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authorHans de Goede <hdegoede@redhat.com>2015-06-13 15:37:47 +0300
committerKishon Vijay Abraham I <kishon@ti.com>2015-07-25 13:15:47 +0300
commit2846469631393a1cf150f17a99b8ca2b5772b255 (patch)
tree9f47e448829ebc709310b49ba15e2098f1df6696 /drivers/phy
parent1a52abe6821da728b41187c6676b6ab7294e6e2c (diff)
downloadlinux-2846469631393a1cf150f17a99b8ca2b5772b255.tar.xz
phy-sun4i-usb: Swap check for disconnect threshold
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 <hdegoede@redhat.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Diffstat (limited to 'drivers/phy')
-rw-r--r--drivers/phy/phy-sun4i-usb.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/phy/phy-sun4i-usb.c b/drivers/phy/phy-sun4i-usb.c
index a6ea2e6b1d5c..50ecab9d73df 100644
--- a/drivers/phy/phy-sun4i-usb.c
+++ b/drivers/phy/phy-sun4i-usb.c
@@ -447,11 +447,11 @@ 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;