* [PATCH v1 0/4] MT8195 Cherry: Enable PCIe/WiFi, add PWMs
@ 2023-02-23 14:54 AngeloGioacchino Del Regno
2023-02-23 14:54 ` [PATCH v1 1/4] arm64: dts: mediatek: cherry: Add platform thermal configuration AngeloGioacchino Del Regno
` (3 more replies)
0 siblings, 4 replies; 13+ messages in thread
From: AngeloGioacchino Del Regno @ 2023-02-23 14:54 UTC (permalink / raw)
To: matthias.bgg
Cc: robh+dt, krzysztof.kozlowski+dt, devicetree, linux-kernel,
linux-arm-kernel, linux-mediatek, AngeloGioacchino Del Regno
This series enables PCI-Express on MT8195 Cherry Tomato Chromebooks,
making it possible to use the MT7921E WiFi card on PCIe bus.
While at it, I've also added the missing hardware PWM nodes for
MT8195 and relevant nodes to get backlight support in all Cherry
devices for the internal display.
!! Please Note !!
This series applies on top of [1], [2] and [3], even though it does not
have any real dependencies on them.
[1]: https://patchwork.kernel.org/project/linux-mediatek/patch/20230209105628.50294-6-bchihi@baylibre.com/
[2]: https://patchwork.kernel.org/project/linux-mediatek/patch/20230209105628.50294-7-bchihi@baylibre.com/
[3]: https://patchwork.kernel.org/project/linux-mediatek/list/?series=724363
AngeloGioacchino Del Regno (4):
arm64: dts: mediatek: cherry: Add platform thermal configuration
arm64: dts: mediatek: cherry: Enable PCI-Express ports for WiFi
arm64: dts: mediatek: mt8195: Add display pwm nodes
arm64: dts: mediatek: cherry: Add configuration for display backlight
.../dts/mediatek/mt8195-cherry-tomato-r1.dts | 7 +
.../boot/dts/mediatek/mt8195-cherry.dtsi | 173 ++++++++++++++++++
arch/arm64/boot/dts/mediatek/mt8195.dtsi | 23 +++
3 files changed, 203 insertions(+)
--
2.39.2
^ permalink raw reply [flat|nested] 13+ messages in thread
* [PATCH v1 1/4] arm64: dts: mediatek: cherry: Add platform thermal configuration
2023-02-23 14:54 [PATCH v1 0/4] MT8195 Cherry: Enable PCIe/WiFi, add PWMs AngeloGioacchino Del Regno
@ 2023-02-23 14:54 ` AngeloGioacchino Del Regno
2023-02-24 9:19 ` Chen-Yu Tsai
2023-03-09 4:55 ` Chen-Yu Tsai
2023-02-23 14:54 ` [PATCH v1 2/4] arm64: dts: mediatek: cherry: Enable PCI-Express ports for WiFi AngeloGioacchino Del Regno
` (2 subsequent siblings)
3 siblings, 2 replies; 13+ messages in thread
From: AngeloGioacchino Del Regno @ 2023-02-23 14:54 UTC (permalink / raw)
To: matthias.bgg
Cc: robh+dt, krzysztof.kozlowski+dt, devicetree, linux-kernel,
linux-arm-kernel, linux-mediatek, AngeloGioacchino Del Regno
This platform has three auxiliary NTC thermistors, connected to the
SoC's ADC pins. Enable the auxadc in order to be able to read the
ADC values, add a generic-adc-thermal LUT for each and finally assign
them to the SoC's thermal zones.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
.../boot/dts/mediatek/mt8195-cherry.dtsi | 124 ++++++++++++++++++
1 file changed, 124 insertions(+)
diff --git a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
index 24669093fbed..ae2052a7160d 100644
--- a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
@@ -104,6 +104,108 @@ ppvar_sys: regulator-ppvar-sys {
regulator-boot-on;
};
+ tboard_thermistor1: thermal-sensor-t1 {
+ compatible = "generic-adc-thermal";
+ #thermal-sensor-cells = <0>;
+ io-channels = <&auxadc 0>;
+ io-channel-names = "sensor-channel";
+ temperature-lookup-table = < (-5000) 4241
+ 0 4063
+ 5000 3856
+ 10000 3621
+ 15000 3364
+ 20000 3091
+ 25000 2810
+ 30000 2526
+ 35000 2247
+ 40000 1982
+ 45000 1734
+ 50000 1507
+ 55000 1305
+ 60000 1122
+ 65000 964
+ 70000 827
+ 75000 710
+ 80000 606
+ 85000 519
+ 90000 445
+ 95000 382
+ 100000 330
+ 105000 284
+ 110000 245
