[PATCH v3 2/4] media: rkisp1: Fix IRQ handler return values

[Tomi Valkeinen]

The IRQ handler rkisp1_isr() calls sub-handlers, all of which returns an
irqreturn_t value, but rkisp1_isr() ignores those values and always
returns IRQ_HANDLED.

Fix this by collecting the return values, and returning IRQ_HANDLED or
IRQ_NONE as appropriate.

Reviewed-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
Tested-by: Adam Ford <aford173 at gmail.com>  #imx8mp-beacon
Signed-off-by: Tomi Valkeinen <tomi.valkeinen at ideasonboard.com>
---
 drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
index 4c4514e20673..22b2ae0e89c4 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
@@ -442,17 +442,25 @@ static int rkisp1_entities_register(struct rkisp1_device *rkisp1)
 
 static irqreturn_t rkisp1_isr(int irq, void *ctx)
 {
+	irqreturn_t ret = IRQ_NONE;
+
 	/*
 	 * Call rkisp1_capture_isr() first to handle the frame that
 	 * potentially completed using the current frame_sequence number before
 	 * it is potentially incremented by rkisp1_isp_isr() in the vertical
 	 * sync.
 	 */
-	rkisp1_capture_isr(irq, ctx);
-	rkisp1_isp_isr(irq, ctx);
-	rkisp1_csi_isr(irq, ctx);
 
-	return IRQ_HANDLED;
+	if (rkisp1_capture_isr(irq, ctx) == IRQ_HANDLED)
+		ret = IRQ_HANDLED;
+
+	if (rkisp1_isp_isr(irq, ctx) == IRQ_HANDLED)
+		ret = IRQ_HANDLED;
+
+	if (rkisp1_csi_isr(irq, ctx) == IRQ_HANDLED)
+		ret = IRQ_HANDLED;
+
+	return ret;
 }
 
 static const char * const px30_isp_clks[] = {

-- 
2.34.1