diff options
| author | Ulf Hansson <ulf.hansson@linaro.org> | 2014-01-23 03:19:38 +0400 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2014-05-12 14:52:34 +0400 |
| commit | 42dcc89a914722635814ae405cfdacfeccad82d1 (patch) | |
| tree | 1339b18239f7e88ce62e5277f20d3f89074fba06 /drivers/mmc/host/mmci.c | |
| parent | 89ca3b881987f5a4be4c5dbaa7f0df12bbdde2fd (diff) | |
| download | linux-42dcc89a914722635814ae405cfdacfeccad82d1.tar.xz | |
mmc: mmci: Mask IRQs for all variants during runtime suspend
In runtime suspended state, we are not expecting IRQs and thus we can
safely mask them, not only for pwrreg_nopower variants but for all.
Obviously we then also need to make sure we restore the IRQ mask while
becoming runtime resumed.
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/host/mmci.c')
| -rw-r--r-- | drivers/mmc/host/mmci.c | 23 |
1 files changed, 11 insertions, 12 deletions
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c index 771c60ab4a32..0f10e3ccb944 100644 --- a/drivers/mmc/host/mmci.c +++ b/drivers/mmc/host/mmci.c @@ -1794,35 +1794,34 @@ static void mmci_save(struct mmci_host *host) { unsigned long flags; - if (host->variant->pwrreg_nopower) { - spin_lock_irqsave(&host->lock, flags); + spin_lock_irqsave(&host->lock, flags); - writel(0, host->base + MMCIMASK0); + writel(0, host->base + MMCIMASK0); + if (host->variant->pwrreg_nopower) { writel(0, host->base + MMCIDATACTRL); writel(0, host->base + MMCIPOWER); writel(0, host->base + MMCICLOCK); - mmci_reg_delay(host); - - spin_unlock_irqrestore(&host->lock, flags); } + mmci_reg_delay(host); + spin_unlock_irqrestore(&host->lock, flags); } static void mmci_restore(struct mmci_host *host) { unsigned long flags; - if (host->variant->pwrreg_nopower) { - spin_lock_irqsave(&host->lock, flags); + spin_lock_irqsave(&host->lock, flags); + if (host->variant->pwrreg_nopower) { writel(host->clk_reg, host->base + MMCICLOCK); writel(host->datactrl_reg, host->base + MMCIDATACTRL); writel(host->pwr_reg, host->base + MMCIPOWER); - writel(MCI_IRQENABLE, host->base + MMCIMASK0); - mmci_reg_delay(host); - - spin_unlock_irqrestore(&host->lock, flags); } + writel(MCI_IRQENABLE, host->base + MMCIMASK0); + mmci_reg_delay(host); + + spin_unlock_irqrestore(&host->lock, flags); } static int mmci_runtime_suspend(struct device *dev) |