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drivers: can: stm32: correct timing_max parameters

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The timing_max parameters defined in the stm32 bxcan driver don't match the
register description in the reference manuals.
- sjw does have only 2 bits representing 1 to 4 tq.
- phase_seg1 and phase_seg2 max is one tq higher.

I have checked the following reference manuals and all match:
- RM0090: STM32F405, F415, F407, F417, F427, F437 AND F429
- RM0008: STM32F101, F102, F103, F105, F107 advanced arm-based mcus
- RM0351, RM0394: all STM32L4
- RM0091: all STM32F0 with CAN support

Signed-off-by: Thomas Stranger <thomas.stranger@outlook.com>
This commit is contained in:
Thomas Stranger 2023-08-13 13:09:26 +02:00 • committed by Carles Cufí
commit cec279b5b6
1 changed files with 3 additions and 3 deletions
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6
drivers/can/can_stm32.c
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@ -1069,10 +1069,10 @@ static const struct can_driver_api can_api_funcs = {
.prescaler = 0x01 .prescaler = 0x01
}, },
.timing_max = { .timing_max = {
.sjw = 0x07, .sjw = 0x04,
.prop_seg = 0x00, .prop_seg = 0x00,
.phase_seg1 = 0x0F, .phase_seg1 = 0x10,
.phase_seg2 = 0x07, .phase_seg2 = 0x08,
.prescaler = 0x400 .prescaler = 0x400
} }
}; };