This patchset adds support for the LCD panel of PinePhone.
I've tested this on PinePhone 1.0 and 1.2.
Please take a look.
thank you and regards,
Ondrej Jirman
Changes in v8:
- Drop goodix,gt911 fallback compatible (Icenowy)
- Drop address/size-cells from &dsi node (Maxime)
- Drop already applied patches
- v7->v8 diff: https://megous.com/dl/tmp/v7-v8.patch
Changes in v7:
- Removed mode.vrefresh, rebased onto next-20200701
- v6->v7 diff: https://megous.com/dl/tmp/v6-v7.patch
Changes in v6:
- Fixed spacing in yaml
- Fixed wrong vccio->iovcc supply name in the bindings doc
- I noticed that the original driver uses a delay of 20ms in the init
function to achieve a combined total of 120ms required from post-reset
to display_on. I've added a similar delay to xbd599_init, so that
xbd599 panel also has the right timing. (patch 9)
- v5->v6 diff: https://megous.com/dl/tmp/v5-v6.patch
- Added review/ack tags
- Learned to run dt_binding_check by myself ;)
Changes in v5:
- rewritten on top of rocktech-jh057n00900 driver
- rocktech-jh057n00900 renamed to st7703 (controller name)
- converted rocktech-jh057n00900 bindings to yaml and extended for xbd599
Changes in v4:
- use ->type from the mode instead of hardcoding (Samuel)
- move init_sequence to ->prepare (Samuel)
- move anti-flicker delay to ->enable, explain it (Samuel)
- add enter_sleep after display_off (Samuel)
- drop ->disable (move code to ->unprepare)
- add ID bytes dumping (Linus)
(I can't test it since allwinner DSI driver has a broken
dcs_read function, and I didn't manage to fix it.)
- document magic bytes (Linus)
- assert reset during powerup
- cleanup powerup timings according to the datasheet
Changes in v3:
- Panel driver renamed to the name of the LCD controller
- Re-organize the driver slightly to more easily support more panels
based on the same controller.
- Add patch to enable the touchscreen to complete the LCD support
on PinePhone.
- Dropped the "DSI fix" patch (the driver seems to work for me without it)
- Improved brightness levels handling:
- PinePhone 1.0 uses default levels generated by the driver
- On PinePhone 1.1 duty cycles < 20% lead to black screen, so
default levels can't be used. Martijn Braam came up with a
list of duty cycle values that lead to perception of linear
brigtness level <-> light intensity on PinePhone 1.1
- There was some feedback on v2 about this being similar to st7701.
It's only similar in name. Most of the "user commands" are different,
so I opted to keep this in a new driver instead of creating st770x.
Anyone who likes to check the differences, here are datasheets:
- https://megous.com/dl/tmp/ST7703_DS_v01_20160128.pdf
- https://megous.com/dl/tmp/ST7701.pdf
Changes in v2:
- DT Example fix.
- DT Format fix.
- Raised copyright info to 2020.
- Sort panel operation functions.
- Sort inclusion.
-- For phone owners: --
There's an open question on how to set the backlight brightness values
on post 1.0 revision phone, since lower duty cycles (< 10-20%) lead
to backlight being black. It would be nice if more people can test
the various backlight levels on 1.1 and 1.2 revision with this change
in dts:
brightness-levels = <0 1000>;
num-interpolated-steps = <1000>;
and report at what brightness level the backlight turns on. So far it
seems this has a wide range. Lowest useable duty cycle for me is ~7%
on 1.2 and for Martijn ~20% on 1.1.
Icenowy Zheng (1):
arm64: dts: sun50i-a64-pinephone: Enable LCD support on PinePhone
Ondrej Jirman (1):
arm64: dts: sun50i-a64-pinephone: Add touchscreen support
.../allwinner/sun50i-a64-pinephone-1.1.dts | 19 +++++++
.../dts/allwinner/sun50i-a64-pinephone.dtsi | 52 +++++++++++++++++++
2 files changed, 71 insertions(+)
--
2.27.0
From: Icenowy Zheng <[email protected]>
PinePhone uses PWM backlight and a XBD599 LCD panel over DSI for
display.
Backlight levels curve was optimized by Martijn Braam using a
lux meter.
Add its device nodes.
Signed-off-by: Icenowy Zheng <[email protected]>
Signed-off-by: Martijn Braam <[email protected]>
Signed-off-by: Ondrej Jirman <[email protected]>
Acked-by: Linus Walleij <[email protected]>
---
.../allwinner/sun50i-a64-pinephone-1.1.dts | 19 +++++++++++
.../dts/allwinner/sun50i-a64-pinephone.dtsi | 33 +++++++++++++++++++
2 files changed, 52 insertions(+)
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.1.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.1.dts
index 06a775c41664..3e99a87e9ce5 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.1.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.1.dts
@@ -9,3 +9,22 @@ / {
model = "Pine64 PinePhone Braveheart (1.1)";
compatible = "pine64,pinephone-1.1", "allwinner,sun50i-a64";
};
+
+&backlight {
+ power-supply = <®_ldo_io0>;
+ /*
+ * PWM backlight circuit on this PinePhone revision was changed since
+ * 1.0, and the lowest PWM duty cycle that doesn't lead to backlight
+ * being off is around 20%. Duty cycle for the lowest brightness level
+ * also varries quite a bit between individual boards, so the lowest
+ * value here was chosen as a safe default.
