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| author | Patrice Chotard <patrice.chotard@st.com> | 2016-08-10 18:37:29 +0300 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2016-08-10 19:16:49 +0300 |
| commit | e7190699ca8c8daa52bfc62c01a71dea6decc9ee (patch) | |
| tree | 0e9abf2e98f60736e271f16cdfafa477e95dd88a | |
| parent | 16af080e47785d14919bf94bf8a4097c5c8529fb (diff) | |
| download | linux-e7190699ca8c8daa52bfc62c01a71dea6decc9ee.tar.xz | |
ahci: st: Add ports-implemented property in support
Despite ST AHCI version = 1.3, reading HOST_PORTS_IMPL
returns 0. So force_port_map to 1 by using ports-implemented
DT property.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
| -rw-r--r-- | drivers/ata/ahci_st.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/ata/ahci_st.c b/drivers/ata/ahci_st.c index 8ff428fe8e0f..bc345f249555 100644 --- a/drivers/ata/ahci_st.c +++ b/drivers/ata/ahci_st.c @@ -147,6 +147,7 @@ static struct scsi_host_template ahci_platform_sht = { static int st_ahci_probe(struct platform_device *pdev) { + struct device *dev = &pdev->dev; struct st_ahci_drv_data *drv_data; struct ahci_host_priv *hpriv; int err; @@ -170,6 +171,9 @@ static int st_ahci_probe(struct platform_device *pdev) st_ahci_configure_oob(hpriv->mmio); + of_property_read_u32(dev->of_node, + "ports-implemented", &hpriv->force_port_map); + err = ahci_platform_init_host(pdev, hpriv, &st_ahci_port_info, &ahci_platform_sht); if (err) { |