[PATCH v4 0/2] media: i2c: Add Samsung S5KJN5 image sensor

[Wenmeng Liu]

This series adds support for the Samsung S5KJN5, a 50 MP 10-bit RAW MIPI
CSI-2 image sensor.

This is implemented as a separate driver rather than extending the existing
s5kjn1 driver. Although both sensors belong to the same family, they are
different parts with different register maps and power supplies.
Combining support for both devices in a single driver would result in very
little shared code while introducing separate initialization and control
paths, so keeping them as independent drivers is cleaner.

Power Supplies:
| Power Rail | S5KJN5 | S5KJN1 |
|------------|--------|--------|
| VDDD       | 1.0 V  | 1.0 V  |
| VDDA       | 2.2 V  | 2.8 V  |
| VDDIO      | 1.8 V  | 1.8 V  |
| VDDIO1p2   | 1.2 V  | -      |
| VDDM       | 1.0 V  | -      |

Tested on the Qualcomm Hawi qrd board.

---
Changes in v4:
- Removed AGAIN/DGAIN _DEFAULT and _STEP macros, inlined min/step=1.
- Removed S5KJN5_NUM_SUPPLIES, use ARRAY_SIZE(s5kjn5_supply_names).
- Reordered struct s5kjn5_init_op to save padding.
- power_on(): removed goto, single error path handled inline.
- s_ctrl(): checked __v4l2_ctrl_modify_range() return; removed the two
obvious comments.
- init_controls(): moved v4l2_fwnode_device_parse() before the handler
init; return hdlr->error directly.
- Removed the redundant single-subdev .link_validate media entity op.
- dev_info() -> dev_dbg() for the detection message.
- Added blank lines before the probe() error labels.
- Added get_selection (CROP / CROP_DEFAULT / CROP_BOUNDS / NATIVE_SIZE)
reporting the full 8192x6144 pixel array, per the libcamera sensor
driver requirements.
- Link to v3: https://lore.kernel.org/r/20260806-sk5jn5-v3-0-0b3ac1eadf8a@xxxxxxxxxxxxxxxx

Changes in v3:
- Add vddm-supply to the regulator list.
- Drop GBRG from Kconfig, file header and MODULE_DESCRIPTION. -- Vladimir
- Compute pixel_rate at runtime from the link frequency instead of
  storing it in the mode. -- Vladimir
- Split the init sequence into two tables around the 5 ms delay and
  drop the .delay_us field/handling. -- Vladimir
- Remove unused v4l2_ctrl pointers and the unused <media/v4l2-device.h>.
  -- Vladimir
- Move all control flag setting to the end of s5kjn5_init_controls(). -- Vladimir
- Fix s_ctrl() to apply controls when CONFIG_PM is disabled
  (pm_runtime_get_if_active() returns -EINVAL).
- Use S5KJN5_CHIP_ID in the init sequence; reword the clock-rate error;
  minor style fixes (reverse x-mas tree, ret init).
- Link to v2: https://lore.kernel.org/r/20260724-sk5jn5-v2-0-871d3b9a2e47@xxxxxxxxxxxxxxxx

Changes in v2:
- dt-bindings: drop the "T:" MAINTAINERS entry -- Krzysztof
- Rename vdda2 -> vddio1p2; fix supply descriptions (vddio = 1.8 V VDD18,
  vddio1p2 = 1.2 V VDDIO12) -- Wenmeng
- Link to v1: https://lore.kernel.org/r/20260717-sk5jn5-v1-0-da610d7fd494@xxxxxxxxxxxxxxxx

---
Wenmeng Liu (2):
      dt-bindings: media: i2c: Add Samsung S5KJN5 image sensor
      media: i2c: Add Samsung S5KJN5 image sensor driver

 .../bindings/media/i2c/samsung,s5kjn5.yaml         |  117 +
 MAINTAINERS                                        |    7 +
 drivers/media/i2c/Kconfig                          |   11 +
 drivers/media/i2c/Makefile                         |    1 +
 drivers/media/i2c/s5kjn5.c                         | 2861 ++++++++++++++++++++
 5 files changed, 2997 insertions(+)
---
base-commit: 68142f986ff04b2b70b31db00f719bf690f64a9a
change-id: 20260716-sk5jn5-be432bc99a98

Best regards,
-- 
Wenmeng Liu <wenmeng.liu@xxxxxxxxxxxxxxxx>