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Message-ID: <20200108173444.GZ32742@smile.fi.intel.com>
Date: Wed, 8 Jan 2020 19:34:44 +0200
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Mika Westerberg <mika.westerberg@...ux.intel.com>
Cc: Darren Hart <dvhart@...radead.org>,
Lee Jones <lee.jones@...aro.org>,
Thomas Gleixner <tglx@...utronix.de>,
Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
"H . Peter Anvin" <hpa@...or.com>, x86@...nel.org,
Zha Qipeng <qipeng.zha@...el.com>,
Rajneesh Bhardwaj <rajneesh.bhardwaj@...ux.intel.com>,
"David E . Box" <david.e.box@...ux.intel.com>,
Guenter Roeck <linux@...ck-us.net>,
Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Wim Van Sebroeck <wim@...ux-watchdog.org>,
platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 00/36] platform/x86: Rework intel_scu_ipc and
intel_pmc_ipc drivers
On Wed, Jan 08, 2020 at 02:41:25PM +0300, Mika Westerberg wrote:
> Hi,
>
> Currently both intel_scu_ipc.c and intel_pmc_ipc.c implement the same SCU
> IPC communications with minor differences. This duplication does not make
> much sense so this series reworks the two drivers so that there is only a
> single implementation of the SCU IPC. In addition to that the API will be
> updated to take SCU instance pointer as an argument, and most of the
> callers will be converted to this new API. The old API is left there but
> the plan is to get rid the callers and then the old API as well (this is
> something we are working with Andy Shevchenko).
>
> The intel_pmc_ipc.c is then moved under MFD which suits better for this
> kind of a driver that pretty much sets up the SCU IPC and then creates a
> bunch of platform devices for the things sitting behind the PMC. The driver
> is renamed to intel_pmc_bxt.c which should follow the existing conventions
> under drivers/mfd (and it is only meant for Intel Broxton derivatives).
>
> Previous version of the series:
>
> https://www.spinics.net/lists/platform-driver-x86/msg20359.html
>
> Changes from the previous version:
>
> * Update changelog of patch 16 according to what the patch actually does.
> * Add kernel-doc for struct intel_soc_pmic.
> * Move octal permission patch to be before MFD conversion.
> * Convert the intel_pmc_bxt.c to MFD APIs whilst it is being moved under
> drivers/mfd.
Hmm... I didn't see you appended Lee's ACKs.
>
> I'm including all x86 maintainers just to be sure they are aware of this as
> I'm not sure if x86@...nel.org reaches them all. Let me know if you have
> issues with this series.
>
> I would prefer this to be merged through platform/x86 or MFD trees assuming
> there are no objections.
I'm almost reviewed it (few patches left which I plan to do soon), I'm fine if
it goes via other tree.
>
> I have tested this on Intel Edison (Merrifield) and Joule (Broxton-M).
>
> Mika Westerberg (36):
> platform/x86: intel_mid_powerbtn: Take a copy of ddata
> platform/x86: intel_scu_ipcutil: Remove default y from Kconfig
> platform/x86: intel_scu_ipc: Add constants for register offsets
> platform/x86: intel_scu_ipc: Remove Lincroft support
> platform/x86: intel_scu_ipc: Drop intel_scu_ipc_i2c_cntrl()
> platform/x86: intel_scu_ipc: Fix interrupt support
> platform/x86: intel_scu_ipc: Sleeping is fine when polling
> platform/x86: intel_scu_ipc: Drop unused prototype intel_scu_ipc_fw_update()
> platform/x86: intel_scu_ipc: Drop unused macros
