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| author | Sneh Mankad <sneh.mankad@oss.qualcomm.com> | 2025-08-25 11:53:50 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-10-15 12:03:22 +0200 |
| commit | b499406552834d5bbf798ff3525f1b6f3f983dc0 (patch) | |
| tree | 6e4ea1214f411e75853064b793fc94faee6ee67d /drivers/soc | |
| parent | 79cb6fb85833f6308b4d1d29b679ba4149beb149 (diff) | |
| download | linux-b499406552834d5bbf798ff3525f1b6f3f983dc0.tar.gz linux-b499406552834d5bbf798ff3525f1b6f3f983dc0.tar.bz2 linux-b499406552834d5bbf798ff3525f1b6f3f983dc0.zip | |
soc: qcom: rpmh-rsc: Unconditionally clear _TRIGGER bit for TCS
[ Upstream commit f87412d18edb5b8393eb8cb1c2d4a54f90185a21 ]
Unconditionally clear the TCS_AMC_MODE_TRIGGER bit when a
transaction completes. Previously this bit was only cleared when
a wake TCS was borrowed as an AMC TCS but not for dedicated
AMC TCS. Leaving this bit set for AMC TCS and entering deeper low
power modes can generate a false completion IRQ.
Prevent this scenario by always clearing the TCS_AMC_MODE_TRIGGER
bit upon receiving a completion IRQ.
Fixes: 15b3bf61b8d4 ("soc: qcom: rpmh-rsc: Clear active mode configuration for wake TCS")
Signed-off-by: Sneh Mankad <sneh.mankad@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250825-rpmh_rsc_change-v1-1-138202c31bf6@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/soc')
| -rw-r--r-- | drivers/soc/qcom/rpmh-rsc.c | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/drivers/soc/qcom/rpmh-rsc.c b/drivers/soc/qcom/rpmh-rsc.c index fdab2b1067db..c6f7d5c9c493 100644 --- a/drivers/soc/qcom/rpmh-rsc.c +++ b/drivers/soc/qcom/rpmh-rsc.c @@ -453,13 +453,10 @@ static irqreturn_t tcs_tx_done(int irq, void *p) trace_rpmh_tx_done(drv, i, req); - /* - * If wake tcs was re-purposed for sending active - * votes, clear AMC trigger & enable modes and + /* Clear AMC trigger & enable modes and * disable interrupt for this TCS */ - if (!drv->tcs[ACTIVE_TCS].num_tcs) - __tcs_set_trigger(drv, i, false); + __tcs_set_trigger(drv, i, false); skip: /* Reclaim the TCS */ write_tcs_reg(drv, drv->regs[RSC_DRV_CMD_ENABLE], i, 0); |