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Message-ID: <cc2c3e97-e2c6-487b-91a5-c5f5fbe2c3bc@ti.com>
Date: Thu, 7 Dec 2023 11:01:24 +0530
From: Neha Malcom Francis <n-francis@...com>
To: "Kumar, Udit" <u-kumar1@...com>, Nishanth Menon <nm@...com>
CC: <vigneshr@...com>, <kristo@...nel.org>, <robh+dt@...nel.org>,
<krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
<a-nandan@...com>, <linux-arm-kernel@...ts.infradead.org>,
<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<eblanc@...libre.com>, <jneanne@...libre.com>,
<aseketeli@...libre.com>, <jpanis@...libre.com>, <j-luthra@...com>,
<vaishnav.a@...com>, <hnagalla@...com>, <devarsht@...com>
Subject: Re: [PATCH v9 6/7] arm64: dts: ti: k3-j721e-sk: Add TPS6594 family
PMICs
Hi Nishanth, Udit,
On 07/12/23 10:12, Kumar, Udit wrote:
>
> On 12/5/2023 8:46 PM, Nishanth Menon wrote:
>> On 15:04-20231205, Neha Malcom Francis wrote:
>>> This patch adds support for TPS6594 PMIC family on wakeup I2C0 bus.
>>> These devices provide regulators (bucks and LDOs), but also GPIOs, a
>>> RTC, a watchdog, an ESM (Error Signal Monitor) which monitors the SoC
>>> error output signal, and a PFSM (Pre-configurable Finite State Machine)
>>> which manages the operational modes of the PMIC.
>>>
>>> Signed-off-by: Neha Malcom Francis <n-francis@...com>
>>> ---
>>> arch/arm64/boot/dts/ti/k3-j721e-sk.dts | 158 +++++++++++++++++++++++++
>>> 1 file changed, 158 insertions(+)
>>>
>>> diff --git a/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
>>> b/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
>>> index 42fe8eee9ec8..e600825f7e78 100644
>>> --- a/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
>>> +++ b/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
>>> @@ -459,6 +459,13 @@ J721E_IOPAD(0x234, PIN_INPUT, 7) /* (U3)
>>> EXT_REFCLK1.GPIO1_12 */
>>> };
>>> &wkup_pmx0 {
>>> + pmic_irq_pins_default: pmic-irq-default-pins {
>>> + bootph-pre-ram;
>>> + pinctrl-single,pins = <
>>> + J721E_WKUP_IOPAD(0x0cc, PIN_INPUT, 7) /* (G28) WKUP_GPIO0_7 */
>>> + >;
>>> + };
>>> +
>>> mcu_cpsw_pins_default: mcu-cpsw-default-pins {
>>> pinctrl-single,pins = <
>>> J721E_WKUP_IOPAD(0x84, PIN_INPUT, 0) /* (B24) MCU_RGMII1_RD0 */
>>> @@ -560,6 +567,157 @@ eeprom@51 {
>>> compatible = "atmel,24c512";
>>> reg = <0x51>;
>>> };
>>> +
>>> + tps659413: pmic@48 {
>>> + bootph-pre-ram;
>> only for the leaf nodes. See
>> https://libera.irclog.whitequark.org/armlinux/2023-10-19
>
>
> AFAIK, please correct me, u-boot still needs in all nodes ?
>
That's what I believe as well, is it better to have only the leaf nodes in
kernel and have U-Boot DTSI handle the parent bootph properties? If so I'll send
out v10 making change accordingly.
