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ARM: mmci: no need to call flush_dcache_page() with sg_miter API 

The sg_miter API provides the required cache maintainence, so we don't
need to do that ourselves.  Remove the unnecessary additional cache
maintainence.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
hifive-unleashed-5.1
Russell King 2011-01-27 09:46:29 +00:00
parent c8afc9d59c
commit 7d7aa23cf0
1 changed files with 0 additions and 19 deletions
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19
drivers/mmc/host/mmci.c
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@ -311,22 +311,6 @@ mmci_data_irq(struct mmci_host *host, struct mmc_data *data,
data->error = -EIO;
}
host->data_xfered = round_down(success, data->blksz);
/*
* We hit an error condition. Ensure that any data
* partially written to a page is properly coherent.
*/
if (data->flags & MMC_DATA_READ) {
struct sg_mapping_iter *sg_miter = &host->sg_miter;
unsigned long flags;
local_irq_save(flags);
if (sg_miter_next(sg_miter)) {
flush_dcache_page(sg_miter->page);
sg_miter_stop(sg_miter);
}
local_irq_restore(flags);
}
}
if (status & MCI_DATABLOCKEND)
@ -510,9 +494,6 @@ static irqreturn_t mmci_pio_irq(int irq, void *dev_id)
if (remain)
break;
if (status & MCI_RXACTIVE)
flush_dcache_page(sg_miter->page);
status = readl(base + MMCISTATUS);
} while (1);