From: Thierry Reding <thierry.reding@gmail.com>
To: Aapo Vienamo <avienamo@nvidia.com>
Cc: Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Jonathan Hunter <jonathanh@nvidia.com>,
Ulf Hansson <ulf.hansson@linaro.org>,
Adrian Hunter <adrian.hunter@intel.com>,
Mikko Perttunen <mperttunen@nvidia.com>,
Stefan Agner <stefan@agner.ch>,
devicetree@vger.kernel.org, linux-tegra@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-mmc@vger.kernel.org
Subject: Re: [PATCH 03/40] dt-bindings: Add Tegra SDHCI pad pdpu offset bindings
Date: Thu, 9 Aug 2018 14:18:18 +0200 [thread overview]
Message-ID: <20180809121818.GQ21639@ulmo> (raw)
In-Reply-To: <1533141150-10511-4-git-send-email-avienamo@nvidia.com>
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On Wed, Aug 01, 2018 at 07:31:53PM +0300, Aapo Vienamo wrote:
> Add bindings documentation for pad pull up and pull down offset values to be
> programmed before executing automatic pad drive strength calibration.
>
> Signed-off-by: Aapo Vienamo <avienamo@nvidia.com>
> ---
> .../bindings/mmc/nvidia,tegra20-sdhci.txt | 36 ++++++++++++++++++++++
> 1 file changed, 36 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/mmc/nvidia,tegra20-sdhci.txt b/Documentation/devicetree/bindings/mmc/nvidia,tegra20-sdhci.txt
> index 90c214d..2e973b5 100644
> --- a/Documentation/devicetree/bindings/mmc/nvidia,tegra20-sdhci.txt
> +++ b/Documentation/devicetree/bindings/mmc/nvidia,tegra20-sdhci.txt
> @@ -24,6 +24,7 @@ Required properties:
> Optional properties:
> - power-gpios : Specify GPIOs for power control
>
> +Optional properties for Tegra210 and Tegra186:
This looks like a stray addition.
> Example:
>
> sdhci@c8000200 {
> @@ -45,6 +46,37 @@ Optional properties for Tegra210 and Tegra186:
> for controllers supporting multiple voltage levels. The order of names
> should correspond to the pin configuration states in pinctrl-0 and
> pinctrl-1.
> +- nvidia,only-1-8-v : The presence of this property indicates that the
> + controller operates at a 1.8 V fixed I/O voltage.
> +- nvidia,pad-autocal-pull-up-offset-3v3,
> + nvidia,pad-autocal-pull-down-offset-3v3 : Specify drive strength
> + calibration offsets for 3.3 V signaling modes.
> +- nvidia,pad-autocal-pull-up-offset-1v8,
> + nvidia,pad-autocal-pull-down-offset-1v8 : Specify drive strength
> + calibration offsets for 1.8 V signaling modes.
> +- nvidia,pad-autocal-pull-up-offset-3v3-timeout,
> + nvidia,pad-autocal-pull-down-offset-3v3-timeout : Specify drive
> + strength used as a fallback in case the automatic calibration times
> + out on a 3.3 V signaling mode.
> +- nvidia,pad-autocal-pull-up-offset-1v8-timeout,
> + nvidia,pad-autocal-pull-down-offset-1v8-timeout : Specify drive
> + strength used as a fallback in case the automatic calibration times
> + out on a 1.8 V signaling mode.
> +- nvidia,pad-autocal-pull-up-offset-sdr104,
> + nvidia,pad-autocal-pull-down-offset-sdr104 : Specify drive strength
> + calibration offsets for SDR104 mode.
> +- nvidia,pad-autocal-pull-up-offset-hs400,
> + nvidia,pad-autocal-pull-down-offset-hs400 : Specify drive strength
> + calibration offsets for HS400 mode.
There's no mention here about how many values each of these properties
needs. I guess given that the property names are singular it implies a
single value.
