From: Baolin Wang <baolin.wang@linaro.org>
To: myungjoo.ham@samsung.com, cw00.choi@samsung.com, wens@csie.org,
kishon@ti.com, heiko@sntech.de
Cc: linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-rockchip@lists.infradead.org,
linaro-kernel@lists.linaro.org, baolin.wang@linaro.org,
broonie@kernel.org, neilb@suse.com
Subject: [PATCH 1/3] extcon: Add documentation for EXTCON_CHG_USB_* and EXTCON_USB_*
Date: Wed, 21 Dec 2016 14:10:47 +0800 [thread overview]
Message-ID: <7b9836ce2ca34118a2acd1ea113605a5f13b4439.1482300213.git.baolin.wang@linaro.org> (raw)
Current there is both "EXTCON_USB" and "EXTCON_CHG_USB_SDP" which
both seem to suggest a standard downstream port. But there is no
documentation describing how these relate.
Thus add documentation to describe EXTCON_CHG_USB_SDP should always
appear together with EXTCON_USB, and EXTCON_CHG_USB_ACA would normally
appear with EXTCON_USB_HOST.
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
---
include/linux/extcon.h | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/include/linux/extcon.h b/include/linux/extcon.h
index b871c0c..6498b05 100644
--- a/include/linux/extcon.h
+++ b/include/linux/extcon.h
@@ -46,7 +46,14 @@
#define EXTCON_USB 1
#define EXTCON_USB_HOST 2
-/* Charging external connector */
+/*
+ * Charging external connector
+ *
+ * When one SDP charger connector was reported, we should also report
+ * the USB connector, which means EXTCON_CHG_USB_SDP should always
+ * appear together with EXTCON_USB. The same as ACA charger connector,
+ * EXTCON_CHG_USB_ACA should always appear with EXTCON_USB_HOST.
+ */
#define EXTCON_CHG_USB_SDP 5 /* Standard Downstream Port */
#define EXTCON_CHG_USB_DCP 6 /* Dedicated Charging Port */
#define EXTCON_CHG_USB_CDP 7 /* Charging Downstream Port */
--
1.7.9.5
next reply other threads:[~2016-12-21 6:11 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20161221061321epcas2p196fd90254d59164e1195840bdd546fa7@epcas2p1.samsung.com>
2016-12-21 6:10 ` Baolin Wang [this message]
2016-12-21 6:10 ` [PATCH 2/3] extcon: axp288: Set EXTCON_USB when EXTCON_CHG_USB_SDP was set Baolin Wang
2016-12-21 7:22 ` Chanwoo Choi
2016-12-21 7:55 ` Baolin Wang
2016-12-21 7:59 ` Chanwoo Choi
2016-12-21 6:10 ` [PATCH 3/3] phy: rockchip-inno-usb2: " Baolin Wang
2016-12-21 7:29 ` Chanwoo Choi
2016-12-21 7:57 ` Baolin Wang
2016-12-21 7:20 ` [PATCH 1/3] extcon: Add documentation for EXTCON_CHG_USB_* and EXTCON_USB_* Chanwoo Choi
2016-12-21 7:53 ` Baolin Wang
2016-12-21 7:58 ` Chanwoo Choi
2016-12-21 7:59 ` Baolin Wang
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