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| author | Michal Simek <michal.simek@xilinx.com> | 2018-04-11 15:55:01 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2018-05-23 11:43:03 +0200 |
| commit | 060f3ebf6a9a4a92dd92149e6ebffae10679ed17 (patch) | |
| tree | 76666efc35eaf9981d6e98ab72078d397c42f1ca /drivers/gpio/gpio-pca953x.c | |
| parent | gpio: dwapb: Rework support for 1 interrupt per port A GPIO (diff) | |
| download | linux-060f3ebf6a9a4a92dd92149e6ebffae10679ed17.tar.xz linux-060f3ebf6a9a4a92dd92149e6ebffae10679ed17.zip | |
gpio: zynq: Setup chip->base based on alias ID
In past Xilinx gpio-zynq driver was setting up gpio chip->base as 0
which was chagned to autodetection when driver was upstreamed. Older
systems, which were using this old version, setup SW stack which expects
zynq gpio base as 0 and right now there is no way how to set this up.
The patch is adding an option to setup chip->base based on aliases which
is something what some other drivers are doing too.
It means when gpio0 alias is setup then chip->base is 0. When gpio alias
is not setup gpiochip_find_base() set it up properly which is current
behavior.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio/gpio-pca953x.c')
0 files changed, 0 insertions, 0 deletions