#define PLL_SCCG_LOCK_TIMEOUT 70
-struct clk_sccg_pll_setup {
+struct clk_sscg_pll_setup {
int divr1, divf1;
int divr2, divf2;
int divq;
int fout_error;
};
-struct clk_sccg_pll {
+struct clk_sscg_pll {
struct clk_hw hw;
const struct clk_ops ops;
void __iomem *base;
- struct clk_sccg_pll_setup setup;
+ struct clk_sscg_pll_setup setup;
u8 parent;
u8 bypass1;
u8 bypass2;
};
-#define to_clk_sccg_pll(_hw) container_of(_hw, struct clk_sccg_pll, hw)
+#define to_clk_sscg_pll(_hw) container_of(_hw, struct clk_sscg_pll, hw)
-static int clk_sccg_pll_wait_lock(struct clk_sccg_pll *pll)
+static int clk_sscg_pll_wait_lock(struct clk_sscg_pll *pll)
{
u32 val;
return 0;
}
-static int clk_sccg_pll2_check_match(struct clk_sccg_pll_setup *setup,
- struct clk_sccg_pll_setup *temp_setup)
+static int clk_sscg_pll2_check_match(struct clk_sscg_pll_setup *setup,
+ struct clk_sscg_pll_setup *temp_setup)
{
int new_diff = temp_setup->fout - temp_setup->fout_request;
int diff = temp_setup->fout_error;
if (abs(diff) > abs(new_diff)) {
temp_setup->fout_error = new_diff;
- memcpy(setup, temp_setup, sizeof(struct clk_sccg_pll_setup));
+ memcpy(setup, temp_setup, sizeof(struct clk_sscg_pll_setup));
if (temp_setup->fout_request == temp_setup->fout)
return 0;
return -1;
}
-static int clk_sccg_divq_lookup(struct clk_sccg_pll_setup *setup,
- struct clk_sccg_pll_setup *temp_setup)
+static int clk_sscg_divq_lookup(struct clk_sscg_pll_setup *setup,
+ struct clk_sscg_pll_setup *temp_setup)
{
int ret = -EINVAL;
temp_setup->fout = temp_setup->vco2;
do_div(temp_setup->fout, 2 * (temp_setup->divq + 1));
- ret = clk_sccg_pll2_check_match(setup, temp_setup);
+ ret = clk_sscg_pll2_check_match(setup, temp_setup);
if (!ret) {
temp_setup->bypass = PLL_BYPASS1;
return ret;
return ret;
}
-static int clk_sccg_divf2_lookup(struct clk_sccg_pll_setup *setup,
- struct clk_sccg_pll_setup *temp_setup)
+static int clk_sscg_divf2_lookup(struct clk_sscg_pll_setup *setup,
+ struct clk_sscg_pll_setup *temp_setup)
{
int ret = -EINVAL;
for (temp_setup->divf2 = 0; temp_setup->divf2 <= PLL_DIVF2_MAX;
temp_setup->divf2++) {
- ret = clk_sccg_divq_lookup(setup, temp_setup);
+ ret = clk_sscg_divq_lookup(setup, temp_setup);
if (!ret)
return ret;
}
return ret;
}
-static int clk_sccg_divr2_lookup(struct clk_sccg_pll_setup *setup,
- struct clk_sccg_pll_setup *temp_setup)
+static int clk_sscg_divr2_lookup(struct clk_sscg_pll_setup *setup,
+ struct clk_sscg_pll_setup *temp_setup)
{
int ret = -EINVAL;
do_div(temp_setup->ref_div2, temp_setup->divr2 + 1);
if (temp_setup->ref_div2 >= PLL_STAGE2_REF_MIN_FREQ &&
temp_setup->ref_div2 <= PLL_STAGE2_REF_MAX_FREQ) {
- ret = clk_sccg_divf2_lookup(setup, temp_setup);
+ ret = clk_sscg_divf2_lookup(setup, temp_setup);
if (!ret)
return ret;
}
return ret;
}
-static int clk_sccg_pll2_find_setup(struct clk_sccg_pll_setup *setup,
