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ARM: dts: am335x: Guardian: Update backlight parameter

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* Update default brightness and dimming frequency
 * Enable current sink, while initialization

Signed-off-by: Gireesh Hiremath <Gireesh.Hiremath@in.bosch.com>
Message-Id: <20220325100613.1494-11-Gireesh.Hiremath@in.bosch.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Gireesh Hiremath 2022-03-25 10:06:08 +00:00 committed by Tony Lindgren
parent 677d855707
commit 60f68df397
1 changed files with 29 additions and 2 deletions
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31
arch/arm/boot/dts/am335x-guardian.dts
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@ -291,14 +291,34 @@ &spi0 {
#include "tps65217.dtsi"
&tps {
/*
* Configure pmic to enter OFF-state instead of SLEEP-state ("RTC-only
* mode") at poweroff. Most BeagleBone versions do not support RTC-only
* mode and risk hardware damage if this mode is entered.
*
* For details, see linux-omap mailing list May 2015 thread
* [PATCH] ARM: dts: am335x-bone* enable pmic-shutdown-controller
* In particular, messages:
* http://www.spinics.net/lists/linux-omap/msg118585.html
* http://www.spinics.net/lists/linux-omap/msg118615.html
*
* You can override this later with
* &tps { /delete-property/ ti,pmic-shutdown-controller; }
* if you want to use RTC-only mode and made sure you are not affected
* by the hardware problems. (Tip: double-check by performing a current
* measurement after shutdown: it should be less than 1 mA.)
*/
ti,pmic-shutdown-controller;
interrupt-parent = <&intc>;
interrupts = <7>; /* NMI */
backlight {
isel = <1>; /* 1 - ISET1, 2 ISET2 */
fdim = <100>; /* TPS65217_BL_FDIM_100HZ */
default-brightness = <100>;
fdim = <500>; /* TPS65217_BL_FDIM_500HZ */
default-brightness = <50>;
/* 1(on) - enable current sink, while initialization */
/* 0(off) - disable current sink, while initialization */
isink-en = <1>;
};
regulators {
@ -408,6 +428,13 @@ AM33XX_IOPAD(0x98c, PIN_INPUT_PULLUP | MUX_MODE0)
>;
};
led_bl_pins: gpio_led_bl_pins {
pinctrl-single,pins = <
/* P9_14, gpmc_a[2].GPIO1[18] (backlight control) */
AM33XX_IOPAD(0x848, PIN_OUTPUT | MUX_MODE7)
>;
};
lcd_disen_pins: pinmux_lcd_disen_pins {
pinctrl-single,pins = <
/* P9_27, mcasp0_fsr.gpio3[19] (lcd_disen) */