+ 115000 213
+ 120000 183
+ 125000 161>;
+ };
+
+ tboard_thermistor2: thermal-sensor-t2 {
+ compatible = "generic-adc-thermal";
+ #thermal-sensor-cells = <0>;
+ io-channels = <&auxadc 0>;
+ io-channel-names = "sensor-channel";
+ temperature-lookup-table = < (-5000) 4241
+ 0 4063
+ 5000 3856
+ 10000 3621
+ 15000 3364
+ 20000 3091
+ 25000 2810
+ 30000 2526
+ 35000 2247
+ 40000 1982
+ 45000 1734
+ 50000 1507
+ 55000 1305
+ 60000 1122
+ 65000 964
+ 70000 827
+ 75000 710
+ 80000 606
+ 85000 519
+ 90000 445
+ 95000 382
+ 100000 330
+ 105000 284
+ 110000 245
+ 115000 213
+ 120000 183
+ 125000 161>;
+ };
+
+ tboard_thermistor3: thermal-sensor-t3 {
+ compatible = "generic-adc-thermal";
+ #thermal-sensor-cells = <0>;
+ io-channels = <&auxadc 0>;
+ io-channel-names = "sensor-channel";
+ temperature-lookup-table = < (-5000) 4241
+ 0 4063
+ 5000 3856
+ 10000 3621
+ 15000 3364
+ 20000 3091
+ 25000 2810
+ 30000 2526
+ 35000 2247
+ 40000 1982
+ 45000 1734
+ 50000 1507
+ 55000 1305
+ 60000 1122
+ 65000 964
+ 70000 827
+ 75000 710
+ 80000 606
+ 85000 519
+ 90000 445
+ 95000 382
+ 100000 330
+ 105000 284
+ 110000 245
+ 115000 213
+ 120000 183
+ 125000 161>;
+ };
+
usb_vbus: regulator-5v0-usb-vbus {
compatible = "regulator-fixed";
regulator-name = "usb-vbus";
@@ -243,6 +345,10 @@ &gpu {
mali-supply = <&mt6315_7_vbuck1>;
};
+&auxadc {
+ status = "okay";
+};
+
&i2c0 {
status = "okay";
@@ -1074,6 +1180,24 @@ mt6315_7_vbuck1: vbuck1 {
};
};
+&thermal_zones {
+ ap_ntc1 {
+ polling-delay = <1000>;
+ polling-delay-passive = <0>;
+ thermal-sensors = <&tboard_thermistor1>;
+ };
+ ap_ntc2 {
+ polling-delay = <1000>;
+ polling-delay-passive = <0>;
+ thermal-sensors = <&tboard_thermistor2>;
+ };
+ ap_ntc3 {
+ polling-delay = <1000>;
+ polling-delay-passive = <0>;
+ thermal-sensors = <&tboard_thermistor3>;
+ };
+};
+
&u3phy0 {
status = "okay";
};
--
2.39.2
^ permalink raw reply related [flat|nested] 13+ messages in thread
* [PATCH v1 2/4] arm64: dts: mediatek: cherry: Enable PCI-Express ports for WiFi
2023-02-23 14:54 [PATCH v1 0/4] MT8195 Cherry: Enable PCIe/WiFi, add PWMs AngeloGioacchino Del Regno
2023-02-23 14:54 ` [PATCH v1 1/4] arm64: dts: mediatek: cherry: Add platform thermal configuration AngeloGioacchino Del Regno
@ 2023-02-23 14:54 ` AngeloGioacchino Del Regno
2023-02-24 9:12 ` Chen-Yu Tsai
2023-02-23 14:54 ` [PATCH v1 3/4] arm64: dts: mediatek: mt8195: Add display pwm nodes AngeloGioacchino Del Regno
2023-02-23 14:54 ` [PATCH v1 4/4] arm64: dts: mediatek: cherry: Add configuration for display backlight AngeloGioacchino Del Regno
3 siblings, 1 reply; 13+ messages in thread
From: AngeloGioacchino Del Regno @ 2023-02-23 14:54 UTC (permalink / raw)
To: matthias.bgg
Cc: robh+dt, krzysztof.kozlowski+dt, devicetree, linux-kernel,
linux-arm-kernel, linux-mediatek, AngeloGioacchino Del Regno
On the Cherry platform, a MT7621 WiFi+Bluetooth combo is connected
over PCI-Express (for WiFi) and USB (for BT): enable the PCIe ports
to enable enumerating this chip.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
.../dts/mediatek/mt8195-cherry-tomato-r1.dts | 7 ++++++
.../boot/dts/mediatek/mt8195-cherry.dtsi | 25 +++++++++++++++++++
2 files changed, 32 insertions(+)
diff --git a/arch/arm64/boot/dts/mediatek/mt8195-cherry-tomato-r1.dts b/arch/arm64/boot/dts/mediatek/mt8195-cherry-tomato-r1.dts
index 2d5e8f371b6d..11fc83ddf236 100644
--- a/arch/arm64/boot/dts/mediatek/mt8195-cherry-tomato-r1.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8195-cherry-tomato-r1.dts
@@ -20,6 +20,13 @@ &sound {
model = "mt8195_r1019_5682";
};
+&pcie0 {
+ status = "okay";
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&pcie0_pins_default>;
