From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752770AbcF1MY7 (ORCPT ); Tue, 28 Jun 2016 08:24:59 -0400 Received: from mail-pf0-f196.google.com ([209.85.192.196]:33113 "EHLO mail-pf0-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752230AbcF1MY4 (ORCPT ); Tue, 28 Jun 2016 08:24:56 -0400 From: Chris Zhong To: dianders@chromium.org, tfiga@chromium.org, heiko@sntech.de, yzq@rock-chips.com, groeck@chromium.org, myungjoo.ham@samsung.com, cw00.choi@samsung.com, wulf@rock-chips.com Cc: linux-rockchip@lists.infradead.org, Chris Zhong , linux-kernel@vger.kernel.org Subject: [v4 PATCH 1/5] extcon: Add Type-C and DP support Date: Tue, 28 Jun 2016 20:24:37 +0800 Message-Id: <1467116681-9330-2-git-send-email-zyw@rock-chips.com> X-Mailer: git-send-email 2.6.3 In-Reply-To: <1467116681-9330-1-git-send-email-zyw@rock-chips.com> References: <1467116681-9330-1-git-send-email-zyw@rock-chips.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add EXTCON_DISP_DP for the Display external connector. For Type-C connector the DisplayPort can work as an Alternate Mode(VESA DisplayPort Alt Mode on USB Type-C Standard). At this mode, there is some information need to be supplied by PowerDelivery or other mode detecter: port orientation and pin assignments, so add these 2 virtual cable: EXTCON_TYPEC_POLARITY and EXTCON_TYPEC_PIN_ASSIGN. If EXTCON_TYPEC_POLARITY is attached, the Type-C get flip orientation. IF EXTCON_TYPEC_PIN_ASSIGN is attached, Type-C get Pin_Assignment_C(for DP only mode) or Pin_Assignment_D(for DP + USB3 mode), the default Assignment is A(for DP only mode) or B(for DP + USB3 mode). Signed-off-by: Chris Zhong --- Changes in v4: - remove DP alt mode Changes in v3: None Changes in v2: None Changes in v1: None drivers/extcon/extcon.c | 5 +++++ include/linux/extcon.h | 5 +++++ 2 files changed, 10 insertions(+) diff --git a/drivers/extcon/extcon.c b/drivers/extcon/extcon.c index 21a123c..44a575c 100644 --- a/drivers/extcon/extcon.c +++ b/drivers/extcon/extcon.c @@ -53,6 +53,10 @@ static const char *extcon_name[] = { [EXTCON_CHG_USB_FAST] = "FAST-CHARGER", [EXTCON_CHG_USB_SLOW] = "SLOW-CHARGER", + /* Type-c connector */ + [EXTCON_TYPEC_POLARITY] = "TYPE-C-POLARITY", + [EXTCON_TYPEC_PIN_ASSIGN] = "TYPE-C-PIN-ASSIGN", + /* Jack external connector */ [EXTCON_JACK_MICROPHONE] = "MICROPHONE", [EXTCON_JACK_HEADPHONE] = "HEADPHONE", @@ -68,6 +72,7 @@ static const char *extcon_name[] = { [EXTCON_DISP_MHL] = "MHL", [EXTCON_DISP_DVI] = "DVI", [EXTCON_DISP_VGA] = "VGA", + [EXTCON_DISP_DP] = "DP", /* Miscellaneous external connector */ [EXTCON_DOCK] = "DOCK", diff --git a/include/linux/extcon.h b/include/linux/extcon.h index 7abf674..38a5640 100644 --- a/include/linux/extcon.h +++ b/include/linux/extcon.h @@ -45,6 +45,10 @@ #define EXTCON_CHG_USB_FAST 9 #define EXTCON_CHG_USB_SLOW 10 +/* Type-c connector */ +#define EXTCON_TYPEC_POLARITY 11 /* Typec-C plug orientation */ +#define EXTCON_TYPEC_PIN_ASSIGN 12 /* Typec-C pin Assignment */ + /* Jack external connector */ #define EXTCON_JACK_MICROPHONE 20 #define EXTCON_JACK_HEADPHONE 21 @@ -60,6 +64,7 @@ #define EXTCON_DISP_MHL 41 /* Mobile High-Definition Link */ #define EXTCON_DISP_DVI 42 /* Digital Visual Interface */ #define EXTCON_DISP_VGA 43 /* Video Graphics Array */ +#define EXTCON_DISP_DP 44 /* Display Port */ /* Miscellaneous external connector */ #define EXTCON_DOCK 60 -- 2.6.3