linux-kernel - Re: [PATCH v3 1/3] mfd: intel_soc_pmic: Fix a mess with compilation units

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Date:   Mon, 27 Mar 2017 10:14:42 +0800
From:   Zhang Rui <rui.zhang@...el.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Lee Jones <lee.jones@...aro.org>
Cc:     linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org,
        linux-gpio@...r.kernel.org, linux-pm@...r.kernel.org,
        platform-driver-x86@...r.kernel.org,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Linus Walleij <linus.walleij@...aro.org>,
        Eduardo Valentin <edubezval@...il.com>
Subject: Re: [PATCH v3 1/3] mfd: intel_soc_pmic: Fix a mess with compilation
 units

On Sun, 2017-03-26 at 15:37 +0300, Andy Shevchenko wrote:
> On Thu, 2017-03-23 at 12:12 +0000, Lee Jones wrote:
> > 
> > On Fri, 17 Mar 2017, Andy Shevchenko wrote:
> > 
> > > 
> > > Crystal Cove and Whiskey Cove are two different PMICs which are
> > > installed on Intel Atom SoC based platforms.
> > > 
> > > Moreover there are two independent drivers that by some reason
> > > were
> > > supposed (*) to get into one kernel module.
> > > 
> > > Fix the mess by clarifying Kconfig option for Crystal Cove and
> > > split
> > > Whiskey Cove out of it.
> > > 
> > > (*) It looks like the configuration was never tested with
> > >     INTEL_SOC_PMIC=n. The line in Makefile is actually wrong.
> > > 
> > > Cc: "Rafael J. Wysocki" <rjw@...ysocki.net> (supporter:ACPI)
> > > Cc: Linus Walleij <linus.walleij@...aro.org> (maintainer:GPIO
> > > SUBSYSTEM)
> > > Cc: Zhang Rui <rui.zhang@...el.com> (supporter:THERMAL)
> > > Cc: Eduardo Valentin <edubezval@...il.com> (supporter:THERMAL)
> > > Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com
> > > >
> > > ---
> > > - make option visible
> > > - fix dependencies
> > >  drivers/acpi/Kconfig         |  2 +-
> > This needs an ACPI Ack before I can do anything with it.
> Rafael, can you give you tag?
> 
> > 
> > 
> > > 
> > >  drivers/gpio/Kconfig         |  2 +-
> > >  drivers/mfd/Kconfig          | 14 ++++++++++++--
> > >  drivers/mfd/Makefile         |  2 +-
> > >  drivers/platform/x86/Kconfig |  2 +-
> > > 

