From patchwork Fri Aug 20 04:57:56 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fenglin Wu X-Patchwork-Id: 12448413 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7D2CDC4338F for ; Fri, 20 Aug 2021 04:58:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5E31061029 for ; Fri, 20 Aug 2021 04:58:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233661AbhHTE7Q (ORCPT ); Fri, 20 Aug 2021 00:59:16 -0400 Received: from alexa-out.qualcomm.com ([129.46.98.28]:34056 "EHLO alexa-out.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229457AbhHTE7P (ORCPT ); Fri, 20 Aug 2021 00:59:15 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1629435518; x=1660971518; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=TT6H1LTJc5D9BENIvvBWTikBFkwSSOsfTIGLszPVMv8=; b=EW8sQy1U5yB+aN9w9SlFZb8pYJ7I21wn41zJYE0PPKRjbJQB5AFo5c2M PCgSAt7OqquqzpcEufFXVmbnRuy7GQzp16jtQBgChdY7u78SqQT8OGZXc wBLPlbynAMcrF8p5rnfg26BYnwiqKa/U+MVe7TEUSWqcG7ij53cZLSJYG A=; Received: from ironmsg-lv-alpha.qualcomm.com ([10.47.202.13]) by alexa-out.qualcomm.com with ESMTP; 19 Aug 2021 21:58:38 -0700 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg-lv-alpha.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Aug 2021 21:58:37 -0700 Received: from nalasex01c.na.qualcomm.com (10.47.97.35) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.858.15; Thu, 19 Aug 2021 21:58:37 -0700 Received: from fenglinw-gv.qualcomm.com (10.80.80.8) by nalasex01c.na.qualcomm.com (10.47.97.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.858.15; Thu, 19 Aug 2021 21:58:35 -0700 From: Fenglin Wu To: , , CC: , , , Abhijeet Dharmapurikar Subject: [PATCH V1 1/9] spmi: pmic-arb: add a print in cleanup_irq Date: Fri, 20 Aug 2021 12:57:56 +0800 Message-ID: <1629435488-10228-2-git-send-email-quic_fenglinw@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1629435488-10228-1-git-send-email-quic_fenglinw@quicinc.com> References: <1629435488-10228-1-git-send-email-quic_fenglinw@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanexm03h.na.qualcomm.com (10.85.0.50) To nalasex01c.na.qualcomm.com (10.47.97.35) Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org From: Abhijeet Dharmapurikar The cleanup_irq() was meant to clear and mask interrupts that were left enabled in the hardware but there was no interrupt handler registered for it. Add an error print when it gets invoked. Signed-off-by: Abhijeet Dharmapurikar Signed-off-by: David Collins Signed-off-by: Fenglin Wu --- drivers/spmi/spmi-pmic-arb.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c index bbbd311..295e19f 100644 --- a/drivers/spmi/spmi-pmic-arb.c +++ b/drivers/spmi/spmi-pmic-arb.c @@ -489,6 +489,8 @@ static void cleanup_irq(struct spmi_pmic_arb *pmic_arb, u16 apid, int id) u8 per = ppid & 0xFF; u8 irq_mask = BIT(id); + dev_err_ratelimited(&pmic_arb->spmic->dev, "%s apid=%d sid=0x%x per=0x%x irq=%d\n", + __func__, apid, sid, per, id); writel_relaxed(irq_mask, pmic_arb->ver_ops->irq_clear(pmic_arb, apid)); if (pmic_arb_write_cmd(pmic_arb->spmic, SPMI_CMD_EXT_WRITEL, sid, From patchwork Fri Aug 20 04:57:57 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fenglin Wu X-Patchwork-Id: 12448415 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C878BC4338F for ; Fri, 20 Aug 2021 04:58:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A299E60FE7 for ; Fri, 20 Aug 2021 04:58:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233778AbhHTE7U (ORCPT ); Fri, 20 Aug 2021 00:59:20 -0400 Received: from alexa-out-sd-01.qualcomm.com ([199.106.114.38]:43399 "EHLO alexa-out-sd-01.