linux-kernel - Re: [PATCH v4 1/2] mfd: intel_soc_pmic: Select designware i2c-bus driver

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Message-ID: <1495479778.6967.74.camel@linux.intel.com>
Date:   Mon, 22 May 2017 22:02:58 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Lee Jones <lee.jones@...aro.org>,
        Hans de Goede <hdegoede@...hat.com>
Cc:     linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 1/2] mfd: intel_soc_pmic: Select designware i2c-bus
 driver

On Mon, 2017-05-22 at 11:57 +0100, Lee Jones wrote:
> On Mon, 15 May 2017, Hans de Goede wrote:
> 
> > The Crystal Cove PMIC provides an ACPI OPRegion handler, which must
> > be
> > available before other drivers using it are loaded, which is why
> > INTEL_SOC_PMIC is a bool.
> > 
> > Just having the driver is not enough, the driver for the i2c-bus
> > must
> > also be built in, to ensure this, this patch adds a select for it.
> > 
> > This fixes errors like these during boot:
> > 
> > mmc0: SDHCI controller on ACPI [80860F14:00] using ADMA
> > ACPI Error: No handler for Region [REGS] (ffff93543b0cc3a8)
> > [UserDefinedRegion] (20170119/evregion-166)
> > ACPI Error: Region UserDefinedRegion (ID=143) has no handler
> > (20170119/exfldio-299)
> > ACPI Error: Method parse/execution failed [\_SB.PCI0.I2C7.PMI5.GET]
> > (Node ffff93543b0cde10), AE_NOT_EXIST (20170119/psparse-543)
> > ACPI Error: Method parse/execution failed [\_SB.PCI0.SHC1._PS0]
> > (Node ffff93543b0b5cd0), AE_NOT_EXIST (20170119/psparse-543)
> > acpi 80860F14:02: Failed to change power state to D0
> > 
> > While at it this patch also changes the human readable name of the
> > Kconfig
> > option to make clear the INTEL_SOC_PMIC option selects support for
> > the
> > Intel Crystal Cove PMIC and documents why this is a bool.
> > 
> > Cc: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> > Signed-off-by: Hans de Goede <hdegoede@...hat.com>
> 
> Would be good to get an Ack by the users/maintainers of this driver.

I'm not sure you will get (active) one.

>From my prospective, FWIW:
Reviewed-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>


> 
> > ---
> > Note this patch will partially conflicts with (contains the same
> > changes as)
> > a patch in Andy Shevchenko's tree.
> 
> Has this been sorted now?

>From code it looks like (renaming is already done ---vvv).
 
> >  config INTEL_SOC_PMIC
> >  	bool "Support for Crystal Cove PMIC"


-- 
Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Intel Finland Oy