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fbdev: sh_mobile_hdmi: simplify the EDID reading procedure 

The present SH-Mobile HDMI driver reads and parses the EDID block into a
variable screeninfo object, but since it is still unable to dynamically
reconfigure the framebuffer, it overwrites the EDID information with preset
values again. This patch just uses a temporary variable to store the EDID
timing information instead.

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 07:19:53 +00:00 committed by Paul Mundt
parent 14177a5e56
commit 6ee4845270
1 changed files with 3 additions and 20 deletions
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23
drivers/video/sh_mobile_hdmi.c
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@ -557,10 +557,9 @@ static void sh_hdmi_configure(struct sh_hdmi *hdmi)
static void sh_hdmi_read_edid(struct sh_hdmi *hdmi)
{
struct fb_var_screeninfo *var = &hdmi->var;
struct sh_mobile_hdmi_info *pdata = hdmi->dev->platform_data;
struct fb_videomode *lcd_cfg = &pdata->lcd_chan->lcd_cfg;
unsigned long height = var->height, width = var->width;
struct fb_var_screeninfo tmpvar;
/* TODO: When we are ready to use EDID, use this to fill &hdmi->var */
struct fb_var_screeninfo *var = &tmpvar;
int i;
u8 edid[128];
@ -586,22 +585,6 @@ static void sh_hdmi_read_edid(struct sh_hdmi *hdmi)
var->upper_margin, var->yres, var->lower_margin, var->vsync_len,
PICOS2KHZ(var->pixclock));
/* FIXME: Use user-provided configuration instead of EDID */
var->width = width;
var->xres = lcd_cfg->xres;
var->xres_virtual = lcd_cfg->xres;
var->left_margin = lcd_cfg->left_margin;
var->right_margin = lcd_cfg->right_margin;
var->hsync_len = lcd_cfg->hsync_len;
var->height = height;
var->yres = lcd_cfg->yres;
var->yres_virtual = lcd_cfg->yres * 2;
var->upper_margin = lcd_cfg->upper_margin;
var->lower_margin = lcd_cfg->lower_margin;
var->vsync_len = lcd_cfg->vsync_len;
var->sync = lcd_cfg->sync;
var->pixclock = lcd_cfg->pixclock;
hdmi_external_video_param(hdmi);
}