From: Ben Skeggs Date: Fri, 14 Oct 2011 06:13:10 +0000 (+1000) Subject: drm/nv50/disp: synchronise display right after init X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=b98e3f5c9e42f70c171f67331773a575441eab3b;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git drm/nv50/disp: synchronise display right after init This has the effect of ensuring the encoders which were active before we loaded get disconnected properly before we start reprogramming them. Also removing a bit of cargo-cult from the initial evo pushbuf. Signed-off-by: Ben Skeggs --- diff --git a/drivers/gpu/drm/nouveau/nv50_crtc.c b/drivers/gpu/drm/nouveau/nv50_crtc.c index f794b4e08f5f..c1c57cb37208 100644 --- a/drivers/gpu/drm/nouveau/nv50_crtc.c +++ b/drivers/gpu/drm/nouveau/nv50_crtc.c @@ -627,7 +627,7 @@ nv50_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *mode, } } - ret = RING_SPACE(evo, 17); + ret = RING_SPACE(evo, 19); if (ret) return ret; @@ -652,7 +652,10 @@ nv50_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *mode, } BEGIN_RING(evo, 0, NV50_EVO_CRTC(nv_crtc->index, UNK082C), 1); - OUT_RING(evo, 0); + OUT_RING (evo, 0); + /* required to make display sync channel not hate life */ + BEGIN_RING(evo, 0, NV50_EVO_CRTC(nv_crtc->index, UNK900), 1); + OUT_RING (evo, 0x00000311); /* This is the actual resolution of the mode. */ BEGIN_RING(evo, 0, NV50_EVO_CRTC(nv_crtc->index, REAL_RES), 1); diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c index 80b220f4b125..a37e32e00ec8 100644 --- a/drivers/gpu/drm/nouveau/nv50_display.c +++ b/drivers/gpu/drm/nouveau/nv50_display.c @@ -210,31 +210,14 @@ nv50_display_init(struct drm_device *dev) nv_wr32(dev, NV50_PDISPLAY_OBJECTS, (evo->ramin->vinst >> 8) | 9); - ret = RING_SPACE(evo, 15); + ret = RING_SPACE(evo, 3); if (ret) return ret; BEGIN_RING(evo, 0, NV50_EVO_UNK84, 2); - OUT_RING(evo, NV50_EVO_UNK84_NOTIFY_DISABLED); - OUT_RING(evo, NvEvoSync); - BEGIN_RING(evo, 0, NV50_EVO_CRTC(0, FB_DMA), 1); - OUT_RING(evo, NV50_EVO_CRTC_FB_DMA_HANDLE_NONE); - BEGIN_RING(evo, 0, NV50_EVO_CRTC(0, UNK0800), 1); - OUT_RING(evo, 0); - BEGIN_RING(evo, 0, NV50_EVO_CRTC(0, DISPLAY_START), 1); - OUT_RING(evo, 0); - BEGIN_RING(evo, 0, NV50_EVO_CRTC(0, UNK082C), 1); - OUT_RING(evo, 0); - /* required to make display sync channels not hate life */ - BEGIN_RING(evo, 0, NV50_EVO_CRTC(0, UNK900), 1); - OUT_RING (evo, 0x00000311); - BEGIN_RING(evo, 0, NV50_EVO_CRTC(1, UNK900), 1); - OUT_RING (evo, 0x00000311); - FIRE_RING(evo); - if (!nv_wait(dev, 0x640004, 0xffffffff, evo->dma.put << 2)) - NV_ERROR(dev, "evo pushbuf stalled\n"); - + OUT_RING (evo, NV50_EVO_UNK84_NOTIFY_DISABLED); + OUT_RING (evo, NvEvoSync); - return 0; + return nv50_display_sync(dev); } static int nv50_display_disable(struct drm_device *dev) @@ -754,8 +737,8 @@ nv50_display_unk20_handler(struct drm_device *dev) if (crtc >= 0) { pclk = nv_rd32(dev, NV50_PDISPLAY_CRTC_P(crtc, CLOCK)); pclk &= 0x003fffff; - - nv50_crtc_set_clock(dev, crtc, pclk); + if (pclk) + nv50_crtc_set_clock(dev, crtc, pclk); tmp = nv_rd32(dev, NV50_PDISPLAY_CRTC_CLK_CTRL2(crtc)); tmp &= ~0x000000f;