From: Philipp Zabel <p.zabel@pengutronix.de>
Date: Sat, 27 Apr 2019 00:31:32 +0000 (-0700)
Subject: Input: synaptics-rmi4 - fill initial format
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=9f6da5d42d1ecf7fcc042058a453fe65864fadb0;p=openwrt%2Fstaging%2Fblogic.git

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>
---

diff --git a/drivers/input/rmi4/rmi_f54.c b/drivers/input/rmi4/rmi_f54.c
index a6f515bcab22..9ccf7ee0fc67 100644
--- a/drivers/input/rmi4/rmi_f54.c
+++ b/drivers/input/rmi4/rmi_f54.c
@@ -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));