diff mbox series

[3/3] usb: Add Kconfig and Makefile changes to build brcmstb-usb-pinmap

Message ID 20200812202018.49046-4-alcooperx@gmail.com (mailing list archive)
State Superseded
Headers show
Series usb: Add driver for USB signal re-mapper | expand

Commit Message

Alan Cooper Aug. 12, 2020, 8:20 p.m. UTC 
From: Al Cooper <al.cooper@broadcom.com>

Add Kconfig and Makefile changes to build brcmstb-usb-pinmap and
update MAINTAINERS for the new driver.

refs #SWLINUX-5537

Signed-off-by: Al Cooper <al.cooper@broadcom.com>
---
 MAINTAINERS               | 8 ++++++++
 drivers/usb/host/Kconfig  | 4 ++++
 drivers/usb/host/Makefile | 1 +
 3 files changed, 13 insertions(+)

Comments

kernel test robot Aug. 12, 2020, 9:59 p.m. UTC | #1 
Hi Al,

I love your patch! Perhaps something to improve:

[auto build test WARNING on usb/usb-testing]
[also build test WARNING on linux/master linus/master v5.8 next-20200812]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Al-Cooper/usb-Add-driver-for-USB-signal-re-mapper/20200813-042328
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing
config: sh-allmodconfig (attached as .config)
compiler: sh4-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=sh 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

>> drivers/usb/host/brcmstb-usb-pinmap.c:219:6: warning: no previous prototype for 'sync_all_pins' [-Wmissing-prototypes]
     219 | void sync_all_pins(struct brcmstb_usb_pinmap_data *pdata)
         |      ^~~~~~~~~~~~~

vim +/sync_all_pins +219 drivers/usb/host/brcmstb-usb-pinmap.c

06f59ffd15dd0d5 Al Cooper 2020-08-12  218  
06f59ffd15dd0d5 Al Cooper 2020-08-12 @219  void sync_all_pins(struct brcmstb_usb_pinmap_data *pdata)
06f59ffd15dd0d5 Al Cooper 2020-08-12  220  {
06f59ffd15dd0d5 Al Cooper 2020-08-12  221  	struct out_pin *pout;
06f59ffd15dd0d5 Al Cooper 2020-08-12  222  	struct in_pin *pin;
06f59ffd15dd0d5 Al Cooper 2020-08-12  223  	int val;
06f59ffd15dd0d5 Al Cooper 2020-08-12  224  	int x;
06f59ffd15dd0d5 Al Cooper 2020-08-12  225  
06f59ffd15dd0d5 Al Cooper 2020-08-12  226  	/*
06f59ffd15dd0d5 Al Cooper 2020-08-12  227  	 * Enable the override, clear any changed condition and
06f59ffd15dd0d5 Al Cooper 2020-08-12  228  	 * propagate the state to the GPIO for all out pins.
06f59ffd15dd0d5 Al Cooper 2020-08-12  229  	 */
06f59ffd15dd0d5 Al Cooper 2020-08-12  230  	pout = pdata->out_pins;
06f59ffd15dd0d5 Al Cooper 2020-08-12  231  	for (x = 0; x < pdata->out_count; x++) {
06f59ffd15dd0d5 Al Cooper 2020-08-12  232  		pinmap_set(pdata->regs, pout->enable_mask);
06f59ffd15dd0d5 Al Cooper 2020-08-12  233  		pinmap_set(pdata->regs, pout->clr_changed_mask);
06f59ffd15dd0d5 Al Cooper 2020-08-12  234  		pinmap_unset(pdata->regs, pout->clr_changed_mask);
06f59ffd15dd0d5 Al Cooper 2020-08-12  235  		val = readl(pdata->regs) & pout->value_mask;
06f59ffd15dd0d5 Al Cooper 2020-08-12  236  		gpiod_set_value(pout->gpiod, val ? 1 : 0);
06f59ffd15dd0d5 Al Cooper 2020-08-12  237  		pout++;
06f59ffd15dd0d5 Al Cooper 2020-08-12  238  	}
06f59ffd15dd0d5 Al Cooper 2020-08-12  239  
06f59ffd15dd0d5 Al Cooper 2020-08-12  240  	/* sync and enable all in pins. */
06f59ffd15dd0d5 Al Cooper 2020-08-12  241  	pin = pdata->in_pins;
06f59ffd15dd0d5 Al Cooper 2020-08-12  242  	for (x = 0; x < pdata->in_count; x++) {
06f59ffd15dd0d5 Al Cooper 2020-08-12  243  		sync_in_pin(pin);
06f59ffd15dd0d5 Al Cooper 2020-08-12  244  		pinmap_set(pdata->regs, pin->enable_mask);
06f59ffd15dd0d5 Al Cooper 2020-08-12  245  		pin++;
06f59ffd15dd0d5 Al Cooper 2020-08-12  246  	}
06f59ffd15dd0d5 Al Cooper 2020-08-12  247  }
06f59ffd15dd0d5 Al Cooper 2020-08-12  248  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
Greg Kroah-Hartman Aug. 13, 2020, 5:40 a.m. UTC | #2 
On Wed, Aug 12, 2020 at 04:20:18PM -0400, Al Cooper wrote:
> From: Al Cooper <al.cooper@broadcom.com>
> 
> Add Kconfig and Makefile changes to build brcmstb-usb-pinmap and
> update MAINTAINERS for the new driver.

