hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

i2c: mpc: Fix ISR return value 

ISR should not return IRQ_HANDLED for not handling anything.
This patch fixes the return value of ISR for the same case.

Signed-off-by: Amit Singh Tomar <amit.tomar@freescale.com>
Acked-by: Danielle Costantino <danielle.costantino@gmail.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
This commit is contained in:
Amit Tomar 2015-03-27 18:19:00 +05:30 committed by Wolfram Sang
parent 98e982b3a2
commit 9c836d0c44
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/i2c/busses/i2c-mpc.c
View File

@ -96,8 +96,9 @@ static irqreturn_t mpc_i2c_isr(int irq, void *dev_id)
i2c->interrupt = readb(i2c->base + MPC_I2C_SR); i2c->interrupt = readb(i2c->base + MPC_I2C_SR);
writeb(0, i2c->base + MPC_I2C_SR); writeb(0, i2c->base + MPC_I2C_SR);
wake_up(&i2c->queue); 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 /* Sometimes 9th clock pulse isn't generated, and slave doesn't release