mbox series

[v4,0/5] media: i2c: imx214: Add support for more clock frequencies

Message ID 20250524-imx214_ccs_pll-v4-0-f7dc22e5255b@apitzsch.eu
Headers show
Series media: i2c: imx214: Add support for more clock frequencies | expand

Message

André Apitzsch via B4 Relay May 24, 2025, 9:14 a.m. UTC 
The imx214 driver currently supports only a 24 MHz external clock. But
there are devices, like Qualcomm-MSM8916-based phones, which cannot
provide this frequency. To make the sensor usable by those devices, add
support for additional clock frequencies.

This series supersedes
https://lore.kernel.org/linux-media/20250308-imx214_clk_freq-v1-0-467a4c083c35@apitzsch.eu/

Signed-off-by: André Apitzsch <git@apitzsch.eu>
---
Changes in v4:
- Add missing colon to error message
- Add A-b, R-b tags
- Link to v3: https://lore.kernel.org/r/20250521-imx214_ccs_pll-v3-0-bfb4a2b53d14@apitzsch.eu

Changes in v3:
- Limit range of pll_ip_clk_freq_hz (Sakari)
- Drop unneeded 'ret'
- Use pll.pixel_rate_csi for bit rate calculation
- Add patch that deprecates the clock-frequency property
- Link to v2: https://lore.kernel.org/r/20250505-imx214_ccs_pll-v2-0-f50452061ff1@apitzsch.eu

Changes in v2:
- Add A-b tags
- Switch to v4l2_ctrl_s_ctrl_int64() to acquire the control handler mutex
- Add error handling for v4l2_ctrl_s_ctrl_int64() and
  imx214_pll_update()
- Replace "read clock frequency from dt" patch by "remove hard-coded
  external clock frequency" patch
- Link to v1:
  https://lore.kernel.org/r/20250415-imx214_ccs_pll-v1-0-d3d7748e5fbd@apitzsch.eu

---
André Apitzsch (5):
      media: i2c: imx214: Reorder imx214_parse_fwnode call
      media: i2c: imx214: Prepare for variable clock frequency
      media: i2c: imx214: Make use of CCS PLL calculator
      media: dt-bindings: sony,imx214: Deprecate property clock-frequency
      media: i2c: imx214: Remove hard-coded external clock frequency

 .../devicetree/bindings/media/i2c/sony,imx214.yaml |  29 ++-
 drivers/media/i2c/Kconfig                          |   1 +
 drivers/media/i2c/imx214.c                         | 263 ++++++++++++++++-----
 3 files changed, 217 insertions(+), 76 deletions(-)
---
base-commit: 176e917e010cb7dcc605f11d2bc33f304292482b
change-id: 20250406-imx214_ccs_pll-e4aed0e9e532

Best regards,