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Subject[PATCH v3 21/24] drm: of: Export drm_crtc_port_mask()
Date
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)
{
--
2.18.0
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