diff options
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/bridge/Kconfig | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/bridge/analogix/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/bridge/lontium-lt8912b.c | 32 | ||||
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_tt.c | 29 |
4 files changed, 40 insertions, 25 deletions
diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig index 22a467abd3e9..400193e38d29 100644 --- a/drivers/gpu/drm/bridge/Kconfig +++ b/drivers/gpu/drm/bridge/Kconfig @@ -66,6 +66,7 @@ config DRM_LONTIUM_LT8912B depends on OF select DRM_PANEL_BRIDGE select DRM_KMS_HELPER + select DRM_MIPI_DSI select REGMAP_I2C help Driver for Lontium LT8912B DSI to HDMI bridge @@ -81,6 +82,7 @@ config DRM_LONTIUM_LT9611 depends on OF select DRM_PANEL_BRIDGE select DRM_KMS_HELPER + select DRM_MIPI_DSI select REGMAP_I2C help Driver for Lontium LT9611 DSI to HDMI bridge @@ -94,6 +96,7 @@ config DRM_LONTIUM_LT9611UXC depends on OF select DRM_PANEL_BRIDGE select DRM_KMS_HELPER + select DRM_MIPI_DSI select REGMAP_I2C help Driver for Lontium LT9611UXC DSI to HDMI bridge diff --git a/drivers/gpu/drm/bridge/analogix/Kconfig b/drivers/gpu/drm/bridge/analogix/Kconfig index 024ea2a570e7..9160fd80dd70 100644 --- a/drivers/gpu/drm/bridge/analogix/Kconfig +++ b/drivers/gpu/drm/bridge/analogix/Kconfig @@ -30,6 +30,7 @@ config DRM_ANALOGIX_ANX7625 tristate "Analogix Anx7625 MIPI to DP interface support" depends on DRM depends on OF + select DRM_MIPI_DSI help ANX7625 is an ultra-low power 4K mobile HD transmitter designed for portable devices. It converts MIPI/DPI to diff --git a/drivers/gpu/drm/bridge/lontium-lt8912b.c b/drivers/gpu/drm/bridge/lontium-lt8912b.c index 4f693123985b..443f1b47e031 100644 --- a/drivers/gpu/drm/bridge/lontium-lt8912b.c +++ b/drivers/gpu/drm/bridge/lontium-lt8912b.c @@ -622,7 +622,8 @@ static int lt8912_parse_dt(struct lt8912 *lt) { struct gpio_desc *gp_reset; struct device *dev = lt->dev; - int ret = 0; + int ret; + int data_lanes; struct device_node *port_node; struct device_node *endpoint; @@ -636,19 +637,21 @@ static int lt8912_parse_dt(struct lt8912 *lt) lt->gp_reset = gp_reset; endpoint = of_graph_get_endpoint_by_regs(dev->of_node, 0, -1); - if (IS_ERR(endpoint)) { - ret = PTR_ERR(endpoint); - goto end; - } + if (!endpoint) + return -ENODEV; - lt->data_lanes = of_property_count_u32_elems(endpoint, "data-lanes"); + data_lanes = of_property_count_u32_elems(endpoint, "data-lanes"); of_node_put(endpoint); + if (data_lanes < 0) { + dev_err(lt->dev, "%s: Bad data-lanes property\n", __func__); + return data_lanes; + } + lt->data_lanes = data_lanes; lt->host_node = of_graph_get_remote_node(dev->of_node, 0, -1); if (!lt->host_node) { dev_err(lt->dev, "%s: Failed to get remote port\n", __func__); - ret = -ENODEV; - goto end; + return -ENODEV; } port_node = of_graph_get_remote_node(dev->of_node, 1, -1); @@ -659,24 +662,23 @@ static int lt8912_parse_dt(struct lt8912 *lt) } lt->hdmi_port = of_drm_find_bridge(port_node); - if (IS_ERR(lt->hdmi_port)) { + if (!lt->hdmi_port) { dev_err(lt->dev, "%s: Failed to get hdmi port\n", __func__); - ret = PTR_ERR(lt->hdmi_port); - of_node_put(lt->host_node); - goto end; + ret = -ENODEV; + goto err_free_host_node; } if (!of_device_is_compatible(port_node, "hdmi-connector")) { dev_err(lt->dev, "%s: Failed to get hdmi port\n", __func__); ret = -EINVAL; + goto err_free_host_node; } of_node_put(port_node); - -end: - return ret; + return 0; err_free_host_node: + of_node_put(port_node); of_node_put(lt->host_node); return ret; } diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c index 7dcd3fb69495..eecc930e97ab 100644 --- a/drivers/gpu/drm/ttm/ttm_tt.c +++ b/drivers/gpu/drm/ttm/ttm_tt.c @@ -317,16 +317,19 @@ int ttm_tt_populate(struct ttm_device *bdev, if (ttm_tt_is_populated(ttm)) return 0; - atomic_long_add(ttm->num_pages, &ttm_pages_allocated); - if (bdev->pool.use_dma32) - atomic_long_add(ttm->num_pages, &ttm_dma32_pages_allocated); + if (!(ttm->page_flags & TTM_PAGE_FLAG_SG)) { + atomic_long_add(ttm->num_pages, &ttm_pages_allocated); + if (bdev->pool.use_dma32) + atomic_long_add(ttm->num_pages, + &ttm_dma32_pages_allocated); + } while (atomic_long_read(&ttm_pages_allocated) > ttm_pages_limit || atomic_long_read(&ttm_dma32_pages_allocated) > ttm_dma32_pages_limit) { ret = ttm_global_swapout(ctx, GFP_KERNEL); - if (ret) + if (ret < 0) goto error; } @@ -350,9 +353,12 @@ int ttm_tt_populate(struct ttm_device *bdev, return 0; error: - atomic_long_sub(ttm->num_pages, &ttm_pages_allocated); - if (bdev->pool.use_dma32) - atomic_long_sub(ttm->num_pages, &ttm_dma32_pages_allocated); + if (!(ttm->page_flags & TTM_PAGE_FLAG_SG)) { + atomic_long_sub(ttm->num_pages, &ttm_pages_allocated); + if (bdev->pool.use_dma32) + atomic_long_sub(ttm->num_pages, + &ttm_dma32_pages_allocated); + } return ret; } EXPORT_SYMBOL(ttm_tt_populate); @@ -382,9 +388,12 @@ void ttm_tt_unpopulate(struct ttm_device *bdev, struct ttm_tt *ttm) else ttm_pool_free(&bdev->pool, ttm); - atomic_long_sub(ttm->num_pages, &ttm_pages_allocated); - if (bdev->pool.use_dma32) - atomic_long_sub(ttm->num_pages, &ttm_dma32_pages_allocated); + if (!(ttm->page_flags & TTM_PAGE_FLAG_SG)) { + atomic_long_sub(ttm->num_pages, &ttm_pages_allocated); + if (bdev->pool.use_dma32) + atomic_long_sub(ttm->num_pages, + &ttm_dma32_pages_allocated); + } ttm->page_flags &= ~TTM_PAGE_FLAG_PRIV_POPULATED; } |