From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Sasha Levin <sashal@kernel.org>,
devicetree@vger.kernel.org, Chen-Yu Tsai <wens@csie.org>,
Maxime Ripard <maxime@cerno.tech>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH AUTOSEL 5.4 25/40] ARM: dts: sunxi: bananapi-m2-plus-v1.2: Fix CPU supply voltages
Date: Sat, 8 Aug 2020 19:38:29 -0400 [thread overview]
Message-ID: <20200808233844.3618823-25-sashal@kernel.org> (raw)
In-Reply-To: <20200808233844.3618823-1-sashal@kernel.org>
From: Chen-Yu Tsai <wens@csie.org>
[ Upstream commit e4dae01bf08b754de79072441c357737220b873f ]
The Bananapi M2+ uses a GPIO line to change the effective resistance of
the CPU supply regulator's feedback resistor network. The voltages
described in the device tree were given directly by the vendor. This
turns out to be slightly off compared to the real values.
The updated voltages are based on calculations of the feedback resistor
network, and verified down to three decimal places with a multi-meter.
Fixes: 6eeb4180d4b9 ("ARM: dts: sunxi: h3-h5: Add Bananapi M2+ v1.2 device trees")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20200717160053.31191-4-wens@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm/boot/dts/sunxi-bananapi-m2-plus-v1.2.dtsi | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/arm/boot/dts/sunxi-bananapi-m2-plus-v1.2.dtsi b/arch/arm/boot/dts/sunxi-bananapi-m2-plus-v1.2.dtsi
index a628b5ee72b65..235994a4a2ebb 100644
--- a/arch/arm/boot/dts/sunxi-bananapi-m2-plus-v1.2.dtsi
+++ b/arch/arm/boot/dts/sunxi-bananapi-m2-plus-v1.2.dtsi
@@ -16,12 +16,12 @@ reg_vdd_cpux: vdd-cpux {
regulator-type = "voltage";
regulator-boot-on;
regulator-always-on;
- regulator-min-microvolt = <1100000>;
- regulator-max-microvolt = <1300000>;
+ regulator-min-microvolt = <1108475>;
+ regulator-max-microvolt = <1308475>;
regulator-ramp-delay = <50>; /* 4ms */
gpios = <&r_pio 0 1 GPIO_ACTIVE_HIGH>; /* PL1 */
gpios-states = <0x1>;
- states = <1100000 0>, <1300000 1>;
+ states = <1108475 0>, <1308475 1>;
};
};
--
2.25.1
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next prev parent reply other threads:[~2020-08-08 23:51 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20200808233844.3618823-1-sashal@kernel.org>
2020-08-08 23:38 ` [PATCH AUTOSEL 5.4 04/40] arm64: dts: rockchip: fix rk3368-lion gmac reset gpio Sasha Levin
2020-08-08 23:38 ` [PATCH AUTOSEL 5.4 05/40] arm64: dts: rockchip: fix rk3399-puma vcc5v0-host gpio Sasha Levin
2020-08-08 23:38 ` [PATCH AUTOSEL 5.4 06/40] arm64: dts: rockchip: fix rk3399-puma gmac reset gpio Sasha Levin
2020-08-08 23:38 ` [PATCH AUTOSEL 5.4 12/40] ARM: exynos: MCPM: Restore big.LITTLE cpuidle support Sasha Levin
2020-08-08 23:38 ` [PATCH AUTOSEL 5.4 13/40] firmware: arm_scmi: Fix SCMI genpd domain probing Sasha Levin
2020-08-08 23:38 ` [PATCH AUTOSEL 5.4 14/40] arm64: dts: exynos: Fix silent hang after boot on Espresso Sasha Levin
2020-08-08 23:38 ` [PATCH AUTOSEL 5.4 16/40] clk: scmi: Fix min and max rate when registering clocks with discrete rates Sasha Levin
2020-08-08 23:38 ` [PATCH AUTOSEL 5.4 23/40] ARM: at91: pm: add missing put_device() call in at91_pm_sram_init() Sasha Levin
2020-08-08 23:38 ` [PATCH AUTOSEL 5.4 24/40] ARM: dts: sunxi: bananapi-m2-plus-v1.2: Add regulator supply to all CPU cores Sasha Levin
2020-08-08 23:38 ` Sasha Levin [this message]
2020-08-08 23:38 ` [PATCH AUTOSEL 5.4 31/40] spi: rockchip: Fix error in SPI slave pio read Sasha Levin
2020-08-08 23:38 ` [PATCH AUTOSEL 5.4 32/40] ARM: socfpga: PM: add missing put_device() call in socfpga_setup_ocram_self_refresh() Sasha Levin
2020-08-08 23:38 ` [PATCH AUTOSEL 5.4 34/40] irqchip/ti-sci-inta: Fix return value about devm_ioremap_resource() Sasha Levin
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