> platform/x86: intel_scu_ipc: Drop intel_scu_ipc_io[read|write][8|16]()
> platform/x86: intel_scu_ipc: Drop intel_scu_ipc_raw_command()
> platform/x86: intel_scu_ipc: Split out SCU IPC functionality from the SCU driver
> platform/x86: intel_scu_ipc: Reformat kernel-doc comments of exported functions
> platform/x86: intel_scu_ipc: Introduce new SCU IPC API
> platform/x86: intel_mid_powerbtn: Convert to use new SCU IPC API
> watchdog: intel-mid_wdt: Convert to use new SCU IPC API
> platform/x86: intel_scu_ipcutil: Convert to use new SCU IPC API
> platform/x86: intel_pmc_ipc: Make intel_pmc_gcr_update() static
> platform/x86: intel_pmc_ipc: Make intel_pmc_ipc_simple_command() static
> platform/x86: intel_pmc_ipc: Make intel_pmc_ipc_raw_cmd() static
> platform/x86: intel_pmc_ipc: Drop intel_pmc_gcr_read() and intel_pmc_gcr_write()
> platform/x86: intel_pmc_ipc: Drop ipc_data_readb()
> platform/x86: intel_pmc_ipc: Get rid of unnecessary includes
> platform/x86: intel_scu_ipc: Add function to remove SCU IPC
> platform/x86: intel_pmc_ipc: Start using SCU IPC
> mfd: intel_soc_pmic: Add SCU IPC member to struct intel_soc_pmic
> mfd: intel_soc_pmic_bxtwc: Convert to use new SCU IPC API
> mfd: intel_soc_pmic_mrfld: Convert to use new SCU IPC API
> platform/x86: intel_telemetry: Convert to use new SCU IPC API
> platform/x86: intel_pmc_ipc: Drop intel_pmc_ipc_command()
> x86/platform/intel-mid: Add empty stubs for intel_scu_devices_[create|destroy]()
> platform/x86: intel_pmc_ipc: Move PCI IDs to intel_scu_pcidrv.c
> platform/x86: intel_pmc_ipc: Use octal permissions in sysfs attributes
> platform/x86: intel_pmc_ipc: Convert to MFD
> mfd: intel_pmc_bxt: Switch to use driver->dev_groups
> MAINTAINERS: Update entry for Intel Broxton PMC driver
>
> MAINTAINERS | 13 +-
> arch/x86/Kconfig | 2 +-
> arch/x86/include/asm/intel-mid.h | 9 +-
> arch/x86/include/asm/intel_pmc_ipc.h | 91 --
> arch/x86/include/asm/intel_scu_ipc.h | 104 +-
> arch/x86/include/asm/intel_scu_ipc_legacy.h | 76 ++
> arch/x86/include/asm/intel_telemetry.h | 3 +
> drivers/mfd/Kconfig | 18 +-
> drivers/mfd/Makefile | 1 +
> drivers/mfd/intel_pmc_bxt.c | 539 +++++++++
> drivers/mfd/intel_soc_pmic_bxtwc.c | 22 +-
> drivers/mfd/intel_soc_pmic_mrfld.c | 10 +-
> drivers/platform/x86/Kconfig | 49 +-
> drivers/platform/x86/Makefile | 2 +-
> drivers/platform/x86/intel_mid_powerbtn.c | 20 +-
> drivers/platform/x86/intel_pmc_ipc.c | 1031 -----------------
> drivers/platform/x86/intel_scu_ipc.c | 681 +++++------
> drivers/platform/x86/intel_scu_ipcutil.c | 43 +-
> drivers/platform/x86/intel_scu_pcidrv.c | 75 ++
> .../platform/x86/intel_telemetry_debugfs.c | 2 +-
> drivers/platform/x86/intel_telemetry_pltdrv.c | 101 +-
> drivers/usb/typec/tcpm/Kconfig | 2 +-
> drivers/watchdog/intel-mid_wdt.c | 53 +-
> include/linux/mfd/intel_pmc_bxt.h | 50 +
> include/linux/mfd/intel_soc_pmic.h | 15 +
> 25 files changed, 1319 insertions(+), 1693 deletions(-)
> delete mode 100644 arch/x86/include/asm/intel_pmc_ipc.h
> create mode 100644 arch/x86/include/asm/intel_scu_ipc_legacy.h
> create mode 100644 drivers/mfd/intel_pmc_bxt.c
> delete mode 100644 drivers/platform/x86/intel_pmc_ipc.c
> create mode 100644 drivers/platform/x86/intel_scu_pcidrv.c
> create mode 100644 include/linux/mfd/intel_pmc_bxt.h
>
> --
> 2.24.1
>
--
With Best Regards,
Andy Shevchenko
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