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Fri, 11 Apr 2025 07:30:43 -0700 (PDT) Message-ID: <6e52883b-2811-4ac2-9763-5974ca463274@tuxon.dev> Date: Fri, 11 Apr 2025 17:30:42 +0300 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 5/6] ARM: dts: microchip: sama7d65: Add MCP16502 to sama7d65 curiosity To: Ryan.Wanner@microchip.com, andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, robh@kernel.org, krzk+dt@kernel.org, onor+dt@kernel.org, alexandre.belloni@bootlin.com Cc: nicolas.ferre@microchip.com, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org References: <60f6b7764227bb42c74404e8ca1388477183b7b5.1743523114.git.Ryan.Wanner@microchip.com> From: Claudiu Beznea Content-Language: en-US In-Reply-To: <60f6b7764227bb42c74404e8ca1388477183b7b5.1743523114.git.Ryan.Wanner@microchip.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Hi, Ryan, On 01.04.2025 19:13, Ryan.Wanner@microchip.com wrote: > From: Ryan Wanner > > Add MCP16502 to the sama7d65_curiosity board to control voltages in the > MPU. The device is connected to twi 10 interface > > Signed-off-by: Ryan Wanner > --- > .../dts/microchip/at91-sama7d65_curiosity.dts | 135 ++++++++++++++++++ > 1 file changed, 135 insertions(+) > > diff --git a/arch/arm/boot/dts/microchip/at91-sama7d65_curiosity.dts b/arch/arm/boot/dts/microchip/at91-sama7d65_curiosity.dts > index 441370dbb4c2..81abc387112d 100644 > --- a/arch/arm/boot/dts/microchip/at91-sama7d65_curiosity.dts > +++ b/arch/arm/boot/dts/microchip/at91-sama7d65_curiosity.dts > @@ -30,6 +30,15 @@ memory@60000000 { > device_type = "memory"; > reg = <0x60000000 0x40000000>; > }; > + > + reg_5v: regulator-5v { > + compatible = "regulator-fixed"; > + regulator-name = "5V_MAIN"; > + regulator-min-microvolt = <5000000>; > + regulator-max-microvolt = <5000000>; > + regulator-always-on; > + }; > + > }; > > &dma0 { > @@ -99,6 +108,132 @@ channel@4 { > label = "VDDCPU"; > }; > }; > + > + pmic@5b { > + compatible = "microchip,mcp16502"; > + reg = <0x5b>; > + lvin-supply = <®_5v>; > + pvin1-supply = <®_5v>; > + pvin2-supply = <®_5v>; > + pvin3-supply = <®_5v>; > + pvin4-supply = <®_5v>; > + status = "okay"; > + > + regulators { > + vdd_3v3: VDD_IO { > + regulator-name = "VDD_IO"; > + regulator-min-microvolt = <3300000>; > + regulator-max-microvolt = <3300000>; > + regulator-initial-mode = <2>; > + regulator-allowed-modes = <2>, <4>; > + regulator-always-on; > + > + regulator-state-standby { > + regulator-on-in-suspend; > + regulator-suspend-microvolt = <3300000>; > + regulator-mode = <4>; > + }; > + > + regulator-state-mem { > + regulator-off-in-suspend; > + regulator-mode = <4>; > + }; > + }; > + > + vddioddr: VDD_DDR { > + regulator-name = "VDD_DDR"; > + regulator-min-microvolt = <1350000>; > + regulator-max-microvolt = <1350000>; > + regulator-initial-mode = <2>; > + regulator-allowed-modes = <2>, <4>; > + regulator-always-on; > + > + regulator-state-standby { > + regulator-on-in-suspend; > + regulator-suspend-microvolt = <1350000>; > + regulator-mode = <4>; > + }; > + > + regulator-state-mem { > + regulator-on-in-suspend; > + regulator-suspend-microvolt = <1350000>; > + regulator-mode = <4>; > + }; > + }; > + > + vddcore: VDD_CORE { > + regulator-name = "VDD_CORE"; > + regulator-min-microvolt = <1050000>; > + regulator-max-microvolt = <1050000>; > + regulator-initial-mode = <2>; > + regulator-allowed-modes = <2>, <4>; > + regulator-always-on; > + > + regulator-state-standby { > + regulator-on-in-suspend; > + regulator-suspend-microvolt = <1050000>; > + regulator-mode = <4>; > + }; > + > + regulator-state-mem { > + regulator-off-in-suspend; > + regulator-mode = <4>; > + }; > + }; > + > + vddcpu: VDD_OTHER { > + regulator-name = "VDD_OTHER"; > + regulator-min-microvolt = <1050000>; > + regulator-max-microvolt = <1250000>; > + regulator-initial-mode = <2>; > + regulator-allowed-modes = <2>, <4>; > + regulator-ramp-delay = <3125>; > + regulator-always-on; > + > + regulator-state-standby { > + regulator-on-in-suspend; > + regulator-suspend-microvolt = <1050000>; > + regulator-mode = <4>; > + }; > + > + regulator-state-mem { > + regulator-off-in-suspend; > + regulator-mode = <4>; > + }; > + }; > + > + vldo1: LDO1 { > + regulator-name = "LDO1"; > + regulator-min-microvolt = <1800000>; > + regulator-max-microvolt = <1800000>; > + regulator-always-on; > + > + regulator-state-standby { > + regulator-suspend-microvolt = <1800000>; > + regulator-on-in-suspend; > + }; > + > + regulator-state-mem { > + regulator-off-in-suspend; > + }; > + }; > + > + vldo2: LDO2 { > + regulator-name = "LDO2"; > + regulator-min-microvolt = <1200000>; > + regulator-max-microvolt = <3700000>; > + > + regulator-state-standby { > + regulator-suspend-microvolt = <1800000>; I can't find the schematics for this board. Is there a reason for keeping this @1.8V in suspend? Thank you, Claudiu > + regulator-on-in-suspend; > + }; > + > + regulator-state-mem { > + regulator-off-in-suspend; > + }; > + }; > + }; > + }; > }; > > &main_xtal {