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* leds: lm3601x: Convert to use maple tree register cacheMark Brown2023-11-011-1/+1
| | | | | | | | | | The maple tree register cache is based on a much more modern data structure than the rbtree cache and makes optimisation choices which are probably more appropriate for modern systems than those made by the rbtree cache. Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20230929-leds-maple-v1-1-ba5f9dcb1e75@kernel.org Signed-off-by: Lee Jones <lee@kernel.org>
* leds: mt6370: Annotate struct mt6370_priv with __counted_byKees Cook2023-11-011-1/+1
| | | | | | | | | | | | | | | | | | Prepare for the coming implementation by GCC and Clang of the __counted_by attribute. Flexible array members annotated with __counted_by can have their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS (for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family functions). As found with Coccinelle[1], add __counted_by for struct mt6370_priv. [1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20230915201051.never.429-kees@kernel.org Signed-off-by: Lee Jones <lee@kernel.org>
* leds: mt6360: Annotate struct mt6360_priv with __counted_byKees Cook2023-11-011-1/+1
| | | | | | | | | | | | | | | | | | Prepare for the coming implementation by GCC and Clang of the __counted_by attribute. Flexible array members annotated with __counted_by can have their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS (for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family functions). As found with Coccinelle[1], add __counted_by for struct mt6360_priv. [1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20230915201020.never.433-kees@kernel.org Signed-off-by: Lee Jones <lee@kernel.org>
* leds: Convert all platform drivers to return voidUwe Kleine-König2023-11-017-26/+14
| | | | | | | | | | | | | | | | | | | The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Eventually after all drivers are converted, .remove_new() is renamed to .remove(). All platform drivers below drivers/leds/ unconditionally return zero in their remove callback and so can be converted trivially to the variant returning void. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20230917130947.1122198-1-u.kleine-koenig@pengutronix.de Signed-off-by: Lee Jones <lee@kernel.org>
* leds: flash: leds-qcom-flash: Put child node if registration failedFenglin Wu2023-07-281-0/+1
| | | | | | | | Put the child node if register flash LED device failed. Signed-off-by: Fenglin Wu <quic_fenglinw@quicinc.com> Link: https://lore.kernel.org/r/20230725-leds-qcom-flash-driver-tiny-fixes-v2-3-0f5cbce5fed0@quicinc.com Signed-off-by: Lee Jones <lee@kernel.org>
* leds: flash: leds-qcom-flash: Turn off LED before setting flash currentFenglin Wu2023-07-281-0/+4
| | | | | | | | | | Strobe off the LED before setting flash current to avoid it's being enabled with an incorrect current if it has been working in torch mode. Signed-off-by: Fenglin Wu <quic_fenglinw@quicinc.com> Link: https://lore.kernel.org/r/20230725-leds-qcom-flash-driver-tiny-fixes-v2-2-0f5cbce5fed0@quicinc.com Signed-off-by: Lee Jones <lee@kernel.org>
* leds: flash: leds-qcom-flash: Declare the driver as a moduleFenglin Wu2023-07-281-0/+2
| | | | | | | | Explain in Kconfig that the driver can be compiled as a module. Signed-off-by: Fenglin Wu <quic_fenglinw@quicinc.com> Link: https://lore.kernel.org/r/20230725-leds-qcom-flash-driver-tiny-fixes-v2-1-0f5cbce5fed0@quicinc.com Signed-off-by: Lee Jones <lee@kernel.org>
* leds: sgm3140: Add richtek,rt5033-led compatibleRaymond Hackley2023-06-211-0/+1
| | | | | | | | | Richtek's rt5033-led has pin configurations similar to sgm3140. Add it to the compatible list. Signed-off-by: Raymond Hackley <raymondhackley@protonmail.com> Link: https://lore.kernel.org/r/20230602131024.260297-1-raymondhackley@protonmail.com Signed-off-by: Lee Jones <lee@kernel.org>
* leds: flash: leds-qcom-flash: Fix an unsigned comparison which can never be ↵Jiapeng Chong2023-06-081-2/+2
