Since the commit b1c127ae (usb: host: xhci: plat: make use of new methods
in xhci_plat_priv) changed the setting timing of xhci->quirks to
xhci_rcar_init_quirk(), the quirks was overwritten by xhci_gen_setup().
So, this patch fixes the issue using a "quirks" of struct xhci_plat_priv.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda...@renesas.com>
---
drivers/usb/host/xhci-plat.c | 12 +++++++++++-
drivers/usb/host/xhci-plat.h | 1 +
drivers/usb/host/xhci-rcar.c | 21 ---------------------
3 files changed, 12 insertions(+), 22 deletions(-)
diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index 676ea45..7f03608 100644
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -57,12 +57,14 @@ static int xhci_priv_init_quirk(struct usb_hcd *hcd)
static void xhci_plat_quirks(struct device *dev, struct xhci_hcd *xhci)
{
+ struct xhci_plat_priv *priv = xhci_to_priv(xhci);
+
/*
* As of now platform drivers don't provide MSI support so we ensure
* here that the generic code does not try to make a pci_dev from our
* dev struct in order to setup MSI
*/
- xhci->quirks |= XHCI_PLAT;
+ xhci->quirks |= XHCI_PLAT | priv->quirks;
}
/* called during probe() after chip reset completes */
@@ -89,16 +91,24 @@ static const struct xhci_plat_priv xhci_plat_marvell_armada
= {
.init_quirk = xhci_mvebu_mbus_init_quirk,
};
+/*
+ * On R-Car Gen2 and Gen3, the AC64 bit (bit 0) of HCCPARAMS1 is set to 1.
+ * However, these SoCs don't support 64-bit address memory pointers. So, this
+ * driver clears the AC64 bit of xhci->hcc_params to call
+ * dma_set_coherent_mask(dev, DMA_BIT_MASK(32)) in xhci_gen_setup().
+ */
static const struct xhci_plat_priv xhci_plat_renesas_rcar_gen2 = {
.firmware_name = XHCI_RCAR_FIRMWARE_NAME_V1,
.init_quirk = xhci_rcar_init_quirk,
.plat_start = xhci_rcar_start,
+ .quirks = XHCI_NO_64BIT_SUPPORT,
};
static const struct xhci_plat_priv xhci_plat_renesas_rcar_gen3 = {
.firmware_name = XHCI_RCAR_FIRMWARE_NAME_V2,
.init_quirk = xhci_rcar_init_quirk,
.plat_start = xhci_rcar_start,
+ .quirks = XHCI_NO_64BIT_SUPPORT,
};
static const struct of_device_id usb_xhci_of_match[] = {
diff --git a/drivers/usb/host/xhci-plat.h b/drivers/usb/host/xhci-plat.h
index c652f33..15144c9 100644
--- a/drivers/usb/host/xhci-plat.h
+++ b/drivers/usb/host/xhci-plat.h
@@ -20,5 +20,6 @@ struct xhci_plat_priv {
unsigned int quirks;
};
+#define xhci_to_priv(x) ((struct xhci_plat_priv *)(x)->priv)
#define hcd_to_xhci_priv(h) ((struct xhci_plat_priv *)hcd_to_xhci(h)->priv)
#endif /* _XHCI_PLAT_H */
diff --git a/drivers/usb/host/xhci-rcar.c b/drivers/usb/host/xhci-rcar.c
index 0e4535e..2617cd7 100644
--- a/drivers/usb/host/xhci-rcar.c
+++ b/drivers/usb/host/xhci-rcar.c
@@ -87,14 +87,6 @@ static int xhci_rcar_is_gen2(struct device *dev)
of_device_is_compatible(node, "renensas,rcar-gen2-xhci");
}
-static int xhci_rcar_is_gen3(struct device *dev)
-{
- struct device_node *node = dev->of_node;
-
- return of_device_is_compatible(node, "renesas,xhci-r8a7795") ||
- of_device_is_compatible(node, "renesas,rcar-gen3-xhci");
-}
-
void xhci_rcar_start(struct usb_hcd *hcd)
{
u32 temp;
@@ -175,22 +167,9 @@ static int xhci_rcar_download_firmware(struct usb_hcd *hcd)
/* This function needs to initialize a "phy" of usb before */
int xhci_rcar_init_quirk(struct usb_hcd *hcd)
{
- struct xhci_hcd *xhci = hcd_to_xhci(hcd);
-
/* If hcd->regs is NULL, we don't just call the following function */
if (!hcd->regs)
return 0;
- /*
- * On R-Car Gen2 and Gen3, the AC64 bit (bit 0) of HCCPARAMS1 is set
- * to 1. However, these SoCs don't support 64-bit address memory
- * pointers. So, this driver clears the AC64 bit of xhci->hcc_params
- * to call dma_set_coherent_mask(dev, DMA_BIT_MASK(32)) in
- * xhci_gen_setup().
- */
- if (xhci_rcar_is_gen2(hcd->self.controller) ||
- xhci_rcar_is_gen3(hcd->self.controller))
- xhci->quirks |= XHCI_NO_64BIT_SUPPORT;
-
return xhci_rcar_download_firmware(hcd);
}
--
1.9.1
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