On Wed, Feb 14, 2024 at 5:15 AM Luca Ceresoli [off-list ref] wrote:

On Sat, 10 Feb 2024 14:46:00 -0600
Adam Ford [off-list ref] wrote:

quoted

From: Lucas Stach <l.stach@pengutronix.de>

The HDMI irqsteer is a secondary interrupt controller within the HDMI
subsystem that maps all HDMI peripheral IRQs into a single upstream
IRQ line.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Adam Ford <redacted>
---
V2:  Add my (Adam) s-o-b and re-order position under AIPS4
---
 arch/arm64/boot/dts/freescale/imx8mp.dtsi | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
index 0730d4cf9bc4..9b8ab367d774 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi

@@ -1927,6 +1927,19 @@ hdmi_blk_ctrl: blk-ctrl@32fc0000 {
                                                   "hdcp", "hrv";
                              #power-domain-cells = <1>;
                      };
+
+                     irqsteer_hdmi: interrupt-controller@32fc2000 {
+                             compatible = "fsl,imx-irqsteer";
+                             reg = <0x32fc2000 0x44>;

The last register being at offset 0x44, this should be <0x32fc2000
0x48> or even <... 0x1000> as the TRM mentions a 4 kB size.

I'll do 0x1000 in the next revision to match the documentation since
there doesn't appear to be any overlap.

adam

[Tested using Avnet MSC SM2S-IMX8PLUS SoM on Avnet MSC SM2-MB-EP1]
Tested-by: Luca Ceresoli <luca.ceresoli@bootlin.com>


Luca

--
Luca Ceresoli, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

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