On Tue, 2015-01-20 at 14:57 +0200, Heikki Krogerus wrote: > When requesting clock in the platform driver, leaving > chip->clk value as NULL if -ENOENT is returned, and > continue. With other errors returning failure. It makes the > driver usable on platforms that do not provide the clock. > > Signed-off-by: Heikki Krogerus <[email protected]>
Acked-by: Andy Shevchenko <[email protected]> > --- > drivers/dma/dw/platform.c | 8 ++++++-- > 1 file changed, 6 insertions(+), 2 deletions(-) > > diff --git a/drivers/dma/dw/platform.c b/drivers/dma/dw/platform.c > index 32ea1ac..b183bc0 100644 > --- a/drivers/dma/dw/platform.c > +++ b/drivers/dma/dw/platform.c > @@ -180,8 +180,12 @@ static int dw_probe(struct platform_device *pdev) > chip->dev = dev; > > chip->clk = devm_clk_get(chip->dev, "hclk"); > - if (IS_ERR(chip->clk)) > - return PTR_ERR(chip->clk); > + if (IS_ERR(chip->clk)) { > + if (PTR_ERR(chip->clk) == -ENOENT) > + chip->clk = NULL; > + else > + return PTR_ERR(chip->clk); > + } > err = clk_prepare_enable(chip->clk); > if (err) > return err; -- Andy Shevchenko <[email protected]> Intel Finland Oy -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
