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- From: Felix Fietkau <nbd@nbd.name>
- Date: Fri, 30 Dec 2016 14:53:45 +0100
- Subject: [PATCH] spi: use gpio_set_value_cansleep for setting chipselect GPIO
- Sleeping is safe inside spi_transfer_one_message, and some GPIO chips
- need to sleep for setting values
- Signed-off-by: Felix Fietkau <nbd@nbd.name>
- ---
- --- a/drivers/spi/spi.c
- +++ b/drivers/spi/spi.c
- @@ -674,7 +674,7 @@ static void spi_set_cs(struct spi_device
- enable = !enable;
-
- if (gpio_is_valid(spi->cs_gpio))
- - gpio_set_value(spi->cs_gpio, !enable);
- + gpio_set_value_cansleep(spi->cs_gpio, !enable);
- else if (spi->master->set_cs)
- spi->master->set_cs(spi, !enable);
- }
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