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From:   Kumaravel Thiagarajan <kumaravel.thiagarajan@microchip.com>
To:     <linux-kernel@vger.kernel.org>, <kbuild-all@lists.01.org>,
        <lkp@intel.com>, <gregkh@linuxfoundation.org>,
        <kumaravel.thiagarajan@microchip.com>
Subject: [PATCH v2 char-misc-next] misc: microchip: pci1xxxx: fix dependency issues in building the pci1xxxx's aux bus driver.
Date:   Tue, 6 Sep 2022 16:06:58 +0530
Message-ID: <20220906103658.681751-1-kumaravel.thiagarajan@microchip.com>
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build errors and warnings listed below and reported by kernel
test robot <lkp@intel.com> on the char-misc-next branch are
fixed in this add-on patch.

errors:
ERROR: modpost: "auxiliary_device_init"
 [drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_gp.ko] undefined!
ERROR: modpost: "__auxiliary_device_add"
 [drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_gp.ko] undefined!
ERROR: modpost: "auxiliary_driver_unregister"
 [drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_gpio.ko] undefined!
ERROR: modpost: "__auxiliary_driver_register"
 [drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_gpio.ko] undefined!
ia64-linux-ld: drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_gp.o:
 in function `gp_aux_bus_probe.part.0':
mchp_pci1xxxx_gp.c:(.text+0x342): undefined reference to
 `auxiliary_device_init'
ia64-linux-ld: mchp_pci1xxxx_gp.c:(.text+0x392):
 undefined reference to `__auxiliary_device_add'
ia64-linux-ld: mchp_pci1xxxx_gp.c:(.text+0x5c2):
 undefined reference to `auxiliary_device_init'
ia64-linux-ld: mchp_pci1xxxx_gp.c:(.text+0x612):
 undefined reference to `__auxiliary_device_add'
ia64-linux-ld: drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_gpio.o:
 in function `pci1xxxx_gpio_driver_init':
 mchp_pci1xxxx_gpio.c:(.init.text+0x42): undefined reference to
 `__auxiliary_driver_register'

warnings:
unmet direct dependencies detected for GPIOLIB_IRQCHIP when selected by
 GP_PCI1XXXX

Fixes: 393fc2f5948f ("misc: microchip: pci1xxxx: load auxiliary bus driver
 for the PIO function in the multi-function endpoint of pci1xxxx device.")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Kumaravel Thiagarajan <kumaravel.thiagarajan@microchip.com>
---
 drivers/misc/mchp_pci1xxxx/Kconfig | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/misc/mchp_pci1xxxx/Kconfig b/drivers/misc/mchp_pci1xxxx/Kconfig
index f6a6970d2a59..4abb47de7219 100644
--- a/drivers/misc/mchp_pci1xxxx/Kconfig
+++ b/drivers/misc/mchp_pci1xxxx/Kconfig
@@ -1,7 +1,9 @@
 config GP_PCI1XXXX
        tristate "Microchip PCI1XXXX PCIe to GPIO Expander + OTP/EEPROM manager"
-       depends on PCI	
+       depends on PCI
+       depends on GPIOLIB
        select GPIOLIB_IRQCHIP
+       select AUXILIARY_BUS
        help
          PCI1XXXX is a PCIe GEN 3 switch with one of the endpoints having
          multiple functions and one of the functions is a GPIO controller
-- 
2.25.1