> This adds driver to support HiSilicon Hi6421 PMIC. Hi6421 includes multi-
> functions, such as regulators, codec, ADCs, Coulomb counter, etc.
> This driver includes core APIs _only_.
>
> Drivers for individul components, like voltage regulators, are
> implemented in corresponding driver directories and files.
>
> Registers in Hi6421 are memory mapped, so using regmap-mmio API.
>
> Signed-off-by: Guodong Xu <guodong.xu@xxxxxxxxxx>
> ---
The patch is missing version information normally indicated to in the
£SUBJECT line with a full description added here. This looks like a
first submission, but we both know that it's not.
> drivers/mfd/Kconfig | 13 +++++
> drivers/mfd/Makefile | 1 +
> drivers/mfd/hi6421-pmic-core.c | 112 ++++++++++++++++++++++++++++++++++++++++
> include/linux/mfd/hi6421-pmic.h | 42 +++++++++++++++
> 4 files changed, 168 insertions(+)
> create mode 100644 drivers/mfd/hi6421-pmic-core.c
> create mode 100644 include/linux/mfd/hi6421-pmic.h
[...]
> diff --git a/drivers/mfd/hi6421-pmic-core.c b/drivers/mfd/hi6421-pmic-core.c
> new file mode 100644
> index 0000000..c6cba8f
> --- /dev/null
> +++ b/drivers/mfd/hi6421-pmic-core.c
> @@ -0,0 +1,112 @@
[...]
> +#include <linux/device.h>
> +#include <linux/err.h>
> +#include <linux/mfd/core.h>
> +#include <linux/module.h>
> +#include <linux/of.h>
> +#include <linux/platform_device.h>
> +#include <linux/regmap.h>
> +#include <linux/mfd/hi6421-pmic.h>
> +
> +static struct of_device_id of_hi6421_pmic_match_tbl[] = {
> + { .compatible = "hisilicon,hi6421-pmic", },
> + { },
> +};
Unless you're going to use this to of_match() on in future, this
should be down by the definition of 'struct platform_driver'.
> +static int hi6421_pmic_probe(struct platform_device *pdev)
> +{
[...]
> + /* set over-current protection debounce 8ms */
> + regmap_update_bits(pmic->regmap, HI6421_OCP_DEB_CTRL_REG,
> + (HI6421_OCP_DEB_SEL_MASK | HI6421_OCP_EN_DEBOUNCE_MASK |
> + HI6421_OCP_AUTO_STOP_MASK),
> + (HI6421_OCP_DEB_SEL_8MS | HI6421_OCP_EN_DEBOUNCE_ENABLE));
These might read a little better stacked and aligned.
> + pmic->dev = &pdev->dev;
Can't you retrieve this via dev->parent?
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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