From: Maxime Ripard <maxime.ripard@free-electrons.com>
To: Mike Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@codeaurora.org>, Chen-Yu Tsai <wens@csie.org>,
Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: dri-devel@lists.freedesktop.org,
Daniel Vetter <daniel.vetter@intel.com>,
David Airlie <airlied@linux.ie>,
Mark Rutland <mark.rutland@arm.com>,
Rob Herring <robh+dt@kernel.org>,
devicetree@vger.kernel.org, linux-clk@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-sunxi@googlegroups.com
Subject: [PATCH 2/15] clk: sunxi-ng: Pass the parent and a pointer to the clocks round rate
Date: Tue, 7 Mar 2017 09:56:21 +0100 [thread overview]
Message-ID: <263d27de0ef00f042443d10f6d92fb051ac80349.1488876832.git-series.maxime.ripard@free-electrons.com> (raw)
In-Reply-To: <cover.bc06ffa88f847ddd9ddd7c259415d5f61b55307b.1488876832.git-series.maxime.ripard@free-electrons.com>
In-Reply-To: <cover.bc06ffa88f847ddd9ddd7c259415d5f61b55307b.1488876832.git-series.maxime.ripard@free-electrons.com>
The clocks might need to modify their parent clocks. In order to make that
possible, give them access to the parent clock being evaluated, and to a
pointer to the parent rate so that they can modify it if needed.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
---
drivers/clk/sunxi-ng/ccu_div.c | 7 ++++---
drivers/clk/sunxi-ng/ccu_mp.c | 7 ++++---
drivers/clk/sunxi-ng/ccu_mult.c | 11 ++++++-----
drivers/clk/sunxi-ng/ccu_mux.c | 8 +++++---
drivers/clk/sunxi-ng/ccu_mux.h | 3 ++-
drivers/clk/sunxi-ng/ccu_nkm.c | 7 ++++---
6 files changed, 25 insertions(+), 18 deletions(-)
diff --git a/drivers/clk/sunxi-ng/ccu_div.c b/drivers/clk/sunxi-ng/ccu_div.c
index 92855c2b30bb..7f8b06e38636 100644
--- a/drivers/clk/sunxi-ng/ccu_div.c
+++ b/drivers/clk/sunxi-ng/ccu_div.c
@@ -14,7 +14,8 @@
#include "ccu_div.h"
static unsigned long ccu_div_round_rate(struct ccu_mux_internal *mux,
- unsigned long parent_rate,
+ struct clk_hw *parent,
+ unsigned long *parent_rate,
unsigned long rate,
void *data)
{
@@ -26,10 +27,10 @@ static unsigned long ccu_div_round_rate(struct ccu_mux_internal *mux,
* several parents, while we might be called to evaluate
* several different parents.
*/
- val = divider_get_val(rate, parent_rate, cd->div.table, cd->div.width,
+ val = divider_get_val(rate, *parent_rate, cd->div.table, cd->div.width,
cd->div.flags);
- return divider_recalc_rate(&cd->common.hw, parent_rate, val,
+ return divider_recalc_rate(&cd->common.hw, *parent_rate, val,
cd->div.table, cd->div.flags);
}
diff --git a/drivers/clk/sunxi-ng/ccu_mp.c b/drivers/clk/sunxi-ng/ccu_mp.c
index b583f186a804..de02e6c386d8 100644
--- a/drivers/clk/sunxi-ng/ccu_mp.c
+++ b/drivers/clk/sunxi-ng/ccu_mp.c
@@ -41,7 +41,8 @@ static void ccu_mp_find_best(unsigned long parent, unsigned long rate,
}
static unsigned long ccu_mp_round_rate(struct ccu_mux_internal *mux,
- unsigned long parent_rate,
+ struct clk_hw *hw,
+ unsigned long *parent_rate,
unsigned long rate,
void *data)
{
@@ -52,9 +53,9 @@ static unsigned long ccu_mp_round_rate(struct ccu_mux_internal *mux,
max_m = cmp->m.max ?: 1 << cmp->m.width;
max_p = cmp->p.max ?: 1 << ((1 << cmp->p.width) - 1);
