[PATCH V2 1/3] arm64: dts: imx8mm: Add support for micfil

[PATCH V2 1/3] arm64: dts: imx8mm: Add support for micfil

[Adam Ford]

The i.MX8M Mini has supports the MICFIL digital interface.
It's a 16-bit audio signal from a PDM microphone bitstream.
The driver is already in the kernel, but the node is missing.

This patch adds the micfil node.

Signed-off-by: Adam Ford <aford173@gmail.com>
---
V2:  No change

diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
index b83f400def8b..fad1f9cdb241 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
@@ -339,6 +339,25 @@ sai6: sai@30060000 {
 				status = "disabled";
 			};
 
+			micfil: audio-controller@30080000 {
+				compatible = "fsl,imx8mm-micfil";
+				reg = <0x30080000 0x10000>;
+				interrupts = <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>,
+					     <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>,
+					     <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>,
+					     <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&clk IMX8MM_CLK_PDM_IPG>,
+					 <&clk IMX8MM_CLK_PDM_ROOT>,
+					 <&clk IMX8MM_AUDIO_PLL1_OUT>,
+					 <&clk IMX8MM_AUDIO_PLL2_OUT>,
+					 <&clk IMX8MM_CLK_EXT3>;
+				clock-names = "ipg_clk", "ipg_clk_app",
+					      "pll8k", "pll11k", "clkext3";
+				dmas = <&sdma2 24 25 0x80000000>;
+				dma-names = "rx";
+				status = "disabled";
+			};
+
 			gpio1: gpio@30200000 {
 				compatible = "fsl,imx8mm-gpio", "fsl,imx35-gpio";
 				reg = <0x30200000 0x10000>;
-- 
2.25.1

[PATCH V2 2/3] arm64: dts: imx8mm: Add node for SPDIF

[Adam Ford]

The i.MX8M Mini can support SPDIF which is compatible to the
IP used on the i.MX35.  Add the node.

Signed-off-by: Adam Ford <aford173@gmail.com>
---
V2:  Fix some typos

diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
index fad1f9cdb241..7cc2899db12e 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
@@ -358,6 +358,30 @@ micfil: audio-controller@30080000 {
 				status = "disabled";
 			};
 
+			spdif1: spdif@30090000 {
+				compatible = "fsl,imx35-spdif";
+				reg = <0x30090000 0x10000>;
+				interrupts = <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&clk IMX8MM_CLK_AUDIO_AHB>, /* core */
+					 <&clk IMX8MM_CLK_24M>, /* rxtx0 */
+					 <&clk IMX8MM_CLK_SPDIF1>, /* rxtx1 */
+					 <&clk IMX8MM_CLK_DUMMY>, /* rxtx2 */
+					 <&clk IMX8MM_CLK_DUMMY>, /* rxtx3 */
+					 <&clk IMX8MM_CLK_DUMMY>, /* rxtx4 */
+					 <&clk IMX8MM_CLK_AUDIO_AHB>, /* rxtx5 */
+					 <&clk IMX8MM_CLK_DUMMY>, /* rxtx6 */
+					 <&clk IMX8MM_CLK_DUMMY>, /* rxtx7 */
+					 <&clk IMX8MM_CLK_DUMMY>; /* spba */
+				clock-names = "core", "rxtx0",
+					      "rxtx1", "rxtx2",
+					      "rxtx3", "rxtx4",
+					      "rxtx5", "rxtx6",
+					      "rxtx7", "spba";
+				dmas = <&sdma2 28 18 0>, <&sdma2 29 18 0>;
+				dma-names = "rx", "tx";
+				status = "disabled";
+			};
+
 			gpio1: gpio@30200000 {
 				compatible = "fsl,imx8mm-gpio", "fsl,imx35-gpio";
 				reg = <0x30200000 0x10000>;
-- 
2.25.1

[PATCH V2 3/3] arm64: defconfig: Enable additional sound drivers on i.MX8M Mini

[Adam Ford]

The i.MX8M Mini has micfil and SPDIF support but the drivers
are not being loaded.

This patch updates the defconfig to add support for these drivers.

Signed-off-by: Adam Ford <aford173@gmail.com>
---
V2:  No Change

diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
index e0f33826819f..20362359b212 100644
--- a/arch/arm64/configs/defconfig
+++ b/arch/arm64/configs/defconfig
@@ -674,6 +674,10 @@ CONFIG_SND_HDA_CODEC_HDMI=m
 CONFIG_SND_SOC=y
 CONFIG_SND_BCM2835_SOC_I2S=m
 CONFIG_SND_SOC_FSL_SAI=m
+CONFIG_SND_SOC_FSL_MICFIL=m
+CONFIG_SND_IMX_SOC=m
+CONFIG_SND_SOC_IMX_SPDIF=m
+CONFIG_SND_SOC_IMX_AUDMIX=m
 CONFIG_SND_MESON_AXG_SOUND_CARD=m
 CONFIG_SND_MESON_GX_SOUND_CARD=m
 CONFIG_SND_SOC_SDM845=m
-- 
2.25.1

Re: [PATCH V2 3/3] arm64: defconfig: Enable additional sound drivers on i.MX8M Mini

[Krzysztof Kozlowski]

On Mon, Oct 19, 2020 at 11:50:38AM -0500, Adam Ford wrote:
> The i.MX8M Mini has micfil and SPDIF support but the drivers
> are not being loaded.
> 
> This patch updates the defconfig to add support for these drivers.
> 
> Signed-off-by: Adam Ford <aford173@gmail.com>
> ---
> V2:  No Change

Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>

Best regards,
Krzysztof

Re: [PATCH V2 1/3] arm64: dts: imx8mm: Add support for micfil

[Krzysztof Kozlowski]

On Mon, Oct 19, 2020 at 11:50:36AM -0500, Adam Ford wrote:
> The i.MX8M Mini has supports the MICFIL digital interface.
> It's a 16-bit audio signal from a PDM microphone bitstream.
> The driver is already in the kernel, but the node is missing.
> 
> This patch adds the micfil node.
> 
> Signed-off-by: Adam Ford <aford173@gmail.com>
> ---
> V2:  No change
> 

Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>

Best regards,
Krzysztof

Re: [PATCH V2 1/3] arm64: dts: imx8mm: Add support for micfil

[Shawn Guo]

On Mon, Oct 19, 2020 at 11:50:36AM -0500, Adam Ford wrote:
> The i.MX8M Mini has supports the MICFIL digital interface.
> It's a 16-bit audio signal from a PDM microphone bitstream.
> The driver is already in the kernel, but the node is missing.
> 
> This patch adds the micfil node.
> 
> Signed-off-by: Adam Ford <aford173@gmail.com>

Applied all, thanks.