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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-01-19 23:29:12 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-02-19 11:08:15 +0000 |
| commit | 9728c1b6a724daefc413b44e10253cdbb5e06d08 (patch) | |
| tree | a5a820936dee258f023cfe78b1a3bbfa2a499ca2 /arch | |
| parent | 95c34f831f0e06cda6dc0a26b4f693ed105c394d (diff) | |
| download | linux-stable-9728c1b6a724daefc413b44e10253cdbb5e06d08.tar.gz linux-stable-9728c1b6a724daefc413b44e10253cdbb5e06d08.tar.bz2 linux-stable-9728c1b6a724daefc413b44e10253cdbb5e06d08.zip | |
ARM: versatile: support CLCD RGB565 layout with blue LSB
RGB565 with blue in the LSB wasn't supported. Add support for this
layout.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-versatile/core.c | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/arch/arm/mach-versatile/core.c b/arch/arm/mach-versatile/core.c index 136c32e7ed8e..2866c114e682 100644 --- a/arch/arm/mach-versatile/core.c +++ b/arch/arm/mach-versatile/core.c @@ -630,18 +630,22 @@ static void versatile_clcd_disable(struct clcd_fb *fb) */ static void versatile_clcd_enable(struct clcd_fb *fb) { + struct fb_var_screeninfo *var = &fb->fb.var; void __iomem *sys_clcd = __io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_CLCD_OFFSET; u32 val; val = readl(sys_clcd); val &= ~SYS_CLCD_MODE_MASK; - switch (fb->fb.var.green.length) { + switch (var->green.length) { case 5: val |= SYS_CLCD_MODE_5551; break; case 6: - val |= SYS_CLCD_MODE_565_RLSB; + if (var->red.offset == 0) + val |= SYS_CLCD_MODE_565_RLSB; + else + val |= SYS_CLCD_MODE_565_BLSB; break; case 8: val |= SYS_CLCD_MODE_888; @@ -709,10 +713,19 @@ static void versatile_clcd_remove(struct clcd_fb *fb) fb->fb.screen_base, fb->fb.fix.smem_start); } +static void versatile_clcd_decode(struct clcd_fb *fb, struct clcd_regs *regs) +{ + clcdfb_decode(fb, regs); + + /* Always clear BGR for RGB565: we do the routing externally */ + if (fb->fb.var.green.length == 6) + regs->cntl &= ~CNTL_BGR; +} + static struct clcd_board clcd_plat_data = { .name = "Versatile", .check = clcdfb_check, - .decode = clcdfb_decode, + .decode = versatile_clcd_decode, .disable = versatile_clcd_disable, .enable = versatile_clcd_enable, .setup = versatile_clcd_setup, |