| | | | | | | | | | | | | | | | | | | | negative The variable 'count' is defined as unsigned type, so the following if statement is invalid, we can modify the type of count to int. if (count <= 0) { dev_err(dev, "No led-sources specified\n"); return -ENODEV; } ./drivers/leds/flash/leds-qcom-flash.c:546:5-10: WARNING: Unsigned expression compared with zero: count <= 0. Reported-by: Abaci Robot <abaci@linux.alibaba.com> Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=5344 Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20230531053559.5702-1-jiapeng.chong@linux.alibaba.com
* leds: as3645a: Replace strlcpy with strscpyAzeem Shaikh2023-05-251-2/+2
| | | | | | | | | | | | | Part of a tree-wide effort to remove deprecated strlcpy()[1] and replace it with strscpy()[2]. No return values were used, so direct replacement is safe. [1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strlcpy [2] https://github.com/KSPP/linux/issues/89 Signed-off-by: Azeem Shaikh <azeemshaikh38@gmail.com> Link: https://lore.kernel.org/r/20230524144824.2360607-1-azeemshaikh38@gmail.com Signed-off-by: Lee Jones <lee@kernel.org>
* leds: Replace all non-returning strlcpy with strscpyAzeem Shaikh2023-05-251-1/+1
| | | | | | | | | | | | | | | | | | strlcpy() reads the entire source buffer first. This read may exceed the destination size limit. This is both inefficient and can lead to linear read overflows if a source string is not NUL-terminated [1]. In an effort to remove strlcpy() completely [2], replace strlcpy() here with strscpy(). No return values were used, so direct replacement is safe. [1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strlcpy [2] https://github.com/KSPP/linux/issues/89 Signed-off-by: Azeem Shaikh <azeemshaikh38@gmail.com> Reviewed-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20230523021451.2406362-1-azeemshaikh38@gmail.com Signed-off-by: Lee Jones <lee@kernel.org>
* leds: Switch i2c drivers back to use .probe()Uwe Kleine-König2023-05-253-3/+3
| | | | | | | | | | | | After commit b8a1a4cd5a98 ("i2c: Provide a temporary .probe_new() call-back type"), all drivers being converted to .probe_new() and then 03c835f498b5 ("i2c: Switch .probe() to not take an id parameter") convert back to (the new) .probe() to be able to eventually drop .probe_new() from struct i2c_driver. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20230517180559.166329-1-u.kleine-koenig@pengutronix.de Signed-off-by: Lee Jones <lee@kernel.org>
* leds: flash: leds-qcom-flash: Disable LED when changing brightnessDylan Van Assche2023-05-251-0/+8
| | | | | | | | | | The Qualcomm PMI8998 PMIC requires the LED to be disabled when configuring the brightness. Always disable the LED when setting the brightness and re-enable it afterwards. Signed-off-by: Dylan Van Assche <me@dylanvanassche.be> Link: https://lore.kernel.org/r/20230507172941.364852-3-me@dylanvanassche.be Signed-off-by: Lee Jones <lee@kernel.org>
* leds: flash: leds-qcom-flash: Add PMI8998 supportDylan Van Assche2023-05-251-2/+3
| | | | | | | | | | Add subtype for the Qualcomm PMI8998 PMIC to support it besides the PM8150 PMIC which has the same registers. Adjust the driver to recognize both PMIC subtypes as a 3 channel LED driver. Signed-off-by: Dylan Van Assche <me@dylanvanassche.be> Link: https://lore.kernel.org/r/20230507172941.364852-2-me@dylanvanassche.be Signed-off-by: Lee Jones <lee@kernel.org>
* leds: flash: Set variables mvflash_{3,4}ch_regs storage-class-specifier to ↵Tom Rix2023-03-301-2/+2
| | | | | | | | | | | | | | | | | | static Smatch reports: drivers/leds/flash/leds-qcom-flash.c:103:18: warning: symbol 'mvflash_3ch_regs' was not declared. Should it be static? drivers/leds/flash/leds-qcom-flash.c:115:18: warning: symbol 'mvflash_4ch_regs' was not declared. Should it be static? These variables are only used locally, so it should be static. Signed-off-by: Tom Rix <trix@redhat.com> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20230317191341.1670660-1-trix@redhat.com
