[PATCH v2 0/3] nvmem: mtk-efuse: mt6572 support

[Roman Vivchar via B4 Relay <devnull+rva333.protonmail.com@kernel.org>]

This patch series adds MediaTek mt6572 efuse support. Unlike newer SoCs,
its efuse controller doesn't work properly with 8-bit reads, leading to
invalid data with current mtk-efuse driver implementation.

This behavior can be observed with devmem (0x10009174 and 0x10009178 are
thermal calibration cells):
~ # devmem 0x10009174 32
0x00CDD4CD
~ # devmem 0x10009178 32
0x0F76865D
~ # devmem 0x10009174 8
0xCD
~ # devmem 0x10009175 8
0x00
~ # devmem 0x10009176 8
0x00
~ # devmem 0x10009177 8
0x00
~ # devmem 0x10009178 8
0x5D
~ # devmem 0x10009179 8
0x00
~ # devmem 0x1000917a 8
0x00
~ # devmem 0x1000917b 8
0x00

Patch 1 adds dt-bindings compatible for the mt6572,
Patch 2 adds platform data option to use aligned 32-bit reads instead
of plain readb().
Patch 3 adds platform data for mt6572 SoC.

Signed-off-by: Roman Vivchar <rva333@protonmail.com>
---
Changes in v2:
- dt-bindings: make mediatek,mt6572-efuse standalone compatible
- Driver: add 'mtk_reg_read_aligned' helper instead of modifying 'mtk_reg_read'
- Link to v1: https://patch.msgid.link/20260715-6572-nvmem-v1-0-9c13be99d077@protonmail.com

---
Roman Vivchar (3):
      dt-bindings: nvmem: mediatek: efuse: add mt6572
      nvmem: mtk-efuse: add support for 32-bit aligned reads
      nvmem: mtk-efuse: add mt6572 support

 .../devicetree/bindings/nvmem/mediatek,efuse.yaml  |  5 ++-
 drivers/nvmem/mtk-efuse.c                          | 41 +++++++++++++++++++++-
 2 files changed, 44 insertions(+), 2 deletions(-)
---
base-commit: 8cd9520d35a6c38db6567e97dd93b1f11f185dc6
change-id: 20260710-6572-nvmem-eb98c7a73351

Best regards,
--  
Roman Vivchar <rva333@protonmail.com>