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Subject[PATCH] spi: atmel: add missing spi_master_{resume,suspend} calls to PM callbacks
Date
The PM callbacks implemented by the spi-atmel driver don't call
spi_master_{resume,suspend}, fix that.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
---
Hi Mark,

The patch is based on the branch: for-next
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git

Best Regards,
Wenyou Yang

drivers/spi/spi-atmel.c | 17 ++++++++++++++++-
1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c
index 47e7aeb..bda961e 100644
--- a/drivers/spi/spi-atmel.c
+++ b/drivers/spi/spi-atmel.c
@@ -1440,6 +1440,14 @@ static int atmel_spi_suspend(struct device *dev)
{
struct spi_master *master = dev_get_drvdata(dev);
struct atmel_spi *as = spi_master_get_devdata(master);
+ int ret;
+
+ /* Stop the queue running */
+ ret = spi_master_suspend(master);
+ if (ret) {
+ dev_warn(dev, "cannot suspend master\n");
+ return ret;
+ }

clk_disable_unprepare(as->clk);

@@ -1452,11 +1460,18 @@ static int atmel_spi_resume(struct device *dev)
{
struct spi_master *master = dev_get_drvdata(dev);
struct atmel_spi *as = spi_master_get_devdata(master);
+ int ret;

pinctrl_pm_select_default_state(dev);

clk_prepare_enable(as->clk);
- return 0;
+
+ /* Start the queue running */
+ ret = spi_master_resume(master);
+ if (ret)
+ dev_err(dev, "problem starting queue (%d)\n", ret);
+
+ return ret;
}

static SIMPLE_DEV_PM_OPS(atmel_spi_pm_ops, atmel_spi_suspend, atmel_spi_resume);
--
1.7.9.5


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