[PATCH 0/3] Quartz64-A fixes and enablement from 5.17-rc1

[PATCH 0/3] Quartz64-A fixes and enablement from 5.17-rc1

[Peter Geis]

Good Evening,

This is the first of several patch series for further expanding
Quartz64-A support.

This series has the following patches:
Fix the ddr regulator voltage.
Add pmu_io_domains to permit sdio and high speed emmc support.
Add sdmmc1 node for wifi support.

Please review and apply.

Very Respectfully,
Peter Geis


Peter Geis (3):
  arm64: dts: rockchip: fix Quartz64-A ddr regulator voltage
  arm64: dts: rockchip: add Quartz64-A pmu_io_domains
  arm64: dts: rockchip: add Quartz64-A sdmmc1 node

 .../boot/dts/rockchip/rk3566-quartz64-a.dts   | 60 ++++++++++++++++++-
 1 file changed, 58 insertions(+), 2 deletions(-)

-- 
2.25.1

[PATCH 1/3] arm64: dts: rockchip: fix Quartz64-A ddr regulator voltage

[Peter Geis]

The Quartz64 Model A uses a voltage divider to ensure ddr voltage is
within specification from the default regulator configuration.
Adjusting this voltage is detrimental, and currently causes the ddr
voltage to be about 0.8v.

Remove the min and max voltage setpoints for the ddr regulator.

Fixes: b33a22a1e7c4 ("arm64: dts: rockchip: add basic dts for Pine64
Quartz64-A")

Signed-off-by: Peter Geis <pgwipeout@gmail.com>
---
 arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
index 166399b7f13f..d9eb92d59099 100644
--- a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
@@ -285,8 +285,6 @@ regulator-state-mem {
 			vcc_ddr: DCDC_REG3 {
 				regulator-always-on;
 				regulator-boot-on;
-				regulator-min-microvolt = <1100000>;
-				regulator-max-microvolt = <1100000>;
 				regulator-initial-mode = <0x2>;
 				regulator-name = "vcc_ddr";
 				regulator-state-mem {
-- 
2.25.1

[PATCH 2/3] arm64: dts: rockchip: add Quartz64-A pmu_io_domains

[Peter Geis]

Several io power domains on the Quartz64-A operate at 1.8v.
Add the pmu_io_domains definition to enable support for this.
This permits the enablement of the following features:
sdio - wifi support
sdhci - mmc-hs200-1_8v

Signed-off-by: Peter Geis <pgwipeout@gmail.com>
---
 arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
index d9eb92d59099..33c2c18caaa9 100644
--- a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
@@ -482,6 +482,19 @@ vcc_sd_h: vcc-sd-h {
 	};
 };
 
+&pmu_io_domains {
+	pmuio1-supply = <&vcc3v3_pmu>;
+	pmuio2-supply = <&vcc3v3_pmu>;
+	vccio1-supply = <&vccio_acodec>;
+	vccio2-supply = <&vcc_1v8>;
+	vccio3-supply = <&vccio_sd>;
+	vccio4-supply = <&vcc_1v8>;
+	vccio5-supply = <&vcc_3v3>;
+	vccio6-supply = <&vcc1v8_dvp>;
+	vccio7-supply = <&vcc_3v3>;
+	status = "okay";
+};
+
 &sdhci {
 	bus-width = <8>;
 	mmc-hs200-1_8v;
-- 
2.25.1

[PATCH 3/3] arm64: dts: rockchip: add Quartz64-A sdmmc1 node

[Peter Geis]

The sdmmc1 node on Quartz64-A supports the optional wifi module from
Pine64.
Add the sdmmc1 node and requisite sdio_pwrseq to enable wifi support on
the Quartz64-A.

Signed-off-by: Peter Geis <pgwipeout@gmail.com>
---
 .../boot/dts/rockchip/rk3566-quartz64-a.dts   | 45 +++++++++++++++++++
 1 file changed, 45 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
index 33c2c18caaa9..1d73ac6557c5 100644
--- a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
@@ -91,6 +91,18 @@ simple-audio-card,codec {
 		};
 	};
 
