From 5f3e7503b97b3d068304ac8bb74faa10b804b24d Mon Sep 17 00:00:00 2001 From: Derek Basehore Date: Fri, 14 Aug 2020 00:56:06 +0300 Subject: drm/panel: Add helper for reading DT rotation This adds a helper function for reading the rotation (panel orientation) from the device tree. Reviewed-by: Sam Ravnborg Tested-by: Dmitry Osipenko Signed-off-by: Derek Basehore Signed-off-by: Dmitry Osipenko Signed-off-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20200813215609.28643-2-digetx@gmail.com --- include/drm/drm_panel.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'include/drm') diff --git a/include/drm/drm_panel.h b/include/drm/drm_panel.h index 45a1b5a2275d..33605c3f0eba 100644 --- a/include/drm/drm_panel.h +++ b/include/drm/drm_panel.h @@ -35,6 +35,8 @@ struct drm_device; struct drm_panel; struct display_timing; +enum drm_panel_orientation; + /** * struct drm_panel_funcs - perform operations on a given panel * @@ -188,11 +190,19 @@ int drm_panel_get_modes(struct drm_panel *panel, struct drm_connector *connector #if defined(CONFIG_OF) && defined(CONFIG_DRM_PANEL) struct drm_panel *of_drm_find_panel(const struct device_node *np); +int of_drm_get_panel_orientation(const struct device_node *np, + enum drm_panel_orientation *orientation); #else static inline struct drm_panel *of_drm_find_panel(const struct device_node *np) { return ERR_PTR(-ENODEV); } + +static inline int of_drm_get_panel_orientation(const struct device_node *np, + enum drm_panel_orientation *orientation) +{ + return -ENODEV; +} #endif #if IS_ENABLED(CONFIG_DRM_PANEL) && (IS_BUILTIN(CONFIG_BACKLIGHT_CLASS_DEVICE) || \ -- cgit v1.2.3