[PATCH v14 3/3] leds: flash: mt6370: Add MediaTek MT6370 flashlight support
Jacek Anaszewski
jacek.anaszewski at gmail.com
Tue Oct 11 04:02:06 PDT 2022
On 10/11/22 11:52, AngeloGioacchino Del Regno wrote:
> Il 11/10/22 06:05, ChiaEn Wu ha scritto:
>> From: Alice Chen <alice_chen at richtek.com>
>>
>> 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.
>>
>> Signed-off-by: Alice Chen <alice_chen at richtek.com>
>> Signed-off-by: ChiaEn Wu <chiaen_wu at richtek.com>
>> ---
>>
>> v14
>> - Remove unused 'depend on OF' in Kconfig
>> ---
>> drivers/leds/flash/Kconfig | 14 +
>> drivers/leds/flash/Makefile | 1 +
>> drivers/leds/flash/leds-mt6370-flash.c | 631
>> +++++++++++++++++++++++++++++++++
>> 3 files changed, 646 insertions(+)
>> create mode 100644 drivers/leds/flash/leds-mt6370-flash.c
>>
>> diff --git a/drivers/leds/flash/Kconfig b/drivers/leds/flash/Kconfig
>> index d3eb689..0dd955c 100644
>> --- a/drivers/leds/flash/Kconfig
>> +++ b/drivers/leds/flash/Kconfig
>> @@ -61,6 +61,20 @@ config LEDS_MT6360
>> Independent current sources supply for each flash LED support
>> torch
>> and strobe mode.
>> +config LEDS_MT6370_FLASH
>> + tristate "Flash LED Support for MediaTek MT6370 PMIC"
>> + depends on LEDS_CLASS
>> + depends on LEDS_CLASS_FLASH || !LEDS_CLASS_FLASH
>
> This dependency makes no sense, as the options in the Kconfig you're
> putting
> this into gets parsed only `if LEDS_CLASS_FLASH`.
> Please remove that.
So the Kconfig is buggy. Someone didn't take into account
`config LEDS_MT6360` requirements when moving drivers to the
flash subdirectory.
>
>> + depends on V4L2_FLASH_LED_CLASS || !V4L2_FLASH_LED_CLASS
>
> Well, if it depends on that being either y, m or n, it means that it does
> not depend on that at all. Remove.
I disagree. It makes a lot of sense.
This syntax allows creating correct dependencies by depmod for both
cases when V4L2_FLASH_LED_CLASS is enabled or not, since the driver
can work in both cases.
>
> After which,
> Reviewed-by: AngeloGioacchino Del Regno
> <angelogioacchino.delregno at collabora.com>
>
>> + depends on MFD_MT6370
>> + help
>> + Support 2 channels and torch/strobe mode.
>> + Say Y here to enable support for
>> + MT6370_FLASH_LED device.
>> +
>> + This driver can also be built as a module. If so, the module
>> + will be called "leds-mt6370-flash".
>> +
>> config LEDS_RT4505
>> tristate "LED support for RT4505 flashlight controller"
>> depends on I2C && OF
>
--
Best regards,
Jacek Anaszewski
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