[PATCH v3 04/10] media: hantro: make irq names configurable

From: Philipp Zabel <p.zabel@pengutronix.de>
To: linux-media@vger.kernel.org
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>,
	Hans Verkuil <hverkuil@xs4all.nl>,
	Boris Brezillon <boris.brezillon@collabora.com>,
	Ezequiel Garcia <ezequiel@collabora.com>,
	Nicolas Dufresne <nicolas@ndufresne.ca>,
	Jonas Karlman <jonas@kwiboo.se>,
	devicetree@vger.kernel.org, kernel@pengutronix.de
Subject: [PATCH v3 04/10] media: hantro: make irq names configurable
Date: Fri, 31 May 2019 10:55:17 +0200	[thread overview]
Message-ID: <20190531085523.10892-5-p.zabel@pengutronix.de> (raw)
In-Reply-To: <20190531085523.10892-1-p.zabel@pengutronix.de>

The i.MX8MQ bindings will use different IRQ names ("g1" instead of
"vdpu", and "g2"), so make them configurable. This also allows to
register more than two IRQs, which will be required for i.MX8MM support
later (it will add "h1" instead of "vepu").

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
---
Changes since v2 [1]:
 - Introduce struct hantro_irq, containing irq name and handler
 - Replace separate integrated arrays in struct hantro_variant with
   single external array of struct hantro_irq.
 - Use ARRAY_SIZE to set num_irqs.

[1] https://patchwork.linuxtv.org/patch/56421/
---
 drivers/staging/media/hantro/hantro.h        | 19 ++++++++---
 drivers/staging/media/hantro/hantro_drv.c    | 33 +++++++-------------
 drivers/staging/media/hantro/rk3288_vpu_hw.c |  9 ++++--
 drivers/staging/media/hantro/rk3399_vpu_hw.c | 16 ++++++++--
 4 files changed, 46 insertions(+), 31 deletions(-)

diff --git a/drivers/staging/media/hantro/hantro.h b/drivers/staging/media/hantro/hantro.h
index 296b9ffad547..d041d36a0805 100644
--- a/drivers/staging/media/hantro/hantro.h
+++ b/drivers/staging/media/hantro/hantro.h
@@ -44,6 +44,17 @@ struct hantro_codec_ops;
 #define HANTRO_MPEG2_DECODER	BIT(16)
 #define HANTRO_DECODERS		0xffff0000
 
+/**
+ * struct hantro_irq - irq handler and name
+ *
+ * @name:			irq name for device tree lookup
+ * @handler:			interrupt handler
+ */
+struct hantro_irq {
+	const char *name;
+	irqreturn_t (*handler)(int irq, void *priv);
+};
+
 /**
  * struct hantro_variant - information about VPU hardware variant
  *
@@ -57,8 +68,8 @@ struct hantro_codec_ops;
  * @codec_ops:			Codec ops.
  * @init:			Initialize hardware.
  * @runtime_resume:		reenable hardware after power gating
- * @vepu_irq:			encoder interrupt handler
- * @vdpu_irq:			decoder interrupt handler
+ * @irqs:			array of irq names and interrupt handlers
+ * @num_irqs:			number of irqs in the array
  * @clk_names:			array of clock names
  * @num_clocks:			number of clocks in the array
  */
@@ -73,8 +84,8 @@ struct hantro_variant {
 	const struct hantro_codec_ops *codec_ops;
 	int (*init)(struct hantro_dev *vpu);
 	int (*runtime_resume)(struct hantro_dev *vpu);
-	irqreturn_t (*vepu_irq)(int irq, void *priv);
-	irqreturn_t (*vdpu_irq)(int irq, void *priv);
+	const struct hantro_irq *irqs;
+	int num_irqs;
 	const char *clk_names[HANTRO_MAX_CLOCKS];
 	int num_clocks;
 };
diff --git a/drivers/staging/media/hantro/hantro_drv.c b/drivers/staging/media/hantro/hantro_drv.c
index fb5f140dbaae..e49bb03a988e 100644
--- a/drivers/staging/media/hantro/hantro_drv.c
+++ b/drivers/staging/media/hantro/hantro_drv.c
@@ -705,36 +705,25 @@ static int hantro_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	if (vpu->variant->vdpu_irq) {
+	for (i = 0; i < vpu->variant->num_irqs; i++) {
+		const char *irq_name = vpu->variant->irqs[i].name;
 		int irq;
 
-		irq = platform_get_irq_byname(vpu->pdev, "vdpu");
-		if (irq <= 0) {
-			dev_err(vpu->dev, "Could not get vdpu IRQ.\n");
-			return -ENXIO;
-		}
-
-		ret = devm_request_irq(vpu->dev, irq, vpu->variant->vdpu_irq,
-				       0, dev_name(vpu->dev), vpu);
-		if (ret) {
-			dev_err(vpu->dev, "Could not request vdpu IRQ.\n");
-			return ret;
-		}
-	}
-
-	if (vpu->variant->vepu_irq) {
-		int irq;
+		if (!vpu->variant->irqs[i].handler)
+			continue;
 