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233395AbhHTE7R (ORCPT ); Fri, 20 Aug 2021 00:59:17 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1629435520; x=1660971520; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=Q9cKJpllo1DhhME1a3XXJiNfVwTF4UKgzs2i3F4Z3Zw=; b=QiQIWy5I9PySA2KhUKj07MpiedDcXRCP/kcabo+pdQNIHfcRnLZyAQkC 8ZHttV0ahnHFcdBvN1Wm7ljWKVQbv0xZ60bTpVB9tM/3jLkzi6mDTTFOm hes9n8BXEWU4dGNp6INV7rKTsgV0ISHaSs6VUYe4EOhVGIknpZWA5Xw2N E=; Received: from unknown (HELO ironmsg02-sd.qualcomm.com) ([10.53.140.142]) by alexa-out-sd-01.qualcomm.com with ESMTP; 19 Aug 2021 21:58:39 -0700 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg02-sd.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Aug 2021 21:58:39 -0700 Received: from nalasex01c.na.qualcomm.com (10.47.97.35) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.858.15; Thu, 19 Aug 2021 21:58:39 -0700 Received: from fenglinw-gv.qualcomm.com (10.80.80.8) by nalasex01c.na.qualcomm.com (10.47.97.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.858.15; Thu, 19 Aug 2021 21:58:37 -0700 From: Fenglin Wu To: , , CC: , , Subject: [PATCH V1 2/9] spmi: pmic-arb: do not ack and clear peripheral interrupts in cleanup_irq Date: Fri, 20 Aug 2021 12:57:57 +0800 Message-ID: <1629435488-10228-3-git-send-email-quic_fenglinw@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1629435488-10228-1-git-send-email-quic_fenglinw@quicinc.com> References: <1629435488-10228-1-git-send-email-quic_fenglinw@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanexm03h.na.qualcomm.com (10.85.0.50) To nalasex01c.na.qualcomm.com (10.47.97.35) Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org From: Subbaraman Narayanamurthy Currently, cleanup_irq() is invoked when a peripheral's interrupt fires and there is no mapping present in the interrupt domain of spmi interrupt controller. The cleanup_irq clears the arbiter bit, clears the pmic interrupt and disables it at the pmic in that order. The last disable in cleanup_irq races with request_irq() in that it stomps over the enable issued by request_irq. Fix this by not writing to the pmic in cleanup_irq. The latched bit will be left set in the pmic, which will not send us more interrupts even if the enable bit stays enabled. When a client wants to request an interrupt, use the activate callback on the irq_domain to clear latched bit. This ensures that the latched, if set due to the above changes in cleanup_irq or when the bootloader leaves it set, gets cleaned up, paving way for upcoming interrupts to trigger. With this, there is a possibility of unwanted triggering of interrupt right after the latched bit is cleared - the interrupt may be left enabled too. To avoid that, clear the enable first followed by clearing the latched bit in the activate callback. Signed-off-by: Subbaraman Narayanamurthy [collinsd@codeaurora.org: fix merge conflict] Signed-off-by: David Collins Signed-off-by: Fenglin Wu --- drivers/spmi/spmi-pmic-arb.c | 15 +++++---------- 1 file changed, 5 insertions(+), 10 deletions(-) diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c index 295e19f..4d7ad004 100644 --- a/drivers/spmi/spmi-pmic-arb.c +++ b/drivers/spmi/spmi-pmic-arb.c @@ -492,16 +492,6 @@ static void cleanup_irq(struct spmi_pmic_arb *pmic_arb, u16 apid, int id) dev_err_ratelimited(&pmic_arb->spmic->dev, "%s apid=%d sid=0x%x per=0x%x irq=%d\n", __func__, apid, sid, per, id); writel_relaxed(irq_mask, pmic_arb->ver_ops->irq_clear(pmic_arb, apid)); - - if (pmic_arb_write_cmd(pmic_arb->spmic, SPMI_CMD_EXT_WRITEL, sid, - (per << 8) + QPNPINT_REG_LATCHED_CLR, &irq_mask, 1)) - dev_err_ratelimited(&pmic_arb->spmic->dev, "failed to ack irq_mask = 0x%x for ppid = %x\n", - irq_mask, ppid); - - if (pmic_arb_write_cmd(pmic_arb->spmic, SPMI_CMD_EXT_WRITEL, sid, - (per << 8) + QPNPINT_REG_EN_CLR, &irq_mask, 1)) - dev_err_ratelimited(&pmic_arb->spmic->dev, "failed to ack irq_mask = 0x%x for ppid = %x\n", - irq_mask, ppid); } static void periph_interrupt(struct spmi_pmic_arb *pmic_arb, u16 