+	sdio_pwrseq: sdio-pwrseq {
+		status = "okay";
+		compatible = "mmc-pwrseq-simple";
+		clocks = <&rk817 1>;
+		clock-names = "ext_clock";
+		pinctrl-names = "default";
+		pinctrl-0 = <&wifi_enable_h>;
+		reset-gpios = <&gpio2 RK_PC2 GPIO_ACTIVE_LOW>;
+		post-power-on-delay-ms = <100>;
+		power-off-delay-us = <5000000>;
+	};
+
 	vcc12v_dcin: vcc12v_dcin {
 		compatible = "regulator-fixed";
 		regulator-name = "vcc12v_dcin";
@@ -147,6 +159,17 @@ vcc_sys: vcc_sys {
 		regulator-max-microvolt = <4400000>;
 		vin-supply = <&vbus>;
 	};
+
+	/* sourced from vcc_sys, sdio module operates internally at 3.3v */
+	vcc_wl: vcc_wl {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_wl";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		vin-supply = <&vcc_sys>;
+	};
 };
 
 &cpu0 {
@@ -475,6 +498,12 @@ pmic_int_l: pmic-int-l {
 		};
 	};
 
+	sdio-pwrseq {
+		wifi_enable_h: wifi-enable-h {
+			rockchip,pins = <2 RK_PC2 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
 	vcc_sd {
 		vcc_sd_h: vcc-sd-h {
 			rockchip,pins = <0 RK_PA5 RK_FUNC_GPIO &pcfg_pull_none>;
@@ -516,6 +545,22 @@ &sdmmc0 {
 	status = "okay";
 };
 
+&sdmmc1 {
+	bus-width = <4>;
+	cap-sd-highspeed;
+	cap-sdio-irq;
+	disable-wp;
+	keep-power-in-suspend;
+	mmc-pwrseq = <&sdio_pwrseq>;
+	non-removable;
+	pinctrl-names = "default";
+	pinctrl-0 = <&sdmmc1_bus4 &sdmmc1_cmd &sdmmc1_clk>;
+	sd-uhs-sdr104;
+	vmmc-supply = <&vcc_wl>;
+	vqmmc-supply = <&vcc_1v8>;
+	status = "okay";
+};
+
 &spdif {
 	status = "okay";
 };
-- 
2.25.1

Re: [PATCH 2/3] arm64: dts: rockchip: add Quartz64-A pmu_io_domains

[Johan Jonker]

Hi Peter,

On 1/27/22 02:00, Peter Geis wrote:
> Several io power domains on the Quartz64-A operate at 1.8v.
> Add the pmu_io_domains definition to enable support for this.
> This permits the enablement of the following features:
> sdio - wifi support
> sdhci - mmc-hs200-1_8v
> 
> Signed-off-by: Peter Geis <pgwipeout@gmail.com>
> ---
>  arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
> index d9eb92d59099..33c2c18caaa9 100644
> --- a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
> +++ b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
> @@ -482,6 +482,19 @@ vcc_sd_h: vcc-sd-h {
>  	};
>  };
>  

https://files.pine64.org/doc/quartz64/Quartz64_model-A_schematic_v2.0_20210427.pdf

Could you check with the IO Power Domain Map?

> +&pmu_io_domains {
> +	pmuio1-supply = <&vcc3v3_pmu>;
VCC3V3_PMU

> +	pmuio2-supply = <&vcc3v3_pmu>;
VCC3V3_PMU

> +	vccio1-supply = <&vccio_acodec>;
VCCIO_ACODEC

> +	vccio2-supply = <&vcc_1v8>;
VCC_1V8

> +	vccio3-supply = <&vccio_sd>;
VCCIO_SD

> +	vccio4-supply = <&vcc_1v8>;
==> VCC1V8_PMU

> +	vccio5-supply = <&vcc_3v3>;
==> VCC_1V8

> +	vccio6-supply = <&vcc1v8_dvp>;
VCC1V8_DVP

> +	vccio7-supply = <&vcc_3v3>;
VCC_3V3

> +	status = "okay";
> +};
> +
>  &sdhci {
>  	bus-width = <8>;
>  	mmc-hs200-1_8v;

Re: [PATCH 3/3] arm64: dts: rockchip: add Quartz64-A sdmmc1 node

[Johan Jonker]

On 1/27/22 02:00, Peter Geis wrote:
> The sdmmc1 node on Quartz64-A supports the optional wifi module from
> Pine64.
> Add the sdmmc1 node and requisite sdio_pwrseq to enable wifi support on
> the Quartz64-A.
> 
> Signed-off-by: Peter Geis <pgwipeout@gmail.com>
> ---
>  .../boot/dts/rockchip/rk3566-quartz64-a.dts   | 45 +++++++++++++++++++
>  1 file changed, 45 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
> index 33c2c18caaa9..1d73ac6557c5 100644
> --- a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
> +++ b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
> @@ -91,6 +91,18 @@ simple-audio-card,codec {
>  		};
>  	};
>  
> +	sdio_pwrseq: sdio-pwrseq {

> +		status = "okay";

When a node is not previously disabled, then there's no need for "okay".

