Peter Chen <peter.chen@xxxxxxxxxxxxx> writes:
> This file is mainly used to access otgsc currently, it may
> add otg related things in the future.
>
> Tested-by: Marek Vasut <marex@xxxxxxx>
> Signed-off-by: Peter Chen <peter.chen@xxxxxxxxxxxxx>
> ---
> drivers/usb/chipidea/Makefile | 2 +-
> drivers/usb/chipidea/bits.h | 10 ++++++++
> drivers/usb/chipidea/core.c | 3 +-
> drivers/usb/chipidea/otg.c | 50 +++++++++++++++++++++++++++++++++++++++++
> drivers/usb/chipidea/otg.h | 19 +++++++++++++++
> 5 files changed, 82 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/usb/chipidea/Makefile b/drivers/usb/chipidea/Makefile
> index 6cf5f68..a99d980 100644
> --- a/drivers/usb/chipidea/Makefile
> +++ b/drivers/usb/chipidea/Makefile
> @@ -2,7 +2,7 @@ ccflags-$(CONFIG_USB_CHIPIDEA_DEBUG) := -DDEBUG
>
> obj-$(CONFIG_USB_CHIPIDEA) += ci_hdrc.o
>
> -ci_hdrc-y := core.o
> +ci_hdrc-y := core.o otg.o
> ci_hdrc-$(CONFIG_USB_CHIPIDEA_UDC) += udc.o
> ci_hdrc-$(CONFIG_USB_CHIPIDEA_HOST) += host.o
> ci_hdrc-$(CONFIG_USB_CHIPIDEA_DEBUG) += debug.o
> diff --git a/drivers/usb/chipidea/bits.h b/drivers/usb/chipidea/bits.h
> index aefa026..dd0cf9e 100644
> --- a/drivers/usb/chipidea/bits.h
> +++ b/drivers/usb/chipidea/bits.h
> @@ -79,11 +79,21 @@
> #define OTGSC_ASVIS BIT(18)
> #define OTGSC_BSVIS BIT(19)
> #define OTGSC_BSEIS BIT(20)
> +#define OTGSC_1MSIS BIT(21)
> +#define OTGSC_DPIS BIT(22)
> #define OTGSC_IDIE BIT(24)
> #define OTGSC_AVVIE BIT(25)
> #define OTGSC_ASVIE BIT(26)
> #define OTGSC_BSVIE BIT(27)
> #define OTGSC_BSEIE BIT(28)
> +#define OTGSC_1MSIE BIT(29)
> +#define OTGSC_DPIE BIT(30)
> +#define OTGSC_INT_EN_BITS (OTGSC_IDIE | OTGSC_AVVIE | OTGSC_ASVIE \
> + | OTGSC_BSVIE | OTGSC_BSEIE | OTGSC_1MSIE \
> + | OTGSC_DPIE)
> +#define OTGSC_INT_STATUS_BITS (OTGSC_IDIS | OTGSC_AVVIS | OTGSC_ASVIS \
> + | OTGSC_BSVIS | OTGSC_BSEIS | OTGSC_1MSIS \
> + | OTGSC_DPIS)
>
> /* USBMODE */
> #define USBMODE_CM (0x03UL << 0)
> diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
> index 26f6599..a4be8a5 100644
> --- a/drivers/usb/chipidea/core.c
> +++ b/drivers/usb/chipidea/core.c
> @@ -72,6 +72,7 @@
> #include "bits.h"
> #include "host.h"
> #include "debug.h"
> +#include "otg.h"
>
> /* Controller register map */
> static uintptr_t ci_regs_nolpm[] = {
> @@ -530,7 +531,7 @@ static int ci_hdrc_probe(struct platform_device *pdev)
> goto stop;
>
> if (ci->is_otg)
> - hw_write(ci, OP_OTGSC, OTGSC_IDIE, OTGSC_IDIE);
> + ci_hdrc_otg_init(ci);
>
> ret = dbg_create_files(ci);
> if (!ret)
> diff --git a/drivers/usb/chipidea/otg.c b/drivers/usb/chipidea/otg.c
> new file mode 100644
> index 0000000..abefb4d
> --- /dev/null
> +++ b/drivers/usb/chipidea/otg.c
> @@ -0,0 +1,50 @@
> +/*
> + * otg.c - ChipIdea USB IP core OTG driver
> + *
> + * Copyright (C) 2013 Freescale Semiconductor, Inc.
> + *
> + * Author: Peter Chen
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + */
> +
> +/*
> + * This file mainly handles otgsc register, it may include OTG operation
> + * in the future.
> + */
> +
> +#include <linux/usb/otg.h>
> +#include <linux/usb/gadget.h>
> +#include <linux/usb/chipidea.h>
> +
> +#include "ci.h"
> +#include "bits.h"
You don't include otg.h here, which makes sparse think that you wanted
these functions to be static.
> +
> +void ci_clear_otg_interrupt(struct ci_hdrc *ci, u32 bits)
> +{
> + /* Only clear request bits */
> + hw_write(ci, OP_OTGSC, OTGSC_INT_STATUS_BITS, bits);
> +}
> +
> +void ci_enable_otg_interrupt(struct ci_hdrc *ci, u32 bits)
> +{
> + hw_write(ci, OP_OTGSC, bits, bits);
> +}
> +
> +void ci_disable_otg_interrupt(struct ci_hdrc *ci, u32 bits)
> +{
> + hw_write(ci, OP_OTGSC, bits, 0);
> +}
These functions look like they would be better off as static inlines in
otg.h than here.
> +
> +/**
> + * ci_hdrc_otg_init - initialize otgsc bits
> + * ci: the controller
> + */
> +int ci_hdrc_otg_init(struct ci_hdrc *ci)
> +{
> + ci_enable_otg_interrupt(ci, OTGSC_IDIE);
> +
> + return 0;
> +}
> diff --git a/drivers/usb/chipidea/otg.h b/drivers/usb/chipidea/otg.h
> new file mode 100644
> index 0000000..f24ec37
> --- /dev/null
> +++ b/drivers/usb/chipidea/otg.h
> @@ -0,0 +1,19 @@
> +/*
> + * Copyright (C) 2013 Freescale Semiconductor, Inc.
> + *
> + * Author: Peter Chen
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + */
> +
> +#ifndef __DRIVERS_USB_CHIPIDEA_OTG_H
> +#define __DRIVERS_USB_CHIPIDEA_OTG_H
> +
> +int ci_hdrc_otg_init(struct ci_hdrc *ci);
> +void ci_clear_otg_interrupt(struct ci_hdrc *ci, u32 bits);
> +void ci_enable_otg_interrupt(struct ci_hdrc *ci, u32 bits);
> +void ci_disable_otg_interrupt(struct ci_hdrc *ci, u32 bits);
> +
> +#endif /* __DRIVERS_USB_CHIPIDEA_OTG_H */
> --
> 1.7.0.4
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
