From 949470375393e82dc9158d36d675180c8c250388 Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Tue, 10 Aug 2010 18:02:32 -0700 Subject: [PATCH] s3c-fb: only init window colour key controls for windows with blending The driver clears all windows, but also sets the windows' colour key controls at the same time. However, the last window does not have these registers as it is always blended into the previous window. Move the colour key initialisation into the probe, and run it for only nr_win-1 windows. Signed-off-by: Ben Dooks Signed-off-by: Pawel Osciak Cc: InKi Dae Cc: KyungMin Park Cc: Marek Szyprowski Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/s3c-fb.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/drivers/video/s3c-fb.c b/drivers/video/s3c-fb.c index 9c46f954c614..f9d0170b2413 100644 --- a/drivers/video/s3c-fb.c +++ b/drivers/video/s3c-fb.c @@ -845,9 +845,6 @@ static void s3c_fb_clear_win(struct s3c_fb *sfb, int win) void __iomem *regs = sfb->regs; writel(0, regs + WINCON(win)); - writel(0xffffff, regs + WxKEYCONy(win, 0)); - writel(0xffffff, regs + WxKEYCONy(win, 1)); - writel(0, regs + VIDOSD_A(win)); writel(0, regs + VIDOSD_B(win)); writel(0, regs + VIDOSD_C(win)); @@ -920,6 +917,12 @@ static int __devinit s3c_fb_probe(struct platform_device *pdev) for (win = 0; win < S3C_FB_MAX_WIN; win++) s3c_fb_clear_win(sfb, win); + /* initialise colour key controls */ + for (win = 0; win < (S3C_FB_MAX_WIN - 1); win++) { + writel(0xffffff, sfb->regs + WxKEYCONy(win, 0)); + writel(0xffffff, sfb->regs + WxKEYCONy(win, 1)); + } + /* we have the register setup, start allocating framebuffers */ for (win = 0; win < S3C_FB_MAX_WIN; win++) { @@ -1020,6 +1023,11 @@ static int s3c_fb_resume(struct platform_device *pdev) for (win_no = 0; win_no < S3C_FB_MAX_WIN; win_no++) s3c_fb_clear_win(sfb, win_no); + for (win_no = 0; win_no < S3C_FB_MAX_WIN - 1; win_no++) { + writel(0xffffff, sfb->regs + WxKEYCONy(win_no, 1)); + writel(0xffffff, sfb->regs + WxKEYCONy(win_no, 1)); + } + /* restore framebuffers */ for (win_no = 0; win_no < S3C_FB_MAX_WIN; win_no++) { win = sfb->windows[win_no]; -- 2.20.1