From patchwork Wed Sep 1 08:18:02 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fenglin Wu X-Patchwork-Id: 12468605 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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 D3965C432BE for ; Wed, 1 Sep 2021 08:19:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B2B3D6103A for ; Wed, 1 Sep 2021 08:19:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243098AbhIAIUN (ORCPT ); Wed, 1 Sep 2021 04:20:13 -0400 Received: from alexa-out.qualcomm.com ([129.46.98.28]:37460 "EHLO alexa-out.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229934AbhIAIUJ (ORCPT ); Wed, 1 Sep 2021 04:20:09 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1630484354; x=1662020354; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=tAnC1etYTMo3V+Modhj6QJR1D5QTZ5y6YOqeoMVCGsg=; b=jS5w6/ElxpWCozfSE1WX7S3HGPRpRY/HIRs2sDPCxNrDwqzowoZE+HBi G1bxj57rmPRG5DYpQkLI0FctxV1zStgomf5hgSRNKZBY1Xa7q7b68yk34 Bu8QH9m18DOz2XqcQ0h8mCa9SxTSWP9PJxMhFKf58fnFgTCL/mfE6vzea 8=; Received: from ironmsg-lv-alpha.qualcomm.com ([10.47.202.13]) by alexa-out.qualcomm.com with ESMTP; 01 Sep 2021 01:19:13 -0700 X-QCInternal: smtphost Received: from nalasex01c.na.qualcomm.com ([10.47.97.35]) by ironmsg-lv-alpha.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Sep 2021 01:19:12 -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_GCM_SHA384) id 15.2.922.7; Wed, 1 Sep 2021 01:19:10 -0700 From: Fenglin Wu To: , , CC: , , , Abhijeet Dharmapurikar Subject: [RESEND PATCH v1 1/9] spmi: pmic-arb: add a print in cleanup_irq Date: Wed, 1 Sep 2021 16:18:02 +0800 Message-ID: <1630484290-28190-2-git-send-email-quic_fenglinw@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1630484290-28190-1-git-send-email-quic_fenglinw@quicinc.com> References: <1630484290-28190-1-git-send-email-quic_fenglinw@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) 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 Wed Sep 1 08:18:03 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fenglin Wu X-Patchwork-Id: 12468607 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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 19BE2C4320A for ; Wed, 1 Sep 2021 08:19:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 026016103A for ; Wed, 1 Sep 2021 08:19:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243103AbhIAIUO (ORCPT ); Wed, 1 Sep 2021 04:20:14 -0400 Received: from alexa-out.qualcomm.com ([129.46.98.28]:17574 "EHLO alexa-out.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243060AbhIAIUL (ORCPT ); Wed, 1 Sep 2021 04:20:11 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1630484356; x=1662020356; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=UFm4lH1VdjgBOuPIWDR8+t74A8qgSRQhFYsN706Pxow=; b=KTWiVFXfdCZZQX5B8YDprZjabWANu4texfsKTJj7+ZmLkIEpHrcwJw3C DH/VDyU5gBnqUZGsi9OdP4fJzEwR6+rN5x/d1rc6lbuUnNgeZ65h3zBo/ 91EYmVgk1i9Q07AIHrAp4c0twQVMwgCUYkPbhyrELE1mckSg0ITMusgXt A=; Received: from ironmsg-lv-alpha.qualcomm.com ([10.47.202.13]) by alexa-out.qualcomm.com with ESMTP; 01 Sep 2021 01:19:15 -0700 X-QCInternal: smtphost Received: from nalasex01c.na.qualcomm.com ([10.47.97.35]) by ironmsg-lv-alpha.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Sep 2021 01:19:15 -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_GCM_SHA384) id 15.2.922.7; Wed, 1 Sep 2021 01:19:13 -0700 From: Fenglin Wu To: , , CC: , , Subject: [RESEND PATCH v1 2/9] spmi: pmic-arb: do not ack and clear peripheral interrupts in cleanup_irq Date: Wed, 1 Sep 2021 16:18:03 +0800 Message-ID: <1630484290-28190-3-git-send-email-quic_fenglinw@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1630484290-28190-1-git-send-email-quic_fenglinw@quicinc.com> References: <1630484290-28190-1-git-send-email-quic_fenglinw@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) 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 Wed Sep 1 08:18:04 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fenglin Wu X-Patchwork-Id: 12468609 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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 60B64C432BE for ; Wed, 1 Sep 2021 08:19:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4C8436103A for ; Wed, 1 Sep 2021 08:19:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243105AbhIAIUP (ORCPT ); Wed, 1 Sep 2021 04:20:15 -0400 Received: from alexa-out.qualcomm.com ([129.46.98.28]:17574 "EHLO alexa-out.