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authorFlorian Fainelli <f.fainelli@gmail.com>2020-05-28 22:06:05 +0300
committerMark Brown <broonie@kernel.org>2020-05-29 19:49:53 +0300
commit118eb0e52eb74b899053a0f46dfe7e178788d23b (patch)
treed2bc7d79cd3b18f86f48f62efadc1288d53423b6 /drivers/spi
parentb7d73cb63cbac70746ee0d506aa2fa16b5dc75a0 (diff)
downloadlinux-118eb0e52eb74b899053a0f46dfe7e178788d23b.tar.xz
spi: bcm2835: Implement shutdown callback
Make sure we clear the FIFOs, stop the block, disable the clock and release the DMA channel. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Link: https://lore.kernel.org/r/20200528190605.24850-1-f.fainelli@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi')
-rw-r--r--drivers/spi/spi-bcm2835.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/spi/spi-bcm2835.c b/drivers/spi/spi-bcm2835.c
index 20d8581fdf88..237bd306c268 100644
--- a/drivers/spi/spi-bcm2835.c
+++ b/drivers/spi/spi-bcm2835.c
@@ -1391,6 +1391,15 @@ static int bcm2835_spi_remove(struct platform_device *pdev)
return 0;
}
+static void bcm2835_spi_shutdown(struct platform_device *pdev)
+{
+ int ret;
+
+ ret = bcm2835_spi_remove(pdev);
+ if (ret)
+ dev_err(&pdev->dev, "failed to shutdown\n");
+}
+
static const struct of_device_id bcm2835_spi_match[] = {
{ .compatible = "brcm,bcm2835-spi", },
{}
@@ -1404,6 +1413,7 @@ static struct platform_driver bcm2835_spi_driver = {
},
.probe = bcm2835_spi_probe,
.remove = bcm2835_spi_remove,
+ .shutdown = bcm2835_spi_shutdown,
};
module_platform_driver(bcm2835_spi_driver);