Function is useful when drm_of_find_possible_crtcs() can't be used and custom parsing is needed. This can happen for example when there is a node with multiple muxes between crtc and encoder.
Signed-off-by: Jernej Skrabec jernej.skrabec@siol.net --- drivers/gpu/drm/drm_of.c | 5 +++-- include/drm/drm_of.h | 8 ++++++++ 2 files changed, 11 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/drm_of.c b/drivers/gpu/drm/drm_of.c index 1fe122461298..50e738857258 100644 --- a/drivers/gpu/drm/drm_of.c +++ b/drivers/gpu/drm/drm_of.c @@ -22,8 +22,8 @@ static void drm_release_of(struct device *dev, void *data) * Given a port OF node, return the possible mask of the corresponding * CRTC within a device's list of CRTCs. Returns zero if not found. */ -static uint32_t drm_crtc_port_mask(struct drm_device *dev, - struct device_node *port) +uint32_t drm_crtc_port_mask(struct drm_device *dev, + struct device_node *port) { unsigned int index = 0; struct drm_crtc *tmp; @@ -37,6 +37,7 @@ static uint32_t drm_crtc_port_mask(struct drm_device *dev,
return 0; } +EXPORT_SYMBOL(drm_crtc_port_mask);
/** * drm_of_find_possible_crtcs - find the possible CRTCs for an encoder port diff --git a/include/drm/drm_of.h b/include/drm/drm_of.h index b93c239afb60..a61fd77e46ba 100644 --- a/include/drm/drm_of.h +++ b/include/drm/drm_of.h @@ -17,6 +17,8 @@ struct drm_bridge; struct device_node;
#ifdef CONFIG_OF +uint32_t drm_crtc_port_mask(struct drm_device *dev, + struct device_node *port); uint32_t drm_of_find_possible_crtcs(struct drm_device *dev, struct device_node *port); void drm_of_component_match_add(struct device *master, @@ -34,6 +36,12 @@ int drm_of_find_panel_or_bridge(const struct device_node *np, struct drm_panel **panel, struct drm_bridge **bridge); #else +static inline uint32_t drm_crtc_port_mask(struct drm_device *dev, + struct device_node *port) +{ + return 0; +} + static inline uint32_t drm_of_find_possible_crtcs(struct drm_device *dev, struct device_node *port) {