ARM: dts: imx6ull-dhcor: Handle both 1DX and 1YN WiFi on i.MX6ULL DHCOR

[PATCH] ARM: dts: imx6ull-dhcor: Handle both 1DX and 1YN WiFi on i.MX6ULL DHCOR

Posted by Marek Vasut 11 hours ago

The muRata 1DX WiFi/BT chip is mounted on the DHCOM i.MX6ULL. This chip
has been discontinued and replaced by the muRata 1YN chip. The new chip
is a drop-in replacement of the old chip. To support both chips for the
i.MX6ULL DHCOR, drop the more specific compatible string and let the
driver auto-detect the chip type. Currently, there are no known quirks
that would apply only to one or the other chip.

Signed-off-by: Marek Vasut <marex@nabladev.com>
---
Cc: Christoph Niedermaier <cniedermaier@dh-electronics.com>
Cc: Conor Dooley <conor+dt@kernel.org>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Krzysztof Kozlowski <krzk+dt@kernel.org>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Rob Herring <robh@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: imx@lists.linux.dev
Cc: kernel@dh-electronics.com
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
---
 arch/arm/boot/dts/nxp/imx/imx6ull-dhcor-som.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/nxp/imx/imx6ull-dhcor-som.dtsi b/arch/arm/boot/dts/nxp/imx/imx6ull-dhcor-som.dtsi
index 75486e1b0c15f..a0adcd3fe1229 100644
--- a/arch/arm/boot/dts/nxp/imx/imx6ull-dhcor-som.dtsi
+++ b/arch/arm/boot/dts/nxp/imx/imx6ull-dhcor-som.dtsi
@@ -201,7 +201,7 @@ &uart2 {
 	 * the speed can be increased accordingly.
 	 */
 	bluetooth: bluetooth {
-		compatible = "brcm,bcm43430a1-bt"; /* muRata 1DX */
+		compatible = "brcm,bcm4329-bt"; /* muRata 1DX or 1YN */
 		max-speed = <3000000>;
 		vbat-supply = <&vcc_3v3>;
 		vddio-supply = <&vcc_3v3>;
@@ -222,7 +222,7 @@ &usdhc1 {
 	status = "okay";
 
 	brcmf: wifi@1 {
-		compatible = "brcm,bcm43430a1-fmac", "brcm,bcm4329-fmac"; /* muRata 1DX */
+		compatible = "brcm,bcm4329-fmac"; /* muRata 1DX or 1YN */
 		reg = <1>;
 	};
 };
-- 
2.51.0

Re: [PATCH] ARM: dts: imx6ull-dhcor: Handle both 1DX and 1YN WiFi on i.MX6ULL DHCOR

Posted by Frank Li 9 hours ago

On Mon, Feb 09, 2026 at 06:07:04PM +0100, Marek Vasut wrote:
> The muRata 1DX WiFi/BT chip is mounted on the DHCOM i.MX6ULL. This chip
> has been discontinued and replaced by the muRata 1YN chip. The new chip
> is a drop-in replacement of the old chip. To support both chips for the
> i.MX6ULL DHCOR, drop the more specific compatible string and let the
> driver auto-detect the chip type. Currently, there are no known quirks
> that would apply only to one or the other chip.
>
> Signed-off-by: Marek Vasut <marex@nabladev.com>
> ---
> Cc: Christoph Niedermaier <cniedermaier@dh-electronics.com>
> Cc: Conor Dooley <conor+dt@kernel.org>
> Cc: Fabio Estevam <festevam@gmail.com>
> Cc: Krzysztof Kozlowski <krzk+dt@kernel.org>
> Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
> Cc: Rob Herring <robh@kernel.org>
> Cc: Sascha Hauer <s.hauer@pengutronix.de>
> Cc: Shawn Guo <shawnguo@kernel.org>
> Cc: devicetree@vger.kernel.org
> Cc: imx@lists.linux.dev
> Cc: kernel@dh-electronics.com
> Cc: linux-arm-kernel@lists.infradead.org
> Cc: linux-kernel@vger.kernel.org
> ---
>  arch/arm/boot/dts/nxp/imx/imx6ull-dhcor-som.dtsi | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm/boot/dts/nxp/imx/imx6ull-dhcor-som.dtsi b/arch/arm/boot/dts/nxp/imx/imx6ull-dhcor-som.dtsi
> index 75486e1b0c15f..a0adcd3fe1229 100644
> --- a/arch/arm/boot/dts/nxp/imx/imx6ull-dhcor-som.dtsi
> +++ b/arch/arm/boot/dts/nxp/imx/imx6ull-dhcor-som.dtsi
> @@ -201,7 +201,7 @@ &uart2 {
>  	 * the speed can be increased accordingly.
>  	 */
>  	bluetooth: bluetooth {
> -		compatible = "brcm,bcm43430a1-bt"; /* muRata 1DX */
> +		compatible = "brcm,bcm4329-bt"; /* muRata 1DX or 1YN */

