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Message-ID: <20170403143430.4efwx7muuveun72f@dell>
Date: Mon, 3 Apr 2017 15:34:30 +0100
From: Lee Jones <lee.jones@...aro.org>
To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
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>,
Zhang Rui <rui.zhang@...el.com>,
Eduardo Valentin <edubezval@...il.com>
Subject: Re: [PATCH v3 1/3] mfd: intel_soc_pmic: Fix a mess with compilation
units
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 +-
> drivers/gpio/Kconfig | 2 +-
> drivers/mfd/Kconfig | 14 ++++++++++++--
> drivers/mfd/Makefile | 2 +-
> drivers/platform/x86/Kconfig | 2 +-
> drivers/thermal/Kconfig | 2 +-
> 6 files changed, 17 insertions(+), 7 deletions(-)
Applied, thanks.
> 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.
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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