diff options
Diffstat (limited to 'drivers/spi/spi-pxa2xx-platform.c')
| -rw-r--r-- | drivers/spi/spi-pxa2xx-platform.c | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/drivers/spi/spi-pxa2xx-platform.c b/drivers/spi/spi-pxa2xx-platform.c index 98a8ceb7db6f..595af9fa4e0f 100644 --- a/drivers/spi/spi-pxa2xx-platform.c +++ b/drivers/spi/spi-pxa2xx-platform.c @@ -7,6 +7,7 @@ #include <linux/init.h> #include <linux/mod_devicetable.h> #include <linux/platform_device.h> +#include <linux/pm_runtime.h> #include <linux/property.h> #include <linux/types.h> @@ -63,7 +64,7 @@ static struct ssp_device *pxa2xx_spi_ssp_request(struct platform_device *pdev) ssp = pxa_ssp_request(pdev->id, pdev->name); if (!ssp) - return ssp; + return NULL; status = devm_add_action_or_reset(&pdev->dev, pxa2xx_spi_ssp_release, ssp); if (status) @@ -142,14 +143,13 @@ static int pxa2xx_spi_platform_probe(struct platform_device *pdev) struct pxa2xx_spi_controller *platform_info; struct device *dev = &pdev->dev; struct ssp_device *ssp; + int ret; platform_info = dev_get_platdata(dev); if (!platform_info) { platform_info = pxa2xx_spi_init_pdata(pdev); if (IS_ERR(platform_info)) return dev_err_probe(dev, PTR_ERR(platform_info), "missing platform data\n"); - - dev->platform_data = platform_info; } ssp = pxa2xx_spi_ssp_request(pdev); @@ -158,12 +158,28 @@ static int pxa2xx_spi_platform_probe(struct platform_device *pdev) if (!ssp) ssp = &platform_info->ssp; - return pxa2xx_spi_probe(dev, ssp); + pm_runtime_set_autosuspend_delay(dev, 50); + pm_runtime_use_autosuspend(dev); + pm_runtime_set_active(dev); + pm_runtime_enable(dev); + + ret = pxa2xx_spi_probe(dev, ssp, platform_info); + if (ret) + pm_runtime_disable(dev); + + return ret; } static void pxa2xx_spi_platform_remove(struct platform_device *pdev) { - pxa2xx_spi_remove(&pdev->dev); + struct device *dev = &pdev->dev; + + pm_runtime_get_sync(dev); + + pxa2xx_spi_remove(dev); + + pm_runtime_put_noidle(dev); + pm_runtime_disable(dev); } static const struct acpi_device_id pxa2xx_spi_acpi_match[] = { |