+};
+
&ts_10 {
status = "okay";
};
diff --git a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
index ae2052a7160d..d679a04207d8 100644
--- a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
@@ -553,6 +553,13 @@ flash@0 {
};
};
+&pcie1 {
+ status = "okay";
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&pcie1_pins_default>;
+};
+
&pio {
mediatek,rsel-resistance-in-si-unit;
pinctrl-names = "default";
@@ -934,6 +941,24 @@ pins-cs {
};
};
+ pcie0_pins_default: pcie0-default-pins {
+ pins-bus {
+ pinmux = <PINMUX_GPIO19__FUNC_WAKEN>,
+ <PINMUX_GPIO20__FUNC_PERSTN>,
+ <PINMUX_GPIO21__FUNC_CLKREQN>;
+ bias-pull-up;
+ };
+ };
+
+ pcie1_pins_default: pcie1-default-pins {
+ pins-bus {
+ pinmux = <PINMUX_GPIO22__FUNC_PERSTN_1>,
+ <PINMUX_GPIO23__FUNC_CLKREQN_1>,
+ <PINMUX_GPIO24__FUNC_WAKEN_1>;
+ bias-pull-up;
+ };
+ };
+
pio_default: pio-default-pins {
pins-wifi-enable {
pinmux = <PINMUX_GPIO58__FUNC_GPIO58>;
--
2.39.2
^ permalink raw reply related [flat|nested] 13+ messages in thread
* [PATCH v1 3/4] arm64: dts: mediatek: mt8195: Add display pwm nodes
2023-02-23 14:54 [PATCH v1 0/4] MT8195 Cherry: Enable PCIe/WiFi, add PWMs AngeloGioacchino Del Regno
2023-02-23 14:54 ` [PATCH v1 1/4] arm64: dts: mediatek: cherry: Add platform thermal configuration AngeloGioacchino Del Regno
2023-02-23 14:54 ` [PATCH v1 2/4] arm64: dts: mediatek: cherry: Enable PCI-Express ports for WiFi AngeloGioacchino Del Regno
@ 2023-02-23 14:54 ` AngeloGioacchino Del Regno
2023-02-24 9:01 ` Chen-Yu Tsai
2023-02-23 14:54 ` [PATCH v1 4/4] arm64: dts: mediatek: cherry: Add configuration for display backlight AngeloGioacchino Del Regno
3 siblings, 1 reply; 13+ messages in thread
From: AngeloGioacchino Del Regno @ 2023-02-23 14:54 UTC (permalink / raw)
To: matthias.bgg
Cc: robh+dt, krzysztof.kozlowski+dt, devicetree, linux-kernel,
linux-arm-kernel, linux-mediatek, AngeloGioacchino Del Regno
Add the two hardware PWMs for display backlighting but keep them
disabled by default, as usage is board-specific.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
arch/arm64/boot/dts/mediatek/mt8195.dtsi | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/arch/arm64/boot/dts/mediatek/mt8195.dtsi b/arch/arm64/boot/dts/mediatek/mt8195.dtsi
index fecb41104193..c86c4b48dc3f 100644
--- a/arch/arm64/boot/dts/mediatek/mt8195.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8195.dtsi
@@ -1102,6 +1102,29 @@ lvts_ap: thermal-sensor@1100b000 {
#thermal-sensor-cells = <1>;
};
+ disp_pwm0: pwm@1100e000 {
+ compatible = "mediatek,mt8195-disp-pwm", "mediatek,mt8183-disp-pwm";
+ reg = <0 0x1100e000 0 0x1000>;
+ interrupts = <GIC_SPI 203 IRQ_TYPE_LEVEL_LOW 0>;
+ power-domains = <&spm MT8195_POWER_DOMAIN_VDOSYS0>;
+ #pwm-cells = <2>;
+ clocks = <&topckgen CLK_TOP_DISP_PWM0>,
+ <&infracfg_ao CLK_INFRA_AO_DISP_PWM>;
+ clock-names = "main", "mm";
+ status = "disabled";
+ };
+
+ disp_pwm1: pwm@1100f000 {
+ compatible = "mediatek,mt8195-disp-pwm", "mediatek,mt8183-disp-pwm";
+ reg = <0 0x1100f000 0 0x1000>;
+ interrupts = <GIC_SPI 793 IRQ_TYPE_LEVEL_HIGH 0>;
+ #pwm-cells = <2>;
+ clocks = <&topckgen CLK_TOP_DISP_PWM1>,
+ <&infracfg_ao CLK_INFRA_AO_DISP_PWM1>;
+ clock-names = "main", "mm";
+ status = "disabled";
+ };
+
spi1: spi@11010000 {
compatible = "mediatek,mt8195-spi",
"mediatek,mt6765-spi";
--
2.39.2
^ permalink raw reply related [flat|nested] 13+ messages in thread
* [PATCH v1 4/4] arm64: dts: mediatek: cherry: Add configuration for display backlight
2023-02-23 14:54 [PATCH v1 0/4] MT8195 Cherry: Enable PCIe/WiFi, add PWMs AngeloGioacchino Del Regno
` (2 preceding siblings ...)
