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| author | Vladimir Zapolskiy <vz@mleia.com> | 2016-11-09 03:56:36 +0300 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2016-11-09 19:48:56 +0300 |
| commit | 65a443ea54832cdf221c03c285930f0089c03f9a (patch) | |
| tree | e6a4c55fcd675fc76a7fddf78df217283cf2f3bd /drivers/ata | |
| parent | 07b9733fdad991ded44370badc8bad0c64c6660e (diff) | |
| download | linux-65a443ea54832cdf221c03c285930f0089c03f9a.tar.xz | |
pata: imx: set controller PIO mode with .set_piomode callback
Convert .set_mode callback function to more specific .set_piomode,
the driver does not have support of DMA modes, thus a simpler version
of the callback is preferred.
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'drivers/ata')
| -rw-r--r-- | drivers/ata/pata_imx.c | 27 |
1 files changed, 8 insertions, 19 deletions
diff --git a/drivers/ata/pata_imx.c b/drivers/ata/pata_imx.c index 203e3092ed07..00df18b07fa6 100644 --- a/drivers/ata/pata_imx.c +++ b/drivers/ata/pata_imx.c @@ -38,28 +38,17 @@ struct pata_imx_priv { u32 ata_ctl; }; -static int pata_imx_set_mode(struct ata_link *link, struct ata_device **unused) +static void pata_imx_set_piomode(struct ata_port *ap, struct ata_device *adev) { - struct ata_device *dev; - struct ata_port *ap = link->ap; struct pata_imx_priv *priv = ap->host->private_data; u32 val; - ata_for_each_dev(dev, link, ENABLED) { - dev->pio_mode = dev->xfer_mode = XFER_PIO_0; - dev->xfer_shift = ATA_SHIFT_PIO; - dev->flags |= ATA_DFLAG_PIO; - - val = __raw_readl(priv->host_regs + PATA_IMX_ATA_CONTROL); - if (ata_pio_need_iordy(dev)) - val |= PATA_IMX_ATA_CTRL_IORDY_EN; - else - val &= ~PATA_IMX_ATA_CTRL_IORDY_EN; - __raw_writel(val, priv->host_regs + PATA_IMX_ATA_CONTROL); - - ata_dev_info(dev, "configured for PIO\n"); - } - return 0; + val = __raw_readl(priv->host_regs + PATA_IMX_ATA_CONTROL); + if (ata_pio_need_iordy(adev)) + val |= PATA_IMX_ATA_CTRL_IORDY_EN; + else + val &= ~PATA_IMX_ATA_CTRL_IORDY_EN; + __raw_writel(val, priv->host_regs + PATA_IMX_ATA_CONTROL); } static struct scsi_host_template pata_imx_sht = { @@ -70,7 +59,7 @@ static struct ata_port_operations pata_imx_port_ops = { .inherits = &ata_sff_port_ops, .sff_data_xfer = ata_sff_data_xfer_noirq, .cable_detect = ata_cable_unknown, - .set_mode = pata_imx_set_mode, + .set_piomode = pata_imx_set_piomode, }; static void pata_imx_setup_port(struct ata_ioports *ioaddr) |