On 30/03/15 15:03, Ioan Nicu wrote:
> Probe deferral is not an error case. It happens only when
> the necessary dependencies are not there yet.
>
> The driver core is already printing a message when a driver
> requests probe deferral, so this can be traced in the logs
> without these error prints.
>
> This patch removes the error messages for these deferral cases.
>
> Signed-off-by: Ionut Nicu <ioan.nicu.ext@xxxxxxxxx>
Acked-by: Alexander Sverdlin <alexander.sverdlin@xxxxxxxxx>
> ---
> drivers/i2c/muxes/i2c-mux-gpio.c | 10 +++-------
> 1 files changed, 3 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/i2c/muxes/i2c-mux-gpio.c b/drivers/i2c/muxes/i2c-mux-gpio.c
> index f5798eb..70db992 100644
> --- a/drivers/i2c/muxes/i2c-mux-gpio.c
> +++ b/drivers/i2c/muxes/i2c-mux-gpio.c
> @@ -76,10 +76,9 @@ static int i2c_mux_gpio_probe_dt(struct gpiomux *mux,
> return -ENODEV;
> }
> adapter = of_find_i2c_adapter_by_node(adapter_np);
> - if (!adapter) {
> - dev_err(&pdev->dev, "Cannot find parent bus\n");
> + if (!adapter)
> return -EPROBE_DEFER;
> - }
> +
> mux->data.parent = i2c_adapter_id(adapter);
> put_device(&adapter->dev);
>
> @@ -177,11 +176,8 @@ static int i2c_mux_gpio_probe(struct platform_device *pdev)
> }
>
> parent = i2c_get_adapter(mux->data.parent);
> - if (!parent) {
> - dev_err(&pdev->dev, "Parent adapter (%d) not found\n",
> - mux->data.parent);
> + if (!parent)
> return -EPROBE_DEFER;
> - }
>
> mux->parent = parent;
> mux->gpio_base = gpio_base;
>
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