kernel/linux.git/drivers/mfd/mt6397-core.c, branch v7.1

mfd: mt6397: Properly fix CID of MT6328, MT6331 and MT6332

2026-03-25T12:45:09+00:00

CIDs set for MT6328, MT6331 and MT6332 are not appropriate. Many Android downstream kernels define CID as below, MT6328: #define PMIC6328_E1_CID_CODE 0x2810 #define PMIC6328_E2_CID_CODE 0x2820 #define PMIC6328_E3_CID_CODE 0x2830 MT6331/MT6332: #define PMIC6331_E1_CID_CODE 0x3110 #define PMIC6331_E2_CID_CODE 0x3120 #define PMIC6331_E3_CID_CODE 0x3130 #define PMIC6332_E1_CID_CODE 0x3210 #define PMIC6332_E2_CID_CODE 0x3220 #define PMIC6332_E3_CID_CODE 0x3230 The current configuration incorrectly uses the revision code as the CID. Therefore, the driver cannot detect the same PMIC of different revisions. (E1/E2 for MT6328, E1/E3 for MT6331/MT6332) Based on these, the CID of MT6328, MT6331 and MT6332 should be corrected. Additionally, the incorrect MT6331/MT6332 CID overlaps with the MT6320's actual CID: #define PMIC6320_E1_CID_CODE 0x1020 #define PMIC6320_E2_CID_CODE 0x2020 This causes a conflict in the switch-case statement of mt6397-irq.c, this prevents adding support for MT6320. Signed-off-by: Akari Tsuyukusa Reviewed-by: AngeloGioacchino Del Regno Link: https://patch.msgid.link/20260302140045.651727-1-akkun11.open@gmail.com Signed-off-by: Lee Jones

mfd: mt6397: Do not use generic name for keypad sub-devices

2025-07-24T10:27:20+00:00

Do not use "mtk-pmic-keys" when creating sub-device for the keypad to make sure the keypad driver will only bind to the sub-device if it has support for the variant/has matching compatible. Cc: stable@vger.kernel.org Fixes: 6e31bb8d3a63 ("mfd: mt6397: Add initial support for MT6328") Fixes: de58cee8c6b8 ("mfd: mt6397-core: Add MT6357 PMIC support") Fixes: 4a901e305011 ("mfd: mt6397-core: Add resources for PMIC keys for MT6359") Reported-by: Louis-Alexis Eyraud Signed-off-by: Dmitry Torokhov Tested-by: Louis-Alexis Eyraud # on Link: https://lore.kernel.org/r/r4k3pgd3ew3ypne7ernxuzwgniiyvzosbce4cfajbcu7equblt@yato35tjb3lw Signed-off-by: Lee Jones

mfd: mt6397-core: Add mfd_cell for mt6359-accdet

2025-03-14T08:59:07+00:00

Add an mfd_cell for mt6359-accdet and describe its IRQ resources to allow the mt6359-accdet driver to probe. Signed-off-by: Andrew Perepech Reviewed-by: AngeloGioacchino Del Regno Signed-off-by: Nícolas F. R. A. Prado Acked-by: Lee Jones Link: https://lore.kernel.org/r/20250305-mt6359-accdet-dts-v4-2-e5ffa5ee9991@collabora.com Signed-off-by: Lee Jones

mfd: mt6397: Add initial support for MT6328

2024-10-31T16:25:03+00:00

The MT6328 PMIC is commonly used with the MT6735 SoC. Add initial support for this PMIC. Signed-off-by: Yassine Oudjana Reviewed-by: AngeloGioacchino Del Regno Link: https://lore.kernel.org/r/20241018081050.23592-5-y.oudjana@protonmail.com Signed-off-by: Lee Jones

mfd: mt6397-core: Add support for AUXADCs on MT6357/58/59 PMICs

2024-07-04T16:08:03+00:00

Add the relevant AUXADC driver entries to the MFD cells of the MT6357, MT6358, MT6359 PMICs to support their Auxiliary ADCs. Signed-off-by: AngeloGioacchino Del Regno Link: https://lore.kernel.org/r/20240530093410.112716-4-angelogioacchino.delregno@collabora.com Signed-off-by: Lee Jones

mfd: mt6397-core: Register mt6357 sound codec

2024-02-29T17:44:49+00:00

Add MT6357 codec entry in the MFD driver. Signed-off-by: Fabien Parent Signed-off-by: Alexandre Mergnat Reviewed-by: AngeloGioacchino Del Regno Link: https://lore.kernel.org/r/20240226-audio-i350-v1-13-4fa1cea1667f@baylibre.com Signed-off-by: Lee Jones

mfd: Explicitly include correct DT includes

2023-08-18T20:48:03+00:00

The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Signed-off-by: Rob Herring Link: https://lore.kernel.org/r/20230714174731.4059811-1-robh@kernel.org Signed-off-by: Lee Jones

mfd: mt6397: Add basic support for MT6331+MT6332 PMIC

2022-07-19T09:54:41+00:00

Add support for the MT6331 PMIC with MT6332 Companion PMIC, found in MT6795 Helio X10 smartphone platforms. This combo has support for multiple devices but, for a start, only the following have been implemented: - Regulators (two instances, one in MT6331, one in MT6332) - RTC (MT6331) - Keys (MT6331) - Interrupts (MT6331 also dispatches MT6332's interrupts) There's more to be implemented, especially for MT6332, which will come at a later stage. Signed-off-by: AngeloGioacchino Del Regno Reviewed-by: Matthias Brugger Signed-off-by: Lee Jones Link: https://lore.kernel.org/r/20220627123954.64299-1-angelogioacchino.delregno@collabora.com

mfd: mt6397-core: Add MT6357 PMIC support

2022-07-19T09:54:39+00:00

Adds support for PMIC keys, Regulator, and RTC for the MT6357 PMIC. Signed-off-by: Fabien Parent Signed-off-by: Lee Jones Link: https://lore.kernel.org/r/20220531124959.202787-5-fparent@baylibre.com

mfd: mt6397-core: Add resources for PMIC keys for MT6359

2022-04-26T18:23:19+00:00

Add the MFD resources in order to be able to probe and use the keyboard driver for the MT6359 PMIC. Signed-off-by: Fabien Parent Signed-off-by: Lee Jones Link: https://lore.kernel.org/r/20220415153629.1817202-4-fparent@baylibre.com