22 lines
638 B
Diff
22 lines
638 B
Diff
|
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);
|
||
|
|
}
|