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243101AbhIAIUO (ORCPT ); Wed, 1 Sep 2021 04:20:14 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1630484358; x=1662020358; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=XwhljndGA6Jv2ltbwzx88Ni9Naz4wDVBE/5XzjZwT4c=; b=HMaV15ap69dC5OIJuqRLRRNbjKYgdWETMO0gzIf/elyHYqe9O+lc53QP AjSgmhWgPYLtYJafXEQZHsyj1uqqiarzxStVz78qhxL+VvtzAg2c95T7A 57yKnZqNZAc/tY6HsNv3zefPNUDG4X0rGZVjE0XyZw8OpTwTG+d8puSSe o=; Received: from ironmsg-lv-alpha.qualcomm.com ([10.47.202.13]) by alexa-out.qualcomm.com with ESMTP; 01 Sep 2021 01:19:18 -0700 X-QCInternal: smtphost Received: from nalasex01c.na.qualcomm.com ([10.47.97.35]) by ironmsg-lv-alpha.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Sep 2021 01:19:17 -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_GCM_SHA384) id 15.2.922.7; Wed, 1 Sep 2021 01:19:15 -0700 From: Fenglin Wu To: , , CC: , , Subject: [RESEND PATCH v1 3/9] spmi: pmic-arb: check apid against limits before calling irq handler Date: Wed, 1 Sep 2021 16:18:04 +0800 Message-ID: <1630484290-28190-4-git-send-email-quic_fenglinw@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1630484290-28190-1-git-send-email-quic_fenglinw@quicinc.com> References: <1630484290-28190-1-git-send-email-quic_fenglinw@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) 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 Wed Sep 1 08:18:05 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fenglin Wu X-Patchwork-Id: 12468611 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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 40DE1C4320A for ; Wed, 1 Sep 2021 08:19:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 284D161074 for ; Wed, 1 Sep 2021 08:19:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243106AbhIAIUS (ORCPT ); Wed, 1 Sep 2021 04:20:18 -0400 Received: from alexa-out.qualcomm.com ([129.46.98.28]:17574 "EHLO alexa-out.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243113AbhIAIUR (ORCPT ); Wed, 1 Sep 2021 04:20:17 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1630484361; x=1662020361; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=p82VOXmbjdo886MdyqYqr8kAUG2iDKw6pyvPODt1jVg=; b=yMoy5hICfzs1p9h9k7swZFT/enG0EOu6xGhNHjkPb//HWsL2CXNtisVF yFmjpd9Tl/huaEotnCaRelJjxffHDJevvCmenPrQ2wCEX8XXMFf43ulLL olOLoPA8FtNlj3XxL8LOEiyG55j40lIaPYrk47Z9sdh4mIV7rBkP4OSI8 c=; Received: from ironmsg09-lv.qualcomm.com ([10.47.202.153]) by alexa-out.qualcomm.com with ESMTP; 01 Sep 2021 01:19:21 -0700 X-QCInternal: smtphost Received: from nalasex01c.na.qualcomm.com ([10.47.97.35]) by ironmsg09-lv.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Sep 2021 01:19:20 -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_GCM_SHA384) id 15.2.922.7; Wed, 1 Sep 2021 01:19:17 -0700 From: Fenglin Wu To: , , CC: , , , Ashay Jaiswal Subject: [RESEND PATCH v1 4/9] spmi: pmic-arb: add support to dispatch interrupt based on IRQ status Date: Wed, 1 Sep 2021 16:18:05 +0800 Message-ID: <1630484290-28190-5-git-send-email-quic_fenglinw@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1630484290-28190-1-git-send-email-quic_fenglinw@quicinc.com> References: <1630484290-28190-1-git-send-email-quic_fenglinw@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) 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 Wed Sep 1 08:18:06 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fenglin Wu X-Patchwork-Id: 12468613 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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 84C83C4320A for ; Wed, 1 Sep 2021 08:19:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6D6FB60698 for ; Wed, 1 Sep 2021 08:19:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243143AbhIAIU0 (ORCPT ); Wed, 1 Sep 2021 04:20:26 -0400 Received: from alexa-out.qualcomm.com ([129.46.98.28]:17574 "EHLO alexa-out.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243123AbhIAIUT (ORCPT ); Wed, 1 Sep 2021 04:20:19 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1630484363; x=1662020363; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=kUnSUC/8VBwiIC+PWxEBDggi0X6pA5u756A7g/HYUYs=; b=uJSoz7N4X9TqHpWRCs7JzlRZw3u40bkTtJHuLnIh/A1NWBbsiOFM+fwu KaKby9zg3/tJDmyuslvhf6RK49MP6Swu4kHOmpUFmvwUm22OhdRMMo7S+ wWU7tw+qQRSBnTZBm7UR1tE5MEqKC3v1r3KrF2NztGU1Fls4J04O8hLDs M=; Received: from ironmsg-lv-alpha.qualcomm.com ([10.47.202.13]) by alexa-out.qualcomm.com with ESMTP; 01 Sep 2021 01:19:23 -0700 X-QCInternal: smtphost Received: from nalasex01c.na.qualcomm.com ([10.47.97.35]) by ironmsg-lv-alpha.