summaryrefslogtreecommitdiff
path: root/drivers/video/sh_mobile_lcdcfb.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/video/sh_mobile_lcdcfb.c')
-rw-r--r--drivers/video/sh_mobile_lcdcfb.c104
1 files changed, 74 insertions, 30 deletions
diff --git a/drivers/video/sh_mobile_lcdcfb.c b/drivers/video/sh_mobile_lcdcfb.c
index b02d97a879d6..bd4840a8a6b7 100644
--- a/drivers/video/sh_mobile_lcdcfb.c
+++ b/drivers/video/sh_mobile_lcdcfb.c
@@ -54,8 +54,8 @@ static int lcdc_shared_regs[] = {
};
#define NR_SHARED_REGS ARRAY_SIZE(lcdc_shared_regs)
-#define DEFAULT_XRES 1280
-#define DEFAULT_YRES 1024
+#define MAX_XRES 1920
+#define MAX_YRES 1080
static unsigned long lcdc_offs_mainlcd[NR_CH_REGS] = {
[LDDCKPAT1R] = 0x400,
@@ -139,6 +139,7 @@ struct sh_mobile_lcdc_priv {
struct notifier_block notifier;
unsigned long saved_shared_regs[NR_SHARED_REGS];
int started;
+ int forced_bpp; /* 2 channel LCDC must share bpp setting */
};
static bool banked(int reg_nr)
@@ -461,13 +462,18 @@ static int sh_mobile_lcdc_start(struct sh_mobile_lcdc_priv *priv)
struct sh_mobile_lcdc_chan *ch;
struct sh_mobile_lcdc_board_cfg *board_cfg;
unsigned long tmp;
+ int bpp = 0;
int k, m;
int ret = 0;
/* enable clocks before accessing the hardware */
- for (k = 0; k < ARRAY_SIZE(priv->ch); k++)
- if (priv->ch[k].enabled)
+ for (k = 0; k < ARRAY_SIZE(priv->ch); k++) {
+ if (priv->ch[k].enabled) {
sh_mobile_lcdc_clk_on(priv);
+ if (!bpp)
+ bpp = priv->ch[k].info->var.bits_per_pixel;
+ }
+ }
/* reset */
lcdc_write(priv, _LDCNT2R, lcdc_read(priv, _LDCNT2R) | LCDC_RESET);
@@ -535,7 +541,17 @@ static int sh_mobile_lcdc_start(struct sh_mobile_lcdc_priv *priv)
}
/* word and long word swap */
- lcdc_write(priv, _LDDDSR, lcdc_read(priv, _LDDDSR) | 6);
+ switch (bpp) {
+ case 16:
+ lcdc_write(priv, _LDDDSR, lcdc_read(priv, _LDDDSR) | 6);
+ break;
+ case 24:
+ lcdc_write(priv, _LDDDSR, lcdc_read(priv, _LDDDSR) | 7);
+ break;
+ case 32:
+ lcdc_write(priv, _LDDDSR, lcdc_read(priv, _LDDDSR) | 4);
+ break;
+ }
for (k = 0; k < ARRAY_SIZE(priv->ch); k++) {
ch = &priv->ch[k];
@@ -546,7 +562,16 @@ static int sh_mobile_lcdc_start(struct sh_mobile_lcdc_priv *priv)
/* set bpp format in PKF[4:0] */
tmp = lcdc_read_chan(ch, LDDFR);
tmp &= ~0x0001001f;
- tmp |= (ch->info->var.bits_per_pixel == 16) ? 3 : 0;
+ switch (ch->info->var.bits_per_pixel) {
+ case 16:
+ tmp |= 0x03;
+ break;
+ case 24:
+ tmp |= 0x0b;
+ break;
+ case 32:
+ break;
+ }
lcdc_write_chan(ch, LDDFR, tmp);
/* point out our frame buffer */
@@ -913,25 +938,30 @@ static int sh_mobile_open(struct fb_info *info, int user)
static int sh_mobile_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
{
struct sh_mobile_lcdc_chan *ch = info->par;
+ struct sh_mobile_lcdc_priv *p = ch->lcdc;
- if (var->xres < 160 || var->xres > 1920 ||
- var->yres < 120 || var->yres > 1080 ||
- var->left_margin < 32 || var->left_margin > 320 ||
- var->right_margin < 12 || var->right_margin > 240 ||
- var->upper_margin < 12 || var->upper_margin > 120 ||
- var->lower_margin < 1 || var->lower_margin > 64 ||
- var->hsync_len < 32 || var->hsync_len > 240 ||
