linux-kernel - [PATCH v3 00/15] Add PFC support for Renesas RZ/V2H(P) SoC

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Date: Thu, 30 May 2024 18:38:42 +0100
From: Prabhakar <prabhakar.csengg@...il.com>
To: Geert Uytterhoeven <geert+renesas@...der.be>,
	Linus Walleij <linus.walleij@...aro.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Magnus Damm <magnus.damm@...il.com>
Cc: linux-renesas-soc@...r.kernel.org,
	linux-gpio@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Prabhakar <prabhakar.csengg@...il.com>,
	Biju Das <biju.das.jz@...renesas.com>,
	Claudiu Beznea <claudiu.beznea.uj@...renesas.com>,
	Fabrizio Castro <fabrizio.castro.jz@...esas.com>,
	Paul Barker <paul.barker.ct@...renesas.com>,
	Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: [PATCH v3 00/15] Add PFC support for Renesas RZ/V2H(P) SoC

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>

Hi All,

This patch series aims to add PFC (Pin Function Controller) support for
Renesas RZ/V2H(P) SoC. The PFC block on RZ/V2H(P) is almost similar to
one found on the RZ/G2L family with couple of differences. To able to
re-use the use the existing driver for RZ/V2H(P) SoC function pointers
are introduced based on the SoC changes.

v2->v3
- Dropped patch 1/13 [0] as its been already queued up.
- Updated description for renesas,output-impedance property
- Added three new patches 02/15, 04/15 and 14/15
- Updated size for cfg in struct rzg2l_variable_pin_cfg
- Included RB tags
- Introduced single function pointer to (un)lock PFC
- Now passing offset to pmc_writeb() instead of virtual address
- Renamed read_oen->oen_read
- Renamed write_oen->oen_write
- Renamed get_bias_param -> hw_to_bias_param
- Renamed get_bias_val -> bias_param_to_hw
- Dropped un-necessary block {}
- Now reading arg before calling hw_to_bias_param()
- Added gaurd for custom_conf_items in struct rzg2l_pinctrl_data
- Renamed PIN_CFG_OPEN_DRAIN->PIN_CFG_NOD
- Renamed PIN_CFG_SCHMIT_CTRL->PIN_CFG_SMT
- Introduced PWPR_REGWE_A instead of using PWPR_PFCWE
- Dropped using pwpr_lock
- Optimized rzv2h_pin_to_oen_bit()

RFC->v2
- Fixed review comments pointed by Rob
- Incorporated changes suggested by Claudiu
- Fixed build error reported for m68K
- Dropped IOLH groups as we will be passing register values
- Fixed configs for dedicated pins
- Added support for slew-rate and bias settings
- Added support for OEN

RFC: https://patchwork.kernel.org/project/linux-renesas-soc/cover/20240326222844.1422948-1-prabhakar.mahadev-lad.rj@bp.renesas.com/

[0] https://patchwork.kernel.org/project/linux-renesas-soc/patch/20240423175900.702640-2-prabhakar.mahadev-lad.rj@bp.renesas.com/

Cheers,
Prabhakar

Lad Prabhakar (15):
  dt-bindings: pinctrl: renesas: Document RZ/V2H(P) SoC
  pinctrl: renesas: pinctrl-rzg2l: Rename B0WI to BOWI
  pinctrl: renesas: pinctrl-rzg2l: Allow more bits for pin configuration
  pinctrl: renesas: pinctrl-rzg2l: Drop struct rzg2l_variable_pin_cfg
  pinctrl: renesas: pinctrl-rzg2l: Allow parsing of variable
    configuration for all architectures
  pinctrl: renesas: pinctrl-rzg2l: Validate power registers for SD and
    ETH
  pinctrl: renesas: pinctrl-rzg2l: Add function pointer for
    locking/unlocking the PFC register
  pinctrl: renesas: pinctrl-rzg2l: Add function pointer for writing to
    PMC register
  pinctrl: renesas: pinctrl-rzg2l: Add function pointers for
    reading/writing OEN register
  pinctrl: renesas: pinctrl-rzg2l: Add support to configure the
    slew-rate
  pinctrl: renesas: pinctrl-rzg2l: Add support to set pulling up/down
    the pins
  pinctrl: renesas: pinctrl-rzg2l: Pass pincontrol device pointer to
    pinconf_generic_parse_dt_config()
  pinctrl: renesas: pinctrl-rzg2l: Add support for custom parameters
  pinctrl: renesas: pinctrl-rzg2l: Acquire lock in
    rzg2l_pinctrl_pm_setup_pfc()
  pinctrl: renesas: pinctrl-rzg2l: Add support for RZ/V2H SoC

 .../pinctrl/renesas,rzg2l-pinctrl.yaml        |  23 +-
 drivers/pinctrl/renesas/pinctrl-rzg2l.c       | 773 ++++++++++++++----
 2 files changed, 619 insertions(+), 177 deletions(-)

-- 
2.34.1