kernel/git/stable/linux.git/drivers/video/backlight, branch linux-6.4.y

backlight/lv5207lp: Compare against struct fb_info.device

2023-09-13T07:48:39+00:00

commit 1ca8819320fd84e7d95b04e7668efc5f9fe9fa5c upstream. Struct lv5207lp_platform_data refers to a platform device within the Linux device hierarchy. The test in lv5207lp_backlight_check_fb() compares it against the fbdev device in struct fb_info.dev, which is different. Fix the test by comparing to struct fb_info.device. Fixes a bug in the backlight driver and prepares fbdev for making struct fb_info.dev optional. v2: * move renames into separate patch (Javier, Sam, Michael) Fixes: 82e5c40d88f9 ("backlight: Add Sanyo LV5207LP backlight driver") Signed-off-by: Thomas Zimmermann Cc: Laurent Pinchart Cc: Yoshinori Sato Cc: Rich Felker Cc: John Paul Adrian Glaubitz Cc: Lee Jones Cc: Daniel Thompson Cc: Jingoo Han Cc: linux-sh@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: # v3.12+ Reviewed-by: Javier Martinez Canillas Reviewed-by: Sam Ravnborg Reviewed-by: Daniel Thompson Link: https://patchwork.freedesktop.org/patch/msgid/20230613110953.24176-6-tzimmermann@suse.de Signed-off-by: Greg Kroah-Hartman

backlight/bd6107: Compare against struct fb_info.device

2023-09-13T07:48:39+00:00

commit 992bdddaabfba19bdc77c1c7a4977b2aa41ec891 upstream. Struct bd6107_platform_data refers to a platform device within the Linux device hierarchy. The test in bd6107_backlight_check_fb() compares it against the fbdev device in struct fb_info.dev, which is different. Fix the test by comparing to struct fb_info.device. Fixes a bug in the backlight driver and prepares fbdev for making struct fb_info.dev optional. v2: * move renames into separate patch (Javier, Sam, Michael) Fixes: 67b43e590415 ("backlight: Add ROHM BD6107 backlight driver") Signed-off-by: Thomas Zimmermann Cc: Laurent Pinchart Cc: Lee Jones Cc: Daniel Thompson Cc: Jingoo Han Cc: dri-devel@lists.freedesktop.org Cc: # v3.12+ Reviewed-by: Javier Martinez Canillas Reviewed-by: Sam Ravnborg Reviewed-by: Daniel Thompson Link: https://patchwork.freedesktop.org/patch/msgid/20230613110953.24176-2-tzimmermann@suse.de Signed-off-by: Greg Kroah-Hartman

backlight/gpio_backlight: Compare against struct fb_info.device

2023-09-13T07:48:39+00:00

commit 7b91d017f77c1bda56f27c2f4bbb70de7c6eca08 upstream. Struct gpio_backlight_platform_data refers to a platform device within the Linux device hierarchy. The test in gpio_backlight_check_fb() compares it against the fbdev device in struct fb_info.dev, which is different. Fix the test by comparing to struct fb_info.device. Fixes a bug in the backlight driver and prepares fbdev for making struct fb_info.dev optional. v2: * move renames into separate patch (Javier, Sam, Michael) Signed-off-by: Thomas Zimmermann Fixes: 8b770e3c9824 ("backlight: Add GPIO-based backlight driver") Cc: Laurent Pinchart Cc: Rich Felker Cc: John Paul Adrian Glaubitz Cc: Lee Jones Cc: Daniel Thompson Cc: Jingoo Han Cc: linux-sh@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: # v3.12+ Reviewed-by: Sam Ravnborg Reviewed-by: Daniel Thompson Link: https://patchwork.freedesktop.org/patch/msgid/20230613110953.24176-4-tzimmermann@suse.de Signed-off-by: Greg Kroah-Hartman

Merge tag 'backlight-next-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight

2023-05-02T17:46:11+00:00

Pull backlight updates from Lee Jones: "Fix-ups: - Add / improve Device Tree bindings - Convert (int) .remove functions to (void) .remove_new - Rid 'defined but not used' warnings - Remove ineffective casts and pointer stubs - Use specifically crafted API for testing DT property presence" * tag 'backlight-next-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight: backlight: as3711: Use of_property_read_bool() for boolean properties backlight: hx8357: Use of_property_present() for testing DT property presence backlight: arcxcnn_bl: Drop of_match_ptr for ID table backlight: lp855x: Mark OF related data as maybe unused backlight: sky81452-backlight: Convert to platform remove callback returning void backlight: rt4831-backlight: Convert to platform remove callback returning void backlight: qcom-wled: Convert to platform remove callback returning void backlight: pwm_bl: Convert to platform remove callback returning void backlight: mt6370-backlight: Convert to platform remove callback returning void backlight: lp8788_bl: Convert to platform remove callback returning void backlight: lm3533_bl: Convert to platform remove callback returning void backlight: led_bl: Convert to platform remove callback returning void backlight: hp680_bl: Convert to platform remove callback returning void backlight: da9052_bl: Convert to platform remove callback returning void backlight: cr_bllcd: Convert to platform remove callback returning void backlight: adp5520_bl: Convert to platform remove callback returning void backlight: aat2870_bl: Convert to platform remove callback returning void backlight: qcom-wled: Add PMI8950 compatible

