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path: root/drivers/media/i2c/ds90ub913.c
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2025-06-30media: i2c: ds90ub913: Drop check on number of active routesLaurent Pinchart
The subdev core now limits the number of active routes to V4L2_FRAME_DESC_ENTRY_MAX. Drop the duplicated check in the ds90ub913 driver. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-06-17media: i2c: ds90ub913: use new GPIO line value setter callbacksBartosz Golaszewski
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 <bartosz.golaszewski@linaro.org> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-05-30Merge tag 'i2c-for-6.16-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 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 ...
2025-05-06media: i2c: ds90ub9x3: Remove (explicitly) unused headerAndy Shevchenko
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 <andriy.shevchenko@linux.intel.com> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-04-25media: i2c: ds90ub913: Add error handling to ub913_log_status()Tomi Valkeinen
Add error handling to ub913_log_status(). Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Signed-off-by: Jai Luthra <jai.luthra@ideasonboard.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-04-25media: i2c: ds90ub9xx: Add err parameter to read/write funcsTomi Valkeinen
To make future error handling in the drivers easier, add "int *err" parameter to all the i2c register access functions. It functions the same was as with e.g. CCI reg write/read helpers. This was accomplished with the following semantic patch: @@ identifier FUNC =~ "^ub9.._(rxport_|txport_|ind_)?(read|write|update_bits)(16|_ind)?$"; @@ FUNC(... + , int *err ) { ... int ret; + + if (err && *err) + return *err; ... + if (ret && err) + *err = ret; + return ret; } @@ identifier FUNC =~ "^ub9.._(rxport_|txport_|ind_)?(read|write|update_bits)(16|_ind)?$"; @@ FUNC(... + , NULL ) Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Signed-off-by: Jai Luthra <jai.luthra@ideasonboard.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-04-25media: i2c: ds90ub913: Align ub913_read() with other similar functionsTomi Valkeinen
Adjust the ub913_read() to have similar form than the other similar functions in ub9xx drivers. This makes it easier to deal with all the read/write functions with a semantic patch. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Signed-off-by: Jai Luthra <jai.luthra@ideasonboard.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-04-25media: i2c: ds90ub913: Fix returned fmt from .set_fmt()Tomi Valkeinen
When setting the sink pad's stream format, set_fmt accidentally changes the returned format's code to 'outcode', while the purpose is to only use the 'outcode' for the propagated source stream format. Fixes: c158d0d4ff15 ("media: i2c: add DS90UB913 driver") Cc: stable@vger.kernel.org Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Signed-off-by: Jai Luthra <jai.luthra@ideasonboard.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2025-04-18i2c: support per-channel ATR alias poolsRomain Gantois
Some I2C address translators (ATRs) assign each of their remote peripheral aliases to a specific channel. To properly handle these devices, add support for having separate alias pools for each ATR channel. This is achieved by allowing callers of i2c_atr_add_adapter to pass an optional alias list. If present, this list will be used to populate the channel's alias pool. Otherwise, the common alias pool will be used. Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Signed-off-by: Romain Gantois <romain.gantois@bootlin.com> Acked-by: Andi Shyti <andi.shyti@kernel.org> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
2025-01-25Merge tag 'media/v6.14-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - Sensor driver fixes - remove dead TI wl128x FM radio driver - Add support for the imx462 sensor at the IMX290 binding - V4L2 pixel data transmitter and receiver documentation improvements - Add support for MIPI Discovery and Configuration for C-PHY line orders - imx8-isi fixes and improvements - stm32: dcmipp: add core support for the stm32mp25 - qcom: camss: Add sc7280 support - Various fixes and enhancements * tag 'media/v6.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (152 commits) media: nuvoton: Fix an error check in npcm_video_ece_init() media: dvb-usb-v2: af9035: fix ISO C90 compilation error on af9035_i2c_master_xfer media: platform: rzg2l-cru: rzg2l-video: Fix the comment in rzg2l_cru_start_streaming_vq() media: fix secfeed undefined when filter alloc fail media: dt-bindings: trivial white-space and example cleanup MAINTAINERS: repair file entry in MEDIA DRIVERS FOR STM32 - CSI media: solo6x10: Use const 'struct bin_attribute' callback media: saa7164: Remove unused values staging: media: imx: fix OF node leak in imx_media_add_of_subdevs() media: platform: exynos4-is: Remove unused __is_get_frame_size media: vidtv: Fix a null-ptr-deref in vidtv_mux_stop_thread media: mmp: Bring back registration of the device media: cec: include linux/debugfs.h and linux/seq_file.h where needed Revert "media: qcom: camss: Restructure camss_link_entities" media: venus: Remove unused hfi_core_ping() media: dt-bindings: qcom-venus: Deprecate video-decoder and video-encoder where applicable media: venus: Populate video encoder/decoder nodename entries media: venus: Add support for static video encoder/decoder declarations media: venus: match instance creation and destruction order media: venus: destroy hfi session after m2m_ctx release ...
