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path: root/drivers/clk/starfive/clk-starfive-jh71x0.c
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-rw-r--r--drivers/clk/starfive/clk-starfive-jh71x0.c282
1 files changed, 141 insertions, 141 deletions
diff --git a/drivers/clk/starfive/clk-starfive-jh71x0.c b/drivers/clk/starfive/clk-starfive-jh71x0.c
index 0140bdf27a01..b372083d11c3 100644
--- a/drivers/clk/starfive/clk-starfive-jh71x0.c
+++ b/drivers/clk/starfive/clk-starfive-jh71x0.c
@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
/*
- * StarFive JH7100 Clock Generator Driver
+ * StarFive JH71X0 Clock Generator Driver
*
* Copyright (C) 2021-2022 Emil Renner Berthing <kernel@esmil.dk>
*/
@@ -12,27 +12,27 @@
#include "clk-starfive-jh71x0.h"
-static struct jh7100_clk *jh7100_clk_from(struct clk_hw *hw)
+static struct jh71x0_clk *jh71x0_clk_from(struct clk_hw *hw)
{
- return container_of(hw, struct jh7100_clk, hw);
+ return container_of(hw, struct jh71x0_clk, hw);
}
-static struct jh7100_clk_priv *jh7100_priv_from(struct jh7100_clk *clk)
+static struct jh71x0_clk_priv *jh71x0_priv_from(struct jh71x0_clk *clk)
{
- return container_of(clk, struct jh7100_clk_priv, reg[clk->idx]);
+ return container_of(clk, struct jh71x0_clk_priv, reg[clk->idx]);
}
-static u32 jh7100_clk_reg_get(struct jh7100_clk *clk)
+static u32 jh71x0_clk_reg_get(struct jh71x0_clk *clk)
{
- struct jh7100_clk_priv *priv = jh7100_priv_from(clk);
+ struct jh71x0_clk_priv *priv = jh71x0_priv_from(clk);
void __iomem *reg = priv->base + 4 * clk->idx;
return readl_relaxed(reg);
}
-static void jh7100_clk_reg_rmw(struct jh7100_clk *clk, u32 mask, u32 value)
+static void jh71x0_clk_reg_rmw(struct jh71x0_clk *clk, u32 mask, u32 value)
{
- struct jh7100_clk_priv *priv = jh7100_priv_from(clk);
+ struct jh71x0_clk_priv *priv = jh71x0_priv_from(clk);
void __iomem *reg = priv->base + 4 * clk->idx;
unsigned long flags;
@@ -42,41 +42,41 @@ static void jh7100_clk_reg_rmw(struct jh7100_clk *clk, u32 mask, u32 value)
spin_unlock_irqrestore(&priv->rmw_lock, flags);
}
-static int jh7100_clk_enable(struct clk_hw *hw)
+static int jh71x0_clk_enable(struct clk_hw *hw)
{
- struct jh7100_clk *clk = jh7100_clk_from(hw);
+ struct jh71x0_clk *clk = jh71x0_clk_from(hw);
- jh7100_clk_reg_rmw(clk, JH7100_CLK_ENABLE, JH7100_CLK_ENABLE);
+ jh71x0_clk_reg_rmw(clk, JH71X0_CLK_ENABLE, JH71X0_CLK_ENABLE);
return 0;
}
-static void jh7100_clk_disable(struct clk_hw *hw)
+static void jh71x0_clk_disable(struct clk_hw *hw)
{
- struct jh7100_clk *clk = jh7100_clk_from(hw);
+ struct jh71x0_clk *clk = jh71x0_clk_from(hw);
- jh7100_clk_reg_rmw(clk, JH7100_CLK_ENABLE, 0);
+ jh71x0_clk_reg_rmw(clk, JH71X0_CLK_ENABLE, 0);
}
-static int jh7100_clk_is_enabled(struct clk_hw *hw)
+static int jh71x0_clk_is_enabled(struct clk_hw *hw)
{
- struct jh7100_clk *clk = jh7100_clk_from(hw);
+ struct jh71x0_clk *clk = jh71x0_clk_from(hw);
- return !!(jh7100_clk_reg_get(clk) & JH7100_CLK_ENABLE);
+ return !!(jh71x0_clk_reg_get(clk) & JH71X0_CLK_ENABLE);
}
-static unsigned long jh7100_clk_recalc_rate(struct clk_hw *hw,
+static unsigned long jh71x0_clk_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