- var->vsync_len < 2 || var->vsync_len > 64 ||
- var->pixclock < 6000 || var->pixclock > 40000 ||
+ if (var->xres > MAX_XRES || var->yres > MAX_YRES ||
var->xres * var->yres * (ch->cfg.bpp / 8) * 2 > info->fix.smem_len) {
- dev_warn(info->dev, "Invalid info: %u %u %u %u %u %u %u %u %u!\n",
- var->xres, var->yres,
- var->left_margin, var->right_margin,
- var->upper_margin, var->lower_margin,
- var->hsync_len, var->vsync_len,
- var->pixclock);
+ dev_warn(info->dev, "Invalid info: %u-%u-%u-%u x %u-%u-%u-%u @ %lukHz!\n",
+ var->left_margin, var->xres, var->right_margin, var->hsync_len,
+ var->upper_margin, var->yres, var->lower_margin, var->vsync_len,
+ PICOS2KHZ(var->pixclock));
return -EINVAL;
}
+
+ /* only accept the forced_bpp for dual channel configurations */
+ if (p->forced_bpp && p->forced_bpp != var->bits_per_pixel)
+ return -EINVAL;
+
+ switch (var->bits_per_pixel) {
+ case 16: /* PKF[4:0] = 00011 - RGB 565 */
+ case 24: /* PKF[4:0] = 01011 - RGB 888 */
+ case 32: /* PKF[4:0] = 00000 - RGBA 888 */
+ break;
+ default:
+ return -EINVAL;
+ }
+
return 0;
}
@@ -964,19 +994,27 @@ static int sh_mobile_lcdc_set_bpp(struct fb_var_screeninfo *var, int bpp)
var->transp.length = 0;
break;
- case 32: /* PKF[4:0] = 00000 - RGB 888
- * sh7722 pdf says 00RRGGBB but reality is GGBB00RR
- * this may be because LDDDSR has word swap enabled..
- */
- var->red.offset = 0;
+ case 24: /* PKF[4:0] = 01011 - RGB 888 */
+ var->red.offset = 16;
var->red.length = 8;
- var->green.offset = 24;
+ var->green.offset = 8;
var->green.length = 8;
- var->blue.offset = 16;
+ var->blue.offset = 0;
var->blue.length = 8;
var->transp.offset = 0;
var->transp.length = 0;
break;
+
+ case 32: /* PKF[4:0] = 00000 - RGBA 888 */
+ var->red.offset = 16;
+ var->red.length = 8;
+ var->green.offset = 8;
+ var->green.length = 8;
+ var->blue.offset = 0;
+ var->blue.length = 8;
+ var->transp.offset = 24;
+ var->transp.length = 8;
+ break;
default:
return -EINVAL;
}
@@ -1180,6 +1218,10 @@ static int __devinit sh_mobile_lcdc_probe(struct platform_device *pdev)
goto err1;
}
+ /* for dual channel LCDC (MAIN + SUB) force shared bpp setting */
+ if (j == 2)
+ priv->forced_bpp = pdata->ch[0].bpp;
+
priv->base = ioremap_nocache(res->start, resource_size(res));
if (!priv->base)
goto err1;
@@ -1226,7 +1268,7 @@ static int __devinit sh_mobile_lcdc_probe(struct platform_device *pdev)
}
if (!mode)
- max_size = DEFAULT_XRES * DEFAULT_YRES;
+ max_size = MAX_XRES * MAX_YRES;
else if (max_cfg)
dev_dbg(&pdev->dev, "Found largest videomode %ux%u\n",
max_cfg->xres, max_cfg->yres);
@@ -1238,12 +1280,14 @@ static int __devinit sh_mobile_lcdc_probe(struct platform_device *pdev)
mode = &default_720p;
num_cfg = 1;
} else {
- num_cfg = ch->cfg.num_cfg;
+ num_cfg = cfg->num_cfg;
}
fb_videomode_to_modelist(mode, num_cfg, &info->modelist);
fb_videomode_to_var(var, mode);
+ var->width = cfg->lcd_size_cfg.width;
+ var->height = cfg->lcd_size_cfg.height;
/* Default Y virtual resolution is 2x panel size */
var->yres_virtual = var->yres * 2;
var->activate = FB_ACTIVATE_NOW;
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-23 11:49:26 +0300