> +		compatible = "mmc-pwrseq-simple";
> +		clocks = <&rk817 1>;
> +		clock-names = "ext_clock";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&wifi_enable_h>;
> +		reset-gpios = <&gpio2 RK_PC2 GPIO_ACTIVE_LOW>;
> +		post-power-on-delay-ms = <100>;
> +		power-off-delay-us = <5000000>;
> +	};
> +
>  	vcc12v_dcin: vcc12v_dcin {
>  		compatible = "regulator-fixed";
>  		regulator-name = "vcc12v_dcin";
> @@ -147,6 +159,17 @@ vcc_sys: vcc_sys {
>  		regulator-max-microvolt = <4400000>;
>  		vin-supply = <&vbus>;
>  	};
> +
> +	/* sourced from vcc_sys, sdio module operates internally at 3.3v */
> +	vcc_wl: vcc_wl {
> +		compatible = "regulator-fixed";
> +		regulator-name = "vcc_wl";
> +		regulator-always-on;
> +		regulator-boot-on;
> +		regulator-min-microvolt = <3300000>;
> +		regulator-max-microvolt = <3300000>;
> +		vin-supply = <&vcc_sys>;
> +	};
>  };
>  
>  &cpu0 {
> @@ -475,6 +498,12 @@ pmic_int_l: pmic-int-l {
>  		};
>  	};
>  
> +	sdio-pwrseq {
> +		wifi_enable_h: wifi-enable-h {
> +			rockchip,pins = <2 RK_PC2 RK_FUNC_GPIO &pcfg_pull_none>;
> +		};
> +	};
> +
>  	vcc_sd {
>  		vcc_sd_h: vcc-sd-h {
>  			rockchip,pins = <0 RK_PA5 RK_FUNC_GPIO &pcfg_pull_none>;
> @@ -516,6 +545,22 @@ &sdmmc0 {
>  	status = "okay";
>  };
>  
> +&sdmmc1 {
> +	bus-width = <4>;
> +	cap-sd-highspeed;
> +	cap-sdio-irq;

> +	disable-wp;

From mmc-controller.yaml:

  disable-wp:
    $ref: /schemas/types.yaml#/definitions/flag
    description:
      When set, no physical write-protect line is present. This
      property should only be specified when the controller has a
      dedicated write-protect detection logic. If a GPIO is always used
      for the write-protect detection logic, it is sufficient to not
      specify the wp-gpios property in the absence of a write-protect
      line. Not used in combination with eMMC or SDIO.

> +	keep-power-in-suspend;
> +	mmc-pwrseq = <&sdio_pwrseq>;
> +	non-removable;
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&sdmmc1_bus4 &sdmmc1_cmd &sdmmc1_clk>;
> +	sd-uhs-sdr104;
> +	vmmc-supply = <&vcc_wl>;
> +	vqmmc-supply = <&vcc_1v8>;
> +	status = "okay";
> +};
> +
>  &spdif {
>  	status = "okay";
>  };

Re: [PATCH 2/3] arm64: dts: rockchip: add Quartz64-A pmu_io_domains

[Peter Geis]

On Thu, Jan 27, 2022 at 12:57 AM Johan Jonker <jbx6244@gmail.com> wrote:
>
> Hi Peter,

Good Morning,

The Rockchip schematics IO Power Domain Map is rarely *if ever* 100%
accurate, you need to check the actual schematic for ground truth.

>
> On 1/27/22 02:00, Peter Geis wrote:
> > Several io power domains on the Quartz64-A operate at 1.8v.
> > Add the pmu_io_domains definition to enable support for this.
> > This permits the enablement of the following features:
> > sdio - wifi support
> > sdhci - mmc-hs200-1_8v
> >
> > Signed-off-by: Peter Geis <pgwipeout@gmail.com>
> > ---
> >  arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts | 13 +++++++++++++
> >  1 file changed, 13 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
> > index d9eb92d59099..33c2c18caaa9 100644
> > --- a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
> > +++ b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
> > @@ -482,6 +482,19 @@ vcc_sd_h: vcc-sd-h {
> >       };
> >  };
> >
>
> https://files.pine64.org/doc/quartz64/Quartz64_model-A_schematic_v2.0_20210427.pdf
>
> Could you check with the IO Power Domain Map?
>
> > +&pmu_io_domains {
> > +     pmuio1-supply = <&vcc3v3_pmu>;
> VCC3V3_PMU
>
> > +     pmuio2-supply = <&vcc3v3_pmu>;
> VCC3V3_PMU
>
> > +     vccio1-supply = <&vccio_acodec>;
> VCCIO_ACODEC
>
> > +     vccio2-supply = <&vcc_1v8>;
> VCC_1V8
>
> > +     vccio3-supply = <&vccio_sd>;
> VCCIO_SD
>
> > +     vccio4-supply = <&vcc_1v8>;
> ==> VCC1V8_PMU

