linux-kernel - [PATCH v5 0/2] pwm: visconti: Add Toshiba Visconti SoC PWM support

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Date:   Sun, 18 Apr 2021 20:09:02 +0900
From:   Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@...hiba.co.jp>
To:     Rob Herring <robh+dt@...nel.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>, Lee Jones <lee.jones@...aro.org>
Cc:     devicetree@...r.kernel.org, linux-pwm@...r.kernel.org,
        punit1.agrawal@...hiba.co.jp, yuji2.ishikawa@...hiba.co.jp,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@...hiba.co.jp>
Subject: [PATCH v5 0/2] pwm: visconti: Add Toshiba Visconti SoC PWM support

Hi,

This series is the PWM driver for Toshiba's ARM SoC, Visconti[0].
This provides DT binding documentation and device driver.

[0]: https://toshiba.semicon-storage.com/ap-en/semiconductor/product/image-recognition-processors-visconti.html

Updates:

  dt-bindings: pwm: Add bindings for Toshiba Visconti PWM Controller
    v4 -> v5:
      - No update.
    v3 -> v4:
      - No update.
    v2 -> v3:
      - Change compatible to toshiba,visconti-pwm
      - Change filename to toshiba,visconti-pwm.yaml.
      - Add Reviewed-by tag from Rob.
    v1 -> v2:
      - Change SPDX-License-Identifier to GPL-2.0-only OR BSD-2-Clause.
      - Set compatible toshiba,pwm-visconti only.
      - Drop unnecessary comments.

  pwm: visconti: Add Toshiba Visconti SoC PWM support
    v4 -> v5:
      - Droped checking PIPGM_PCSR from visconti_pwm_get_state.
      - Changed from to_visconti_chip to visconti_pwm_from_chip.
      - Removed pwmchip_remove return value management.
      - Add limitations of this device.
      - Add 'state->enabled = true' to visconti_pwm_get_state().
    v3 -> v4:
      - Sorted alphabetically include files.
      - Changed container_of to using static inline functions.
      - Dropped unnecessary dev_dbg().
      - Drop Initialization of chip.base.
      - Drop commnet "period too small".
      - Rebased for-next. 
    v2 -> v3:
      - Change compatible to toshiba,visconti-pwm.
      - Fix MODULE_ALIAS to platform:pwm-visconti, again.
      - Align continuation line to the opening parenthesis.
      - Rewrite the contents of visconti_pwm_apply() based on the contents suggested by Uwe.
    v1 -> v2:
      - Change SPDX-License-Identifier to GPL-2.0-only.
      - Add prefix for the register defines.
      - Drop struct device from struct visconti_pwm_chip.
      - Use '>>' instead of '/'.
      - Drop error message by devm_platform_ioremap_resource().
      - Use dev_err_probe instead of dev_err.
      - Change dev_info to dev_dbg.
      - Remove some empty lines.
      - Fix MODULE_ALIAS to platform:pwm-visconti.
      - Add .get_state() function.
      - Use the author name and email address to MODULE_AUTHOR.
      - Add more comment to function of the hardware.
      - Support .get_status() function.
      - Use NSEC_PER_USEC instead of 1000.
      - Alphabetically sorted for Makefile and Kconfig.
      - Added check for set value in visconti_pwm_apply().

Nobuhiro Iwamatsu (2):
  dt-bindings: pwm: Add bindings for Toshiba Visconti PWM Controller
  pwm: visconti: Add Toshiba Visconti SoC PWM support

 .../bindings/pwm/toshiba,pwm-visconti.yaml    |  43 ++++
 drivers/pwm/Kconfig                           |   9 +
 drivers/pwm/Makefile                          |   1 +
 drivers/pwm/pwm-visconti.c                    | 188 ++++++++++++++++++
 4 files changed, 241 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/pwm/toshiba,pwm-visconti.yaml
 create mode 100644 drivers/pwm/pwm-visconti.c

-- 
2.30.0.rc2