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From:   Enric Balletbo i Serra <enric.balletbo@collabora.com>
To:     linux-kernel@vger.kernel.org
Cc:     Jonathan Corbet <corbet@lwn.net>,
        Krzysztof Kozlowski <krzk@kernel.org>,
        Will Deacon <will.deacon@arm.com>,
        MyungJoo Ham <myungjoo.ham@samsung.com>,
        Chanwoo Choi <cw00.choi@samsung.com>,
        Benson Leung <bleung@chromium.org>,
        Guenter Roeck <groeck@chromium.org>,
        Jonathan Cameron <jic23@kernel.org>,
        Dmitry Torokhov <dmitry.torokhov@gmail.com>,
        Mauro Carvalho Chehab <mchehab@kernel.org>,
        Lee Jones <lee.jones@linaro.org>,
        Sebastian Reichel <sre@kernel.org>,
        Thierry Reding <thierry.reding@gmail.com>,
        Alexandre Belloni <alexandre.belloni@bootlin.com>,
        Liam Girdwood <lgirdwood@gmail.com>,
        Mark Brown <broonie@kernel.org>,
        Neil Armstrong <narmstrong@baylibre.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Collabora kernel ML <kernel@collabora.com>
Subject: [PATCH v6 00/11] Move part of cros-ec out of MFD subsystem
Date:   Fri, 23 Aug 2019 14:53:20 +0200
Message-Id: <20190823125331.5070-1-enric.balletbo@collabora.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

Hi,

Now that rc1 is released is time to send another patchset rebased on
top. This is an attempt to clean up a bit more the cros-ec driver
to have a better separation on what is part of the MFD subsystem and
what is part of platform/chrome.

The major changes introduced by this patchset are:
1. Move the core driver to platform/chrome, as is not really related
   to an MFD device driver.
2. Create a new misc chardev driver to replace the chardev bits from
   cros-ec-dev (MFD)
3. Added some convenience structs on cros-ec-dev (MFD) to easy add
   more subdrivers avoiding to add more boiler plate.

Once applied we have moved all the code to platform/chrome except
the cros-ec-dev driver, which is the one that instantiates the different
subdrivers as cells of the MFD driver.

I tested the following patches on Veyron, Kevin, Samus, Peach Pi and
Peach Pit without noticing any problem, but they would need more
tests.

Thanks,
  Enric

Changes in v6:
- Move cros_ec_chardev.h to include/linux/platform_data
- Add a break statement once the MCU type has been determined (Lee Jones)
- Improve patch description stating the reason of the change (Lee Jones)

Changes in v5:
- Prefix the versions strings with CROS_EC_DEV_VERSION (Gwendal)

Changes in v4:
- Rebase on top of for-mfd-next to avoid conflicts.

Changes in v3:
- Collect more acks an tested-by
- Fix 'linux/mfd/cros_ec.h' is not exported (reported by lkp)
- Use mfd_add_hotplug_devices helper (Gwendal)
- Add a new patch to use mfd_add_hoplug_devices to register subdevices

Changes in v2:
- Collect acks received.
- Remove '[PATCH 07/10] mfd: cros_ec: Update with SPDX Licence identifier
  and fix description' to avoid conflicts with some tree-wide patches
  that actually updates the Licence identifier.
- Add '[PATCH 10/10] arm/arm64: defconfig: Update configs to use the new
  CROS_EC options' to update the defconfigs after change some config
  symbols.
- Remove the list, and the lock, as are not needed (Greg Kroah-Hartman)
- Remove dev_info in probe, anyway we will see the chardev or not if the
  probe fails (Greg Kroah-Hartman)

Enric Balletbo i Serra (11):
  mfd / platform: cros_ec: Handle chained ECs as platform devices
  mfd / platform: cros_ec: Move cros-ec core driver out from MFD
  mfd / platform: cros_ec: Miscellaneous character device to talk with
    the EC
  mfd: cros_ec: Switch to use the new cros-ec-chardev driver
  mfd / platform: cros_ec: Rename config to a better name
  mfd / platform: cros_ec: Reorganize platform and mfd includes
  mfd: cros_ec: Use kzalloc and cros_ec_cmd_xfer_status helper
  mfd: cros_ec: Add convenience struct to define dedicated CrOS EC MCUs
  mfd: cros_ec: Add convenience struct to define autodetectable CrOS EC
    subdevices
  mfd: cros_ec: Use mfd_add_hotplug_devices() helper
  arm/arm64: defconfig: Update configs to use the new CROS_EC options