apid) @@ -667,6 +657,7 @@ static int qpnpint_irq_domain_activate(struct irq_domain *domain, u16 apid = hwirq_to_apid(d->hwirq); u16 sid = hwirq_to_sid(d->hwirq); u16 irq = hwirq_to_irq(d->hwirq); + u8 buf; if (pmic_arb->apid_data[apid].irq_ee != pmic_arb->ee) { dev_err(&pmic_arb->spmic->dev, "failed to xlate sid = %#x, periph = %#x, irq = %u: ee=%u but owner=%u\n", @@ -675,6 +666,10 @@ static int qpnpint_irq_domain_activate(struct irq_domain *domain, return -ENODEV; } + buf = BIT(irq); + qpnpint_spmi_write(d, QPNPINT_REG_EN_CLR, &buf, 1); + qpnpint_spmi_write(d, QPNPINT_REG_LATCHED_CLR, &buf, 1); + return 0; } From patchwork Fri Aug 20 04:57:58 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fenglin Wu X-Patchwork-Id: 12448417 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E15E0C432BE for ; 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19 Aug 2021 21:58:42 -0700 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg02-sd.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Aug 2021 21:58:41 -0700 Received: from nalasex01c.na.qualcomm.com (10.47.97.35) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.858.15; Thu, 19 Aug 2021 21:58:41 -0700 Received: from fenglinw-gv.qualcomm.com (10.80.80.8) by nalasex01c.na.qualcomm.com (10.47.97.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.858.15; Thu, 19 Aug 2021 21:58:39 -0700 From: Fenglin Wu To: , , CC: , , Subject: [PATCH V1 3/9] spmi: pmic-arb: check apid against limits before calling irq handler Date: Fri, 20 Aug 2021 12:57:58 +0800 Message-ID: <1629435488-10228-4-git-send-email-quic_fenglinw@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1629435488-10228-1-git-send-email-quic_fenglinw@quicinc.com> References: <1629435488-10228-1-git-send-email-quic_fenglinw@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanexm03h.na.qualcomm.com (10.85.0.50) To nalasex01c.na.qualcomm.com (10.47.97.35) Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org From: David Collins Check that the apid for an SPMI interrupt falls between the min_apid and max_apid that can be handled by the APPS processor before invoking the per-apid interrupt handler: periph_interrupt(). This avoids an access violation in rare cases where the status bit is set for an interrupt that is not owned by the APPS processor. Signed-off-by: David Collins Signed-off-by: Fenglin Wu --- drivers/spmi/spmi-pmic-arb.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c index 4d7ad004..c4adc06 100644 --- a/drivers/spmi/spmi-pmic-arb.c +++ b/drivers/spmi/spmi-pmic-arb.c @@ -535,6 +535,12 @@ static void pmic_arb_chained_irq(struct irq_desc *desc) id = ffs(status) - 1; status &= ~BIT(id); apid = id + i * 32; + if (apid < pmic_arb->min_apid + || apid > pmic_arb->max_apid) { + WARN_ONCE(true, "spurious spmi irq received for apid=%d\n", + apid); + continue; + } enable = readl_relaxed( ver_ops->acc_enable(pmic_arb, apid)); if (enable & SPMI_PIC_ACC_ENABLE_BIT) From patchwork Fri Aug 20 04:57:59 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fenglin Wu X-Patchwork-Id: 12448419 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 630A7C4338F for ; Fri, 20 Aug 2021 04:58:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4683360FE7 for ; Fri, 20 Aug 2021 04:58:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238160AbhHTE7Y (ORCPT ); Fri, 20 Aug 2021 00:59:24 -0400 Received: from alexa-out-sd-01.qualcomm.com ([199.106.114.38]:43416 "EHLO alexa-out-sd-01.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235904AbhHTE7V (ORCPT ); Fri, 20 Aug 2021 00:59:21 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1629435524; x=1660971524; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=Ovw9WoZ0YrotwnPUK4JwpO7mOXRMGw27QHpFWOln15I=; b=uomQ06ag3rVfKIfhxVcZ21Ve/xdxVo9dBowUy5d+gbDruDZLB33Et/oJ crXh4JJBA3mZbV+Bv8MQb5itMFj/ByWEWsCXtcRkOOE77BFQpGnUfS0JJ 9aVHeMtfUBwUWYXuGRyXCzZmaszpo0zzzginc7cJfkuZSghDxFBnsrpYh s=; Received: from unknown (HELO ironmsg03-sd.qualcomm.com) ([10.53.140.143]) by alexa-out-sd-01.qualcomm.com with ESMTP; 19 Aug 2021 21:58:44 -0700 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg03-sd.