2023-02-23 14:54 ` [PATCH v1 3/4] arm64: dts: mediatek: mt8195: Add display pwm nodes AngeloGioacchino Del Regno
@ 2023-02-23 14:54 ` AngeloGioacchino Del Regno
2023-02-24 8:52 ` Chen-Yu Tsai
3 siblings, 1 reply; 13+ messages in thread
From: AngeloGioacchino Del Regno @ 2023-02-23 14:54 UTC (permalink / raw)
To: matthias.bgg
Cc: robh+dt, krzysztof.kozlowski+dt, devicetree, linux-kernel,
linux-arm-kernel, linux-mediatek, AngeloGioacchino Del Regno
Configure the hardware PWM for the integrated display's backlight:
all Cherry devices enable the backlight with GPIO82 and manage the
PWM via MediaTek disp-pwm on GPIO97.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
.../boot/dts/mediatek/mt8195-cherry.dtsi | 24 +++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
index d679a04207d8..c50f1e2914b2 100644
--- a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
@@ -22,6 +22,16 @@ aliases {
serial0 = &uart0;
};
+ backlight_lcd0: backlight-lcd0 {
+ compatible = "pwm-backlight";
+ brightness-levels = <0 1023>;
+ default-brightness-level = <576>;
+ enable-gpios = <&pio 82 GPIO_ACTIVE_HIGH>;
+ num-interpolated-steps = <1023>;
+ pwms = <&disp_pwm0 0 500000>;
+ power-supply = <&ppvar_sys>;
+ };
+
chosen {
stdout-path = "serial0:115200n8";
};
@@ -349,6 +359,13 @@ &auxadc {
status = "okay";
};
+&disp_pwm0 {
+ status = "okay";
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&disp_pwm0_pin_default>;
+};
+
&i2c0 {
status = "okay";
@@ -773,6 +790,13 @@ pins-cmd-dat {
};
};
+ disp_pwm0_pin_default: disp-pwm0-default-pins {
+ pins-disp-pwm {
+ pinmux = <PINMUX_GPIO82__FUNC_GPIO82>,
+ <PINMUX_GPIO97__FUNC_DISP_PWM0>;
+ };
+ };
+
i2c0_pins: i2c0-default-pins {
pins-bus {
pinmux = <PINMUX_GPIO8__FUNC_SDA0>,
--
2.39.2
^ permalink raw reply related [flat|nested] 13+ messages in thread
* Re: [PATCH v1 4/4] arm64: dts: mediatek: cherry: Add configuration for display backlight
2023-02-23 14:54 ` [PATCH v1 4/4] arm64: dts: mediatek: cherry: Add configuration for display backlight AngeloGioacchino Del Regno
@ 2023-02-24 8:52 ` Chen-Yu Tsai
2023-03-31 6:44 ` Chen-Yu Tsai
0 siblings, 1 reply; 13+ messages in thread
From: Chen-Yu Tsai @ 2023-02-24 8:52 UTC (permalink / raw)
To: AngeloGioacchino Del Regno
Cc: matthias.bgg, robh+dt, krzysztof.kozlowski+dt, devicetree,
linux-kernel, linux-arm-kernel, linux-mediatek
On Thu, Feb 23, 2023 at 10:56 PM AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com> wrote:
>
> Configure the hardware PWM for the integrated display's backlight:
> all Cherry devices enable the backlight with GPIO82 and manage the
> PWM via MediaTek disp-pwm on GPIO97.
>
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Tested-by: Chen-Yu Tsai <wenst@chromium.org>
with some additional patches to enable the internal display.
