From: Alistair Francis <alistair23@gmail.com> To: Marco Felsch <m.felsch@pengutronix.de> Cc: Alistair Francis <alistair@alistair23.me>, linux-kernel@vger.kernel.org, shawnguo@kernel.org, linux-arm-kernel@lists.infradead.org, linux-imx@nxp.com, s.hauer@pengutronix.de, robh+dt@kernel.org, devicetree@vger.kernel.org, krzysztof.kozlowski+dt@linaro.org, arnd@arndb.de, linux@armlinux.org.uk, jernej.skrabec@gmail.com, kernel@pengutronix.de, festevam@gmail.com Subject: Re: [PATCH v2 3/3] ARM: dts: imx7d-remarkable2: Enable the rohm,bd71815 Date: Mon, 9 Jan 2023 22:11:48 +1000 [thread overview] Message-ID: <CAKmqyKO-Qw3AihUnF7np7_6kr6-ODnXU3aBwph-_9=xSbXRx-Q@mail.gmail.com> (raw) In-Reply-To: <20221220131715.femjybikqcnm4lyg@pengutronix.de> On Tue, Dec 20, 2022 at 11:17 PM Marco Felsch <m.felsch@pengutronix.de> wrote: > > Hi Alistair, > > thanks for your patch, please see below. > > On 22-12-20, Alistair Francis wrote: > > Add support for the rohm,bd71815 power controller controller for the > > reMarkable 2. > > > > Signed-off-by: Alistair Francis <alistair@alistair23.me> > > --- > > arch/arm/boot/dts/imx7d-remarkable2.dts | 159 ++++++++++++++++++++++++ > > 1 file changed, 159 insertions(+) > > > > diff --git a/arch/arm/boot/dts/imx7d-remarkable2.dts b/arch/arm/boot/dts/imx7d-remarkable2.dts > > index a138b292ec6a..4387d30d6180 100644 > > --- a/arch/arm/boot/dts/imx7d-remarkable2.dts > > +++ b/arch/arm/boot/dts/imx7d-remarkable2.dts > > @@ -92,6 +92,10 @@ wifi_pwrseq: wifi_pwrseq { > > }; > > }; > > > > +&cpu0 { > > + cpu-supply = <&buck1_reg>; > > +}; > > + > > &clks { > > assigned-clocks = <&clks IMX7D_CLKO2_ROOT_SRC>, > > <&clks IMX7D_CLKO2_ROOT_DIV>; > > @@ -119,6 +123,148 @@ wacom_digitizer: digitizer@9 { > > }; > > }; > > > > +&i2c2 { > > + clock-frequency = <100000>; > > We can set this now to 400kHz since the driver can handle quirks now > internal. After a discussion on the first patch I'm going to leave this as is. Let me know if you do want me to change it. > > > + pinctrl-names = "default", "sleep"; > > + pinctrl-0 = <&pinctrl_i2c2>; > > + pinctrl-1 = <&pinctrl_i2c2>; > > Do we need a "sleep" config here since this will be the same > configuration as the "default" one. Nope, dropped. > > > + status = "okay"; > > + > > + bd71815: pmic@4b { > > + compatible = "rohm,bd71815"; > > + reg = <0x4b>; > > + pinctrl-names = "default"; > > + pinctrl-0 = <&pinctrl_bd71815>; > > + interrupt-parent = <&gpio6>; /* PMIC_INT_B GPIO6_IO16 */ > > + interrupts = <16 IRQ_TYPE_LEVEL_LOW>; > > + gpio-controller; > > + clocks = <&clks IMX7D_CLKO2_ROOT_SRC>; > > + clock-output-names = "bd71815-32k-out"; > > + #clock-cells = <0>; > > + #gpio-cells = <1>; > > + > > + regulators { > > + #address-cells = <1>; > > + #size-cells = <0>; > > + > > + buck1_reg: regulator@0 { > > + reg = <0>; > > + regulator-compatible = "buck1"; > > + regulator-min-microvolt = <800000>; > > + regulator-max-microvolt = <2000000>; > > + regulator-boot-on; > > + regulator-always-on; > > + regulator-ramp-delay = <1250>; > > + }; > > + > > + buck2_reg: regulator@1 { > > + reg = <1>; > > + regulator-compatible = "buck2"; > > + regulator-min-microvolt = <800000>; > > + regulator-max-microvolt = <2000000>; > > + regulator-boot-on; > > + regulator-always-on; > > + regulator-ramp-delay = <1250>; > > + }; > > + > > + buck3_reg: regulator@2 { > > + reg = <2>; > > + regulator-compatible = "buck3"; > > + regulator-min-microvolt = <1200000>; > > + regulator-max-microvolt = <2700000>; > > + regulator-boot-on; > > + regulator-always-on; > > + }; > > + > > + buck4_reg: regulator@3 { > > + reg = <3>; > > + regulator-compatible = "buck4"; > > + regulator-min-microvolt = <1100000>; > > + regulator-max-microvolt = <1850000>; > > + regulator-boot-on; > > + regulator-always-on; > > + }; > > + > > + buck5_reg: regulator@4 { > > + reg = <4>; > > + regulator-compatible = "buck5"; > > + regulator-min-microvolt = <1800000>; > > + regulator-max-microvolt = <3300000>; > > + regulator-boot-on; > > + regulator-always-on; > > + }; > > + > > + ldo1_reg: regulator@5 { > > + reg = <5>; > > + regulator-compatible = "ldo1"; > > + regulator-min-microvolt = <800000>; > > + regulator-max-microvolt = <3300000>; > > + regulator-boot-on; > > + regulator-always-on; > > + }; > > + > > + ldo2_reg: regulator@6 { > > + reg = <6>; > > + regulator-compatible = "ldo2"; > > + regulator-min-microvolt = <800000>; > > + regulator-max-microvolt = <3300000>; > > + regulator-boot-on; > > + regulator-always-on; > > + }; > > + > > + ldo3_reg: regulator@7 { > > + reg = <7>; > > + regulator-compatible = "ldo3"; > > + regulator-min-microvolt = <800000>; > > + regulator-max-microvolt = <3300000>; > > + regulator-boot-on; > > + regulator-always-on; > > + }; > > + > > + ldo4_reg: regulator@8 { > > + reg = <8>; > > + regulator-compatible = "ldo4"; > > + regulator-min-microvolt = <800000>; > > + regulator-max-microvolt = <3300000>; > > + regulator-boot-on; > > + regulator-always-on; > > + }; > > + > > + ldo5_reg: regulator@9 { > > + reg = <9>; > > + regulator-compatible = "ldo5"; > > + regulator-min-microvolt = <800000>; > > + regulator-max-microvolt = <3300000>; > > + regulator-boot-on; > > + regulator-always-on; > > + }; > > + > > + dvref_reg: regulator@a { > > + reg = <0xa>; > > + regulator-compatible = "dvref"; > > + regulator-boot-on; > > + regulator-always-on; > > + }; > > + > > + lpsr_reg: regulator@b { > > + reg = <0xb>; > > + regulator-compatible = "lpsr"; > > + regulator-boot-on; > > + regulator-always-on; > > + }; > > + > > + wled_reg: regulator@c { > > + reg = <0xc>; > > + regulator-compatible = "wled"; > > + regulator-min-microamp = <10>; > > + regulator-max-microamp = <25000>; > > + regulator-boot-on; > > + regulator-always-on; > > + }; > > Note: You have marked all regulators as always on, this is rather > suboptimal due to power consumption. Good point. The power consumption is already pretty bad, as mainline doesn't support the i.MX deep sleep. As I know this works I'd like to keep it as is. I'll test to see if removing them doesn't break anything and then send a follow up patch. Alistair > > Regards, > Marco >
WARNING: multiple messages have this Message-ID (diff)
From: Alistair Francis <alistair23@gmail.com> To: Marco Felsch <m.felsch@pengutronix.de> Cc: Alistair Francis <alistair@alistair23.me>, linux-kernel@vger.kernel.org, shawnguo@kernel.org, linux-arm-kernel@lists.infradead.org, linux-imx@nxp.com, s.hauer@pengutronix.de, robh+dt@kernel.org, devicetree@vger.kernel.org, krzysztof.kozlowski+dt@linaro.org, arnd@arndb.de, linux@armlinux.org.uk, jernej.skrabec@gmail.com, kernel@pengutronix.de, festevam@gmail.com Subject: Re: [PATCH v2 3/3] ARM: dts: imx7d-remarkable2: Enable the rohm,bd71815 Date: Mon, 9 Jan 2023 22:11:48 +1000 [thread overview] Message-ID: <CAKmqyKO-Qw3AihUnF7np7_6kr6-ODnXU3aBwph-_9=xSbXRx-Q@mail.gmail.com> (raw) In-Reply-To: <20221220131715.femjybikqcnm4lyg@pengutronix.de> On Tue, Dec 20, 2022 at 11:17 PM Marco Felsch <m.felsch@pengutronix.de> wrote: > > Hi Alistair, > > thanks for your patch, please see below. > > On 22-12-20, Alistair Francis wrote: > > Add support for the rohm,bd71815 power controller controller for the > > reMarkable 2. > > > > Signed-off-by: Alistair Francis <alistair@alistair23.me> > > --- > > arch/arm/boot/dts/imx7d-remarkable2.dts | 159 ++++++++++++++++++++++++ > > 1 file changed, 159 insertions(+) > > > > diff --git a/arch/arm/boot/dts/imx7d-remarkable2.dts b/arch/arm/boot/dts/imx7d-remarkable2.dts > > index a138b292ec6a..4387d30d6180 100644 > > --- a/arch/arm/boot/dts/imx7d-remarkable2.dts > > +++ b/arch/arm/boot/dts/imx7d-remarkable2.dts > > @@ -92,6 +92,10 @@ wifi_pwrseq: wifi_pwrseq { > > }; > > }; > > > > +&cpu0 { > > + cpu-supply = <&buck1_reg>; > > +}; > > + > > &clks { > > assigned-clocks = <&clks IMX7D_CLKO2_ROOT_SRC>, > > <&clks IMX7D_CLKO2_ROOT_DIV>; > > @@ -119,6 +123,148 @@ wacom_digitizer: digitizer@9 { > > }; > > }; > > > > +&i2c2 { > > + clock-frequency = <100000>; > > We can set this now to 400kHz since the driver can handle quirks now > internal. After a discussion on the first patch I'm going to leave this as is. Let me know if you do want me to change it. > > > + pinctrl-names = "default", "sleep"; > > + pinctrl-0 = <&pinctrl_i2c2>; > > + pinctrl-1 = <&pinctrl_i2c2>; > > Do we need a "sleep" config here since this will be the same > configuration as the "default" one. Nope, dropped. > > > + status = "okay"; > > + > > + bd71815: pmic@4b { > > + compatible = "rohm,bd71815"; > > + reg = <0x4b>; > > + pinctrl-names = "default"; > > + pinctrl-0 = <&pinctrl_bd71815>; > > + interrupt-parent = <&gpio6>; /* PMIC_INT_B GPIO6_IO16 */ > > + interrupts = <16 IRQ_TYPE_LEVEL_LOW>; > > + gpio-controller; > > + clocks = <&clks IMX7D_CLKO2_ROOT_SRC>; > > + clock-output-names = "bd71815-32k-out"; > > + #clock-cells = <0>; > > + #gpio-cells = <1>; > > + > > + regulators { > > + #address-cells = <1>; > > + #size-cells = <0>; > > + > > + buck1_reg: regulator@0 { > > + reg = <0>; > > + regulator-compatible = "buck1"; > > + regulator-min-microvolt = <800000>; > > + regulator-max-microvolt = <2000000>; > > + regulator-boot-on; > > + regulator-always-on; > > + regulator-ramp-delay = <1250>; > > + }; > > + > > + buck2_reg: regulator@1 { > > + reg = <1>; > > + regulator-compatible = "buck2"; > > + regulator-min-microvolt = <800000>; > > + regulator-max-microvolt = <2000000>; > > + regulator-boot-on; > > + regulator-always-on; > > + regulator-ramp-delay = <1250>; > > + }; > > + > > + buck3_reg: regulator@2 { > > + reg = <2>; > > + regulator-compatible = "buck3"; > > + regulator-min-microvolt = <1200000>; > > + regulator-max-microvolt = <2700000>; > > + regulator-boot-on; > > + regulator-always-on; > > + }; > > + > > + buck4_reg: regulator@3 { > > + reg = <3>; > > + regulator-compatible = "buck4"; > > + regulator-min-microvolt = <1100000>; > > + regulator-max-microvolt = <1850000>; > > + regulator-boot-on; > > + regulator-always-on; > > + }; > > + > > + buck5_reg: regulator@4 { > > + reg = <4>; > > + regulator-compatible = "buck5"; > > + regulator-min-microvolt = <1800000>; > > + regulator-max-microvolt = <3300000>; > > + regulator-boot-on; > > + regulator-always-on; > > + }; > > + > > + ldo1_reg: regulator@5 { > > + reg = <5>; > > + regulator-compatible = "ldo1"; > > + regulator-min-microvolt = <800000>; > > + regulator-max-microvolt = <3300000>; > > + regulator-boot-on; > > + regulator-always-on; > > + }; > > + > > + ldo2_reg: regulator@6 { > > + reg = <6>; > > + regulator-compatible = "ldo2"; > > + regulator-min-microvolt = <800000>; > > + regulator-max-microvolt = <3300000>; > > + regulator-boot-on; > > + regulator-always-on; > > + }; > > + > > + ldo3_reg: regulator@7 { > > + reg = <7>; > > + regulator-compatible = "ldo3"; > > + regulator-min-microvolt = <800000>; > > + regulator-max-microvolt = <3300000>; > > + regulator-boot-on; > > + regulator-always-on; > > + }; > > + > > + ldo4_reg: regulator@8 { > > + reg = <8>; > > + regulator-compatible = "ldo4"; > > + regulator-min-microvolt = <800000>; > > + regulator-max-microvolt = <3300000>; > > + regulator-boot-on; > > + regulator-always-on; > > + }; > > + > > + ldo5_reg: regulator@9 { > > + reg = <9>; > > + regulator-compatible = "ldo5"; > > + regulator-min-microvolt = <800000>; > > + regulator-max-microvolt = <3300000>; > > + regulator-boot-on; > > + regulator-always-on; > > + }; > > + > > + dvref_reg: regulator@a { > > + reg = <0xa>; > > + regulator-compatible = "dvref"; > > + regulator-boot-on; > > + regulator-always-on; > > + }; > > + > > + lpsr_reg: regulator@b { > > + reg = <0xb>; > > + regulator-compatible = "lpsr"; > > + regulator-boot-on; > > + regulator-always-on; > > + }; > > + > > + wled_reg: regulator@c { > > + reg = <0xc>; > > + regulator-compatible = "wled"; > > + regulator-min-microamp = <10>; > > + regulator-max-microamp = <25000>; > > + regulator-boot-on; > > + regulator-always-on; > > + }; > > Note: You have marked all regulators as always on, this is rather > suboptimal due to power consumption. Good point. The power consumption is already pretty bad, as mainline doesn't support the i.MX deep sleep. As I know this works I'd like to keep it as is. I'll test to see if removing them doesn't break anything and then send a follow up patch. Alistair > > Regards, > Marco > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2023-01-09 12:12 UTC|newest] Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-12-20 11:29 [PATCH v2 0/3] imx7d-remarkable2: Enable cyttsp5 and rohm,bd71815 Alistair Francis 2022-12-20 11:29 ` Alistair Francis 2022-12-20 11:29 ` [PATCH v2 1/3] ARM: dts: imx7d-remarkable2: Enable the cyttsp5 Alistair Francis 2022-12-20 11:29 ` Alistair Francis 2022-12-20 13:20 ` Marco Felsch 2022-12-20 13:20 ` Marco Felsch 2022-12-20 16:50 ` Ahmad Fatoum 2022-12-20 16:50 ` Ahmad Fatoum 2023-01-06 12:44 ` Alistair Francis 2023-01-06 12:44 ` Alistair Francis 2022-12-20 11:29 ` [PATCH v2 2/3] ARM: imx_v6_v7_defconfig: Enable rohm,bd71815 Alistair Francis 2022-12-20 11:29 ` Alistair Francis 2022-12-20 11:29 ` [PATCH v2 3/3] ARM: dts: imx7d-remarkable2: Enable the rohm,bd71815 Alistair Francis 2022-12-20 11:29 ` Alistair Francis 2022-12-20 13:17 ` Marco Felsch 2022-12-20 13:17 ` Marco Felsch 2023-01-09 12:11 ` Alistair Francis [this message] 2023-01-09 12:11 ` Alistair Francis 2023-01-09 19:13 ` Matti Vaittinen 2023-01-09 19:13 ` Matti Vaittinen 2023-01-20 9:17 ` Alistair Francis 2023-01-20 9:17 ` Alistair Francis 2023-01-20 14:01 ` Matti Vaittinen 2023-01-20 14:01 ` Matti Vaittinen 2023-01-21 12:47 ` Alistair Francis 2023-01-21 12:47 ` Alistair Francis
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