fbdev: sh_mobile_hdmi: enable "external" mode
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>
diff --git a/drivers/video/sh_mobile_hdmi.c b/drivers/video/sh_mobile_hdmi.c
index 27d76bc..a8cf9a5 100644
--- a/drivers/video/sh_mobile_hdmi.c
+++ b/drivers/video/sh_mobile_hdmi.c
@@ -205,6 +205,7 @@
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 @@
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 @@
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);
}