diff options
Diffstat (limited to 'drivers/gpu/drm/exynos')
-rw-r--r-- | drivers/gpu/drm/exynos/exynos_dp.c | 35 | ||||
-rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_dpi.c | 16 | ||||
-rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_dsi.c | 13 | ||||
-rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_mic.c | 25 |
4 files changed, 17 insertions, 72 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_dp.c b/drivers/gpu/drm/exynos/exynos_dp.c index b445b50a5dc4..385537b726a6 100644 --- a/drivers/gpu/drm/exynos/exynos_dp.c +++ b/drivers/gpu/drm/exynos/exynos_dp.c @@ -23,6 +23,7 @@ #include <drm/drmP.h> #include <drm/drm_crtc.h> #include <drm/drm_crtc_helper.h> +#include <drm/drm_of.h> #include <drm/drm_panel.h> #include <drm/bridge/analogix_dp.h> @@ -211,8 +212,11 @@ static const struct component_ops exynos_dp_ops = { static int exynos_dp_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; - struct device_node *np = NULL, *endpoint = NULL; + struct device_node *np; struct exynos_dp_device *dp; + struct drm_panel *panel; + struct drm_bridge *bridge; + int ret; dp = devm_kzalloc(&pdev->dev, sizeof(struct exynos_dp_device), GFP_KERNEL); @@ -236,28 +240,13 @@ static int exynos_dp_probe(struct platform_device *pdev) goto out; } - endpoint = of_graph_get_next_endpoint(dev->of_node, NULL); - if (endpoint) { - np = of_graph_get_remote_port_parent(endpoint); - if (np) { - /* The remote port can be either a panel or a bridge */ - dp->plat_data.panel = of_drm_find_panel(np); - if (!dp->plat_data.panel) { - dp->ptn_bridge = of_drm_find_bridge(np); - if (!dp->ptn_bridge) { - of_node_put(np); - return -EPROBE_DEFER; - } - } - of_node_put(np); - } else { - DRM_ERROR("no remote endpoint device node found.\n"); - return -EINVAL; - } - } else { - DRM_ERROR("no port endpoint subnode found.\n"); - return -EINVAL; - } + ret = drm_of_find_panel_or_bridge(dev->of_node, 0, 0, &panel, &bridge); + if (ret) + return ret; + + /* The remote port can be either a panel or a bridge */ + dp->plat_data.panel = panel; + dp->ptn_bridge = bridge; out: return component_add(&pdev->dev, &exynos_dp_ops); diff --git a/drivers/gpu/drm/exynos/exynos_drm_dpi.c b/drivers/gpu/drm/exynos/exynos_drm_dpi.c index 3aab71a485ba..63abcd280fa0 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dpi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dpi.c @@ -163,27 +163,13 @@ enum { FIMD_PORT_WRB, }; -static struct device_node *exynos_dpi_of_find_panel_node(struct device *dev) -{ - struct device_node *np, *ep; - - ep = of_graph_get_endpoint_by_regs(dev->of_node, FIMD_PORT_RGB, 0); - if (!ep) - return NULL; - - np = of_graph_get_remote_port_parent(ep); - of_node_put(ep); - - return np; -} - static int exynos_dpi_parse_dt(struct exynos_dpi *ctx) { struct device *dev = ctx->dev; struct device_node *dn = dev->of_node; struct device_node *np; - ctx->panel_node = exynos_dpi_of_find_panel_node(dev); + ctx->panel_node = of_graph_get_remote_node(dn, FIMD_PORT_RGB, 0); np = of_get_child_by_name(dn, "display-timings"); if (np) { diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c index 6d4da2f0932d..fc4fda738906 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c @@ -1659,17 +1659,10 @@ static int exynos_dsi_parse_dt(struct exynos_dsi *dsi) of_node_put(ep); - ep = of_graph_get_next_endpoint(node, NULL); - if (!ep) { - ret = -EINVAL; - goto end; - } + dsi->bridge_node = of_graph_get_remote_node(node, DSI_PORT_OUT, 0); + if (!dsi->bridge_node) + return -EINVAL; - dsi->bridge_node = of_graph_get_remote_port_parent(ep); - if (!dsi->bridge_node) { - ret = -EINVAL; - goto end; - } end: of_node_put(ep); diff --git a/drivers/gpu/drm/exynos/exynos_drm_mic.c b/drivers/gpu/drm/exynos/exynos_drm_mic.c index 2ef43d403eaa..e45720543a45 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_mic.c +++ b/drivers/gpu/drm/exynos/exynos_drm_mic.c @@ -229,29 +229,6 @@ static void mic_set_reg_on(struct exynos_mic *mic, bool enable) writel(reg, mic->reg + MIC_OP); } -static struct device_node *get_remote_node(struct device_node *from, int reg) -{ - struct device_node *endpoint = NULL, *remote_node = NULL; - - endpoint = of_graph_get_endpoint_by_regs(from, reg, -1); - if (!endpoint) { - DRM_ERROR("mic: Failed to find remote port from %s", - from->full_name); - goto exit; - } - - remote_node = of_graph_get_remote_port_parent(endpoint); - if (!remote_node) { - DRM_ERROR("mic: Failed to find remote port parent from %s", - from->full_name); - goto exit; - } - -exit: - of_node_put(endpoint); - return remote_node; -} - static int parse_dt(struct exynos_mic *mic) { int ret = 0, i, j; @@ -263,7 +240,7 @@ static int parse_dt(struct exynos_mic *mic) * The first node must be for decon and the second one must be for dsi. */ for (i = 0, j = 0; i < NUM_ENDPOINTS; i++) { - remote_node = get_remote_node(mic->dev->of_node, i); + remote_node = of_graph_get_remote_node(mic->dev->of_node, i, 0); if (!remote_node) { ret = -EPIPE; goto exit; |