OMAPDSS: HDMI: Add support to dump registers through debugfs

Add support to dump the HDMI wrapper, core, PLL and PHY registers
through debugfs.

Signed-off-by: Mythri P K <mythripk@ti.com>
[tomi.valkeinen@ti.com: updated the description]
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

1 files changed, 173 insertions, 0 deletions

diff --git a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
index 5f22d2e5979e..e1a6ce518af6 100644
--- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
+++ b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
@@ -27,6 +27,7 @@
 #include <linux/mutex.h>
 #include <linux/delay.h>
 #include <linux/string.h>
+#include <linux/seq_file.h>
 
 #include "ti_hdmi_4xxx_ip.h"
 #include "dss.h"
@@ -805,6 +806,178 @@ void ti_hdmi_4xxx_basic_configure(struct hdmi_ip_data *ip_data)
 	hdmi_core_av_packet_config(ip_data, repeat_cfg);
 }
 
+void ti_hdmi_4xxx_wp_dump(struct hdmi_ip_data *ip_data, struct seq_file *s)
+{
+#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r,\
+		hdmi_read_reg(hdmi_wp_base(ip_data), r))
+
+	DUMPREG(HDMI_WP_REVISION);
+	DUMPREG(HDMI_WP_SYSCONFIG);
+	DUMPREG(HDMI_WP_IRQSTATUS_RAW);
+	DUMPREG(HDMI_WP_IRQSTATUS);
+	DUMPREG(HDMI_WP_PWR_CTRL);
+	DUMPREG(HDMI_WP_IRQENABLE_SET);
+	DUMPREG(HDMI_WP_VIDEO_CFG);
+	DUMPREG(HDMI_WP_VIDEO_SIZE);
+	DUMPREG(HDMI_WP_VIDEO_TIMING_H);
+	DUMPREG(HDMI_WP_VIDEO_TIMING_V);
+	DUMPREG(HDMI_WP_WP_CLK);
+	DUMPREG(HDMI_WP_AUDIO_CFG);
+	DUMPREG(HDMI_WP_AUDIO_CFG2);
+	DUMPREG(HDMI_WP_AUDIO_CTRL);
+	DUMPREG(HDMI_WP_AUDIO_DATA);
+}
+
+void ti_hdmi_4xxx_pll_dump(struct hdmi_ip_data *ip_data, struct seq_file *s)
+{
+#define DUMPPLL(r) seq_printf(s, "%-35s %08x\n", #r,\
+		hdmi_read_reg(hdmi_pll_base(ip_data), r))
+
+	DUMPPLL(PLLCTRL_PLL_CONTROL);
+	DUMPPLL(PLLCTRL_PLL_STATUS);
+	DUMPPLL(PLLCTRL_PLL_GO);
+	DUMPPLL(PLLCTRL_CFG1);
+	DUMPPLL(PLLCTRL_CFG2);
+	DUMPPLL(PLLCTRL_CFG3);
+	DUMPPLL(PLLCTRL_CFG4);
+}
+
+void ti_hdmi_4xxx_core_dump(struct hdmi_ip_data *ip_data, struct seq_file *s)
+{
+	int i;
+
+#define CORE_REG(i, name) name(i)
+#define DUMPCORE(r) seq_printf(s, "%-35s %08x\n", #r,\
