From: Phil Edworthy <[email protected]> Enable runtime PM so that the clock used to access the registers in the peripheral is turned on using a clock domain.
Signed-off-by: Phil Edworthy <[email protected]> Signed-off-by: Gareth Williams <[email protected]> --- drivers/spi/spi-dw.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/spi/spi-dw.c b/drivers/spi/spi-dw.c index 9a49e07..593bbb0 100644 --- a/drivers/spi/spi-dw.c +++ b/drivers/spi/spi-dw.c @@ -10,6 +10,7 @@ #include <linux/module.h> #include <linux/highmem.h> #include <linux/delay.h> +#include <linux/pm_runtime.h> #include <linux/slab.h> #include <linux/spi/spi.h> @@ -497,6 +498,9 @@ int dw_spi_add_host(struct device *dev, struct dw_spi *dws) if (dws->set_cs) master->set_cs = dws->set_cs; + pm_runtime_enable(dev); + pm_runtime_get_sync(dev); + /* Basic HW init */ spi_hw_init(dev, dws); -- 2.7.4
