* [PATCH v2] mmc: sdio: add reset callback to bus operations
@ 2015-04-23 11:15 Andreas Fenkart
2015-05-05 8:33 ` Ulf Hansson
0 siblings, 1 reply; 2+ messages in thread
From: Andreas Fenkart @ 2015-04-23 11:15 UTC (permalink / raw)
To: linux-mmc; +Cc: Ulf Hansson, Jaehoon Chung, NeilBrown, Andreas Fenkart
Some drivers schedule automatic hw resets. An example is mwifiex,
which schedules a card reset if the command handler between driver
and card firmware becomes out of sync
Signed-off-by: Andreas Fenkart <afenkart@gmail.com>
---
drivers/mmc/core/sdio.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index ce6cc47..01255ef 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -1064,6 +1064,12 @@ static int mmc_sdio_runtime_resume(struct mmc_host *host)
return mmc_sdio_power_restore(host);
}
+static int mmc_sdio_reset(struct mmc_host *host)
+{
+ mmc_power_cycle(host, host->card->ocr);
+ return mmc_sdio_power_restore(host);
+}
+
static const struct mmc_bus_ops mmc_sdio_ops = {
.remove = mmc_sdio_remove,
.detect = mmc_sdio_detect,
@@ -1074,6 +1080,7 @@ static const struct mmc_bus_ops mmc_sdio_ops = {
.runtime_resume = mmc_sdio_runtime_resume,
.power_restore = mmc_sdio_power_restore,
.alive = mmc_sdio_alive,
+ .reset = mmc_sdio_reset,
};
--
2.1.4
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH v2] mmc: sdio: add reset callback to bus operations
2015-04-23 11:15 [PATCH v2] mmc: sdio: add reset callback to bus operations Andreas Fenkart
@ 2015-05-05 8:33 ` Ulf Hansson
0 siblings, 0 replies; 2+ messages in thread
From: Ulf Hansson @ 2015-05-05 8:33 UTC (permalink / raw)
To: Andreas Fenkart; +Cc: linux-mmc, Jaehoon Chung, NeilBrown
On 23 April 2015 at 13:15, Andreas Fenkart <afenkart@gmail.com> wrote:
> Some drivers schedule automatic hw resets. An example is mwifiex,
> which schedules a card reset if the command handler between driver
> and card firmware becomes out of sync
>
> Signed-off-by: Andreas Fenkart <afenkart@gmail.com>
Thanks, applied!
Kind regards
Uffe
> ---
> drivers/mmc/core/sdio.c | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
> index ce6cc47..01255ef 100644
> --- a/drivers/mmc/core/sdio.c
> +++ b/drivers/mmc/core/sdio.c
> @@ -1064,6 +1064,12 @@ static int mmc_sdio_runtime_resume(struct mmc_host *host)
> return mmc_sdio_power_restore(host);
> }
>
> +static int mmc_sdio_reset(struct mmc_host *host)
> +{
> + mmc_power_cycle(host, host->card->ocr);
> + return mmc_sdio_power_restore(host);
> +}
> +
> static const struct mmc_bus_ops mmc_sdio_ops = {
> .remove = mmc_sdio_remove,
> .detect = mmc_sdio_detect,
> @@ -1074,6 +1080,7 @@ static const struct mmc_bus_ops mmc_sdio_ops = {
> .runtime_resume = mmc_sdio_runtime_resume,
> .power_restore = mmc_sdio_power_restore,
> .alive = mmc_sdio_alive,
> + .reset = mmc_sdio_reset,
> };
>
>
> --
> 2.1.4
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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