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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>
steinar/wifi_calib_4_9_kernel
Patrice Chotard 2016-08-10 17:37:29 +02:00 committed by Tejun Heo
parent 16af080e47
commit e7190699ca
1 changed files with 4 additions and 0 deletions
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4
drivers/ata/ahci_st.c
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@ -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) {