- struct clk_sccg_pll_setup *temp_setup,
+static int clk_sscg_pll2_find_setup(struct clk_sscg_pll_setup *setup,
+ struct clk_sscg_pll_setup *temp_setup,
uint64_t ref)
{
temp_setup->vco1 = ref;
- ret = clk_sccg_divr2_lookup(setup, temp_setup);
+ ret = clk_sscg_divr2_lookup(setup, temp_setup);
return ret;
}
-static int clk_sccg_divf1_lookup(struct clk_sccg_pll_setup *setup,
- struct clk_sccg_pll_setup *temp_setup)
+static int clk_sscg_divf1_lookup(struct clk_sscg_pll_setup *setup,
+ struct clk_sscg_pll_setup *temp_setup)
{
int ret = -EINVAL;
vco1 *= 2;
vco1 *= temp_setup->divf1 + 1;
- ret = clk_sccg_pll2_find_setup(setup, temp_setup, vco1);
+ ret = clk_sscg_pll2_find_setup(setup, temp_setup, vco1);
if (!ret) {
temp_setup->bypass = PLL_BYPASS_NONE;
return ret;
return ret;
}
-static int clk_sccg_divr1_lookup(struct clk_sccg_pll_setup *setup,
- struct clk_sccg_pll_setup *temp_setup)
+static int clk_sscg_divr1_lookup(struct clk_sscg_pll_setup *setup,
+ struct clk_sscg_pll_setup *temp_setup)
{
int ret = -EINVAL;
do_div(temp_setup->ref_div1, temp_setup->divr1 + 1);
if (temp_setup->ref_div1 >= PLL_STAGE1_REF_MIN_FREQ &&
temp_setup->ref_div1 <= PLL_STAGE1_REF_MAX_FREQ) {
- ret = clk_sccg_divf1_lookup(setup, temp_setup);
+ ret = clk_sscg_divf1_lookup(setup, temp_setup);
if (!ret)
return ret;
}
return ret;
}
-static int clk_sccg_pll1_find_setup(struct clk_sccg_pll_setup *setup,
- struct clk_sccg_pll_setup *temp_setup,
+static int clk_sscg_pll1_find_setup(struct clk_sscg_pll_setup *setup,
+ struct clk_sscg_pll_setup *temp_setup,
uint64_t ref)
{
temp_setup->ref = ref;
- ret = clk_sccg_divr1_lookup(setup, temp_setup);
+ ret = clk_sscg_divr1_lookup(setup, temp_setup);
return ret;
}
-static int clk_sccg_pll_find_setup(struct clk_sccg_pll_setup *setup,
+static int clk_sscg_pll_find_setup(struct clk_sscg_pll_setup *setup,
uint64_t prate,
uint64_t rate, int try_bypass)
{
- struct clk_sccg_pll_setup temp_setup;
+ struct clk_sscg_pll_setup temp_setup;
int ret = -EINVAL;
- memset(&temp_setup, 0, sizeof(struct clk_sccg_pll_setup));
- memset(setup, 0, sizeof(struct clk_sccg_pll_setup));
+ memset(&temp_setup, 0, sizeof(struct clk_sscg_pll_setup));
+ memset(setup, 0, sizeof(struct clk_sscg_pll_setup));
temp_setup.fout_error = PLL_OUT_MAX_FREQ;
temp_setup.fout_request = rate;
break;
case PLL_BYPASS1:
- ret = clk_sccg_pll2_find_setup(setup, &temp_setup, prate);
+ ret = clk_sscg_pll2_find_setup(setup, &temp_setup, prate);
break;
case PLL_BYPASS_NONE:
- ret = clk_sccg_pll1_find_setup(setup, &temp_setup, prate);
+ ret = clk_sscg_pll1_find_setup(setup, &temp_setup, prate);
break;
}
}
-static int clk_sccg_pll_is_prepared(struct clk_hw *hw)
+static int clk_sscg_pll_is_prepared(struct clk_hw *hw)
{
- struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
