Hi all,
This patch series improves the existing bias support in the Renesas Pin
Function Controller driver, and adds pull-up and pull-down support for
the R-Car M2-W and M2-N, and RZ/G1M and RZ/G1N SoCs.
The latter has been tested on the Koelsch development board by measuring
the voltages on the GP5_[0-3] pins when the software switches (SW2) are
closed:
- With internal bias disabled, the 2kΩ external pull-down resistors
pull the GPIO lines all the way to GND,
- With internal pull-up enabled, the internal pull-up resistors and the
external pull-down resistors form a voltage divider, showing the
internal pull-up resistors have a value of ca. 45kΩ.
To be queued in renesas-pinctrl-for-v5.13.
Thanks for your comments!
Geert Uytterhoeven (6):
pinctrl: renesas: Make sh_pfc_pin_to_bias_reg() static
pinctrl: renesas: Move R-Car bias helpers to sh_pfc.h
pinctrl: renesas: Factor out common R-Mobile bias handling
pinctrl: renesas: Add PORT_GP_CFG_7 macros
pinctrl: renesas: Add support for R-Car SoCs with pull-down only pins
pinctrl: renesas: r8a7791: Add bias pinconf support
drivers/pinctrl/renesas/core.c | 20 --
drivers/pinctrl/renesas/core.h | 8 -
drivers/pinctrl/renesas/pfc-r8a73a4.c | 48 +--
drivers/pinctrl/renesas/pfc-r8a7740.c | 46 +--
drivers/pinctrl/renesas/pfc-r8a7778.c | 1 -
drivers/pinctrl/renesas/pfc-r8a7791.c | 387 ++++++++++++++++++++++++-
drivers/pinctrl/renesas/pfc-r8a7792.c | 1 -
drivers/pinctrl/renesas/pfc-r8a77950.c | 1 -
drivers/pinctrl/renesas/pfc-r8a77951.c | 1 -
drivers/pinctrl/renesas/pfc-r8a7796.c | 1 -
drivers/pinctrl/renesas/pfc-r8a77965.c | 1 -
drivers/pinctrl/renesas/pfc-r8a77970.c | 1 -
drivers/pinctrl/renesas/pfc-r8a77980.c | 1 -
drivers/pinctrl/renesas/pfc-r8a77990.c | 1 -
drivers/pinctrl/renesas/pfc-r8a77995.c | 1 -
drivers/pinctrl/renesas/pfc-r8a779a0.c | 1 -
drivers/pinctrl/renesas/pfc-sh73a0.c | 46 +--
drivers/pinctrl/renesas/pinctrl.c | 109 +++++--
drivers/pinctrl/renesas/sh_pfc.h | 24 +-
19 files changed, 497 insertions(+), 202 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
