| Message ID | 20241016-gpio-ngpios-v1-2-f16cf154f715@linaro.org |
|---|---|
| State | New |
| Headers | show |
| Series | gpio: mmio: Support ngpios property | expand |
Hi Linus, kernel test robot noticed the following build errors: [auto build test ERROR on 9852d85ec9d492ebef56dc5f229416c925758edc] url: https://github.com/intel-lab-lkp/linux/commits/Linus-Walleij/dt-bindings-gpio-mmio-Add-ngpios-property/20241016-152354 base: 9852d85ec9d492ebef56dc5f229416c925758edc patch link: https://lore.kernel.org/r/20241016-gpio-ngpios-v1-2-f16cf154f715%40linaro.org patch subject: [PATCH 2/2] gpio: mmio: Parse ngpios property config: i386-buildonly-randconfig-003-20241017 (https://download.01.org/0day-ci/archive/20241017/202410170940.KyJaAkpF-lkp@intel.com/config) compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241017/202410170940.KyJaAkpF-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202410170940.KyJaAkpF-lkp@intel.com/ All errors (new ones prefixed by >>): >> drivers/gpio/gpio-mmio.c:709:10: error: no member named 'ngpios' in 'struct bgpio_pdata'; did you mean 'ngpio'? 709 | pdata->ngpios = ngpios; | ^~~~~~ | ngpio include/linux/gpio/driver.h:688:6: note: 'ngpio' declared here 688 | int ngpio; | ^ 1 error generated. vim +709 drivers/gpio/gpio-mmio.c 693 694 static struct bgpio_pdata *bgpio_parse_fw(struct device *dev, unsigned long *flags) 695 { 696 struct bgpio_pdata *pdata; 697 u32 ngpios; 698 699 if (!dev_fwnode(dev)) 700 return NULL; 701 702 pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); 703 if (!pdata) 704 return ERR_PTR(-ENOMEM); 705 706 pdata->base = -1; 707 708 if (!device_property_read_u32(dev, "ngpios", &ngpios)) > 709 pdata->ngpios = ngpios; 710 711 if (device_is_big_endian(dev)) 712 *flags |= BGPIOF_BIG_ENDIAN_BYTE_ORDER; 713 714 if (device_property_read_bool(dev, "no-output")) 715 *flags |= BGPIOF_NO_OUTPUT; 716 717 return pdata; 718 } 719
diff --git a/drivers/gpio/gpio-mmio.c b/drivers/gpio/gpio-mmio.c index d89e78f0ead3..9e944c191551 100644 --- a/drivers/gpio/gpio-mmio.c +++ b/drivers/gpio/gpio-mmio.c @@ -694,6 +694,7 @@ MODULE_DEVICE_TABLE(of, bgpio_of_match); static struct bgpio_pdata *bgpio_parse_fw(struct device *dev, unsigned long *flags) { struct bgpio_pdata *pdata; + u32 ngpios; if (!dev_fwnode(dev)) return NULL; @@ -704,6 +705,9 @@ static struct bgpio_pdata *bgpio_parse_fw(struct device *dev, unsigned long *fla pdata->base = -1; + if (!device_property_read_u32(dev, "ngpios", &ngpios)) + pdata->ngpios = ngpios; + if (device_is_big_endian(dev)) *flags |= BGPIOF_BIG_ENDIAN_BYTE_ORDER;
This makes the MMIO GPIO driver parse the ngpios property from devices instatiated directly from the device tree so we can further restrict the number of GPIOs down from the number of bits on the target register. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> --- drivers/gpio/gpio-mmio.c | 4 ++++ 1 file changed, 4 insertions(+)