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Aug 2021 21:58:44 -0700 Received: from nalasex01c.na.qualcomm.com (10.47.97.35) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.858.15; Thu, 19 Aug 2021 21:58:44 -0700 Received: from fenglinw-gv.qualcomm.com (10.80.80.8) by nalasex01c.na.qualcomm.com (10.47.97.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.858.15; Thu, 19 Aug 2021 21:58:41 -0700 From: Fenglin Wu To: , , CC: , , , Ashay Jaiswal Subject: [PATCH V1 4/9] spmi: pmic-arb: add support to dispatch interrupt based on IRQ status Date: Fri, 20 Aug 2021 12:57:59 +0800 Message-ID: <1629435488-10228-5-git-send-email-quic_fenglinw@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1629435488-10228-1-git-send-email-quic_fenglinw@quicinc.com> References: <1629435488-10228-1-git-send-email-quic_fenglinw@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanexm03h.na.qualcomm.com (10.85.0.50) To nalasex01c.na.qualcomm.com (10.47.97.35) Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org From: Ashay Jaiswal Current implementation of SPMI arbiter dispatches interrupt based on the Arbiter's accumulator status, in some cases the accumulator status may remain zero and the interrupt remains un-handled. Add logic to dispatch interrupts based Arbiter's IRQ status if the accumulator status is zero. Signed-off-by: Ashay Jaiswal Signed-off-by: David Collins Signed-off-by: Fenglin Wu --- drivers/spmi/spmi-pmic-arb.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c index c4adc06..59c445b 100644 --- a/drivers/spmi/spmi-pmic-arb.c +++ b/drivers/spmi/spmi-pmic-arb.c @@ -525,12 +525,18 @@ static void pmic_arb_chained_irq(struct irq_desc *desc) u8 ee = pmic_arb->ee; u32 status, enable; int i, id, apid; + /* status based dispatch */ + bool acc_valid = false; + u32 irq_status = 0; chained_irq_enter(chip, desc); for (i = first; i <= last; ++i) { status = readl_relaxed( ver_ops->owner_acc_status(pmic_arb, ee, i)); + if (status) + acc_valid = true; + while (status) { id = ffs(status) - 1; status &= ~BIT(id); @@ -548,6 +554,28 @@ static void pmic_arb_chained_irq(struct irq_desc *desc) } } + /* ACC_STATUS is empty but IRQ fired check IRQ_STATUS */ + if (!acc_valid) { + for (i = pmic_arb->min_apid; i <= pmic_arb->max_apid; i++) { + /* skip if APPS is not irq owner */ + if (pmic_arb->apid_data[i].irq_ee != pmic_arb->ee) + continue; + + irq_status = readl_relaxed( + ver_ops->irq_status(pmic_arb, i)); + if (irq_status) { + enable = readl_relaxed( + ver_ops->acc_enable(pmic_arb, i)); + if (enable & SPMI_PIC_ACC_ENABLE_BIT) { + dev_dbg(&pmic_arb->spmic->dev, + "Dispatching IRQ for apid=%d status=%x\n", + i, irq_status); + periph_interrupt(pmic_arb, i); + } + } + } + } + chained_irq_exit(chip, desc); } From patchwork Fri Aug 20 04:58:00 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fenglin Wu X-Patchwork-Id: 12448421 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DB682C432BE for ; Fri, 20 Aug 2021 04:58:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C61F060FE7 for ; Fri, 20 Aug 2021 04:58:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238369AbhHTE72 (ORCPT ); Fri, 20 Aug 2021 00:59:28 -0400 Received: from alexa-out-sd-01.qualcomm.com ([199.106.114.38]:43416 "EHLO alexa-out-sd-01.