The SH-Mobile HDMI controller supports two configuration modes: using
pre-programmed VICs and the "external" mode - specifying video parameters
explicitly. The driver already contains code, necessary to configure HDMI
manually, this patch actually enables it.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@xxxxxx>
---
drivers/video/sh_mobile_hdmi.c | 13 ++++++++++++-
1 files changed, 12 insertions(+), 1 deletions(-)
diff --git a/drivers/video/sh_mobile_hdmi.c b/drivers/video/sh_mobile_hdmi.c
index fd91204..293b16d 100644
--- a/drivers/video/sh_mobile_hdmi.c
+++ b/drivers/video/sh_mobile_hdmi.c
@@ -205,6 +205,7 @@ enum hotplug_state {
struct sh_hdmi {
void __iomem *base;
enum hotplug_state hp_state;
+ bool preprogrammed_mode; /* use a pre-programmed VIC or the external mode */
struct clk *hdmi_clk;
struct device *dev;
struct fb_info *info;
@@ -282,7 +283,10 @@ static void hdmi_external_video_param(struct sh_hdmi *hdmi)
hdmi_write(hdmi, var->vsync_len, HDMI_EXTERNAL_V_DURATION);
- /* Set bit 0 of HDMI_EXTERNAL_VIDEO_PARAM_SETTINGS here for manual mode */
+ /* Set bit 0 of HDMI_EXTERNAL_VIDEO_PARAM_SETTINGS here for external mode */
+ if (!hdmi->preprogrammed_mode)
+ hdmi_write(hdmi, sync | 1 | (voffset << 4),
+ HDMI_EXTERNAL_VIDEO_PARAM_SETTINGS);
}
/**
@@ -739,6 +743,13 @@ static void sh_hdmi_read_edid(struct sh_hdmi *hdmi)
var->upper_margin, var->yres, var->lower_margin, var->vsync_len,
PICOS2KHZ(var->pixclock));
+ if ((hdmi->var.xres == 720 && hdmi->var.yres == 480) ||
+ (hdmi->var.xres == 1280 && hdmi->var.yres == 720) ||
+ (hdmi->var.xres == 1920 && hdmi->var.yres == 1080))
+ hdmi->preprogrammed_mode = true;
+ else
+ hdmi->preprogrammed_mode = false;
+
hdmi_external_video_param(hdmi);
}
--
1.7.1
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