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From: Sumit Gupta <sumitg@nvidia.com>
To: <treding@nvidia.com>, <jonathanh@nvidia.com>, <robh@kernel.org>,
	<krzk+dt@kernel.org>, <conor+dt@kernel.org>,
	<linux-tegra@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<devicetree@vger.kernel.org>
Cc: <--to=tbergstrom@nvidia.com>, <bbasu@nvidia.com>, <sumitg@nvidia.com>
Subject: [Patch 1/8] soc: tegra: cbb: clear err force register with err status
Date: Fri, 30 May 2025 19:03:29 +0530	[thread overview]
Message-ID: <20250530133336.1419971-2-sumitg@nvidia.com> (raw)
In-Reply-To: <20250530133336.1419971-1-sumitg@nvidia.com>

When error is injected with the ERR_FORCE register, then this
register is not auto cleared on clearing the ERR_STATUS register.
This causes repeated interrupts on error injection. To fix, set
the ERR_FORCE to zero along with clearing the ERR_STATUS register
after handling error.

Fixes: fc2f151d2314 ("soc/tegra: cbb: Add driver for Tegra234 CBB 2.0")
Signed-off-by: Sumit Gupta <sumitg@nvidia.com>
---
 drivers/soc/tegra/cbb/tegra234-cbb.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/soc/tegra/cbb/tegra234-cbb.c b/drivers/soc/tegra/cbb/tegra234-cbb.c
index c74629af9bb5..1da31ead2b5e 100644
--- a/drivers/soc/tegra/cbb/tegra234-cbb.c
+++ b/drivers/soc/tegra/cbb/tegra234-cbb.c
@@ -185,6 +185,8 @@ static void tegra234_cbb_error_clear(struct tegra_cbb *cbb)
 {
 	struct tegra234_cbb *priv = to_tegra234_cbb(cbb);
 
+	writel(0, priv->mon + FABRIC_MN_MASTER_ERR_FORCE_0);
+
 	writel(0x3f, priv->mon + FABRIC_MN_MASTER_ERR_STATUS_0);
 	dsb(sy);
 }
-- 
2.25.1


  reply	other threads:[~2025-05-30 13:34 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-05-30 13:33 [Patch 0/8] Support for Tegra264 and GB10 in CBB driver Sumit Gupta
2025-05-30 13:33 ` Sumit Gupta [this message]
2025-05-30 13:33 ` [Patch 2/8] soc: tegra: cbb: change master-slave to initiator-target Sumit Gupta
2025-05-30 13:33 ` [Patch 3/8] soc: tegra: cbb: make error interrupt enable and status per SoC Sumit Gupta
2025-05-30 13:33 ` [Patch 4/8] soc: tegra: cbb: improve handling for per SoC fabric data Sumit Gupta
2025-05-30 13:33 ` [Patch 5/8] soc: tegra: cbb: support hw lookup to get timed out target address Sumit Gupta
2025-05-30 13:33 ` [Patch 6/8] dt-bindings: arm: tegra: Add NVIDIA Tegra264 CBB 2.0 binding Sumit Gupta
2025-06-03  7:09   ` Krzysztof Kozlowski
2025-05-30 13:33 ` [Patch 7/8] soc: tegra: cbb: add support for cbb fabrics in Tegra264 Sumit Gupta
2025-05-30 13:33 ` [Patch 8/8] soc: tegra: cbb: add support for cbb fabrics in GB10 Sumit Gupta

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