linux-kernel - [PATCH RESEND v2] hwspinlock: qcom: Remove IPQ6018 SOC specific compatible

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Message-ID: <20240111124521.3951775-1-quic_viswanat@quicinc.com>
Date: Thu, 11 Jan 2024 18:15:21 +0530
From: Vignesh Viswanathan <quic_viswanat@...cinc.com>
To: <andersson@...nel.org>, <konrad.dybcio@...aro.org>,
        <baolin.wang@...ux.alibaba.com>, <krzysztof.kozlowski@...aro.org>,
        <linux-arm-msm@...r.kernel.org>, <linux-remoteproc@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
CC: <stable@...r.kernel.org>, Vignesh Viswanathan <quic_viswanat@...cinc.com>
Subject: [PATCH RESEND v2] hwspinlock: qcom: Remove IPQ6018 SOC specific compatible

IPQ6018 has 32 tcsr_mutex hwlock registers with stride 0x1000.
The compatible string qcom,ipq6018-tcsr-mutex is mapped to
of_msm8226_tcsr_mutex which has 32 locks configured with stride of 0x80
and doesn't match the HW present in IPQ6018.

Remove IPQ6018 specific compatible string so that it fallsback to
of_tcsr_mutex data which maps to the correct configuration for IPQ6018.

Cc: stable@...r.kernel.org
Fixes: 5d4753f741d8 ("hwspinlock: qcom: add support for MMIO on older SoCs")
Signed-off-by: Vignesh Viswanathan <quic_viswanat@...cinc.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>
---

This patch was already posted [2] and applied [3], but missing in the
linux-next TIP. Resending with r-b tags so that it can be picked up
again.

[2] https://lore.kernel.org/all/20230905095535.1263113-3-quic_viswanat@quicinc.com/
[3] https://lore.kernel.org/all/169522934567.2501390.1112201061322984444.b4-ty@kernel.org/

Changes in v2:
 - Updated commit message
 - Added Fixes and stable tags

 drivers/hwspinlock/qcom_hwspinlock.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/hwspinlock/qcom_hwspinlock.c b/drivers/hwspinlock/qcom_hwspinlock.c
index a0fd67fd2934..814dfe8697bf 100644
--- a/drivers/hwspinlock/qcom_hwspinlock.c
+++ b/drivers/hwspinlock/qcom_hwspinlock.c
@@ -115,7 +115,6 @@ static const struct of_device_id qcom_hwspinlock_of_match[] = {
 	{ .compatible = "qcom,sfpb-mutex", .data = &of_sfpb_mutex },
 	{ .compatible = "qcom,tcsr-mutex", .data = &of_tcsr_mutex },
 	{ .compatible = "qcom,apq8084-tcsr-mutex", .data = &of_msm8226_tcsr_mutex },
-	{ .compatible = "qcom,ipq6018-tcsr-mutex", .data = &of_msm8226_tcsr_mutex },
 	{ .compatible = "qcom,msm8226-tcsr-mutex", .data = &of_msm8226_tcsr_mutex },
 	{ .compatible = "qcom,msm8974-tcsr-mutex", .data = &of_msm8226_tcsr_mutex },
 	{ .compatible = "qcom,msm8994-tcsr-mutex", .data = &of_msm8226_tcsr_mutex },
-- 
2.41.0