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Tue, 8 Apr 2025 03:45:22 -0500 Received: from DLEE104.ent.ti.com (157.170.170.34) by DLEE100.ent.ti.com (157.170.170.30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23; Tue, 8 Apr 2025 03:45:22 -0500 Received: from lelvsmtp6.itg.ti.com (10.180.75.249) by DLEE104.ent.ti.com (157.170.170.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23 via Frontend Transport; Tue, 8 Apr 2025 03:45:22 -0500 Received: from [172.24.227.115] (abhilash-hp.dhcp.ti.com [172.24.227.115]) by lelvsmtp6.itg.ti.com (8.15.2/8.15.2) with ESMTP id 5388jIYM125620; Tue, 8 Apr 2025 03:45:19 -0500 Message-ID: Date: Tue, 8 Apr 2025 14:15:17 +0530 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/5] arm64: dts: ti: j721e-sk: Add DT nodes for power regulators To: Nishanth Menon CC: , , , , , , , , , , , References: <20250401114053.229534-1-y-abhilashchandra@ti.com> <20250401114053.229534-2-y-abhilashchandra@ti.com> <20250407134148.jk43mzr5iyk4htyy@unplanned> Content-Language: en-US From: Yemike Abhilash Chandra In-Reply-To: <20250407134148.jk43mzr5iyk4htyy@unplanned> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-C2ProcessedOrg: 333ef613-75bf-4e12-a4b1-8e3623f5dcea Hi Nishanth, On 07/04/25 19:11, Nishanth Menon wrote: > On 17:10-20250401, Yemike Abhilash Chandra wrote: >> Add device tree nodes for two power regulators on the J721E SK board. >> vsys_5v0: A fixed regulator representing the 5V supply output from the >> LM61460 and vdd_sd_dv: A GPIO-controlled TLV71033 regulator. >> >> J721E-SK schematics: https://www.ti.com/lit/zip/sprr438 >> Signed-off-by: Yemike Abhilash Chandra >> --- >> arch/arm64/boot/dts/ti/k3-j721e-sk.dts | 31 ++++++++++++++++++++++++++ >> 1 file changed, 31 insertions(+) >> >> diff --git a/arch/arm64/boot/dts/ti/k3-j721e-sk.dts b/arch/arm64/boot/dts/ti/k3-j721e-sk.dts >> index 440ef57be294..4965957e6545 100644 >> --- a/arch/arm64/boot/dts/ti/k3-j721e-sk.dts >> +++ b/arch/arm64/boot/dts/ti/k3-j721e-sk.dts >> @@ -184,6 +184,17 @@ vsys_3v3: fixedregulator-vsys3v3 { >> regulator-boot-on; >> }; >> >> + vsys_5v0: fixedregulator-vsys5v0 { >> + /* Output of LM61460 */ >> + compatible = "regulator-fixed"; >> + regulator-name = "vsys_5v0"; >> + regulator-min-microvolt = <5000000>; >> + regulator-max-microvolt = <5000000>; >> + vin-supply = <&vusb_main>; >> + regulator-always-on; >> + regulator-boot-on; >> + }; >> + >> vdd_mmc1: fixedregulator-sd { >> compatible = "regulator-fixed"; >> pinctrl-names = "default"; >> @@ -211,6 +222,20 @@ vdd_sd_dv_alt: gpio-regulator-tps659411 { >> <3300000 0x1>; >> }; >> >> + vdd_sd_dv: gpio-regulator-TLV71033 { > > Where is this used? This node will serve as the vin-supply for other regulator nodes defined within the device tree overlay. It is intended to be utilized when the overlay is applied. The corresponding usage of this node can be found in Patch 3 of this series. Thanks and Regards Yemike Abhilash Chandra > >> + compatible = "regulator-gpio"; >> + pinctrl-names = "default"; >> + pinctrl-0 = <&vdd_sd_dv_pins_default>; >> + regulator-name = "tlv71033"; >> + regulator-min-microvolt = <1800000>; >> + regulator-max-microvolt = <3300000>; >> + regulator-boot-on; >> + vin-supply = <&vsys_5v0>; >> + gpios = <&main_gpio0 118 GPIO_ACTIVE_HIGH>; >> + states = <1800000 0x0>, >> + <3300000 0x1>; >> + }; >> + >> transceiver1: can-phy1 { >> compatible = "ti,tcan1042"; >> #phy-cells = <0>; >> @@ -613,6 +638,12 @@ J721E_WKUP_IOPAD(0xd4, PIN_OUTPUT, 7) /* (G26) WKUP_GPIO0_9 */ >> >; >> }; >> >> + vdd_sd_dv_pins_default: vdd-sd-dv-default-pins { >> + pinctrl-single,pins = < >> + J721E_IOPAD(0x1dc, PIN_INPUT, 7) /* (Y1) SPI1_CLK.GPIO0_118 */ >> + >; >> + }; >> + >> wkup_uart0_pins_default: wkup-uart0-default-pins { >> pinctrl-single,pins = < >> J721E_WKUP_IOPAD(0xa0, PIN_INPUT, 0) /* (J29) WKUP_UART0_RXD */ >> -- >> 2.34.1 >> >