| Message ID | 20210503124408.v9.4.I7a3a7d9d2126c34079b1cab87aa0b2ec3030f9b7@changeid |
|---|---|
| State | Superseded |
| Headers | show |
| Series | USB: misc: Add onboard_usb_hub driver | expand |
Hi Matthias,
I love your patch! Yet something to improve:
[auto build test ERROR on driver-core/driver-core-testing]
[also build test ERROR on linus/master v5.12 next-20210506]
[cannot apply to usb/usb-testing robh/for-next char-misc/char-misc-testing]
[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/Matthias-Kaehlcke/USB-misc-Add-onboard_usb_hub-driver/20210504-034618
base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git 9ccce092fc64d19504fa54de4fd659e279cc92e7
config: parisc-randconfig-c024-20210505 (attached as .config)
compiler: hppa-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
# https://github.com/0day-ci/linux/commit/ce77fd553380117a63f633ab2cd2652c22a3ff98
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Matthias-Kaehlcke/USB-misc-Add-onboard_usb_hub-driver/20210504-034618
git checkout ce77fd553380117a63f633ab2cd2652c22a3ff98
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 ARCH=parisc
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
hppa-linux-ld: drivers/usb/host/xhci-plat.o: in function `xhci_plat_probe':
>> (.text+0x70c): undefined reference to `of_is_onboard_usb_hub'
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
On Thu, May 06, 2021 at 02:24:53PM +0800, kernel test robot wrote: > Hi Matthias, > > I love your patch! Yet something to improve: > > [auto build test ERROR on driver-core/driver-core-testing] > [also build test ERROR on linus/master v5.12 next-20210506] > [cannot apply to usb/usb-testing robh/for-next char-misc/char-misc-testing] > [If your patch is applied to the wrong git tree, kindly drop us a note. > And when submitting patch, we suggest to use '--base' as documented in > https://git-scm.com/docs/git-format-patch] > > url: https://github.com/0day-ci/linux/commits/Matthias-Kaehlcke/USB-misc-Add-onboard_usb_hub-driver/20210504-034618 > base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git 9ccce092fc64d19504fa54de4fd659e279cc92e7 > config: parisc-randconfig-c024-20210505 (attached as .config) > compiler: hppa-linux-gcc (GCC) 9.3.0 > reproduce (this is a W=1 build): > wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross > chmod +x ~/bin/make.cross > # https://github.com/0day-ci/linux/commit/ce77fd553380117a63f633ab2cd2652c22a3ff98 > git remote add linux-review https://github.com/0day-ci/linux > git fetch --no-tags linux-review Matthias-Kaehlcke/USB-misc-Add-onboard_usb_hub-driver/20210504-034618 > git checkout ce77fd553380117a63f633ab2cd2652c22a3ff98 > # save the attached .config to linux build tree > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 ARCH=parisc > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <lkp@intel.com> > > All errors (new ones prefixed by >>): > > hppa-linux-ld: drivers/usb/host/xhci-plat.o: in function `xhci_plat_probe': > >> (.text+0x70c): undefined reference to `of_is_onboard_usb_hub' The relevant config options are: CONFIG_COMPILE_TEST=y CONFIG_USB_XHCI_PLATFORM=y # CONFIG_USB_ONBOARD_HUB is not set and include/linux/usb/onboard_hub.h has: #if defined(CONFIG_USB_ONBOARD_HUB) || defined(CONFIG_COMPILE_TEST) bool of_is_onboard_usb_hub(const struct device_node *np); #else static inline bool of_is_onboard_usb_hub(const struct device_node *np) { return false; } #endif So it looks like '|| defined(CONFIG_COMPILE_TEST)' should be removed to use the stub for CONFIG_COMPILE_TEST (or the actual function if CONFIG_USB_ONBOARD_HUB is also enabled).
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index b94f2a070c05..da50496787fe 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -54,6 +54,7 @@ config USB_XHCI_PCI_RENESAS config USB_XHCI_PLATFORM tristate "Generic xHCI driver for a platform device" select USB_XHCI_RCAR if ARCH_RENESAS + depends on USB_ONBOARD_HUB || !USB_ONBOARD_HUB help Adds an xHCI host driver for a generic platform device, which provides a memory space and an irq. diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index c1edcc9b13ce..9c0fb7e8df1f 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -15,6 +15,7 @@ #include <linux/of.h> #include <linux/of_device.h> #include <linux/platform_device.h> +#include <linux/usb/onboard_hub.h> #include <linux/usb/phy.h> #include <linux/slab.h> #include <linux/acpi.h> @@ -195,6 +196,7 @@ static int xhci_plat_probe(struct platform_device *pdev) int ret; int irq; struct xhci_plat_priv *priv = NULL; + struct device_node *np; if (usb_disabled()) @@ -374,6 +376,17 @@ static int xhci_plat_probe(struct platform_device *pdev) */ pm_runtime_forbid(&pdev->dev); + np = usb_of_get_device_node(hcd->self.root_hub, hcd->self.busnum); + if (np && of_is_onboard_usb_hub(np)) { + struct platform_device *pdev; + + pdev = of_platform_device_create(np, NULL, NULL); + if (pdev) + hcd->onboard_hub_dev = &pdev->dev; + else + xhci_warn(xhci, "failed to create onboard hub platform device\n"); + } + return 0; @@ -420,6 +433,9 @@ static int xhci_plat_remove(struct platform_device *dev) usb_remove_hcd(hcd); usb_put_hcd(shared_hcd); + if (hcd->onboard_hub_dev) + of_platform_device_destroy(hcd->onboard_hub_dev, NULL); + clk_disable_unprepare(clk); clk_disable_unprepare(reg_clk); usb_put_hcd(hcd); diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h index 96281cd50ff6..d02a508e19b0 100644 --- a/include/linux/usb/hcd.h +++ b/include/linux/usb/hcd.h @@ -225,6 +225,8 @@ struct usb_hcd { * (ohci 32, uhci 1024, ehci 256/512/1024). */ + struct device *onboard_hub_dev; + /* The HC driver's private data is stored at the end of * this structure. */
Check during probe() if a hub supported by the onboard_usb_hub driver is connected to the controller. If such a hub is found create the corresponding platform device. This requires the device tree to have a node for the hub with its vendor and product id (which is not common for USB devices). Further the platform device is only created when CONFIG_USB_ONBOARD_HUB=y/m. Signed-off-by: Matthias Kaehlcke <mka@chromium.org> --- Changes in v9: - added dependency on USB_ONBOARD_HUB (or !!USB_ONBOARD_HUB) to USB_XHCI_PLATFORM Changes in v8: - none Changes in v7: - none Changes in v6: - none Changes in v5: - patch added to the series drivers/usb/host/Kconfig | 1 + drivers/usb/host/xhci-plat.c | 16 ++++++++++++++++ include/linux/usb/hcd.h | 2 ++ 3 files changed, 19 insertions(+)