[PATCH v2 0/3] arm64: dts: allwinner: a64: olinuxino: Update regulators

[PATCH v2 0/3] arm64: dts: allwinner: a64: olinuxino: Update regulators

[Stefan Mavrodiev]

This patch serie updates bank regulators for A64-OLinuXino and 
A64-OLinuXino-eMMC.

Also, eMMC supply is changed to ELDO1, which is the actual one. The same is
done for the SDIO card - ALDO2 is changed to DCDC1.

Changes for v2:
 - Restore the original eMMC vmmc-supply property
 - Add fixes and kernel tags

Stefan Mavrodiev (3):
  arm64: dts: allwinner: a64: olinuxino: Fix eMMC supply regulator
  arm64: dts: allwinner: a64: olinuxino: Add bank supply regulators
  arm64: dts: allwinner: a64: olinuxino: Fix SDIO supply regulator

 .../allwinner/sun50i-a64-olinuxino-emmc.dts    |  6 +++++-
 .../dts/allwinner/sun50i-a64-olinuxino.dts     | 18 +++++++++++++++++-
 2 files changed, 22 insertions(+), 2 deletions(-)

-- 
2.17.1

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[PATCH v2 1/3] arm64: dts: allwinner: a64: olinuxino: Fix eMMC supply regulator

[Stefan Mavrodiev]

A64-OLinuXino-eMMC uses 1.8V for eMMC supply. This is done via a triple
jumper, which sets VCC-PL to either 1.8V or 3.3V. This setting is different
for boards with and without eMMC.

This is not a big issue for DDR52 mode, however the eMMC will not work in
HS200/HS400, since these modes explicitly requires 1.8V.

Fixes: 94f68f3a4b2a ("arm64: dts: allwinner: a64: Add A64 OlinuXino board (with eMMC)")
Cc: stable@vger.kernel.org # v5.4
Signed-off-by: Stefan Mavrodiev <stefan@olimex.com>
---
Changes for v2:
 - Restore the original eMMC vmmc-supply property

 arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino-emmc.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino-emmc.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino-emmc.dts
index 96ab0227e82d..121e6cc4849b 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino-emmc.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino-emmc.dts
@@ -15,7 +15,7 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&mmc2_pins>;
 	vmmc-supply = <&reg_dcdc1>;
-	vqmmc-supply = <&reg_dcdc1>;
+	vqmmc-supply = <&reg_eldo1>;
 	bus-width = <8>;
 	non-removable;
 	cap-mmc-hw-reset;
-- 
2.17.1

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[PATCH v2 2/3] arm64: dts: allwinner: a64: olinuxino: Add bank supply regulators

[Stefan Mavrodiev]

Allwinner A64 SoC has separate supplies for PC, PD, PE, PG and PL. This
patch adds regulators for them to the pinctrl node.

Exception is PL which is used by the RSB bus. To avoid circular
dependencies, VCC-PL is omitted.

On boards with eMMC, VCC-PC is supplied by ELDO1, instead of DCDC1.

Signed-off-by: Stefan Mavrodiev <stefan@olimex.com>
---
 .../dts/allwinner/sun50i-a64-olinuxino-emmc.dts  |  4 ++++
 .../boot/dts/allwinner/sun50i-a64-olinuxino.dts  | 16 ++++++++++++++++
 2 files changed, 20 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino-emmc.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino-emmc.dts
index 121e6cc4849b..12f8c62c4f52 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino-emmc.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino-emmc.dts
@@ -21,3 +21,7 @@
 	cap-mmc-hw-reset;
 	status = "okay";
 };
+
+&pio {
+	vcc-pc-supply = <&reg_eldo1>;
+};
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino.dts
index 01a9a52edae4..ad3559c576dd 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino.dts
@@ -163,6 +163,22 @@
 	status = "okay";
 };
 
+&pio {
+	vcc-pc-supply = <&reg_dcdc1>;
+	vcc-pd-supply = <&reg_dcdc1>;
+	vcc-pe-supply = <&reg_aldo1>;
+	vcc-pg-supply = <&reg_dldo4>;
+};
+
+&r_pio {
+	/**
+	 * Do not add vcc-pl-supply, since PL0 and PL1 are used
+	 * by the RSB bus.
+	 *
+	 * vcc-pl-supply = <&reg_aldo2>;
+	 */
+};
+
 &r_rsb {
 	status = "okay";
 
