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[0/6] pinctrl: renesas: Bias improvements and r8a7791 support

Message ID 20210303132619.3938128-1-geert+renesas@glider.be (mailing list archive)
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Series pinctrl: renesas: Bias improvements and r8a7791 support | expand

Message

Geert Uytterhoeven March 3, 2021, 1:26 p.m. UTC
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(-)