target/linux/bcm27xx/patches-6.1/950-0822-drivers-media-imx296-Updated-imx296-driver-for-exter.patch

   1 From e1b03ea9e84320e6bf36a1486abaebbceadd7fc7 Mon Sep 17 00:00:00 2001
   2 From: Ben Benson <ben.benson@raspberrypi.com>
   3 Date: Fri, 21 Jul 2023 15:59:51 +0100
   4 Subject: [PATCH] drivers: media: imx296: Updated imx296 driver for external
   5  trigger
   6
   7 Updated imx296 driver to support external trigger mode via XTR pin.
   8 Added module parameter to control this mode.
   9
  10 Signed-off-by: Ben Benson <ben.benson@raspberrypi.com>
  11 ---
  12  drivers/media/i2c/imx296.c | 10 ++++++++++
  13  1 file changed, 10 insertions(+)
  14
  15 --- a/drivers/media/i2c/imx296.c
  16 +++ b/drivers/media/i2c/imx296.c
  17 @@ -20,6 +20,10 @@
  18  #include <media/v4l2-fwnode.h>
  19  #include <media/v4l2-subdev.h>
  20
  21 +static int trigger_mode;
  22 +module_param(trigger_mode, int, 0644);
  23 +MODULE_PARM_DESC(trigger_mode, "Set trigger mode: 0=default, 1=XTRIG");
  24 +
  25  #define IMX296_PIXEL_ARRAY_WIDTH                       1456
  26  #define IMX296_PIXEL_ARRAY_HEIGHT                      1088
  27
  28 @@ -645,6 +649,12 @@ static int imx296_stream_on(struct imx29
  29
  30         imx296_write(sensor, IMX296_CTRL00, 0, &ret);
  31         usleep_range(2000, 5000);
  32 +
  33 +       if (trigger_mode == 1) {
  34 +               imx296_write(sensor, IMX296_CTRL0B, IMX296_CTRL0B_TRIGEN, &ret);
  35 +               imx296_write(sensor, IMX296_LOWLAGTRG,  IMX296_LOWLAGTRG_FAST, &ret);
  36 +       }
  37 +
  38         imx296_write(sensor, IMX296_CTRL0A, 0, &ret);
  39
  40         /* vflip and hflip cannot change during streaming */