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usb: host: xhci: plat: add support for Renesas r8a7796 SoC 

This patch adds support for Renesas r8a7796 SoC. This SoC is not
compatible with r8a7795 because using firmware version differs.

Since the "V2" firmware can be used on both r8a7795 (es1.x) and r8a7796,
the "renesas,rcar-gen3-xhci" keeps to use the "V2" for now.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Yoshihiro Shimoda 2016-11-11 15:13:27 +02:00 committed by Greg Kroah-Hartman
parent 125f0c0ca0
commit 3f1dae6b19
3 changed files with 11 additions and 0 deletions
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1
Documentation/devicetree/bindings/usb/usb-xhci.txt
View File

@ -11,6 +11,7 @@ Required properties:
- "renesas,xhci-r8a7791" for r8a7791 SoC
- "renesas,xhci-r8a7793" for r8a7793 SoC
- "renesas,xhci-r8a7795" for r8a7795 SoC
- "renesas,xhci-r8a7796" for r8a7796 SoC
- "renesas,rcar-gen2-xhci" for a generic R-Car Gen2 compatible device
- "renesas,rcar-gen3-xhci" for a generic R-Car Gen3 compatible device
- "xhci-platform" (deprecated)

9
drivers/usb/host/xhci-plat.c
View File

@ -100,6 +100,12 @@ static const struct xhci_plat_priv xhci_plat_renesas_rcar_gen3 = {
.plat_start = xhci_rcar_start,
};
static const struct xhci_plat_priv xhci_plat_renesas_rcar_r8a7796 = {
.firmware_name = XHCI_RCAR_FIRMWARE_NAME_V3,
.init_quirk = xhci_rcar_init_quirk,
.plat_start = xhci_rcar_start,
};
static const struct of_device_id usb_xhci_of_match[] = {
{
.compatible = "generic-xhci",
@ -123,6 +129,9 @@ static const struct of_device_id usb_xhci_of_match[] = {
}, {
.compatible = "renesas,xhci-r8a7795",
.data = &xhci_plat_renesas_rcar_gen3,
}, {
.compatible = "renesas,xhci-r8a7796",
.data = &xhci_plat_renesas_rcar_r8a7796,
}, {
.compatible = "renesas,rcar-gen2-xhci",
.data = &xhci_plat_renesas_rcar_gen2,

1
drivers/usb/host/xhci-rcar.c
View File

@ -95,6 +95,7 @@ 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,xhci-r8a7796") ||
of_device_is_compatible(node, "renesas,rcar-gen3-xhci");
}