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH v1 3/4] arm64: dts: mediatek: mt8195: Add display pwm nodes
2023-02-23 14:54 ` [PATCH v1 3/4] arm64: dts: mediatek: mt8195: Add display pwm nodes AngeloGioacchino Del Regno
@ 2023-02-24 9:01 ` Chen-Yu Tsai
2023-03-31 10:39 ` Matthias Brugger
0 siblings, 1 reply; 13+ messages in thread
From: Chen-Yu Tsai @ 2023-02-24 9:01 UTC (permalink / raw)
To: AngeloGioacchino Del Regno
Cc: matthias.bgg, robh+dt, krzysztof.kozlowski+dt, devicetree,
linux-kernel, linux-arm-kernel, linux-mediatek
On Thu, Feb 23, 2023 at 10:56 PM AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com> wrote:
>
> Add the two hardware PWMs for display backlighting but keep them
> disabled by default, as usage is board-specific.
>
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
and
Tested-by: Chen-Yu Tsai <wenst@chromium.org>
for disp_pwm0
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH v1 2/4] arm64: dts: mediatek: cherry: Enable PCI-Express ports for WiFi
2023-02-23 14:54 ` [PATCH v1 2/4] arm64: dts: mediatek: cherry: Enable PCI-Express ports for WiFi AngeloGioacchino Del Regno
@ 2023-02-24 9:12 ` Chen-Yu Tsai
0 siblings, 0 replies; 13+ messages in thread
From: Chen-Yu Tsai @ 2023-02-24 9:12 UTC (permalink / raw)
To: AngeloGioacchino Del Regno
Cc: matthias.bgg, robh+dt, krzysztof.kozlowski+dt, devicetree,
linux-kernel, linux-arm-kernel, linux-mediatek
On Thu, Feb 23, 2023 at 10:55 PM AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com> wrote:
>
> On the Cherry platform, a MT7621 WiFi+Bluetooth combo is connected
> over PCI-Express (for WiFi) and USB (for BT): enable the PCIe ports
> to enable enumerating this chip.
>
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
> ---
> .../dts/mediatek/mt8195-cherry-tomato-r1.dts | 7 ++++++
For pcie0 in tomato-r1, this is not used for WiFi. This was only used in
the earliest version for NVMe. It was subsequently removed. Please add it in
a separate patch.
> .../boot/dts/mediatek/mt8195-cherry.dtsi | 25 +++++++++++++++++++
For pcie1 in Cherry:
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Tested-by: Chen-Yu Tsai <wenst@chromium.org>
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH v1 1/4] arm64: dts: mediatek: cherry: Add platform thermal configuration
2023-02-23 14:54 ` [PATCH v1 1/4] arm64: dts: mediatek: cherry: Add platform thermal configuration AngeloGioacchino Del Regno
@ 2023-02-24 9:19 ` Chen-Yu Tsai
2023-03-09 4:55 ` Chen-Yu Tsai
1 sibling, 0 replies; 13+ messages in thread
From: Chen-Yu Tsai @ 2023-02-24 9:19 UTC (permalink / raw)
To: AngeloGioacchino Del Regno
Cc: matthias.bgg, robh+dt, krzysztof.kozlowski+dt, devicetree,
linux-kernel, linux-arm-kernel, linux-mediatek
On Thu, Feb 23, 2023 at 10:55 PM AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com> wrote:
>
> This platform has three auxiliary NTC thermistors, connected to the
> SoC's ADC pins. Enable the auxadc in order to be able to read the
> ADC values, add a generic-adc-thermal LUT for each and finally assign
> them to the SoC's thermal zones.