- ccu_mp_find_best(parent_rate, rate, max_m, max_p, &m, &p);
+ ccu_mp_find_best(*parent_rate, rate, max_m, max_p, &m, &p);
- return parent_rate / p / m;
+ return *parent_rate / p / m;
}
static void ccu_mp_disable(struct clk_hw *hw)
diff --git a/drivers/clk/sunxi-ng/ccu_mult.c b/drivers/clk/sunxi-ng/ccu_mult.c
index 8724c01171b1..76d17162366f 100644
--- a/drivers/clk/sunxi-ng/ccu_mult.c
+++ b/drivers/clk/sunxi-ng/ccu_mult.c
@@ -33,9 +33,10 @@ static void ccu_mult_find_best(unsigned long parent, unsigned long rate,
}
static unsigned long ccu_mult_round_rate(struct ccu_mux_internal *mux,
- unsigned long parent_rate,
- unsigned long rate,
- void *data)
+ struct clk_hw *parent,
+ unsigned long *parent_rate,
+ unsigned long rate,
+ void *data)
{
struct ccu_mult *cm = data;
struct _ccu_mult _cm;
@@ -47,9 +48,9 @@ static unsigned long ccu_mult_round_rate(struct ccu_mux_internal *mux,
else
_cm.max = (1 << cm->mult.width) + cm->mult.offset - 1;
- ccu_mult_find_best(parent_rate, rate, &_cm);
+ ccu_mult_find_best(*parent_rate, rate, &_cm);
- return parent_rate * _cm.mult;
+ return *parent_rate * _cm.mult;
}
static void ccu_mult_disable(struct clk_hw *hw)
diff --git a/drivers/clk/sunxi-ng/ccu_mux.c b/drivers/clk/sunxi-ng/ccu_mux.c
index c6bb1f523232..bae735e252b6 100644
--- a/drivers/clk/sunxi-ng/ccu_mux.c
+++ b/drivers/clk/sunxi-ng/ccu_mux.c
@@ -61,7 +61,8 @@ int ccu_mux_helper_determine_rate(struct ccu_common *common,
struct ccu_mux_internal *cm,
struct clk_rate_request *req,
unsigned long (*round)(struct ccu_mux_internal *,
- unsigned long,
+ struct clk_hw *,
+ unsigned long *,
unsigned long,
void *),
void *data)
@@ -80,7 +81,8 @@ int ccu_mux_helper_determine_rate(struct ccu_common *common,
ccu_mux_helper_adjust_parent_for_prediv(common, cm, -1,
&adj_parent_rate);
- best_rate = round(cm, adj_parent_rate, req->rate, data);
+ best_rate = round(cm, best_parent, &adj_parent_rate,
+ req->rate, data);
goto out;
}
@@ -109,7 +111,7 @@ int ccu_mux_helper_determine_rate(struct ccu_common *common,
ccu_mux_helper_adjust_parent_for_prediv(common, cm, i,
&adj_parent_rate);
- tmp_rate = round(cm, adj_parent_rate, req->rate, data);
+ tmp_rate = round(cm, parent, &adj_parent_rate, req->rate, data);
if (tmp_rate == req->rate) {
best_parent = parent;
best_parent_rate = parent_rate;
diff --git a/drivers/clk/sunxi-ng/ccu_mux.h b/drivers/clk/sunxi-ng/ccu_mux.h
index 47aba3a48245..4be56eee2bfd 100644
--- a/drivers/clk/sunxi-ng/ccu_mux.h
+++ b/drivers/clk/sunxi-ng/ccu_mux.h
@@ -86,7 +86,8 @@ int ccu_mux_helper_determine_rate(struct ccu_common *common,
struct ccu_mux_internal *cm,
struct clk_rate_request *req,
unsigned long (*round)(struct ccu_mux_internal *,
- unsigned long,
+ struct clk_hw *,
+ unsigned long *,
unsigned long,
void *),
void *data);
diff --git a/drivers/clk/sunxi-ng/ccu_nkm.c b/drivers/clk/sunxi-ng/ccu_nkm.c
index 71f81e95a061..c5e010eb5991 100644
--- a/drivers/clk/sunxi-ng/ccu_nkm.c
+++ b/drivers/clk/sunxi-ng/ccu_nkm.c
@@ -102,7 +102,8 @@ static unsigned long ccu_nkm_recalc_rate(struct clk_hw *hw,
}
static unsigned long ccu_nkm_round_rate(struct ccu_mux_internal *mux,
- unsigned long parent_rate,
+ struct clk_hw *hw,
