From: Peng Fan <peng.fan@xxxxxxx> 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@xxxxxxx> Reviewed-by: Marco Felsch <m.felsch@xxxxxxxxxxxxxx> [ta: move devm_regulator_get_enable() to spi_nor_probe().] Signed-off-by: Tudor Ambarus <tudor.ambarus@xxxxxxxxxx> --- v5: introduce the local dev variable to its own patch v4: move the devm_regulator_get_enable() call from spi_nor_scan to spi_nor_probe(). We no longer add support for the drivers under drivers/mtd/spi-nor/controllers/. Those drivers shall be moved under drivers/spi. 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 2a329084505c..19eb98bd6821 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> @@ -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; -- 2.34.1
