linux-kernel - [PATCH 03/11] mux: consumer.h: Add MUX_USB

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Date:   Fri,  1 Sep 2017 23:48:37 +0200
From:   Hans de Goede <hdegoede@...hat.com>
To:     MyungJoo Ham <myungjoo.ham@...sung.com>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        Guenter Roeck <linux@...ck-us.net>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Darren Hart <dvhart@...radead.org>,
        Andy Shevchenko <andy@...radead.org>,
        Peter Rosin <peda@...ntia.se>,
        Mathias Nyman <mathias.nyman@...el.com>
Cc:     Hans de Goede <hdegoede@...hat.com>,
        platform-driver-x86@...r.kernel.org, devel@...verdev.osuosl.org,
        Kuppuswamy Sathyanarayanan 
        <sathyanarayanan.kuppuswamy@...ux.intel.com>,
        Sathyanarayanan Kuppuswamy Natarajan <sathyaosid@...il.com>,
        linux-kernel@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-usb@...r.kernel.org
Subject: [PATCH 03/11] mux: consumer.h: Add MUX_USB_* state constant defines

Add MUX_USB_* state constant defines, which can be used by USB
device/host and Type-C polarity/role/altmode mux drivers and consumers
to ensure that they agree on the meaning of the mux_control_select()
state argument.

Signed-off-by: Hans de Goede <hdegoede@...hat.com>
---
 include/linux/mux/consumer.h | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/include/linux/mux/consumer.h b/include/linux/mux/consumer.h
index 912dd48a3a5d..e3ec9b4db962 100644
--- a/include/linux/mux/consumer.h
+++ b/include/linux/mux/consumer.h
@@ -15,6 +15,22 @@
 
 #include <linux/compiler.h>
 
+/*
+ * Mux state values for USB muxes, used for both USB device/host role muxes
+ * as well as for Type-C polarity/role/altmode muxes.
+ *
+ * MUX_USB_POLARITY_INV may be or-ed together with any other mux-state as
+ * inverted-polarity (Type-C plugged in upside down) can happen with any
+ * other mux-state.
+ */
+#define MUX_USB_POLARITY_INV	BIT(0)   /* Polarity inverted bit */
+#define MUX_USB_NONE		(1 << 1) /* Mux open / not connected */
+#define MUX_USB_DEVICE		(2 << 1) /* USB device mode */
+#define MUX_USB_HOST		(3 << 1) /* USB host mode */
+#define MUX_USB_HOST_AND_DP_SRC	(4 << 1) /* USB host + 2 lanes Display Port */
+#define MUX_USB_DP_SRC		(5 << 1) /* 4 lanes Display Port source */
+#define MUX_USB_STATES		(6 << 1)
+
 struct device;
 struct mux_control;
 
-- 
2.13.5