>>
>>> + compatible = "ti,tps6594-q1";
>>> + reg = <0x48>;
>>> + system-power-controller;
>>> + pinctrl-names = "default";
>>> + pinctrl-0 = <&pmic_irq_pins_default>;
>>> + interrupt-parent = <&wkup_gpio0>;
>>> + interrupts = <9 IRQ_TYPE_EDGE_FALLING>;
>>> + ti,primary-pmic;
>>> +
>>> + gpio-controller;
>>> + #gpio-cells = <2>;
>>> +
>>> + buck123-supply = <&vsys_3v3>;
>>> + buck4-supply = <&vsys_3v3>;
>>> + buck5-supply = <&vsys_3v3>;
>>> + ldo1-supply = <&vsys_3v3>;
>>> + ldo2-supply = <&vsys_3v3>;
>>> + ldo3-supply = <&vsys_3v3>;
>>> + ldo4-supply = <&vsys_3v3>;
>>> +
>>> + regulators {
>>> + bootph-pre-ram;
>>> + bucka123: buck123 {
>>> + bootph-pre-ram;
>>> + regulator-name = "vdd_cpu_avs";
>>> + regulator-min-microvolt = <600000>;
>>> + regulator-max-microvolt = <900000>;
>>> + regulator-boot-on;
>>> + regulator-always-on;
>>> + };
>>> +
>>> + bucka4: buck4 {
>>> + regulator-name = "vdd_mcu_0v85";
>>> + regulator-min-microvolt = <850000>;
>>> + regulator-max-microvolt = <850000>;
>>> + regulator-boot-on;
>>> + regulator-always-on;
>>> + };
>>> +
>>> + bucka5: buck5 {
>>> + regulator-name = "vdd_phyio_1v8";
>>> + regulator-min-microvolt = <1800000>;
>>> + regulator-max-microvolt = <1800000>;
>>> + regulator-boot-on;
>>> + regulator-always-on;
>>> + };
>>> +
>>> + ldoa1: ldo1 {
>>> + regulator-name = "vdd1_lpddr4_1v8";
>>> + regulator-min-microvolt = <1800000>;
>>> + regulator-max-microvolt = <1800000>;
>>> + regulator-boot-on;
>>> + regulator-always-on;
>>> + };
>>> +
>>> + ldoa2: ldo2 {
>>> + regulator-name = "vdd_mcuio_1v8";
>>> + regulator-min-microvolt = <1800000>;
>>> + regulator-max-microvolt = <1800000>;
>>> + regulator-boot-on;
>>> + regulator-always-on;
>>> + };
>>> +
>>> + ldoa3: ldo3 {
>>> + regulator-name = "vdda_dll_0v8";
>>> + regulator-min-microvolt = <800000>;
>>> + regulator-max-microvolt = <800000>;
>>> + regulator-boot-on;
>>> + regulator-always-on;
>>> + };
>>> +
>>> + ldoa4: ldo4 {
>>> + regulator-name = "vda_mcu_1v8";
>>> + regulator-min-microvolt = <1800000>;
>>> + regulator-max-microvolt = <1800000>;
>>> + regulator-boot-on;
>>> + regulator-always-on;
>>> + };
>>> + };
>>> + };
>>> +
>>> + tps659411: pmic@4c {
>>> + compatible = "ti,tps6594-q1";
>>> + reg = <0x4c>;
>>> + system-power-controller;
>>> + interrupt-parent = <&wkup_gpio0>;
>>> + interrupts = <9 IRQ_TYPE_EDGE_FALLING>;
>>> +
>>> + gpio-controller;
>>> + #gpio-cells = <2>;
>>> +
>>> + buck1234-supply = <&vsys_3v3>;
>>> + buck5-supply = <&vsys_3v3>;
>>> + ldo1-supply = <&vsys_3v3>;
>>> + ldo2-supply = <&vsys_3v3>;
>>> + ldo3-supply = <&vsys_3v3>;
>>> + ldo4-supply = <&vsys_3v3>;
>>> +
>>> + regulators {
>>> + buckb1234: buck1234 {
>>> + regulator-name = "vdd_core_0v8";
>>> + regulator-min-microvolt = <800000>;
>>> + regulator-max-microvolt = <800000>;
>>> + regulator-boot-on;
>>> + regulator-always-on;
>>> + };
>>> +
>>> + buckb5: buck5 {
>>> + regulator-name = "vdd_ram_0v85";
>>> + regulator-min-microvolt = <850000>;
>>> + regulator-max-microvolt = <850000>;
>>> + regulator-boot-on;
>>> + regulator-always-on;
>>> + };
>>> +
>>> + ldob1: ldo1 {
>>> + regulator-name = "vdd_sd_dv";
>>> + regulator-min-microvolt = <1800000>;
>>> + regulator-max-microvolt = <3300000>;
>>> + regulator-boot-on;
>>> + regulator-always-on;
>>> + };
>>> +
>>> + ldob2: ldo2 {
>>> + regulator-name = "vdd_usb_3v3";
>>> + regulator-min-microvolt = <3300000>;
>>> + regulator-max-microvolt = <3300000>;
>>> + regulator-boot-on;
>>> + regulator-always-on;
>>> + };
>>> +
>>> + ldob3: ldo3 {
>>> + regulator-name = "vdd_io_1v8";
>>> + regulator-min-microvolt = <1800000>;
>>> + regulator-max-microvolt = <1800000>;
>>> + regulator-boot-on;
>>> + regulator-always-on;
>>> + };
>>> +
>>> + ldob4: ldo4 {
>>> + regulator-name = "vda_pll_1v8";
>>> + regulator-min-microvolt = <1800000>;
>>> + regulator-max-microvolt = <1800000>;
>>> + regulator-boot-on;
>>> + regulator-always-on;
>>> + };
>>> + };
>>> + };
>>> };
>>> &mcu_uart0 {
>>> --
>>> 2.34.1
>>>
--
Thanking You
Neha Malcom Francis
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