* leds: flash: mt6370: Add MediaTek MT6370 flashlight supportChiYuan Huang2023-03-233-0/+587
| | | | | | | | | | | | | | | | | | | The MediaTek MT6370 is a highly-integrated smart power management IC, which includes a single cell Li-Ion/Li-Polymer switching battery charger, a USB Type-C & Power Delivery (PD) controller, dual Flash LED current sources, a RGB LED driver, a backlight WLED driver, a display bias driver and a general LDO for portable devices. Add support for the MT6370 Flash LED driver. Flash LED in MT6370 has 2 channels and support torch/strobe mode. Co-developed-by: Alice Chen <alice_chen@richtek.com> Signed-off-by: Alice Chen <alice_chen@richtek.com> Signed-off-by: ChiYuan Huang <cy_huang@richtek.com> Signed-off-by: ChiaEn Wu <chiaen_wu@richtek.com> Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/52480420a160e5a4c71715fbbf105e684a16e7c2.1678430444.git.chiaen_wu@richtek.com
* leds: flash: Add driver to support flash LED module in QCOM PMICsFenglin Wu2023-03-163-0/+789
| | | | | | | | | | | | | | | Add initial driver to support flash LED module found in Qualcomm Technologies, Inc. PMICs. The flash module can have 3 or 4 channels and each channel can be controlled indepedently and support full scale current up to 1.5 A. It also supports connecting two channels together to supply one LED component with full scale current up to 2 A. In that case, the current will be split on each channel symmetrically and the channels will be enabled and disabled at the same time. Signed-off-by: Fenglin Wu <quic_fenglinw@quicinc.com> Tested-by: Luca Weiss <luca.weiss@fairphone.com> # sm7225-fairphone-fp4 + pm6150l Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20230303095023.538917-2-quic_fenglinw@quicinc.com
* leds: mt6360: Get rid of custom led_init_default_state_get()Andy Shevchenko2023-01-301-32/+6
| | | | | | | | | | | LED core provides a helper to parse default state from firmware node. Use it instead of custom implementation. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20230103131256.33894-8-andriy.shevchenko@linux.intel.com
* i2c: Make remove callback return voidUwe Kleine-König2022-08-163-8/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The value returned by an i2c driver's remove function is mostly ignored. (Only an error message is printed if the value is non-zero that the error is ignored.) So change the prototype of the remove function to return no value. This way driver authors are not tempted to assume that passing an error to the upper layer is a good idea. All drivers are adapted accordingly. There is no intended change of behaviour, all callbacks were prepared to return 0 before. Reviewed-by: Peter Senna Tschudin <peter.senna@gmail.com> Reviewed-by: Jeremy Kerr <jk@codeconstruct.com.au> Reviewed-by: Benjamin Mugnier <benjamin.mugnier@foss.st.com> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Crt Mori <cmo@melexis.com> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Marek Behún <kabel@kernel.org> # for leds-turris-omnia Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Petr Machata <petrm@nvidia.com> # for mlxsw Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com> # for surface3_power Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> # for bmc150-accel-i2c + kxcjk-1013 Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> # for media/* + staging/media/* Acked-by: Miguel Ojeda <ojeda@kernel.org> # for auxdisplay/ht16k33 + auxdisplay/lcd2s Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> # for versaclock5 Reviewed-by: Ajay Gupta <ajayg@nvidia.com> # for ucsi_ccg Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> # for iio Acked-by: Peter Rosin <peda@axentia.se> # for i2c-mux-*, max9860 Acked-by: Adrien Grassein <adrien.grassein@gmail.com> # for lontium-lt8912b Reviewed-by: Jean Delvare <jdelvare@suse.de> # for hwmon, i2c-core and i2c/muxes Acked-by: Corey Minyard <cminyard@mvista.com> # for IPMI Reviewed-by: Vladimir Oltean <olteanv@gmail.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com> # for drivers/power Acked-by: Krzysztof Hałasa <khalasa@piap.pl> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Wolfram Sang <wsa@kernel.org>
