The workaround for T241-MPAM-4 was applied incorrectly, leading to MBW_MIN being programmed with a zero value when the user specifies MBW_MAX is less than 5%. This patch ensures that MBW_MIN is programmed with a non-zero value, set to 1 to fix the T241-MPAM-4 as expected. Fixes: 13ff1b527e40 ("arm_mpam: Add workaround for T241-MPAM-4") Signed-off-by: Shanker Donthineni <sdonthineni@xxxxxxxxxx> --- drivers/platform/arm64/mpam/mpam_devices.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/platform/arm64/mpam/mpam_devices.c b/drivers/platform/arm64/mpam/mpam_devices.c index a802ca1c9f05..e49a27c02c66 100644 --- a/drivers/platform/arm64/mpam/mpam_devices.c +++ b/drivers/platform/arm64/mpam/mpam_devices.c @@ -2990,7 +2990,7 @@ static void mpam_extend_config(struct mpam_class *class, struct mpam_config *cfg } if (mpam_has_quirk(T241_FORCE_MBW_MIN_TO_ONE, class) && - cfg->mbw_min == 0) { + cfg->mbw_min <= min_hw_granule) { cfg->mbw_min = min_hw_granule + 1; mpam_set_feature(mpam_feat_mbw_min, cfg); } -- 2.25.1