Re: [PATCH] gpio: ml_ioh_gpio: Fix output value ofioh_gpio_direction_output()

From: Grant Likely
Date: Thu Mar 31 2011 - 17:18:20 EST


On Thu, Mar 24, 2011 at 06:17:14PM -0500, Peter Tyser wrote:
> The ioh_gpio_direction_output() function was missing a write to set the
> desired output value. The function would properly set the GPIO
> direction, but not the output value. The value would have to manually
> be set with a follow up call to ioh_gpio_set().
>
> Add the missing write so that ioh_gpio_direction_output() sets both the
> GPIO direction and value.
>
> Signed-off-by: Peter Tyser <ptyser@xxxxxxxxxxx>
> Cc: tomoya-linux@xxxxxxxxxxxxxxx
> Cc: Grant Likely <grant.likely@xxxxxxxxxxxx>
> ---
> This is untested - just noticed it while working on an unrelated change. An
> ack or tested-by from someone with real hardware would be appreciated.

Applied, thanks.

g.

>
> drivers/gpio/ml_ioh_gpio.c | 1 +
> 1 files changed, 1 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/gpio/ml_ioh_gpio.c b/drivers/gpio/ml_ioh_gpio.c
> index cead8e6..7a0423c 100644
> --- a/drivers/gpio/ml_ioh_gpio.c
> +++ b/drivers/gpio/ml_ioh_gpio.c
> @@ -116,6 +116,7 @@ static int ioh_gpio_direction_output(struct gpio_chip *gpio, unsigned nr,
> reg_val |= (1 << nr);
> else
> reg_val &= ~(1 << nr);
> + iowrite32(reg_val, &chip->reg->regs[chip->ch].po);
>
> mutex_unlock(&chip->lock);
>
> --
> 1.7.0.4
>
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