* leds: lm3601x: Improve error reporting for problems during .remove()Uwe Kleine-König2022-08-161-3/+8
| | | | | | | | | | | | | | | | | Returning an error value in an i2c remove callback results in a generic error message being emitted by the i2c core, but otherwise it doesn't make a difference. The device goes away anyhow and the devm cleanups are called. So instead of triggering the generic i2c error message, emit a more helpful message if a problem occurs and return 0 to suppress the generic message. This patch is a preparation for making i2c remove callbacks return void. Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Wolfram Sang <wsa@kernel.org>
* leds: lm3601x: Don't use mutex after it was destroyedUwe Kleine-König2022-08-161-2/+0
| | | | | | | | | | | The mutex might still be in use until the devm cleanup callback devm_led_classdev_flash_release() is called. This only happens some time after lm3601x_remove() completed. Fixes: e63a744871a3 ("leds: lm3601x: Convert class registration to device managed") Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Wolfram Sang <wsa@kernel.org>
* leds: ktd2692: Make aux-gpios optionalMarkuss Broks2022-05-071-3/+2
| | | | | | | | | Make the AUX pin optional, since it isn't a core part of functionality, and the device is designed to be operational with only one CTRL pin. Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Markuss Broks <markuss.broks@gmail.com> Signed-off-by: Pavel Machek <pavel@ucw.cz>
* leds: ktd2692: Avoid duplicate error messages on probe deferralMarkuss Broks2022-05-071-8/+4
| | | | | | | | Use dev_err_probe instead of dev_err to avoid duplicate error messages if the GPIO allocation makes the probe defer. Signed-off-by: Markuss Broks <markuss.broks@gmail.com> Signed-off-by: Pavel Machek <pavel@ucw.cz>
* leds: sgm3140: Add ocs,ocp8110 compatibleAndré Apitzsch2022-02-121-0/+1
| | | | | | | | | Orient-Chip's ocp8110 has the same pin configuration as the sgm3140. The data sheet can be found at: https://cdn.datasheetspdf.com/pdf-down/O/C/P/OCP8110-OrientChip.pdf Signed-off-by: André Apitzsch <git@apitzsch.eu> Signed-off-by: Pavel Machek <pavel@ucw.cz>
* leds: ktd2692: Drop calling dev_of_node() in ktd2692_parse_dtLad Prabhakar2022-01-121-1/+1
| | | | | | | | | output of dev_of_node() is already assigned to "np" variable in ktd2692_parse_dt(). Use "np" variable to check if OF node is NULL instead of calling dev_of_node() again. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Signed-off-by: Pavel Machek <pavel@ucw.cz>
* leds: Add mt6360 driverGene Chen2022-01-123-0/+924
| | | | | | | | | | Add MT6360 LED driver include 2-channel Flash LED with torch/strobe mode, 3-channel RGB LED support Register/Flash/Breath Mode, and 1-channel for moonlight LED. Signed-off-by: Gene Chen <gene_chen@richtek.com> Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com> Signed-off-by: Pavel Machek <pavel@ucw.cz>
* leds: rt8515: Put fwnode in any case during ->probe()Andy Shevchenko2021-08-031-1/+3
| | | | | | | | | | | fwnode_get_next_available_child_node() bumps a reference counting of a returned variable. We have to balance it whenever we return to the caller. Fixes: e1c6edcbea13 ("leds: rt8515: Add Richtek RT8515 LED driver") Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Pavel Machek <pavel@ucw.cz> Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
* leds: ktd2692: Move driver to flash subdirectoryLinus Walleij2021-07-123-0/+435
| | | | | | | | | | We created a subdirectory for LED drivers that depend on CONFIG_LEDS_CLASS_FLASH, and this driver does so let's move it there. Cc: Ingi Kim <ingi2.kim@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Pavel Machek <pavel@ucw.cz>
