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Input: synaptics-rmi4 - fill initial format 

The driver doesn't set an initial video format until s_input is called:

  $ v4l2-ctl -d /dev/v4l-touch0 --get-input
  Video input : 0 (Normalized 16-Bit Image: ok)
  $ v4l2-ctl -d /dev/v4l-touch0 --get-fmt-video
  	Width/Height      : 0/0
  	Pixel Format      : ''
  	[...]
  $ v4l2-ctl -d /dev/v4l-touch0 --set-input 0
  Video input set to 0 (Normalized 16-Bit Image: Touch, ok)
  $ v4l2-ctl -d /dev/v4l-touch0 --get-fmt-video
  	Width/Height      : 71/40
  	Pixel Format      : 'TD16'
  	[...]

To fix this, initialize the video format to input 0 during probe.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Philipp Zabel 2019-04-26 17:31:32 -07:00 committed by Dmitry Torokhov
parent bd21d84792
commit 9f6da5d42d
1 changed files with 1 additions and 0 deletions
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1
drivers/input/rmi4/rmi_f54.c
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@ -692,6 +692,7 @@ static int rmi_f54_probe(struct rmi_function *fn)
return -ENOMEM;
rmi_f54_create_input_map(f54);
rmi_f54_set_input(f54, 0);
/* register video device */
strlcpy(f54->v4l2.name, F54_NAME, sizeof(f54->v4l2.name));