1. 01 Mar, 2019 1 commit
    • Marek Szyprowski's avatar
      ARM: dts: exynos: Fix max voltage for buck8 regulator on Odroid XU3/XU4 · a3238924
      Marek Szyprowski authored
      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 56b5d4ea
      ("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: default avatarMarek Szyprowski <m.szyprowski@samsung.com>
      Fixes: 86a2d2ac ("ARM: dts: Add dts file for Odroid XU3 board")
      Fixes: 56b5d4ea ("regulator: s2mps11: Fix steps for buck7, buck8 and LDO35")
      Cc: <stable@vger.kernel.org>
      Signed-off-by: default avatarKrzysztof Kozlowski <krzk@kernel.org>
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      a3238924
  2. 22 Feb, 2019 2 commits
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  5. 17 Feb, 2019 1 commit
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