From: Fenglin Wu <quic_fenglinw@quicinc.com>
To: <linux-arm-msm@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<sboyd@kernel.org>
Cc: <collinsd@codeaurora.org>, <subbaram@codeaurora.org>,
<quic_fenglinw@quicinc.com>
Subject: [PATCH V1 8/9] spmi: pmic-arb: make interrupt support optional
Date: Thu, 29 Jul 2021 09:12:46 +0800 [thread overview]
Message-ID: <1627521167-18848-9-git-send-email-quic_fenglinw@quicinc.com> (raw)
In-Reply-To: <1627521167-18848-1-git-send-email-quic_fenglinw@quicinc.com>
From: David Collins <collinsd@codeaurora.org>
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 <collinsd@codeaurora.org>
Signed-off-by: Fenglin Wu <quic_fenglinw@quicinc.com>
---
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;
}
--
Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project.
next prev parent reply other threads:[~2021-07-29 1:14 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-29 1:12 [PATCH V1 0/9] A bunch of fix and optimization patches in spmi-pmic-arb.c Fenglin Wu
2021-07-29 1:12 ` [PATCH V1 1/9] spmi: pmic-arb: add a print in cleanup_irq Fenglin Wu
2021-07-29 1:12 ` [PATCH V1 2/9] spmi: pmic-arb: do not ack and clear peripheral interrupts " Fenglin Wu
2021-07-29 1:12 ` [PATCH V1 3/9] spmi: pmic-arb: check apid against limits before calling irq handler Fenglin Wu
2021-07-29 1:12 ` [PATCH V1 4/9] spmi: pmic-arb: add support to dispatch interrupt based on IRQ status Fenglin Wu
2021-07-29 1:12 ` [PATCH V1 5/9] spmi: pmic-arb: correct duplicate APID to PPID mapping logic Fenglin Wu
2021-07-29 1:12 ` [PATCH V1 6/9] spmi: pmic-arb: block access for invalid PMIC arbiter v5 SPMI writes Fenglin Wu
2021-07-29 1:12 ` [PATCH V1 7/9] spmi: pmic-arb: support updating interrupt type flags Fenglin Wu
2021-07-29 1:12 ` Fenglin Wu [this message]
2021-07-29 1:12 ` [PATCH V1 9/9] spmi: pmic-arb: increase SPMI transaction timeout delay Fenglin Wu
2021-08-20 4:57 [PATCH V1 0/9] A bunch of fix and optimization patches in spmi-pmic-arb.c Fenglin Wu
2021-08-20 4:58 ` [PATCH V1 8/9] spmi: pmic-arb: make interrupt support optional Fenglin Wu
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