Unverified Commit 8b5f7a62 authored by Jernej Skrabec's avatar Jernej Skrabec Committed by Maxime Ripard
Browse files

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: default avatarSean Paul <seanpaul@chromium.org>
Signed-off-by: default avatarJernej Skrabec <jernej.skrabec@siol.net>
[maxime: change the function to have a consistent prefix]
Signed-off-by: default avatarMaxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180625120304.7543-22-jernej.skrabec@siol.net
parent b46e2c9f

drivers/gpu/drm/drm_of.c

+5 −4
Original line number Diff line number Diff line
@@ -15,14 +15,14 @@ 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,

uint32_t drm_of_crtc_port_mask(struct drm_device *dev,

			    struct device_node *port)

{

	unsigned int index = 0;
@@ -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);

	}

include/drm/drm_of.h

+8 −0
Original line number Diff line number Diff line
@@ -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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