[PATCH 1/3] arm64: dts: qcom: qrb5165-rb5: add an alias for uart6

[PATCH 1/3] arm64: dts: qcom: qrb5165-rb5: add an alias for uart6

[Bartosz Golaszewski]

From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Alias uart6 to serial1 for qrb5165-rb5. This is the high-speed port used
by Bluetooth.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
---
 arch/arm64/boot/dts/qcom/qrb5165-rb5.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
index c8cd40a462a3..ce6ae0771d34 100644
--- a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
+++ b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
@@ -23,6 +23,7 @@ / {
 
 	aliases {
 		serial0 = &uart12;
+		serial1 = &uart6;
 		sdhc2 = &sdhc_2;
 	};
 
-- 
2.40.1

[PATCH 2/3] arm64: dts: qcom: qrb5165-rb5: add a pin function for BT enable GPIO

[Bartosz Golaszewski]

From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Set up the pin function for the Bluetooth enable GPIO.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
---
 arch/arm64/boot/dts/qcom/qrb5165-rb5.dts | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
index ce6ae0771d34..ead0c45ba60c 100644
--- a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
+++ b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
@@ -1264,6 +1264,17 @@ &tlmm {
 		"HST_WLAN_UART_TX",
 		"HST_WLAN_UART_RX";
 
+	bt_en_state: bt-default-state {
+		bt-en {
+			pins = "gpio21";
+			function = "gpio";
+
+			drive-strength = <16>;
+			output-low;
+			bias-pull-up;
+		};
+	};
+
 	lt9611_irq_pin: lt9611-irq-state {
 		pins = "gpio63";
 		function = "gpio";
-- 
2.40.1

[PATCH 3/3] arm64: dts: qcom: qrb5165-rb5: add the Bluetooth node

[Bartosz Golaszewski]

From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Add the Bluetooth node for RB5.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
---
 arch/arm64/boot/dts/qcom/qrb5165-rb5.dts | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
index ead0c45ba60c..fbdf8fdb532c 100644
--- a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
+++ b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
@@ -1308,6 +1308,26 @@ sdc2_card_det_n: sd-card-det-n-state {
 	};
 };
 
+&uart6 {
+	status = "okay";
+
+	bluetooth {
+		compatible = "qcom,qca6390-bt";
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&bt_en_state>;
+
+		enable-gpios = <&tlmm 21 GPIO_ACTIVE_HIGH>;
+
+		vddio-supply = <&vreg_s4a_1p8>;
+		vddpmu-supply = <&vreg_s2f_0p95>;
+		vddaon-supply = <&vreg_s6a_0p95>;
+		vddrfa1-supply = <&vreg_s2f_0p95>;
+		vddrfa2-supply = <&vreg_s8c_1p3>;
+		vddrfa3-supply = <&vreg_s5a_1p9>;
+	};
+};
+
 &uart12 {
 	status = "okay";
 };
-- 
2.40.1

Re: [PATCH 2/3] arm64: dts: qcom: qrb5165-rb5: add a pin function for BT enable GPIO

[Johan Hovold]

On Tue, Dec 05, 2023 at 12:23:10PM +0100, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
> 
> Set up the pin function for the Bluetooth enable GPIO.
> 
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
> ---
>  arch/arm64/boot/dts/qcom/qrb5165-rb5.dts | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
> index ce6ae0771d34..ead0c45ba60c 100644
> --- a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
> +++ b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
> @@ -1264,6 +1264,17 @@ &tlmm {
>  		"HST_WLAN_UART_TX",
>  		"HST_WLAN_UART_RX";
>  
> +	bt_en_state: bt-default-state {
> +		bt-en {
> +			pins = "gpio21";
> +			function = "gpio";
> +
> +			drive-strength = <16>;
> +			output-low;
> +			bias-pull-up;
> +		};
> +	};
> +
>  	lt9611_irq_pin: lt9611-irq-state {
>  		pins = "gpio63";
>  		function = "gpio";

This makes no sense as a separate patch and should be squashed with the
final patch enabling bluetooth. Same for the first patch.

Johan

Re: [PATCH 2/3] arm64: dts: qcom: qrb5165-rb5: add a pin function for BT enable GPIO

[Krzysztof Kozlowski]

On 05/12/2023 12:23, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
> 
> Set up the pin function for the Bluetooth enable GPIO.
> 
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
> ---
>  arch/arm64/boot/dts/qcom/qrb5165-rb5.dts | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
> index ce6ae0771d34..ead0c45ba60c 100644
> --- a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
> +++ b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
> @@ -1264,6 +1264,17 @@ &tlmm {
>  		"HST_WLAN_UART_TX",
>  		"HST_WLAN_UART_RX";
>  
> +	bt_en_state: bt-default-state {
> +		bt-en {

This looks like tlmm, so you miss here suffix.

It does not look like you tested the DTS against bindings. Please run
`make dtbs_check W=1` (see
Documentation/devicetree/bindings/writing-schema.rst or
https://www.linaro.org/blog/tips-and-tricks-for-validating-devicetree-sources-with-the-devicetree-schema/
for instructions).


Best regards,
Krzysztof

Re: [PATCH 2/3] arm64: dts: qcom: qrb5165-rb5: add a pin function for BT enable GPIO

[Konrad Dybcio]

On 12/5/23 12:23, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
> 
> Set up the pin function for the Bluetooth enable GPIO.
> 
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
> ---
>   arch/arm64/boot/dts/qcom/qrb5165-rb5.dts | 11 +++++++++++
>   1 file changed, 11 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
> index ce6ae0771d34..ead0c45ba60c 100644
> --- a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
> +++ b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
> @@ -1264,6 +1264,17 @@ &tlmm {
>   		"HST_WLAN_UART_TX",
>   		"HST_WLAN_UART_RX";
>   
> +	bt_en_state: bt-default-state {
> +		bt-en {
> +			pins = "gpio21";
If it's the only GPIO expected to be here, you may drop the
extra bt-en level, like the entry below

Konrad