* leds: lm3601x: Move driver to flash subdirectoryLinus Walleij2021-07-123-0/+490
| | | | | | | | | | We created a subdirectory for LED drivers that depend on CONFIG_LEDS_CLASS_FLASH, and this driver does so let's move it there. Cc: Dan Murphy <dmurphy@ti.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Pavel Machek <pavel@ucw.cz>
* leds: sgm3140: Move driver to flash subdirectoryLinus Walleij2021-07-123-0/+319
| | | | | | | | | | We created a subdirectory for LED drivers that depend on CONFIG_LEDS_CLASS_FLASH, and this driver does so let's move it there. Cc: Luca Weiss <luca@z3ntu.xyz> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Pavel Machek <pavel@ucw.cz>
* leds: max77693: Move driver to flash subdirectoryLinus Walleij2021-07-123-0/+1070
| | | | | | | | | | We created a subdirectory for LED drivers that depend on CONFIG_LEDS_CLASS_FLASH, and this driver does so let's move it there. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com> Signed-off-by: Pavel Machek <pavel@ucw.cz>
* leds: as3645a: Move driver to flash subdirectoryLinus Walleij2021-07-123-0/+784
| | | | | | | | | | We created a subdirectory for LED drivers that depend on CONFIG_LEDS_CLASS_FLASH, and this driver does so let's move it there. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Pavel Machek <pavel@ucw.cz>
* leds: aat1290: Move driver to flash subdirectoryLinus Walleij2021-07-123-0/+566
| | | | | | | | | | We created a subdirectory for LED drivers that depend on CONFIG_LEDS_CLASS_FLASH, and this driver does so let's move it there. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com> Signed-off-by: Pavel Machek <pavel@ucw.cz>
* leds: rt4505: Add support for Richtek RT4505 flash LED controllerChiYuan Huang2021-03-263-0/+442
| | | | | | | | | Add support for RT4505 flash LED controller. It can support up to 1.5A flash current with hardware timeout and low input voltage protection. Signed-off-by: ChiYuan Huang <cy_huang@richtek.com> Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com> Signed-off-by: Pavel Machek <pavel@ucw.cz>
* leds: rt8515: add V4L2_FLASH_LED_CLASS dependencyArnd Bergmann2021-02-141-0/+1
| | | | | | | | | | | | | | | | | | | | | | | The leds-rt8515 driver can optionall use the v4l2 flash led class, but it causes a link error when that class is in a loadable module and the rt8515 driver itself is built-in: ld.lld: error: undefined symbol: v4l2_flash_init >>> referenced by leds-rt8515.c >>> leds/flash/leds-rt8515.o:(rt8515_probe) in archive drivers/built-in.a Adding 'depends on V4L2_FLASH_LED_CLASS' in Kconfig would avoid that, but it would make it impossible to use the driver without the v4l2 support. Add the same dependency that the other users of this class have instead, which just prevents the broken configuration. Fixes: e1c6edcbea13 ("leds: rt8515: Add Richtek RT8515 LED driver") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Pavel Machek <pavel@ucw.cz>
* leds: rt8515: Add Richtek RT8515 LED driverLinus Walleij2021-01-313-0/+415
This adds a driver for the Richtek RT8515 dual channel torch/flash white LED driver. This LED driver is found in some mobile phones from Samsung such as the GT-S7710 and GT-I8190. A V4L interface is added. We do not have a proper datasheet for the RT8515 but it turns out that RT9387A has a public datasheet and is essentially the same chip. We designed the driver in accordance with this datasheet. The day someone needs to drive a RT9387A this driver can probably easily be augmented to handle that chip too. Sakari Ailus, Pavel Machek and Andy Shevchenko helped significantly in getting this driver right. Cc: Sakari Ailus <sakari.ailus@iki.fi> Cc: newbytee@protonmail.com Cc: Stephan Gerhold <stephan@gerhold.net> Cc: linux-media@vger.kernel.org Cc: phone-devel@vger.kernel.org Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Pavel Machek <pavel@ucw.cz>
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