[PATCH] spi/pxa2xx: Restore private register bits.
Chew Chiau Ee
chiau.ee.chew at intel.com
Thu Nov 28 13:13:11 EST 2013
From: Chew, Chiau Ee <chiau.ee.chew at intel.com>
The Intel LPSS SPI private register bits have to be restored
when system resume from S3 suspend.
Signed-off-by: Chew, Chiau Ee <chiau.ee.chew at intel.com>
Acked-by: Mika Westerberg <mika.westerberg at linux.intel.com>
---
drivers/spi/spi-pxa2xx.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index 7028180..7765b19 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -1293,6 +1293,9 @@ static int pxa2xx_spi_resume(struct device *dev)
/* Enable the SSP clock */
clk_prepare_enable(ssp->clk);
+ /* Restore LPSS private register bits */
+ lpss_ssp_setup(drv_data);
+
/* Start the queue running */
status = spi_master_resume(drv_data->master);
if (status != 0) {
--
1.7.4.4
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