From 6e1c2241f4cecfc21f26f44179d04217c8390338 Mon Sep 17 00:00:00 2001 From: Badhri Jagan Sridharan Date: Wed, 15 Jul 2020 20:41:28 -0700 Subject: usb: typec: tcpm: Stay in BIST mode till hardreset or unattached MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Port starts to toggle when transitioning to unattached state. This is incorrect while in BIST mode. 6.4.3.1 BIST Carrier Mode Upon receipt of a BIST Message, with a BIST Carrier Mode BIST Data Object, the UUT Shall send out a continuous string of BMC encoded alternating "1"s and “0”s. The UUT Shall exit the Continuous BIST Mode within tBISTContMode of this Continuous BIST Mode being enabled(see Section 6.6.7.2). 6.4.3.2 BIST Test Data Upon receipt of a BIST Message, with a BIST Test Data BIST Data Object, the UUT Shall return a GoodCRC Message and Shall enter a test mode in which it sends no further Messages except for GoodCRC Messages in response to received Messages. See Section 5.9.2 for the definition of the Test Data Frame. The test Shall be ended by sending Hard Reset Signaling to reset the UUT. Signed-off-by: Badhri Jagan Sridharan Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/20200716034128.1251728-3-badhri@google.com Signed-off-by: Greg Kroah-Hartman --- include/linux/usb/pd.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux/usb') diff --git a/include/linux/usb/pd.h b/include/linux/usb/pd.h index a665d7f21142..b6c233e79bd4 100644 --- a/include/linux/usb/pd.h +++ b/include/linux/usb/pd.h @@ -483,4 +483,5 @@ static inline unsigned int rdo_max_power(u32 rdo) #define PD_N_CAPS_COUNT (PD_T_NO_RESPONSE / PD_T_SEND_SOURCE_CAP) #define PD_N_HARD_RESET_COUNT 2 +#define PD_T_BIST_CONT_MODE 50 /* 30 - 60 ms */ #endif /* __LINUX_USB_PD_H */ -- cgit v1.2.3