thermal/drivers/imx: Add support for loading calibration data from OCOTP

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The TMU TASR, TCALIVn, TRIM registers must be explicitly programmed with
calibration values in OCOTP. Add support for reading the OCOTP calibration
data and programming those into the TMU hardware.

The MX8MM/MX8MN TMUv1 uses only one OCOTP cell, while MX8MP TMUv2 uses 4,
the programming differs in each case.

Based on U-Boot commits:
70487ff386c ("imx8mm: Load fuse for TMU TCALIV and TASR")
ebb9aab318b ("imx: load calibration parameters from fuse for i.MX8MP")

Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Daniel Lezcano <daniel.lezcano@kernel.org>

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Marek Vasut 2022-12-02 17:23:53 +01:00 • committed by Daniel Lezcano

parent 8848c0d7a0

commit 4032916488

1 changed files with 164 additions and 0 deletions

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drivers/thermal/imx8mm_thermal.c

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