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| author | Phil Sutter <n0-1@freewrt.org> | 2009-01-27 14:35:52 +0100 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2009-03-24 22:02:39 -0400 |
| commit | 180bd147f18316d92bd5f59aebc9932cabc03edd (patch) | |
| tree | d22e40de0ad6b81d203d97218a11775ad1cab4cd /drivers/ata/pata_rb532_cf.c | |
| parent | bff9ad3c4c8fff340854d3912196ed470f94602c (diff) | |
| download | kernel_samsung_smdk4412-180bd147f18316d92bd5f59aebc9932cabc03edd.zip kernel_samsung_smdk4412-180bd147f18316d92bd5f59aebc9932cabc03edd.tar.gz kernel_samsung_smdk4412-180bd147f18316d92bd5f59aebc9932cabc03edd.tar.bz2 | |
pata-rb532-cf: use ata_sff_data_xfer32()
The biggest difference between rb532_pata_data_xfer() and
ata_sff_data_xfer32() is the call to ata_sff_pause() at the end of
rb532_pata_data_xfer() which I suppose to be unnecessary since it works
without. I've also tested using ata_sff_data_xfer() as replacement, but
since we know that the driver supports 32bit IO, using the optimised
version should be safe.
Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/ata/pata_rb532_cf.c')
| -rw-r--r-- | drivers/ata/pata_rb532_cf.c | 21 |
1 files changed, 1 insertions, 20 deletions
diff --git a/drivers/ata/pata_rb532_cf.c b/drivers/ata/pata_rb532_cf.c index 9d61ce5..9fb91e4 100644 --- a/drivers/ata/pata_rb532_cf.c +++ b/drivers/ata/pata_rb532_cf.c @@ -54,25 +54,6 @@ struct rb532_cf_info { /* ------------------------------------------------------------------------ */ -static unsigned int rb532_pata_data_xfer(struct ata_device *adev, unsigned char *buf, - unsigned int buflen, int write_data) -{ - struct ata_port *ap = adev->link->ap; - void __iomem *ioaddr = ap->ioaddr.data_addr; - int retlen = buflen; - - if (write_data) { - for (; buflen > 0; buflen--, buf++) - writeb(*buf, ioaddr); - } else { - for (; buflen > 0; buflen--, buf++) - *buf = readb(ioaddr); - } - - ata_sff_pause(ap); - return retlen; -} - static void rb532_pata_freeze(struct ata_port *ap) { struct rb532_cf_info *info = ap->host->private_data; @@ -105,7 +86,7 @@ static irqreturn_t rb532_pata_irq_handler(int irq, void *dev_instance) static struct ata_port_operations rb532_pata_port_ops = { .inherits = &ata_sff_port_ops, - .sff_data_xfer = rb532_pata_data_xfer, + .sff_data_xfer = ata_sff_data_xfer32, .freeze = rb532_pata_freeze, .thaw = rb532_pata_thaw, }; |