+		hdmi_read_reg(hdmi_pll_base(ip_data), r))
+#define DUMPCOREAV(i, r) seq_printf(s, "%s[%d]%*s %08x\n", #r, i, \
+		(i < 10) ? 32 - strlen(#r) : 31 - strlen(#r), " ", \
+		hdmi_read_reg(hdmi_pll_base(ip_data), CORE_REG(i, r)))
+
+	DUMPCORE(HDMI_CORE_SYS_VND_IDL);
+	DUMPCORE(HDMI_CORE_SYS_DEV_IDL);
+	DUMPCORE(HDMI_CORE_SYS_DEV_IDH);
+	DUMPCORE(HDMI_CORE_SYS_DEV_REV);
+	DUMPCORE(HDMI_CORE_SYS_SRST);
+	DUMPCORE(HDMI_CORE_CTRL1);
+	DUMPCORE(HDMI_CORE_SYS_SYS_STAT);
+	DUMPCORE(HDMI_CORE_SYS_VID_ACEN);
+	DUMPCORE(HDMI_CORE_SYS_VID_MODE);
+	DUMPCORE(HDMI_CORE_SYS_INTR_STATE);
+	DUMPCORE(HDMI_CORE_SYS_INTR1);
+	DUMPCORE(HDMI_CORE_SYS_INTR2);
+	DUMPCORE(HDMI_CORE_SYS_INTR3);
+	DUMPCORE(HDMI_CORE_SYS_INTR4);
+	DUMPCORE(HDMI_CORE_SYS_UMASK1);
+	DUMPCORE(HDMI_CORE_SYS_TMDS_CTRL);
+	DUMPCORE(HDMI_CORE_SYS_DE_DLY);
+	DUMPCORE(HDMI_CORE_SYS_DE_CTRL);
+	DUMPCORE(HDMI_CORE_SYS_DE_TOP);
+	DUMPCORE(HDMI_CORE_SYS_DE_CNTL);
+	DUMPCORE(HDMI_CORE_SYS_DE_CNTH);
+	DUMPCORE(HDMI_CORE_SYS_DE_LINL);
+	DUMPCORE(HDMI_CORE_SYS_DE_LINH_1);
+
+	DUMPCORE(HDMI_CORE_DDC_CMD);
+	DUMPCORE(HDMI_CORE_DDC_STATUS);
+	DUMPCORE(HDMI_CORE_DDC_ADDR);
+	DUMPCORE(HDMI_CORE_DDC_OFFSET);
+	DUMPCORE(HDMI_CORE_DDC_COUNT1);
+	DUMPCORE(HDMI_CORE_DDC_COUNT2);
+	DUMPCORE(HDMI_CORE_DDC_DATA);
+	DUMPCORE(HDMI_CORE_DDC_SEGM);
+
+	DUMPCORE(HDMI_CORE_AV_HDMI_CTRL);
+	DUMPCORE(HDMI_CORE_AV_DPD);
+	DUMPCORE(HDMI_CORE_AV_PB_CTRL1);
+	DUMPCORE(HDMI_CORE_AV_PB_CTRL2);
+	DUMPCORE(HDMI_CORE_AV_AVI_TYPE);
+	DUMPCORE(HDMI_CORE_AV_AVI_VERS);
+	DUMPCORE(HDMI_CORE_AV_AVI_LEN);
+	DUMPCORE(HDMI_CORE_AV_AVI_CHSUM);
+
+	for (i = 0; i < HDMI_CORE_AV_AVI_DBYTE_NELEMS; i++)
+		DUMPCOREAV(i, HDMI_CORE_AV_AVI_DBYTE);
+
+	for (i = 0; i < HDMI_CORE_AV_SPD_DBYTE_NELEMS; i++)
+		DUMPCOREAV(i, HDMI_CORE_AV_SPD_DBYTE);
+
+	for (i = 0; i < HDMI_CORE_AV_AUD_DBYTE_NELEMS; i++)
+		DUMPCOREAV(i, HDMI_CORE_AV_AUD_DBYTE);
+
+	for (i = 0; i < HDMI_CORE_AV_MPEG_DBYTE_NELEMS; i++)
+		DUMPCOREAV(i, HDMI_CORE_AV_MPEG_DBYTE);
+
+	for (i = 0; i < HDMI_CORE_AV_GEN_DBYTE_NELEMS; i++)
+		DUMPCOREAV(i, HDMI_CORE_AV_GEN_DBYTE);
+
+	for (i = 0; i < HDMI_CORE_AV_GEN2_DBYTE_NELEMS; i++)