>
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
> ---
> .../boot/dts/mediatek/mt8195-cherry.dtsi | 124 ++++++++++++++++++
> 1 file changed, 124 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
> index 24669093fbed..ae2052a7160d 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
> @@ -104,6 +104,108 @@ ppvar_sys: regulator-ppvar-sys {
> regulator-boot-on;
> };
>
> + tboard_thermistor1: thermal-sensor-t1 {
> + compatible = "generic-adc-thermal";
> + #thermal-sensor-cells = <0>;
> + io-channels = <&auxadc 0>;
> + io-channel-names = "sensor-channel";
> + temperature-lookup-table = < (-5000) 4241
> + 0 4063
> + 5000 3856
> + 10000 3621
> + 15000 3364
> + 20000 3091
> + 25000 2810
> + 30000 2526
> + 35000 2247
> + 40000 1982
> + 45000 1734
> + 50000 1507
> + 55000 1305
> + 60000 1122
> + 65000 964
> + 70000 827
> + 75000 710
> + 80000 606
> + 85000 519
> + 90000 445
> + 95000 382
> + 100000 330
> + 105000 284
> + 110000 245
> + 115000 213
> + 120000 183
> + 125000 161>;
> + };
> +
> + tboard_thermistor2: thermal-sensor-t2 {
> + compatible = "generic-adc-thermal";
> + #thermal-sensor-cells = <0>;
> + io-channels = <&auxadc 0>;
> + io-channel-names = "sensor-channel";
> + temperature-lookup-table = < (-5000) 4241
> + 0 4063
> + 5000 3856
> + 10000 3621
> + 15000 3364
> + 20000 3091
> + 25000 2810
> + 30000 2526
> + 35000 2247
> + 40000 1982
> + 45000 1734
> + 50000 1507
> + 55000 1305
> + 60000 1122
> + 65000 964
> + 70000 827
> + 75000 710
> + 80000 606
> + 85000 519
> + 90000 445
> + 95000 382
> + 100000 330
> + 105000 284
> + 110000 245
> + 115000 213
> + 120000 183
> + 125000 161>;
> + };
> +
> + tboard_thermistor3: thermal-sensor-t3 {
> + compatible = "generic-adc-thermal";
> + #thermal-sensor-cells = <0>;
> + io-channels = <&auxadc 0>;
> + io-channel-names = "sensor-channel";
> + temperature-lookup-table = < (-5000) 4241
> + 0 4063
> + 5000 3856
> + 10000 3621
> + 15000 3364
> + 20000 3091
> + 25000 2810
> + 30000 2526
> + 35000 2247
> + 40000 1982
> + 45000 1734
> + 50000 1507
> + 55000 1305
> + 60000 1122
> + 65000 964
> + 70000 827
> + 75000 710
> + 80000 606
> + 85000 519
> + 90000 445
> + 95000 382
> + 100000 330
> + 105000 284
> + 110000 245
> + 115000 213
> + 120000 183
> + 125000 161>;
> + };
> +
> usb_vbus: regulator-5v0-usb-vbus {
> compatible = "regulator-fixed";
> regulator-name = "usb-vbus";
> @@ -243,6 +345,10 @@ &gpu {
> mali-supply = <&mt6315_7_vbuck1>;
> };
>
> +&auxadc {
> + status = "okay";
> +};
> +
> &i2c0 {
> status = "okay";
>
> @@ -1074,6 +1180,24 @@ mt6315_7_vbuck1: vbuck1 {
> };
> };
>
> +&thermal_zones {
> + ap_ntc1 {
> + polling-delay = <1000>;
> + polling-delay-passive = <0>;
> + thermal-sensors = <&tboard_thermistor1>;
Without trip points, this doesn't satisfy the bindings, nor does the
driver probe.
> + };
> + ap_ntc2 {
> + polling-delay = <1000>;
> + polling-delay-passive = <0>;
> + thermal-sensors = <&tboard_thermistor2>;
> + };
> + ap_ntc3 {
> + polling-delay = <1000>;
> + polling-delay-passive = <0>;
> + thermal-sensors = <&tboard_thermistor3>;
> + };
> +};
> +
> &u3phy0 {
> status = "okay";
> };
> --
> 2.39.2
>
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH v1 1/4] arm64: dts: mediatek: cherry: Add platform thermal configuration
2023-02-23 14:54 ` [PATCH v1 1/4] arm64: dts: mediatek: cherry: Add platform thermal configuration AngeloGioacchino Del Regno
2023-02-24 9:19 ` Chen-Yu Tsai
@ 2023-03-09 4:55 ` Chen-Yu Tsai
1 sibling, 0 replies; 13+ messages in thread
From: Chen-Yu Tsai @ 2023-03-09 4:55 UTC (permalink / raw)
To: AngeloGioacchino Del Regno
Cc: matthias.bgg, robh+dt, krzysztof.kozlowski+dt, devicetree,
linux-kernel, linux-arm-kernel, linux-mediatek
On Thu, Feb 23, 2023 at 10:55 PM AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com> wrote:
>
> This platform has three auxiliary NTC thermistors, connected to the
> SoC's ADC pins. Enable the auxadc in order to be able to read the
> ADC values, add a generic-adc-thermal LUT for each and finally assign
> them to the SoC's thermal zones.
