Hi all,
This RFC patch series adds support for the GPIO blocks on the R-Car V3U
(r8a77990) SoC. As this is an RFC, I didn't include patches from v1[1]
that have not changed. This series depends on [2].
Compared to v1 and the BSP, v2 takes a different approach to handle the
new General Input Register (INDT): instead of programming this register
during GPIO line configuration and depending on GPIO line direction, v2
enables input unconditionally in probe and resume, so the driver can
read pin state at all times.
Due to lack of hardware, the second patch is compile-tested only.
Thanks for your comments!
[1] "[PATCH/RFC 0/6] R-Car V3U GPIO support"
https://lore.kernel.org/linux-renesas-soc/20201019120614.22149-1-geert+renesas@xxxxxxxxx/
[2] "[PATCH 0/4] gpio: rcar: Cleanups and improvements"
https://lore.kernel.org/linux-renesas-soc/20201028141504.1729093-1-geert+renesas@xxxxxxxxx/
Geert Uytterhoeven (2):
gpio: rcar: Optimize GPIO pin state read on R-Car Gen3
gpio: rcar: Add R-Car V3U (R8A7799A) support
drivers/gpio/gpio-rcar.c | 64 ++++++++++++++++++++++++++++++++++------
1 file changed, 55 insertions(+), 9 deletions(-)
--
2.25.1
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
