linux-kernel - [PATCH 5.17 0294/1126] media: camss: csid-170: dont enable unused irqs

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Message-Id: <20220405070416.244455357@linuxfoundation.org>
Date:   Tue,  5 Apr 2022 09:17:21 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Jonathan Marek <jonathan@...ek.ca>,
        Robert Foss <robert.foss@...aro.org>,
        Julian Grahsl <jgrahsl@...p.com>,
        Bryan ODonoghue <bryan.odonoghue@...aro.org>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.17 0294/1126] media: camss: csid-170: dont enable unused irqs

From: Jonathan Marek <jonathan@...ek.ca>

[ Upstream commit a6da362491e409de0978d733441e59db6584d69f ]

csid_isr() only checks for the reset irq, so enabling any other irqs
doesn't make sense. The "RDI irq" comment is also wrong, the register
should be CSID_CSI2_RDIN_IRQ_MASK. Without this fix there may be an
excessive amount of irqs.

Fixes: eebe6d00e9bf ("media: camss: Add support for CSID hardware version Titan 170")
Signed-off-by: Jonathan Marek <jonathan@...ek.ca>
Reviewed-by: Robert Foss <robert.foss@...aro.org>
Tested-by: Julian Grahsl <jgrahsl@...p.com>
Tested-by: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@...all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/media/platform/qcom/camss/camss-csid-170.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/media/platform/qcom/camss/camss-csid-170.c b/drivers/media/platform/qcom/camss/camss-csid-170.c
index aa65043c3303..a006c8dbceb1 100644
--- a/drivers/media/platform/qcom/camss/camss-csid-170.c
+++ b/drivers/media/platform/qcom/camss/camss-csid-170.c
@@ -444,12 +444,6 @@ static void csid_configure_stream(struct csid_device *csid, u8 enable)
 	val |= 1 << CSI2_RX_CFG1_MISR_EN;
 	writel_relaxed(val, csid->base + CSID_CSI2_RX_CFG1); // csi2_vc_mode_shift_val ?
 
-	/* error irqs start at BIT(11) */
-	writel_relaxed(~0u, csid->base + CSID_CSI2_RX_IRQ_MASK);
-
-	/* RDI irq */
-	writel_relaxed(~0u, csid->base + CSID_TOP_IRQ_MASK);
-
 	val = 1 << RDI_CTRL_HALT_CMD;
 	writel_relaxed(val, csid->base + CSID_RDI_CTRL(0));
 }
-- 
2.34.1