2024-12-19media: i2c: ds90ub913: Add error handling to ub913_hw_init()Tomi Valkeinen
Add error handling to ub913_hw_init() using a new helper function, ub913_update_bits(). Reported-by: Sakari Ailus <sakari.ailus@linux.intel.com> Closes: https://lore.kernel.org/all/Zv40EQSR__JDN_0M@kekkonen.localdomain/ Reviewed-by: Jai Luthra <jai.luthra@ideasonboard.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2024-12-19media: i2c: ds90ub9x3: Fix extra fwnode_handle_put()Tomi Valkeinen
The ub913 and ub953 drivers call fwnode_handle_put(priv->sd.fwnode) as part of their remove process, and if the driver is removed multiple times, eventually leads to put "overflow", possibly causing memory corruption or crash. The fwnode_handle_put() is a leftover from commit 905f88ccebb1 ("media: i2c: ds90ub9x3: Fix sub-device matching"), which changed the code related to the sd.fwnode, but missed removing these fwnode_handle_put() calls. Cc: stable@vger.kernel.org Fixes: 905f88ccebb1 ("media: i2c: ds90ub9x3: Fix sub-device matching") Reviewed-by: Jai Luthra <jai.luthra@ideasonboard.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2024-12-02module: Convert symbol namespace to string literalPeter Zijlstra
Clean up the existing export namespace code along the same lines of commit 33def8498fdd ("treewide: Convert macro and uses of __section(foo) to __section("foo")") and for the same reason, it is not desired for the namespace argument to be a macro expansion itself. Scripted using git grep -l -e MODULE_IMPORT_NS -e EXPORT_SYMBOL_NS | while read file; do awk -i inplace ' /^#define EXPORT_SYMBOL_NS/ { gsub(/__stringify\(ns\)/, "ns"); print; next; } /^#define MODULE_IMPORT_NS/ { gsub(/__stringify\(ns\)/, "ns"); print; next; } /MODULE_IMPORT_NS/ { $0 = gensub(/MODULE_IMPORT_NS\(([^)]*)\)/, "MODULE_IMPORT_NS(\"\\1\")", "g"); } /EXPORT_SYMBOL_NS/ { if ($0 ~ /(EXPORT_SYMBOL_NS[^(]*)\(([^,]+),/) { if ($0 !~ /(EXPORT_SYMBOL_NS[^(]*)\(([^,]+), ([^)]+)\)/ && $0 !~ /(EXPORT_SYMBOL_NS[^(]*)\(\)/ && $0 !~ /^my/) { getline line; gsub(/[[:space:]]*\\$/, ""); gsub(/[[:space:]]/, "", line); $0 = $0 " " line; } $0 = gensub(/(EXPORT_SYMBOL_NS[^(]*)\(([^,]+), ([^)]+)\)/, "\\1(\\2, \"\\3\")", "g"); } } { print }' $file; done Requested-by: Masahiro Yamada <masahiroy@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://mail.google.com/mail/u/2/#inbox/FMfcgzQXKWgMmjdFwwdsfgxzKpVHWPlc Acked-by: Greg KH <gregkh@linuxfoundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-08-09media: Drop explicit initialization of struct i2c_device_id::driver_data to 0Uwe Kleine-König
These drivers don't use the driver_data member of struct i2c_device_id, so don't explicitly initialize this member. This prepares putting driver_data in an anonymous union which requires either no initialization or named designators. But it's also a nice cleanup on its own. While add it, also remove commas after the sentinel entries. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2023-12-04media: v4l2-subdev: Rename .init_cfg() operation to .init_state()Laurent Pinchart
The subdev .init_cfg() operation is affected by two issues: - It has long been extended to initialize a whole v4l2_subdev_state instead of just a v4l2_subdev_pad_config, but its name has stuck around. - Despite operating on a whole subdev state and not being directly exposed to the subdev users (either in-kernel or through the userspace API), .init_cfg() is categorized as a subdev pad operation. This participates in making the subdev API confusing for new developers. Fix it by renaming the operation to .init_state(), and make it a subdev internal operation. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Michael Riesch <michael.riesch@wolfvision.net> # for imx415 Acked-by: Shuah Khan <skhan@linuxfoundation.org> # for vimc Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> [Sakari Ailus: Resolved a conflict in Renesas vsp1 driver.] Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2023-11-23media: v4l: subdev: Rename sub-device state information access functionsSakari Ailus
Rename the sub-devices state information access functions, removing "_stream" from them and replacing "format" by "ffmt". This makes them shorter and so more convenient to use. No other sets of functions will be needed to access this information. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2023-10-07media: v4l: subdev: Clear frame descriptor before get_frame_descSakari Ailus
Clear frame descriptor before calling transmitter's get_frame_desc() op. Also remove the corresponding memset() calls from drivers. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2023-08-14media: i2c: ds90ub913: Fix use of uninitialized variablesTomi Valkeinen
