linux-kernel - [PATCH 00/40] Tegra SDHCI add support for HS200 and UHS signaling

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Message-ID: <1533141150-10511-1-git-send-email-avienamo@nvidia.com>
Date:   Wed, 1 Aug 2018 19:31:50 +0300
From:   Aapo Vienamo <avienamo@...dia.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Mikko Perttunen <mperttunen@...dia.com>,
        Stefan Agner <stefan@...er.ch>
CC:     <devicetree@...r.kernel.org>, <linux-tegra@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-mmc@...r.kernel.org>,
        Aapo Vienamo <avienamo@...dia.com>
Subject: [PATCH 00/40] Tegra SDHCI add support for HS200 and UHS signaling

Hi all,

This series implements support for faster signaling modes on Tegra
SDHCI controllers. This series consist of several parts: changes
requried for 1.8 V signaling and pad control, pad calibration, and
tuning. Following earlies patch sets have been merged into this
larger set: "Tegra PMC pinctrl pad configuration", "Tegra SDHCI enable
1.8 V signaling on Tegar210 and Tegra186", "Tegra SDHCI update the
padautocal procedure". Also the patches for enabling SDHCI tuning
are added.

Changelog:
v1:
	- Probe the regulator voltage capabilities to determine whether pinctrl
	  is needed in tegra_sdhci_r eset
	- Don't remove tegra_sdhci_voltage_switch()
	- Use dev_warn() in tegra_sdhci_init_pinctrl_info()
	- Don't change start_signal_voltage_switch callback if pinctrl info
	  invalid
	- Only call udelay(1) on enable in tegra_sdhci_configure_cal_pad()
	- Add nvidia, prefix to pad autocal offset dt props in the example

See the original patch sets for earlier changelogs.

Aapo Vienamo (40):
  dt-bindings: Add Tegra PMC pad configuration bindings
  dt-bindings: mmc: tegra: Add pad voltage control properties
  dt-bindings: Add Tegra SDHCI pad pdpu offset bindings
  dt-bindings: mmc: Add Tegra SDHCI sampling trimmer values
  soc/tegra: pmc: Fix pad voltage configuration for Tegra186
  soc/tegra: pmc: Factor out DPD register bit calculation
  soc/tegra: pmc: Implement tegra_io_pad_is_powered()
  soc/tegra: pmc: Use X macro to generate IO pad tables
  soc/tegra: pmc: Remove public pad voltage APIs
  soc/tegra: pmc: Implement pad configuration via pinctrl
  mmc: sdhci: Add a quirk to skip clearing the transfer mode register on
    tuning
  mmc: tegra: Reconfigure pad voltages during voltage switching
  mmc: tegra: Poll for calibration completion
  mmc: tegra: Set calibration pad voltage reference
  mmc: tegra: Power on the calibration pad
  mmc: tegra: Disable card clock during pad calibration
  mmc: tegra: Program pad autocal offsets from dt
  mmc: tegra: Perform pad calibration after voltage switch
  mmc: tegra: Enable pad calibration on Tegra210 and Tegra186
  mmc: tegra: Add a workaround for tap value change glitch
  mmc: tegra: Parse default trim and tap from dt
  mmc: tegra: Configure default tap values
  mmc: tegra: Configure default trim value on reset
  mmc: tegra: Use standard SDHCI tuning on Tegra210 and Tegra186
  mmc: sdhci: Add a quirk to disable card clock during tuning
  mmc: tegra: Enable workaround for tuning transfer mode bug
  mmc: tegra: Set SDHCI_QUIRK2_TUNE_DIS_CARD_CLK on Tegra210
  mmc: tegra: Enable UHS and HS200 modes for Tegra210
  mmc: tegra: Enable UHS and HS200 modes for Tegra186
  arm64: dts: Add Tegra210 sdmmc pinctrl voltage states
  arm64: dts: Add Tegra186 sdmmc pinctrl voltage states
  arm64: dts: tegra210-p2180: Allow ldo2 to go down to 1.8 V
  arm64: dts: tegra210-p2180: Correct sdmmc4 vqmmc-supply
  arm64: dts: tegra210-p2597: Remove no-1-8-v from sdmmc1
  arm64: dts: tegra186: Add sdmmc pad auto calibration offsets
  arm64: dts: tegra210: Add sdmmc pad auto calibration offsets
  arm64: dts: tegra210: Add SDHCI tap and trim values
  arm64: dts: tegra186: Add SDHCI tap and trim values
  arm64: dts: tegra186: Assign clocks for sdmmc1 and sdmmc4
  arm64: dts: tegra210: Assign clocks for sdmmc1 and sdmmc4

 .../bindings/arm/tegra/nvidia,tegra186-pmc.txt     |  92 ++++
 .../bindings/arm/tegra/nvidia,tegra20-pmc.txt      | 103 ++++
 .../bindings/mmc/nvidia,tegra20-sdhci.txt          |  69 +++
 arch/arm64/boot/dts/nvidia/tegra186.dtsi           |  74 +++
 arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi     |  12 +-
 arch/arm64/boot/dts/nvidia/tegra210-p2597.dtsi     |   1 -
 arch/arm64/boot/dts/nvidia/tegra210.dtsi           |  55 ++
 drivers/mmc/host/sdhci-tegra.c                     | 553 +++++++++++++++++++--
 drivers/mmc/host/sdhci.c                           |  21 +
 drivers/mmc/host/sdhci.h                           |   4 +
 drivers/soc/tegra/pmc.c                            | 512 ++++++++++++++-----
 include/dt-bindings/pinctrl/pinctrl-tegra-io-pad.h |  18 +
 include/soc/tegra/pmc.h                            |  20 +-
 13 files changed, 1321 insertions(+), 213 deletions(-)
 create mode 100644 include/dt-bindings/pinctrl/pinctrl-tegra-io-pad.h

-- 
2.7.4