From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org,
Marek Szyprowski <m.szyprowski@samsung.com>,
Krzysztof Kozlowski <krzk@kernel.org>,
Arnd Bergmann <arnd@arndb.de>
Subject: [PATCH 5.0 12/25] ARM: dts: exynos: Fix max voltage for buck8 regulator on Odroid XU3/XU4
Date: Tue, 12 Mar 2019 10:08:50 -0700 [thread overview]
Message-ID: <20190312170404.451980264@linuxfoundation.org> (raw)
In-Reply-To: <20190312170403.643852550@linuxfoundation.org>
5.0-stable review patch. If anyone has any objections, please let me know.
------------------
From: Marek Szyprowski <m.szyprowski@samsung.com>
commit a3238924a820c1d7c977b632b769f3b5690cba09 upstream.
The maximum voltage value for buck8 regulator on Odroid XU3/XU4 boards is
set too low. Increase it to the 2000mV as specified on the board schematic.
So far the board worked fine, because of the bug in the PMIC driver, which
used incorrect step value for that regulator. It interpreted the voltage
value set by the bootloader as 1225mV and kept it unchanged. The regulator
driver has been however fixed recently in the commit 56b5d4ea778c
("regulator: s2mps11: Fix steps for buck7, buck8 and LDO35"), what results
in reading the proper buck8 value and forcing it to 1500mV on boot. This
is not enough for proper board operation and results in eMMC errors during
heavy IO traffic. Increasing maximum voltage value for buck8 restores
original driver behavior and fixes eMMC issues.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Fixes: 86a2d2ac5e5d ("ARM: dts: Add dts file for Odroid XU3 board")
Fixes: 56b5d4ea778c ("regulator: s2mps11: Fix steps for buck7, buck8 and LDO35")
Cc: <stable@vger.kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/arm/boot/dts/exynos5422-odroid-core.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/arm/boot/dts/exynos5422-odroid-core.dtsi
+++ b/arch/arm/boot/dts/exynos5422-odroid-core.dtsi
@@ -468,7 +468,7 @@
buck8_reg: BUCK8 {
regulator-name = "vdd_1.8v_ldo";
regulator-min-microvolt = <800000>;
- regulator-max-microvolt = <1500000>;
+ regulator-max-microvolt = <2000000>;
regulator-always-on;
regulator-boot-on;
};
next prev parent reply other threads:[~2019-03-12 18:14 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-12 17:08 [PATCH 5.0 00/25] 5.0.2-stable review Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 5.0 01/25] media: uvcvideo: Fix type check leading to overflow Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 5.0 02/25] Input: wacom_serial4 - add support for Wacom ArtPad II tablet Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 5.0 03/25] Input: elan_i2c - add id for touchpad found in Lenovo s21e-20 Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 5.0 04/25] iscsi_ibft: Fix missing break in switch statement Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 5.0 05/25] scsi: aacraid: " Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 5.0 06/25] x86/PCI: Fixup RTIT_BAR of Intel Denverton Trace Hub Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 5.0 07/25] arm64: dts: zcu100-revC: Give wifi some time after power-on Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 5.0 08/25] arm64: dts: hikey: " Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 5.0 09/25] arm64: dts: hikey: Revert "Enable HS200 mode on eMMC" Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 5.0 10/25] ARM: dts: exynos: Fix pinctrl definition for eMMC RTSN line on Odroid X2/U3 Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 5.0 11/25] ARM: dts: exynos: Add minimal clkout parameters to Exynos3250 PMU Greg Kroah-Hartman
2019-03-12 17:08 ` Greg Kroah-Hartman [this message]
2019-03-12 17:08 ` [PATCH 5.0 13/25] drm: disable uncached DMA optimization for ARM and arm64 Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 5.0 14/25] media: Revert "media: rc: some events are dropped by userspace" Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 5.0 15/25] Revert "PCI/PME: Implement runtime PM callbacks" Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 5.0 16/25] bpf: Stop the psock parser before canceling its work Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 5.0 17/25] gfs2: Fix missed wakeups in find_insert_glock Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 5.0 18/25] staging: erofs: keep corrupted fs from crashing kernel in erofs_namei() Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 5.0 19/25] staging: erofs: compressed_pages should not be accessed again after freed Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 5.0 20/25] scripts/gdb: replace flags (MS_xyz -> SB_xyz) Greg Kroah-Hartman
2019-03-12 17:08 ` [PATCH 5.0 21/25] ath9k: Avoid OF no-EEPROM quirks without qca,no-eeprom Greg Kroah-Hartman
2019-03-12 17:09 ` [PATCH 5.0 22/25] perf/x86/intel: Make cpuc allocations consistent Greg Kroah-Hartman
2019-03-12 17:09 ` [PATCH 5.0 23/25] perf/x86/intel: Generalize dynamic constraint creation Greg Kroah-Hartman
2019-03-12 17:09 ` [PATCH 5.0 24/25] x86: Add TSX Force Abort CPUID/MSR Greg Kroah-Hartman
2019-03-12 17:09 ` [PATCH 5.0 25/25] perf/x86/intel: Implement support for TSX Force Abort Greg Kroah-Hartman
2019-03-13 8:57 ` [PATCH 5.0 00/25] 5.0.2-stable review Naresh Kamboju
2019-03-13 17:37 ` Jon Hunter
2019-03-13 20:36 ` Guenter Roeck
2019-03-13 20:59 ` Greg Kroah-Hartman
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