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| author | Hans de Goede <hdegoede@redhat.com> | 2015-06-13 15:37:47 +0300 |
|---|---|---|
| committer | Kishon Vijay Abraham I <kishon@ti.com> | 2015-07-25 13:15:47 +0300 |
| commit | 2846469631393a1cf150f17a99b8ca2b5772b255 (patch) | |
| tree | 9f47e448829ebc709310b49ba15e2098f1df6696 /drivers/phy/phy-sun4i-usb.c | |
| parent | 1a52abe6821da728b41187c6676b6ab7294e6e2c (diff) | |
| download | linux-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/phy-sun4i-usb.c')
| -rw-r--r-- | drivers/phy/phy-sun4i-usb.c | 8 |
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; |