mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 11:18:45 +07:00
6233269bce
Use interpolated brightness tables (added by commit 573fe6d1c2
("backlight: pwm_bl: Linear interpolation between
brightness-levels") for veyron, instead of specifying every single
step. Some devices/panels have intervals that are smaller than
the specified 'num-interpolated-steps', the driver interprets
these intervals as a single step.
Another option would be to switch to a perceptual brightness curve
(CIE 1931), with the caveat that it would change the behavior of
the backlight. Also the concept of a minimum brightness level is
currently not supported for CIE 1931 curves.
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20191003094137.v2.1.Ic9fd698810ea569c465350154da40b85d24f805b@changeid
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
88 lines
1.8 KiB
Plaintext
88 lines
1.8 KiB
Plaintext
// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
|
|
/*
|
|
* Google Veyron Tiger Rev 0+ board device tree source
|
|
*
|
|
* Copyright 2016 Google, Inc
|
|
*/
|
|
|
|
/dts-v1/;
|
|
#include "rk3288-veyron-fievel.dts"
|
|
#include "rk3288-veyron-edp.dtsi"
|
|
|
|
/ {
|
|
model = "Google Tiger";
|
|
compatible = "google,veyron-tiger-rev8", "google,veyron-tiger-rev7",
|
|
"google,veyron-tiger-rev6", "google,veyron-tiger-rev5",
|
|
"google,veyron-tiger-rev4", "google,veyron-tiger-rev3",
|
|
"google,veyron-tiger-rev2", "google,veyron-tiger-rev1",
|
|
"google,veyron-tiger-rev0", "google,veyron-tiger",
|
|
"google,veyron", "rockchip,rk3288";
|
|
|
|
/delete-node/ vcc18-lcd;
|
|
};
|
|
|
|
&backlight {
|
|
/* Tiger panel PWM must be >= 1%, so start non-zero brightness at 3 */
|
|
brightness-levels = <0 3 255>;
|
|
num-interpolated-steps = <252>;
|
|
};
|
|
|
|
&backlight_regulator {
|
|
vin-supply = <&vccsys>;
|
|
};
|
|
|
|
&i2c3 {
|
|
status = "okay";
|
|
|
|
clock-frequency = <400000>;
|
|
i2c-scl-falling-time-ns = <50>;
|
|
i2c-scl-rising-time-ns = <300>;
|
|
|
|
touchscreen@10 {
|
|
compatible = "elan,ekth3500";
|
|
reg = <0x10>;
|
|
interrupt-parent = <&gpio2>;
|
|
interrupts = <RK_PB6 IRQ_TYPE_EDGE_FALLING>;
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&touch_int &touch_rst>;
|
|
reset-gpios = <&gpio2 RK_PB7 GPIO_ACTIVE_LOW>;
|
|
vcc33-supply = <&vcc33_io>;
|
|
vccio-supply = <&vcc33_io>;
|
|
wakeup-source;
|
|
};
|
|
};
|
|
|
|
&panel {
|
|
compatible = "auo,b101ean01", "simple-panel";
|
|
|
|
/delete-node/ panel-timing;
|
|
|
|
panel-timing {
|
|
clock-frequency = <66666667>;
|
|
hactive = <1280>;
|
|
hfront-porch = <18>;
|
|
hback-porch = <21>;
|
|
hsync-len = <32>;
|
|
vactive = <800>;
|
|
vfront-porch = <4>;
|
|
vback-porch = <8>;
|
|
vsync-len = <18>;
|
|
};
|
|
};
|
|
|
|
&pinctrl {
|
|
lcd {
|
|
/delete-node/ avdd-1v8-disp-en;
|
|
};
|
|
|
|
touchscreen {
|
|
touch_int: touch-int {
|
|
rockchip,pins = <2 RK_PB6 RK_FUNC_GPIO &pcfg_pull_none>;
|
|
};
|
|
|
|
touch_rst: touch-rst {
|
|
rockchip,pins = <2 RK_PB7 RK_FUNC_GPIO &pcfg_pull_none>;
|
|
};
|
|
};
|
|
};
|