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ARM: dts: stm32: Update part number NVMEM description on stm32mp131 

[ Upstream commit 366384e495 ]

The STM32MP13x Device Part Number (also named RPN in reference manual)
only uses the first 12 bits in OTP4, all the other bit are reserved and
they can be different of zero; they must be masked in NVMEM result, so
the number of bits must be defined in the nvmem cell description.

Fixes: 1da8779c00 ("ARM: dts: stm32: add STM32MP13 SoCs support")
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Patrick Delaunay 2023-01-18 13:49:51 +01:00 committed by Greg Kroah-Hartman
parent 722ea8e50d
commit 76e64c9a0a
1 changed files with 1 additions and 0 deletions
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arch/arm/boot/dts/stm32mp131.dtsi
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@ -405,6 +405,7 @@ bsec: efuse@5c005000 {
part_number_otp: part_number_otp@4 {
reg = <0x4 0x2>;
bits = <0 12>;
};
ts_cal1: calib@5c {
reg = <0x5c 0x2>;