[PATCH v2 2/3] mtd: spi-nor: support vcc-supply regulator

[Marc Kleine-Budde]

On 30.09.2024 17:22:25, Peng Fan (OSS) wrote:
> From: Peng Fan <peng.fan at nxp.com>
> 
> SPI NOR flashes needs power supply to work properly. The power supply
> maybe software controllable per board design. So add the support
> for an vcc-supply regulator.
> 
> Signed-off-by: Peng Fan <peng.fan at nxp.com>
> ---
>  drivers/mtd/spi-nor/core.c | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c
> index 9d6e85bf227b..5249c8b13916 100644
> --- a/drivers/mtd/spi-nor/core.c
> +++ b/drivers/mtd/spi-nor/core.c
> @@ -17,6 +17,7 @@
>  #include <linux/mtd/spi-nor.h>
>  #include <linux/mutex.h>
>  #include <linux/of_platform.h>
> +#include <linux/regulator/consumer.h>
>  #include <linux/sched/task_stack.h>
>  #include <linux/sizes.h>
>  #include <linux/slab.h>
> @@ -3462,6 +3463,10 @@ int spi_nor_scan(struct spi_nor *nor, const char *name,
>  	if (!nor->bouncebuf)
>  		return -ENOMEM;
>  
> +	ret = devm_regulator_get_enable(dev, "vcc");
> +	if (ret)
> +		return ret;
> +

What happens if the SPI-NOR doesn't have a "vcc" regulator?

Marc

-- 
Pengutronix e.K.                 | Marc Kleine-Budde          |
Embedded Linux                   | https://www.pengutronix.de |
Vertretung Nürnberg              | Phone: +49-5121-206917-129 |
Amtsgericht Hildesheim, HRA 2686 | Fax:   +49-5121-206917-9   |
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