linux-kernel - [PATCH v2 14/18] ARM: dts: s5pv210: Enable ADC on aries boards

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <BN6PR04MB0660E7785BAE8D0F44F6CE57A3AB0@BN6PR04MB0660.namprd04.prod.outlook.com>
Date:   Fri,  1 May 2020 16:50:15 -0700
From:   Jonathan Bakker <xc-racer2@...e.ca>
To:     kgene@...nel.org, krzk@...nel.org, robh+dt@...nel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Jonathan Bakker <xc-racer2@...e.ca>
Subject: [PATCH v2 14/18] ARM: dts: s5pv210: Enable ADC on aries boards

On aries boards, the ADC is used for things such as jack detection
and battery temperature monitoring.  It is connected to ldo4 of max8998,
so only enable that regulator when we are actually using the ADC.

Signed-off-by: Jonathan Bakker <xc-racer2@...e.ca>

---
Changes from v1
- Replace removed regulator-off-in-suspend
---
 arch/arm/boot/dts/s5pv210-aries.dtsi | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/s5pv210-aries.dtsi b/arch/arm/boot/dts/s5pv210-aries.dtsi
index 945259aa5d55..9f4694d71203 100644
--- a/arch/arm/boot/dts/s5pv210-aries.dtsi
+++ b/arch/arm/boot/dts/s5pv210-aries.dtsi
@@ -195,7 +195,6 @@
 					regulator-name = "VADC_3.3V";
 					regulator-min-microvolt = <3300000>;
 					regulator-max-microvolt = <3300000>;
-					regulator-always-on;
 
 					regulator-state-mem {
 						regulator-off-in-suspend;
@@ -539,6 +538,12 @@
 	};
 };
 
+&adc {
+	vdd-supply = <&ldo4_reg>;
+
+	status = "okay";
+};
+
 &fimd {
 	pinctrl-names = "default";
 	pinctrl-0 = <&lcd_clk &lcd_data24>;
-- 
2.20.1