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-rw-r--r--drivers/clk/spacemit/ccu-k1.c61
-rw-r--r--drivers/clk/spacemit/ccu_ddn.c23
-rw-r--r--drivers/clk/spacemit/ccu_ddn.h6
-rw-r--r--drivers/clk/spacemit/ccu_mix.c12
-rw-r--r--drivers/clk/spacemit/ccu_pll.c10
5 files changed, 83 insertions, 29 deletions
diff --git a/drivers/clk/spacemit/ccu-k1.c b/drivers/clk/spacemit/ccu-k1.c
index 65e6de030717..f5a9fe6ba185 100644
--- a/drivers/clk/spacemit/ccu-k1.c
+++ b/drivers/clk/spacemit/ccu-k1.c
@@ -136,13 +136,33 @@ CCU_GATE_DEFINE(pll1_d3_819p2, CCU_PARENT_HW(pll1_d3), MPMU_ACGR, BIT(14), 0);
CCU_GATE_DEFINE(pll1_d2_1228p8, CCU_PARENT_HW(pll1_d2), MPMU_ACGR, BIT(16), 0);
CCU_GATE_DEFINE(slow_uart, CCU_PARENT_NAME(osc), MPMU_ACGR, BIT(1), CLK_IGNORE_UNUSED);
-CCU_DDN_DEFINE(slow_uart1_14p74, pll1_d16_153p6, MPMU_SUCCR, 16, 13, 0, 13, 0);
-CCU_DDN_DEFINE(slow_uart2_48, pll1_d4_614p4, MPMU_SUCCR_1, 16, 13, 0, 13, 0);
+CCU_DDN_DEFINE(slow_uart1_14p74, pll1_d16_153p6, MPMU_SUCCR, 16, 13, 0, 13, 2, 0);
+CCU_DDN_DEFINE(slow_uart2_48, pll1_d4_614p4, MPMU_SUCCR_1, 16, 13, 0, 13, 2, 0);
CCU_GATE_DEFINE(wdt_clk, CCU_PARENT_HW(pll1_d96_25p6), MPMU_WDTPCR, BIT(1), 0);
-CCU_FACTOR_GATE_DEFINE(i2s_sysclk, CCU_PARENT_HW(pll1_d16_153p6), MPMU_ISCCR, BIT(31), 50, 1);
-CCU_FACTOR_GATE_DEFINE(i2s_bclk, CCU_PARENT_HW(i2s_sysclk), MPMU_ISCCR, BIT(29), 1, 1);
+CCU_FACTOR_DEFINE(i2s_153p6, CCU_PARENT_HW(pll1_d8_307p2), 2, 1);
+
+static const struct clk_parent_data i2s_153p6_base_parents[] = {
+ CCU_PARENT_HW(i2s_153p6),
+ CCU_PARENT_HW(pll1_d8_307p2),
+};
+CCU_MUX_DEFINE(i2s_153p6_base, i2s_153p6_base_parents, MPMU_FCCR, 29, 1, 0);
+
+static const struct clk_parent_data i2s_sysclk_src_parents[] = {
+ CCU_PARENT_HW(pll1_d96_25p6),
+ CCU_PARENT_HW(i2s_153p6_base)
+};
+CCU_MUX_GATE_DEFINE(i2s_sysclk_src, i2s_sysclk_src_parents, MPMU_ISCCR, 30, 1, BIT(31), 0);
+
+CCU_DDN_DEFINE(i2s_sysclk, i2s_sysclk_src, MPMU_ISCCR, 0, 15, 15, 12, 1, 0);
+
+CCU_FACTOR_DEFINE(i2s_bclk_factor, CCU_PARENT_HW(i2s_sysclk), 2, 1);
+/*
+ * Divider of i2s_bclk always implies a 1/2 factor, which is
+ * described by i2s_bclk_factor.
