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Upgrade to 4.4.50-rt62
[kvmfornfv.git]
/
kernel
/
drivers
/
spi
/
spi-rockchip.c
diff --git
a/kernel/drivers/spi/spi-rockchip.c
b/kernel/drivers/spi/spi-rockchip.c
index
79a8bc4
..
035767c
100644
(file)
--- a/
kernel/drivers/spi/spi-rockchip.c
+++ b/
kernel/drivers/spi/spi-rockchip.c
@@
-265,7
+265,10
@@
static inline u32 rx_max(struct rockchip_spi *rs)
static void rockchip_spi_set_cs(struct spi_device *spi, bool enable)
{
u32 ser;
static void rockchip_spi_set_cs(struct spi_device *spi, bool enable)
{
u32 ser;
- struct rockchip_spi *rs = spi_master_get_devdata(spi->master);
+ struct spi_master *master = spi->master;
+ struct rockchip_spi *rs = spi_master_get_devdata(master);
+
+ pm_runtime_get_sync(rs->dev);
ser = readl_relaxed(rs->regs + ROCKCHIP_SPI_SER) & SER_MASK;
ser = readl_relaxed(rs->regs + ROCKCHIP_SPI_SER) & SER_MASK;
@@
-290,6
+293,8
@@
static void rockchip_spi_set_cs(struct spi_device *spi, bool enable)
ser &= ~(1 << spi->chip_select);
writel_relaxed(ser, rs->regs + ROCKCHIP_SPI_SER);
ser &= ~(1 << spi->chip_select);
writel_relaxed(ser, rs->regs + ROCKCHIP_SPI_SER);
+
+ pm_runtime_put_sync(rs->dev);
}
static int rockchip_spi_prepare_message(struct spi_master *master,
}
static int rockchip_spi_prepare_message(struct spi_master *master,