From c50325f7bcb8a3ceaacb9dbc41180b1cbbae7b5e Mon Sep 17 00:00:00 2001 From: "Chew, Chiau Ee" Date: Fri, 29 Nov 2013 02:13:11 +0800 Subject: [PATCH] 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 Acked-by: Mika Westerberg Signed-off-by: Mark Brown --- drivers/spi/spi-pxa2xx.c | 3 +++ 1 file changed, 3 insertions(+) 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) { -- 2.7.4