diff options
| author | Adrian Hunter <adrian.hunter@intel.com> | 2018-01-09 09:52:22 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2018-01-17 12:30:43 +0100 |
| commit | 81b14543ac81d529d6c07ce3be0cdfc9fe417389 (patch) | |
| tree | 3457a9c680b6efb139ad13f9054c1a435537518b /drivers/mmc/host/sdhci.c | |
| parent | 58e79b60751d1ea6d13e09c6095f5e4cd5e040ee (diff) | |
| download | linux-81b14543ac81d529d6c07ce3be0cdfc9fe417389.tar.bz2 | |
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/sdhci.c')
| -rw-r--r-- | drivers/mmc/host/sdhci.c | 25 |
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); |