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clk: ti: change clk_ti_latch() signature

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The clock access functions exported by the clk header use the
struct clk_ti_reg parameter to get the address of the register. This
must also apply to clk_ti_latch(). Changes to TI's clk-mux and
clk-divider drivers prevented the patch from generating compile errors.

Signed-off-by: Dario Binacchi <dariobin@libero.it>
This commit is contained in:
Dario Binacchi 2021-05-01 17:05:23 +02:00 committed by Lokesh Vutla
parent b1aef0384f
commit 2dd2f3ea6d
4 changed files with 28 additions and 24 deletions
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20
drivers/clk/ti/clk-divider.c
View file

@ -27,7 +27,7 @@
struct clk_ti_divider_priv {
struct clk parent;
fdt_addr_t reg;
struct clk_ti_reg reg;
const struct clk_div_table *table;
u8 shift;
u8 flags;
@ -200,11 +200,11 @@ static ulong clk_ti_divider_set_rate(struct clk *clk, ulong rate)
val = _get_val(priv->table, priv->div_flags, div);
v = readl(priv->reg);
v = clk_ti_readl(&priv->reg);
v &= ~(priv->mask << priv->shift);
v |= val << priv->shift;
writel(v, priv->reg);
clk_ti_latch(priv->reg, priv->latch);
clk_ti_writel(v, &priv->reg);
clk_ti_latch(&priv->reg, priv->latch);
return clk_get_rate(clk);
}
@ -220,7 +220,7 @@ static ulong clk_ti_divider_get_rate(struct clk *clk)
if (IS_ERR_VALUE(parent_rate))
return parent_rate;
v = readl(priv->reg) >> priv->shift;
v = clk_ti_readl(&priv->reg) >> priv->shift;
v &= priv->mask;
div = _get_div(priv->table, priv->div_flags, v);
@ -287,10 +287,14 @@ static int clk_ti_divider_of_to_plat(struct udevice *dev)
u32 min_div = 0;
u32 max_val, max_div = 0;
u16 mask;
int i, div_num;
int i, div_num, err;
err = clk_ti_get_reg_addr(dev, 0, &priv->reg);
if (err) {
dev_err(dev, "failed to get register address\n");
return err;
}
priv->reg = dev_read_addr(dev);
dev_dbg(dev, "reg=0x%08lx\n", priv->reg);
priv->shift = dev_read_u32_default(dev, "ti,bit-shift", 0);
priv->latch = dev_read_s32_default(dev, "ti,latch-bit", -EINVAL);
if (dev_read_bool(dev, "ti,index-starts-at-one"))

20
drivers/clk/ti/clk-mux.c
View file

@ -17,7 +17,7 @@
struct clk_ti_mux_priv {
struct clk_bulk parents;
fdt_addr_t reg;
struct clk_ti_reg reg;
u32 flags;
u32 mux_flags;
u32 mask;
@ -58,7 +58,7 @@ static int clk_ti_mux_get_index(struct clk *clk)
struct clk_ti_mux_priv *priv = dev_get_priv(clk->dev);
u32 val;
val = readl(priv->reg);
val = clk_ti_readl(&priv->reg);
val >>= priv->shift;
val &= priv->mask;
@ -91,13 +91,13 @@ static int clk_ti_mux_set_parent(struct clk *clk, struct clk *parent)
if (priv->flags & CLK_MUX_HIWORD_MASK) {
val = priv->mask << (priv->shift + 16);
} else {
val = readl(priv->reg);
val = clk_ti_readl(&priv->reg);
val &= ~(priv->mask << priv->shift);
}
val |= index << priv->shift;
writel(val, priv->reg);
clk_ti_latch(priv->reg, priv->latch);
clk_ti_writel(val, &priv->reg);
clk_ti_latch(&priv->reg, priv->latch);
return 0;
}
@ -215,14 +215,14 @@ static int clk_ti_mux_probe(struct udevice *dev)
static int clk_ti_mux_of_to_plat(struct udevice *dev)
{
struct clk_ti_mux_priv *priv = dev_get_priv(dev);
int err;
priv->reg = dev_read_addr(dev);
if (priv->reg == FDT_ADDR_T_NONE) {
dev_err(dev, "failed to get register\n");
return -EINVAL;
err = clk_ti_get_reg_addr(dev, 0, &priv->reg);
if (err) {
dev_err(dev, "failed to get register address\n");
return err;
}
dev_dbg(dev, "reg=0x%08lx\n", priv->reg);
priv->shift = dev_read_u32_default(dev, "ti,bit-shift", 0);
priv->latch = dev_read_s32_default(dev, "ti,latch-bit", -EINVAL);

10
drivers/clk/ti/clk.c
View file

@ -23,17 +23,17 @@ struct clk_iomap {
static unsigned int clk_memmaps_num;
static struct clk_iomap clk_memmaps[CLK_MAX_MEMMAPS];
static void clk_ti_rmw(u32 val, u32 mask, fdt_addr_t reg)
static void clk_ti_rmw(u32 val, u32 mask, struct clk_ti_reg *reg)
{
u32 v;
v = readl(reg);
v = clk_ti_readl(reg);
v &= ~mask;
v |= val;
writel(v, reg);
clk_ti_writel(v, reg);
}
void clk_ti_latch(fdt_addr_t reg, s8 shift)
void clk_ti_latch(struct clk_ti_reg *reg, s8 shift)
{
u32 latch;
@ -44,7 +44,7 @@ void clk_ti_latch(fdt_addr_t reg, s8 shift)
clk_ti_rmw(latch, latch, reg);
clk_ti_rmw(0, latch, reg);
readl(reg); /* OCP barrier */
clk_ti_readl(reg); /* OCP barrier */
}
void clk_ti_writel(u32 val, struct clk_ti_reg *reg)

2
drivers/clk/ti/clk.h
View file

@ -8,7 +8,6 @@
#ifndef _CLK_TI_H
#define _CLK_TI_H
void clk_ti_latch(fdt_addr_t reg, s8 shift);
/**
* struct clk_ti_reg - TI register declaration
* @offset: offset from the master IP module base address
@ -19,6 +18,7 @@ struct clk_ti_reg {
u8 index;
};
void clk_ti_latch(struct clk_ti_reg *reg, s8 shift);
void clk_ti_writel(u32 val, struct clk_ti_reg *reg);
u32 clk_ti_readl(struct clk_ti_reg *reg);
int clk_ti_get_reg_addr(struct udevice *dev, int index, struct clk_ti_reg *reg);