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Date: Mon, 18 Apr 2016 16:05:14 +0800
From: Peter Chen <hzpeterchen@...il.com>
To: Roger Quadros <rogerq@...com>
Cc: stern@...land.harvard.edu, balbi@...nel.org,
gregkh@...uxfoundation.org, peter.chen@...escale.com,
dan.j.williams@...el.com, jun.li@...escale.com,
mathias.nyman@...ux.intel.com, tony@...mide.com,
Joao.Pinto@...opsys.com, abrestic@...omium.org,
r.baldyga@...sung.com, linux-usb@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-omap@...r.kernel.org
Subject: Re: [PATCH v6 06/12] usb: otg: get rid of CONFIG_USB_OTG_FSM in
favour of CONFIG_USB_OTG
On Tue, Apr 05, 2016 at 05:05:11PM +0300, Roger Quadros wrote:
> Let's use CONFIG_USB_OTG as a single config option to enable
> USB OTG and the OTG FSM. This makes things a lot less confusing.
>
> Update all users of CONFIG_USB_OTG_FSM to CONFIG_USB_OTG.
>
> Signed-off-by: Roger Quadros <rogerq@...com>
> ---
> Documentation/usb/chipidea.txt | 2 +-
> drivers/usb/Makefile | 1 +
> drivers/usb/chipidea/Makefile | 2 +-
> drivers/usb/chipidea/ci.h | 2 +-
> drivers/usb/chipidea/otg_fsm.h | 2 +-
> drivers/usb/common/Makefile | 3 ++-
> drivers/usb/core/Kconfig | 8 --------
> drivers/usb/phy/Kconfig | 2 +-
> 8 files changed, 8 insertions(+), 14 deletions(-)
>
> diff --git a/Documentation/usb/chipidea.txt b/Documentation/usb/chipidea.txt
> index 678741b..3b1f263 100644
> --- a/Documentation/usb/chipidea.txt
> +++ b/Documentation/usb/chipidea.txt
> @@ -5,7 +5,7 @@ with 2 Freescale i.MX6Q sabre SD boards.
>
> 1.1 How to enable OTG FSM in menuconfig
> ---------------------------------------
> -Select CONFIG_USB_OTG_FSM, rebuild kernel Image and modules.
> +Select CONFIG_USB_OTG, rebuild kernel Image and modules.
> If you want to check some internal variables for otg fsm,
> mount debugfs, there are 2 files which can show otg fsm
> variables and some controller registers value:
> diff --git a/drivers/usb/Makefile b/drivers/usb/Makefile
> index dca7856..16a5b55 100644
> --- a/drivers/usb/Makefile
> +++ b/drivers/usb/Makefile
> @@ -59,5 +59,6 @@ obj-$(CONFIG_USB_RENESAS_USBHS) += renesas_usbhs/
> obj-$(CONFIG_USB_GADGET) += gadget/
>
> obj-$(CONFIG_USB_COMMON) += common/
> +obj-$(CONFIG_USB_OTG) += common/
Why we need to add above line?