- struct jh7100_clk *clk = jh7100_clk_from(hw);
- u32 div = jh7100_clk_reg_get(clk) & JH7100_CLK_DIV_MASK;
+ struct jh71x0_clk *clk = jh71x0_clk_from(hw);
+ u32 div = jh71x0_clk_reg_get(clk) & JH71X0_CLK_DIV_MASK;
return div ? parent_rate / div : 0;
}
-static int jh7100_clk_determine_rate(struct clk_hw *hw,
+static int jh71x0_clk_determine_rate(struct clk_hw *hw,
struct clk_rate_request *req)
{
- struct jh7100_clk *clk = jh7100_clk_from(hw);
+ struct jh71x0_clk *clk = jh71x0_clk_from(hw);
unsigned long parent = req->best_parent_rate;
unsigned long rate = clamp(req->rate, req->min_rate, req->max_rate);
unsigned long div = min_t(unsigned long, DIV_ROUND_UP(parent, rate), clk->max_div);
@@ -102,232 +102,232 @@ static int jh7100_clk_determine_rate(struct clk_hw *hw,
return 0;
}
-static int jh7100_clk_set_rate(struct clk_hw *hw,
+static int jh71x0_clk_set_rate(struct clk_hw *hw,
unsigned long rate,
unsigned long parent_rate)
{
- struct jh7100_clk *clk = jh7100_clk_from(hw);
+ struct jh71x0_clk *clk = jh71x0_clk_from(hw);
unsigned long div = clamp(DIV_ROUND_CLOSEST(parent_rate, rate),
1UL, (unsigned long)clk->max_div);
- jh7100_clk_reg_rmw(clk, JH7100_CLK_DIV_MASK, div);
+ jh71x0_clk_reg_rmw(clk, JH71X0_CLK_DIV_MASK, div);
return 0;
}
-static unsigned long jh7100_clk_frac_recalc_rate(struct clk_hw *hw,
+static unsigned long jh71x0_clk_frac_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
- struct jh7100_clk *clk = jh7100_clk_from(hw);
- u32 reg = jh7100_clk_reg_get(clk);
- unsigned long div100 = 100 * (reg & JH7100_CLK_INT_MASK) +
- ((reg & JH7100_CLK_FRAC_MASK) >> JH7100_CLK_FRAC_SHIFT);
+ struct jh71x0_clk *clk = jh71x0_clk_from(hw);
+ u32 reg = jh71x0_clk_reg_get(clk);
+ unsigned long div100 = 100 * (reg & JH71X0_CLK_INT_MASK) +
+ ((reg & JH71X0_CLK_FRAC_MASK) >> JH71X0_CLK_FRAC_SHIFT);
- return (div100 >= JH7100_CLK_FRAC_MIN) ? 100 * parent_rate / div100 : 0;
+ return (div100 >= JH71X0_CLK_FRAC_MIN) ? 100 * parent_rate / div100 : 0;
}
-static int jh7100_clk_frac_determine_rate(struct clk_hw *hw,
+static int jh71x0_clk_frac_determine_rate(struct clk_hw *hw,
struct clk_rate_request *req)
{
unsigned long parent100 = 100 * req->best_parent_rate;
unsigned long rate = clamp(req->rate, req->min_rate, req->max_rate);
unsigned long div100 = clamp(DIV_ROUND_CLOSEST(parent100, rate),
- JH7100_CLK_FRAC_MIN, JH7100_CLK_FRAC_MAX);
+ JH71X0_CLK_FRAC_MIN, JH71X0_CLK_FRAC_MAX);
unsigned long result = parent100 / div100;
- /* clamp the result as in jh7100_clk_determine_rate() above */
- if (result > req->max_rate && div100 < JH7100_CLK_FRAC_MAX)
+ /* clamp the result as in jh71x0_clk_determine_rate() above */
+ if (result > req->max_rate && div100 < JH71X0_CLK_FRAC_MAX)
result = parent100 / (div100 + 1);
- if (result < req->min_rate && div100 > JH7100_CLK_FRAC_MIN)
+ if (result < req->min_rate && div100 > JH71X0_CLK_FRAC_MIN)
result = parent100 / (div100 - 1);
req->rate = result;
return 0;
}
-static int jh7100_clk_frac_set_rate(struct clk_hw *hw,
+static int jh71x0_clk_frac_set_rate(struct clk_hw *hw,
unsigned long rate,
unsigned long parent_rate)
{
- struct jh7100_clk *clk = jh7100_clk_from(hw);