>
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
> ---
> .../boot/dts/mediatek/mt8195-cherry.dtsi | 124 ++++++++++++++++++
> 1 file changed, 124 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
> index 24669093fbed..ae2052a7160d 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
> @@ -104,6 +104,108 @@ ppvar_sys: regulator-ppvar-sys {
> regulator-boot-on;
> };
>
> + tboard_thermistor1: thermal-sensor-t1 {
> + compatible = "generic-adc-thermal";
> + #thermal-sensor-cells = <0>;
> + io-channels = <&auxadc 0>;
> + io-channel-names = "sensor-channel";
> + temperature-lookup-table = < (-5000) 4241
> + 0 4063
> + 5000 3856
> + 10000 3621
> + 15000 3364
> + 20000 3091
> + 25000 2810
> + 30000 2526
> + 35000 2247
> + 40000 1982
> + 45000 1734
> + 50000 1507
> + 55000 1305
> + 60000 1122
> + 65000 964
> + 70000 827
> + 75000 710
> + 80000 606
> + 85000 519
> + 90000 445
> + 95000 382
> + 100000 330
> + 105000 284
> + 110000 245
> + 115000 213
> + 120000 183
> + 125000 161>;
> + };
> +
> + tboard_thermistor2: thermal-sensor-t2 {
> + compatible = "generic-adc-thermal";
> + #thermal-sensor-cells = <0>;
> + io-channels = <&auxadc 0>;
You are reusing the same channel for all three sensors. That doesn't
make a lot of sense.
Furthermore, the design only has two thermistors, connected to the first
two ADC channels. The first one is located near the SoC; the second one
is near the PMIC.
ChenYu
> + io-channel-names = "sensor-channel";
> + temperature-lookup-table = < (-5000) 4241
> + 0 4063
> + 5000 3856
> + 10000 3621
> + 15000 3364
> + 20000 3091
> + 25000 2810
> + 30000 2526
> + 35000 2247
> + 40000 1982
> + 45000 1734
> + 50000 1507
> + 55000 1305
> + 60000 1122
> + 65000 964
> + 70000 827
> + 75000 710
> + 80000 606
> + 85000 519
> + 90000 445
> + 95000 382
> + 100000 330
> + 105000 284
> + 110000 245
> + 115000 213
> + 120000 183
> + 125000 161>;
> + };
> +
> + tboard_thermistor3: thermal-sensor-t3 {
> + compatible = "generic-adc-thermal";
> + #thermal-sensor-cells = <0>;
> + io-channels = <&auxadc 0>;
> + io-channel-names = "sensor-channel";
> + temperature-lookup-table = < (-5000) 4241
> + 0 4063
> + 5000 3856
> + 10000 3621
> + 15000 3364
> + 20000 3091
> + 25000 2810
> + 30000 2526
> + 35000 2247
> + 40000 1982
> + 45000 1734
> + 50000 1507
> + 55000 1305
> + 60000 1122
> + 65000 964
> + 70000 827
> + 75000 710
> + 80000 606
> + 85000 519
> + 90000 445
> + 95000 382
> + 100000 330
> + 105000 284
> + 110000 245
> + 115000 213
> + 120000 183
> + 125000 161>;
> + };
> +
> usb_vbus: regulator-5v0-usb-vbus {
> compatible = "regulator-fixed";
> regulator-name = "usb-vbus";
> @@ -243,6 +345,10 @@ &gpu {
> mali-supply = <&mt6315_7_vbuck1>;
> };
>
> +&auxadc {
> + status = "okay";
> +};
> +
> &i2c0 {
> status = "okay";
>
> @@ -1074,6 +1180,24 @@ mt6315_7_vbuck1: vbuck1 {
> };
> };
>
> +&thermal_zones {
> + ap_ntc1 {
> + polling-delay = <1000>;
> + polling-delay-passive = <0>;
> + thermal-sensors = <&tboard_thermistor1>;
> + };
> + ap_ntc2 {
> + polling-delay = <1000>;
> + polling-delay-passive = <0>;
> + thermal-sensors = <&tboard_thermistor2>;
> + };
> + ap_ntc3 {
> + polling-delay = <1000>;
> + polling-delay-passive = <0>;
> + thermal-sensors = <&tboard_thermistor3>;
> + };
> +};
> +
> &u3phy0 {
> status = "okay";
> };
> --
> 2.39.2
>
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH v1 4/4] arm64: dts: mediatek: cherry: Add configuration for display backlight
2023-02-24 8:52 ` Chen-Yu Tsai
@ 2023-03-31 6:44 ` Chen-Yu Tsai
2023-03-31 10:45 ` Matthias Brugger
0 siblings, 1 reply; 13+ messages in thread
From: Chen-Yu Tsai @ 2023-03-31 6:44 UTC (permalink / raw)
To: matthias.bgg
Cc: AngeloGioacchino Del Regno, robh+dt, krzysztof.kozlowski+dt,
devicetree, linux-kernel, linux-arm-kernel, linux-mediatek
On Fri, Feb 24, 2023 at 4:52 PM Chen-Yu Tsai <wenst@chromium.org> wrote:
>
> On Thu, Feb 23, 2023 at 10:56 PM AngeloGioacchino Del Regno
> <angelogioacchino.delregno@collabora.com> wrote:
> >
> > Configure the hardware PWM for the integrated display's backlight:
> > all Cherry devices enable the backlight with GPIO82 and manage the
> > PWM via MediaTek disp-pwm on GPIO97.
