omapdss: HDMI: create a PHY library

HDMI PHY is a block common to DSS in OMAP4, OMAP5 and DRA7x. Move the
existing functions from ti_hdmi_4xxx_ip.c to a separate file. These funcs are
called directly from the hdmi driver rather than hdmi_ip_ops function pointer
calls.

Add the PHY library function declarations to ti_hdmi.h. These will be shared
amongst the omap4/5 hdmi platform drivers. Remove the PHY function pointer ops
from the ti_hdmi_ip_ops struct.

The DT/hwmod information for hdmi doesn't split the address space according to
the required sub blocks. Keep the address offset and size information in the
driver for now. This will be removed when the driver gets the information
correctly from DT/hwmod.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

1 files changed, 0 insertions, 109 deletions

diff --git a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
index 8cfb54b39688..c705aa113aac 100644
--- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
+++ b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
@@ -37,9 +37,6 @@
 #include "dss.h"
 #include "dss_features.h"
 
-#define HDMI_IRQ_LINK_CONNECT		(1 << 25)
-#define HDMI_IRQ_LINK_DISCONNECT	(1 << 26)
-
 static inline void hdmi_write_reg(void __iomem *base_addr,
 				const u16 idx, u32 val)
 {
@@ -70,11 +67,6 @@ static inline int hdmi_wait_for_bit_change(void __iomem *base_addr,
 	return val;
 }
 
-static inline void __iomem *hdmi_phy_base(struct hdmi_ip_data *ip_data)
-{
-	return ip_data->wp.base + ip_data->phy_offset;
-}
-
 static inline void __iomem *hdmi_av_base(struct hdmi_ip_data *ip_data)
 {
 	return ip_data->wp.base + ip_data->core_av_offset;
@@ -85,94 +77,6 @@ static inline void __iomem *hdmi_core_sys_base(struct hdmi_ip_data *ip_data)
 	return ip_data->wp.base + ip_data->core_sys_offset;
 }
 