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238197AbhHTE7Y (ORCPT ); Fri, 20 Aug 2021 00:59:24 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1629435527; x=1660971527; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=n/S+LJRQQv3dedKcJxXMUgsmPE3AiNWUiTT/M7t323w=; b=a/W9O1jDUmM8+XCEdfntSmcth2CpvymDIA1zo0RjydaapkYTI0EjNKPU MPUCseix5h6t9YfKSHkqo7Gk+e/aalYWbmKvHTQFl1m/pTkETPV7ZfVTh K5HmWu3SoKXrosI6C0riExxGYrILLdjwAyPUnMyhELfATMKjJFtLoTmpc M=; Received: from unknown (HELO ironmsg03-sd.qualcomm.com) ([10.53.140.143]) by alexa-out-sd-01.qualcomm.com with ESMTP; 19 Aug 2021 21:58:46 -0700 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg03-sd.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Aug 2021 21:58:46 -0700 Received: from nalasex01c.na.qualcomm.com (10.47.97.35) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.858.15; Thu, 19 Aug 2021 21:58:46 -0700 Received: from fenglinw-gv.qualcomm.com (10.80.80.8) by nalasex01c.na.qualcomm.com (10.47.97.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.858.15; Thu, 19 Aug 2021 21:58:44 -0700 From: Fenglin Wu To: , , CC: , , Subject: [PATCH V1 5/9] spmi: pmic-arb: correct duplicate APID to PPID mapping logic Date: Fri, 20 Aug 2021 12:58:00 +0800 Message-ID: <1629435488-10228-6-git-send-email-quic_fenglinw@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1629435488-10228-1-git-send-email-quic_fenglinw@quicinc.com> References: <1629435488-10228-1-git-send-email-quic_fenglinw@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanexm03h.na.qualcomm.com (10.85.0.50) To nalasex01c.na.qualcomm.com (10.47.97.35) Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org From: David Collins 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 Signed-off-by: Fenglin Wu --- 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) { /* * 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; From patchwork Fri Aug 20 04:58:01 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fenglin Wu X-Patchwork-Id: 12448423 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B54F5C4338F for ; Fri, 20 Aug 2021 04:58:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9848D61029 for ; Fri, 20 Aug 2021 04:58:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238492AbhHTE7f (ORCPT ); Fri, 20 Aug 2021 00:59:35 -0400 Received: from alexa-out.qualcomm.com ([129.46.98.28]:41614 "EHLO alexa-out.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237795AbhHTE70 (ORCPT ); Fri, 20 Aug 2021 00:59:26 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1629435529; x=1660971529; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=xMDIxzoEbq0aPJ2fBtVchMgpbiMzY/BXvnlgZEBdY1I=; b=wcFz/2TzjpdCrEPcIvN5Z/Cic+DXi95d87+ST1Q6UnWSfXkbO5ndM3If XE7zLHn6AZkCwg9bmUewtr22QFb77qreMFd/hFA7pKYFrxGbnDBQ0DALf zfNM1eR85De93+VKpvzDVMHeV/v6M0SsV7JOKWzsjba8cva/p/q4cvLEr U=; Received: from ironmsg07-lv.qualcomm.com ([10.47.202.151]) by alexa-out.qualcomm.com with ESMTP; 19 Aug 2021 21:58:49 -0700 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg07-lv.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Aug 2021 21:58:48 -0700 Received: from nalasex01c.na.qualcomm.com (10.47.97.35) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.858.15; Thu, 19 Aug 2021 21:58:48 -0700 Received: from fenglinw-gv.qualcomm.com (10.80.80.8) by nalasex01c.na.qualcomm.com (10.47.97.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.858.15; Thu, 19 Aug 2021 21:58:46 -0700 From: Fenglin Wu To: , , CC: , , Subject: [PATCH V1 6/9] spmi: pmic-arb: block access for invalid PMIC arbiter v5 SPMI writes Date: Fri, 20 Aug 2021 12:58:01 +0800 Message-ID: <1629435488-10228-7-git-send-email-quic_fenglinw@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1629435488-10228-1-git-send-email-quic_fenglinw@quicinc.com> References: <1629435488-10228-1-git-send-email-quic_fenglinw@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanexm03h.na.qualcomm.com (10.85.0.50) To nalasex01c.na.qualcomm.com (10.47.97.35) Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org From: David Collins The system crashes due to an access permission violation when writing to a PMIC peripheral which is not owned by the current ee. Add a check for PMIC arbiter version 5 for such invalid write requests and return an error instead of crashing the system. Signed-off-by: David Collins --- drivers/spmi/spmi-pmic-arb.