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[109.252.192.57]) by smtp.gmail.com with ESMTPSA id q5sm996921lfr.172.2021.01.22.12.25.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 22 Jan 2021 12:25:07 -0800 (PST) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Daniel Lezcano , Nicolas Chauvet , Matt Merhar , Peter Geis Cc: linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 01/13] ARM: tegra: ventana: Support CPU and Core voltage scaling Date: Fri, 22 Jan 2021 23:24:45 +0300 Message-Id: <20210122202457.13326-2-digetx@gmail.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210122202457.13326-1-digetx@gmail.com> References: <20210122202457.13326-1-digetx@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Support CPU and Core voltage scaling on Tegra20 Ventana board. Signed-off-by: Dmitry Osipenko --- arch/arm/boot/dts/tegra20-ventana.dts | 37 ++++++++++++++++++++------- 1 file changed, 28 insertions(+), 9 deletions(-) diff --git a/arch/arm/boot/dts/tegra20-ventana.dts b/arch/arm/boot/dts/tegra20-ventana.dts index 055334ae3d28..02b94ed722d0 100644 --- a/arch/arm/boot/dts/tegra20-ventana.dts +++ b/arch/arm/boot/dts/tegra20-ventana.dts @@ -4,6 +4,7 @@ #include #include "tegra20.dtsi" #include "tegra20-cpu-opp.dtsi" +#include "tegra20-cpu-opp-microvolt.dtsi" / { model = "NVIDIA Tegra20 Ventana evaluation board"; @@ -420,18 +421,28 @@ sys_reg: sys { regulator-always-on; }; - sm0 { + vdd_core: sm0 { regulator-name = "vdd_sm0,vdd_core"; - regulator-min-microvolt = <1200000>; - regulator-max-microvolt = <1200000>; + regulator-min-microvolt = <950000>; + regulator-max-microvolt = <1300000>; + regulator-coupled-with = <&rtc_vdd &vdd_cpu>; + regulator-coupled-max-spread = <170000 550000>; regulator-always-on; + regulator-boot-on; + + nvidia,tegra-core-regulator; }; - sm1 { + vdd_cpu: sm1 { regulator-name = "vdd_sm1,vdd_cpu"; - regulator-min-microvolt = <1000000>; - regulator-max-microvolt = <1000000>; + regulator-min-microvolt = <750000>; + regulator-max-microvolt = <1125000>; + regulator-coupled-with = <&vdd_core &rtc_vdd>; + regulator-coupled-max-spread = <550000 550000>; regulator-always-on; + regulator-boot-on; + + nvidia,tegra-cpu-regulator; }; sm2_reg: sm2 { @@ -450,10 +461,16 @@ ldo1 { regulator-always-on; }; - ldo2 { + rtc_vdd: ldo2 { regulator-name = "vdd_ldo2,vdd_rtc"; - regulator-min-microvolt = <1200000>; - regulator-max-microvolt = <1200000>; + regulator-min-microvolt = <950000>; + regulator-max-microvolt = <1300000>; + regulator-coupled-with = <&vdd_core &vdd_cpu>; + regulator-coupled-max-spread = <170000 550000>; + regulator-always-on; + regulator-boot-on; + + nvidia,tegra-rtc-regulator; }; ldo3 { @@ -595,10 +612,12 @@ clk32k_in: clock@0 { cpus { cpu0: cpu@0 { + cpu-supply = <&vdd_cpu>; operating-points-v2 = <&cpu0_opp_table>; }; cpu@1 { + cpu-supply = <&vdd_cpu>; operating-points-v2 = <&cpu0_opp_table>; }; }; -- 2.29.2