Page 16 of the schematic, VCCIO4 is tied to VCC_1V8 via R1519

>
> > +     vccio5-supply = <&vcc_3v3>;
> ==> VCC_1V8

Page 20 of the schematic, VCCIO5 is tied to VCC_3V3 via R1800

>
> > +     vccio6-supply = <&vcc1v8_dvp>;
> VCC1V8_DVP
>
> > +     vccio7-supply = <&vcc_3v3>;
> VCC_3V3
>
> > +     status = "okay";
> > +};
> > +
> >  &sdhci {
> >       bus-width = <8>;
> >       mmc-hs200-1_8v;

Thanks for double checking,
Peter

Re: [PATCH 3/3] arm64: dts: rockchip: add Quartz64-A sdmmc1 node

[Peter Geis]

On Thu, Jan 27, 2022 at 1:18 AM Johan Jonker <jbx6244@gmail.com> wrote:
>
>
>
> On 1/27/22 02:00, Peter Geis wrote:
> > The sdmmc1 node on Quartz64-A supports the optional wifi module from
> > Pine64.
> > Add the sdmmc1 node and requisite sdio_pwrseq to enable wifi support on
> > the Quartz64-A.
> >
> > Signed-off-by: Peter Geis <pgwipeout@gmail.com>
> > ---
> >  .../boot/dts/rockchip/rk3566-quartz64-a.dts   | 45 +++++++++++++++++++
> >  1 file changed, 45 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
> > index 33c2c18caaa9..1d73ac6557c5 100644
> > --- a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
> > +++ b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
> > @@ -91,6 +91,18 @@ simple-audio-card,codec {
> >               };
> >       };
> >
> > +     sdio_pwrseq: sdio-pwrseq {
>
> > +             status = "okay";
>
> When a node is not previously disabled, then there's no need for "okay".

Thanks, this is here in case an end user wants to easily hack the
board to use this for other purposes.

>
> > +             compatible = "mmc-pwrseq-simple";
> > +             clocks = <&rk817 1>;
> > +             clock-names = "ext_clock";
> > +             pinctrl-names = "default";
> > +             pinctrl-0 = <&wifi_enable_h>;
> > +             reset-gpios = <&gpio2 RK_PC2 GPIO_ACTIVE_LOW>;
> > +             post-power-on-delay-ms = <100>;
> > +             power-off-delay-us = <5000000>;
> > +     };
> > +
> >       vcc12v_dcin: vcc12v_dcin {
> >               compatible = "regulator-fixed";
> >               regulator-name = "vcc12v_dcin";
> > @@ -147,6 +159,17 @@ vcc_sys: vcc_sys {
> >               regulator-max-microvolt = <4400000>;
> >               vin-supply = <&vbus>;
> >       };
> > +
> > +     /* sourced from vcc_sys, sdio module operates internally at 3.3v */
> > +     vcc_wl: vcc_wl {
> > +             compatible = "regulator-fixed";
> > +             regulator-name = "vcc_wl";
> > +             regulator-always-on;
> > +             regulator-boot-on;
> > +             regulator-min-microvolt = <3300000>;
> > +             regulator-max-microvolt = <3300000>;
> > +             vin-supply = <&vcc_sys>;
> > +     };
> >  };
> >
> >  &cpu0 {
> > @@ -475,6 +498,12 @@ pmic_int_l: pmic-int-l {
> >               };
> >       };
> >
> > +     sdio-pwrseq {
> > +             wifi_enable_h: wifi-enable-h {
> > +                     rockchip,pins = <2 RK_PC2 RK_FUNC_GPIO &pcfg_pull_none>;
> > +             };
> > +     };
> > +
> >       vcc_sd {
> >               vcc_sd_h: vcc-sd-h {
> >                       rockchip,pins = <0 RK_PA5 RK_FUNC_GPIO &pcfg_pull_none>;
> > @@ -516,6 +545,22 @@ &sdmmc0 {
> >       status = "okay";
> >  };
> >
> > +&sdmmc1 {
> > +     bus-width = <4>;
> > +     cap-sd-highspeed;
> > +     cap-sdio-irq;
>
> > +     disable-wp;
>
> From mmc-controller.yaml:
>
>   disable-wp:
>     $ref: /schemas/types.yaml#/definitions/flag
>     description:
>       When set, no physical write-protect line is present. This
>       property should only be specified when the controller has a
>       dedicated write-protect detection logic. If a GPIO is always used
>       for the write-protect detection logic, it is sufficient to not
>       specify the wp-gpios property in the absence of a write-protect
>       line. Not used in combination with eMMC or SDIO.

