[PATCH 1/2] ahci: st: Add ports-implemented property in support
From: <hidden>
Date: 2016-08-10 20:53:36
Also in:
linux-arm-kernel, lkml
Subsystem:
arm/sti architecture, libata subsystem (serial and parallel ata drivers), the rest · Maintainers:
Patrice Chotard, Damien Le Moal, Niklas Cassel, Linus Torvalds
From: Patrice Chotard <redacted> 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 <redacted> --- drivers/ata/ahci_st.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/ata/ahci_st.c b/drivers/ata/ahci_st.c
index 8ff428f..bc345f2 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) {
--
1.9.1