Before this commit the code for determining the disconnect threshold was
checking for "allwinner,sun4i-a10-usb-phy" or "allwinner,sun6i-a31-usb-phy"
assuming that those where the exception and then newer SoCs would use a
disconnect threshold of 2 like sun7i does. But it turns out that newer
SoCs use a disconnect threshold of 3 and sun5i and sun7i are the
exceptions, so check for those instead.
Here are the settings from the various Allwinner SDK sources:
sun4i-a10: USBC_Phy_Write(usbc_no, 0x2a, 3, 2);
sun5i-a13: USBC_Phy_Write(usbc_no, 0x2a, 2, 2);
sun6i-a31: USBC_Phy_Write(usbc_no, 0x2a, 3, 2);
sun7i-a20: USBC_Phy_Write(usbc_no, 0x2a, 2, 2);
sun8i-a23: USBC_Phy_Write(usbc_no, 0x2a, 3, 2);
sun8i-h3: USBC_Phy_Write(usbc_no, 0x2a, 3, 2);
sun9i-a80: USBC_Phy_Write(usbc_no, 0x2a, 3, 2);
Note this commit makes no functional changes as currently we only support
sun4i - sun7i.
Signed-off-by: Hans de Goede <hdego...@redhat.com>
---
drivers/phy/phy-sun4i-usb.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/phy/phy-sun4i-usb.c b/drivers/phy/phy-sun4i-usb.c
index b45d707..0df1c4f 100644
--- a/drivers/phy/phy-sun4i-usb.c
+++ b/drivers/phy/phy-sun4i-usb.c
@@ -437,11 +437,11 @@ static int sun4i_usb_phy_probe(struct platform_device
*pdev)
else
data->num_phys = 3;
- if (of_device_is_compatible(np, "allwinner,sun4i-a10-usb-phy") ||
- of_device_is_compatible(np, "allwinner,sun6i-a31-usb-phy"))
- data->disc_thresh = 3;
- else
+ if (of_device_is_compatible(np, "allwinner,sun5i-a13-usb-phy") ||
+ of_device_is_compatible(np, "allwinner,sun7i-a20-usb-phy"))
data->disc_thresh = 2;
+ else
+ data->disc_thresh = 3;
if (of_device_is_compatible(np, "allwinner,sun6i-a31-usb-phy"))
dedicated_clocks = true;
--
2.4.2
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