> >
> > Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
>
> Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
> Tested-by: Chen-Yu Tsai <wenst@chromium.org>
>
> with some additional patches to enable the internal display.
Matthias, could you pick up patches 3 and 4 from this series? They are
independent of the other two patches. Having them picked up would reduce
the number of patches that have to get carried for testing and resent.
Thanks
ChenYu
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH v1 3/4] arm64: dts: mediatek: mt8195: Add display pwm nodes
2023-02-24 9:01 ` Chen-Yu Tsai
@ 2023-03-31 10:39 ` Matthias Brugger
0 siblings, 0 replies; 13+ messages in thread
From: Matthias Brugger @ 2023-03-31 10:39 UTC (permalink / raw)
To: Chen-Yu Tsai, AngeloGioacchino Del Regno
Cc: robh+dt, krzysztof.kozlowski+dt, devicetree, linux-kernel,
linux-arm-kernel, linux-mediatek
On 24/02/2023 10:01, Chen-Yu Tsai wrote:
> On Thu, Feb 23, 2023 at 10:56 PM AngeloGioacchino Del Regno
> <angelogioacchino.delregno@collabora.com> wrote:
>>
>> Add the two hardware PWMs for display backlighting but keep them
>> disabled by default, as usage is board-specific.
>>
>> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
>
> Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
>
> and
>
> Tested-by: Chen-Yu Tsai <wenst@chromium.org>
>
> for disp_pwm0
Applied, thanks!
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH v1 4/4] arm64: dts: mediatek: cherry: Add configuration for display backlight
2023-03-31 6:44 ` Chen-Yu Tsai
@ 2023-03-31 10:45 ` Matthias Brugger
0 siblings, 0 replies; 13+ messages in thread
From: Matthias Brugger @ 2023-03-31 10:45 UTC (permalink / raw)
To: Chen-Yu Tsai
Cc: AngeloGioacchino Del Regno, robh+dt, krzysztof.kozlowski+dt,
devicetree, linux-kernel, linux-arm-kernel, linux-mediatek
On 31/03/2023 08:44, Chen-Yu Tsai wrote:
> On Fri, Feb 24, 2023 at 4:52 PM Chen-Yu Tsai <wenst@chromium.org> wrote:
>>
>> On Thu, Feb 23, 2023 at 10:56 PM AngeloGioacchino Del Regno
>> <angelogioacchino.delregno@collabora.com> wrote:
>>>
>>> Configure the hardware PWM for the integrated display's backlight:
>>> all Cherry devices enable the backlight with GPIO82 and manage the
>>> PWM via MediaTek disp-pwm on GPIO97.
>>>
>>> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
>>
>> Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
>> Tested-by: Chen-Yu Tsai <wenst@chromium.org>
>>
>> with some additional patches to enable the internal display.
>
> Matthias, could you pick up patches 3 and 4 from this series? They are
> independent of the other two patches. Having them picked up would reduce
> the number of patches that have to get carried for testing and resent.
>
Applied, thanks!
^ permalink raw reply [flat|nested] 13+ messages in thread
end of thread, other threads:[~2023-03-31 10:45 UTC | newest]
Thread overview: 13+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-02-23 14:54 [PATCH v1 0/4] MT8195 Cherry: Enable PCIe/WiFi, add PWMs AngeloGioacchino Del Regno
2023-02-23 14:54 ` [PATCH v1 1/4] arm64: dts: mediatek: cherry: Add platform thermal configuration AngeloGioacchino Del Regno
2023-02-24 9:19 ` Chen-Yu Tsai
2023-03-09 4:55 ` Chen-Yu Tsai
2023-02-23 14:54 ` [PATCH v1 2/4] arm64: dts: mediatek: cherry: Enable PCI-Express ports for WiFi AngeloGioacchino Del Regno
2023-02-24 9:12 ` Chen-Yu Tsai
2023-02-23 14:54 ` [PATCH v1 3/4] arm64: dts: mediatek: mt8195: Add display pwm nodes AngeloGioacchino Del Regno
2023-02-24 9:01 ` Chen-Yu Tsai
2023-03-31 10:39 ` Matthias Brugger
2023-02-23 14:54 ` [PATCH v1 4/4] arm64: dts: mediatek: cherry: Add configuration for display backlight AngeloGioacchino Del Regno
2023-02-24 8:52 ` Chen-Yu Tsai
2023-03-31 6:44 ` Chen-Yu Tsai
2023-03-31 10:45 ` Matthias Brugger
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