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mmc: tmio: discard obsolete SDIO irqs before enabling irqs

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Before enabling SDIO irqs, clear the status bit, so we discard old and
stale interrupts. Needed to get two wireless cards working. Use the
newly introduced macro in all places.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Wolfram Sang
2017-01-19 21:07:18 +01:00
committed by Ulf Hansson
parent 20dd03734c
commit ee28981535
2 changed files with 13 additions and 2 deletions
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13
drivers/mmc/host/tmio_mmc_pio.c
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@@ -134,12 +134,21 @@ static void tmio_mmc_enable_sdio_irq(struct mmc_host *mmc, int enable)
struct tmio_mmc_host *host = mmc_priv(mmc);
if (enable && !host->sdio_irq_enabled) {
u16 sdio_status;
/* Keep device active while SDIO irq is enabled */
pm_runtime_get_sync(mmc_dev(mmc));
host->sdio_irq_enabled = true;
host->sdio_irq_enabled = true;
host->sdio_irq_mask = TMIO_SDIO_MASK_ALL &
~TMIO_SDIO_STAT_IOIRQ;
/* Clear obsolete interrupts before enabling */
sdio_status = sd_ctrl_read16(host, CTL_SDIO_STATUS) & ~TMIO_SDIO_MASK_ALL;
if (host->pdata->flags & TMIO_MMC_SDIO_STATUS_SETBITS)
sdio_status |= TMIO_SDIO_SETBITS_MASK;
sd_ctrl_write16(host, CTL_SDIO_STATUS, sdio_status);
sd_ctrl_write16(host, CTL_SDIO_IRQ_MASK, host->sdio_irq_mask);
} else if (!enable && host->sdio_irq_enabled) {
host->sdio_irq_mask = TMIO_SDIO_MASK_ALL;
@@ -724,7 +733,7 @@ static void __tmio_mmc_sdio_irq(struct tmio_mmc_host *host)
sdio_status = status & ~TMIO_SDIO_MASK_ALL;
if (pdata->flags & TMIO_MMC_SDIO_STATUS_SETBITS)
sdio_status |= 6;
sdio_status |= TMIO_SDIO_SETBITS_MASK;
sd_ctrl_write16(host, CTL_SDIO_STATUS, sdio_status);