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c index f1b72d8..9239830 100644 --- a/drivers/spmi/spmi-pmic-arb.c +++ b/drivers/spmi/spmi-pmic-arb.c @@ -1020,6 +1020,11 @@ static int pmic_arb_offset_v5(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr, offset = 0x10000 * pmic_arb->ee + 0x80 * apid; break; case PMIC_ARB_CHANNEL_RW: + if (pmic_arb->apid_data[apid].write_ee != pmic_arb->ee) { + dev_err(&pmic_arb->spmic->dev, "disallowed SPMI write to sid=%u, addr=0x%04X\n", + sid, addr); + return -EPERM; + } offset = 0x10000 * apid; break; } From patchwork Fri Aug 20 04:58:02 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fenglin Wu X-Patchwork-Id: 12448425 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 98B55C4320A for ; Fri, 20 Aug 2021 04:59:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7CB8A61004 for ; Fri, 20 Aug 2021 04:59:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238199AbhHTE7h (ORCPT ); Fri, 20 Aug 2021 00:59:37 -0400 Received: from alexa-out-sd-01.qualcomm.com ([199.106.114.38]:43416 "EHLO alexa-out-sd-01.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237899AbhHTE72 (ORCPT ); Fri, 20 Aug 2021 00:59:28 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1629435531; x=1660971531; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=IWJ0A04ElihV+hsa8p2cu+aTFCm2Gzo/yxHhJJUCiV0=; b=LFqOQRLKXZdgDAlofSmiQj3WDUDAlnLvMKl2l6F80YX4imcSlFj7OUNf v7fPTz3TWMyS66mYJhitSRtNfhB1oR2kh9A/2chfTowdkTJMmVSm5jtvi XNwOW4ErNmkRhKSXsVfhZOhUBq6Aew255eIWg5CbF1HJUxLx2U2WN3Lui M=; Received: from unknown (HELO ironmsg05-sd.qualcomm.com) ([10.53.140.145]) by alexa-out-sd-01.qualcomm.com with ESMTP; 19 Aug 2021 21:58:51 -0700 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg05-sd.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Aug 2021 21:58:51 -0700 Received: from nalasex01c.na.qualcomm.com (10.47.97.35) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.858.15; Thu, 19 Aug 2021 21:58:51 -0700 Received: from fenglinw-gv.qualcomm.com (10.80.80.8) by nalasex01c.na.qualcomm.com (10.47.97.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.858.15; Thu, 19 Aug 2021 21:58:48 -0700 From: Fenglin Wu To: , , CC: , , , Yimin Peng Subject: [PATCH V1 7/9] spmi: pmic-arb: support updating interrupt type flags Date: Fri, 20 Aug 2021 12:58:02 +0800 Message-ID: <1629435488-10228-8-git-send-email-quic_fenglinw@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1629435488-10228-1-git-send-email-quic_fenglinw@quicinc.com> References: <1629435488-10228-1-git-send-email-quic_fenglinw@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanexm03h.na.qualcomm.com (10.85.0.50) To nalasex01c.na.qualcomm.com (10.47.97.35) Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org From: Yimin Peng Have the qpnpint_irq_set_type function clear unwanted high/low trigger bits when updating the interrupt flags. Signed-off-by: Yimin Peng Signed-off-by: Subbaraman Narayanamurthy Signed-off-by: Fenglin Wu --- drivers/spmi/spmi-pmic-arb.