OMAP2PLUS: DSS2: Use dss features to get clock source names of current OMAP

Clock source names vary across OMAP2/3 and OMAP4, the clock source enum
names have been made generic in the driver, but for purposes of debugging
and dumping clock sources, it is better to preserve the actual TRM name of
the clock.

Introduce a dss feature function 'dss_feat_get_clk_source_name()' which
returns a string with the TRM clock name for the current OMAP in use. The OMAP
specific name is printed along the generic name within brackets.

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

1 files changed, 23 insertions, 0 deletions

diff --git a/drivers/video/omap2/dss/dss_features.c b/drivers/video/omap2/dss/dss_features.c
index 3ebe0d9..ccae57b 100644
--- a/drivers/video/omap2/dss/dss_features.c
+++ b/drivers/video/omap2/dss/dss_features.c
@@ -25,6 +25,7 @@
 #include <plat/display.h>
 #include <plat/cpu.h>
 
+#include "dss.h"
 #include "dss_features.h"
 
 /* Defines a generic omap register field */
@@ -44,6 +45,7 @@ struct omap_dss_features {
 	const unsigned long max_dss_fck;
 	const enum omap_display_type *supported_displays;
 	const enum omap_color_mode *supported_color_modes;
+	const struct dss_clk_source_name *clksrc_names;
 };
 
 /* This struct is assigned to one of the below during initialization */
@@ -157,6 +159,18 @@ static const enum omap_color_mode omap3_dss_supported_color_modes[] = {
 	OMAP_DSS_COLOR_RGBA32 | OMAP_DSS_COLOR_RGBX32,
 };
 
+static const struct dss_clk_source_name omap2_dss_clk_source_names[] = {
+	{ DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC, "N/A" },
+	{ DSS_CLK_SRC_DSI_PLL_HSDIV_DSI, "N/A" },
+	{ DSS_CLK_SRC_FCK, "DSS_FCLK1" },
+};
+
+static const struct dss_clk_source_name omap3_dss_clk_source_names[] = {
+	{ DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC, "DSI1_PLL_FCLK" },
+	{ DSS_CLK_SRC_DSI_PLL_HSDIV_DSI, "DSI2_PLL_FCLK" },
+	{ DSS_CLK_SRC_FCK, "DSS1_ALWON_FCLK" },
+};
+
 /* OMAP2 DSS Features */
 static struct omap_dss_features omap2_dss_features = {
 	.reg_fields = omap2_dss_reg_fields,
@@ -172,6 +186,7 @@ static struct omap_dss_features omap2_dss_features = {
 	.max_dss_fck = 173000000,
 	.supported_displays = omap2_dss_supported_displays,
 	.supported_color_modes = omap2_dss_supported_color_modes,
+	.clksrc_names = omap2_dss_clk_source_names,
 };
 
 /* OMAP3 DSS Features */
@@ -190,6 +205,7 @@ static struct omap_dss_features omap3430_dss_features = {
 	.max_dss_fck = 173000000,
 	.supported_displays = omap3430_dss_supported_displays,
 	.supported_color_modes = omap3_dss_supported_color_modes,
+	.clksrc_names = omap3_dss_clk_source_names,
 };
 
 static struct omap_dss_features omap3630_dss_features = {
@@ -208,6 +224,7 @@ static struct omap_dss_features omap3630_dss_features = {
 	.max_dss_fck = 173000000,
 	.supported_displays = omap3630_dss_supported_displays,
 	.supported_color_modes = omap3_dss_supported_color_modes,
+	.clksrc_names = omap3_dss_clk_source_names,
 };
 
 /* OMAP4 DSS Features */
@@ -224,6 +241,7 @@ static struct omap_dss_features omap4_dss_features = {
 	.max_dss_fck = 186000000,
 	.supported_displays = omap4_dss_supported_displays,
 	.supported_color_modes = omap3_dss_supported_color_modes,
+	.clksrc_names = omap3_dss_clk_source_names,
 };
 
 /* Functions returning values related to a DSS feature */
@@ -260,6 +278,11 @@ bool dss_feat_color_mode_supported(enum omap_plane plane,
 			color_mode;
 }
 
+const char *dss_feat_get_clk_source_name(enum dss_clk_source id)
+{
+	return omap_current_dss_features->clksrc_names[id].clksrc_name;
+}
+
 /* DSS has_feature check */
 bool dss_has_feature(enum dss_feat_id id)
 {