Commit 9f6da5d4 authored Apr 26, 2019 by Philipp Zabel Committed by Dmitry Torokhov Apr 26, 2019

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>

parent bd21d847

drivers/input/rmi4/rmi_f54.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -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));