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Sep 2021 01:19:22 -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_GCM_SHA384) id 15.2.922.7; Wed, 1 Sep 2021 01:19:20 -0700 From: Fenglin Wu To: , , CC: , , Subject: [RESEND PATCH v1 5/9] spmi: pmic-arb: correct duplicate APID to PPID mapping logic Date: Wed, 1 Sep 2021 16:18:06 +0800 Message-ID: <1630484290-28190-6-git-send-email-quic_fenglinw@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1630484290-28190-1-git-send-email-quic_fenglinw@quicinc.com> References: <1630484290-28190-1-git-send-email-quic_fenglinw@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) 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 Wed Sep 1 08:18:07 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fenglin Wu X-Patchwork-Id: 12468615 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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 64C86C43214 for ; Wed, 1 Sep 2021 08:19:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 357D4610CD for ; Wed, 1 Sep 2021 08:19:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243101AbhIAIU1 (ORCPT ); Wed, 1 Sep 2021 04:20:27 -0400 Received: from alexa-out.qualcomm.com ([129.46.98.28]:35787 "EHLO alexa-out.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243129AbhIAIUW (ORCPT ); Wed, 1 Sep 2021 04:20:22 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1630484366; x=1662020366; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=OtSq+ort8B4nCsCM1w2vsb0LnoZeXWiSQQkCUckld2I=; b=ZkkcJdhgi5GsnCKPtyJpsznxhoW6peAMwLJrcHK+OTcF3B/qVUKVdLvi ncHNjtXGnJPd9Nd+1u1ovkVDGKmUkftsRLOOtLWeKCFcxDFM9dfn1eZEC Ts3rd/KzV0hyzAq2nuk5odqLaVe2aORMdAc0ajpFXAXKwdNCuFLs1OvEA U=; Received: from ironmsg08-lv.qualcomm.com ([10.47.202.152]) by alexa-out.qualcomm.com with ESMTP; 01 Sep 2021 01:19:25 -0700 X-QCInternal: smtphost Received: from nalasex01c.na.qualcomm.com ([10.47.97.35]) by ironmsg08-lv.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Sep 2021 01:19:25 -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_GCM_SHA384) id 15.2.922.7; Wed, 1 Sep 2021 01:19:22 -0700 From: Fenglin Wu To: , , CC: , , Subject: [RESEND PATCH v1 6/9] spmi: pmic-arb: block access for invalid PMIC arbiter v5 SPMI writes Date: Wed, 1 Sep 2021 16:18:07 +0800 Message-ID: <1630484290-28190-7-git-send-email-quic_fenglinw@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1630484290-28190-1-git-send-email-quic_fenglinw@quicinc.com> References: <1630484290-28190-1-git-send-email-quic_fenglinw@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) 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 Signed-off-by: Fenglin Wu --- 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 Wed Sep 1 08:18:08 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fenglin Wu X-Patchwork-Id: 12468617 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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 7B800C4320E for ; Wed, 1 Sep 2021 08:19:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5D3C86103A for ; Wed, 1 Sep 2021 08:19:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243152AbhIAIU2 (ORCPT ); Wed, 1 Sep 2021 04:20:28 -0400 Received: from alexa-out.qualcomm.com ([129.46.98.28]:24722 "EHLO alexa-out.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243135AbhIAIUY (ORCPT ); Wed, 1 Sep 2021 04:20:24 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1630484368; x=1662020368; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=kOj1T/M9/T/1A0YLEYHMt7zmOnXmigoTevu8jxHooAU=; b=Tu4E5xm1etg3h9QUq3B8gBgmkYhT/92uukxMEX5i0tslaHJnhA3/eAL0 wY2Hpf3XFsf7U0Tai+eRt/PcV2C0NO65+seS94TLEO4SKB3sqKyxsQ4ia q9ywzeOedCTpzHMipvVy5lymFGZ3mKQFImFPOesLSMTKSmtrT/T5TPl1j I=; Received: from ironmsg-lv-alpha.qualcomm.com ([10.47.202.13]) by alexa-out.qualcomm.com with ESMTP; 01 Sep 2021 01:19:28 -0700 X-QCInternal: smtphost Received: from nalasex01c.na.qualcomm.com ([10.47.97.35]) by ironmsg-lv-alpha.