linux-kernel - [PATCH 1/2] platform/chrome: cros_ec_typec: Add TBT pd

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Message-Id: <20200624080926.165107-1-pmalani@chromium.org>
Date:   Wed, 24 Jun 2020 01:09:23 -0700
From:   Prashant Malani <pmalani@...omium.org>
To:     linux-kernel@...r.kernel.org
Cc:     heikki.krogerus@...ux.intel.com,
        Prashant Malani <pmalani@...omium.org>,
        Benson Leung <bleung@...omium.org>,
        Enric Balletbo i Serra <enric.balletbo@...labora.com>,
        Guenter Roeck <groeck@...omium.org>,
        Gwendal Grignou <gwendal@...omium.org>,
        Mark Brown <broonie@...nel.org>,
        Tzung-Bi Shih <tzungbi@...gle.com>,
        Yicheng Li <yichengli@...omium.org>
Subject: [PATCH 1/2] platform/chrome: cros_ec_typec: Add TBT pd_ctrl fields

To support Thunderbolt compatibility mode, synchronize
ec_response_usb_pd_control_v2 with the Chrome EC version, so that
we get the Thunderbolt related control fields and macros.

Signed-off-by: Prashant Malani <pmalani@...omium.org>
---
 .../linux/platform_data/cros_ec_commands.h    | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/include/linux/platform_data/cros_ec_commands.h b/include/linux/platform_data/cros_ec_commands.h
index a7b0fc440c35..b808570bdd04 100644
--- a/include/linux/platform_data/cros_ec_commands.h
+++ b/include/linux/platform_data/cros_ec_commands.h
@@ -4917,15 +4917,26 @@ struct ec_response_usb_pd_control_v1 {
 #define USBC_PD_CC_UFP_ATTACHED	4 /* UFP attached to usbc */
 #define USBC_PD_CC_DFP_ATTACHED	5 /* DPF attached to usbc */
 
+/* Active/Passive Cable */
+#define USB_PD_CTRL_ACTIVE_CABLE        BIT(0)
+/* Optical/Non-optical cable */
+#define USB_PD_CTRL_OPTICAL_CABLE       BIT(1)
+/* 3rd Gen TBT device (or AMA)/2nd gen tbt Adapter */
+#define USB_PD_CTRL_TBT_LEGACY_ADAPTER  BIT(2)
+/* Active Link Uni-Direction */
+#define USB_PD_CTRL_ACTIVE_LINK_UNIDIR  BIT(3)
+
 struct ec_response_usb_pd_control_v2 {
 	uint8_t enabled;
 	uint8_t role;
 	uint8_t polarity;
 	char state[32];
-	uint8_t cc_state; /* USBC_PD_CC_*Encoded cc state */
-	uint8_t dp_mode;  /* Current DP pin mode (MODE_DP_PIN_[A-E]) */
-	/* CL:1500994 Current cable type */
-	uint8_t reserved_cable_type;
+	uint8_t cc_state;	/* enum pd_cc_states representing cc state */
+	uint8_t dp_mode;	/* Current DP pin mode (MODE_DP_PIN_[A-E]) */
+	uint8_t reserved;	/* Reserved for future use */
+	uint8_t control_flags;	/* USB_PD_CTRL_*flags */
+	uint8_t cable_speed;	/* TBT_SS_* cable speed */
+	uint8_t cable_gen;	/* TBT_GEN3_* cable rounded support */
 } __ec_align1;
 
 #define EC_CMD_USB_PD_PORTS 0x0102
-- 
2.27.0.111.gc72c7da667-goog