+		DUMPCOREAV(i, HDMI_CORE_AV_GEN2_DBYTE);
+
+	DUMPCORE(HDMI_CORE_AV_ACR_CTRL);
+	DUMPCORE(HDMI_CORE_AV_FREQ_SVAL);
+	DUMPCORE(HDMI_CORE_AV_N_SVAL1);
+	DUMPCORE(HDMI_CORE_AV_N_SVAL2);
+	DUMPCORE(HDMI_CORE_AV_N_SVAL3);
+	DUMPCORE(HDMI_CORE_AV_CTS_SVAL1);
+	DUMPCORE(HDMI_CORE_AV_CTS_SVAL2);
+	DUMPCORE(HDMI_CORE_AV_CTS_SVAL3);
+	DUMPCORE(HDMI_CORE_AV_CTS_HVAL1);
+	DUMPCORE(HDMI_CORE_AV_CTS_HVAL2);
+	DUMPCORE(HDMI_CORE_AV_CTS_HVAL3);
+	DUMPCORE(HDMI_CORE_AV_AUD_MODE);
+	DUMPCORE(HDMI_CORE_AV_SPDIF_CTRL);
+	DUMPCORE(HDMI_CORE_AV_HW_SPDIF_FS);
+	DUMPCORE(HDMI_CORE_AV_SWAP_I2S);
+	DUMPCORE(HDMI_CORE_AV_SPDIF_ERTH);
+	DUMPCORE(HDMI_CORE_AV_I2S_IN_MAP);
+	DUMPCORE(HDMI_CORE_AV_I2S_IN_CTRL);
+	DUMPCORE(HDMI_CORE_AV_I2S_CHST0);
+	DUMPCORE(HDMI_CORE_AV_I2S_CHST1);
+	DUMPCORE(HDMI_CORE_AV_I2S_CHST2);
+	DUMPCORE(HDMI_CORE_AV_I2S_CHST4);
+	DUMPCORE(HDMI_CORE_AV_I2S_CHST5);
+	DUMPCORE(HDMI_CORE_AV_ASRC);
+	DUMPCORE(HDMI_CORE_AV_I2S_IN_LEN);
+	DUMPCORE(HDMI_CORE_AV_HDMI_CTRL);
+	DUMPCORE(HDMI_CORE_AV_AUDO_TXSTAT);
+	DUMPCORE(HDMI_CORE_AV_AUD_PAR_BUSCLK_1);
+	DUMPCORE(HDMI_CORE_AV_AUD_PAR_BUSCLK_2);
+	DUMPCORE(HDMI_CORE_AV_AUD_PAR_BUSCLK_3);
+	DUMPCORE(HDMI_CORE_AV_TEST_TXCTRL);
+	DUMPCORE(HDMI_CORE_AV_DPD);
+	DUMPCORE(HDMI_CORE_AV_PB_CTRL1);
+	DUMPCORE(HDMI_CORE_AV_PB_CTRL2);
+	DUMPCORE(HDMI_CORE_AV_AVI_TYPE);
+	DUMPCORE(HDMI_CORE_AV_AVI_VERS);
+	DUMPCORE(HDMI_CORE_AV_AVI_LEN);
+	DUMPCORE(HDMI_CORE_AV_AVI_CHSUM);
+	DUMPCORE(HDMI_CORE_AV_SPD_TYPE);
+	DUMPCORE(HDMI_CORE_AV_SPD_VERS);
+	DUMPCORE(HDMI_CORE_AV_SPD_LEN);
+	DUMPCORE(HDMI_CORE_AV_SPD_CHSUM);
+	DUMPCORE(HDMI_CORE_AV_AUDIO_TYPE);
+	DUMPCORE(HDMI_CORE_AV_AUDIO_VERS);
+	DUMPCORE(HDMI_CORE_AV_AUDIO_LEN);
+	DUMPCORE(HDMI_CORE_AV_AUDIO_CHSUM);
+	DUMPCORE(HDMI_CORE_AV_MPEG_TYPE);
+	DUMPCORE(HDMI_CORE_AV_MPEG_VERS);
+	DUMPCORE(HDMI_CORE_AV_MPEG_LEN);
+	DUMPCORE(HDMI_CORE_AV_MPEG_CHSUM);
+	DUMPCORE(HDMI_CORE_AV_CP_BYTE1);
+	DUMPCORE(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_SND_OMAP_SOC_OMAP4_HDMI) || \
 	defined(CONFIG_SND_OMAP_SOC_OMAP4_HDMI_MODULE)
 void hdmi_wp_audio_config_format(struct hdmi_ip_data *ip_data,