+ struct jh71x0_clk *clk = jh71x0_clk_from(hw);
unsigned long div100 = clamp(DIV_ROUND_CLOSEST(100 * parent_rate, rate),
- JH7100_CLK_FRAC_MIN, JH7100_CLK_FRAC_MAX);
- u32 value = ((div100 % 100) << JH7100_CLK_FRAC_SHIFT) | (div100 / 100);
+ JH71X0_CLK_FRAC_MIN, JH71X0_CLK_FRAC_MAX);
+ u32 value = ((div100 % 100) << JH71X0_CLK_FRAC_SHIFT) | (div100 / 100);
- jh7100_clk_reg_rmw(clk, JH7100_CLK_DIV_MASK, value);
+ jh71x0_clk_reg_rmw(clk, JH71X0_CLK_DIV_MASK, value);
return 0;
}
-static u8 jh7100_clk_get_parent(struct clk_hw *hw)
+static u8 jh71x0_clk_get_parent(struct clk_hw *hw)
{
- struct jh7100_clk *clk = jh7100_clk_from(hw);
- u32 value = jh7100_clk_reg_get(clk);
+ struct jh71x0_clk *clk = jh71x0_clk_from(hw);
+ u32 value = jh71x0_clk_reg_get(clk);
- return (value & JH7100_CLK_MUX_MASK) >> JH7100_CLK_MUX_SHIFT;
+ return (value & JH71X0_CLK_MUX_MASK) >> JH71X0_CLK_MUX_SHIFT;
}
-static int jh7100_clk_set_parent(struct clk_hw *hw, u8 index)
+static int jh71x0_clk_set_parent(struct clk_hw *hw, u8 index)
{
- struct jh7100_clk *clk = jh7100_clk_from(hw);
- u32 value = (u32)index << JH7100_CLK_MUX_SHIFT;
+ struct jh71x0_clk *clk = jh71x0_clk_from(hw);
+ u32 value = (u32)index << JH71X0_CLK_MUX_SHIFT;
- jh7100_clk_reg_rmw(clk, JH7100_CLK_MUX_MASK, value);
+ jh71x0_clk_reg_rmw(clk, JH71X0_CLK_MUX_MASK, value);
return 0;
}
-static int jh7100_clk_mux_determine_rate(struct clk_hw *hw,
+static int jh71x0_clk_mux_determine_rate(struct clk_hw *hw,
struct clk_rate_request *req)
{
return clk_mux_determine_rate_flags(hw, req, 0);
}
-static int jh7100_clk_get_phase(struct clk_hw *hw)
+static int jh71x0_clk_get_phase(struct clk_hw *hw)
{
- struct jh7100_clk *clk = jh7100_clk_from(hw);
- u32 value = jh7100_clk_reg_get(clk);
+ struct jh71x0_clk *clk = jh71x0_clk_from(hw);
+ u32 value = jh71x0_clk_reg_get(clk);
- return (value & JH7100_CLK_INVERT) ? 180 : 0;
+ return (value & JH71X0_CLK_INVERT) ? 180 : 0;
}
-static int jh7100_clk_set_phase(struct clk_hw *hw, int degrees)
+static int jh71x0_clk_set_phase(struct clk_hw *hw, int degrees)
{
- struct jh7100_clk *clk = jh7100_clk_from(hw);
+ struct jh71x0_clk *clk = jh71x0_clk_from(hw);
u32 value;
if (degrees == 0)
value = 0;
else if (degrees == 180)
- value = JH7100_CLK_INVERT;
+ value = JH71X0_CLK_INVERT;
else
return -EINVAL;
- jh7100_clk_reg_rmw(clk, JH7100_CLK_INVERT, value);
+ jh71x0_clk_reg_rmw(clk, JH71X0_CLK_INVERT, value);
return 0;
}
#ifdef CONFIG_DEBUG_FS
-static void jh7100_clk_debug_init(struct clk_hw *hw, struct dentry *dentry)
+static void jh71x0_clk_debug_init(struct clk_hw *hw, struct dentry *dentry)
{
- static const struct debugfs_reg32 jh7100_clk_reg = {
+ static const struct debugfs_reg32 jh71x0_clk_reg = {
.name = "CTRL",
.offset = 0,
};
- struct jh7100_clk *clk = jh7100_clk_from(hw);
- struct jh7100_clk_priv *priv = jh7100_priv_from(clk);
+ struct jh71x0_clk *clk = jh71x0_clk_from(hw);
+ struct jh71x0_clk_priv *priv = jh71x0_priv_from(clk);
struct debugfs_regset32 *regset;
regset = devm_kzalloc(priv->dev, sizeof(*regset), GFP_KERNEL);
if (!regset)
return;
- regset->regs = &jh7100_clk_reg;
+ regset->regs = &jh71x0_clk_reg;
