From: Ai Kyuse <ai.kyuse...@renesas.com>
Add hw reset support.
Signed-off-by: Ai Kyuse <ai.kyuse...@renesas.com>
Signed-off-by: Simon Horman <horms+rene...@verge.net.au>
---
This is required by tuning support which will
be introduced by follow-up patches.
v6
* Rely on core to retune on reset
v5
* As suggested by Ulf Hansson
- Broke out of a larger patch
---
drivers/mmc/host/tmio_mmc.h | 1 +
drivers/mmc/host/tmio_mmc_pio.c | 9 +++++++++
2 files changed, 10 insertions(+)
diff --git a/drivers/mmc/host/tmio_mmc.h b/drivers/mmc/host/tmio_mmc.h
index b93762950e8f..c5adf52fc049 100644
--- a/drivers/mmc/host/tmio_mmc.h
+++ b/drivers/mmc/host/tmio_mmc.h
@@ -167,6 +167,7 @@ struct tmio_mmc_host {
int (*start_signal_voltage_switch)(struct mmc_host *mmc,
struct mmc_ios *ios);
int (*write16_hook)(struct tmio_mmc_host *host, int addr);
+ void (*hw_reset)(struct tmio_mmc_host *host);
};
struct tmio_mmc_host *tmio_mmc_host_alloc(struct platform_device *pdev);
diff --git a/drivers/mmc/host/tmio_mmc_pio.c b/drivers/mmc/host/tmio_mmc_pio.c
index 0ae967087ea1..ce6e93758576 100644
--- a/drivers/mmc/host/tmio_mmc_pio.c
+++ b/drivers/mmc/host/tmio_mmc_pio.c
@@ -759,6 +759,14 @@ static int tmio_mmc_start_data(struct tmio_mmc_host *host,
return 0;
}
+static void tmio_mmc_hw_reset(struct mmc_host *mmc)
+{
+ struct tmio_mmc_host *host = mmc_priv(mmc);
+
+ if (host->hw_reset)
+ host->hw_reset(host);
+}
+
/* Process requests from the MMC layer */
static void tmio_mmc_request(struct mmc_host *mmc, struct mmc_request *mrq)
{
@@ -975,6 +983,7 @@ static struct mmc_host_ops tmio_mmc_ops = {
.get_cd = mmc_gpio_get_cd,
.enable_sdio_irq = tmio_mmc_enable_sdio_irq,
.multi_io_quirk = tmio_multi_io_quirk,
+ .hw_reset = tmio_mmc_hw_reset,
};
static int tmio_mmc_init_ocr(struct tmio_mmc_host *host)
--
2.7.0.rc3.207.g0ac5344
