linux/drivers/media/i2c, branch v5.19-rc2

media: ov7251: fix mutex lock unbalance

2022-05-17T07:54:26Z

As reported by smatch/sparse: drivers/media/i2c/ov7251.c:1381 ov7251_s_stream() warn: inconsistent returns '&ov7251->lock'. Locked on : 1381 Unlocked on: 1377 There's a lock unbalance at this routine, as it keeps the lock on certain errors. Fix it. Signed-off-by: Mauro Carvalho Chehab

media: i2c: Add vblank control to ov7251 driver

2022-05-17T07:54:06Z

Add a vblank control to the ov7251 driver. Signed-off-by: Daniel Scally Acked-by: Andy Shevchenko Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab

media: i2c: Add hblank control to ov7251

2022-05-17T07:53:35Z

Add a hblank control to the ov7251 driver. This necessitates setting a default mode, for which I am simply picking the first available. Signed-off-by: Daniel Scally Acked-by: Andy Shevchenko Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab

media: i2c: add ov7251_init_ctrls()

2022-05-17T07:53:15Z

V4L2 controls initialisation takes up a sizeable portion of the driver's .probe() function. To keep things neat, move it to a dedicated function. Signed-off-by: Daniel Scally Acked-by: Andy Shevchenko Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab

media: i2c: Extend .get_selection() for ov7251

2022-05-17T07:52:52Z

Extend the .get_selection() callback to support other values for sel->target, primarily to satisfy libcamera's requirements. Signed-off-by: Daniel Scally Acked-by: Andy Shevchenko Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab

media: i2c: Remove .s_power() from ov7251

2022-05-17T07:51:59Z

The .s_power() callback is deprecated, and now that we have pm_runtime functionality in the driver there's no further use for it. Delete the function. Signed-off-by: Daniel Scally Acked-by: Andy Shevchenko Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab

media: i2c: Add pm_runtime support to ov7251

2022-05-17T07:51:35Z

Add pm_runtime support to the ov7251 driver. Signed-off-by: Daniel Scally Acked-by: Andy Shevchenko Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab

media: i2c: Add ov7251_detect_chip()

2022-05-17T07:50:56Z

.probe() is quite busy for this driver; make it cleaner by moving the chip verification to a dedicated function. Signed-off-by: Daniel Scally Acked-by: Andy Shevchenko Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab

media: i2c: Add support for new frequencies to ov7251

2022-05-17T07:50:30Z

The OV7251 sensor is used as the IR camera sensor on the Microsoft Surface line of tablets; this provides a 19.2MHz external clock, and the Windows driver for this sensor configures a 319.2MHz link freq to the CSI-2 receiver. Add the ability to support those rate to the driver by defining a new set of PLL configs. Signed-off-by: Daniel Scally Acked-by: Andy Shevchenko Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab

media: i2c: Add ov7251_pll_configure()

2022-05-17T07:49:54Z

Rather than having the pll settings hidden inside mode blobs, define them in structs and use a dedicated function to set them. This makes it simpler to extend the driver to support other frequencies for both the external clock and desired link frequency. Signed-off-by: Daniel Scally Acked-by: Andy Shevchenko Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab