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authorAdrian Hunter <adrian.hunter@intel.com>2018-01-09 09:52:22 +0200
committerUlf Hansson <ulf.hansson@linaro.org>2018-01-17 12:30:43 +0100
commit81b14543ac81d529d6c07ce3be0cdfc9fe417389 (patch)
tree3457a9c680b6efb139ad13f9054c1a435537518b /drivers/mmc/host
parent58e79b60751d1ea6d13e09c6095f5e4cd5e040ee (diff)
mmc: sdhci: Rework sdhci_enable_irq_wakeups()
In preparation for adding more conditions for whether IRQ wakeup is enabled, rework sdhci_enable_irq_wakeups() so that needed bits are added instead of adding them all and then removing the unneeded bits. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/host')
-rw-r--r--drivers/mmc/host/sdhci.c25
1 files changed, 15 insertions, 10 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index cc9776d9e8f4..070aff9c108f 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -2830,20 +2830,25 @@ static irqreturn_t sdhci_thread_irq(int irq, void *dev_id)
*/
static bool sdhci_enable_irq_wakeups(struct sdhci_host *host)
{
+ u8 mask = SDHCI_WAKE_ON_INSERT | SDHCI_WAKE_ON_REMOVE |
+ SDHCI_WAKE_ON_INT;
+ u32 irq_val = 0;
+ u8 wake_val = 0;
u8 val;
- u8 mask = SDHCI_WAKE_ON_INSERT | SDHCI_WAKE_ON_REMOVE
- | SDHCI_WAKE_ON_INT;
- u32 irq_val = SDHCI_INT_CARD_INSERT | SDHCI_INT_CARD_REMOVE |
- SDHCI_INT_CARD_INT;
- val = sdhci_readb(host, SDHCI_WAKE_UP_CONTROL);
- val |= mask ;
- /* Avoid fake wake up */
- if (host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) {
- val &= ~(SDHCI_WAKE_ON_INSERT | SDHCI_WAKE_ON_REMOVE);
- irq_val &= ~(SDHCI_INT_CARD_INSERT | SDHCI_INT_CARD_REMOVE);
+ if (!(host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION)) {
+ wake_val |= SDHCI_WAKE_ON_INSERT | SDHCI_WAKE_ON_REMOVE;
+ irq_val |= SDHCI_INT_CARD_INSERT | SDHCI_INT_CARD_REMOVE;
}
+
+ wake_val |= SDHCI_WAKE_ON_INT;
+ irq_val |= SDHCI_INT_CARD_INT;
+
+ val = sdhci_readb(host, SDHCI_WAKE_UP_CONTROL);
+ val &= ~mask;
+ val |= wake_val;
sdhci_writeb(host, val, SDHCI_WAKE_UP_CONTROL);
+
sdhci_writel(host, irq_val, SDHCI_INT_ENABLE);
host->irq_wake_enabled = !enable_irq_wake(host->irq);