From: Eric Anholt Date: Sat, 3 Jun 2017 01:57:33 +0000 (-0700) Subject: drm/pl111: Fix offset calculation for the primary plane. X-Git-Tag: v4.14-rc1~8^2~52^2~192 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=2af168e171f75c783366164c7c810e8ee1440405;p=platform%2Fkernel%2Flinux-rpi.git drm/pl111: Fix offset calculation for the primary plane. If src_x/y were nonzero, we failed to shift them down by 16 to get the pixel offset. The recent CMA helper function gets it right. Signed-off-by: Eric Anholt Fixes: bed41005e617 ("drm/pl111: Initial drm/kms driver for pl111") Reported-by: Mircea Carausu Link: http://patchwork.freedesktop.org/patch/msgid/20170603015733.13266-1-eric@anholt.net Reviewed-by: Sean Paul --- diff --git a/drivers/gpu/drm/pl111/pl111_display.c b/drivers/gpu/drm/pl111/pl111_display.c index 3e0a4fa..c6ca4f1b 100644 --- a/drivers/gpu/drm/pl111/pl111_display.c +++ b/drivers/gpu/drm/pl111/pl111_display.c @@ -50,17 +50,6 @@ irqreturn_t pl111_irq(int irq, void *data) return status; } -static u32 pl111_get_fb_offset(struct drm_plane_state *pstate) -{ - struct drm_framebuffer *fb = pstate->fb; - struct drm_gem_cma_object *obj = drm_fb_cma_get_gem_obj(fb, 0); - - return (obj->paddr + - fb->offsets[0] + - fb->format->cpp[0] * pstate->src_x + - fb->pitches[0] * pstate->src_y); -} - static int pl111_display_check(struct drm_simple_display_pipe *pipe, struct drm_plane_state *pstate, struct drm_crtc_state *cstate) @@ -73,7 +62,7 @@ static int pl111_display_check(struct drm_simple_display_pipe *pipe, return -EINVAL; if (fb) { - u32 offset = pl111_get_fb_offset(pstate); + u32 offset = drm_fb_cma_get_gem_addr(fb, pstate, 0); /* FB base address must be dword aligned. */ if (offset & 3) @@ -249,7 +238,7 @@ static void pl111_display_update(struct drm_simple_display_pipe *pipe, struct drm_framebuffer *fb = pstate->fb; if (fb) { - u32 addr = pl111_get_fb_offset(pstate); + u32 addr = drm_fb_cma_get_gem_addr(fb, pstate, 0); writel(addr, priv->regs + CLCD_UBAS); }