 arch/arm/configs/exynos_defconfig             |   6 +-
 arch/arm/configs/multi_v7_defconfig           |   6 +-
 arch/arm/configs/pxa_defconfig                |   4 +-
 arch/arm/configs/tegra_defconfig              |   2 +-
 arch/arm64/configs/defconfig                  |   6 +-
 drivers/extcon/Kconfig                        |   2 +-
 drivers/extcon/extcon-usbc-cros-ec.c          |   3 +-
 drivers/hid/Kconfig                           |   2 +-
 drivers/hid/hid-google-hammer.c               |   4 +-
 drivers/i2c/busses/Kconfig                    |   2 +-
 drivers/i2c/busses/i2c-cros-ec-tunnel.c       |   4 +-
 drivers/iio/accel/cros_ec_accel_legacy.c      |   3 +-
 drivers/iio/common/cros_ec_sensors/Kconfig    |   2 +-
 .../cros_ec_sensors/cros_ec_lid_angle.c       |   3 +-
 .../common/cros_ec_sensors/cros_ec_sensors.c  |   3 +-
 .../cros_ec_sensors/cros_ec_sensors_core.c    |   3 +-
 drivers/iio/light/cros_ec_light_prox.c        |   3 +-
 drivers/iio/pressure/cros_ec_baro.c           |   3 +-
 drivers/input/keyboard/Kconfig                |   2 +-
 drivers/input/keyboard/cros_ec_keyb.c         |   4 +-
 drivers/media/platform/Kconfig                |   3 +-
 .../media/platform/cros-ec-cec/cros-ec-cec.c  |   5 +-
 drivers/mfd/Kconfig                           |  26 +-
 drivers/mfd/Makefile                          |   4 +-
 drivers/mfd/cros_ec_dev.c                     | 463 ++++++------------
 drivers/platform/chrome/Kconfig               |  50 +-
 drivers/platform/chrome/Makefile              |   2 +
 drivers/{mfd => platform/chrome}/cros_ec.c    |  64 +--
 drivers/platform/chrome/cros_ec_chardev.c     | 252 ++++++++++
 drivers/platform/chrome/cros_ec_debugfs.c     |   3 +-
 drivers/platform/chrome/cros_ec_i2c.c         |  12 +-
 drivers/platform/chrome/cros_ec_ishtp.c       |   5 +-
 drivers/platform/chrome/cros_ec_lightbar.c    |   3 +-
 drivers/platform/chrome/cros_ec_lpc.c         |   7 +-
 drivers/platform/chrome/cros_ec_proto.c       |   3 +-
 drivers/platform/chrome/cros_ec_rpmsg.c       |   6 +-
 drivers/platform/chrome/cros_ec_spi.c         |  12 +-
 drivers/platform/chrome/cros_ec_sysfs.c       |   3 +-
 drivers/platform/chrome/cros_ec_trace.c       |   2 +-
 drivers/platform/chrome/cros_ec_trace.h       |   4 +-
 drivers/platform/chrome/cros_ec_vbc.c         |   3 +-
 drivers/platform/chrome/cros_usbpd_logger.c   |   5 +-
 drivers/power/supply/Kconfig                  |   2 +-
 drivers/power/supply/cros_usbpd-charger.c     |   5 +-
 drivers/pwm/Kconfig                           |   2 +-
 drivers/pwm/pwm-cros-ec.c                     |   4 +-
 drivers/rtc/Kconfig                           |   2 +-
 drivers/rtc/rtc-cros-ec.c                     |   3 +-
 include/Kbuild                                |   2 +-
 .../linux/iio/common/cros_ec_sensors_core.h   |   3 +-
 include/linux/mfd/cros_ec.h                   | 292 -----------
 .../linux/platform_data/cros_ec_chardev.h     |  12 +-
 .../{mfd => platform_data}/cros_ec_commands.h |   0
 include/linux/platform_data/cros_ec_proto.h   | 319 ++++++++++++
 sound/soc/codecs/Kconfig                      |   4 +-
 sound/soc/codecs/cros_ec_codec.c              |   4 +-
 sound/soc/qcom/Kconfig                        |   2 +-
 57 files changed, 907 insertions(+), 753 deletions(-)
 rename drivers/{mfd => platform/chrome}/cros_ec.c (84%)
 create mode 100644 drivers/platform/chrome/cros_ec_chardev.c
 rename drivers/mfd/cros_ec_dev.h => include/linux/platform_data/cros_ec_chardev.h (79%)
 rename include/linux/{mfd => platform_data}/cros_ec_commands.h (100%)
 create mode 100644 include/linux/platform_data/cros_ec_proto.h

-- 
2.20.1