On Mon, Nov 07, 2016 at 10:56:12AM +0100, Maxime Ripard wrote: > On Mon, Nov 07, 2016 at 05:48:43PM +0800, Chen-Yu Tsai wrote: > > Hi, > > > > On Mon, Nov 7, 2016 at 4:18 PM, LABBE Corentin > > <[email protected]> wrote: > > > Hello > > > > > > With CONFIG_DEBUG_TEST_DRIVER_REMOVE=y pinctrl-sunxi fail to load on the > > > second try. > > > > > > [ 3.900061] sun8i-h3-pinctrl 1c20800.pinctrl: initialized sunXi PIO > > > driver > > > [ 3.916251] gpio gpiochip1: GPIO integer space overlap, cannot add chip > > > [ 3.923016] gpiochip_add_data: GPIOs 0..223 (1c20800.pinctrl) failed > > > to register > > > [ 3.931099] sun8i-h3-pinctrl: probe of 1c20800.pinctrl failed with > > > error -16 > > > [ 3.944709] sun8i-h3-r-pinctrl 1f02c00.pinctrl: initialized sunXi PIO > > > driver > > > [ 3.960796] gpio gpiochip2: GPIO integer space overlap, cannot add chip > > > [ 3.967594] gpiochip_add_data: GPIOs 352..383 (1f02c00.pinctrl) failed > > > to register > > > [ 3.975633] sun8i-h3-r-pinctrl: probe of 1f02c00.pinctrl failed with > > > error -16 > > > > > > Without it, all subsequent drivers fail to load. > > > Tested on Orange PI PC board. > > > > I don't think the pinctrl drivers were designed to be removed. > > And I thought the lack of a .remove callback in the driver blocks > > the core from removing the device? Maybe I remember wrong... > > Using a builtin_platform_driver should be enough to prevent it to be > removed. >
The problem is that it is already builtin_platform_driver()