Peter
>
> obj-$(CONFIG_USBIP_CORE) += usbip/
> diff --git a/drivers/usb/chipidea/Makefile b/drivers/usb/chipidea/Makefile
> index 518e445..45aa24d 100644
> --- a/drivers/usb/chipidea/Makefile
> +++ b/drivers/usb/chipidea/Makefile
> @@ -3,7 +3,7 @@ obj-$(CONFIG_USB_CHIPIDEA) += ci_hdrc.o
> ci_hdrc-y := core.o otg.o debug.o
> ci_hdrc-$(CONFIG_USB_CHIPIDEA_UDC) += udc.o
> ci_hdrc-$(CONFIG_USB_CHIPIDEA_HOST) += host.o
> -ci_hdrc-$(CONFIG_USB_OTG_FSM) += otg_fsm.o
> +ci_hdrc-$(CONFIG_USB_OTG) += otg_fsm.o
>
> # Glue/Bridge layers go here
>
> diff --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h
> index c523975..1a32b8c 100644
> --- a/drivers/usb/chipidea/ci.h
> +++ b/drivers/usb/chipidea/ci.h
> @@ -406,7 +406,7 @@ static inline u32 hw_test_and_write(struct ci_hdrc *ci, enum ci_hw_regs reg,
> */
> static inline bool ci_otg_is_fsm_mode(struct ci_hdrc *ci)
> {
> -#ifdef CONFIG_USB_OTG_FSM
> +#ifdef CONFIG_USB_OTG
> struct usb_otg_caps *otg_caps = &ci->platdata->ci_otg_caps;
>
> return ci->is_otg && ci->roles[CI_ROLE_HOST] &&
> diff --git a/drivers/usb/chipidea/otg_fsm.h b/drivers/usb/chipidea/otg_fsm.h
> index 6366fe3..2d451bb 100644
> --- a/drivers/usb/chipidea/otg_fsm.h
> +++ b/drivers/usb/chipidea/otg_fsm.h
> @@ -64,7 +64,7 @@
>
> #define TB_AIDL_BDIS (20) /* 4ms ~ 150ms, section 5.2.1 */
>
> -#if IS_ENABLED(CONFIG_USB_OTG_FSM)
> +#if IS_ENABLED(CONFIG_USB_OTG)
>
> int ci_hdrc_otg_fsm_init(struct ci_hdrc *ci);
> int ci_otg_fsm_work(struct ci_hdrc *ci);
> diff --git a/drivers/usb/common/Makefile b/drivers/usb/common/Makefile
> index 6bbb3ec..f8f2c88 100644
> --- a/drivers/usb/common/Makefile
> +++ b/drivers/usb/common/Makefile
> @@ -6,5 +6,6 @@ obj-$(CONFIG_USB_COMMON) += usb-common.o
> usb-common-y += common.o
> usb-common-$(CONFIG_USB_LED_TRIG) += led.o
>
> -obj-$(CONFIG_USB_OTG_FSM) += usb-otg-fsm.o
> obj-$(CONFIG_USB_ULPI_BUS) += ulpi.o
> +usbotg-y := usb-otg-fsm.o
> +obj-$(CONFIG_USB_OTG) += usbotg.o
> diff --git a/drivers/usb/core/Kconfig b/drivers/usb/core/Kconfig
> index dd28010..ae228d0 100644
> --- a/drivers/usb/core/Kconfig
> +++ b/drivers/usb/core/Kconfig
> @@ -75,14 +75,6 @@ config USB_OTG_BLACKLIST_HUB
> and software costs by not supporting external hubs. So
> are "Embedded Hosts" that don't offer OTG support.
>
> -config USB_OTG_FSM
> - tristate "USB 2.0 OTG FSM implementation"
> - depends on USB && USB_OTG
> - select USB_PHY
> - help
> - Implements OTG Finite State Machine as specified in On-The-Go
> - and Embedded Host Supplement to the USB Revision 2.0 Specification.
> -
> config USB_ULPI_BUS
> tristate "USB ULPI PHY interface support"
> depends on USB_SUPPORT
> diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig
> index c690474..06794e2 100644
> --- a/drivers/usb/phy/Kconfig
> +++ b/drivers/usb/phy/Kconfig
> @@ -20,7 +20,7 @@ config AB8500_USB
>
> config FSL_USB2_OTG
> bool "Freescale USB OTG Transceiver Driver"
> - depends on USB_EHCI_FSL && USB_FSL_USB2 && USB_OTG_FSM && PM
> + depends on USB_EHCI_FSL && USB_FSL_USB2 && USB_OTG && PM
> select USB_PHY
> help
> Enable this to support Freescale USB OTG transceiver.
> --
> 2.5.0
>
> --
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--
Best Regards,
Peter Chen
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