Merge tag 'driver-core-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

2023-04-27T18:53:57+00:00

Pull driver core updates from Greg KH: "Here is the large set of driver core changes for 6.4-rc1. Once again, a busy development cycle, with lots of changes happening in the driver core in the quest to be able to move "struct bus" and "struct class" into read-only memory, a task now complete with these changes. This will make the future rust interactions with the driver core more "provably correct" as well as providing more obvious lifetime rules for all busses and classes in the kernel. The changes required for this did touch many individual classes and busses as many callbacks were changed to take const * parameters instead. All of these changes have been submitted to the various subsystem maintainers, giving them plenty of time to review, and most of them actually did so. Other than those changes, included in here are a small set of other things: - kobject logging improvements - cacheinfo improvements and updates - obligatory fw_devlink updates and fixes - documentation updates - device property cleanups and const * changes - firwmare loader dependency fixes. All of these have been in linux-next for a while with no reported problems" * tag 'driver-core-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (120 commits) device property: make device_property functions take const device * driver core: update comments in device_rename() driver core: Don't require dynamic_debug for initcall_debug probe timing firmware_loader: rework crypto dependencies firmware_loader: Strip off \n from customized path zram: fix up permission for the hot_add sysfs file cacheinfo: Add use_arch[|_cache]_info field/function arch_topology: Remove early cacheinfo error message if -ENOENT cacheinfo: Check cache properties are present in DT cacheinfo: Check sib_leaf in cache_leaves_are_shared() cacheinfo: Allow early level detection when DT/ACPI info is missing/broken cacheinfo: Add arm64 early level initializer implementation cacheinfo: Add arch specific early level initializer tty: make tty_class a static const structure driver core: class: remove struct class_interface * from callbacks driver core: class: mark the struct class in struct class_interface constant driver core: class: make class_register() take a const * driver core: class: mark class_release() as taking a const * driver core: remove incorrect comment for device_create* MIPS: vpe-cmp: remove module owner pointer from struct class usage. ...

driver core: class: remove module * from class_create()

2023-03-17T14:16:33+00:00

The module pointer in class_create() never actually did anything, and it shouldn't have been requred to be set as a parameter even if it did something. So just remove it and fix up all callers of the function in the kernel tree at the same time. Cc: "Rafael J. Wysocki" Acked-by: Benjamin Tissoires Link: https://lore.kernel.org/r/20230313181843.1207845-4-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman

backlight: as3711: Use of_property_read_bool() for boolean properties

2023-03-16T16:12:53+00:00

It is preferred to use typed property access functions (i.e. of_property_read_ functions) rather than low-level of_get_property/of_find_property functions for reading properties. Convert reading boolean properties to to of_property_read_bool(). Signed-off-by: Rob Herring Reviewed-by: Daniel Thompson Signed-off-by: Lee Jones Link: https://lore.kernel.org/r/20230310144731.1546190-1-robh@kernel.org

backlight: hx8357: Use of_property_present() for testing DT property presence

2023-03-16T16:12:27+00:00

It is preferred to use typed property access functions (i.e. of_property_read_ functions) rather than low-level of_get_property/of_find_property functions for reading properties. As part of this, convert of_get_property/of_find_property calls to the recently added of_property_present() helper when we just want to test for presence of a property and nothing more. Signed-off-by: Rob Herring Reviewed-by: Daniel Thompson Signed-off-by: Lee Jones Link: https://lore.kernel.org/r/20230310144730.1546101-1-robh@kernel.org

backlight: arcxcnn_bl: Drop of_match_ptr for ID table

2023-03-16T16:11:42+00:00

The driver will match mostly by DT table (even thought there is regular ID table) so there is little benefit in of_match_ptr (this also allows ACPI matching via PRP0001, even though it might not be relevant here). drivers/video/backlight/arcxcnn_bl.c:378:34: error: ‘arcxcnn_dt_ids’ defined but not used [-Werror=unused-const-variable=] Signed-off-by: Krzysztof Kozlowski Reviewed-by: Daniel Thompson Signed-off-by: Lee Jones Link: https://lore.kernel.org/r/20230311173556.263086-2-krzysztof.kozlowski@linaro.org

backlight: lp855x: Mark OF related data as maybe unused

2023-03-16T16:11:14+00:00

The driver can be compile tested with !CONFIG_OF making certain data unused: drivers/video/backlight/lp855x_bl.c:551:34: error: ‘lp855x_dt_ids’ defined but not used [-Werror=unused-const-variable=] Signed-off-by: Krzysztof Kozlowski Reviewed-by: Daniel Thompson Signed-off-by: Lee Jones Link: https://lore.kernel.org/r/20230311173556.263086-1-krzysztof.kozlowski@linaro.org