From c497231e1f1c21e0fb86d627d3aecf9dd0625c07 Mon Sep 17 00:00:00 2001 From: Russell King Date: Tue, 24 Jun 2014 11:19:42 +0100 Subject: [PATCH] dt-bindings: ata: add ahci_imx electrical properties Add the documentation for the electrical properties for the iMX SATA controller. There are many values for these, and listing them would be error prone. Refer readers to the device documentation and driver source code for these details. Signed-off-by: Russell King Reviewed-by: Shawn Guo Signed-off-by: Tejun Heo --- Documentation/devicetree/bindings/ata/imx-sata.txt | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/Documentation/devicetree/bindings/ata/imx-sata.txt b/Documentation/devicetree/bindings/ata/imx-sata.txt index aeb99dd986b09..a13f0f6037767 100644 --- a/Documentation/devicetree/bindings/ata/imx-sata.txt +++ b/Documentation/devicetree/bindings/ata/imx-sata.txt @@ -13,6 +13,14 @@ Required properties: required entry in clock-names - clock-names : should include "sata", "sata_ref" and "ahb" entries +Optional properties: +- fsl,transmit-level-mV : transmit voltage level, in millivolts. +- fsl,transmit-boost-mdB : transmit boost level, in milli-decibels +- fsl,transmit-atten-16ths : transmit attenuation, in 16ths +- fsl,receive-eq-mdB : receive equalisation, in milli-decibels + Please refer to the technical documentation or the driver source code + for the list of legal values for these options. + Examples: sata@02200000 { -- 2.39.5