Re: [PATCH 4/5] clk: sunxi: Use CLK_IS_CRITICAL flag for critical clks

From: Stephen Boyd
Date: Wed Jan 03 2018 - 12:01:39 EST


On 01/03, Chen-Yu Tsai wrote:
> On Wed, Jan 3, 2018 at 9:35 AM, Stephen Boyd <sboyd@xxxxxxxxxxxxxx> wrote:
> > We'd like to privatize __clk_get(), but the sunxi clk driver is
> > calling this function to keep a reference held on the clk and
> > call clk_prepare_enable() on it. We support this design in the
> > clk core now with the CLK_IS_CRITICAL flag, so let's just use
> > that instead.
> >
> > Cc: Maxime Ripard <maxime.ripard@xxxxxxxxxxxxxxxxxx>
> > Cc: Chen-Yu Tsai <wens@xxxxxxxx>
> > Signed-off-by: Stephen Boyd <sboyd@xxxxxxxxxxxxxx>
> > ---
> > drivers/clk/sunxi/clk-factors.c | 26 +++++++++++++++++++++-----
> > drivers/clk/sunxi/clk-factors.h | 4 ++++
> > drivers/clk/sunxi/clk-mod0.c | 9 ++-------
> > drivers/clk/sunxi/clk-sun8i-mbus.c | 7 ++-----
> > drivers/clk/sunxi/clk-sun9i-core.c | 9 ++-------
> > drivers/clk/sunxi/clk-sunxi.c | 36 +++++++++++++-----------------------
> > 6 files changed, 44 insertions(+), 47 deletions(-)
> >
> > diff --git a/drivers/clk/sunxi/clk-factors.c b/drivers/clk/sunxi/clk-factors.c
> > index 856fef65433b..f6f4757d2dd1 100644
> > --- a/drivers/clk/sunxi/clk-factors.c
> > +++ b/drivers/clk/sunxi/clk-factors.c
> > @@ -176,10 +176,10 @@ static const struct clk_ops clk_factors_ops = {
> > .set_rate = clk_factors_set_rate,
> > };
> >
> > -struct clk *sunxi_factors_register(struct device_node *node,
> > - const struct factors_data *data,
> > - spinlock_t *lock,
> > - void __iomem *reg)
> > +struct clk *__sunxi_factors_register(struct device_node *node,
>
> This looks like it's only used within the file by the two wrapper
> functions. Mark it static?

Ah thanks. I hadn't run sparse yet.

>
> Otherwise
>
> Reviewed-by: Chen-Yu Tsai <wens@xxxxxxxx>
>
> Looks like you picked the easiest (least code changes) for each type
> of clock?

Yep.

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