This can be part of the previous patch, or at least the Kconfig and
Makefile changes should be there so that we build the code when we add
it.

> refs #SWLINUX-5537

What is this?

> 
> Signed-off-by: Al Cooper <al.cooper@broadcom.com>
> ---
>  MAINTAINERS               | 8 ++++++++
>  drivers/usb/host/Kconfig  | 4 ++++
>  drivers/usb/host/Makefile | 1 +
>  3 files changed, 13 insertions(+)
> 
> diff --git a/MAINTAINERS b/MAINTAINERS
> index f0569cf304ca..3a44ac61899b 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -3527,6 +3527,14 @@ S:	Maintained
>  F:	Documentation/devicetree/bindings/usb/brcm,bcm7445-ehci.yaml
>  F:	drivers/usb/host/ehci-brcm.*
>  
> +BROADCOM BRCMSTB USB PIN MAP DRIVER
> +M:	Al Cooper <alcooperx@gmail.com>
> +L:	linux-usb@vger.kernel.org
> +L:	bcm-kernel-feedback-list@broadcom.com
> +S:	Maintained
> +F:	Documentation/devicetree/bindings/usb/brcm,usb-pinmap.yaml
> +F:	drivers/usb/host/brcmstb-usb-pinmap.c
> +
>  BROADCOM BRCMSTB USB2 and USB3 PHY DRIVER
>  M:	Al Cooper <alcooperx@gmail.com>
>  L:	linux-kernel@vger.kernel.org
> diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
> index 1cb3004ea7b2..9c285053bb0c 100644
> --- a/drivers/usb/host/Kconfig
> +++ b/drivers/usb/host/Kconfig
> @@ -109,12 +109,16 @@ endif # USB_XHCI_HCD
>  config USB_EHCI_BRCMSTB
>         tristate
>  
> +config BRCM_USB_PINMAP
> +       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
> +	select BRCM_USB_PINMAP
>  	help
>  	  Enables support for XHCI, EHCI and OHCI host controllers
>  	  found in Broadcom STB SoC's.
> diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
> index bc731332fed9..0e63ef94790d 100644
> --- a/drivers/usb/host/Makefile
> +++ b/drivers/usb/host/Makefile
> @@ -90,3 +90,4 @@ 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
> +obj-$(CONFIG_BRCM_USB_PINMAP)	+= brcmstb-usb-pinmap.o

Shouldn't this driver be in usb/misc/ with other drivers like this?  Why
host?

Wait, why is this a separate driver at all?  Why not just build it into
the USB_BRCMSTB driver?

thanks,

greg k-h
Alan Cooper Aug. 13, 2020, 3:01 p.m. UTC | #3 
On Thu, Aug 13, 2020 at 1:40 AM Greg Kroah-Hartman
<gregkh@linuxfoundation.org> wrote:
>
> On Wed, Aug 12, 2020 at 04:20:18PM -0400, Al Cooper wrote:
> > From: Al Cooper <al.cooper@broadcom.com>
> >
> > Add Kconfig and Makefile changes to build brcmstb-usb-pinmap and
> > update MAINTAINERS for the new driver.
>
> This can be part of the previous patch, or at least the Kconfig and
> Makefile changes should be there so that we build the code when we add
> it.

I'll combine the 2 patches.

>
> > refs #SWLINUX-5537
>
> What is this?

This will be removed.

