diff mbox

[v3,21/24] drm: of: Export drm_crtc_port_mask()

Message ID 20180625120304.7543-22-jernej.skrabec@siol.net (mailing list archive)
State New, archived
Headers show

Commit Message

Jernej Škrabec June 25, 2018, 12:03 p.m. UTC 
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(-)

Comments

Chen-Yu Tsai June 28, 2018, 2:32 a.m. UTC | #1 
On Mon, Jun 25, 2018 at 8:03 PM, Jernej Skrabec <jernej.skrabec@siol.net> wrote:
> 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>

Reviewed-by: Chen-Yu Tsai <wens@csie.org>
diff mbox

Patch

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)
 {