2018-05-25 02:37:30

by Thierry Escande

[permalink] [raw]
Subject: [PATCH v2] arm64: dts: apq8096-db820c: Removed bt-en-1-8v regulator

This patch removes the unused bt-en-1-8v regulator and moves the
bt_en_gios claim to the pm8994_gpios node.

This bt_en_gpio could have been moved to the bluetooth serial node but
instead this node declares an 'enable' gpio addressing the bt_en_gpio.
This is needed by the Qualcomm QCA6174 WLAN/BT combo chip that needs to
have the bt_en_gpio claimed even if only WLAN is used.

Signed-off-by: Thierry Escande <[email protected]>
---

Change in v2:
- Rebased on top of [1] posted a few days ago:

[1] https://lkml.org/lkml/2018/5/22/949
"arm64: dts: fix regulator property name for wlan pcie endpoint"


arch/arm64/boot/dts/qcom/apq8096-db820c-pmic-pins.dtsi | 2 +-
arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi | 14 --------------
2 files changed, 1 insertion(+), 15 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/apq8096-db820c-pmic-pins.dtsi b/arch/arm64/boot/dts/qcom/apq8096-db820c-pmic-pins.dtsi
index 6167af955659..a6ad3d7fe655 100644
--- a/arch/arm64/boot/dts/qcom/apq8096-db820c-pmic-pins.dtsi
+++ b/arch/arm64/boot/dts/qcom/apq8096-db820c-pmic-pins.dtsi
@@ -4,7 +4,7 @@
&pm8994_gpios {

pinctrl-names = "default";
- pinctrl-0 = <&ls_exp_gpio_f>;
+ pinctrl-0 = <&ls_exp_gpio_f &bt_en_gpios>;

ls_exp_gpio_f: pm8994_gpio5 {
pinconf {
diff --git a/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi b/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
index 7ca6e78def55..2c026b8af792 100644
--- a/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
+++ b/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
@@ -171,19 +171,6 @@
pinctrl-0 = <&usb2_vbus_det_gpio>;
};

- bt_en: bt-en-1-8v {
- pinctrl-names = "default";
- pinctrl-0 = <&bt_en_gpios>;
- compatible = "regulator-fixed";
- regulator-name = "bt-en-regulator";
- regulator-min-microvolt = <1800000>;
- regulator-max-microvolt = <1800000>;
-
- /* WLAN card specific delay */
- startup-delay-us = <70000>;
- enable-active-high;
- };
-
wlan_en: wlan-en-1-8v {
pinctrl-names = "default";
pinctrl-0 = <&wlan_en_gpios>;
@@ -204,7 +191,6 @@
status = "okay";
perst-gpio = <&msmgpio 35 GPIO_ACTIVE_LOW>;
vddpe-3v3-supply = <&wlan_en>;
- vddpe1-supply = <&bt_en>;
};

pcie@608000 {
--
2.14.1



2018-05-25 19:33:09

by Bjorn Andersson

[permalink] [raw]
Subject: Re: [PATCH v2] arm64: dts: apq8096-db820c: Removed bt-en-1-8v regulator

On Thu 24 May 11:01 PDT 2018, Thierry Escande wrote:

> This patch removes the unused bt-en-1-8v regulator and moves the
> bt_en_gios claim to the pm8994_gpios node.
>
> This bt_en_gpio could have been moved to the bluetooth serial node but
> instead this node declares an 'enable' gpio addressing the bt_en_gpio.
> This is needed by the Qualcomm QCA6174 WLAN/BT combo chip that needs to
> have the bt_en_gpio claimed even if only WLAN is used.
>
> Signed-off-by: Thierry Escande <[email protected]>

Reviewed-by: Bjorn Andersson <[email protected]>

Regards,
Bjorn

> ---
>
> Change in v2:
> - Rebased on top of [1] posted a few days ago:
>
> [1] https://lkml.org/lkml/2018/5/22/949
> "arm64: dts: fix regulator property name for wlan pcie endpoint"
>
>
> arch/arm64/boot/dts/qcom/apq8096-db820c-pmic-pins.dtsi | 2 +-
> arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi | 14 --------------
> 2 files changed, 1 insertion(+), 15 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/qcom/apq8096-db820c-pmic-pins.dtsi b/arch/arm64/boot/dts/qcom/apq8096-db820c-pmic-pins.dtsi
> index 6167af955659..a6ad3d7fe655 100644
> --- a/arch/arm64/boot/dts/qcom/apq8096-db820c-pmic-pins.dtsi
> +++ b/arch/arm64/boot/dts/qcom/apq8096-db820c-pmic-pins.dtsi
> @@ -4,7 +4,7 @@
> &pm8994_gpios {
>
> pinctrl-names = "default";
> - pinctrl-0 = <&ls_exp_gpio_f>;
> + pinctrl-0 = <&ls_exp_gpio_f &bt_en_gpios>;
>
> ls_exp_gpio_f: pm8994_gpio5 {
> pinconf {
> diff --git a/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi b/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
> index 7ca6e78def55..2c026b8af792 100644
> --- a/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
> +++ b/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
> @@ -171,19 +171,6 @@
> pinctrl-0 = <&usb2_vbus_det_gpio>;
> };
>
> - bt_en: bt-en-1-8v {
> - pinctrl-names = "default";
> - pinctrl-0 = <&bt_en_gpios>;
> - compatible = "regulator-fixed";
> - regulator-name = "bt-en-regulator";
> - regulator-min-microvolt = <1800000>;
> - regulator-max-microvolt = <1800000>;
> -
> - /* WLAN card specific delay */
> - startup-delay-us = <70000>;
> - enable-active-high;
> - };
> -
> wlan_en: wlan-en-1-8v {
> pinctrl-names = "default";
> pinctrl-0 = <&wlan_en_gpios>;
> @@ -204,7 +191,6 @@
> status = "okay";
> perst-gpio = <&msmgpio 35 GPIO_ACTIVE_LOW>;
> vddpe-3v3-supply = <&wlan_en>;
> - vddpe1-supply = <&bt_en>;
> };
>
> pcie@608000 {
> --
> 2.14.1
>