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Date: Sat, 5 Aug 2023 15:06:43 +0800
From: Zhifeng Tang <zhifeng.tang@...soc.com>
To: Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...nel.org>,
Orson Zhai <orsonzhai@...il.com>,
Baolin Wang <baolin.wang@...ux.alibaba.com>,
Chunyan Zhang <zhang.lyra@...il.com>,
Zhifeng Tang <zhifeng.tang@...soc.com>,
Cixi Geng <cixi.geng1@...soc.com>,
Maxime Ripard <mripard@...nel.org>
CC: <linux-clk@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
Zhifeng Tang <zhifeng.tang23@...il.com>,
Wenming Wu <wenming.wu@...soc.com>
Subject: [PATCH] clk: sprd: Composite driver support offset config
The composite interface support the offset configuration,
which is userd to support mux and div in different registers.
Signed-off-by: Zhifeng Tang <zhifeng.tang@...soc.com>
---
drivers/clk/sprd/composite.h | 38 +++++++++++++++++++++++++-----------
drivers/clk/sprd/div.c | 6 +++---
drivers/clk/sprd/div.h | 17 +++++++++++-----
3 files changed, 42 insertions(+), 19 deletions(-)
diff --git a/drivers/clk/sprd/composite.h b/drivers/clk/sprd/composite.h
index adbabbe596b7..74765584021d 100644
--- a/drivers/clk/sprd/composite.h
+++ b/drivers/clk/sprd/composite.h
@@ -19,24 +19,24 @@ struct sprd_comp {
};
#define SPRD_COMP_CLK_HW_INIT_FN(_struct, _name, _parent, _reg, _table, \
- _mshift, _mwidth, _dshift, _dwidth, \
- _flags, _fn) \
+ _mshift, _mwidth, _doffset, _dshift, \
+ _dwidth, _flags, _fn) \
struct sprd_comp _struct = { \
.mux = _SPRD_MUX_CLK(_mshift, _mwidth, _table), \
- .div = _SPRD_DIV_CLK(_dshift, _dwidth), \
+ .div = _SPRD_DIV_CLK(_doffset, _dshift, _dwidth), \
.common = { \
.regmap = NULL, \
.reg = _reg, \
.hw.init = _fn(_name, _parent, \
&sprd_comp_ops, _flags), \
- } \
+ } \
}
#define SPRD_COMP_CLK_TABLE(_struct, _name, _parent, _reg, _table, \
_mshift, _mwidth, _dshift, _dwidth, _flags) \
SPRD_COMP_CLK_HW_INIT_FN(_struct, _name, _parent, _reg, _table, \
- _mshift, _mwidth, _dshift, _dwidth, \
- _flags, CLK_HW_INIT_PARENTS)
+ _mshift, _mwidth, 0x0, _dshift, \
+ _dwidth, _flags, CLK_HW_INIT_PARENTS)
#define SPRD_COMP_CLK(_struct, _name, _parent, _reg, _mshift, \
_mwidth, _dshift, _dwidth, _flags) \
@@ -47,14 +47,30 @@ struct sprd_comp {
_mshift, _mwidth, _dshift, \
_dwidth, _flags) \
SPRD_COMP_CLK_HW_INIT_FN(_struct, _name, _parent, _reg, _table, \
- _mshift, _mwidth, _dshift, _dwidth, \
- _flags, CLK_HW_INIT_PARENTS_DATA)
+ _mshift, _mwidth, 0x0, _dshift, \
+ _dwidth, _flags, \
+ CLK_HW_INIT_PARENTS_DATA)
#define SPRD_COMP_CLK_DATA(_struct, _name, _parent, _reg, _mshift, \
_mwidth, _dshift, _dwidth, _flags) \
- SPRD_COMP_CLK_DATA_TABLE(_struct, _name, _parent, _reg, NULL, \
- _mshift, _mwidth, _dshift, _dwidth, \
- _flags)
+ SPRD_COMP_CLK_DATA_TABLE(_struct, _name, _parent, _reg, NULL, \
+ _mshift, _mwidth, _dshift, \
+ _dwidth, _flags)
+
+#define SPRD_COMP_CLK_DATA_TABLE_OFFSET(_struct, _name, _parent, _reg, \
+ _table, _mshift, _mwidth, \
+ _dshift, _dwidth, _flags) \
+ SPRD_COMP_CLK_HW_INIT_FN(_struct, _name, _parent, _reg, _table, \
