[v1] arm64: dts: imx93-evk/qsb: add m2-pcm-level-shifter-hog to enable BT HFP

[PATCH] arm64: dts: imx93-evk/qsb: add m2-pcm-level-shifter-hog to enable BT HFP

Posted by Sherry Sun 2 weeks, 4 days ago

For i.MX93 11x11 EVK and 9x9 QSB boards, add the gpio-hog to enable the
M.2 PCM pins level shifter connected between soc sai1 interface and M.2
PCM pins so that HFP feature can be supported.

Signed-off-by: Sherry Sun <sherry.sun@nxp.com>
---
 arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts | 6 ++++++
 arch/arm64/boot/dts/freescale/imx93-9x9-qsb.dts   | 6 ++++++
 2 files changed, 12 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts b/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts
index 8dd5340e8141..acb160d3186c 100644
--- a/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts
@@ -356,6 +356,12 @@ pcal6524: gpio@22 {
 		#interrupt-cells = <2>;
 		interrupt-parent = <&gpio3>;
 		interrupts = <27 IRQ_TYPE_LEVEL_LOW>;
+
+		m2-pcm-level-shifter-hog {
+			gpio-hog;
+			gpios = <19 GPIO_ACTIVE_HIGH>;
+			output-high;
+		};
 	};
 
 	pmic@25 {
diff --git a/arch/arm64/boot/dts/freescale/imx93-9x9-qsb.dts b/arch/arm64/boot/dts/freescale/imx93-9x9-qsb.dts
index 0852067eab2c..11e08673083b 100644
--- a/arch/arm64/boot/dts/freescale/imx93-9x9-qsb.dts
+++ b/arch/arm64/boot/dts/freescale/imx93-9x9-qsb.dts
@@ -349,6 +349,12 @@ mic-can-sel-hog {
 			gpios = <17 GPIO_ACTIVE_HIGH>;
 			output-low;
 		};
+
+		m2-pcm-level-shifter-hog {
+			gpio-hog;
+			gpios = <19 GPIO_ACTIVE_HIGH>;
+			output-high;
+		};
 	};
 
 	pmic@25 {
-- 
2.37.1

Re: [PATCH] arm64: dts: imx93-evk/qsb: add m2-pcm-level-shifter-hog to enable BT HFP

Posted by Frank Li 2 weeks, 4 days ago

On Tue, Jan 20, 2026 at 04:32:33PM +0800, Sherry Sun wrote:
> For i.MX93 11x11 EVK and 9x9 QSB boards, add the gpio-hog to enable the
> M.2 PCM pins level shifter connected between soc sai1 interface and M.2
> PCM pins so that HFP feature can be supported.

Does sai1 have any refer to pcal6524? sai may probe before pcal6524, so
m2-pcm-level-shifter-hog may not set when sai probe.

Frank
>
> Signed-off-by: Sherry Sun <sherry.sun@nxp.com>
> ---
>  arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts | 6 ++++++
>  arch/arm64/boot/dts/freescale/imx93-9x9-qsb.dts   | 6 ++++++
>  2 files changed, 12 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts b/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts
> index 8dd5340e8141..acb160d3186c 100644
> --- a/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts
> +++ b/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts
> @@ -356,6 +356,12 @@ pcal6524: gpio@22 {
>  		#interrupt-cells = <2>;
>  		interrupt-parent = <&gpio3>;
>  		interrupts = <27 IRQ_TYPE_LEVEL_LOW>;
> +
> +		m2-pcm-level-shifter-hog {
> +			gpio-hog;
> +			gpios = <19 GPIO_ACTIVE_HIGH>;
> +			output-high;
> +		};
>  	};
>
>  	pmic@25 {
> diff --git a/arch/arm64/boot/dts/freescale/imx93-9x9-qsb.dts b/arch/arm64/boot/dts/freescale/imx93-9x9-qsb.dts
> index 0852067eab2c..11e08673083b 100644
> --- a/arch/arm64/boot/dts/freescale/imx93-9x9-qsb.dts
> +++ b/arch/arm64/boot/dts/freescale/imx93-9x9-qsb.dts
> @@ -349,6 +349,12 @@ mic-can-sel-hog {
>  			gpios = <17 GPIO_ACTIVE_HIGH>;
>  			output-low;
>  		};
> +
> +		m2-pcm-level-shifter-hog {
> +			gpio-hog;
> +			gpios = <19 GPIO_ACTIVE_HIGH>;
> +			output-high;
> +		};
>  	};
>
>  	pmic@25 {
> --
> 2.37.1
>