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SubjectRe: [PATCH/RFC 6/8] leds: Add support for max77693 mfd flash cell
On Thu, 20 Mar 2014, Jacek Anaszewski wrote:

> This patch adds led-flash support to Maxim max77693 chipset.
> Device can be exposed to user space through LED subsystem
> sysfs interface or through V4L2 subdevice when the support
> for Multimedia Framework is enabled. Device supports up to
> two leds which can work in flash and torch mode. Leds can
> be triggered externally or by software.
>
> Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
> Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
> Cc: Bryan Wu <cooloney@gmail.com>
> Cc: Richard Purdie <rpurdie@rpsys.net>
> Cc: SangYoung Son <hello.son@smasung.com>
> Cc: Samuel Ortiz <sameo@linux.intel.com>
> Cc: Lee Jones <lee.jones@linaro.org>
> ---
> drivers/leds/Kconfig | 9 +
> drivers/leds/Makefile | 1 +
> drivers/leds/leds-max77693.c | 768 ++++++++++++++++++++++++++++++++++++++++++
> drivers/mfd/max77693.c | 21 +-
> include/linux/mfd/max77693.h | 32 ++
> 5 files changed, 825 insertions(+), 6 deletions(-)
> create mode 100644 drivers/leds/leds-max77693.c

[...]

> diff --git a/drivers/mfd/max77693.c b/drivers/mfd/max77693.c
> index c5535f0..6fa92d3 100644
> --- a/drivers/mfd/max77693.c
> +++ b/drivers/mfd/max77693.c
> @@ -41,12 +41,21 @@
> #define I2C_ADDR_MUIC (0x4A >> 1)
> #define I2C_ADDR_HAPTIC (0x90 >> 1)
>
> -static const struct mfd_cell max77693_devs[] = {
> - { .name = "max77693-pmic", },
> - { .name = "max77693-charger", },
> - { .name = "max77693-flash", },
> - { .name = "max77693-muic", },
> - { .name = "max77693-haptic", },
> +enum mfd_devs_idx {
> + IDX_PMIC,
> + IDX_CHARGER,
> + IDX_LED,
> + IDX_MUIC,
> + IDX_HAPTIC,
> +};
> +
> +static struct mfd_cell max77693_devs[] = {
> + [IDX_PMIC] = { .name = "max77693-pmic", },
> + [IDX_CHARGER] = { .name = "max77693-charger", },
> + [IDX_LED] = { .name = "max77693-led",
> + .of_compatible = "maxim,max77693-led"},
> + [IDX_MUIC] = { .name = "max77693-muic", },
> + [IDX_HAPTIC] = { .name = "max77693-haptic", },
> };

What is the purpose of this change?

--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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