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fbdev: sh_mobile_hdmi: enable "external" mode

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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@gmx.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Guennadi Liakhovetski 2010-09-03 07:20:20 +00:00 committed by Paul Mundt
parent 6e45746c36
commit 89712699d7
1 changed files with 12 additions and 1 deletions
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13
drivers/video/sh_mobile_hdmi.c
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@ -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);
}
/**
@ -633,6 +637,13 @@ 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);
}