spi/pxa2xx: fix runtime PM enabling order
In commit 7dd62787334ac6e0e2a0ef3f20bb1936ac431b04 (spi/pxa2xx: Convert
to core runtime PM) master->auto_runtime_pm was set to true.
In this case pm_runtime_enable() must be called *before*
spi_register_master(), otherwise the kernel hangs with this error
message:
spi_master spi0: Failed to power device: -13
A similar fix, but for spi/hspi, was applied in
268d76430d1b68c340687357ffd18b4b12d02269.
Signed-off-by: Antonio Ospite <ao2@ao2.it>
Signed-off-by: Mark Brown <broonie@linaro.org>
diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index 41185d0..a07b758 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -1202,6 +1202,11 @@
tasklet_init(&drv_data->pump_transfers, pump_transfers,
(unsigned long)drv_data);
+ pm_runtime_set_autosuspend_delay(&pdev->dev, 50);
+ pm_runtime_use_autosuspend(&pdev->dev);
+ pm_runtime_set_active(&pdev->dev);
+ pm_runtime_enable(&pdev->dev);
+
/* Register with the SPI framework */
platform_set_drvdata(pdev, drv_data);
status = devm_spi_register_master(&pdev->dev, master);
@@ -1210,11 +1215,6 @@
goto out_error_clock_enabled;
}
- pm_runtime_set_autosuspend_delay(&pdev->dev, 50);
- pm_runtime_use_autosuspend(&pdev->dev);
- pm_runtime_set_active(&pdev->dev);
- pm_runtime_enable(&pdev->dev);
-
return status;
out_error_clock_enabled: