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fbdev: sh-mobile: retrieve and propagate display sizes from EDID 

Monitor EDID contains information about physical display sizes. Retrieve
it and propagate to the framebuffer driver.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
hifive-unleashed-5.1
Guennadi Liakhovetski 2010-12-21 11:46:35 +01:00 committed by Paul Mundt
parent e0b9fb2626
commit 8c1ac08b38
1 changed files with 13 additions and 3 deletions
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16
drivers/video/sh_mobile_hdmi.c
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@ -787,6 +787,9 @@ static int sh_hdmi_read_edid(struct sh_hdmi *hdmi)
found_rate_error = rate_error;
}
hdmi->var.width = hdmi->monspec.max_x * 10;
hdmi->var.height = hdmi->monspec.max_y * 10;
/*
* TODO 1: if no ->info is present, postpone running the config until
* after ->info first gets registered.
@ -960,8 +963,12 @@ static bool sh_hdmi_must_reconfigure(struct sh_hdmi *hdmi)
dev_dbg(info->dev, "Old %ux%u, new %ux%u\n",
mode1.xres, mode1.yres, mode2.xres, mode2.yres);
if (fb_mode_is_equal(&mode1, &mode2))
if (fb_mode_is_equal(&mode1, &mode2)) {
/* It can be a different monitor with an equal video-mode */
old_var->width = new_var->width;
old_var->height = new_var->height;
return false;
}
dev_dbg(info->dev, "Switching %u -> %u lines\n",
mode1.yres, mode2.yres);
@ -1057,8 +1064,11 @@ static void sh_hdmi_edid_work_fn(struct work_struct *work)
* on, if we run a resume here, the logo disappears
*/
if (lock_fb_info(hdmi->info)) {
sh_hdmi_display_on(hdmi, hdmi->info);
unlock_fb_info(hdmi->info);
struct fb_info *info = hdmi->info;
info->var.width = hdmi->var.width;
info->var.height = hdmi->var.height;
sh_hdmi_display_on(hdmi, info);
unlock_fb_info(info);
}
} else {
/* New monitor or have to wake up */