linux-kernel - [RFC PATCH v2 0/4] UFS on APQ8098

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Message-ID: <88e04336-723f-c157-0384-c5054a73e0a4@free.fr>
Date:   Wed, 16 Jan 2019 11:50:20 +0100
From:   Marc Gonzalez <marc.w.gonzalez@...e.fr>
To:     MSM <linux-arm-msm@...r.kernel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Jeffrey Hugo <jhugo@...eaurora.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Andy Gross <andy.gross@...aro.org>
Subject: [RFC PATCH v2 0/4] UFS on APQ8098

Hello,

After weeks (literally!) of poking the system at random, Jeffrey found why UFS
refused to work on APQ8098: we were not setting the load on the vregs.

Difference between v1 and v2:
- New patch to add 'regulator-allow-set-load' prop to all vreg nodes
- Rename rpmcc node to 'clock-controller' + Add Review tags
- Drop UFS pinctrl gymnastics (not required, probably left enabled in bootloader)
- Delete GCC_UFS_ICE_CORE_CLK (ICE not used upstream, I think)
- Fix sizes of ufsphy register areas based on Jeffrey's feedback
- Hack ufshcd_set_vccq_rail_unused into a NOP to work around lock up + reboot


Marc Gonzalez (4):
  arm64: dts: qcom: msm8998: Add rpmcc node
  arm64: dts: qcom: msm8998: Add UFS nodes
  Add regulator-allow-set-load
  ufshcd_set_vccq_rail_unused locks up the board

 arch/arm64/boot/dts/qcom/msm8998-mtp.dtsi | 52 +++++++++++++++++
 arch/arm64/boot/dts/qcom/msm8998.dtsi     | 69 +++++++++++++++++++++++
 drivers/scsi/ufs/ufshcd.c                 |  1 +
 3 files changed, 122 insertions(+)

-- 
2.17.1