diff options
Diffstat (limited to 'patches.tizen/0564-drm-exynos-fimd-disable-windows-before-registering-d.patch')
| -rw-r--r-- | patches.tizen/0564-drm-exynos-fimd-disable-windows-before-registering-d.patch | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/patches.tizen/0564-drm-exynos-fimd-disable-windows-before-registering-d.patch b/patches.tizen/0564-drm-exynos-fimd-disable-windows-before-registering-d.patch new file mode 100644 index 00000000000..b5b89f4e6c1 --- /dev/null +++ b/patches.tizen/0564-drm-exynos-fimd-disable-windows-before-registering-d.patch @@ -0,0 +1,36 @@ +From 6402dc41098e3f8482f76d961f63b33cc28a6063 Mon Sep 17 00:00:00 2001 +From: Marek Szyprowski <m.szyprowski@samsung.com> +Date: Thu, 8 Aug 2013 11:24:33 +0200 +Subject: [PATCH 0564/1302] drm/exynos: fimd: disable windows before + registering driver + +Bootloader might enable some windows, so ensure that all windows are +disabled before registering to the system. This solves IOMMU fault during +registration if bootloader enabled some FIMD windows. + +Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> +Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> +--- + drivers/gpu/drm/exynos/exynos_drm_fimd.c | 5 ++++- + 1 file changed, 4 insertions(+), 1 deletion(-) + +diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c +index 8aec342..ec060cb 100644 +--- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c ++++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c +@@ -1021,8 +1021,11 @@ static int fimd_probe(struct platform_device *pdev) + DRM_DEBUG_KMS("pixel clock = %d, clkdiv = %d\n", + panel->timing.pixclock, ctx->clkdiv); + +- for (win = 0; win < WINDOWS_NR; win++) ++ for (win = 0; win < WINDOWS_NR; win++) { + fimd_clear_win(ctx, win); ++ fimd_win_disable(dev, win); ++ } ++ fimd_wait_for_vblank(dev); + + exynos_drm_subdrv_register(subdrv); + +-- +1.8.3.2 + |