-static irqreturn_t hdmi_irq_handler(int irq, void *data)
-{
-	struct hdmi_ip_data *ip_data = data;
-	u32 irqstatus;
-
-	irqstatus = hdmi_wp_get_irqstatus(&ip_data->wp);
-	hdmi_wp_set_irqstatus(&ip_data->wp, irqstatus);
-
-	if ((irqstatus & HDMI_IRQ_LINK_CONNECT) &&
-			irqstatus & HDMI_IRQ_LINK_DISCONNECT) {
-		/*
-		 * If we get both connect and disconnect interrupts at the same
-		 * time, turn off the PHY, clear interrupts, and restart, which
-		 * raises connect interrupt if a cable is connected, or nothing
-		 * if cable is not connected.
-		 */
-		hdmi_wp_set_phy_pwr(&ip_data->wp, HDMI_PHYPWRCMD_OFF);
-
-		hdmi_wp_set_irqstatus(&ip_data->wp, HDMI_IRQ_LINK_CONNECT |
-				HDMI_IRQ_LINK_DISCONNECT);
-
-		hdmi_wp_set_phy_pwr(&ip_data->wp, HDMI_PHYPWRCMD_LDOON);
-	} else if (irqstatus & HDMI_IRQ_LINK_CONNECT) {
-		hdmi_wp_set_phy_pwr(&ip_data->wp, HDMI_PHYPWRCMD_TXON);
-	} else if (irqstatus & HDMI_IRQ_LINK_DISCONNECT) {
-		hdmi_wp_set_phy_pwr(&ip_data->wp, HDMI_PHYPWRCMD_LDOON);
-	}
-
-	return IRQ_HANDLED;
-}
-
-int ti_hdmi_4xxx_phy_enable(struct hdmi_ip_data *ip_data)
-{
-	u16 r = 0;
-	u32 irqstatus;
-	void __iomem *phy_base = hdmi_phy_base(ip_data);
-
-	hdmi_wp_clear_irqenable(&ip_data->wp, 0xffffffff);
-
-	irqstatus = hdmi_wp_get_irqstatus(&ip_data->wp);
-	hdmi_wp_set_irqstatus(&ip_data->wp, irqstatus);
-
-	r = hdmi_wp_set_phy_pwr(&ip_data->wp, HDMI_PHYPWRCMD_LDOON);
-	if (r)
-		return r;
-
-	/*
-	 * Read address 0 in order to get the SCP reset done completed
-	 * Dummy access performed to make sure reset is done
-	 */
-	hdmi_read_reg(phy_base, HDMI_TXPHY_TX_CTRL);
-
-	/*
-	 * Write to phy address 0 to configure the clock
-	 * use HFBITCLK write HDMI_TXPHY_TX_CONTROL_FREQOUT field
-	 */
-	REG_FLD_MOD(phy_base, HDMI_TXPHY_TX_CTRL, 0x1, 31, 30);
-
-	/* Write to phy address 1 to start HDMI line (TXVALID and TMDSCLKEN) */
-	hdmi_write_reg(phy_base, HDMI_TXPHY_DIGITAL_CTRL, 0xF0000000);
-
-	/* Setup max LDO voltage */
-	REG_FLD_MOD(phy_base, HDMI_TXPHY_POWER_CTRL, 0xB, 3, 0);
-
-	/* Write to phy address 3 to change the polarity control */
-	REG_FLD_MOD(phy_base, HDMI_TXPHY_PAD_CFG_CTRL, 0x1, 27, 27);
-
-	r = request_threaded_irq(ip_data->irq, NULL, hdmi_irq_handler,
-				 IRQF_ONESHOT, "OMAP HDMI", ip_data);
-	if (r) {
-		DSSERR("HDMI IRQ request failed\n");
-		hdmi_wp_set_phy_pwr(&ip_data->wp, HDMI_PHYPWRCMD_OFF);
-		return r;
-	}
-
-	hdmi_wp_set_irqenable(&ip_data->wp,
-		HDMI_IRQ_LINK_CONNECT | HDMI_IRQ_LINK_DISCONNECT);
-
-	return 0;
-}
-
-void ti_hdmi_4xxx_phy_disable(struct hdmi_ip_data *ip_data)
-{
-	free_irq(ip_data->irq, ip_data);
-
-	hdmi_wp_set_phy_pwr(&ip_data->wp, HDMI_PHYPWRCMD_OFF);
-}
-
 static int hdmi_core_ddc_init(struct hdmi_ip_data *ip_data)
 {
 	void __iomem *base = hdmi_core_sys_base(ip_data);
@@ -524,8 +428,6 @@ static void hdmi_core_av_packet_config(struct hdmi_ip_data *ip_data,
 		(repeat_cfg.generic_pkt_repeat));
 }
 
-
-
 void ti_hdmi_4xxx_basic_configure(struct hdmi_ip_data *ip_data)
 {
 	/* HDMI */
@@ -769,17 +671,6 @@ void ti_hdmi_4xxx_core_dump(struct hdmi_ip_data *ip_data, struct seq_file *s)
 	DUMPCOREAV(HDMI_CORE_AV_CEC_ADDR_ID);
 }
 
-void ti_hdmi_4xxx_phy_dump(struct hdmi_ip_data *ip_data, struct seq_file *s)
-{
-#define DUMPPHY(r) seq_printf(s, "%-35s %08x\n", #r,\
-		hdmi_read_reg(hdmi_phy_base(ip_data), r))
-
-	DUMPPHY(HDMI_TXPHY_TX_CTRL);
-	DUMPPHY(HDMI_TXPHY_DIGITAL_CTRL);
-	DUMPPHY(HDMI_TXPHY_POWER_CTRL);
-	DUMPPHY(HDMI_TXPHY_PAD_CFG_CTRL);
-}
-
 #if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
 static void ti_hdmi_4xxx_core_audio_config(struct hdmi_ip_data *ip_data,
 					struct hdmi_core_audio_config *cfg)