Appreciate it, I will drop this.

>
> > +     keep-power-in-suspend;
> > +     mmc-pwrseq = <&sdio_pwrseq>;
> > +     non-removable;
> > +     pinctrl-names = "default";
> > +     pinctrl-0 = <&sdmmc1_bus4 &sdmmc1_cmd &sdmmc1_clk>;
> > +     sd-uhs-sdr104;
> > +     vmmc-supply = <&vcc_wl>;
> > +     vqmmc-supply = <&vcc_1v8>;
> > +     status = "okay";
> > +};
> > +
> >  &spdif {
> >       status = "okay";
> >  };

Re: [PATCH 3/3] arm64: dts: rockchip: add Quartz64-A sdmmc1 node

[Heiko Stübner]

Am Donnerstag, 27. Januar 2022, 10:55:13 CET schrieb Peter Geis:
> On Thu, Jan 27, 2022 at 1:18 AM Johan Jonker <jbx6244@gmail.com> wrote:
> >
> >
> >
> > On 1/27/22 02:00, Peter Geis wrote:
> > > The sdmmc1 node on Quartz64-A supports the optional wifi module from
> > > Pine64.
> > > Add the sdmmc1 node and requisite sdio_pwrseq to enable wifi support on
> > > the Quartz64-A.
> > >
> > > Signed-off-by: Peter Geis <pgwipeout@gmail.com>
> > > ---
> > >  .../boot/dts/rockchip/rk3566-quartz64-a.dts   | 45 +++++++++++++++++++
> > >  1 file changed, 45 insertions(+)
> > >
> > > diff --git a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
> > > index 33c2c18caaa9..1d73ac6557c5 100644
> > > --- a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
> > > +++ b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
> > > @@ -91,6 +91,18 @@ simple-audio-card,codec {
> > >               };
> > >       };
> > >
> > > +     sdio_pwrseq: sdio-pwrseq {
> >
> > > +             status = "okay";
> >
> > When a node is not previously disabled, then there's no need for "okay".
> 
> Thanks, this is here in case an end user wants to easily hack the
> board to use this for other purposes.

but please drop it here as well.

A user "hacking" a devicetree should be able to also just _add_
a status "disabled" :-) .

Re: [PATCH 3/3] arm64: dts: rockchip: add Quartz64-A sdmmc1 node

[Peter Geis]

On Thu, Jan 27, 2022 at 5:15 AM Heiko Stübner <heiko@sntech.de> wrote:
>
> Am Donnerstag, 27. Januar 2022, 10:55:13 CET schrieb Peter Geis:
> > On Thu, Jan 27, 2022 at 1:18 AM Johan Jonker <jbx6244@gmail.com> wrote:
> > >
> > >
> > >
> > > On 1/27/22 02:00, Peter Geis wrote:
> > > > The sdmmc1 node on Quartz64-A supports the optional wifi module from
> > > > Pine64.
> > > > Add the sdmmc1 node and requisite sdio_pwrseq to enable wifi support on
> > > > the Quartz64-A.
> > > >
> > > > Signed-off-by: Peter Geis <pgwipeout@gmail.com>
> > > > ---
> > > >  .../boot/dts/rockchip/rk3566-quartz64-a.dts   | 45 +++++++++++++++++++
> > > >  1 file changed, 45 insertions(+)
> > > >
> > > > diff --git a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
> > > > index 33c2c18caaa9..1d73ac6557c5 100644
> > > > --- a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
> > > > +++ b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
> > > > @@ -91,6 +91,18 @@ simple-audio-card,codec {
> > > >               };
> > > >       };
> > > >
> > > > +     sdio_pwrseq: sdio-pwrseq {
> > >
> > > > +             status = "okay";
> > >
> > > When a node is not previously disabled, then there's no need for "okay".
> >
> > Thanks, this is here in case an end user wants to easily hack the
> > board to use this for other purposes.
>
> but please drop it here as well.
>
> A user "hacking" a devicetree should be able to also just _add_
> a status "disabled" :-) .

Understood, will do.
Thanks!

>
>