lkml.org 
[lkml]   [2020]   [Mar]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v2 2/3] mmc: host: sdhci: Implement the request_atomic() API
Date
Implement the request_atomic() ops for the sdhci driver to process
one request in the atomic context if the card is nonremovable.

Signed-off-by: Baolin Wang <baolin.wang7@gmail.com>
---
drivers/mmc/host/sdhci.c | 27 +++++++++++++++++++--------
drivers/mmc/host/sdhci.h | 1 +
2 files changed, 20 insertions(+), 8 deletions(-)

diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 9c37451..4febbcb 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -2016,17 +2016,12 @@ void sdhci_set_power(struct sdhci_host *host, unsigned char mode,
* *
\*****************************************************************************/

-void sdhci_request(struct mmc_host *mmc, struct mmc_request *mrq)
+static void sdhci_start_request(struct mmc_host *mmc, struct mmc_request *mrq,
+ int present)
{
- struct sdhci_host *host;
- int present;
+ struct sdhci_host *host = mmc_priv(mmc);
unsigned long flags;

- host = mmc_priv(mmc);
-
- /* Firstly check card presence */
- present = mmc->ops->get_cd(mmc);
-
spin_lock_irqsave(&host->lock, flags);

sdhci_led_activate(host);
@@ -2043,6 +2038,22 @@ void sdhci_request(struct mmc_host *mmc, struct mmc_request *mrq)

spin_unlock_irqrestore(&host->lock, flags);
}
+
+void sdhci_request_atomic(struct mmc_host *mmc, struct mmc_request *mrq)
+{
+ sdhci_start_request(mmc, mrq, 1);
+}
+EXPORT_SYMBOL_GPL(sdhci_request_atomic);
+
+void sdhci_request(struct mmc_host *mmc, struct mmc_request *mrq)
+{
+ int present;
+
+ /* Firstly check card presence */
+ present = mmc->ops->get_cd(mmc);
+
+ sdhci_start_request(mmc, mrq, present);
+}
EXPORT_SYMBOL_GPL(sdhci_request);

void sdhci_set_bus_width(struct sdhci_host *host, int width)
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index cac2d97..5507a73 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -775,6 +775,7 @@ void sdhci_set_power(struct sdhci_host *host, unsigned char mode,
void sdhci_set_power_noreg(struct sdhci_host *host, unsigned char mode,
unsigned short vdd);
void sdhci_request(struct mmc_host *mmc, struct mmc_request *mrq);
+void sdhci_request_atomic(struct mmc_host *mmc, struct mmc_request *mrq);
void sdhci_set_bus_width(struct sdhci_host *host, int width);
void sdhci_reset(struct sdhci_host *host, u8 mask);
void sdhci_set_uhs_signaling(struct sdhci_host *host, unsigned timing);
--
1.9.1
\
 
 \ /
  Last update: 2020-03-17 11:15    [W:0.048 / U:0.016 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site