mtd: spi-nor: support vcc-supply regulator

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@nxp.com>
Reviewed-by: Marco Felsch <m.felsch@pengutronix.de>
[ta: move devm_regulator_get_enable() to spi_nor_probe().]
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Reviewed-by: Pratyush Yadav <pratyush@kernel.org>
Signed-off-by: Pratyush Yadav <pratyush@kernel.org>
Link: https://lore.kernel.org/r/20241111111946.9048-3-tudor.ambarus@linaro.org
This commit is contained in:
Peng Fan
2024-11-11 13:19:46 +02:00
committed by Pratyush Yadav
parent 07c888838e
commit d8bde4fd66

View File

@@ -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>
@@ -3587,6 +3588,10 @@ static int spi_nor_probe(struct spi_mem *spimem)
char *flash_name;
int ret;
ret = devm_regulator_get_enable(dev, "vcc");
if (ret)
return ret;
nor = devm_kzalloc(dev, sizeof(*nor), GFP_KERNEL);
if (!nor)
return -ENOMEM;