From mboxrd@z Thu Jan 1 00:00:00 1970 From: Simon Horman Date: Mon, 23 Jun 2014 02:28:15 +0000 Subject: [PATCH 06/29] ARM: shmobile: lager: Add VDD MPU regulator for DVFS Message-Id: <05f72e03b7553958609d1475c79491f90e6b50d3.1403487225.git.horms+renesas@verge.net.au> List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-arm-kernel@lists.infradead.org From: Benoit Cousson The CA15 cluster is capable of voltage scaling. Add the regulator in the i2c3 node, to allow the generic CPUFreq driver to use it. Enable the i2c3 pin mux and the device node as well since the da9210 is connected to that bus. Note: In R-CAR Gen2, each frequency is using the same voltage, and DVS control is not used. Therefore, this patch set the voltage(Vmin/Vmax) to 1000mv. Signed-off-by: Benoit Cousson [gaku.inami.xw@bp.renesas.com: Changes Vmin for disabling DVS] Signed-off-by: Gaku Inami Acked-by: Magnus Damm Signed-off-by: Simon Horman --- arch/arm/boot/dts/r8a7790-lager.dts | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/arch/arm/boot/dts/r8a7790-lager.dts b/arch/arm/boot/dts/r8a7790-lager.dts index dd2fe46..6472cf0 100644 --- a/arch/arm/boot/dts/r8a7790-lager.dts +++ b/arch/arm/boot/dts/r8a7790-lager.dts @@ -204,6 +204,11 @@ "msiof1_tx"; renesas,function = "msiof1"; }; + + i2c3_pins: i2c3 { + renesas,groups = "i2c3"; + renesas,function = "i2c3"; + }; }; ðer { @@ -317,3 +322,19 @@ cd-gpios = <&gpio3 22 GPIO_ACTIVE_LOW>; status = "okay"; }; + +&i2c3 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c3_pins>; + status = "okay"; + + vdd_dvfs: regulator@68 { + compatible = "diasemi,da9210"; + reg = <0x68>; + + regulator-min-microvolt = <1000000>; + regulator-max-microvolt = <1000000>; + regulator-boot-on; + regulator-always-on; + }; +}; -- 2.0.0.rc2 From mboxrd@z Thu Jan 1 00:00:00 1970 From: horms+renesas@verge.net.au (Simon Horman) Date: Mon, 23 Jun 2014 11:28:15 +0900 Subject: [PATCH 06/29] ARM: shmobile: lager: Add VDD MPU regulator for DVFS In-Reply-To: References: Message-ID: <05f72e03b7553958609d1475c79491f90e6b50d3.1403487225.git.horms+renesas@verge.net.au> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: Benoit Cousson The CA15 cluster is capable of voltage scaling. Add the regulator in the i2c3 node, to allow the generic CPUFreq driver to use it. Enable the i2c3 pin mux and the device node as well since the da9210 is connected to that bus. Note: In R-CAR Gen2, each frequency is using the same voltage, and DVS control is not used. Therefore, this patch set the voltage(Vmin/Vmax) to 1000mv. Signed-off-by: Benoit Cousson [gaku.inami.xw at bp.renesas.com: Changes Vmin for disabling DVS] Signed-off-by: Gaku Inami Acked-by: Magnus Damm Signed-off-by: Simon Horman --- arch/arm/boot/dts/r8a7790-lager.dts | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/arch/arm/boot/dts/r8a7790-lager.dts b/arch/arm/boot/dts/r8a7790-lager.dts index dd2fe46..6472cf0 100644 --- a/arch/arm/boot/dts/r8a7790-lager.dts +++ b/arch/arm/boot/dts/r8a7790-lager.dts @@ -204,6 +204,11 @@ "msiof1_tx"; renesas,function = "msiof1"; }; + + i2c3_pins: i2c3 { + renesas,groups = "i2c3"; + renesas,function = "i2c3"; + }; }; ðer { @@ -317,3 +322,19 @@ cd-gpios = <&gpio3 22 GPIO_ACTIVE_LOW>; status = "okay"; }; + +&i2c3 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c3_pins>; + status = "okay"; + + vdd_dvfs: regulator at 68 { + compatible = "diasemi,da9210"; + reg = <0x68>; + + regulator-min-microvolt = <1000000>; + regulator-max-microvolt = <1000000>; + regulator-boot-on; + regulator-always-on; + }; +}; -- 2.0.0.rc2