struct imx_pcm_fiq_params *params);
void imx_pcm_fiq_exit(struct platform_device *pdev);
#else
-static inline int imx_pcm_fiq_init(struct platform_device *pdev)
+static inline int imx_pcm_fiq_init(struct platform_device *pdev,
+ struct imx_pcm_fiq_params *params)
{
return -ENODEV;
}
diff --git a/sound/soc/fsl/imx-sgtl5000.c b/sound/soc/fsl/imx-sgtl5000.c
index 3f726e4f88db..389cbfa6dca7 100644
--- a/sound/soc/fsl/imx-sgtl5000.c
+++ b/sound/soc/fsl/imx-sgtl5000.c
@@ -129,8 +129,10 @@ static int imx_sgtl5000_probe(struct platform_device *pdev)
}
data->codec_clk = devm_clk_get(&codec_dev->dev, NULL);
- if (IS_ERR(data->codec_clk))
+ if (IS_ERR(data->codec_clk)) {
+ ret = PTR_ERR(data->codec_clk);
goto fail;
+ }
data->clk_frequency = clk_get_rate(data->codec_clk);
diff --git a/sound/soc/fsl/imx-ssi.c b/sound/soc/fsl/imx-ssi.c
index 51be3772cba9..f58bcd85c07f 100644
--- a/sound/soc/fsl/imx-ssi.c
+++ b/sound/soc/fsl/imx-ssi.c
@@ -571,13 +571,13 @@ static int imx_ssi_probe(struct platform_device *pdev)
res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "tx0");
if (res) {
imx_pcm_dma_params_init_data(&ssi->filter_data_tx, res->start,
- false);
+ IMX_DMATYPE_SSI);
}
res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "rx0");
if (res) {
imx_pcm_dma_params_init_data(&ssi->filter_data_rx, res->start,
- false);
+ IMX_DMATYPE_SSI);
}
platform_set_drvdata(pdev, ssi);
@@ -595,7 +595,12 @@ static int imx_ssi_probe(struct platform_device *pdev)
goto failed_register;
}
- ret = imx_pcm_fiq_init(pdev);
+ ssi->fiq_params.irq = ssi->irq;
+ ssi->fiq_params.base = ssi->base;
+ ssi->fiq_params.dma_params_rx = &ssi->dma_params_rx;
+ ssi->fiq_params.dma_params_tx = &ssi->dma_params_tx;
+
+ ret = imx_pcm_fiq_init(pdev, &ssi->fiq_params);
if (ret)
goto failed_pcm_fiq;
diff --git a/sound/soc/fsl/imx-ssi.h b/sound/soc/fsl/imx-ssi.h
index d5003cefca8d..fb1616ba8c59 100644
--- a/sound/soc/fsl/imx-ssi.h
+++ b/sound/soc/fsl/imx-ssi.h
@@ -209,6 +209,7 @@ struct imx_ssi {
struct snd_dmaengine_dai_dma_data dma_params_tx;
struct imx_dma_data filter_data_tx;
struct imx_dma_data filter_data_rx;
+ struct imx_pcm_fiq_params fiq_params;
int enabled;
};
diff --git a/sound/soc/fsl/imx-wm8962.c b/sound/soc/fsl/imx-wm8962.c
index 52a36a90f4f4..1d70e278e915 100644
--- a/sound/soc/fsl/imx-wm8962.c
+++ b/sound/soc/fsl/imx-wm8962.c
@@ -217,7 +217,8 @@ static int imx_wm8962_probe(struct platform_device *pdev)
codec_dev = of_find_i2c_device_by_node(codec_np);
if (!codec_dev || !codec_dev->driver) {
dev_err(&pdev->dev, "failed to find codec platform device\n");
- return -EINVAL;
+ ret = -EINVAL;
+ goto fail;
}
data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-07-13 20:58:55 +0200