linux-kernel - [PATCH v9 7/8] media: staging: media: starfive: camss: Add interrupt handling

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Message-ID: <20230914031607.34877-8-jack.zhu@starfivetech.com>
Date:   Thu, 14 Sep 2023 11:16:06 +0800
From:   Jack Zhu <jack.zhu@...rfivetech.com>
To:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        Robert Foss <rfoss@...nel.org>,
        Todor Tomov <todor.too@...il.com>,
        <bryan.odonoghue@...aro.org>, Rob Herring <robh+dt@...nel.org>,
        "Krzysztof Kozlowski" <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Hans Verkuil <hverkuil-cisco@...all.nl>
CC:     <linux-media@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-staging@...ts.linux.dev>,
        <jack.zhu@...rfivetech.com>, <changhuang.liang@...rfivetech.com>
Subject: [PATCH v9 7/8] media: staging: media: starfive: camss: Add interrupt handling

Parse interrupt resources and register interrupt handlers.

Signed-off-by: Jack Zhu <jack.zhu@...rfivetech.com>
---
 .../staging/media/starfive/camss/stf-camss.c  | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/drivers/staging/media/starfive/camss/stf-camss.c b/drivers/staging/media/starfive/camss/stf-camss.c
index f083bc0e6e97..373467322885 100644
--- a/drivers/staging/media/starfive/camss/stf-camss.c
+++ b/drivers/staging/media/starfive/camss/stf-camss.c
@@ -35,6 +35,12 @@ static const char * const stfcamss_resets[] = {
 	"rst_isp_top_axi",
 };
 
+static const struct stf_isr_data stf_isrs[] = {
+	{"wr_irq", stf_wr_irq_handler},
+	{"isp_irq", stf_isp_irq_handler},
+	{"line_irq", stf_line_irq_handler},
+};
+
 static int stfcamss_get_mem_res(struct stfcamss *stfcamss)
 {
 	struct platform_device *pdev = to_platform_device(stfcamss->dev);
@@ -160,6 +166,21 @@ static int stfcamss_probe(struct platform_device *pdev)
 
 	stfcamss->dev = dev;
 
+	for (i = 0; i < ARRAY_SIZE(stf_isrs); ++i) {
+		int irq;
+
+		irq = platform_get_irq(pdev, i);
+		if (irq < 0)
+			return irq;
+
+		ret = devm_request_irq(stfcamss->dev, irq, stf_isrs[i].isr, 0,
+				       stf_isrs[i].name, stfcamss);
+		if (ret) {
+			dev_err(dev, "request irq failed: %d\n", ret);
+			return ret;
+		}
+	}
+
 	stfcamss->nclks = ARRAY_SIZE(stfcamss->sys_clk);
 	for (i = 0; i < stfcamss->nclks; ++i)
 		stfcamss->sys_clk[i].id = stfcamss_clocks[i];
-- 
2.34.1