Re: [PATCH] iio: adc: rockchip: Fix clock initialization sequence

[Jonathan Cameron]

On Wed, 12 Mar 2025 08:00:54 +0100
Heiko Stuebner <heiko@xxxxxxxxx> wrote:

> Am Mittwoch, 12. März 2025, 07:20:16 MEZ schrieb Simon Xue:
> > clock_set_rate should be executed after devm_clk_get_enabled.
> > 
> > Fixes: 97ad10bb2901 ("iio: adc: rockchip_saradc: Make use of devm_clk_get_enabled")
> > Signed-off-by: Simon Xue <xxm@xxxxxxxxxxxxxx>  
> 
> Reviewed-by: Heiko Stuebner <heiko@xxxxxxxxx>
ouch.

Applied and marked for stable.

Thanks,

Jonathan

> 
> > ---
> >  drivers/iio/adc/rockchip_saradc.c | 17 ++++++++---------
> >  1 file changed, 8 insertions(+), 9 deletions(-)
> > 
> > diff --git a/drivers/iio/adc/rockchip_saradc.c b/drivers/iio/adc/rockchip_saradc.c
> > index a29e54754c8f..ab4de67fb135 100644
> > --- a/drivers/iio/adc/rockchip_saradc.c
> > +++ b/drivers/iio/adc/rockchip_saradc.c
> > @@ -480,15 +480,6 @@ static int rockchip_saradc_probe(struct platform_device *pdev)
> >  	if (info->reset)
> >  		rockchip_saradc_reset_controller(info->reset);
> >  
> > -	/*
> > -	 * Use a default value for the converter clock.
> > -	 * This may become user-configurable in the future.
> > -	 */
> > -	ret = clk_set_rate(info->clk, info->data->clk_rate);
> > -	if (ret < 0)
> > -		return dev_err_probe(&pdev->dev, ret,
> > -				     "failed to set adc clk rate\n");
> > -
> >  	ret = regulator_enable(info->vref);
> >  	if (ret < 0)
> >  		return dev_err_probe(&pdev->dev, ret,
> > @@ -515,6 +506,14 @@ static int rockchip_saradc_probe(struct platform_device *pdev)
> >  	if (IS_ERR(info->clk))
> >  		return dev_err_probe(&pdev->dev, PTR_ERR(info->clk),
> >  				     "failed to get adc clock\n");
> > +	/*
> > +	 * Use a default value for the converter clock.
> > +	 * This may become user-configurable in the future.
> > +	 */
> > +	ret = clk_set_rate(info->clk, info->data->clk_rate);
> > +	if (ret < 0)
> > +		return dev_err_probe(&pdev->dev, ret,
> > +				     "failed to set adc clk rate\n");
> >  
> >  	platform_set_drvdata(pdev, indio_dev);
> >  
> >   
> 
> 
> 
>