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Sep 2021 01:19:27 -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_GCM_SHA384) id 15.2.922.7; Wed, 1 Sep 2021 01:19:25 -0700 From: Fenglin Wu To: , , CC: , , , Yimin Peng Subject: [RESEND PATCH v1 7/9] spmi: pmic-arb: support updating interrupt type flags Date: Wed, 1 Sep 2021 16:18:08 +0800 Message-ID: <1630484290-28190-8-git-send-email-quic_fenglinw@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1630484290-28190-1-git-send-email-quic_fenglinw@quicinc.com> References: <1630484290-28190-1-git-send-email-quic_fenglinw@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) 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 Wed Sep 1 08:18:09 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fenglin Wu X-Patchwork-Id: 12468621 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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 BE5CEC4320E for ; Wed, 1 Sep 2021 08:19:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A50676103A for ; Wed, 1 Sep 2021 08:19:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243207AbhIAIUg (ORCPT ); Wed, 1 Sep 2021 04:20:36 -0400 Received: from alexa-out.qualcomm.com ([129.46.98.28]:52979 "EHLO alexa-out.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243141AbhIAIU0 (ORCPT ); Wed, 1 Sep 2021 04:20:26 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1630484370; x=1662020370; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=hCWrDSqZz1/MJx0Y2r+Vv1EF0PQcvg19mxnobpT+a9s=; b=uhrkqhUkeRAVUL32niVbyzmqaSPKZbynwbcYEMTPtY8P3yP7VeuP6LOd X4C4dlaInxneMwqYSHsxvdCjcVNYldftaCSp8cvrZo3xnD+Do0ZH5IwYz tkXPJ1gw47/UlsL2ftwnGesbMTXzqjGgKLwjHpW3tpfhe4qMZXEtVwUOy k=; Received: from ironmsg07-lv.qualcomm.com ([10.47.202.151]) by alexa-out.qualcomm.com with ESMTP; 01 Sep 2021 01:19:29 -0700 X-QCInternal: smtphost Received: from nalasex01c.na.qualcomm.com ([10.47.97.35]) by ironmsg07-lv.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Sep 2021 01:19:30 -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_GCM_SHA384) id 15.2.922.7; Wed, 1 Sep 2021 01:19:27 -0700 From: Fenglin Wu To: , , CC: , , Subject: [RESEND PATCH v1 8/9] spmi: pmic-arb: make interrupt support optional Date: Wed, 1 Sep 2021 16:18:09 +0800 Message-ID: <1630484290-28190-9-git-send-email-quic_fenglinw@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1630484290-28190-1-git-send-email-quic_fenglinw@quicinc.com> References: <1630484290-28190-1-git-send-email-quic_fenglinw@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) 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 Wed Sep 1 08:18:10 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fenglin Wu X-Patchwork-Id: 12468619 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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 0F383C432BE for ; Wed, 1 Sep 2021 08:19:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id ECE7760698 for ; Wed, 1 Sep 2021 08:19:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243194AbhIAIUe (ORCPT ); Wed, 1 Sep 2021 04:20:34 -0400 Received: from alexa-out.qualcomm.com ([129.46.98.28]:25480 "EHLO alexa-out.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243134AbhIAIU3 (ORCPT ); Wed, 1 Sep 2021 04:20:29 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1630484373; x=1662020373; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=/rJWYNLEshjtrC1IGOED6acbfsbHHmLBFIvrAeJEFiI=; b=nON/LH16VDTRy4UL6lm41/dLIDG31OIYHzqdVChmsTUkiItXn4YcsSUW cITe2FCzuV26IsPDblkchXTp5ZGgre6LadB6wIPWUop+VEp8aToOHirAu WMQMBmb3Ugcf6ph4kxOiDwZVOZy6Anf54kU82J+ZfY7AwgAd6LHUo7eK2 s=; Received: from ironmsg09-lv.qualcomm.com ([10.47.202.153]) by alexa-out.qualcomm.com with ESMTP; 01 Sep 2021 01:19:33 -0700 X-QCInternal: smtphost Received: from nalasex01c.na.qualcomm.com ([10.47.97.35]) by ironmsg09-lv.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Sep 2021 01:19:33 -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_GCM_SHA384) id 15.2.922.7; Wed, 1 Sep 2021 01:19:29 -0700 From: Fenglin Wu To: , , CC: , , Subject: [RESEND PATCH v1 9/9] spmi: pmic-arb: increase SPMI transaction timeout delay Date: Wed, 1 Sep 2021 16:18:10 +0800 Message-ID: <1630484290-28190-10-git-send-email-quic_fenglinw@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1630484290-28190-1-git-send-email-quic_fenglinw@quicinc.com> References: <1630484290-28190-1-git-send-email-quic_fenglinw@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) 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