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authorHans de Goede <hdegoede@redhat.com>2017-06-04 14:31:28 +0300
committerLee Jones <lee.jones@linaro.org>2017-07-06 10:29:13 +0300
commitaaac4a2eadaa6474a347ee4b07d4ea8bb6908c8e (patch)
treecf56995e24b172976663fc5a82c897373ea42e15 /drivers/ata/ahci.h
parentde85d79f4aab67fe0537dd6e2c5d545b88239cc4 (diff)
downloadlinux-aaac4a2eadaa6474a347ee4b07d4ea8bb6908c8e.tar.xz
mfd: axp20x-i2c: Document that this must be builtin on x86
On x86 the AXP288 PMIC provides an ACPI OpRegion handler, which must be available before other drivers using it are loaded, which can only be ensured if the MFD, OpRegion and i2c-bus drivers are built-in. Since the AXP20x MFD code is used on non x86 too we cannot simply change this into a bool, I've tried some Kconfig magic with if x86 but I could not get this working correctly, so this commit just documents that this should be built-in on x86, which fixes errors like these during boot: mmc0: SDHCI controller on ACPI [80860F14:00] using ADMA ACPI Error: No handler for Region [REGS] (ffff93543b0cc3a8) [UserDefinedRegion] ACPI Error: Region UserDefinedRegion (ID=143) has no handler (20170119/exfldio-2 ACPI Error: Method parse/execution failed [\_SB.PCI0.I2C7.PMI5.GET] (Node ffff93 ACPI Error: Method parse/execution failed [\_SB.PCI0.SHC1._PS0] (Node ffff93543b acpi 80860F14:02: Failed to change power state to D0 Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Chen-Yu Tsai <wens@csie.org> Tested-by: russianneuromancer <russianneuromancer@ya.ru> Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/ata/ahci.h')
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