Thread (63 messages) 63 messages, 8 authors, 2018-06-25
STALE2905d
Revisions (2)
  1. v2 current
  2. v3 [diff vs current]

[PATCH v2 24/27] drm: of: Export drm_crtc_port_mask()

From: Jernej Skrabec <hidden>
Date: 2018-06-12 20:02:57
Also in: dri-devel, linux-clk, linux-devicetree, lkml
Subsystem: drm drivers, drm drivers and misc gpu patches, the rest · Maintainers: David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Linus Torvalds

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 <redacted>
---
 drivers/gpu/drm/drm_of.c | 4 ++--
 include/drm/drm_of.h     | 8 ++++++++
 2 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/drm_of.c b/drivers/gpu/drm/drm_of.c
index 1fe122461298..2e9cea3287b2 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;
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)
 {
-- 
2.17.1
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