Re: [PATCH v10 08/13] regulator: bd718x7: Split driver to common and bd718x7 specific parts

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On Fri, 17 Jan 2020, Matti Vaittinen wrote:

> Few ROHM PMICs allow setting the voltage states for different system states
> like RUN, IDLE, SUSPEND and LPSR. States are then changed via SoC specific
> mechanisms. bd718x7 driver implemented device-tree parsing functions for
> these state specific voltages. The parsing functions can be re-used by
> other ROHM chip drivers like bd71828. Split the generic functions from
> bd718x7-regulator.c to rohm-regulator.c and export them for other modules
> to use.
> 
> Signed-off-by: Matti Vaittinen <matti.vaittinen@xxxxxxxxxxxxxxxxx>
> Acked-by: Mark Brown <broonie@xxxxxxxxxx>
> ---
> no changes since v9
> 
>  drivers/regulator/Kconfig             |   4 +
>  drivers/regulator/Makefile            |   1 +
>  drivers/regulator/bd718x7-regulator.c | 183 ++++++++------------------
>  drivers/regulator/rohm-regulator.c    |  95 +++++++++++++
>  include/linux/mfd/rohm-generic.h      |  66 ++++++++++
>  5 files changed, 221 insertions(+), 128 deletions(-)
>  create mode 100644 drivers/regulator/rohm-regulator.c

[...]

> diff --git a/include/linux/mfd/rohm-generic.h b/include/linux/mfd/rohm-generic.h
> index ff3dd7578fd3..6cc5a0819959 100644
> --- a/include/linux/mfd/rohm-generic.h
> +++ b/include/linux/mfd/rohm-generic.h
> @@ -4,6 +4,9 @@
>  #ifndef __LINUX_MFD_ROHM_H__
>  #define __LINUX_MFD_ROHM_H__
>  
> +#include <linux/regmap.h>
> +#include <linux/regulator/driver.h>
> +
>  enum rohm_chip_type {
>  	ROHM_CHIP_TYPE_BD71837 = 0,
>  	ROHM_CHIP_TYPE_BD71847,
> @@ -17,4 +20,67 @@ struct rohm_regmap_dev {
>  	struct regmap *regmap;
>  };
>  
> +enum {
> +	ROHM_DVS_LEVEL_UNKNOWN,
> +	ROHM_DVS_LEVEL_RUN,
> +	ROHM_DVS_LEVEL_IDLE,
> +	ROHM_DVS_LEVEL_SUSPEND,
> +	ROHM_DVS_LEVEL_LPSR,
> +#define ROHM_DVS_LEVEL_MAX ROHM_DVS_LEVEL_LPSR

Haven't seen this before.  Is it legit?

What about:

     ROHM_DVS_LEVEL_MAX = ROHM_DVS_LEVEL_LPSR

-- 
Lee Jones [李琼斯]
Linaro Services Technical Lead
Linaro.org │ Open source software for ARM SoCs
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