+ struct clk_sscg_pll *pll = to_clk_sscg_pll(hw);
u32 val = readl_relaxed(pll->base + PLL_CFG0);
return (val & PLL_PD_MASK) ? 0 : 1;
}
-static int clk_sccg_pll_prepare(struct clk_hw *hw)
+static int clk_sscg_pll_prepare(struct clk_hw *hw)
{
- struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
+ struct clk_sscg_pll *pll = to_clk_sscg_pll(hw);
u32 val;
val = readl_relaxed(pll->base + PLL_CFG0);
val &= ~PLL_PD_MASK;
writel_relaxed(val, pll->base + PLL_CFG0);
- return clk_sccg_pll_wait_lock(pll);
+ return clk_sscg_pll_wait_lock(pll);
}
-static void clk_sccg_pll_unprepare(struct clk_hw *hw)
+static void clk_sscg_pll_unprepare(struct clk_hw *hw)
{
- struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
+ struct clk_sscg_pll *pll = to_clk_sscg_pll(hw);
u32 val;
val = readl_relaxed(pll->base + PLL_CFG0);
writel_relaxed(val, pll->base + PLL_CFG0);
}
-static unsigned long clk_sccg_pll_recalc_rate(struct clk_hw *hw,
+static unsigned long clk_sscg_pll_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
- struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
+ struct clk_sscg_pll *pll = to_clk_sscg_pll(hw);
u32 val, divr1, divf1, divr2, divf2, divq;
u64 temp64;
return temp64;
}
-static int clk_sccg_pll_set_rate(struct clk_hw *hw, unsigned long rate,
+static int clk_sscg_pll_set_rate(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate)
{
- struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
- struct clk_sccg_pll_setup *setup = &pll->setup;
+ struct clk_sscg_pll *pll = to_clk_sscg_pll(hw);
+ struct clk_sscg_pll_setup *setup = &pll->setup;
u32 val;
/* set bypass here too since the parent might be the same */
val |= FIELD_PREP(PLL_DIVQ_MASK, setup->divq);
writel_relaxed(val, pll->base + PLL_CFG2);
- return clk_sccg_pll_wait_lock(pll);
+ return clk_sscg_pll_wait_lock(pll);
}
-static u8 clk_sccg_pll_get_parent(struct clk_hw *hw)
+static u8 clk_sscg_pll_get_parent(struct clk_hw *hw)
{
- struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
+ struct clk_sscg_pll *pll = to_clk_sscg_pll(hw);
u32 val;
u8 ret = pll->parent;
return ret;
}
-static int clk_sccg_pll_set_parent(struct clk_hw *hw, u8 index)
+static int clk_sscg_pll_set_parent(struct clk_hw *hw, u8 index)
{
- struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
+ struct clk_sscg_pll *pll = to_clk_sscg_pll(hw);
u32 val;
val = readl(pll->base + PLL_CFG0);
val |= FIELD_PREP(SSCG_PLL_BYPASS_MASK, pll->setup.bypass);
writel(val, pll->base + PLL_CFG0);
- return clk_sccg_pll_wait_lock(pll);
+ return clk_sscg_pll_wait_lock(pll);
}
-static int __clk_sccg_pll_determine_rate(struct clk_hw *hw,
+static int __clk_sscg_pll_determine_rate(struct clk_hw *hw,
struct clk_rate_request *req,
uint64_t min,
uint64_t max,
uint64_t rate,
int bypass)
{
- struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
