[PATCH v1 0/4] arm64: dts: imx8mq-librem5: description updates

[PATCH v1 0/4] arm64: dts: imx8mq-librem5: description updates

[Martin Kepplinger]

From: Martin Kepplinger <martin.kepplinger@puri.sm>

hi Shaw and all interested,

This is another small but important round of hardware description updates
for the Librem 5 phone. The first allows to use the display stack in
the first place. The other 3 patches improve diplay-blanking when talking,
enable fast charging when system-suspended, and faster system-resume.

thanks,

                         martin

Martin Kepplinger (1):
  arm64: dts: imx8mq-librem5: set audio-1v8 always-on

Sebastian Krzyszkowiak (3):
  arm64: dts: imx8mq-librem5-r4: Bump up proximity sensor's near level
  arm64: dts: imx8mq-librem5: Mark tps65982 as wakeup source
  arm64: dts: imx8mq-librem5: Reduce usdhc2's post-power-on-delay-ms to
    20ms

 arch/arm64/boot/dts/freescale/imx8mq-librem5-r4.dts | 2 +-
 arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi   | 5 ++++-
 2 files changed, 5 insertions(+), 2 deletions(-)

-- 
2.30.2

[PATCH v1 1/4] arm64: dts: imx8mq-librem5: set audio-1v8 always-on

[Martin Kepplinger]

From: Martin Kepplinger <martin.kepplinger@puri.sm>

Unfortunately the codec can't be switched off on it's own. It would ground
the whole bus it's connected to (because of it's built-in diodes to VDD on
i2c pins), making all the other devices on the same bus inaccessible:

[    0.237154] lm3692x 2-0036: Cannot read/clear faults: -11
[    0.242628] lm3692x 2-0036: Fail writing initialization values
[    0.286462] [drm:drm_bridge_attach] *ERROR* failed to attach bridge /soc@0/bus@30800000/mipi-dsi@30a00000 to encoder None-34: -517

Work around this hardware limitation by keeping audio-1v8 enabled.

Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
---
 arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
index 38732579d13e9..ab47bdc35cebd 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
@@ -91,6 +91,7 @@ reg_aud_1v8: regulator-audio-1v8 {
 		regulator-max-microvolt = <1800000>;
 		gpio = <&gpio1 4 GPIO_ACTIVE_HIGH>;
 		enable-active-high;
+		regulator-always-on;
 	};
 
 	reg_mic_2v4: regulator-mic-2v4 {
-- 
2.30.2

[PATCH v1 2/4] arm64: dts: imx8mq-librem5-r4: Bump up proximity sensor's near level

[Martin Kepplinger]

From: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>

There is at least one Evergreen phone out there that reports levels
of 5-6 at rest: https://gitlab.gnome.org/GNOME/calls/-/issues/560

Signed-off-by: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
---
 arch/arm64/boot/dts/freescale/imx8mq-librem5-r4.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5-r4.dts b/arch/arm64/boot/dts/freescale/imx8mq-librem5-r4.dts
index 97577c0a77158..33f398b48119b 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-librem5-r4.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5-r4.dts
@@ -23,5 +23,5 @@ &lcd_panel {
 };
 
 &proximity {
-	proximity-near-level = <5>;
+	proximity-near-level = <7>;
 };
-- 
2.30.2

[PATCH v1 3/4] arm64: dts: imx8mq-librem5: Mark tps65982 as wakeup source

[Martin Kepplinger]

From: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>

This allows to wake up from system suspend on USB-C plug/unplug.

Signed-off-by: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
---
 arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
index ab47bdc35cebd..3f251910b3949 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
@@ -796,6 +796,8 @@ typec_pd: usb-pd@3f {
 		interrupt-parent = <&gpio1>;
 		interrupts = <10 IRQ_TYPE_LEVEL_LOW>;
 		interrupt-names = "irq";
+		extcon = <&usb3_phy0>;
+		wakeup-source;
 
 		connector {
 			compatible = "usb-c-connector";
-- 
2.30.2

[PATCH v1 4/4] arm64: dts: imx8mq-librem5: Reduce usdhc2's post-power-on-delay-ms to 20ms

[Martin Kepplinger]

From: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>

This appears to be enough for both Redpine and SparkLAN cards.
Waiting for too long makes us waste time in resume from system
suspend, so let's keep it as short as possible.

Signed-off-by: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
---
 arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
index 3f251910b3949..e329c29f3f1c6 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
@@ -1394,7 +1394,7 @@ &usdhc2 {
 	bus-width = <4>;
 	vmmc-supply = <&reg_wifi_3v3>;
 	mmc-pwrseq = <&usdhc2_pwrseq>;
-	post-power-on-delay-ms = <1000>;
+	post-power-on-delay-ms = <20>;
 	cd-gpios = <&gpio2 12 GPIO_ACTIVE_LOW>;
 	max-frequency = <100000000>;
 	disable-wp;
-- 
2.30.2

Re: [PATCH v1 0/4] arm64: dts: imx8mq-librem5: description updates

[Shawn Guo]

On Mon, Jul 17, 2023 at 10:00:52AM +0000, Martin Kepplinger wrote:
> From: Martin Kepplinger <martin.kepplinger@puri.sm>
> 
> hi Shaw and all interested,
> 
> This is another small but important round of hardware description updates
> for the Librem 5 phone. The first allows to use the display stack in
> the first place. The other 3 patches improve diplay-blanking when talking,
> enable fast charging when system-suspended, and faster system-resume.
> 
> thanks,
> 
>                          martin
> 
> Martin Kepplinger (1):
>   arm64: dts: imx8mq-librem5: set audio-1v8 always-on
> 
> Sebastian Krzyszkowiak (3):
>   arm64: dts: imx8mq-librem5-r4: Bump up proximity sensor's near level
>   arm64: dts: imx8mq-librem5: Mark tps65982 as wakeup source
>   arm64: dts: imx8mq-librem5: Reduce usdhc2's post-power-on-delay-ms to
>     20ms

Applied all, thanks!