Commit 1a1d6db2 authored by Eddie James's avatar Eddie James Committed by Wolfram Sang
Browse files

i2c: aspeed: Mask IRQ status to relevant bits 



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: default avatarEddie James <eajames@linux.ibm.com>
Reviewed-by: default avatarTao Ren <rentao.bupt@gmail.com>
Signed-off-by: default avatarWolfram Sang <wsa@kernel.org>
parent 856deb86

drivers/i2c/busses/i2c-aspeed.c

+2 −0
Original line number Diff line number Diff line
@@ -69,6 +69,7 @@ 
 * These share bit definitions, so use the same values for the enable &

 * status bits.

 */

#define ASPEED_I2CD_INTR_RECV_MASK			0xf000ffff

#define ASPEED_I2CD_INTR_SDA_DL_TIMEOUT			BIT(14)

#define ASPEED_I2CD_INTR_BUS_RECOVER_DONE		BIT(13)

#define ASPEED_I2CD_INTR_SLAVE_MATCH			BIT(7)
@@ -604,6 +605,7 @@ 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 &= ASPEED_I2CD_INTR_RECV_MASK;

	irq_remaining = irq_received;



#if IS_ENABLED(CONFIG_I2C_SLAVE)

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