diff options
Diffstat (limited to 'drivers/gpu/drm/exynos/exynos_drm_fimd.c')
| -rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_fimd.c | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c index ae576122873e..700ca4fa6665 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c @@ -343,13 +343,18 @@ static void fimd_enable_shadow_channel_path(struct fimd_context *ctx, writel(val, ctx->regs + SHADOWCON); } -static void fimd_clear_channels(struct exynos_drm_crtc *crtc) +static int fimd_clear_channels(struct exynos_drm_crtc *crtc) { struct fimd_context *ctx = crtc->ctx; unsigned int win, ch_enabled = 0; + int ret; /* Hardware is in unknown state, so ensure it gets enabled properly */ - pm_runtime_get_sync(ctx->dev); + ret = pm_runtime_resume_and_get(ctx->dev); + if (ret < 0) { + dev_err(ctx->dev, "failed to enable FIMD device.\n"); + return ret; + } clk_prepare_enable(ctx->bus_clk); clk_prepare_enable(ctx->lcd_clk); @@ -384,6 +389,8 @@ static void fimd_clear_channels(struct exynos_drm_crtc *crtc) clk_disable_unprepare(ctx->bus_clk); pm_runtime_put(ctx->dev); + + return 0; } @@ -905,7 +912,10 @@ static void fimd_atomic_enable(struct exynos_drm_crtc *crtc) ctx->suspended = false; - pm_runtime_get_sync(ctx->dev); + if (pm_runtime_resume_and_get(ctx->dev) < 0) { + dev_warn(ctx->dev, "failed to enable FIMD device.\n"); + return; + } /* if vblank was enabled status, enable it again. */ if (test_and_clear_bit(0, &ctx->irq_flags)) @@ -1089,8 +1099,13 @@ static int fimd_bind(struct device *dev, struct device *master, void *data) if (ctx->encoder) exynos_dpi_bind(drm_dev, ctx->encoder); - if (is_drm_iommu_supported(drm_dev)) - fimd_clear_channels(ctx->crtc); + if (is_drm_iommu_supported(drm_dev)) { + int ret; + + ret = fimd_clear_channels(ctx->crtc); + if (ret < 0) + return ret; + } return exynos_drm_register_dma(drm_dev, dev, &ctx->dma_priv); } |