media: hantro: make irq names configurable

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>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

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;
 };

drivers/staging/media/hantro/hantro_drv.c

@@ -706,36 +706,25 @@ 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;
 		}
 	}

drivers/staging/media/hantro/rk3288_vpu_hw.c

@@ -161,6 +161,11 @@ 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,
@@ -170,8 +175,8 @@ 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

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,
@@ -169,8 +174,8 @@ 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