Re: [PATCH v3 02/38] dt-bindings: mmc: tegra: Add pad voltage control properties
From: Ulf Hansson <hidden>
Date: 2018-08-31 13:15:39
Also in:
linux-mmc, linux-tegra, lkml
On 30 August 2018 at 17:06, Aapo Vienamo [off-list ref] wrote:
Document the pinctrl bindings used by the SDHCI driver to reconfigure pad voltages on controllers supporting multiple voltage levels. Signed-off-by: Aapo Vienamo <redacted> Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com> Reviewed-by: Rob Herring <robh@kernel.org> Acked-by: Thierry Reding <redacted>
Applied for next, thanks! Kind regards Uffe
quoted hunk ↗ jump to hunk
--- .../bindings/mmc/nvidia,tegra20-sdhci.txt | 22 +++++++++++++++++++ 1 file changed, 22 insertions(+)diff --git a/Documentation/devicetree/bindings/mmc/nvidia,tegra20-sdhci.txt b/Documentation/devicetree/bindings/mmc/nvidia,tegra20-sdhci.txt index 9bce57862ed6..90c214dbfb16 100644 --- a/Documentation/devicetree/bindings/mmc/nvidia,tegra20-sdhci.txt +++ b/Documentation/devicetree/bindings/mmc/nvidia,tegra20-sdhci.txt@@ -38,3 +38,25 @@ sdhci@c8000200 { power-gpios = <&gpio 155 0>; /* gpio PT3 */ bus-width = <8>; }; + +Optional properties for Tegra210 and Tegra186: +- pinctrl-names, pinctrl-0, pinctrl-1 : Specify pad voltage + configurations. Valid pinctrl-names are "sdmmc-3v3" and "sdmmc-1v8" + for controllers supporting multiple voltage levels. The order of names + should correspond to the pin configuration states in pinctrl-0 and + pinctrl-1. + +Example: +sdhci@700b0000 { + compatible = "nvidia,tegra210-sdhci", "nvidia,tegra124-sdhci"; + reg = <0x0 0x700b0000 0x0 0x200>; + interrupts = <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&tegra_car TEGRA210_CLK_SDMMC1>; + clock-names = "sdhci"; + resets = <&tegra_car 14>; + reset-names = "sdhci"; + pinctrl-names = "sdmmc-3v3", "sdmmc-1v8"; + pinctrl-0 = <&sdmmc1_3v3>; + pinctrl-1 = <&sdmmc1_1v8>; + status = "disabled"; +}; --2.18.0