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SubjectRe: [PATCH] HID: mcp2221: add gpiolib dependency
On Tue, Apr 28, 2020 at 11:30 PM Arnd Bergmann <arnd@arndb.de> wrote:

> Without gpiolib, this driver fails to link:
>
> arm-linux-gnueabi-ld: drivers/hid/hid-mcp2221.o: in function `mcp2221_probe':
> hid-mcp2221.c:(.text+0x1b0): undefined reference to `devm_gpiochip_add_data'
> arm-linux-gnueabi-ld: drivers/hid/hid-mcp2221.o: in function `mcp_gpio_get':
> hid-mcp2221.c:(.text+0x30c): undefined reference to `gpiochip_get_data'
>
> Fixes: 328de1c519c5 ("HID: mcp2221: add GPIO functionality support")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>

> config HID_MCP2221
> tristate "Microchip MCP2221 HID USB-to-I2C/SMbus host support"
> depends on USB_HID && I2C
> + depends on GPIOLIB

These days we can even do select GPIOLIB, but I suppose
that would make the driver selectable on platforms with no
native GPIO support at all (like UM) so I suppose this
is better.

Yours,
Linus Walleij

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