[PATCH v3 8/9] mmmc: core: Keep PM domain powered during ->probe() of SDIO func driver
From: Ulf Hansson <hidden>
Date: 2014-10-13 14:02:09
Also in:
linux-pm, linux-samsung-soc
Subsystem:
multimedia card (mmc), secure digital (sd) and sdio subsystem, the rest · Maintainers:
Ulf Hansson, Linus Torvalds
To sucessfully probe some devices their corresponding PM domains may need to be powered. Use the dev_pm_domain_get|put() APIs, to control the behavior of the PM domain. Signed-off-by: Ulf Hansson <redacted> --- drivers/mmc/core/sdio_bus.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/drivers/mmc/core/sdio_bus.c b/drivers/mmc/core/sdio_bus.c
index ba97779..83c8836 100644
--- a/drivers/mmc/core/sdio_bus.c
+++ b/drivers/mmc/core/sdio_bus.c@@ -318,7 +318,14 @@ int sdio_add_func(struct sdio_func *func) if (ret) return ret; + ret = dev_pm_domain_get(func->dev.pm_domain); + if (ret) { + dev_pm_domain_detach(&func->dev, false); + return ret; + } + ret = device_add(&func->dev); + dev_pm_domain_put(func->dev.pm_domain); if (ret) { dev_pm_domain_detach(&func->dev, false); return ret;
--
1.9.1