in driver, brcm,bcm43430a1-bt and brcm,bcm4329-bt should be the same.

>  		max-speed = <3000000>;
>  		vbat-supply = <&vcc_3v3>;
>  		vddio-supply = <&vcc_3v3>;
> @@ -222,7 +222,7 @@ &usdhc1 {
>  	status = "okay";
>
>  	brcmf: wifi@1 {
> -		compatible = "brcm,bcm43430a1-fmac", "brcm,bcm4329-fmac"; /* muRata 1DX */
> +		compatible = "brcm,bcm4329-fmac"; /* muRata 1DX or 1YN */

driver have not check "brcm,bcm43430a1-fmac".

Look like driver can work for both CHIP without modify dts.

Frank
>  		reg = <1>;
>  	};
>  };
> --
> 2.51.0
>

Re: [PATCH] ARM: dts: imx6ull-dhcor: Handle both 1DX and 1YN WiFi on i.MX6ULL DHCOR

Posted by Marek Vasut 7 hours ago

On 2/9/26 8:17 PM, Frank Li wrote:

Hello Frank,

>> diff --git a/arch/arm/boot/dts/nxp/imx/imx6ull-dhcor-som.dtsi b/arch/arm/boot/dts/nxp/imx/imx6ull-dhcor-som.dtsi
>> index 75486e1b0c15f..a0adcd3fe1229 100644
>> --- a/arch/arm/boot/dts/nxp/imx/imx6ull-dhcor-som.dtsi
>> +++ b/arch/arm/boot/dts/nxp/imx/imx6ull-dhcor-som.dtsi
>> @@ -201,7 +201,7 @@ &uart2 {
>>   	 * the speed can be increased accordingly.
>>   	 */
>>   	bluetooth: bluetooth {
>> -		compatible = "brcm,bcm43430a1-bt"; /* muRata 1DX */
>> +		compatible = "brcm,bcm4329-bt"; /* muRata 1DX or 1YN */
> 
> in driver, brcm,bcm43430a1-bt and brcm,bcm4329-bt should be the same.
> 
>>   		max-speed = <3000000>;
>>   		vbat-supply = <&vcc_3v3>;
>>   		vddio-supply = <&vcc_3v3>;
>> @@ -222,7 +222,7 @@ &usdhc1 {
>>   	status = "okay";
>>
>>   	brcmf: wifi@1 {
>> -		compatible = "brcm,bcm43430a1-fmac", "brcm,bcm4329-fmac"; /* muRata 1DX */
>> +		compatible = "brcm,bcm4329-fmac"; /* muRata 1DX or 1YN */
> 
> driver have not check "brcm,bcm43430a1-fmac".
> 
> Look like driver can work for both CHIP without modify dts.
Sure, the driver can work even with the current DT, but the DT isn't 
accurate as it describes compatible string specifically for the 1DX 
part. This change makes the DT use more generic compatible which fits 
both 1DX and 1YN parts. And it also fixes the comment accordingly.