From f5870879e9d6519c90bb530257b3b4a2ac25a8b1 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Mon, 22 Jan 2018 10:25:15 +0100 Subject: [PATCH] drm/sun4i: backend: Move line stride setup to buffer setup function Setup the line stride in the buffer setup function, since it's tied to the buffer itself, and is not needed when we do not set the buffer in the backend. This is for example the case when using the frontend and then routing its output to the backend. Reviewed-by: Chen-Yu Tsai Reviewed-by: Neil Armstrong Signed-off-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/cbec84125bc0d5a6cf1d856b8291fbf77b138881.1516613040.git-series.maxime.ripard@free-electrons.com --- drivers/gpu/drm/sun4i/sun4i_backend.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/sun4i/sun4i_backend.c b/drivers/gpu/drm/sun4i/sun4i_backend.c index 847eecb..095fddb 100644 --- a/drivers/gpu/drm/sun4i/sun4i_backend.c +++ b/drivers/gpu/drm/sun4i/sun4i_backend.c @@ -141,7 +141,6 @@ int sun4i_backend_update_layer_coord(struct sun4i_backend *backend, int layer, struct drm_plane *plane) { struct drm_plane_state *state = plane->state; - struct drm_framebuffer *fb = state->fb; DRM_DEBUG_DRIVER("Updating layer %d\n", layer); @@ -153,12 +152,6 @@ int sun4i_backend_update_layer_coord(struct sun4i_backend *backend, state->crtc_h)); } - /* Set the line width */ - DRM_DEBUG_DRIVER("Layer line width: %d bits\n", fb->pitches[0] * 8); - regmap_write(backend->engine.regs, - SUN4I_BACKEND_LAYLINEWIDTH_REG(layer), - fb->pitches[0] * 8); - /* Set height and width */ DRM_DEBUG_DRIVER("Layer size W: %u H: %u\n", state->crtc_w, state->crtc_h); @@ -218,6 +211,12 @@ int sun4i_backend_update_layer_buffer(struct sun4i_backend *backend, u32 lo_paddr, hi_paddr; dma_addr_t paddr; + /* Set the line width */ + DRM_DEBUG_DRIVER("Layer line width: %d bits\n", fb->pitches[0] * 8); + regmap_write(backend->engine.regs, + SUN4I_BACKEND_LAYLINEWIDTH_REG(layer), + fb->pitches[0] * 8); + /* Get the start of the displayed memory */ paddr = drm_fb_cma_get_gem_addr(fb, state, 0); DRM_DEBUG_DRIVER("Setting buffer address to %pad\n", &paddr); -- 2.7.4