[U-Boot] [PATCH v3 35/54] dm: power: Add regulator flags to centralise auto-set logic

[Przemyslaw Marczak <p.marczak@samsung.com>]

Hello Simon,

On 06/23/2015 11:38 PM, Simon Glass wrote:
> Decide when the regulator is set up whether we want to auto-set the voltage
> or current. This avoids the complex logic spilling into the processing code.
>
> Signed-off-by: Simon Glass <sjg@chromium.org>
> ---
>
> Changes in v3: None
> Changes in v2: None
>
>   drivers/power/regulator/regulator-uclass.c | 12 ++++++++++++
>   include/power/regulator.h                  |  8 ++++++++
>   2 files changed, 20 insertions(+)
>
> diff --git a/drivers/power/regulator/regulator-uclass.c b/drivers/power/regulator/regulator-uclass.c
> index 31ffd44..0f1ca77 100644
> --- a/drivers/power/regulator/regulator-uclass.c
> +++ b/drivers/power/regulator/regulator-uclass.c
> @@ -319,6 +319,18 @@ static int regulator_pre_probe(struct udevice *dev)
>   	uc_pdata->boot_on = fdtdec_get_bool(gd->fdt_blob, offset,
>   					    "regulator-boot-on");
>
> +	/* Those values are optional (-ENODATA if unset) */
> +	if ((uc_pdata->min_uV != -ENODATA) &&
> +	    (uc_pdata->max_uV != -ENODATA) &&
> +	    (uc_pdata->min_uV == uc_pdata->max_uV))
> +		uc_pdata->flags |= REGULATOR_FLAG_AUTOSET_UV;
> +
> +	/* Those values are optional (-ENODATA if unset) */
> +	if ((uc_pdata->min_uA != -ENODATA) &&
> +	    (uc_pdata->max_uA != -ENODATA) &&
> +	    (uc_pdata->min_uA == uc_pdata->max_uA))
> +		uc_pdata->flags |= REGULATOR_FLAG_AUTOSET_UA;
> +
>   	return 0;
>   }
>
> diff --git a/include/power/regulator.h b/include/power/regulator.h
> index 03a2cef..79ce0a4 100644
> --- a/include/power/regulator.h
> +++ b/include/power/regulator.h
> @@ -128,6 +128,11 @@ struct dm_regulator_mode {
>   	const char *name;
>   };
>
> +enum regulator_flag {
> +	REGULATOR_FLAG_AUTOSET_UV	= 1 << 0,
> +	REGULATOR_FLAG_AUTOSET_UA	= 1 << 1,
> +};
> +
>   /**
>    * struct dm_regulator_uclass_platdata - pointed by dev->uclass_platdata, and
>    * allocated on each regulator bind. This structure holds an information
> @@ -143,6 +148,8 @@ struct dm_regulator_mode {
>    * @max_uA*    - maximum amperage (micro Amps)
>    * @always_on* - bool type, true or false
>    * @boot_on*   - bool type, true or false
> + * TODO(sjg at chromium.org): Consider putting the above two into @flags
> + * @flags:     - flags value (see REGULATOR_FLAG_...)
>    * @name**     - fdt regulator name - should be taken from the device tree
>    *
>    * Note:
> @@ -162,6 +169,7 @@ struct dm_regulator_uclass_platdata {
>   	bool always_on;
>   	bool boot_on;
>   	const char *name;
> +	int flags;
>   };
>
>   /* Regulator device operations */
>

Tested on:
- Odroid U3 (odroid_defconfig)
- Sandbox - ut pmic/regulator

Tested-by: Przemyslaw Marczak <p.marczak@samsung.com>
Acked-by: Przemyslaw Marczak <p.marczak@samsung.com>

Best regards,
-- 
Przemyslaw Marczak
Samsung R&D Institute Poland
Samsung Electronics
p.marczak at samsung.com