regset->nregs = 1;
regset->base = priv->base + 4 * clk->idx;
debugfs_create_regset32("registers", 0400, dentry, regset);
}
#else
-#define jh7100_clk_debug_init NULL
+#define jh71x0_clk_debug_init NULL
#endif
-static const struct clk_ops jh7100_clk_gate_ops = {
- .enable = jh7100_clk_enable,
- .disable = jh7100_clk_disable,
- .is_enabled = jh7100_clk_is_enabled,
- .debug_init = jh7100_clk_debug_init,
+static const struct clk_ops jh71x0_clk_gate_ops = {
+ .enable = jh71x0_clk_enable,
+ .disable = jh71x0_clk_disable,
+ .is_enabled = jh71x0_clk_is_enabled,
+ .debug_init = jh71x0_clk_debug_init,
};
-static const struct clk_ops jh7100_clk_div_ops = {
- .recalc_rate = jh7100_clk_recalc_rate,
- .determine_rate = jh7100_clk_determine_rate,
- .set_rate = jh7100_clk_set_rate,
- .debug_init = jh7100_clk_debug_init,
+static const struct clk_ops jh71x0_clk_div_ops = {
+ .recalc_rate = jh71x0_clk_recalc_rate,
+ .determine_rate = jh71x0_clk_determine_rate,
+ .set_rate = jh71x0_clk_set_rate,
+ .debug_init = jh71x0_clk_debug_init,
};
-static const struct clk_ops jh7100_clk_fdiv_ops = {
- .recalc_rate = jh7100_clk_frac_recalc_rate,
- .determine_rate = jh7100_clk_frac_determine_rate,
- .set_rate = jh7100_clk_frac_set_rate,
- .debug_init = jh7100_clk_debug_init,
+static const struct clk_ops jh71x0_clk_fdiv_ops = {
+ .recalc_rate = jh71x0_clk_frac_recalc_rate,
+ .determine_rate = jh71x0_clk_frac_determine_rate,
+ .set_rate = jh71x0_clk_frac_set_rate,
+ .debug_init = jh71x0_clk_debug_init,
};
-static const struct clk_ops jh7100_clk_gdiv_ops = {
- .enable = jh7100_clk_enable,
- .disable = jh7100_clk_disable,
- .is_enabled = jh7100_clk_is_enabled,
- .recalc_rate = jh7100_clk_recalc_rate,
- .determine_rate = jh7100_clk_determine_rate,
- .set_rate = jh7100_clk_set_rate,
- .debug_init = jh7100_clk_debug_init,
+static const struct clk_ops jh71x0_clk_gdiv_ops = {
+ .enable = jh71x0_clk_enable,
+ .disable = jh71x0_clk_disable,
+ .is_enabled = jh71x0_clk_is_enabled,
+ .recalc_rate = jh71x0_clk_recalc_rate,
+ .determine_rate = jh71x0_clk_determine_rate,
+ .set_rate = jh71x0_clk_set_rate,
+ .debug_init = jh71x0_clk_debug_init,
};
-static const struct clk_ops jh7100_clk_mux_ops = {
- .determine_rate = jh7100_clk_mux_determine_rate,
- .set_parent = jh7100_clk_set_parent,
- .get_parent = jh7100_clk_get_parent,
- .debug_init = jh7100_clk_debug_init,
+static const struct clk_ops jh71x0_clk_mux_ops = {
+ .determine_rate = jh71x0_clk_mux_determine_rate,
+ .set_parent = jh71x0_clk_set_parent,
+ .get_parent = jh71x0_clk_get_parent,
+ .debug_init = jh71x0_clk_debug_init,
};
-static const struct clk_ops jh7100_clk_gmux_ops = {
- .enable = jh7100_clk_enable,
- .disable = jh7100_clk_disable,
- .is_enabled = jh7100_clk_is_enabled,
- .determine_rate = jh7100_clk_mux_determine_rate,
- .set_parent = jh7100_clk_set_parent,
- .get_parent = jh7100_clk_get_parent,
- .debug_init = jh7100_clk_debug_init,
+static const struct clk_ops jh71x0_clk_gmux_ops = {
+ .enable = jh71x0_clk_enable,
+ .disable = jh71x0_clk_disable,
+ .is_enabled = jh71x0_clk_is_enabled,
+ .determine_rate = jh71x0_clk_mux_determine_rate,
+ .set_parent = jh71x0_clk_set_parent,
