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Subject[PATCH] spi: bcm2835: Implement shutdown callback
Date
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>
---
drivers/spi/spi-bcm2835.c | 10 ++++++++++
1 file changed, 10 insertions(+)

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);

--
2.17.1
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