[PATCH 0/4] small Librem 5 phone dts updates

[PATCH 0/4] small Librem 5 phone dts updates

[Martin Kepplinger]

Some minor updates for the current hardware descriptions:

Martin Kepplinger (4):
  arm64: dts: imx8mq-librem5: add vin-supply to VDD_1V8
  arm64: dts: imx8mq-librem5: add pinctrl for the touchscreen
    description
  arm64: dts: imx8mq-librem5: Move usdhc clocks assignment to board DT
  arm64: dts: imx8mq-librem5-r3: workaround i2c1 issue with 1GHz cpu
    voltage

 .../boot/dts/freescale/imx8mq-librem5-r3.dts  |  6 ++++
 .../boot/dts/freescale/imx8mq-librem5.dtsi    | 28 ++++++++++++++-----
 2 files changed, 27 insertions(+), 7 deletions(-)

-- 
2.20.1

[PATCH 1/4] arm64: dts: imx8mq-librem5: add vin-supply to VDD_1V8

[Martin Kepplinger]

buck7 is the supply here. Also, fix alphabetical ordering.

Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
---
 arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
index 64fc546b110f..55268fc0622e 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
@@ -99,6 +99,14 @@
 		regulator-max-microvolt = <3300000>;
 	};
 
+	reg_vdd_1v8: regulator-vdd-1v8 {
+		compatible = "regulator-fixed";
+		regulator-name = "VDD_1V8";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		vin-supply = <&buck7_reg>;
+	};
+
 	reg_vdd_3v3: regulator-vdd-3v3 {
 		compatible = "regulator-fixed";
 		regulator-name = "VDD_3V3";
@@ -106,13 +114,6 @@
 		regulator-max-microvolt = <3300000>;
 	};
 
-	reg_vdd_1v8: regulator-vdd-1v8 {
-		compatible = "regulator-fixed";
-		regulator-name = "VCC_1V8";
-		regulator-min-microvolt = <1800000>;
-		regulator-max-microvolt = <1800000>;
-	};
-
 	reg_vsys_3v4: regulator-vsys-3v4 {
 		compatible = "regulator-fixed";
 		regulator-name = "VSYS_3V4";
-- 
2.20.1

[PATCH 2/4] arm64: dts: imx8mq-librem5: add pinctrl for the touchscreen description

[Martin Kepplinger]

Add the pinctrl description for the interrupt.

Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
---
 arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
index 55268fc0622e..a60df09d90f7 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
@@ -459,6 +459,13 @@
 		>;
 	};
 
+	pinctrl_touch: touchgrp {
+		fsl,pins = <
+		/* TP_INT */
+		MX8MQ_IOMUXC_ENET_RD1_GPIO1_IO27	0x80
+		>;
+	};
+
 	pinctrl_typec: typecgrp {
 		fsl,pins = <
 			/* TYPEC_MUX_EN */
@@ -880,6 +887,8 @@
 	touchscreen@38 {
 		compatible = "edt,edt-ft5506";
 		reg = <0x38>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_touch>;
 		interrupt-parent = <&gpio1>;
 		interrupts = <27 IRQ_TYPE_EDGE_FALLING>;
 		touchscreen-size-x = <720>;
-- 
2.20.1

Re: [PATCH 2/4] arm64: dts: imx8mq-librem5: add pinctrl for the touchscreen description

[Krzysztof Kozlowski]

On Fri, Dec 18, 2020 at 11:31:29AM +0100, Martin Kepplinger wrote:
> Add the pinctrl description for the interrupt.

Please describe why do you need to add it. From the patch contents I
easily see what you are doing. But neither the commit title nor the
message describe what you want to achieve (why are you doing it).

Best regards,
Krzysztof

[PATCH 3/4] arm64: dts: imx8mq-librem5: Move usdhc clocks assignment to board DT

[Martin Kepplinger]

According to commit e045f044e84e ("arm64: dts: imx8mq: Move usdhc clocks
assignment to board DT") add the clocks assignment to imx8mq-librem5.dtsi
too.

Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
---
 arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
index a60df09d90f7..47e70ba4e4f1 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
@@ -1082,6 +1082,8 @@
 };
 
 &usdhc1 {
+	assigned-clocks = <&clk IMX8MQ_CLK_USDHC1>;
+	assigned-clock-rates = <400000000>;
 	pinctrl-names = "default", "state_100mhz", "state_200mhz";
 	pinctrl-0 = <&pinctrl_usdhc1>;
 	pinctrl-1 = <&pinctrl_usdhc1_100mhz>;
@@ -1094,6 +1096,8 @@
 };
 
 &usdhc2 {
+	assigned-clocks = <&clk IMX8MQ_CLK_USDHC2>;
+	assigned-clock-rates = <200000000>;
 	pinctrl-names = "default", "state_100mhz", "state_200mhz";
 	pinctrl-0 = <&pinctrl_usdhc2>;
 	pinctrl-1 = <&pinctrl_usdhc2_100mhz>;
-- 
2.20.1

Re: [PATCH 3/4] arm64: dts: imx8mq-librem5: Move usdhc clocks assignment to board DT

[Krzysztof Kozlowski]

On Fri, Dec 18, 2020 at 11:31:30AM +0100, Martin Kepplinger wrote:
> According to commit e045f044e84e ("arm64: dts: imx8mq: Move usdhc clocks
> assignment to board DT") add the clocks assignment to imx8mq-librem5.dtsi
> too.
> 
> Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>

This should go with Fixes tag as well.

Best regards,
Krzysztof

[PATCH 4/4] arm64: dts: imx8mq-librem5-r3: workaround i2c1 issue with 1GHz cpu voltage

[Martin Kepplinger]

This is a workaround for a hardware bug in the r3 revision that basically would
stop the system due to traffic on the i2c1 bus. A cpu voltage change would
trigger such traffic and that's what is avoided in order to work around it.

Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
---
 arch/arm64/boot/dts/freescale/imx8mq-librem5-r3.dts | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5-r3.dts b/arch/arm64/boot/dts/freescale/imx8mq-librem5-r3.dts
index 6704ea2c72a3..0d38327043f8 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-librem5-r3.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5-r3.dts
@@ -10,6 +10,12 @@
 	compatible = "purism,librem5r3", "purism,librem5", "fsl,imx8mq";
 };
 
+&a53_opp_table {
+	opp-1000000000 {
+		opp-microvolt = <1000000>;
+	};
+};
+
 &accel_gyro {
 	mount-matrix =  "1",  "0",  "0",
 			"0",  "1",  "0",
-- 
2.20.1