luck/tmp_suning_uos_patched
1
0
Fork 1
Code Issues Pull Requests Packages Projects Releases Wiki Activity

[POWERPC] XilinxFB: Use pdata to pass around framebuffer parameters

Browse Source 
The call to xilinxfb_assign is getting unwieldy when adding features
to the Xilinx framebuffer driver.  Change xilinxfb_assign() to accept
a pointer to a xilinxfb_platform_data structure to prepare for adding
additition configuration options.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Grant Likely 2007-10-11 04:31:46 +10:00 committed by Paul Mackerras
parent d94bad827d
commit 01ba1e9d26
1 changed files with 23 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

43
drivers/video/xilinxfb.c
View File

@ -83,6 +83,12 @@
#define PALETTE_ENTRIES_NO 16 /* passed to fb_alloc_cmap() */
/*
* Default xilinxfb configuration
*/
static struct xilinxfb_platform_data xilinx_fb_default_pdata = {
};
/*
* Here are the default fb_fix_screeninfo and fb_var_screeninfo structures
*/
@ -207,7 +213,7 @@ static struct fb_ops xilinxfb_ops =
*/
static int xilinxfb_assign(struct device *dev, unsigned long physaddr,
int width_mm, int height_mm, int rotate)
struct xilinxfb_platform_data *pdata)
{
struct xilinxfb_drvdata *drvdata;
int rc;
@ -253,7 +259,7 @@ static int xilinxfb_assign(struct device *dev, unsigned long physaddr,
/* Turn on the display */
drvdata->reg_ctrl_default = REG_CTRL_ENABLE;
if (rotate)
if (pdata->rotate_screen)
drvdata->reg_ctrl_default |= REG_CTRL_ROTATE;
xilinx_fb_out_be32(drvdata, REG_CTRL, drvdata->reg_ctrl_default);
@ -267,8 +273,8 @@ static int xilinxfb_assign(struct device *dev, unsigned long physaddr,
drvdata->info.flags = FBINFO_DEFAULT;
drvdata->info.var = xilinx_fb_var;
xilinx_fb_var.height = height_mm;
xilinx_fb_var.width = width_mm;
xilinx_fb_var.height = pdata->screen_height_mm;
xilinx_fb_var.width = pdata->screen_width_mm;
/* Allocate a colour map */
rc = fb_alloc_cmap(&drvdata->info.cmap, PALETTE_ENTRIES_NO, 0);
@ -349,9 +355,6 @@ xilinxfb_platform_probe(struct platform_device *pdev)
{
struct xilinxfb_platform_data *pdata;
struct resource *res;
int width_mm = 0;
int height_mm = 0;
int rotate = 0;
/* Find the registers address */
res = platform_get_resource(pdev, IORESOURCE_IO, 0);
@ -361,15 +364,12 @@ xilinxfb_platform_probe(struct platform_device *pdev)
}
/* If a pdata structure is provided, then extract the parameters */
pdata = pdev->dev.platform_data;
if (pdata) {
height_mm = pdata->screen_height_mm;
width_mm = pdata->screen_width_mm;
rotate = pdata->rotate_screen ? 1 : 0;
}
if (pdev->dev.platform_data)
pdata = pdev->dev.platform_data;
else
pdata = &xilinx_fb_default_pdata;
return xilinxfb_assign(&pdev->dev, res->start, width_mm, height_mm,
rotate);
return xilinxfb_assign(&pdev->dev, res->start, pdata);
}
static int
@ -398,9 +398,12 @@ xilinxfb_of_probe(struct of_device *op, const struct of_device_id *match)
{
struct resource res;
const u32 *prop;
int width = 0, height = 0, rotate = 0;
struct xilinxfb_platform_data pdata;
int size, rc;
/* Copy with the default pdata (not a ptr reference!) */
pdata = xilinx_fb_default_pdata;
dev_dbg(&op->dev, "xilinxfb_of_probe(%p, %p)\n", op, match);
rc = of_address_to_resource(op->node, 0, &res);
@ -411,14 +414,14 @@ xilinxfb_of_probe(struct of_device *op, const struct of_device_id *match)
prop = of_get_property(op->node, "display-number", &size);
if ((prop) && (size >= sizeof(u32)*2)) {
width = prop[0];
height = prop[1];
pdata.screen_width_mm = prop[0];
pdata.screen_height_mm = prop[1];
}
if (of_find_property(op->node, "rotate-display", NULL))
rotate = 1;
pdata.rotate_screen = 1;
return xilinxfb_assign(&op->dev, res.start, width, height, rotate);
return xilinxfb_assign(&op->dev, res.start, &pdata);
}
static int __devexit xilinxfb_of_remove(struct of_device *op)