From: Chew, Chiau Ee <chiau.ee.chew@intel.com>
Date: Thu, 28 Nov 2013 18:13:11 +0000 (+0800)
Subject: spi/pxa2xx: Restore private register bits.
X-Git-Tag: accepted/tizen/common/20141203.182822~993^2^6
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c50325f7bcb8a3ceaacb9dbc41180b1cbbae7b5e;p=platform%2Fkernel%2Flinux-arm64.git

spi/pxa2xx: Restore private register bits.

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@intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---

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) {