Thierry
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next prev parent reply other threads:[~2018-08-09 12:18 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-01 16:31 [PATCH 00/40] Tegra SDHCI add support for HS200 and UHS signaling Aapo Vienamo
2018-08-01 16:31 ` [PATCH 01/40] dt-bindings: Add Tegra PMC pad configuration bindings Aapo Vienamo
2018-08-09 12:13 ` Thierry Reding
2018-08-09 16:24 ` Aapo Vienamo
2018-08-01 16:31 ` [PATCH 02/40] dt-bindings: mmc: tegra: Add pad voltage control properties Aapo Vienamo
2018-08-09 12:15 ` Thierry Reding
2018-08-09 16:36 ` Aapo Vienamo
2018-08-01 16:31 ` [PATCH 03/40] dt-bindings: Add Tegra SDHCI pad pdpu offset bindings Aapo Vienamo
2018-08-09 12:18 ` Thierry Reding [this message]
2018-08-01 16:31 ` [PATCH 04/40] dt-bindings: mmc: Add Tegra SDHCI sampling trimmer values Aapo Vienamo
2018-08-01 16:31 ` [PATCH 05/40] soc/tegra: pmc: Fix pad voltage configuration for Tegra186 Aapo Vienamo
2018-08-09 12:20 ` Thierry Reding
2018-08-01 16:31 ` [PATCH 06/40] soc/tegra: pmc: Factor out DPD register bit calculation Aapo Vienamo
2018-08-01 16:31 ` [PATCH 07/40] soc/tegra: pmc: Implement tegra_io_pad_is_powered() Aapo Vienamo
2018-08-09 12:22 ` Thierry Reding
2018-08-01 16:31 ` [PATCH 08/40] soc/tegra: pmc: Use X macro to generate IO pad tables Aapo Vienamo
2018-08-01 16:31 ` [PATCH 09/40] soc/tegra: pmc: Remove public pad voltage APIs Aapo Vienamo
2018-08-01 16:32 ` [PATCH 10/40] soc/tegra: pmc: Implement pad configuration via pinctrl Aapo Vienamo
2018-08-09 12:27 ` Thierry Reding
2018-08-09 12:44 ` Aapo Vienamo
2018-08-09 13:12 ` Thierry Reding
2018-08-01 16:32 ` [PATCH 11/40] mmc: sdhci: Add a quirk to skip clearing the transfer mode register on tuning Aapo Vienamo
2018-08-01 16:32 ` [PATCH 12/40] mmc: tegra: Reconfigure pad voltages during voltage switching Aapo Vienamo
2018-08-09 12:43 ` Thierry Reding
2018-08-09 12:52 ` Aapo Vienamo
2018-08-09 13:14 ` Thierry Reding
2018-08-01 16:32 ` [PATCH 13/40] mmc: tegra: Poll for calibration completion Aapo Vienamo
2018-08-09 12:46 ` Thierry Reding
2018-08-09 12:56 ` Aapo Vienamo
2018-08-09 13:44 ` Thierry Reding
2018-08-01 16:32 ` [PATCH 14/40] mmc: tegra: Set calibration pad voltage reference Aapo Vienamo
2018-08-01 16:32 ` [PATCH 15/40] mmc: tegra: Power on the calibration pad Aapo Vienamo
2018-08-09 12:52 ` Thierry Reding
2018-08-01 16:32 ` [PATCH 16/40] mmc: tegra: Disable card clock during pad calibration Aapo Vienamo
2018-08-09 12:54 ` Thierry Reding
2018-08-01 16:32 ` [PATCH 17/40] mmc: tegra: Program pad autocal offsets from dt Aapo Vienamo
2018-08-01 16:32 ` [PATCH 18/40] mmc: tegra: Perform pad calibration after voltage switch Aapo Vienamo
2018-08-01 16:32 ` [PATCH 19/40] mmc: tegra: Enable pad calibration on Tegra210 and Tegra186 Aapo Vienamo
2018-08-01 16:32 ` [PATCH 20/40] mmc: tegra: Add a workaround for tap value change glitch Aapo Vienamo
2018-08-09 12:58 ` Thierry Reding
2018-08-01 16:32 ` [PATCH 21/40] mmc: tegra: Parse default trim and tap from dt Aapo Vienamo
2018-08-01 16:32 ` [PATCH 22/40] mmc: tegra: Configure default tap values Aapo Vienamo
2018-08-01 16:32 ` [PATCH 23/40] mmc: tegra: Configure default trim value on reset Aapo Vienamo
2018-08-01 16:32 ` [PATCH 24/40] mmc: tegra: Use standard SDHCI tuning on Tegra210 and Tegra186 Aapo Vienamo
2018-08-01 16:32 ` [PATCH 25/40] mmc: sdhci: Add a quirk to disable card clock during tuning Aapo Vienamo
2018-08-01 16:32 ` [PATCH 26/40] mmc: tegra: Enable workaround for tuning transfer mode bug Aapo Vienamo
2018-08-01 16:32 ` [PATCH 27/40] mmc: tegra: Set SDHCI_QUIRK2_TUNE_DIS_CARD_CLK on Tegra210 Aapo Vienamo
2018-08-01 16:32 ` [PATCH 28/40] mmc: tegra: Enable UHS and HS200 modes for Tegra210 Aapo Vienamo
2018-08-01 16:32 ` [PATCH 29/40] mmc: tegra: Enable UHS and HS200 modes for Tegra186 Aapo Vienamo
2018-08-01 16:32 ` [PATCH 30/40] arm64: dts: Add Tegra210 sdmmc pinctrl voltage states Aapo Vienamo
2018-08-01 16:32 ` [PATCH 31/40] arm64: dts: Add Tegra186 " Aapo Vienamo
2018-08-01 16:32 ` [PATCH 32/40] arm64: dts: tegra210-p2180: Allow ldo2 to go down to 1.8 V Aapo Vienamo
2018-08-01 16:32 ` [PATCH 33/40] arm64: dts: tegra210-p2180: Correct sdmmc4 vqmmc-supply Aapo Vienamo
2018-08-01 16:32 ` [PATCH 34/40] arm64: dts: tegra210-p2597: Remove no-1-8-v from sdmmc1 Aapo Vienamo
2018-08-01 16:32 ` [PATCH 35/40] arm64: dts: tegra186: Add sdmmc pad auto calibration offsets Aapo Vienamo
2018-08-01 16:32 ` [PATCH 36/40] arm64: dts: tegra210: " Aapo Vienamo
2018-08-01 16:32 ` [PATCH 37/40] arm64: dts: tegra210: Add SDHCI tap and trim values Aapo Vienamo
2018-08-01 16:32 ` [PATCH 38/40] arm64: dts: tegra186: " Aapo Vienamo
2018-08-01 16:32 ` [PATCH 39/40] arm64: dts: tegra186: Assign clocks for sdmmc1 and sdmmc4 Aapo Vienamo
2018-08-01 16:32 ` [PATCH 40/40] arm64: dts: tegra210: " Aapo Vienamo
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