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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-07-27 09:22:08 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-07-27 09:22:08 +0200
commitbdac4d8abbfc239886103f7c6ee03abb8011a008 (patch)
treefda39ff9008b28d574ccd647f41a243183663127 /drivers/i2c
parente7deeb9d79d8691f1e6c4c6707471ec3d7b9886b (diff)
parentff1176468d368232b684f75e82563369208bc371 (diff)
downloadlinux-bdac4d8abbfc239886103f7c6ee03abb8011a008.tar.bz2
Merge 5.14-rc3 into driver-core-next
We need the driver-core fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/i2c')
-rw-r--r--drivers/i2c/busses/i2c-mpc.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/i2c/busses/i2c-mpc.c b/drivers/i2c/busses/i2c-mpc.c
index 6d5014ebaab5..a6ea1eb1394e 100644
--- a/drivers/i2c/busses/i2c-mpc.c
+++ b/drivers/i2c/busses/i2c-mpc.c
@@ -635,8 +635,8 @@ static irqreturn_t mpc_i2c_isr(int irq, void *dev_id)
status = readb(i2c->base + MPC_I2C_SR);
if (status & CSR_MIF) {
- /* Read again to allow register to stabilise */
- status = readb(i2c->base + MPC_I2C_SR);
+ /* Wait up to 100us for transfer to properly complete */
+ readb_poll_timeout(i2c->base + MPC_I2C_SR, status, !(status & CSR_MCF), 0, 100);
writeb(0, i2c->base + MPC_I2C_SR);
mpc_i2c_do_intr(i2c, status);
return IRQ_HANDLED;