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| author |   Andrew Lunn <andrew@lunn.ch> | 2017-05-24 01:39:35 +0200 |
|---|---|---|
| committer |   Tejun Heo <tj@kernel.org> | 2017-05-24 10:56:32 -0400 |
| commit | 3e4240da0e3673637c1c995bdd14cfdbc8f4dc4c (patch) | |
| tree | dbacf81aeb873fa96ab3fec46f1161f7add95cb6 /drivers/ata | |
| parent | ata: libahci: properly propagate return value of platform_get_irq() (diff) | |
| download | wireguard-linux-3e4240da0e3673637c1c995bdd14cfdbc8f4dc4c.tar.xz wireguard-linux-3e4240da0e3673637c1c995bdd14cfdbc8f4dc4c.zip | |
Revert "ata: sata_mv: Convert to devm_ioremap_resource()"
This reverts commit 368e5fbdfc60732643f34f538823ed4bc8829827.
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: Andrew Lunn <andrew@lunn.ch>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Cc: stable@vger.kernel.org # v4.11+
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'drivers/ata')
| -rw-r--r-- | drivers/ata/sata_mv.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index b66bcda88320..3b2246dded74 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -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)) |