From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eddie James Date: Thu, 20 Aug 2020 11:11:50 -0500 Subject: [PATCH 3/5] i2c: aspeed: Mask IRQ status to relevant bits In-Reply-To: <20200820161152.22751-1-eajames@linux.ibm.com> References: <20200820161152.22751-1-eajames@linux.ibm.com> Message-ID: <20200820161152.22751-4-eajames@linux.ibm.com> List-Id: To: linux-aspeed@lists.ozlabs.org MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Mask the IRQ status to only the bits that the driver checks. This prevents excessive driver warnings when operating in slave mode when additional bits are set that the driver doesn't handle. Signed-off-by: Eddie James --- drivers/i2c/busses/i2c-aspeed.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/i2c/busses/i2c-aspeed.c b/drivers/i2c/busses/i2c-aspeed.c index 31268074c422..abf40f2af8b4 100644 --- a/drivers/i2c/busses/i2c-aspeed.c +++ b/drivers/i2c/busses/i2c-aspeed.c @@ -604,6 +604,7 @@ static irqreturn_t aspeed_i2c_bus_irq(int irq, void *dev_id) writel(irq_received & ~ASPEED_I2CD_INTR_RX_DONE, bus->base + ASPEED_I2C_INTR_STS_REG); readl(bus->base + ASPEED_I2C_INTR_STS_REG); + irq_received &= 0xf000ffff; irq_remaining = irq_received; #if IS_ENABLED(CONFIG_I2C_SLAVE) -- 2.26.2