Messages in this thread | | | Date | Thu, 20 Oct 2016 19:30:53 +0200 | From | Maxime Ripard <> | Subject | Re: [PATCH v4 5/9] clk: sunxi-ng: Implement minimum for multipliers |
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On Thu, Oct 20, 2016 at 11:06:21PM +0800, Chen-Yu Tsai wrote: > On Tue, Oct 11, 2016 at 10:28 PM, Maxime Ripard > <maxime.ripard@free-electrons.com> wrote: > > Allow the CCU drivers to specify a multiplier for their clocks. > > > > Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> > > --- > > drivers/clk/sunxi-ng/ccu_mult.c | 2 +- > > drivers/clk/sunxi-ng/ccu_mult.h | 13 +++++++++---- > > drivers/clk/sunxi-ng/ccu_nk.c | 8 ++++---- > > drivers/clk/sunxi-ng/ccu_nkm.c | 8 ++++---- > > drivers/clk/sunxi-ng/ccu_nkmp.c | 4 ++-- > > drivers/clk/sunxi-ng/ccu_nm.c | 2 +- > > 6 files changed, 21 insertions(+), 16 deletions(-) > > > > diff --git a/drivers/clk/sunxi-ng/ccu_mult.c b/drivers/clk/sunxi-ng/ccu_mult.c > > index 6a02ffee5386..678b6cb49f01 100644 > > --- a/drivers/clk/sunxi-ng/ccu_mult.c > > +++ b/drivers/clk/sunxi-ng/ccu_mult.c > > @@ -105,7 +105,7 @@ static int ccu_mult_set_rate(struct clk_hw *hw, unsigned long rate, > > ccu_mux_helper_adjust_parent_for_prediv(&cm->common, &cm->mux, -1, > > &parent_rate); > > > > - _cm.min = 1; > > + _cm.min = cm->mult.min; > > _cm.max = 1 << cm->mult.width; > > ccu_mult_find_best(parent_rate, rate, &_cm); > > > > diff --git a/drivers/clk/sunxi-ng/ccu_mult.h b/drivers/clk/sunxi-ng/ccu_mult.h > > index 113780b7558e..c1a2134bdc71 100644 > > --- a/drivers/clk/sunxi-ng/ccu_mult.h > > +++ b/drivers/clk/sunxi-ng/ccu_mult.h > > @@ -7,14 +7,19 @@ > > struct ccu_mult_internal { > > u8 shift; > > u8 width; > > + u8 min; > > }; > > > > -#define _SUNXI_CCU_MULT(_shift, _width) \ > > - { \ > > - .shift = _shift, \ > > - .width = _width, \ > > +#define _SUNXI_CCU_MULT_MIN(_shift, _width, _min) \ > > + { \ > > + .shift = _shift, \ > > + .width = _width, \ > > + .min = _min, \ > > } > > > > +#define _SUNXI_CCU_MULT(_shift, _width) \ > > + _SUNXI_CCU_MULT_MIN(_shift, _width, 1) > > + > > struct ccu_mult { > > u32 enable; > > > > diff --git a/drivers/clk/sunxi-ng/ccu_nk.c b/drivers/clk/sunxi-ng/ccu_nk.c > > index a42d870ba0ef..eaf0fdf78d2b 100644 > > --- a/drivers/clk/sunxi-ng/ccu_nk.c > > +++ b/drivers/clk/sunxi-ng/ccu_nk.c > > @@ -97,9 +97,9 @@ static long ccu_nk_round_rate(struct clk_hw *hw, unsigned long rate, > > if (nk->common.features & CCU_FEATURE_FIXED_POSTDIV) > > rate *= nk->fixed_post_div; > > > > - _nk.min_n = 1; > > + _nk.min_n = nk->n.min; > > _nk.max_n = 1 << nk->n.width; > > - _nk.min_k = 1; > > + _nk.min_k = nk->k.min; > > _nk.max_k = 1 << nk->k.width; > > > > ccu_nk_find_best(*parent_rate, rate, &_nk); > > @@ -122,9 +122,9 @@ static int ccu_nk_set_rate(struct clk_hw *hw, unsigned long rate, > > if (nk->common.features & CCU_FEATURE_FIXED_POSTDIV) > > rate = rate * nk->fixed_post_div; > > > > - _nk.min_n = 1; > > + _nk.min_n = nk->n.min; > > _nk.max_n = 1 << nk->n.width; > > - _nk.min_k = 1; > > + _nk.min_k = nk->k.min; > > _nk.max_k = 1 << nk->k.width; > > > > ccu_nk_find_best(parent_rate, rate, &_nk); > > diff --git a/drivers/clk/sunxi-ng/ccu_nkm.c b/drivers/clk/sunxi-ng/ccu_nkm.c > > index b2a5fccf2f8c..715b49211ddb 100644 > > --- a/drivers/clk/sunxi-ng/ccu_nkm.c > > +++ b/drivers/clk/sunxi-ng/ccu_nkm.c > > @@ -100,9 +100,9 @@ static unsigned long ccu_nkm_round_rate(struct ccu_mux_internal *mux, > > struct ccu_nkm *nkm = data; > > struct _ccu_nkm _nkm; > > > > - _nkm.min_n = 1; > > + _nkm.min_n = nkm->n.min; > > _nkm.max_n = 1 << nkm->n.width; > > - _nkm.min_k = 1; > > + _nkm.min_n = nkm->k.min; > > Typo here. > > > _nkm.max_k = 1 << nkm->k.width; > > _nkm.min_m = 1; > > _nkm.max_m = nkm->m.max ?: 1 << nkm->m.width; > > @@ -129,9 +129,9 @@ static int ccu_nkm_set_rate(struct clk_hw *hw, unsigned long rate, > > unsigned long flags; > > u32 reg; > > > > - _nkm.min_n = 1; > > + _nkm.min_n = nkm->n.min; > > _nkm.max_n = 1 << nkm->n.width; > > - _nkm.min_k = 1; > > + _nkm.min_n = nkm->k.min; > > And here. > > > _nkm.max_k = 1 << nkm->k.width; > > _nkm.min_m = 1; > > _nkm.max_m = nkm->m.max ?: 1 << nkm->m.width; > > diff --git a/drivers/clk/sunxi-ng/ccu_nkmp.c b/drivers/clk/sunxi-ng/ccu_nkmp.c > > index 2c1398192e48..7968e0bac5db 100644 > > --- a/drivers/clk/sunxi-ng/ccu_nkmp.c > > +++ b/drivers/clk/sunxi-ng/ccu_nkmp.c > > @@ -107,9 +107,9 @@ static long ccu_nkmp_round_rate(struct clk_hw *hw, unsigned long rate, > > struct ccu_nkmp *nkmp = hw_to_ccu_nkmp(hw); > > struct _ccu_nkmp _nkmp; > > > > - _nkmp.min_n = 1; > > + _nkmp.min_n = nkmp->n.min; > > _nkmp.max_n = 1 << nkmp->n.width; > > - _nkmp.min_k = 1; > > + _nkmp.min_n = nkmp->k.min; > > And here. > > > _nkmp.max_k = 1 << nkmp->k.width; > > _nkmp.min_m = 1; > > _nkmp.max_m = nkmp->m.max ?: 1 << nkmp->m.width; > > diff --git a/drivers/clk/sunxi-ng/ccu_nm.c b/drivers/clk/sunxi-ng/ccu_nm.c > > index 2a190bc032a9..b1f3f0e8899d 100644 > > --- a/drivers/clk/sunxi-ng/ccu_nm.c > > +++ b/drivers/clk/sunxi-ng/ccu_nm.c > > @@ -93,7 +93,7 @@ static long ccu_nm_round_rate(struct clk_hw *hw, unsigned long rate, > > struct ccu_nm *nm = hw_to_ccu_nm(hw); > > struct _ccu_nm _nm; > > > > - _nm.min_n = 1; > > + _nm.min_n = nm->n.min; > > _nm.max_n = 1 << nm->n.width; > > _nm.min_m = 1; > > _nm.max_m = nm->m.max ?: 1 << nm->m.width; > > -- > > git-series 0.8.10 > > Otherwise, > > Acked-by: Chen-Yu Tsai <wens@csie.org>
Fixed and applied, thanks! Maxime
-- Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com [unhandled content-type:application/pgp-signature] | |