mmc: slot-gpio: Rework how to handle allocation of slot-gpio data

By moving the allocation of the slot-gpio data into mmc_alloc_host(),
we can remove the slot-gpio internal calls to mmc_gpio_alloc().

This means mmc_gpio_alloc() has now only one caller left, which
consequence allow us to simplify and remove some of the slot-gpio code.

Additionally, this makes the slot-gpio mutex redundant, so let's remove
it.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

1 files changed, 0 insertions, 2 deletions

diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index 9f322706f7cb..b6bf718c3498 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -166,7 +166,6 @@ struct mmc_async_req {
  * struct mmc_slot - MMC slot functions
  *
  * @cd_irq:             MMC/SD-card slot hotplug detection IRQ or -EINVAL
- * @lock:               protect the @handler_priv pointer
  * @handler_priv:       MMC/SD-card slot context
  *
  * Some MMC/SD host controllers implement slot-functions like card and
@@ -176,7 +175,6 @@ struct mmc_async_req {
  */
 struct mmc_slot {
         int cd_irq;
-        struct mutex lock;
         void *handler_priv;
 };