[PATCH AUTOSEL for 4.9 057/219] [media] media: i2c/soc_camera: fix ov6650 sensor getting wrong clock

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From: Janusz Krzysztofik <jmkrzyszt@xxxxxxxxx>

[ Upstream commit 54449af0e0b2ea43a8166611c95b730c850c3184 ]

After changes to v4l2_clk API introduced in v4.1 by commits a37462b919
'[media] V4L: remove clock name from v4l2_clk API' and 4f528afcfb
'[media] V4L: add CCF support to the v4l2_clk API', ov6650 sensor
stopped responding because v4l2_clk_get(), still called with
depreciated V4L2 clock name "mclk", started to return respective CCF
clock instead of the V4l2 one registered by soc_camera. Fix it by
calling v4l2_clk_get() with NULL clock name.

Created and tested on Amstrad Delta against Linux-4.7-rc3 with
omap1_camera fixes.

Signed-off-by: Janusz Krzysztofik <jmkrzyszt@xxxxxxxxx>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@xxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
---
 drivers/media/i2c/soc_camera/ov6650.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/i2c/soc_camera/ov6650.c b/drivers/media/i2c/soc_camera/ov6650.c
index 4bf2995e1cb8..8f85910eda5d 100644
--- a/drivers/media/i2c/soc_camera/ov6650.c
+++ b/drivers/media/i2c/soc_camera/ov6650.c
@@ -1033,7 +1033,7 @@ static int ov6650_probe(struct i2c_client *client,
 	priv->code	  = MEDIA_BUS_FMT_YUYV8_2X8;
 	priv->colorspace  = V4L2_COLORSPACE_JPEG;
 
-	priv->clk = v4l2_clk_get(&client->dev, "mclk");
+	priv->clk = v4l2_clk_get(&client->dev, NULL);
 	if (IS_ERR(priv->clk)) {
 		ret = PTR_ERR(priv->clk);
 		goto eclkget;
-- 
2.14.1




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