Add dss_get_hdmi_venc_clk_source(), which can be used to get the value
programmed with dss_select_hdmi_venc_clk_source(). This can be used to
find out if the digit output is going to VENC or HDMI.

For OMAP2/3 dss_get_hdmi_venc_clk_source() always returns
DSS_VENC_TV_CLK.

Signed-off-by: Tomi Valkeinen <tomi.valkei...@ti.com>
---
 drivers/video/omap2/dss/dss.c |   11 +++++++++++
 drivers/video/omap2/dss/dss.h |    1 +
 2 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c
index 356d3c1..3e09726 100644
--- a/drivers/video/omap2/dss/dss.c
+++ b/drivers/video/omap2/dss/dss.c
@@ -639,6 +639,17 @@ void dss_select_hdmi_venc_clk_source(enum 
dss_hdmi_venc_clk_source_select hdmi)
        REG_FLD_MOD(DSS_CONTROL, hdmi, 15, 15); /* VENC_HDMI_SWITCH */
 }
 
+enum dss_hdmi_venc_clk_source_select dss_get_hdmi_venc_clk_source(void)
+{
+       enum omap_display_type displays;
+
+       displays = dss_feat_get_supported_displays(OMAP_DSS_CHANNEL_DIGIT);
+       if ((displays & OMAP_DISPLAY_TYPE_HDMI) == 0)
+               return DSS_VENC_TV_CLK;
+
+       return REG_GET(DSS_CONTROL, 15, 15);
+}
+
 static int dss_get_clocks(void)
 {
        struct clk *clk;
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index a095a62..57b1a01 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -210,6 +210,7 @@ int dss_runtime_get(void);
 void dss_runtime_put(void);
 
 void dss_select_hdmi_venc_clk_source(enum dss_hdmi_venc_clk_source_select);
+enum dss_hdmi_venc_clk_source_select dss_get_hdmi_venc_clk_source(void);
 const char *dss_get_generic_clk_source_name(enum omap_dss_clk_source clk_src);
 void dss_dump_clocks(struct seq_file *s);
 
-- 
1.7.4.1

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