From: Stephen Boyd <sboyd@kernel.org>
To: Fenglin Wu <quic_fenglinw@quicinc.com>,
linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: collinsd@codeaurora.org, subbaram@codeaurora.org,
quic_fenglinw@quicinc.com
Subject: Re: [RESEND PATCH v1 5/9] spmi: pmic-arb: correct duplicate APID to PPID mapping logic
Date: Tue, 12 Oct 2021 10:44:32 -0700 [thread overview]
Message-ID: <163406067294.936959.15501496135258886323@swboyd.mtv.corp.google.com> (raw)
In-Reply-To: <1631860384-26608-6-git-send-email-quic_fenglinw@quicinc.com>
Quoting Fenglin Wu (2021-09-16 23:33:00)
> From: David Collins <collinsd@codeaurora.org>
>
> Correct the way that duplicate PPID mappings are handled for PMIC
> arbiter v5. The final APID mapped to a given PPID should be the
> one which has write owner = APPS EE, if it exists, or if not
> that, then the first APID mapped to the PPID, if it exists.
>
> Signed-off-by: David Collins <collinsd@codeaurora.org>
> Signed-off-by: Fenglin Wu <quic_fenglinw@quicinc.com>
> ---
Does this need a Fixes tag?
> drivers/spmi/spmi-pmic-arb.c | 13 +++++++------
> 1 file changed, 7 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c
> index 59c445b..f1b72d8 100644
> --- a/drivers/spmi/spmi-pmic-arb.c
> +++ b/drivers/spmi/spmi-pmic-arb.c
> @@ -918,7 +918,8 @@ static int pmic_arb_read_apid_map_v5(struct spmi_pmic_arb *pmic_arb)
> * version 5, there is more than one APID mapped to each PPID.
> * The owner field for each of these mappings specifies the EE which is
> * allowed to write to the APID. The owner of the last (highest) APID
> - * for a given PPID will receive interrupts from the PPID.
> + * which has the IRQ owner bit set for a given PPID will receive
> + * interrupts from the PPID.
> */
> for (i = 0; ; i++, apidd++) {
> offset = pmic_arb->ver_ops->apid_map_offset(i);
> @@ -941,16 +942,16 @@ static int pmic_arb_read_apid_map_v5(struct spmi_pmic_arb *pmic_arb)
> apid = pmic_arb->ppid_to_apid[ppid] & ~PMIC_ARB_APID_VALID;
> prev_apidd = &pmic_arb->apid_data[apid];
>
> - if (valid && is_irq_ee &&
> - prev_apidd->write_ee == pmic_arb->ee) {
> + if (!valid || apidd->write_ee == pmic_arb->ee) {
> + /* First PPID mapping or one for this EE */
> + pmic_arb->ppid_to_apid[ppid] = i | PMIC_ARB_APID_VALID;
> + } else if (valid && is_irq_ee &&
> + prev_apidd->write_ee == pmic_arb->ee) {
This can be one line please.
> /*
> * Duplicate PPID mapping after the one for this EE;
> * override the irq owner
> */
> prev_apidd->irq_ee = apidd->irq_ee;
> - } else if (!valid || is_irq_ee) {
> - /* First PPID mapping or duplicate for another EE */
> - pmic_arb->ppid_to_apid[ppid] = i | PMIC_ARB_APID_VALID;
> }
>
> apidd->ppid = ppid;
> --
> 2.7.4
>
next prev parent reply other threads:[~2021-10-12 17:44 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-17 6:32 [RESEND PATCH v1 0/9] A bunch of fix and optimization patches in spmi-pmic-arb.c Fenglin Wu
2021-09-17 6:32 ` [RESEND PATCH v1 1/9] spmi: pmic-arb: add a print in cleanup_irq Fenglin Wu
2021-10-12 17:46 ` Stephen Boyd
2021-10-13 4:15 ` Fenglin Wu
2021-10-13 19:35 ` Stephen Boyd
2021-10-14 2:26 ` Fenglin Wu
2021-10-15 1:09 ` Stephen Boyd
2021-10-15 1:27 ` Fenglin Wu
2021-10-18 0:16 ` Fenglin Wu
2021-09-17 6:32 ` [RESEND PATCH v1 2/9] spmi: pmic-arb: do not ack and clear peripheral interrupts " Fenglin Wu
2021-09-17 6:32 ` [RESEND PATCH v1 3/9] spmi: pmic-arb: check apid against limits before calling irq handler Fenglin Wu
2021-10-12 18:02 ` Stephen Boyd
2021-10-13 5:31 ` Fenglin Wu
2021-10-13 19:25 ` Stephen Boyd
2021-10-14 3:11 ` Fenglin Wu
2021-10-15 1:15 ` Stephen Boyd
2021-10-15 1:54 ` Fenglin Wu
2021-09-17 6:32 ` [RESEND PATCH v1 4/9] spmi: pmic-arb: add support to dispatch interrupt based on IRQ status Fenglin Wu
2021-09-17 6:33 ` [RESEND PATCH v1 5/9] spmi: pmic-arb: correct duplicate APID to PPID mapping logic Fenglin Wu
2021-10-12 17:44 ` Stephen Boyd [this message]
2021-10-13 5:37 ` Fenglin Wu
2021-09-17 6:33 ` [RESEND PATCH v1 6/9] spmi: pmic-arb: block access for invalid PMIC arbiter v5 SPMI writes Fenglin Wu
2021-09-17 6:33 ` [RESEND PATCH v1 7/9] spmi: pmic-arb: support updating interrupt type flags Fenglin Wu
2021-10-12 17:42 ` Stephen Boyd
2021-10-13 6:27 ` Fenglin Wu
2021-10-13 19:37 ` Stephen Boyd
2021-10-14 3:17 ` Fenglin Wu
2021-09-17 6:33 ` [RESEND PATCH v1 8/9] spmi: pmic-arb: make interrupt support optional Fenglin Wu
2021-10-12 17:41 ` Stephen Boyd
2021-10-13 8:36 ` Fenglin Wu
2021-10-13 19:38 ` Stephen Boyd
2021-10-14 3:20 ` Fenglin Wu
2021-10-15 1:17 ` Stephen Boyd
2021-10-15 1:30 ` Fenglin Wu
2021-09-17 6:33 ` [RESEND PATCH v1 9/9] spmi: pmic-arb: increase SPMI transaction timeout delay Fenglin Wu
-- strict thread matches above, loose matches on Subject: below --
2021-09-01 8:18 [RESEND PATCH v1 0/9] A bunch of fix and optimization patches in spmi-pmic-arb.c Fenglin Wu
2021-09-01 8:18 ` [RESEND PATCH v1 5/9] spmi: pmic-arb: correct duplicate APID to PPID mapping logic Fenglin Wu
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