linux-kernel - [PATCH] soc: qcom: pmic_glink: disable UCSI on sc8280xp

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Message-ID: <20231208125730.10323-1-johan+linaro@kernel.org>
Date:   Fri,  8 Dec 2023 13:57:30 +0100
From:   Johan Hovold <johan+linaro@...nel.org>
To:     Bjorn Andersson <andersson@...nel.org>
Cc:     Andy Gross <agross@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        Johan Hovold <johan+linaro@...nel.org>
Subject: [PATCH] soc: qcom: pmic_glink: disable UCSI on sc8280xp

Enabling UCSI on sc8280xp and the Lenovo ThinkPad X13s in particular
results in a number of errors and timeouts during boot:

[    9.012421] ucsi_glink.pmic_glink_ucsi pmic_glink.ucsi.0: GET_CONNECTOR_STATUS failed (-95)
[   14.047379] ucsi_glink.pmic_glink_ucsi pmic_glink.ucsi.0: timeout waiting for UCSI sync write response
[   14.050708] ucsi_glink.pmic_glink_ucsi pmic_glink.ucsi.0: GET_CONNECTOR_STATUS failed (-110)
[   20.192382] ucsi_glink.pmic_glink_ucsi pmic_glink.ucsi.0: timeout waiting for UCSI sync write response
[   20.192542] ucsi_glink.pmic_glink_ucsi pmic_glink.ucsi.0: GET_CONNECTOR_STATUS failed (-110)

Disable UCSI on sc8280xp until this has been resolved.

Fixes: 4db09e7b967b ("soc: qcom: pmic_glink: enable UCSI by default)
Link: https://lore.kernel.org/r/ZXL5jvDHr-MuxMoz@hovoldconsulting.com
Signed-off-by: Johan Hovold <johan+linaro@...nel.org>
---
 drivers/soc/qcom/pmic_glink.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/soc/qcom/pmic_glink.c b/drivers/soc/qcom/pmic_glink.c
index 71d8901a9389..511aa40842a1 100644
--- a/drivers/soc/qcom/pmic_glink.c
+++ b/drivers/soc/qcom/pmic_glink.c
@@ -342,6 +342,7 @@ static const unsigned long pmic_glink_sm8450_client_mask = BIT(PMIC_GLINK_CLIENT
 
 static const struct of_device_id pmic_glink_of_match[] = {
 	{ .compatible = "qcom,sc8180x-pmic-glink", .data = &pmic_glink_sc8180x_client_mask },
+	{ .compatible = "qcom,sc8280xp-pmic-glink", .data = &pmic_glink_sc8180x_client_mask },
 	{ .compatible = "qcom,pmic-glink", .data = &pmic_glink_sm8450_client_mask },
 	{}
 };
-- 
2.41.0