smatch reports some uninitialized variables: drivers/media/i2c/ds90ub913.c:481 ub913_log_status() error: uninitialized symbol 'v1'. drivers/media/i2c/ds90ub913.c:481 ub913_log_status() error: uninitialized symbol 'v2'. These are used only for printing debug information, and the use of an uninitialized variable only happens if an i2c transaction has failed, which will print an error. Thus, fix the errors just by initializing the variables to 0. Closes: https://lore.kernel.org/all/8d6daeb1-b62a-bbb2-b840-8759c84f2085@xs4all.nl/ Fixes: c158d0d4ff15 ("media: i2c: add DS90UB913 driver") Reported-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2023-08-10media: i2c: ds90ub913: Use v4l2_fwnode_endpoint_parse()Tomi Valkeinen
Use v4l2_fwnode_endpoint_parse() to parse the sink endpoint parameters. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2023-08-10media: i2c: ds90ub9x3: Fix sub-device matchingTomi Valkeinen
Commit 1029939b3782 ("media: v4l: async: Simplify async sub-device fwnode matching") recently changed how async sub-device matching works. This breaks the UB9x3 drivers, as they set the subdev.fwnode to an endpoint. Afaiu, the fix is simply to not set subdev.fwnode at all. Fixes: 1029939b3782 ("media: v4l: async: Simplify async sub-device fwnode matching") Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Cc: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2023-08-10media: v4l: async: Set v4l2_device and subdev in async notifier initSakari Ailus
Set the v4l2_device already in async notifier init, so struct device related to it will be available before the notifier is registered. This requires separating notifier initialisation into two functions, one that takes v4l2_device as its argument, v4l2_async_nf_init and v4l2_async_subdev_nf_init, for sub-device notifiers. Registering the notifier will use a single function, v4l2_async_nf_register. This is done in order to make struct device available earlier, during construction of the async connections, for sensible debug prints. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Tested-by: Philipp Zabel <p.zabel@pengutronix.de> # imx6qp Tested-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> # rcar + adv746x Tested-by: Aishwarya Kothari <aishwarya.kothari@toradex.com> # Apalis i.MX6Q with TC358743 Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> # Renesas RZ/G2L SMARC Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2023-07-28media: v4l: async: Rename v4l2_async_subdev as v4l2_async_connectionSakari Ailus
Rename v4l2_async_subdev as v4l2_async_connection, in order to differentiate between the sub-devices and their connections: one sub-device can have many connections but the V4L2 async framework has so far allowed just a single one. Connections in this context will later translate into either MC ancillary or data links. This patch prepares changing that relation by changing existing users of v4l2_async_subdev to switch to v4l2_async_connection. Async sub-devices themselves will not be needed anymore Additionally, __v4l2_async_nf_add_subdev() has been renamed __v4l2_async_nf_add_connection(). Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Tested-by: Philipp Zabel <p.zabel@pengutronix.de> # imx6qp Tested-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> # rcar + adv746x Tested-by: Aishwarya Kothari <aishwarya.kothari@toradex.com> # Apalis i.MX6Q with TC358743 Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> # Renesas RZ/G2L SMARC Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2023-07-25media: i2c: ds90ub913: Fix a warning about use of uninitialized variableTomi Valkeinen
Fix the following warning: drivers/media/i2c/ds90ub913.c:488:9: warning: 'v' may be used uninitialized [-Wmaybe-uninitialized] 488 | ub913_write(priv, UB913_REG_GENERAL_CFG, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 489 | v | UB913_REG_GENERAL_CFG_CRC_ERR_RESET); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/media/i2c/ds90ub913.c:477:12: note: 'v' was declared here 477 | u8 v, v1, v2; | ^ Fix the warning by initializing the variable to 0. Proper error handling here would be somewhat pointless, as we are just printing register values, and the user will see an error about the failed i2c transaction. Fixes: c158d0d4ff15 ("media: i2c: add DS90UB913 driver") Reported-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Closes: https://lore.kernel.org/all/a0180488-f7f5-8538-a8bb-52ae52912835@xs4all.nl/ Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2023-07-19media: ds90ub9xx: switch three more drivers back to use struct ↵Uwe Kleine-König
i2c_driver::probe() struct i2c_driver::probe_new() is about to go away. Since I converted all drivers below drivers/media use struct i2c_driver::probe, three more drivers were added in the following commits that use .probe_new(): commit 6363db1c9d45 ("media: i2c: add DS90UB953 driver") commit c158d0d4ff15 ("media: i2c: add DS90UB913 driver") commit afe267f2d368 ("media: i2c: add DS90UB960 driver") Switch these driver to use the probe callback. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> [hverkuil: use proper commit description style]
2023-07-14media: i2c: add DS90UB913 driverTomi Valkeinen
Add driver for TI DS90UB913 FPD-Link III Serializer. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>