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54 lines
2.0 KiB
Diff
54 lines
2.0 KiB
Diff
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From a0cfdc6bc73bc47b63b05b850cf66cf67f2487bf Mon Sep 17 00:00:00 2001
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From: Lothar Waßmann <LW@KARO-electronics.de>
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Date: Wed, 14 Aug 2013 12:43:58 +0300
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Subject: [PATCH] usb: chipidea: improve kconfig 2.0
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This patch provides a cleaner solution to the problem described in
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commit 20a677fd ("usb: chipidea: improve kconfig").
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The goal to be achieved is to force USB_CHIPIDEA=m if either
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USB_EHCI_HCD=m or USB_GADGET=m.
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If both are 'y' USB_CHIPIDEA may be selected to be 'm' or 'y'.
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The old patch had the drawback, that USB_CHIPIDEA could be chosen as
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'y' though USB_EHCI_HCD or USB_GADGET (or both) were 'm' leading to a
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situation where USB_CHIPIDEA_HOST or USB_CHIPIDEA_UDC vanished from
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the config options producing a compilable but dysfunctional driver.
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Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
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Reviewed-by: Peter Chen <peter.chen@freescale.com>
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Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
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Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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---
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drivers/usb/chipidea/Kconfig | 7 +++----
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1 file changed, 3 insertions(+), 4 deletions(-)
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--- a/drivers/usb/chipidea/Kconfig
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+++ b/drivers/usb/chipidea/Kconfig
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@@ -1,6 +1,6 @@
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config USB_CHIPIDEA
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tristate "ChipIdea Highspeed Dual Role Controller"
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- depends on USB || USB_GADGET
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+ depends on (USB_EHCI_HCD && USB_GADGET) || (USB_EHCI_HCD && !USB_GADGET) || (!USB_EHCI_HCD && USB_GADGET)
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help
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Say Y here if your system has a dual role high speed USB
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controller based on ChipIdea silicon IP. Currently, only the
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@@ -12,15 +12,14 @@ if USB_CHIPIDEA
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config USB_CHIPIDEA_UDC
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bool "ChipIdea device controller"
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- depends on USB_GADGET=y || (USB_CHIPIDEA=m && USB_GADGET=m)
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+ depends on USB_GADGET
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help
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Say Y here to enable device controller functionality of the
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ChipIdea driver.
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config USB_CHIPIDEA_HOST
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bool "ChipIdea host controller"
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- depends on USB=y
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- depends on USB_EHCI_HCD=y || (USB_CHIPIDEA=m && USB_EHCI_HCD=m)
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+ depends on USB_EHCI_HCD
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select USB_EHCI_ROOT_HUB_TT
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help
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Say Y here to enable host controller functionality of the
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