From b086c3e1c07123735c46c4ebae2b7020ccb74f77 Mon Sep 17 00:00:00 2001 From: Sandy Huang Date: Thu, 20 Dec 2018 11:11:52 +0800 Subject: [PATCH] drm/panel: panel-simple: add support multi panel timing Change-Id: I3c0da51de1d9ea1fb20f88a0453057bac818686e Signed-off-by: Sandy Huang --- drivers/gpu/drm/panel/panel-simple.c | 36 ++++++++++++++++++++---------------- 1 file changed, 20 insertions(+), 16 deletions(-) diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c index 1c4a2ca..62dc751 100644 --- a/drivers/gpu/drm/panel/panel-simple.c +++ b/drivers/gpu/drm/panel/panel-simple.c @@ -474,8 +474,8 @@ static int panel_simple_of_get_native_mode(struct panel_simple *panel) struct drm_connector *connector = panel->base.connector; struct drm_device *drm = panel->base.drm; struct drm_display_mode *mode; - struct device_node *timings_np; - int ret; + struct device_node *timings_np, *child_np; + int ret, num_modes = 0; timings_np = of_get_child_by_name(panel->dev->of_node, "display-timings"); @@ -484,24 +484,28 @@ static int panel_simple_of_get_native_mode(struct panel_simple *panel) return 0; } - of_node_put(timings_np); - mode = drm_mode_create(drm); - if (!mode) - return 0; + for_each_available_child_of_node(timings_np, child_np) { + mode = drm_mode_create(drm); + if (!mode) + return 0; + + ret = of_get_drm_display_mode(panel->dev->of_node, mode, num_modes); + if (ret) { + dev_dbg(panel->dev, "failed to find dts display timings\n"); + drm_mode_destroy(drm, mode); + return 0; + } - ret = of_get_drm_display_mode(panel->dev->of_node, mode, - OF_USE_NATIVE_MODE); - if (ret) { - dev_dbg(panel->dev, "failed to find dts display timings\n"); - drm_mode_destroy(drm, mode); - return 0; + drm_mode_set_name(mode); + mode->type |= DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; + drm_mode_probed_add(connector, mode); + + num_modes++; } - drm_mode_set_name(mode); - mode->type |= DRM_MODE_TYPE_PREFERRED; - drm_mode_probed_add(connector, mode); + of_node_put(timings_np); - return 1; + return num_modes; } static int panel_simple_regulator_enable(struct drm_panel *panel) -- 2.7.4