+ */
+ brightness-levels = <
+ 774 793 814 842
+ 882 935 1003 1088
+ 1192 1316 1462 1633
+ 1830 2054 2309 2596
+ 2916 3271 3664 4096>;
+ num-interpolated-steps = <50>;
+ default-brightness-level = <400>;
+};
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi
index cefda145c3c9..a89425ad3727 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi
@@ -16,6 +16,13 @@ aliases {
serial0 = &uart0;
};
+ backlight: backlight {
+ compatible = "pwm-backlight";
+ pwms = <&r_pwm 0 50000 PWM_POLARITY_INVERTED>;
+ enable-gpios = <&pio 7 10 GPIO_ACTIVE_HIGH>; /* PH10 */
+ /* Backlight configuration differs per PinePhone revision. */
+ };
+
chosen {
stdout-path = "serial0:115200n8";
};
@@ -84,6 +91,28 @@ &dai {
status = "okay";
};
+&de {
+ status = "okay";
+};
+
+&dphy {
+ status = "okay";
+};
+
+&dsi {
+ vcc-dsi-supply = <®_dldo1>;
+ status = "okay";
+
+ panel@0 {
+ compatible = "xingbangda,xbd599";
+ reg = <0>;
+ reset-gpios = <&pio 3 23 GPIO_ACTIVE_LOW>; /* PD23 */
+ iovcc-supply = <®_dldo2>;
+ vcc-supply = <®_ldo_io0>;
+ backlight = <&backlight>;
+ };
+};
+
&ehci0 {
status = "okay";
};
@@ -188,6 +217,10 @@ &r_pio {
*/
};
+&r_pwm {
+ status = "okay";
+};
+
&r_rsb {
status = "okay";
--
2.27.0
Pinephone has a Goodix GT917S capacitive touchscreen controller on
I2C0 bus. Add support for it.
Signed-off-by: Ondrej Jirman <[email protected]>
Acked-by: Linus Walleij <[email protected]>
---
.../dts/allwinner/sun50i-a64-pinephone.dtsi | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi
index a89425ad3727..5c7386566053 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi
@@ -121,6 +121,25 @@ &ehci1 {
status = "okay";
};
+&i2c0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c0_pins>;
+ status = "okay";
+
+ touchscreen@5d {
+ compatible = "goodix,gt917s";
+ reg = <0x5d>;
+ interrupt-parent = <&pio>;
+ interrupts = <7 4 IRQ_TYPE_LEVEL_HIGH>; /* PH4 */
+ irq-gpios = <&pio 7 4 GPIO_ACTIVE_HIGH>; /* PH4 */
+ reset-gpios = <&pio 7 11 GPIO_ACTIVE_HIGH>; /* PH11 */
+ AVDD28-supply = <®_ldo_io0>;
+ VDDIO-supply = <®_ldo_io0>;
+ touchscreen-size-x = <720>;
+ touchscreen-size-y = <1440>;
+ };
+};
+
&i2c1 {
status = "okay";
--
2.27.0
Hi,
On Thu, Jul 02, 2020 at 10:14:32AM +0200, Ondrej Jirman wrote:
> Pinephone has a Goodix GT917S capacitive touchscreen controller on
> I2C0 bus. Add support for it.
>
> Signed-off-by: Ondrej Jirman <[email protected]>
> Acked-by: Linus Walleij <[email protected]>
> ---
> .../dts/allwinner/sun50i-a64-pinephone.dtsi | 19 +++++++++++++++++++
> 1 file changed, 19 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi
> index a89425ad3727..5c7386566053 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi
> @@ -121,6 +121,25 @@ &ehci1 {
> status = "okay";
> };
>
> +&i2c0 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&i2c0_pins>;
> + status = "okay";
I didn't spot this earlier, but the pinctrl properties are already set
in the DTSI. I've removed them while applying the patch.
Thanks!
Maxime
On Fri, Jul 03, 2020 at 02:17:06PM +0200, Maxime Ripard wrote:
> Hi,
>
> On Thu, Jul 02, 2020 at 10:14:32AM +0200, Ondrej Jirman wrote:
> > Pinephone has a Goodix GT917S capacitive touchscreen controller on
> > I2C0 bus. Add support for it.
> >
> > Signed-off-by: Ondrej Jirman <[email protected]>
> > Acked-by: Linus Walleij <[email protected]>
> > ---
> > .../dts/allwinner/sun50i-a64-pinephone.dtsi | 19 +++++++++++++++++++
> > 1 file changed, 19 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi
> > index a89425ad3727..5c7386566053 100644
> > --- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi
> > +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi
> > @@ -121,6 +121,25 @@ &ehci1 {
> > status = "okay";
> > };
> >
> > +&i2c0 {
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&i2c0_pins>;
> > + status = "okay";
>
> I didn't spot this earlier, but the pinctrl properties are already set
> in the DTSI. I've removed them while applying the patch.
Ah, right. Thank you very much. :)
regards,
o.
> Thanks!
> Maxime