linux-kernel - [PATCH 5/5] usb: host: Enable building of new Broadcom STB USB drivers

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Date:   Wed, 26 Sep 2018 18:20:14 -0400
From:   Al Cooper <alcooperx@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     Al Cooper <alcooperx@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alan Stern <stern@...land.harvard.edu>,
        Mathias Nyman <mathias.nyman@...el.com>,
        Mauro Carvalho Chehab <mchehab+samsung@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Arnd Bergmann <arnd@...db.de>,
        Dmitry Osipenko <digetx@...il.com>,
        Chunfeng Yun <chunfeng.yun@...iatek.com>,
        Jianguo Sun <sunjianguo1@...wei.com>,
        James Hogan <jhogan@...nel.org>, Alban Bedel <albeu@...e.fr>,
        Lu Baolu <baolu.lu@...ux.intel.com>,
        Avi Fishman <avifishman70@...il.com>,
        Alex Elder <elder@...aro.org>,
        Hans de Goede <hdegoede@...hat.com>,
        linux-usb@...r.kernel.org, devicetree@...r.kernel.org,
        bcm-kernel-feedback-list@...adcom.com
Subject: [PATCH 5/5] usb: host: Enable building of new Broadcom STB USB drivers

Changes to Makefile and Kconfig to enable building of the new
Broadcom STB OHCI, EHCI and XHCI drivers. Also update MAINTAINERS.

Signed-off-by: Al Cooper <alcooperx@...il.com>
---
 MAINTAINERS               |  9 +++++++++
 drivers/usb/host/Kconfig  | 27 +++++++++++++++++++++++++++
 drivers/usb/host/Makefile |  7 +++++++
 3 files changed, 43 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index 02a39617ec82..9b8e7caad2ba 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3007,6 +3007,15 @@ S:	Supported
 F:	drivers/gpio/gpio-brcmstb.c
 F:	Documentation/devicetree/bindings/gpio/brcm,brcmstb-gpio.txt
 
+BROADCOM BRCMSTB USB XHCI, EHCI and OHCI DRIVERS
+M:	Al Cooper <alcooperx@...il.com>
+L:	linux-usb@...r.kernel.org
+L:	bcm-kernel-feedback-list@...adcom.com
+S:	Maintained
+F:	drivers/usb/host/xhci-brcm.c
+F:	drivers/usb/host/ehci-brcm.c
+F:	drivers/usb/host/ohci-brcm.c
+
 BROADCOM BRCMSTB USB2 and USB3 PHY DRIVER
 M:	Al Cooper <alcooperx@...il.com>
 L:	linux-kernel@...r.kernel.org
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 1a4ea98cac2a..1693a5076980 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -798,3 +798,30 @@ config USB_HCD_TEST_MODE
 	  This option is of interest only to developers who need to validate
 	  their USB hardware designs.  It is not needed for normal use.  If
 	  unsure, say N.
+
+config USB_OHCI_BRCM
+       tristate
+
+config USB_EHCI_BRCM
+       tristate
+
+config USB_XHCI_BRCM
+       tristate
+
+config BRCM_USB_PHY
+       tristate
+
+config USB_BRCM
+	tristate "Broadcom STB USB support"
+	depends on ARCH_BRCMSTB
+	select USB_OHCI_BRCM if USB_OHCI_HCD
+	select USB_EHCI_BRCM if USB_EHCI_HCD
+	select USB_XHCI_BRCM if USB_XHCI_HCD
+	select BRCM_USB_PHY if USB_OHCI_HCD || USB_EHCI_HCD || USB_XHCI_HCD
+	select GENERIC_PHY if BRCM_USB_PHY
+	default ARCH_BRCMSTB
+	help
+	  Say Y to enable the drivers for the onchip USB controllers.
+
+	  If your chipset supports power management, disabling this driver
+	  will keep the device permanently powered down.
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index e6235269c151..13e4f45a3a1d 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -91,3 +91,10 @@ obj-$(CONFIG_USB_HCD_BCMA)	+= bcma-hcd.o
 obj-$(CONFIG_USB_HCD_SSB)	+= ssb-hcd.o
 obj-$(CONFIG_USB_FOTG210_HCD)	+= fotg210-hcd.o
 obj-$(CONFIG_USB_MAX3421_HCD)	+= max3421-hcd.o
+
+# The order is important here because it controls the order that
+# the drivers will be initialized and we always need to init
+# the drivers in the order XHCI, EHCI and OHCI.
+obj-$(CONFIG_USB_XHCI_BRCM)	+= xhci-brcm.o
+obj-$(CONFIG_USB_EHCI_BRCM)	+= ehci-brcm.o
+obj-$(CONFIG_USB_OHCI_BRCM)	+= ohci-brcm.o
-- 
1.9.0.138.g2de3478