From 5dbcf319b283276468a52feafefeb5802d87cb8a Mon Sep 17 00:00:00 2001 From: Russell King Date: Sun, 15 Jun 2014 11:11:10 +0100 Subject: [PATCH] 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: Russell King --- drivers/gpu/drm/i2c/tda998x_drv.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c b/drivers/gpu/drm/i2c/tda998x_drv.c index d4762799351d..4dcf47417aee 100644 --- a/drivers/gpu/drm/i2c/tda998x_drv.c +++ b/drivers/gpu/drm/i2c/tda998x_drv.c @@ -25,6 +25,7 @@ #include #include #include +#include #include #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) -- 2.20.1