Hi,
On Tue, Mar 5, 2013 at 5:24 PM, Joonyoung Shim jy0922.shim@samsung.com wrote:
Hi Leela,
On 03/05/2013 08:25 PM, Leela Krishna Amudala wrote:
Calculate the correct address offset values for alpha and color key control registers
Signed-off-by: Leela Krishna Amudala l.krishna@samsung.com
drivers/gpu/drm/exynos/exynos_drm_fimd.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c index 9537761..71f4176 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c @@ -41,7 +41,7 @@ /* size control register for hardware window 0. */ #define VIDOSD_C_SIZE_W0 (VIDOSD_BASE + 0x08)
How about just use VIDOSD_C(win) instead of this macro for size control register of windows0? I think it's better if writes comments properly here.
Then in that case VIDOSD_C(0) will refer to Window 0 Size Control register VIDOSD_C(1) will refer to Window 1 Alpha Control register VIDOSD_C(2) will refer to Window 2 Alpha Control register VIDOSD_C(3) will refer to Window 3 Alpha Control register VIDOSD_C(4) will refer to Window 4 Alpha Control register Which leads to a confusion.
IMHO keeping VIDOSD_C_SIZE_W0 separate for win 0 is good.
Best Wishes, Leela Krishna Amudala
/* alpha control register for hardware window 1 ~ 4. */ -#define VIDOSD_C(win) (VIDOSD_BASE + 0x18 + (win) * 16) +#define VIDOSD_C(win) (VIDOSD_BASE + 0x08 + (win) * 16) /* size control register for hardware window 1 ~ 4. */ #define VIDOSD_D(win) (VIDOSD_BASE + 0x0C + (win) * 16) @@ -50,9 +50,9 @@ #define VIDWx_BUF_SIZE(win, buf) (VIDW_BUF_SIZE(buf) + (win) * 4) /* color key control register for hardware window 1 ~ 4. */ -#define WKEYCON0_BASE(x) ((WKEYCON0 + 0x140) + (x * 8)) +#define WKEYCON0_BASE(x) ((WKEYCON0 + 0x140) + ((x - 1) * 8)) /* color key value register for hardware window 1 ~ 4. */ -#define WKEYCON1_BASE(x) ((WKEYCON1 + 0x140) + (x * 8)) +#define WKEYCON1_BASE(x) ((WKEYCON1 + 0x140) + ((x - 1) * 8)) /* FIMD has totally five hardware windows. */ #define WINDOWS_NR 5 @@ -782,7 +782,8 @@ static void fimd_clear_win(struct fimd_context *ctx, int win) writel(0, ctx->regs + WINCON(win)); writel(0, ctx->regs + VIDOSD_A(win)); writel(0, ctx->regs + VIDOSD_B(win));
writel(0, ctx->regs + VIDOSD_C(win));
if (win != 0)writel(0, ctx->regs + VIDOSD_C(win));If use VIDOSD_C(win) macro for size control register of windows0 then this fix will be unnecessary.
Thanks.
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