diff mbox

[v4,5/9] clk: sunxi-ng: Implement minimum for multipliers

Message ID dc2601d4f35d9921ec50ed443cdd413f699fa270.1476196031.git-series.maxime.ripard@free-electrons.com (mailing list archive)
State Superseded, archived
Headers show

Commit Message

Maxime Ripard Oct. 11, 2016, 2:28 p.m. UTC
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(-)

Comments

Chen-Yu Tsai Oct. 20, 2016, 3:06 p.m. UTC | #1
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>
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Maxime Ripard Oct. 20, 2016, 5:30 p.m. UTC | #2
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
diff mbox

Patch

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;
 	_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;
 	_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;
 	_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;