linux-kernel - [PATCH v7 5/5] usb: host: Add ability to build new Broadcom STB USB drivers

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Message-Id: <20200507173408.20754-6-alcooperx@gmail.com>
Date:   Thu,  7 May 2020 13:34:08 -0400
From:   Al Cooper <alcooperx@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     Al Cooper <alcooperx@...il.com>,
        Alan Stern <stern@...land.harvard.edu>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        bcm-kernel-feedback-list@...adcom.com, devicetree@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        linux-usb@...r.kernel.org, Mathias Nyman <mathias.nyman@...el.com>,
        Rob Herring <robh+dt@...nel.org>,
        Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH v7 5/5] usb: host: Add ability to build new Broadcom STB USB drivers

Add the build system changes needed to get the Broadcom STB XHCI,
EHCI and OHCI functionality working. The OHCI support does not
require anything unique to Broadcom so the standard ohci-platform
driver is being used. Also update MAINTAINERS.

Signed-off-by: Al Cooper <alcooperx@...il.com>
---
 MAINTAINERS               |  8 ++++++++
 drivers/usb/host/Kconfig  | 20 ++++++++++++++++++++
 drivers/usb/host/Makefile |  1 +
 3 files changed, 29 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index 2926327e4976..fb55300c2a84 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3481,6 +3481,14 @@ S:	Supported
 F:	Documentation/devicetree/bindings/i2c/brcm,brcmstb-i2c.yaml
 F:	drivers/i2c/busses/i2c-brcmstb.c
 
+BROADCOM BRCMSTB USB EHCI DRIVER
+M:	Al Cooper <alcooperx@...il.com>
+L:	linux-usb@...r.kernel.org
+L:	bcm-kernel-feedback-list@...adcom.com
+S:	Maintained
+F:	Documentation/devicetree/bindings/usb/brcm,bcm7445-ehci.yaml
+F:	drivers/usb/host/ehci-brcm.*
+
 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 55bdfdf11e4c..973386bbb522 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -97,6 +97,26 @@ config USB_XHCI_TEGRA
 
 endif # USB_XHCI_HCD
 
+config USB_EHCI_BRCMSTB
+       tristate
+
+config USB_BRCMSTB
+	tristate "Broadcom STB USB support"
+	depends on (ARCH_BRCMSTB && PHY_BRCM_USB) || COMPILE_TEST
+	select USB_OHCI_HCD_PLATFORM if USB_OHCI_HCD
+	select USB_EHCI_BRCMSTB if USB_EHCI_HCD
+	select USB_XHCI_PLATFORM if USB_XHCI_HCD
+	help
+	  Enables support for XHCI, EHCI and OHCI host controllers
+	  found in Broadcom STB SoC's.
+
+	  To compile these drivers as modules, choose M here: the
+	  modules will be called ohci-platform.ko, ehci-brcm.ko and
+	  xhci-plat-hcd.ko
+
+	  Disabling this will keep the controllers and corresponding
+	  PHYs powered down.
+
 config USB_EHCI_HCD
 	tristate "EHCI HCD (USB 2.0) support"
 	depends on HAS_DMA && HAS_IOMEM
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index a7f0b8ff7179..265e26cf9209 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -59,6 +59,7 @@ obj-$(CONFIG_USB_EHCI_HCD_STI)	+= ehci-st.o
 obj-$(CONFIG_USB_EHCI_EXYNOS)	+= ehci-exynos.o
 obj-$(CONFIG_USB_EHCI_HCD_AT91) += ehci-atmel.o
 obj-$(CONFIG_USB_EHCI_TEGRA)	+= ehci-tegra.o
+obj-$(CONFIG_USB_EHCI_BRCMSTB)	+= ehci-brcm.o
 
 obj-$(CONFIG_USB_OXU210HP_HCD)	+= oxu210hp-hcd.o
 obj-$(CONFIG_USB_ISP116X_HCD)	+= isp116x-hcd.o
-- 
2.17.1