diff options
| author |   Guennadi Liakhovetski <g.liakhovetski@gmx.de> | 2012-12-04 16:51:40 +0100 |
|---|---|---|
| committer |   Chris Ball <cjb@laptop.org> | 2012-12-07 13:56:03 -0500 |
| commit | 71e69211eac889898dec5a21270347591eb2d001 (patch) | |
| tree | 8caf1e640f2f87c69d256e93ae6240112c8ce35f | |
| parent | mmc: extend the slot-gpio card-detection to use host's .card_event() method (diff) | |
| download | linux-dev-71e69211eac889898dec5a21270347591eb2d001.tar.xz linux-dev-71e69211eac889898dec5a21270347591eb2d001.zip | |
mmc: sdhci: implement the .card_event() method
Extracting a part of the SDHCI card tasklet into a .card_event()
implementation allows SDHCI hosts to use generic card-detection
services, e.g. the GPIO slot function.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Reviewed-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
| -rw-r--r-- | drivers/mmc/host/sdhci.c | 48 |
1 files changed, 27 insertions, 21 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index b2e4b1bab69d..6f0bfc0c8c9c 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -1994,30 +1994,11 @@ static void sdhci_enable_preset_value(struct mmc_host *mmc, bool enable) sdhci_runtime_pm_put(host); } -static const struct mmc_host_ops sdhci_ops = { - .request = sdhci_request, - .set_ios = sdhci_set_ios, - .get_ro = sdhci_get_ro, - .hw_reset = sdhci_hw_reset, - .enable_sdio_irq = sdhci_enable_sdio_irq, - .start_signal_voltage_switch = sdhci_start_signal_voltage_switch, - .execute_tuning = sdhci_execute_tuning, - .enable_preset_value = sdhci_enable_preset_value, -}; - -/*****************************************************************************\ - * * - * Tasklets * - * * -\*****************************************************************************/ - -static void sdhci_tasklet_card(unsigned long param) +static void sdhci_card_event(struct mmc_host *mmc) { - struct sdhci_host *host; + struct sdhci_host *host = mmc_priv(mmc); unsigned long flags; - host = (struct sdhci_host*)param; - spin_lock_irqsave(&host->lock, flags); /* Check host->mrq first in case we are runtime suspended */ @@ -2036,6 +2017,31 @@ static void sdhci_tasklet_card(unsigned long param) } spin_unlock_irqrestore(&host->lock, flags); +} + +static const struct mmc_host_ops sdhci_ops = { + .request = sdhci_request, + .set_ios = sdhci_set_ios, + .get_ro = sdhci_get_ro, + .hw_reset = sdhci_hw_reset, + .enable_sdio_irq = sdhci_enable_sdio_irq, + .start_signal_voltage_switch = sdhci_start_signal_voltage_switch, + .execute_tuning = sdhci_execute_tuning, + .enable_preset_value = sdhci_enable_preset_value, + .card_event = sdhci_card_event, +}; + +/*****************************************************************************\ + * * + * Tasklets * + * * +\*****************************************************************************/ + +static void sdhci_tasklet_card(unsigned long param) +{ + struct sdhci_host *host = (struct sdhci_host*)param; + + sdhci_card_event(host->mmc); mmc_detect_change(host->mmc, msecs_to_jiffies(200)); } |