linux-kernel - Re: [PATCH v7 00/19] platform/x86: Rework intel_scu_ipc and intel_pmc

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Date:   Mon, 2 Mar 2020 14:26:21 +0000
From:   Lee Jones <lee.jones@...aro.org>
To:     Mika Westerberg <mika.westerberg@...ux.intel.com>
Cc:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Darren Hart <dvhart@...radead.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.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>,
        "David E . Box" <david.e.box@...ux.intel.com>,
        Guenter Roeck <linux@...ck-us.net>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Wim Van Sebroeck <wim@...ux-watchdog.org>,
        platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v7 00/19] platform/x86: Rework intel_scu_ipc and
 intel_pmc_ipc drivers

On Mon, 02 Mar 2020, Mika Westerberg wrote:

> Hi all,
> 
> 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).
> 
> This is on top of platform-driver-x86.git/for-next branch because there is
> already some cleanup work queued that re-organizes Kconfig and Makefile
> entries.
> 
> I have tested this on Intel Joule (Broxton-M) board.
> 
> Changes from v6:
> 
>   * Added Reviewed-by tag from Andy
>   * Expanded PMC, IPC and IA acronyms
>   * Drop TCO_DEVICE_NAME, PUNIT_DEVICE_NAME and TELEMETRY_DEVICE_NAME
>   * Move struct intel_pmc_dev into include/linux/mfd/intel_pmc_bxt.h
>   * Add PMC_DEVICE_MAX to the enum and use it
>   * Add kernel-docs for simplecmd_store() and northpeak_store()
>   * Use if (ret) return ret; over the ternary operator
>   * Drop "This is index X" from comments
>   * Use acpi_has_watchdog() to determine whether iTCO_wdt is added or not.
>   * Rename intel_scu_ipc_pdata -> intel_scu_ipc_data to make it less
>     confusing wrt. platform data for platform drivers.

Any reason why you've dropped all my tags?

-- 
Lee Jones [李琼斯]
Linaro Services Technical Lead
Linaro.org │ Open source software for ARM SoCs
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