target/linux/generic/pending-4.4/106-spi-use-gpio_set_value_cansleep-for-setting-chipsele.patch

   1 From: Felix Fietkau <nbd@nbd.name>
   2 Date: Fri, 30 Dec 2016 14:53:45 +0100
   3 Subject: [PATCH] spi: use gpio_set_value_cansleep for setting chipselect GPIO
   4
   5 Sleeping is safe inside spi_transfer_one_message, and some GPIO chips
   6 need to sleep for setting values
   7
   8 Signed-off-by: Felix Fietkau <nbd@nbd.name>
   9 ---
  10
  11 --- a/drivers/spi/spi.c
  12 +++ b/drivers/spi/spi.c
  13 @@ -674,7 +674,7 @@ static void spi_set_cs(struct spi_device
  14                 enable = !enable;
  15
  16         if (gpio_is_valid(spi->cs_gpio))
  17 -               gpio_set_value(spi->cs_gpio, !enable);
  18 +               gpio_set_value_cansleep(spi->cs_gpio, !enable);
  19         else if (spi->master->set_cs)
  20                 spi->master->set_cs(spi, !enable);
  21  }