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authorJules Maselbas2019-05-09 11:15:28 +0200
committerFelipe Balbi2019-06-18 10:27:14 +0300
commit42de8afc40c97002fceb500e2331f6a722be3c14 (patch)
tree4d49fc692fcf5965c7a8f16632994a6567ad42ca /drivers/usb/dwc2/params.c
parent9e0babf2c06c73cda2c0cd37a1653d823adb40ec (diff)
usb: dwc2: Use generic PHY width in params setup
Setting params.phy_utmi_width in dwc2_lowlevel_hw_init() is pointless since it's value will be overwritten by dwc2_init_params(). This change make sure to take in account the generic PHY width information during paraminitialisation, done in dwc2_set_param_phy_utmi_width(). By doing so, the phy_utmi_width params can still be overrided by devicetree specific params and will also be checked against hardware capabilities. Fixes: 707d80f0a3c5 ("usb: dwc2: gadget: Replace phyif with phy_utmi_width") Acked-by: Minas Harutyunyan <hminas@synopsys.com> Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Jules Maselbas <jmaselbas@kalray.eu> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/dwc2/params.c')
-rw-r--r--drivers/usb/dwc2/params.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/usb/dwc2/params.c b/drivers/usb/dwc2/params.c
index 6900eea57526..5949262ff669 100644
--- a/drivers/usb/dwc2/params.c
+++ b/drivers/usb/dwc2/params.c
@@ -253,6 +253,15 @@ static void dwc2_set_param_phy_utmi_width(struct dwc2_hsotg *hsotg)
val = (hsotg->hw_params.utmi_phy_data_width ==
GHWCFG4_UTMI_PHY_DATA_WIDTH_8) ? 8 : 16;
+ if (hsotg->phy) {
+ /*
+ * If using the generic PHY framework, check if the PHY bus
+ * width is 8-bit and set the phyif appropriately.
+ */
+ if (phy_get_bus_width(hsotg->phy) == 8)
+ val = 8;
+ }
+
hsotg->params.phy_utmi_width = val;
}