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([10.237.72.28]) by fmsmga001.fm.intel.com with ESMTP; 07 Feb 2024 06:59:00 -0800 From: Heikki Krogerus To: Prashant Malani , Greg Kroah-Hartman Cc: Benson Leung , Tzung-Bi Shih , Guenter Roeck , Emilie Roberts , "Nyman, Mathias" , "Regupathy, Rajaram" , "Radjacoumar, Shyam Sundar" , Samuel Jacob , linux-usb@vger.kernel.org, chrome-platform@lists.linux.dev, linux-kernel@vger.kernel.org, Uday Bhat Subject: [PATCH 2/2] platform/chrome: cros_ec_typec: Make sure the USB role switch has PLD Date: Wed, 7 Feb 2024 16:58:51 +0200 Message-ID: <20240207145851.1603237-3-heikki.krogerus@linux.intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240207145851.1603237-1-heikki.krogerus@linux.intel.com> References: <20240207145851.1603237-1-heikki.krogerus@linux.intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1790268742696753716 X-GMAIL-MSGID: 1790271920501514921 The USB role switch does not always have the _PLD (Physical Location of Device) in ACPI tables. If it's missing, assigning the PLD hash of the port to the switch. That should guarantee that the USB Type-C port mapping code is always able to find the connection between the two (the port and the switch). Tested-by: Uday Bhat Signed-off-by: Heikki Krogerus --- drivers/platform/chrome/cros_ec_typec.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/platform/chrome/cros_ec_typec.c b/drivers/platform/chrome/cros_ec_typec.c index 2b2f14a1b711..5c14e8db08b5 100644 --- a/drivers/platform/chrome/cros_ec_typec.c +++ b/drivers/platform/chrome/cros_ec_typec.c @@ -28,6 +28,7 @@ static int cros_typec_parse_port_props(struct typec_capability *cap, struct fwnode_handle *fwnode, struct device *dev) { + struct fwnode_handle *sw_fwnode; const char *buf; int ret; @@ -66,6 +67,16 @@ static int cros_typec_parse_port_props(struct typec_capability *cap, cap->prefer_role = ret; } + /* Assing the USB role switch the correct pld_crc if it's missing. */ + sw_fwnode = fwnode_find_reference(fwnode, "usb-role-switch", 0); + if (!IS_ERR_OR_NULL(sw_fwnode)) { + struct acpi_device *adev = to_acpi_device_node(sw_fwnode); + + if (adev && !adev->pld_crc) + adev->pld_crc = to_acpi_device_node(fwnode)->pld_crc; + fwnode_handle_put(sw_fwnode); + } + cap->fwnode = fwnode; return 0;