+ _mshift, _mwidth, 0x4, _dshift, \
+ _dwidth, _flags, \
+ CLK_HW_INIT_PARENTS_DATA)
+
+#define SPRD_COMP_CLK_DATA_OFFSET(_struct, _name, _parent, _reg, \
+ _mshift, _mwidth, _dshift, \
+ _dwidth, _flags) \
+ SPRD_COMP_CLK_DATA_TABLE_OFFSET(_struct, _name, _parent, _reg, \
+ NULL, _mshift, _mwidth, \
+ _dshift, _dwidth, _flags)
static inline struct sprd_comp *hw_to_sprd_comp(const struct clk_hw *hw)
{
diff --git a/drivers/clk/sprd/div.c b/drivers/clk/sprd/div.c
index c7261630cab4..0fb41d653f1e 100644
--- a/drivers/clk/sprd/div.c
+++ b/drivers/clk/sprd/div.c
@@ -25,7 +25,7 @@ unsigned long sprd_div_helper_recalc_rate(struct sprd_clk_common *common,
unsigned long val;
unsigned int reg;
- regmap_read(common->regmap, common->reg, ®);
+ regmap_read(common->regmap, common->reg - div->offset, ®);
val = reg >> div->shift;
val &= (1 << div->width) - 1;
@@ -53,10 +53,10 @@ int sprd_div_helper_set_rate(const struct sprd_clk_common *common,
val = divider_get_val(rate, parent_rate, NULL,
div->width, 0);
- regmap_read(common->regmap, common->reg, ®);
+ regmap_read(common->regmap, common->reg - div->offset, ®);
reg &= ~GENMASK(div->width + div->shift - 1, div->shift);
- regmap_write(common->regmap, common->reg,
+ regmap_write(common->regmap, common->reg - div->offset,
reg | (val << div->shift));
return 0;
diff --git a/drivers/clk/sprd/div.h b/drivers/clk/sprd/div.h
index f5d614b3dcf1..db6b62ee6a8d 100644
--- a/drivers/clk/sprd/div.h
+++ b/drivers/clk/sprd/div.h
@@ -20,12 +20,14 @@
* classes.
*/
struct sprd_div_internal {
+ u32 offset;
u8 shift;
u8 width;
};
-#define _SPRD_DIV_CLK(_shift, _width) \
+#define _SPRD_DIV_CLK(_offset, _shift, _width) \
{ \
+ .offset = _offset, \
.shift = _shift, \
.width = _width, \
}
@@ -35,10 +37,10 @@ struct sprd_div {
struct sprd_clk_common common;
};
-#define SPRD_DIV_CLK_HW_INIT_FN(_struct, _name, _parent, _reg, \
+#define SPRD_DIV_CLK_HW_INIT_FN(_struct, _name, _parent, _reg, _offset, \
_shift, _width, _flags, _fn) \
struct sprd_div _struct = { \
- .div = _SPRD_DIV_CLK(_shift, _width), \
+ .div = _SPRD_DIV_CLK(_offset, _shift, _width), \
.common = { \
.regmap = NULL, \
.reg = _reg, \
@@ -49,12 +51,17 @@ struct sprd_div {
#define SPRD_DIV_CLK(_struct, _name, _parent, _reg, \
_shift, _width, _flags) \
- SPRD_DIV_CLK_HW_INIT_FN(_struct, _name, _parent, _reg, \
+ SPRD_DIV_CLK_HW_INIT_FN(_struct, _name, _parent, _reg, 0x0, \
_shift, _width, _flags, CLK_HW_INIT)
+#define SPRD_DIV_CLK_FW_NAME(_struct, _name, _parent, _reg, \
+ _shift, _width, _flags) \
+ SPRD_DIV_CLK_HW_INIT_FN(_struct, _name, _parent, _reg, 0x0, \
+ _shift, _width, _flags, CLK_HW_INIT_FW_NAME)
+
#define SPRD_DIV_CLK_HW(_struct, _name, _parent, _reg, \
_shift, _width, _flags) \
- SPRD_DIV_CLK_HW_INIT_FN(_struct, _name, _parent, _reg, \
+ SPRD_DIV_CLK_HW_INIT_FN(_struct, _name, _parent, _reg, 0x0, \
_shift, _width, _flags, CLK_HW_INIT_HW)
static inline struct sprd_div *hw_to_sprd_div(const struct clk_hw *hw)
--
2.17.1
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