+ unsigned long *parent_rate,
unsigned long rate,
void *data)
{
@@ -116,9 +117,9 @@ static unsigned long ccu_nkm_round_rate(struct ccu_mux_internal *mux,
_nkm.min_m = 1;
_nkm.max_m = nkm->m.max ?: 1 << nkm->m.width;
- ccu_nkm_find_best(parent_rate, rate, &_nkm);
+ ccu_nkm_find_best(*parent_rate, rate, &_nkm);
- return parent_rate * _nkm.n * _nkm.k / _nkm.m;
+ return *parent_rate * _nkm.n * _nkm.k / _nkm.m;
}
static int ccu_nkm_determine_rate(struct clk_hw *hw,
--
git-series 0.8.11
next prev parent reply other threads:[~2017-03-07 9:30 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-07 8:56 [PATCH 0/15] drm: sun4i: Add support for the HDMI controller Maxime Ripard
2017-03-07 8:56 ` [PATCH 1/15] clk: divider: Make divider_round_rate take the parent clock Maxime Ripard
2017-03-07 14:11 ` Stephen Boyd
2017-03-09 10:55 ` Maxime Ripard
2017-03-07 8:56 ` Maxime Ripard [this message]
2017-03-07 8:56 ` [PATCH 3/15] clk: sunxi-ng: div: Switch to divider_round_rate Maxime Ripard
2017-03-07 8:56 ` [PATCH 4/15] clk: sunxi-ng: mux: Don't just rely on the parent for CLK_SET_RATE_PARENT Maxime Ripard
2017-03-07 8:56 ` [PATCH 5/15] clk: sunxi-ng: sun5i: Export video PLLs Maxime Ripard
2017-03-07 10:21 ` [linux-sunxi] " Julian Calaby
2017-03-08 8:58 ` Maxime Ripard
2017-03-07 8:56 ` [PATCH 6/15] dt-bindings: display: sun4i: Add HDMI display bindings Maxime Ripard
2017-03-08 3:39 ` Chen-Yu Tsai
2017-03-15 17:26 ` Rob Herring
2017-04-03 20:59 ` Maxime Ripard
2017-05-03 3:27 ` Chen-Yu Tsai
2017-03-07 8:56 ` [PATCH 7/15] dt-bindings: display: sun4i: Add allwinner,tcon-channel property Maxime Ripard
2017-03-08 3:38 ` Chen-Yu Tsai
2017-03-15 17:37 ` Rob Herring
2017-03-17 3:34 ` Chen-Yu Tsai
2017-03-26 21:11 ` Maxime Ripard
2017-03-07 8:56 ` [PATCH 8/15] drm/sun4i: tcon: Add channel debug Maxime Ripard
2017-03-08 3:37 ` Chen-Yu Tsai
2017-03-07 8:56 ` [PATCH 9/15] drm/sun4i: tcon: Pass the encoder to the mode set functions Maxime Ripard
2017-03-07 8:56 ` [PATCH 10/15] drm/sun4i: tcon: Switch mux on only for composite Maxime Ripard
2017-03-08 3:51 ` Chen-Yu Tsai
2017-03-08 4:16 ` Stefan Monnier
2017-03-09 10:58 ` Maxime Ripard
2017-03-09 11:31 ` [linux-sunxi] " Chen-Yu Tsai
2017-03-09 14:55 ` Maxime Ripard
2017-03-07 8:56 ` [PATCH 11/15] drm/sun4i: tcon: Fix tcon channel 1 backporch calculation Maxime Ripard
2017-03-08 4:25 ` Chen-Yu Tsai
2017-03-08 8:55 ` Maxime Ripard
2017-03-07 8:56 ` [PATCH 12/15] drm/sun4i: tcon: multiply the vtotal when not in interlace Maxime Ripard
2017-03-07 10:05 ` Chen-Yu Tsai
2017-03-09 10:54 ` Maxime Ripard
2017-03-07 8:56 ` [PATCH 13/15] drm/sun4i: Add HDMI support Maxime Ripard
2017-04-21 15:17 ` [linux-sunxi] " Chen-Yu Tsai
2017-04-26 6:50 ` Maxime Ripard
2017-04-26 7:59 ` Chen-Yu Tsai
2017-05-03 8:41 ` Maxime Ripard
2017-03-07 8:56 ` [PATCH 14/15] ARM: sun5i: a10s: Add the HDMI controller node Maxime Ripard
2017-03-08 3:35 ` [linux-sunxi] " Chen-Yu Tsai
2017-03-09 10:59 ` Maxime Ripard
2017-03-09 11:10 ` Chen-Yu Tsai
2017-03-07 8:56 ` [PATCH 15/15] ARM: sun5i: a10s-olinuxino: Enable HDMI Maxime Ripard
2017-03-08 3:36 ` Chen-Yu Tsai
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