+ .get_parent = jh71x0_clk_get_parent,
+ .debug_init = jh71x0_clk_debug_init,
};
-static const struct clk_ops jh7100_clk_mdiv_ops = {
- .recalc_rate = jh7100_clk_recalc_rate,
- .determine_rate = jh7100_clk_determine_rate,
- .get_parent = jh7100_clk_get_parent,
- .set_parent = jh7100_clk_set_parent,
- .set_rate = jh7100_clk_set_rate,
- .debug_init = jh7100_clk_debug_init,
+static const struct clk_ops jh71x0_clk_mdiv_ops = {
+ .recalc_rate = jh71x0_clk_recalc_rate,
+ .determine_rate = jh71x0_clk_determine_rate,
+ .get_parent = jh71x0_clk_get_parent,
+ .set_parent = jh71x0_clk_set_parent,
+ .set_rate = jh71x0_clk_set_rate,
+ .debug_init = jh71x0_clk_debug_init,
};
-static const struct clk_ops jh7100_clk_gmd_ops = {
- .enable = jh7100_clk_enable,
- .disable = jh7100_clk_disable,
- .is_enabled = jh7100_clk_is_enabled,
- .recalc_rate = jh7100_clk_recalc_rate,
- .determine_rate = jh7100_clk_determine_rate,
- .get_parent = jh7100_clk_get_parent,
- .set_parent = jh7100_clk_set_parent,
- .set_rate = jh7100_clk_set_rate,
- .debug_init = jh7100_clk_debug_init,
+static const struct clk_ops jh71x0_clk_gmd_ops = {
+ .enable = jh71x0_clk_enable,
+ .disable = jh71x0_clk_disable,
+ .is_enabled = jh71x0_clk_is_enabled,
+ .recalc_rate = jh71x0_clk_recalc_rate,
+ .determine_rate = jh71x0_clk_determine_rate,
+ .get_parent = jh71x0_clk_get_parent,
+ .set_parent = jh71x0_clk_set_parent,
+ .set_rate = jh71x0_clk_set_rate,
+ .debug_init = jh71x0_clk_debug_init,
};
-static const struct clk_ops jh7100_clk_inv_ops = {
- .get_phase = jh7100_clk_get_phase,
- .set_phase = jh7100_clk_set_phase,
- .debug_init = jh7100_clk_debug_init,
+static const struct clk_ops jh71x0_clk_inv_ops = {
+ .get_phase = jh71x0_clk_get_phase,
+ .set_phase = jh71x0_clk_set_phase,
+ .debug_init = jh71x0_clk_debug_init,
};
-const struct clk_ops *starfive_jh7100_clk_ops(u32 max)
+const struct clk_ops *starfive_jh71x0_clk_ops(u32 max)
{
- if (max & JH7100_CLK_DIV_MASK) {
- if (max & JH7100_CLK_MUX_MASK) {
- if (max & JH7100_CLK_ENABLE)
- return &jh7100_clk_gmd_ops;
- return &jh7100_clk_mdiv_ops;
+ if (max & JH71X0_CLK_DIV_MASK) {
+ if (max & JH71X0_CLK_MUX_MASK) {
+ if (max & JH71X0_CLK_ENABLE)
+ return &jh71x0_clk_gmd_ops;
+ return &jh71x0_clk_mdiv_ops;
}
- if (max & JH7100_CLK_ENABLE)
- return &jh7100_clk_gdiv_ops;
- if (max == JH7100_CLK_FRAC_MAX)
- return &jh7100_clk_fdiv_ops;
- return &jh7100_clk_div_ops;
+ if (max & JH71X0_CLK_ENABLE)
+ return &jh71x0_clk_gdiv_ops;
+ if (max == JH71X0_CLK_FRAC_MAX)
+ return &jh71x0_clk_fdiv_ops;
+ return &jh71x0_clk_div_ops;
}
- if (max & JH7100_CLK_MUX_MASK) {
- if (max & JH7100_CLK_ENABLE)
- return &jh7100_clk_gmux_ops;
- return &jh7100_clk_mux_ops;
+ if (max & JH71X0_CLK_MUX_MASK) {
+ if (max & JH71X0_CLK_ENABLE)
+ return &jh71x0_clk_gmux_ops;
+ return &jh71x0_clk_mux_ops;
}
- if (max & JH7100_CLK_ENABLE)
- return &jh7100_clk_gate_ops;
+ if (max & JH71X0_CLK_ENABLE)
+ return &jh71x0_clk_gate_ops;
- return &jh7100_clk_inv_ops;
+ return &jh71x0_clk_inv_ops;
}
-EXPORT_SYMBOL_GPL(starfive_jh7100_clk_ops);
+EXPORT_SYMBOL_GPL(starfive_jh71x0_clk_ops);
generated by cgit v1.2.3 (git 2.39.0) at 2024-08-06 03:07:37 +0300