- struct clk_sccg_pll_setup *setup = &pll->setup;
+ struct clk_sscg_pll *pll = to_clk_sscg_pll(hw);
+ struct clk_sscg_pll_setup *setup = &pll->setup;
struct clk_hw *parent_hw = NULL;
int bypass_parent_index;
int ret = -EINVAL;
parent_hw = clk_hw_get_parent_by_index(hw, bypass_parent_index);
ret = __clk_determine_rate(parent_hw, req);
if (!ret) {
- ret = clk_sccg_pll_find_setup(setup, req->rate,
+ ret = clk_sscg_pll_find_setup(setup, req->rate,
rate, bypass);
}
return ret;
}
-static int clk_sccg_pll_determine_rate(struct clk_hw *hw,
+static int clk_sscg_pll_determine_rate(struct clk_hw *hw,
struct clk_rate_request *req)
{
- struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
- struct clk_sccg_pll_setup *setup = &pll->setup;
+ struct clk_sscg_pll *pll = to_clk_sscg_pll(hw);
+ struct clk_sscg_pll_setup *setup = &pll->setup;
uint64_t rate = req->rate;
uint64_t min = req->min_rate;
uint64_t max = req->max_rate;
if (rate < PLL_OUT_MIN_FREQ || rate > PLL_OUT_MAX_FREQ)
return ret;
- ret = __clk_sccg_pll_determine_rate(hw, req, req->rate, req->rate,
+ ret = __clk_sscg_pll_determine_rate(hw, req, req->rate, req->rate,
rate, PLL_BYPASS2);
if (!ret)
return ret;
- ret = __clk_sccg_pll_determine_rate(hw, req, PLL_STAGE1_REF_MIN_FREQ,
+ ret = __clk_sscg_pll_determine_rate(hw, req, PLL_STAGE1_REF_MIN_FREQ,
PLL_STAGE1_REF_MAX_FREQ, rate,
PLL_BYPASS1);
if (!ret)
return ret;
- ret = __clk_sccg_pll_determine_rate(hw, req, PLL_REF_MIN_FREQ,
+ ret = __clk_sscg_pll_determine_rate(hw, req, PLL_REF_MIN_FREQ,
PLL_REF_MAX_FREQ, rate,
PLL_BYPASS_NONE);
if (!ret)
return ret;
}
-static const struct clk_ops clk_sccg_pll_ops = {
- .prepare = clk_sccg_pll_prepare,
- .unprepare = clk_sccg_pll_unprepare,
- .is_prepared = clk_sccg_pll_is_prepared,
- .recalc_rate = clk_sccg_pll_recalc_rate,
- .set_rate = clk_sccg_pll_set_rate,
- .set_parent = clk_sccg_pll_set_parent,
- .get_parent = clk_sccg_pll_get_parent,
- .determine_rate = clk_sccg_pll_determine_rate,
+static const struct clk_ops clk_sscg_pll_ops = {
+ .prepare = clk_sscg_pll_prepare,
+ .unprepare = clk_sscg_pll_unprepare,
+ .is_prepared = clk_sscg_pll_is_prepared,
+ .recalc_rate = clk_sscg_pll_recalc_rate,
+ .set_rate = clk_sscg_pll_set_rate,
+ .set_parent = clk_sscg_pll_set_parent,
+ .get_parent = clk_sscg_pll_get_parent,
+ .determine_rate = clk_sscg_pll_determine_rate,
};
-struct clk *imx_clk_sccg_pll(const char *name,
+struct clk *imx_clk_sscg_pll(const char *name,
const char * const *parent_names,
u8 num_parents,
u8 parent, u8 bypass1, u8 bypass2,
void __iomem *base,
unsigned long flags)
{
- struct clk_sccg_pll *pll;
+ struct clk_sscg_pll *pll;
struct clk_init_data init;
struct clk_hw *hw;
int ret;
pll->base = base;
init.name = name;
- init.ops = &clk_sccg_pll_ops;
+ init.ops = &clk_sscg_pll_ops;
init.flags = flags;
init.parent_names = parent_names;