-		irq = platform_get_irq_byname(vpu->pdev, "vepu");
+		irq = platform_get_irq_byname(vpu->pdev, irq_name);
 		if (irq <= 0) {
-			dev_err(vpu->dev, "Could not get vepu IRQ.\n");
+			dev_err(vpu->dev, "Could not get %s IRQ.\n", irq_name);
 			return -ENXIO;
 		}
 
-		ret = devm_request_irq(vpu->dev, irq, vpu->variant->vepu_irq,
-				       0, dev_name(vpu->dev), vpu);
+		ret = devm_request_irq(vpu->dev, irq,
+				       vpu->variant->irqs[i].handler, 0,
+				       dev_name(vpu->dev), vpu);
 		if (ret) {
-			dev_err(vpu->dev, "Could not request vepu IRQ.\n");
+			dev_err(vpu->dev, "Could not request %s IRQ.\n",
+				irq_name);
 			return ret;
 		}
 	}
diff --git a/drivers/staging/media/hantro/rk3288_vpu_hw.c b/drivers/staging/media/hantro/rk3288_vpu_hw.c
index 38adf74037fc..b4d5e24167db 100644
--- a/drivers/staging/media/hantro/rk3288_vpu_hw.c
+++ b/drivers/staging/media/hantro/rk3288_vpu_hw.c
@@ -160,6 +160,11 @@ static const struct hantro_codec_ops rk3288_vpu_codec_ops[] = {
  * VPU variant.
  */
 
+static const struct hantro_irq rk3288_irqs[] = {
+	{ "vepu", rk3288_vepu_irq },
+	{ "vdpu", rk3288_vdpu_irq },
+};
+
 const struct hantro_variant rk3288_vpu_variant = {
 	.enc_offset = 0x0,
 	.enc_fmts = rk3288_vpu_enc_fmts,
@@ -169,8 +174,8 @@ const struct hantro_variant rk3288_vpu_variant = {
 	.num_dec_fmts = ARRAY_SIZE(rk3288_vpu_dec_fmts),
 	.codec = HANTRO_JPEG_ENCODER | HANTRO_MPEG2_DECODER,
 	.codec_ops = rk3288_vpu_codec_ops,
-	.vepu_irq = rk3288_vepu_irq,
-	.vdpu_irq = rk3288_vdpu_irq,
+	.irqs = rk3288_irqs,
+	.num_irqs = ARRAY_SIZE(rk3288_irqs),
 	.init = rk3288_vpu_hw_init,
 	.clk_names = {"aclk", "hclk"},
 	.num_clocks = 2
diff --git a/drivers/staging/media/hantro/rk3399_vpu_hw.c b/drivers/staging/media/hantro/rk3399_vpu_hw.c
index 5e51def41f57..fc52bedf3665 100644
--- a/drivers/staging/media/hantro/rk3399_vpu_hw.c
+++ b/drivers/staging/media/hantro/rk3399_vpu_hw.c
@@ -160,6 +160,11 @@ static const struct hantro_codec_ops rk3399_vpu_codec_ops[] = {
  * VPU variant.
  */
 
+static const struct hantro_irq rk3399_irqs[] = {
+	{ "vepu", rk3399_vepu_irq },
+	{ "vdpu", rk3399_vdpu_irq },
+};
+
 const struct hantro_variant rk3399_vpu_variant = {
 	.enc_offset = 0x0,
 	.enc_fmts = rk3399_vpu_enc_fmts,
@@ -169,20 +174,25 @@ const struct hantro_variant rk3399_vpu_variant = {
 	.num_dec_fmts = ARRAY_SIZE(rk3399_vpu_dec_fmts),
 	.codec = HANTRO_JPEG_ENCODER | HANTRO_MPEG2_DECODER,
 	.codec_ops = rk3399_vpu_codec_ops,
-	.vepu_irq = rk3399_vepu_irq,
-	.vdpu_irq = rk3399_vdpu_irq,
+	.irqs = rk3399_irqs,
+	.num_irqs = ARRAY_SIZE(rk3399_irqs),
 	.init = rk3399_vpu_hw_init,
 	.clk_names = {"aclk", "hclk"},
 	.num_clocks = 2
 };
 
+static const struct hantro_irq rk3328_irqs[] = {
+	{ "vdpu", rk3399_vdpu_irq },
+};
+
 const struct hantro_variant rk3328_vpu_variant = {
 	.dec_offset = 0x400,
 	.dec_fmts = rk3399_vpu_dec_fmts,
 	.num_dec_fmts = ARRAY_SIZE(rk3399_vpu_dec_fmts),
 	.codec = HANTRO_MPEG2_DECODER,
 	.codec_ops = rk3399_vpu_codec_ops,
-	.vdpu_irq = rk3399_vdpu_irq,
+	.irqs = rk3328_irqs,
+	.num_irqs = ARRAY_SIZE(rk3328_irqs),
 	.init = rk3399_vpu_hw_init,
 	.clk_names = {"aclk", "hclk"},
 	.num_clocks = 2
-- 
2.20.1