> > >  drivers/thermal/Kconfig      |  2 +-

For the thermal part,
Acked-by: Zhang Rui <rui.zhang@...el.com>

thanks,
rui
> > >  6 files changed, 17 insertions(+), 7 deletions(-)
> > > 
> > > diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
> > > index 83e5f7e1a20d..03708e08fcb4 100644
> > > --- a/drivers/acpi/Kconfig
> > > +++ b/drivers/acpi/Kconfig
> > > @@ -512,7 +512,7 @@ config XPOWER_PMIC_OPREGION
> > >  
> > >  config BXT_WC_PMIC_OPREGION
> > >  	bool "ACPI operation region support for BXT WhiskeyCove
> > > PMIC"
> > > -	depends on INTEL_SOC_PMIC
> > > +	depends on INTEL_SOC_PMIC_BXTWC
> > >  	help
> > >  	  This config adds ACPI operation region support for BXT
> > > WhiskeyCove PMIC.
> > >  
> > > diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
> > > index 05043071fc98..9b1bcb4d0df7 100644
> > > --- a/drivers/gpio/Kconfig
> > > +++ b/drivers/gpio/Kconfig
> > > @@ -1054,7 +1054,7 @@ config GPIO_UCB1400
> > >  
> > >  config GPIO_WHISKEY_COVE
> > >  	tristate "GPIO support for Whiskey Cove PMIC"
> > > -	depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
> > > +	depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
> > >  	select GPIOLIB_IRQCHIP
> > >  	help
> > >  	  Support for GPIO pins on Whiskey Cove PMIC.
> > > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> > > index 55ecdfb74d31..e43afb8956ea 100644
> > > --- a/drivers/mfd/Kconfig
> > > +++ b/drivers/mfd/Kconfig
> > > @@ -425,18 +425,28 @@ config LPC_SCH
> > >  	  System Management Bus and General Purpose I/O.
> > >  
> > >  config INTEL_SOC_PMIC
> > > -	bool "Support for Intel Atom SoC PMIC"
> > > +	bool "Support for Crystal Cove PMIC"
> > >  	depends on GPIOLIB
> > >  	depends on I2C=y
> > >  	select MFD_CORE
> > >  	select REGMAP_I2C
> > >  	select REGMAP_IRQ
> > >  	help
> > > -	  Select this option to enable support for the PMIC
> > > device
> > > +	  Select this option to enable support for Crystal Cove
> > > PMIC
> > >  	  on some Intel SoC systems. The PMIC provides ADC,
> > > GPIO,
> > >  	  thermal, charger and related power management
> > > functions
> > >  	  on these systems.
> > >  
> > > +config INTEL_SOC_PMIC_BXTWC
> > > +	tristate "Support for Intel Broxton Whiskey Cove PMIC"
> > > +	select MFD_CORE
> > > +	select REGMAP_IRQ
> > > +	help
> > > +	  Select this option to enable support for Whiskey Cove
> > > PMIC
> > > +	  on Intel Broxton systems. The PMIC provides ADC, GPIO,
> > > +	  thermal, charger and related power management
> > > functions
> > > +	  on these systems.
> > > +
> > >  config MFD_INTEL_LPSS
> > >  	tristate
> > >  	select COMMON_CLK
> > > diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
> > > index 31ce07611a6f..201aeaf5112a 100644
> > > --- a/drivers/mfd/Makefile
> > > +++ b/drivers/mfd/Makefile
> > > @@ -207,8 +207,8 @@ obj-$(CONFIG_MFD_RT5033)	+= rt5033.o
> > >  obj-$(CONFIG_MFD_SKY81452)	+= sky81452.o
> > >  
> > >  intel-soc-pmic-objs		:= intel_soc_pmic_core.o
> > > intel_soc_pmic_crc.o
> > > -intel-soc-pmic-$(CONFIG_INTEL_PMC_IPC)	+=
> > > intel_soc_pmic_bxtwc.o
> > >  obj-$(CONFIG_INTEL_SOC_PMIC)	+= intel-soc-pmic.o
> > > +obj-$(CONFIG_INTEL_SOC_PMIC_BXTWC)	+=
> > > intel_soc_pmic_bxtwc.o
> > >  obj-$(CONFIG_MFD_MT6397)	+= mt6397-core.o
> > >  
> > >  obj-$(CONFIG_MFD_ALTERA_A10SR)	+= altera-a10sr.o
> > > diff --git a/drivers/platform/x86/Kconfig
> > > b/drivers/platform/x86/Kconfig
> > > index e1bffc9bb194..883fbe7a2466 100644
> > > --- a/drivers/platform/x86/Kconfig
> > > +++ b/drivers/platform/x86/Kconfig
> > > @@ -1019,7 +1019,7 @@ config INTEL_PMC_IPC
> > >  config INTEL_BXTWC_PMIC_TMU
> > >  	tristate "Intel BXT Whiskey Cove TMU Driver"
> > >  	depends on REGMAP
> > > -	depends on INTEL_SOC_PMIC && INTEL_PMC_IPC
> > > +	depends on INTEL_SOC_PMIC_BXTWC && INTEL_PMC_IPC
> > >  	---help---
> > >  	  Select this driver to use Intel BXT Whiskey Cove PMIC
> > > TMU
> > > feature.
> > >  	  This driver enables the alarm wakeup functionality in
> > > the
> > > TMU unit
> > > diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig
> > > index 776b34396144..751e50a3d946 100644
> > > --- a/drivers/thermal/Kconfig
> > > +++ b/drivers/thermal/Kconfig
> > > @@ -365,7 +365,7 @@ endmenu
> > >  
> > >  config INTEL_BXT_PMIC_THERMAL
> > >  	tristate "Intel Broxton PMIC thermal driver"
> > > -	depends on X86 && INTEL_SOC_PMIC && REGMAP
> > > +	depends on X86 && INTEL_SOC_PMIC_BXTWC && REGMAP
> > >  	help
> > >  	  Select this driver for Intel Broxton PMIC with ADC
> > > channels monitoring
> > >  	  system temperature measurements and alerts.
> >