In current scenario, ISR of i2c-mpc.c is returning IRQ_HANDLED for doing nothing which is not right .
With below patch ISR now return IRQ_NONE for doing nothing and IRQ_HANDLED for doing handler work. Signed-off-by: Amit Singh Tomar <amit.to...@freescale.com> --- drivers/i2c/busses/i2c-mpc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-mpc.c b/drivers/i2c/busses/i2c-mpc.c index 0edf630..7a3136f 100644 --- a/drivers/i2c/busses/i2c-mpc.c +++ b/drivers/i2c/busses/i2c-mpc.c @@ -95,8 +95,9 @@ static irqreturn_t mpc_i2c_isr(int irq, void *dev_id) i2c->interrupt = readb(i2c->base + MPC_I2C_SR); writeb(0, i2c->base + MPC_I2C_SR); wake_up(&i2c->queue); + return IRQ_HANDLED; } - return IRQ_HANDLED; + return IRQ_NONE; } /* Sometimes 9th clock pulse isn't generated, and slave doesn't release -- 1.7.9.5 _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
