Sprinkle some mmiowb() where needed (writeX() before unlock()).
Signed-off-by: Pierre Ossman <[email protected]>
---
drivers/mmc/sdhci.c | 8 ++++++++
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c
index 4dab5ec..9ff9231 100644
--- a/drivers/mmc/sdhci.c
+++ b/drivers/mmc/sdhci.c
@@ -717,6 +717,7 @@ static void sdhci_request(struct mmc_hos
} else
sdhci_send_command(host, mrq->cmd);
+ mmiowb();
spin_unlock_irqrestore(&host->lock, flags);
}
@@ -753,6 +754,7 @@ static void sdhci_set_ios(struct mmc_hos
ctrl &= ~SDHCI_CTRL_4BITBUS;
writeb(ctrl, host->ioaddr + SDHCI_HOST_CONTROL);
+ mmiowb();
spin_unlock_irqrestore(&host->lock, flags);
}
@@ -860,6 +862,7 @@ static void sdhci_tasklet_finish(unsigne
sdhci_deactivate_led(host);
+ mmiowb();
spin_unlock_irqrestore(&host->lock, flags);
mmc_request_done(host->mmc, mrq);
@@ -893,6 +896,7 @@ static void sdhci_timeout_timer(unsigned
}
}
+ mmiowb();
spin_unlock_irqrestore(&host->lock, flags);
}
@@ -1030,6 +1034,7 @@ static irqreturn_t sdhci_irq(int irq, vo
result = IRQ_HANDLED;
+ mmiowb();
out:
spin_unlock(&host->lock);
@@ -1095,6 +1100,7 @@ static int sdhci_resume (struct pci_dev
if (chip->hosts[i]->flags & SDHCI_USE_DMA)
pci_set_master(pdev);
sdhci_init(chip->hosts[i]);
+ mmiowb();
ret = mmc_resume_host(chip->hosts[i]->mmc);
if (ret)
return ret;
@@ -1327,6 +1333,8 @@ #endif
host->chip = chip;
chip->hosts[slot] = host;
+ mmiowb();
+
mmc_add_host(mmc);
printk(KERN_INFO "%s: SDHCI at 0x%08lx irq %d %s\n", mmc_hostname(mmc),