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clk: samsung: pll: Use new registration method for PLL6552 and PLL6553

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This patch modifies PLL6552 and PLL6553 clock drivers to use recently
added common Samsung PLL registration method.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
This commit is contained in:
Tomasz Figa 2013-08-21 02:33:21 +02:00 committed by Mike Turquette
parent 5cfe9614f3
commit 40ef723c8b
2 changed files with 13 additions and 98 deletions
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105
drivers/clk/samsung/clk-pll.c
View File

@ -441,9 +441,6 @@ struct clk * __init samsung_clk_register_pll46xx(const char *name,
* PLL6552 Clock Type
*/
#define PLL6552_LOCK_REG 0x00
#define PLL6552_CON_REG 0x0c
#define PLL6552_MDIV_MASK 0x3ff
#define PLL6552_PDIV_MASK 0x3f
#define PLL6552_SDIV_MASK 0x7
@ -451,21 +448,14 @@ struct clk * __init samsung_clk_register_pll46xx(const char *name,
#define PLL6552_PDIV_SHIFT 8
#define PLL6552_SDIV_SHIFT 0
struct samsung_clk_pll6552 {
struct clk_hw hw;
void __iomem *reg_base;
};
#define to_clk_pll6552(_hw) container_of(_hw, struct samsung_clk_pll6552, hw)
static unsigned long samsung_pll6552_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
struct samsung_clk_pll6552 *pll = to_clk_pll6552(hw);
struct samsung_clk_pll *pll = to_clk_pll(hw);
u32 mdiv, pdiv, sdiv, pll_con;
u64 fvco = parent_rate;
pll_con = __raw_readl(pll->reg_base + PLL6552_CON_REG);
pll_con = __raw_readl(pll->con_reg);
mdiv = (pll_con >> PLL6552_MDIV_SHIFT) & PLL6552_MDIV_MASK;
pdiv = (pll_con >> PLL6552_PDIV_SHIFT) & PLL6552_PDIV_MASK;
sdiv = (pll_con >> PLL6552_SDIV_SHIFT) & PLL6552_SDIV_MASK;
@ -480,48 +470,10 @@ static const struct clk_ops samsung_pll6552_clk_ops = {
.recalc_rate = samsung_pll6552_recalc_rate,
};
struct clk * __init samsung_clk_register_pll6552(const char *name,
const char *pname, void __iomem *base)
{
struct samsung_clk_pll6552 *pll;
struct clk *clk;
struct clk_init_data init;
pll = kzalloc(sizeof(*pll), GFP_KERNEL);
if (!pll) {
pr_err("%s: could not allocate pll clk %s\n", __func__, name);
return NULL;
}
init.name = name;
init.ops = &samsung_pll6552_clk_ops;
init.parent_names = &pname;
init.num_parents = 1;
pll->hw.init = &init;
pll->reg_base = base;
clk = clk_register(NULL, &pll->hw);
if (IS_ERR(clk)) {
pr_err("%s: failed to register pll clock %s\n", __func__,
name);
kfree(pll);
}
if (clk_register_clkdev(clk, name, NULL))
pr_err("%s: failed to register lookup for %s", __func__, name);
return clk;
}
/*
* PLL6553 Clock Type
*/
#define PLL6553_LOCK_REG 0x00
#define PLL6553_CON0_REG 0x0c
#define PLL6553_CON1_REG 0x10
#define PLL6553_MDIV_MASK 0xff
#define PLL6553_PDIV_MASK 0x3f
#define PLL6553_SDIV_MASK 0x7
@ -531,22 +483,15 @@ struct clk * __init samsung_clk_register_pll6552(const char *name,
#define PLL6553_SDIV_SHIFT 0
#define PLL6553_KDIV_SHIFT 0
struct samsung_clk_pll6553 {
struct clk_hw hw;
void __iomem *reg_base;
};
#define to_clk_pll6553(_hw) container_of(_hw, struct samsung_clk_pll6553, hw)
static unsigned long samsung_pll6553_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
struct samsung_clk_pll6553 *pll = to_clk_pll6553(hw);
struct samsung_clk_pll *pll = to_clk_pll(hw);
u32 mdiv, pdiv, sdiv, kdiv, pll_con0, pll_con1;
u64 fvco = parent_rate;
pll_con0 = __raw_readl(pll->reg_base + PLL6553_CON0_REG);
pll_con1 = __raw_readl(pll->reg_base + PLL6553_CON1_REG);
pll_con0 = __raw_readl(pll->con_reg);
pll_con1 = __raw_readl(pll->con_reg + 0x4);
mdiv = (pll_con0 >> PLL6553_MDIV_SHIFT) & PLL6553_MDIV_MASK;
pdiv = (pll_con0 >> PLL6553_PDIV_SHIFT) & PLL6553_PDIV_MASK;
sdiv = (pll_con0 >> PLL6553_SDIV_SHIFT) & PLL6553_SDIV_MASK;
@ -563,40 +508,6 @@ static const struct clk_ops samsung_pll6553_clk_ops = {
.recalc_rate = samsung_pll6553_recalc_rate,
};
struct clk * __init samsung_clk_register_pll6553(const char *name,
const char *pname, void __iomem *base)
{
struct samsung_clk_pll6553 *pll;
struct clk *clk;
struct clk_init_data init;
pll = kzalloc(sizeof(*pll), GFP_KERNEL);
if (!pll) {
pr_err("%s: could not allocate pll clk %s\n", __func__, name);
return NULL;
}
init.name = name;
init.ops = &samsung_pll6553_clk_ops;
init.parent_names = &pname;
init.num_parents = 1;
pll->hw.init = &init;
pll->reg_base = base;
clk = clk_register(NULL, &pll->hw);
if (IS_ERR(clk)) {
pr_err("%s: failed to register pll clock %s\n", __func__,
name);
kfree(pll);
}
if (clk_register_clkdev(clk, name, NULL))
pr_err("%s: failed to register lookup for %s", __func__, name);
return clk;
}
/*
* PLL2550x Clock Type
*/
@ -732,6 +643,12 @@ static void __init _samsung_clk_register_pll(struct samsung_pll_clock *pll_clk,
else
init.ops = &samsung_pll36xx_clk_ops;
break;
case pll_6552:
init.ops = &samsung_pll6552_clk_ops;
break;
case pll_6553:
init.ops = &samsung_pll6553_clk_ops;
break;
default:
pr_warn("%s: Unknown pll type for pll clk %s\n",
__func__, pll_clk->name);

6
drivers/clk/samsung/clk-pll.h
View File

@ -17,6 +17,8 @@ enum samsung_pll_type {
pll_36xx,
pll_2550,
pll_2650,
pll_6552,
pll_6553,
};
#define PLL_35XX_RATE(_rate, _m, _p, _s) \
@ -64,10 +66,6 @@ extern struct clk * __init samsung_clk_register_pll45xx(const char *name,
extern struct clk * __init samsung_clk_register_pll46xx(const char *name,
const char *pname, const void __iomem *con_reg,
enum pll46xx_type type);
extern struct clk *samsung_clk_register_pll6552(const char *name,
const char *pname, void __iomem *base);
extern struct clk *samsung_clk_register_pll6553(const char *name,
const char *pname, void __iomem *base);
extern struct clk * __init samsung_clk_register_pll2550x(const char *name,
const char *pname, const void __iomem *reg_base,
const unsigned long offset);