diff options
| author | Ingo Molnar <mingo@kernel.org> | 2016-11-24 07:09:08 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-11-24 07:09:08 +0300 |
| commit | 69e6cdd0cf16f645be39038e5ccc9379e3923d00 (patch) | |
| tree | 3edb32b07ef37be1536f6510ec8e7caaf5acbbb8 /drivers/tty/serial/sc16is7xx.c | |
| parent | 6a6b12e2125591e24891e6860410795ea53aed11 (diff) | |
| parent | 10b9dd56860e93f11cd352e8c75a33357b80b70b (diff) | |
| download | linux-69e6cdd0cf16f645be39038e5ccc9379e3923d00.tar.xz | |
Merge branch 'linus' into perf/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/tty/serial/sc16is7xx.c')
| -rw-r--r-- | drivers/tty/serial/sc16is7xx.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c index 2675792a8f59..fb0672554123 100644 --- a/drivers/tty/serial/sc16is7xx.c +++ b/drivers/tty/serial/sc16is7xx.c @@ -1130,9 +1130,13 @@ static int sc16is7xx_gpio_direction_output(struct gpio_chip *chip, { struct sc16is7xx_port *s = gpiochip_get_data(chip); struct uart_port *port = &s->p[0].port; + u8 state = sc16is7xx_port_read(port, SC16IS7XX_IOSTATE_REG); - sc16is7xx_port_update(port, SC16IS7XX_IOSTATE_REG, BIT(offset), - val ? BIT(offset) : 0); + if (val) + state |= BIT(offset); + else + state &= ~BIT(offset); + sc16is7xx_port_write(port, SC16IS7XX_IOSTATE_REG, state); sc16is7xx_port_update(port, SC16IS7XX_IODIR_REG, BIT(offset), BIT(offset)); |