[PATCH v3 20/27] media: rockchip: rga: share the interrupt when an external iommu is used
From: Sven Püschel <hidden>
Date: 2026-01-27 14:40:44
Also in:
linux-devicetree, linux-media, linux-rockchip, lkml
Subsystem:
arm/rockchip soc support, media input infrastructure (v4l/dvb), rockchip raster 2d graphic acceleration unit driver, the rest · Maintainers:
Heiko Stuebner, Mauro Carvalho Chehab, Jacob Chen, Ezequiel Garcia, Linus Torvalds
From: Michael Olbrich <redacted> The RGA3 and the corresponding iommu share the interrupt. So in that case, request a shared interrupt so that the iommu driver can request it as well. Signed-off-by: Michael Olbrich <redacted> Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> Signed-off-by: Sven Püschel <redacted> --- drivers/media/platform/rockchip/rga/rga.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/media/platform/rockchip/rga/rga.c b/drivers/media/platform/rockchip/rga/rga.c
index b13ff8d7c572c..b2ee59235d1e3 100644
--- a/drivers/media/platform/rockchip/rga/rga.c
+++ b/drivers/media/platform/rockchip/rga/rga.c@@ -761,7 +761,8 @@ static int rga_probe(struct platform_device *pdev) goto err_put_clk; } - ret = devm_request_irq(rga->dev, irq, rga_isr, 0, + ret = devm_request_irq(rga->dev, irq, rga_isr, + rga_has_internal_iommu(rga) ? 0 : IRQF_SHARED, dev_name(rga->dev), rga); if (ret < 0) { dev_err(rga->dev, "failed to request irq\n");
--
2.52.0