On 9/1/23 13:02, Adam Ford wrote:
On Thu, Aug 31, 2023 at 4:52 PM Marek Vasut <marex@xxxxxxx> wrote:
On 8/31/23 06:44, Adam Ford wrote:
The i.MX8MP has an asynchronous sample rate converter which seems
to be the same as what is available on the i.MX8M Nano.
Signed-off-by: Adam Ford <aford173@xxxxxxxxx>
---
V3: No Change. The dt-binding update was already accepted into the sound tree, so that patch
was dropped from the series
V2: No Change.
diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
index 83d907294fbc..3167706d81e1 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
@@ -1459,6 +1459,26 @@ sai7: sai@30c80000 {
interrupts = <GIC_SPI 111 IRQ_TYPE_LEVEL_HIGH>;
status = "disabled";
};
+
+ easrc: easrc@30c90000 {
+ compatible = "fsl,imx8mp-easrc", "fsl,imx8mn-easrc";
+ reg = <0x30c90000 0x10000>;
+ interrupts = <GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&audio_blk_ctrl IMX8MP_CLK_AUDIOMIX_ASRC_IPG>;
+ clock-names = "mem";
+ dmas = <&sdma2 16 23 0> , <&sdma2 17 23 0>,
+ <&sdma2 18 23 0> , <&sdma2 19 23 0>,
+ <&sdma2 20 23 0> , <&sdma2 21 23 0>,
+ <&sdma2 22 23 0> , <&sdma2 23 23 0>;
+ dma-names = "ctx0_rx", "ctx0_tx",
+ "ctx1_rx", "ctx1_tx",
+ "ctx2_rx", "ctx2_tx",
+ "ctx3_rx", "ctx3_tx";
+ firmware-name = "imx/easrc/easrc-imx8mn.bin";
Should the firmware name really be imx8mn or should it be imx8mp ?
The firmware blobs provided by NXP only has easrc-imx8mn.bin and would
be concerned that having a different name might confuse people if they
try to go look for it and they only find easrc-imx8mn.bin. To me,
this is no different than the SDMA driver using firmware called
sdma-imx7d.bin
On the other hand, there is "fsl,imx8mp-easrc" compatible string -- to
differentiate between IPs in case some difference between the IPs that
cannot be predicted so far is found later on.
I think the later is better, you can always add a symlink for the
firmware name, and you can discern mx8mn/mp firmwares on the same rootfs
in case that was ever needed in the future.
Which is what this part of my comment ^ is all about.
