lwn.git/drivers/media/i2c/ds90ub953.c, branch docs-mw

media: i2c: ds90ub953: Use v4l2_subdev_get_frame_desc_passthrough

2026-03-11T00:05:31+00:00

Use the new v4l2_subdev_get_frame_desc_passthrough helper for .get_frame_desc. Signed-off-by: Tomi Valkeinen Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab

media: i2c: ds90ub953: convert from round_rate() to determine_rate()

2025-11-03T14:58:42+00:00

The round_rate() clk ops is deprecated, so migrate this driver from round_rate() to determine_rate() using the Coccinelle semantic patch on the cover letter of this series. Signed-off-by: Brian Masney Reviewed-by: Tomi Valkeinen Signed-off-by: Hans Verkuil

media: i2c: ds90ub953: Use %pe format specifier

2025-10-17T09:31:15+00:00

The %pe format specifier is designed to print error pointers. It prints a symbolic error name (eg. -EINVAL) and it makes the code simpler by omitting PTR_ERR(). This patch fixes this cocci report: ./i2c/ds90ub953.c:779:44-51: WARNING: Consider using %pe to print PTR_ERR() Signed-off-by: Ricardo Ribalda Acked-by: Sakari Ailus Signed-off-by: Hans Verkuil

treewide: rename GPIO set callbacks back to their original names

2025-08-07T08:07:06+00:00

The conversion of all GPIO drivers to using the .set_rv() and .set_multiple_rv() callbacks from struct gpio_chip (which - unlike their predecessors - return an integer and allow the controller drivers to indicate failures to users) is now complete and the legacy ones have been removed. Rename the new callbacks back to their original names in one sweeping change. Signed-off-by: Bartosz Golaszewski

media: i2c: ds90ub953: Drop check on number of active routes

2025-06-30T07:06:21+00:00

The subdev core now limits the number of active routes to V4L2_FRAME_DESC_ENTRY_MAX. Drop the duplicated check in the ds90ub953 driver. Signed-off-by: Laurent Pinchart Reviewed-by: Jacopo Mondi Reviewed-by: Tomi Valkeinen Reviewed-by: Lad Prabhakar Signed-off-by: Sakari Ailus Signed-off-by: Hans Verkuil

media: i2c: ds90ub953: use new GPIO line value setter callbacks

2025-06-17T08:35:13+00:00

struct gpio_chip now has callbacks for setting line values that return an integer, allowing to indicate failures. Convert the driver to using them. Signed-off-by: Bartosz Golaszewski Signed-off-by: Hans Verkuil

Merge tag 'i2c-for-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

2025-05-30T17:07:53+00:00

Pull i2c updates from Wolfram Sang: "Core updates: - move towards using the 'fwnode' handle instead of 'of_node' (meaning 'of_node' even gets removed from i2c_board_info) - add support for Write Disable-aware SPD eeproms - minor stuff (use new helpers, typo fixes) i2c-atr (address translator) updates: - support per-channel alias pools - added support for dynamic address translation (also adds FPC202 driver as its user) - add 'static' and 'passthrough' flags Cleanups and refactorings - Many drivers switched to dev_err_probe() - Generic cleanups applied to designware, iproc, ismt, mlxbf, npcm7xx, qcom-geni, pasemi, and thunderx - davinci: declare I2C mangling support among I2C features - designware: clean up DTS handling - designware: fix PM runtime on driver unregister - imx: improve error logging during probe - lpc2k: improve checks in probe error path - xgene-slimpro: improve PCC shared memory handling - pasemi: improve error handling in reset, smbus clear, timeouts - tegra: validate buffer length during transfers - wmt: convert binding to YAML format Improvements and extended support: - microchip-core: add SMBus support - mlxbf: add support for repeated start in block transfers - mlxbf: improve timer configuration - npcm: attempt clock toggle recovery before failing init - octeon: add support for block mode operations - pasemi: add support for unjam device feature - riic: add support for bus recovery New device support: - MediaTek Dimensity 1200 (MT6893) - Sophgo SG2044 - Renesas RZ/V2N (R9A09G056) - Rockchip RK3528 - AMD ISP (new driver)" * tag 'i2c-for-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (89 commits) i2c: Use str_read_write() helper i2c: mlxbf: avoid 64-bit division i2c: viai2c-wmt: Replace dev_err() with dev_err_probe() in probe function i2c: designware: Don't warn about missing get_clk_rate_khz i2c: designware: Invoke runtime suspend on quick slave re-registration i2c-mlxbf: Improve I2C bus timing configuration i2c-mlxbf: Add repeated start condition support i2c: xgene-slimpro: Replace dev_err() with dev_err_probe() in probe function dt-bindings: i2c: i2c-wmt: Convert to YAML i2c: microchip-corei2c: add smbus support i2c: mlxbf: Allow build with COMPILE_TEST i2c: I2C_DESIGNWARE_AMDISP should depend on DRM_AMD_ISP i2c: atr: add passthrough flag i2c: atr: add static flag i2c: atr: allow replacing mappings in attach_addr() i2c: atr: deduplicate logic in attach_addr() i2c: atr: do not create mapping in detach_addr() i2c: atr: split up i2c_atr_get_mapping_by_addr() i2c: atr: find_mapping() -> get_mapping() i2c: atr: Fix lockdep for nested ATRs ...

media: i2c: ds90ub9x3: Remove (explicitly) unused header

2025-05-06T11:06:29+00:00

The fwnode.h is not supposed to be used by the drivers as it has the definitions for the core parts for different device property provider implementations. Drop it. Note, that fwnode API for drivers is provided in property.h which is included here. Signed-off-by: Andy Shevchenko Reviewed-by: Tomi Valkeinen Signed-off-by: Sakari Ailus Signed-off-by: Hans Verkuil

media: i2c: ds90ub953: Move reg defines to a header file

2025-04-25T08:15:10+00:00

Move UB953 register defines to a header file. This is done so that the deserializer driver can access the defines, and do some early serializer configuration. Signed-off-by: Tomi Valkeinen Signed-off-by: Jai Luthra Signed-off-by: Sakari Ailus Signed-off-by: Hans Verkuil

media: i2c: ds90ub953: Speed-up I2C watchdog timer

2025-04-25T08:15:06+00:00

On the I2C bus for remote clients (sensors), by default the watchdog timer expires in 1s. To allow for a quicker system bring-up time, TI recommends to speed it up to 50us [1]. [1]: Section 7.3.1.1 - https://www.ti.com/lit/gpn/ds90ub953-q1 Signed-off-by: Jai Luthra Signed-off-by: Sakari Ailus Signed-off-by: Hans Verkuil