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c index 9239830..988204c 100644 --- a/drivers/spmi/spmi-pmic-arb.c +++ b/drivers/spmi/spmi-pmic-arb.c @@ -636,8 +636,12 @@ static int qpnpint_irq_set_type(struct irq_data *d, unsigned int flow_type) type.type |= BIT(irq); if (flow_type & IRQF_TRIGGER_RISING) type.polarity_high |= BIT(irq); + else + type.polarity_high &= ~BIT(irq); if (flow_type & IRQF_TRIGGER_FALLING) type.polarity_low |= BIT(irq); + else + type.polarity_low &= ~BIT(irq); flow_handler = handle_edge_irq; } else { @@ -646,10 +650,13 @@ static int qpnpint_irq_set_type(struct irq_data *d, unsigned int flow_type) return -EINVAL; type.type &= ~BIT(irq); /* level trig */ - if (flow_type & IRQF_TRIGGER_HIGH) + if (flow_type & IRQF_TRIGGER_HIGH) { type.polarity_high |= BIT(irq); - else + type.polarity_low &= ~BIT(irq); + } else { type.polarity_low |= BIT(irq); + type.polarity_high &= ~BIT(irq); + } flow_handler = handle_level_irq; } From patchwork Fri Aug 20 04:58:03 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fenglin Wu X-Patchwork-Id: 12448427 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B540AC4338F for ; Fri, 20 Aug 2021 04:59:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9E6AF61029 for ; Fri, 20 Aug 2021 04:59:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238542AbhHTE7k (ORCPT ); Fri, 20 Aug 2021 00:59:40 -0400 Received: from alexa-out-sd-01.qualcomm.com ([199.106.114.38]:43454 "EHLO alexa-out-sd-01.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233505AbhHTE7b (ORCPT ); Fri, 20 Aug 2021 00:59:31 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1629435534; x=1660971534; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=lXmE2bDOF4EwRGm8KjpM+LKJRtL4f/Jq6qA4zPZMTZY=; b=u5+5QaT+r952lCHxeR5viJ4iX3sZqgW4oMLcbj0rkUWQLjyc52+00iZE jS1pbJMRDj0pEIbpnGK3eV0dvV2mDWnQpfvE04bqLDDm3HdFHxx+RDM8M H6aTh+bjoqey39MdtOkSpVyGO66IKtk3dfUXNM7FU238ApN4k/+VZYGfo M=; Received: from unknown (HELO ironmsg04-sd.qualcomm.com) ([10.53.140.144]) by alexa-out-sd-01.qualcomm.com with ESMTP; 19 Aug 2021 21:58:54 -0700 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg04-sd.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Aug 2021 21:58:53 -0700 Received: from nalasex01c.na.qualcomm.com (10.47.97.35) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.858.15; Thu, 19 Aug 2021 21:58:53 -0700 Received: from fenglinw-gv.qualcomm.com (10.80.80.8) by nalasex01c.na.qualcomm.com (10.47.97.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.858.15; Thu, 19 Aug 2021 21:58:51 -0700 From: Fenglin Wu To: , , CC: , , Subject: [PATCH V1 8/9] spmi: pmic-arb: make interrupt support optional Date: Fri, 20 Aug 2021 12:58:03 +0800 Message-ID: <1629435488-10228-9-git-send-email-quic_fenglinw@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1629435488-10228-1-git-send-email-quic_fenglinw@quicinc.com> References: <1629435488-10228-1-git-send-email-quic_fenglinw@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanexm03h.na.qualcomm.com (10.85.0.50) To nalasex01c.na.qualcomm.com (10.47.97.35) Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org From: David Collins Make the support of PMIC peripheral interrupts optional for spmi-pmic-arb devices. This is useful in situations where SPMI address mapping is required without the need for IRQ support. Signed-off-by: David Collins Signed-off-by: Fenglin Wu --- drivers/spmi/spmi-pmic-arb.c | 45 +++++++++++++++++++++++++++----------------- 1 file changed, 28 insertions(+), 17 deletions(-) diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c index 988204c..55fa981 100644 --- a/drivers/spmi/spmi-pmic-arb.c +++ b/drivers/spmi/spmi-pmic-arb.c @@ -1280,10 +1280,12 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev) goto err_put_ctrl; } - pmic_arb->irq = platform_get_irq_byname(pdev, "periph_irq"); - if (pmic_arb->irq < 0) { - err = pmic_arb->irq; - goto err_put_ctrl; + if (of_find_property(pdev->dev.of_node, "interrupt-names", NULL)) { + pmic_arb->irq = platform_get_irq_byname(pdev, "periph_irq"); + if (pmic_arb->irq < 0) { + err = pmic_arb->irq; + goto err_put_ctrl; + } } err = of_property_read_u32(pdev->dev.of_node, "qcom,channel", &channel); @@ -1343,17 +1345,22 