Commit 2dc240a3 authored by Felipe Balbi's avatar Felipe Balbi Committed by Greg Kroah-Hartman

usb: host: xhci: rcar: retire use of xhci_plat_type_is()

We're preparing to remove xhci_plat_type_is() in
favor of a better approach where we define function
pointers ahead of time. This will let us make
assumptions about which platforms we're running on
and which platform-specific functions we should call.
Acked-by: default avatarYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: default avatarFelipe Balbi <felipe.balbi@linux.intel.com>
[delete extra comma in function parameters -Mathias]
Signed-off-by: default avatarMathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 78140156
...@@ -11,6 +11,7 @@ ...@@ -11,6 +11,7 @@
#include <linux/firmware.h> #include <linux/firmware.h>
#include <linux/module.h> #include <linux/module.h>
#include <linux/platform_device.h> #include <linux/platform_device.h>
#include <linux/of.h>
#include <linux/usb/phy.h> #include <linux/usb/phy.h>
#include "xhci.h" #include "xhci.h"
...@@ -76,6 +77,24 @@ static void xhci_rcar_start_gen2(struct usb_hcd *hcd) ...@@ -76,6 +77,24 @@ static void xhci_rcar_start_gen2(struct usb_hcd *hcd)
writel(RCAR_USB3_TX_POL_VAL, hcd->regs + RCAR_USB3_TX_POL); writel(RCAR_USB3_TX_POL_VAL, hcd->regs + RCAR_USB3_TX_POL);
} }
static int xhci_rcar_is_gen2(struct device *dev)
{
struct device_node *node = dev->of_node;
return of_device_is_compatible(node, "renesas,xhci-r8a7790") ||
of_device_is_compatible(node, "renesas,xhci-r8a7791") ||
of_device_is_compatible(node, "renesas,xhci-r8a7793") ||
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) void xhci_rcar_start(struct usb_hcd *hcd)
{ {
u32 temp; u32 temp;
...@@ -85,7 +104,7 @@ void xhci_rcar_start(struct usb_hcd *hcd) ...@@ -85,7 +104,7 @@ void xhci_rcar_start(struct usb_hcd *hcd)
temp = readl(hcd->regs + RCAR_USB3_INT_ENA); temp = readl(hcd->regs + RCAR_USB3_INT_ENA);
temp |= RCAR_USB3_INT_ENA_VAL; temp |= RCAR_USB3_INT_ENA_VAL;
writel(temp, hcd->regs + RCAR_USB3_INT_ENA); writel(temp, hcd->regs + RCAR_USB3_INT_ENA);
if (xhci_plat_type_is(hcd, XHCI_PLAT_TYPE_RENESAS_RCAR_GEN2)) if (xhci_rcar_is_gen2(hcd->self.controller))
xhci_rcar_start_gen2(hcd); xhci_rcar_start_gen2(hcd);
} }
} }
...@@ -156,9 +175,22 @@ static int xhci_rcar_download_firmware(struct usb_hcd *hcd) ...@@ -156,9 +175,22 @@ static int xhci_rcar_download_firmware(struct usb_hcd *hcd)
/* This function needs to initialize a "phy" of usb before */ /* This function needs to initialize a "phy" of usb before */
int xhci_rcar_init_quirk(struct usb_hcd *hcd) 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 is NULL, we don't just call the following function */
if (!hcd->regs) if (!hcd->regs)
return 0; 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); return xhci_rcar_download_firmware(hcd);
} }
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