linux-kernel - [PATCH] usb: typec: ucsi: fix UCSI on SM8550 & SM8650 Qualcomm devices

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Date: Fri, 23 Feb 2024 10:40:40 +0100
From: Neil Armstrong <neil.armstrong@...aro.org>
To: Heikki Krogerus <heikki.krogerus@...ux.intel.com>, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-arm-msm@...r.kernel.org, Neil Armstrong <neil.armstrong@...aro.org>
Subject: [PATCH] usb: typec: ucsi: fix UCSI on SM8550 & SM8650 Qualcomm
 devices

On SM8550 and SM8650 Qualcomm platforms a call to UCSI_GET_PDOS for
non-PD partners will cause a firmware crash with no
easy way to recover from it.

Add UCSI_NO_PARTNER_PDOS quirk for those platform until we find
a way to properly handle the crash.

Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>
---
 drivers/usb/typec/ucsi/ucsi_glink.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/typec/ucsi/ucsi_glink.c b/drivers/usb/typec/ucsi/ucsi_glink.c
index 0bd3f6dee678..932e7bf69447 100644
--- a/drivers/usb/typec/ucsi/ucsi_glink.c
+++ b/drivers/usb/typec/ucsi/ucsi_glink.c
@@ -302,6 +302,7 @@ static const struct of_device_id pmic_glink_ucsi_of_quirks[] = {
 	{ .compatible = "qcom,sc8180x-pmic-glink", .data = (void *)UCSI_NO_PARTNER_PDOS, },
 	{ .compatible = "qcom,sc8280xp-pmic-glink", .data = (void *)UCSI_NO_PARTNER_PDOS, },
 	{ .compatible = "qcom,sm8350-pmic-glink", .data = (void *)UCSI_NO_PARTNER_PDOS, },
+	{ .compatible = "qcom,sm8550-pmic-glink", .data = (void *)UCSI_NO_PARTNER_PDOS, },
 	{}
 };
 

---
base-commit: 33e1d31873f87d119e5120b88cd350efa68ef276
change-id: 20240223-topic-sm8550-upstream-ucsi-no-pdos-62fdad669f90

Best regards,
-- 
Neil Armstrong <neil.armstrong@...aro.org>