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Code Issues Releases Packages Activity
linux/include/soc/fsl/qe
History
Dmitry Torokhov 66310b5a0f
 soc: fsl: qe: request pins non-exclusively 
Commit 84582f9ed0 ("soc: fsl: qe: Avoid using gpio_to_desc()") changed
qe_pin_request() to request and hold GPIO corresponding to a given pin.
Unfortunately this does not work, as fhci-hcd requests these GPIOs
first, befor calling qe_pin_request() (see
drivers/usb/host/fhci-hcd.c::of_fhci_probe()).
To fix it change qe_pin_request() to request GPIOs non-exclusively, and
free them once the code determines GPIO controller and offset for each
GPIO/pin.

Also reaching deep into gpiolib implementation is not the best idea. We
should either export gpio_chip_hwgpio() or keep converting to the global
gpio numbers space until we fix the driver to implement proper pin
control.

Fixes: 84582f9ed0 ("soc: fsl: qe: Avoid using gpio_to_desc()")
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/Y400YXnWBdz1e/L5@google.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
History 2022-12-05 18:19:34 +01:00
..
immap_qe.h soc: fsl: Replace kernel.h with the necessary inclusions 2022-02-18 17:11:17 -06:00
qe.h soc: fsl: qe: request pins non-exclusively 2022-12-05 18:19:34 +01:00
qe_tdm.h soc: fsl: Replace kernel.h with the necessary inclusions 2022-02-18 17:11:17 -06:00
ucc.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ucc_fast.h soc: fsl: Replace kernel.h with the necessary inclusions 2022-02-18 17:11:17 -06:00
ucc_slow.h soc: fsl: Replace kernel.h with the necessary inclusions 2022-02-18 17:11:17 -06:00