Commit 52782a1e authored by Andrew Lunn's avatar Andrew Lunn Committed by Greg Kroah-Hartman

Revert "ata: sata_mv: Convert to devm_ioremap_resource()"

commit 3e4240da upstream.

This reverts commit 368e5fbd.

devm_ioremap_resource() enforces that there are no overlapping
resources, where as devm_ioremap() does not. The sata phy driver needs
a subset of the sata IO address space, so maps some of the sata
address space. As a result, sata_mv now fails to probe, reporting it
cannot get its resources, and so we don't have any SATA disks.
Signed-off-by: default avatarAndrew Lunn <andrew@lunn.ch>
Acked-by: default avatarGregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: default avatarTejun Heo <tj@kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 93dfb4e6
......@@ -4067,7 +4067,6 @@ static int mv_platform_probe(struct platform_device *pdev)
struct ata_host *host;
struct mv_host_priv *hpriv;
struct resource *res;
void __iomem *mmio;
int n_ports = 0, irq = 0;
int rc;
int port;
......@@ -4086,9 +4085,8 @@ static int mv_platform_probe(struct platform_device *pdev)
* Get the register base first
*/
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
mmio = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(mmio))
return PTR_ERR(mmio);
if (res == NULL)
return -EINVAL;
/* allocate host */
if (pdev->dev.of_node) {
......@@ -4132,7 +4130,12 @@ static int mv_platform_probe(struct platform_device *pdev)
hpriv->board_idx = chip_soc;
host->iomap = NULL;
hpriv->base = mmio - SATAHC0_REG_BASE;
hpriv->base = devm_ioremap(&pdev->dev, res->start,
resource_size(res));
if (!hpriv->base)
return -ENOMEM;
hpriv->base -= SATAHC0_REG_BASE;
hpriv->clk = clk_get(&pdev->dev, NULL);
if (IS_ERR(hpriv->clk))
......
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