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SubjectRe: [PATCH v5 1/2] mfd: intel_soc_pmic: Select designware i2c-bus driver
On Fri, 26 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@linux.intel.com>
> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> ---
> Changes in v2:
> -Fix Kconfig depends and selects to fix warning reported by kbuild test robot
> -Improve commit msg (add example of ACPI errors this avoids)
> Changes in v3:
> -No changes
> Changes in v4:
> -Add explanation why this is a bool and why it selects i2c-designwaree
> to the help text rather then as comments in the Kconfig
> Changes in v5:
> -Add Andy's Reviewed-by
> -Fix OpRegion spelling
> ---
> drivers/mfd/Kconfig | 11 +++++++++--
> 1 file changed, 9 insertions(+), 2 deletions(-)

Applied, thanks.

> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> index 1b6a83a4a114..4f71cab2e6e8 100644
> --- a/drivers/mfd/Kconfig
> +++ b/drivers/mfd/Kconfig
> @@ -448,17 +448,24 @@ config LPC_SCH
>
> config INTEL_SOC_PMIC
> bool "Support for Crystal Cove PMIC"
> - depends on GPIOLIB
> - depends on I2C=y
> + depends on HAS_IOMEM
> + select GPIOLIB
> + select I2C
> select MFD_CORE
> select REGMAP_I2C
> select REGMAP_IRQ
> + select COMMON_CLK
> + select I2C_DESIGNWARE_PLATFORM
> help
> 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.
>
> + This option is a bool as it provides an ACPI OpRegion which must be
> + available before any devices using it are probed. This option also
> + causes the designware-i2c driver to be builtin for the same reason.
> +
> config INTEL_SOC_PMIC_BXTWC
> tristate "Support for Intel Broxton Whiskey Cove PMIC"
> depends on INTEL_PMC_IPC

--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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