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[212.171.170.230]) by smtp.googlemail.com with ESMTPSA id 5b1f17b1804b1-4562e81ccb4sm106688005e9.17.2025.07.19.05.56.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 19 Jul 2025 05:56:32 -0700 (PDT) From: Christian Marangi To: Stefan Roese , Andi Shyti , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Matthias Brugger , AngeloGioacchino Del Regno , linux-i2c@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org Cc: Christian Marangi Subject: [PATCH 2/5] i2c: mt7621: clear pending interrupt on i2c reset Date: Sat, 19 Jul 2025 14:56:12 +0200 Message-ID: <20250719125617.8886-3-ansuelsmth@gmail.com> X-Mailer: git-send-email 2.50.0 In-Reply-To: <20250719125617.8886-1-ansuelsmth@gmail.com> References: <20250719125617.8886-1-ansuelsmth@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" On resetting the i2c bus, clear any pending interrupt to have a more consistent state on the next operation. Signed-off-by: Christian Marangi --- drivers/i2c/busses/i2c-mt7621.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/i2c/busses/i2c-mt7621.c b/drivers/i2c/busses/i2c-mt762= 1.c index c0e13f9af3e5..58c3da92cea3 100644 --- a/drivers/i2c/busses/i2c-mt7621.c +++ b/drivers/i2c/busses/i2c-mt7621.c @@ -101,6 +101,8 @@ static void mtk_i2c_reset(struct mtk_i2c *i2c) iowrite32(((i2c->clk_div << 16) & SM0CTL0_CLK_DIV_MASK) | SM0CTL0_EN | SM0CTL0_SCL_STRETCH, i2c->base + REG_SM0CTL0_REG); iowrite32(0, i2c->base + REG_SM0CFG2_REG); + /* Clear any pending interrupt */ + iowrite32(1, i2c->base + REG_PINTEN_REG); } =20 static void mtk_i2c_dump_reg(struct mtk_i2c *i2c) --=20 2.50.0