>
> >
> > Signed-off-by: Al Cooper <al.cooper@broadcom.com>
> > ---
> >  MAINTAINERS               | 8 ++++++++
> >  drivers/usb/host/Kconfig  | 4 ++++
> >  drivers/usb/host/Makefile | 1 +
> >  3 files changed, 13 insertions(+)
> >
> > diff --git a/MAINTAINERS b/MAINTAINERS
> > index f0569cf304ca..3a44ac61899b 100644
> > --- a/MAINTAINERS
> > +++ b/MAINTAINERS
> > @@ -3527,6 +3527,14 @@ S:     Maintained
> >  F:   Documentation/devicetree/bindings/usb/brcm,bcm7445-ehci.yaml
> >  F:   drivers/usb/host/ehci-brcm.*
> >
> > +BROADCOM BRCMSTB USB PIN MAP DRIVER
> > +M:   Al Cooper <alcooperx@gmail.com>
> > +L:   linux-usb@vger.kernel.org
> > +L:   bcm-kernel-feedback-list@broadcom.com
> > +S:   Maintained
> > +F:   Documentation/devicetree/bindings/usb/brcm,usb-pinmap.yaml
> > +F:   drivers/usb/host/brcmstb-usb-pinmap.c
> > +
> >  BROADCOM BRCMSTB USB2 and USB3 PHY DRIVER
> >  M:   Al Cooper <alcooperx@gmail.com>
> >  L:   linux-kernel@vger.kernel.org
> > diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
> > index 1cb3004ea7b2..9c285053bb0c 100644
> > --- a/drivers/usb/host/Kconfig
> > +++ b/drivers/usb/host/Kconfig
> > @@ -109,12 +109,16 @@ endif # USB_XHCI_HCD
> >  config USB_EHCI_BRCMSTB
> >         tristate
> >
> > +config BRCM_USB_PINMAP
> > +       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
> > +     select BRCM_USB_PINMAP
> >       help
> >         Enables support for XHCI, EHCI and OHCI host controllers
> >         found in Broadcom STB SoC's.
> > diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
> > index bc731332fed9..0e63ef94790d 100644
> > --- a/drivers/usb/host/Makefile
> > +++ b/drivers/usb/host/Makefile
> > @@ -90,3 +90,4 @@ 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
> > +obj-$(CONFIG_BRCM_USB_PINMAP)        += brcmstb-usb-pinmap.o
>
> Shouldn't this driver be in usb/misc/ with other drivers like this?  Why
> host?

That does seem like a better choice, I'll move it.

>
> Wait, why is this a separate driver at all?  Why not just build it into
> the USB_BRCMSTB driver?

Of the 20 or so chips supported by the BRCMSTB USB drivers, only one
currently has this functionality so it seems better to have this code
in it's own driver so it can be enabled in device-tree for just this
chip. I also wanted to leave this in it's own driver because in the
future the same hardware functionality may be added for some eMMC
signals.

Thanks
Al

>
> thanks,
>
> greg k-h
kernel test robot Aug. 24, 2020, 3:48 p.m. UTC | #4 
Hi Al,

I love your patch! Perhaps something to improve:

[auto build test WARNING on usb/usb-testing]
[also build test WARNING on linux/master linus/master v5.9-rc2 next-20200824]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Al-Cooper/usb-Add-driver-for-USB-signal-re-mapper/20200813-042328
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing
config: i386-randconfig-s002-20200824 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.2-191-g10164920-dirty
        # save the attached .config to linux build tree
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=i386 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>


sparse warnings: (new ones prefixed by >>)

>> drivers/usb/host/brcmstb-usb-pinmap.c:219:6: sparse: sparse: symbol 'sync_all_pins' was not declared. Should it be static?

Please review and possibly fold the followup patch.

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
diff mbox series

Patch

diff --git a/MAINTAINERS b/MAINTAINERS
index f0569cf304ca..3a44ac61899b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3527,6 +3527,14 @@  S:	Maintained
 F:	Documentation/devicetree/bindings/usb/brcm,bcm7445-ehci.yaml
 F:	drivers/usb/host/ehci-brcm.*
 
+BROADCOM BRCMSTB USB PIN MAP DRIVER
+M:	Al Cooper <alcooperx@gmail.com>
+L:	linux-usb@vger.kernel.org
+L:	bcm-kernel-feedback-list@broadcom.com
+S:	Maintained
+F:	Documentation/devicetree/bindings/usb/brcm,usb-pinmap.yaml
+F:	drivers/usb/host/brcmstb-usb-pinmap.c
+
 BROADCOM BRCMSTB USB2 and USB3 PHY DRIVER
 M:	Al Cooper <alcooperx@gmail.com>
 L:	linux-kernel@vger.kernel.org
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 1cb3004ea7b2..9c285053bb0c 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -109,12 +109,16 @@  endif # USB_XHCI_HCD
 config USB_EHCI_BRCMSTB
        tristate
 
+config BRCM_USB_PINMAP
+       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
+	select BRCM_USB_PINMAP
 	help
 	  Enables support for XHCI, EHCI and OHCI host controllers
 	  found in Broadcom STB SoC's.
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index bc731332fed9..0e63ef94790d 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -90,3 +90,4 @@  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
+obj-$(CONFIG_BRCM_USB_PINMAP)	+= brcmstb-usb-pinmap.o