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Commit 5dbcf319 authored by Russell King's avatar Russell King
Browse files

drm/i2c: tda998x: add OF support for finding attached CRTCs 



Add support to find the attached CRTCs via OF using the newly introduced
helper.

Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 97bf6af1

drivers/gpu/drm/i2c/tda998x_drv.c

+12 −1
Original line number Diff line number Diff line
@@ -25,6 +25,7 @@ 
#include <drm/drm_crtc_helper.h>

#include <drm/drm_encoder_slave.h>

#include <drm/drm_edid.h>

#include <drm/drm_of.h>

#include <drm/i2c/tda998x.h>



#define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)
@@ -1515,6 +1516,7 @@ static int tda998x_bind(struct device *dev, struct device *master, void *data) 
	struct i2c_client *client = to_i2c_client(dev);

	struct drm_device *drm = data;

	struct tda998x_priv2 *priv;

	uint32_t crtcs = 0;

	int ret;



	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
@@ -1523,9 +1525,18 @@ static int tda998x_bind(struct device *dev, struct device *master, void *data) 


	dev_set_drvdata(dev, priv);



	if (dev->of_node)

		crtcs = drm_of_find_possible_crtcs(drm, dev->of_node);



	/* If no CRTCs were found, fall back to our old behaviour */

	if (crtcs == 0) {

		dev_warn(dev, "Falling back to first CRTC\n");

		crtcs = 1 << 0;

	}



	priv->base.encoder = &priv->encoder;

	priv->connector.interlace_allowed = 1;

	priv->encoder.possible_crtcs = 1 << 0;

	priv->encoder.possible_crtcs = crtcs;



	ret = tda998x_create(client, &priv->base);

	if (ret)