From 8b5f7a62464a24cb83d6290c01d6cf9c8871774a Mon Sep 17 00:00:00 2001
From: Jernej Skrabec <jernej.skrabec@siol.net>
Date: Mon, 25 Jun 2018 14:03:01 +0200
Subject: [PATCH] drm: of: Export and rename drm_crtc_port_mask()
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.
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
[maxime: change the function to have a consistent prefix]
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180625120304.7543-22-jernej.skrabec@siol.net
---
drivers/gpu/drm/drm_of.c | 9 +++++----
include/drm/drm_of.h | 8 ++++++++
2 files changed, 13 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/drm_of.c b/drivers/gpu/drm/drm_of.c
index 1fe122461298e..3b8c7a6a5720d 100644
--- a/drivers/gpu/drm/drm_of.c
+++ b/drivers/gpu/drm/drm_of.c
@@ -15,15 +15,15 @@ static void drm_release_of(struct device *dev, void *data)
}
/**
- * drm_crtc_port_mask - find the mask of a registered CRTC by port OF node
+ * drm_of_crtc_port_mask - find the mask of a registered CRTC by port OF node
* @dev: DRM device
* @port: port OF node
*
* 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_of_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_of_crtc_port_mask);
/**
* drm_of_find_possible_crtcs - find the possible CRTCs for an encoder port
@@ -62,7 +63,7 @@ uint32_t drm_of_find_possible_crtcs(struct drm_device *dev,
return 0;
}
- possible_crtcs |= drm_crtc_port_mask(dev, remote_port);
+ possible_crtcs |= drm_of_crtc_port_mask(dev, remote_port);
of_node_put(remote_port);
}
diff --git a/include/drm/drm_of.h b/include/drm/drm_of.h
index b93c239afb608..ead34ab5ca4e9 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_of_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_of_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)
{
--
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