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev) } } - dev_dbg(&pdev->dev, "adding irq domain\n"); - pmic_arb->domain = irq_domain_add_tree(pdev->dev.of_node, - &pmic_arb_irq_domain_ops, pmic_arb); - if (!pmic_arb->domain) { - dev_err(&pdev->dev, "unable to create irq_domain\n"); - err = -ENOMEM; - goto err_put_ctrl; + if (pmic_arb->irq > 0) { + dev_dbg(&pdev->dev, "adding irq domain\n"); + pmic_arb->domain = irq_domain_add_tree(pdev->dev.of_node, + &pmic_arb_irq_domain_ops, pmic_arb); + if (!pmic_arb->domain) { + dev_err(&pdev->dev, "unable to create irq_domain\n"); + err = -ENOMEM; + goto err_put_ctrl; + } + + irq_set_chained_handler_and_data(pmic_arb->irq, + pmic_arb_chained_irq, pmic_arb); + } else { + dev_dbg(&pdev->dev, "not supporting PMIC interrupts\n"); } - irq_set_chained_handler_and_data(pmic_arb->irq, pmic_arb_chained_irq, - pmic_arb); err = spmi_controller_add(ctrl); if (err) goto err_domain_remove; @@ -1361,8 +1368,10 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev) return 0; err_domain_remove: - irq_set_chained_handler_and_data(pmic_arb->irq, NULL, NULL); - irq_domain_remove(pmic_arb->domain); + if (pmic_arb->irq > 0) { + irq_set_chained_handler_and_data(pmic_arb->irq, NULL, NULL); + irq_domain_remove(pmic_arb->domain); + } err_put_ctrl: spmi_controller_put(ctrl); return err; @@ -1373,8 +1382,10 @@ static int spmi_pmic_arb_remove(struct platform_device *pdev) struct spmi_controller *ctrl = platform_get_drvdata(pdev); struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl); spmi_controller_remove(ctrl); - irq_set_chained_handler_and_data(pmic_arb->irq, NULL, NULL); - irq_domain_remove(pmic_arb->domain); + if (pmic_arb->irq > 0) { + irq_set_chained_handler_and_data(pmic_arb->irq, NULL, NULL); + irq_domain_remove(pmic_arb->domain); + } spmi_controller_put(ctrl); return 0; } From patchwork Fri Aug 20 04:58:04 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fenglin Wu X-Patchwork-Id: 12448463 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2F5C0C4338F for ; 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19 Aug 2021 21:58:56 -0700 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg05-sd.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Aug 2021 21:58:55 -0700 Received: from nalasex01c.na.qualcomm.com (10.47.97.35) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.858.15; Thu, 19 Aug 2021 21:58:55 -0700 Received: from fenglinw-gv.qualcomm.com (10.80.80.8) by nalasex01c.na.qualcomm.com (10.47.97.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.858.15; Thu, 19 Aug 2021 21:58:53 -0700 From: Fenglin Wu To: , , CC: , , Subject: [PATCH V1 9/9] spmi: pmic-arb: increase SPMI transaction timeout delay Date: Fri, 20 Aug 2021 12:58:04 +0800 Message-ID: <1629435488-10228-10-git-send-email-quic_fenglinw@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1629435488-10228-1-git-send-email-quic_fenglinw@quicinc.com> References: <1629435488-10228-1-git-send-email-quic_fenglinw@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanexm03h.na.qualcomm.com (10.85.0.50) To nalasex01c.na.qualcomm.com (10.47.97.35) Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org From: David Collins Increase the SPMI transaction timeout delay from 100 us to 1000 us in order to account for the slower execution time found on some simulator targets. Signed-off-by: David Collins Signed-off-by: Fenglin Wu --- drivers/spmi/spmi-pmic-arb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c index 55fa981..08c2566 100644 --- a/drivers/spmi/spmi-pmic-arb.c +++ b/drivers/spmi/spmi-pmic-arb.c @@ -91,7 +91,7 @@ enum pmic_arb_channel { /* Maximum number of support PMIC peripherals */ #define PMIC_ARB_MAX_PERIPHS 512 -#define PMIC_ARB_TIMEOUT_US 100 +#define PMIC_ARB_TIMEOUT_US 1000 #define PMIC_ARB_MAX_TRANS_BYTES (8) #define PMIC_ARB_APID_MASK 0xFF