-- 
2.17.1


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[PATCH v2 3/3] arm64: dts: allwinner: a64: olinuxino: Fix SDIO supply regulator

[Stefan Mavrodiev]

A64-OLinuXino uses DCDC1 (VCC-IO) for MMC1 supply. In commit 916b68cfe4b5
("arm64: dts: a64-olinuxino: Enable RTL8723BS WiFi") ALDO2 is set, which is
VCC-PL. Since DCDC1 is always present, the boards are working without a
problem.

This patch sets the correct regulator.

Fixes: 916b68cfe4b5 ("arm64: dts: a64-olinuxino: Enable RTL8723BS WiFi")
Cc: stable@vger.kernel.org # v4.16+
Signed-off-by: Stefan Mavrodiev <stefan@olimex.com>
---
 arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino.dts
index ad3559c576dd..869bb146a9ff 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino.dts
@@ -140,7 +140,7 @@
 &mmc1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&mmc1_pins>;
-	vmmc-supply = <&reg_aldo2>;
+	vmmc-supply = <&reg_dcdc1>;
 	vqmmc-supply = <&reg_dldo4>;
 	mmc-pwrseq = <&wifi_pwrseq>;
 	bus-width = <4>;
-- 
2.17.1

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Re: [PATCH v2 1/3] arm64: dts: allwinner: a64: olinuxino: Fix eMMC supply regulator

[Maxime Ripard]

[-- Attachment #1.1: Type: text/plain, Size: 598 bytes --]

On Fri, Nov 29, 2019 at 01:39:39PM +0200, Stefan Mavrodiev wrote:
> A64-OLinuXino-eMMC uses 1.8V for eMMC supply. This is done via a triple
> jumper, which sets VCC-PL to either 1.8V or 3.3V. This setting is different
> for boards with and without eMMC.
>
> This is not a big issue for DDR52 mode, however the eMMC will not work in
> HS200/HS400, since these modes explicitly requires 1.8V.
>
> Fixes: 94f68f3a4b2a ("arm64: dts: allwinner: a64: Add A64 OlinuXino board (with eMMC)")
> Cc: stable@vger.kernel.org # v5.4
> Signed-off-by: Stefan Mavrodiev <stefan@olimex.com>

Applied, thanks!
Maxime

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Re: [PATCH v2 2/3] arm64: dts: allwinner: a64: olinuxino: Add bank supply regulators

[Maxime Ripard]

[-- Attachment #1.1: Type: text/plain, Size: 457 bytes --]

On Fri, Nov 29, 2019 at 01:39:40PM +0200, Stefan Mavrodiev wrote:
> Allwinner A64 SoC has separate supplies for PC, PD, PE, PG and PL. This
> patch adds regulators for them to the pinctrl node.
>
> Exception is PL which is used by the RSB bus. To avoid circular
> dependencies, VCC-PL is omitted.
>
> On boards with eMMC, VCC-PC is supplied by ELDO1, instead of DCDC1.
>
> Signed-off-by: Stefan Mavrodiev <stefan@olimex.com>

Queued for 5.6, thanks!
Maxime

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Re: [PATCH v2 3/3] arm64: dts: allwinner: a64: olinuxino: Fix SDIO supply regulator

[Maxime Ripard]

[-- Attachment #1.1: Type: text/plain, Size: 542 bytes --]

On Fri, Nov 29, 2019 at 01:39:41PM +0200, Stefan Mavrodiev wrote:
> A64-OLinuXino uses DCDC1 (VCC-IO) for MMC1 supply. In commit 916b68cfe4b5
> ("arm64: dts: a64-olinuxino: Enable RTL8723BS WiFi") ALDO2 is set, which is
> VCC-PL. Since DCDC1 is always present, the boards are working without a
> problem.
>
> This patch sets the correct regulator.
>
> Fixes: 916b68cfe4b5 ("arm64: dts: a64-olinuxino: Enable RTL8723BS WiFi")
> Cc: stable@vger.kernel.org # v4.16+
> Signed-off-by: Stefan Mavrodiev <stefan@olimex.com>

Applied, thanks!
Maxime

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