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From: Lin Huang <hl@rock-chips.com>
To: seanpaul@chromium.org, airlied@linux.ie, zyw@rock-chips.com,
	kishon@ti.com
Cc: dianders@chromium.org, briannorris@chromium.org,
	linux-rockchip@lists.infradead.org, heiko@sntech.de,
	daniel.vetter@intel.com, jani.nikula@linux.intel.com,
	dri-devel@lists.freedesktop.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, eballetbo@gmail.com,
	robh+dt@kernel.org, devicetree@vger.kernel.org,
	Lin Huang <hl@rock-chips.com>
Subject: [PATCH v6 2/5] Documentation: dt-bindings: phy: add phy_config for Rockchip USB Type-C PHY
Date: Mon, 21 May 2018 17:37:01 +0800	[thread overview]
Message-ID: <1526895424-22894-2-git-send-email-hl@rock-chips.com> (raw)
In-Reply-To: <1526895424-22894-1-git-send-email-hl@rock-chips.com>

If want to do training outside DP Firmware, need phy voltage swing
and pre_emphasis value.

Signed-off-by: Lin Huang <hl@rock-chips.com>
---
Changes in v2:
- None 
Changes in v3:
- modify property description and add this property to Example
Changes in v4:
- None
Changes in v5:
- None
Changes in v6:
- change rockchip,phy_config to rockchip,phy-config and descript it in detail.
 
 .../devicetree/bindings/phy/phy-rockchip-typec.txt | 36 +++++++++++++++++++++-
 1 file changed, 35 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt b/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
index 960da7f..40d5e7a 100644
--- a/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
+++ b/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
@@ -17,7 +17,11 @@ Required properties:
 
 Optional properties:
  - extcon : extcon specifier for the Power Delivery
-
+ - rockchip,phy-config : A list of voltage swing(mV) and pre-emphasis
+			(dB) pairs. They are 3 blocks of 4 entries and
+			correspond to s0p0 ~ s0p3, s1p0 ~ s1p3,
+			s2p0 ~ s2p3, s3p0 ~ s2p3 swing and pre-emphasis
+			values.
 Required nodes : a sub-node is required for each port the phy provides.
 		 The sub-node name is used to identify dp or usb3 port,
 		 and shall be the following entries:
@@ -50,6 +54,21 @@ Example:
 			 <&cru SRST_P_UPHY0_TCPHY>;
 		reset-names = "uphy", "uphy-pipe", "uphy-tcphy";
 
+		rockchip,phy-config = <0x2a 0x00>,
+			<0x1f 0x15>,
+			<0x14 0x22>,
+			<0x02 0x2b>,
+
+			<0x21 0x00>,
+			<0x12 0x15>,
+			<0x02 0x22>,
+			<0 0>,
+
+			<0x15 0x00>,
+			<0x00 0x15>,
+			<0 0>,
+			<0 0>;
+
 		tcphy0_dp: dp-port {
 			#phy-cells = <0>;
 		};
@@ -74,6 +93,21 @@ Example:
 			 <&cru SRST_P_UPHY1_TCPHY>;
 		reset-names = "uphy", "uphy-pipe", "uphy-tcphy";
 
+		rockchip,phy-config = <0x2a 0x00>,
+			<0x1f 0x15>,
+			<0x14 0x22>,
+			<0x02 0x2b>,
+
+			<0x21 0x00>,
+			<0x12 0x15>,
+			<0x02 0x22>,
+			<0 0>,
+
+			<0x15 0x00>,
+			<0x00 0x15>,
+			<0 0>,
+			<0 0>;
+
 		tcphy1_dp: dp-port {
 			#phy-cells = <0>;
 		};
-- 
2.7.4

  reply	other threads:[~2018-05-21  9:37 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-21  9:37 [PATCH v6 1/5] drm/rockchip: add transfer function for cdn-dp Lin Huang
2018-05-21  9:37 ` Lin Huang [this message]
2018-05-22 15:58   ` [PATCH v6 2/5] Documentation: dt-bindings: phy: add phy_config for Rockchip USB Type-C PHY Rob Herring
2018-05-21  9:37 ` [PATCH v6 3/5] soc: rockchip: split rockchip_typec_phy struct to separate header Lin Huang
2018-05-21 13:50   ` Enric Balletbo Serra
2018-05-21  9:37 ` [PATCH v6 4/5] phy: rockchip-typec: support variable phy config value Lin Huang
2018-05-21 14:13   ` Enric Balletbo Serra
2018-05-21  9:37 ` [PATCH v6 5/5] drm/rockchip: support dp training outside dp firmware Lin Huang
2018-05-21 15:22   ` Enric Balletbo Serra
2018-05-22  1:08     ` hl
2018-05-22  7:41       ` Enric Balletbo Serra
2018-05-22 17:06         ` Enric Balletbo Serra
2018-05-23  1:14           ` hl

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