+ */
+CCU_DIV_GATE_DEFINE(i2s_bclk, CCU_PARENT_HW(i2s_bclk_factor), MPMU_ISCCR, 27, 2, BIT(29), 0);
static const struct clk_parent_data apb_parents[] = {
CCU_PARENT_HW(pll1_d96_25p6),
@@ -247,7 +267,14 @@ CCU_GATE_DEFINE(aib_clk, CCU_PARENT_NAME(vctcxo_24m), APBC_AIB_CLK_RST, BIT(1),
CCU_GATE_DEFINE(onewire_clk, CCU_PARENT_NAME(vctcxo_24m), APBC_ONEWIRE_CLK_RST, BIT(1), 0);
-static const struct clk_parent_data sspa_parents[] = {
+/*
+ * When i2s_bclk is selected as the parent clock of sspa,
+ * the hardware requires bit3 to be set
+ */
+CCU_GATE_DEFINE(sspa0_i2s_bclk, CCU_PARENT_HW(i2s_bclk), APBC_SSPA0_CLK_RST, BIT(3), 0);
+CCU_GATE_DEFINE(sspa1_i2s_bclk, CCU_PARENT_HW(i2s_bclk), APBC_SSPA1_CLK_RST, BIT(3), 0);
+
+static const struct clk_parent_data sspa0_parents[] = {
CCU_PARENT_HW(pll1_d384_6p4),
CCU_PARENT_HW(pll1_d192_12p8),
CCU_PARENT_HW(pll1_d96_25p6),
@@ -255,10 +282,22 @@ static const struct clk_parent_data sspa_parents[] = {
CCU_PARENT_HW(pll1_d768_3p2),
CCU_PARENT_HW(pll1_d1536_1p6),
CCU_PARENT_HW(pll1_d3072_0p8),
- CCU_PARENT_HW(i2s_bclk),
+ CCU_PARENT_HW(sspa0_i2s_bclk),
};
-CCU_MUX_GATE_DEFINE(sspa0_clk, sspa_parents, APBC_SSPA0_CLK_RST, 4, 3, BIT(1), 0);
-CCU_MUX_GATE_DEFINE(sspa1_clk, sspa_parents, APBC_SSPA1_CLK_RST, 4, 3, BIT(1), 0);
+CCU_MUX_GATE_DEFINE(sspa0_clk, sspa0_parents, APBC_SSPA0_CLK_RST, 4, 3, BIT(1), 0);
+
+static const struct clk_parent_data sspa1_parents[] = {
+ CCU_PARENT_HW(pll1_d384_6p4),
+ CCU_PARENT_HW(pll1_d192_12p8),
+ CCU_PARENT_HW(pll1_d96_25p6),
+ CCU_PARENT_HW(pll1_d48_51p2),
+ CCU_PARENT_HW(pll1_d768_3p2),
+ CCU_PARENT_HW(pll1_d1536_1p6),
+ CCU_PARENT_HW(pll1_d3072_0p8),
+ CCU_PARENT_HW(sspa1_i2s_bclk),
+};
+CCU_MUX_GATE_DEFINE(sspa1_clk, sspa1_parents, APBC_SSPA1_CLK_RST, 4, 3, BIT(1), 0);
+
CCU_GATE_DEFINE(dro_clk, CCU_PARENT_HW(apb_clk), APBC_DRO_CLK_RST, BIT(1), 0);
CCU_GATE_DEFINE(ir_clk, CCU_PARENT_HW(apb_clk), APBC_IR_CLK_RST, BIT(1), 0);
CCU_GATE_DEFINE(tsen_clk, CCU_PARENT_HW(apb_clk), APBC_TSEN_CLK_RST, BIT(1), 0);
@@ -756,6 +795,10 @@ static struct clk_hw *k1_ccu_mpmu_hws[] = {
[CLK_I2S_BCLK] = &i2s_bclk.common.hw,
[CLK_APB] = &apb_clk.common.hw,
[CLK_WDT_BUS] = &wdt_bus_clk.common.hw,
+ [CLK_I2S_153P6] = &i2s_153p6.common.hw,
+ [CLK_I2S_153P6_BASE] = &i2s_153p6_base.common.hw,
+ [CLK_I2S_SYSCLK_SRC] = &i2s_sysclk_src.common.hw,
+ [CLK_I2S_BCLK_FACTOR] = &i2s_bclk_factor.common.hw,
};
static const struct spacemit_ccu_data k1_ccu_mpmu_data = {
@@ -865,6 +908,8 @@ static struct clk_hw *k1_ccu_apbc_hws[] = {
[CLK_SSPA1_BUS] = &sspa1_bus_clk.common.hw,
[CLK_TSEN_BUS] = &tsen_bus_clk.common.hw,
[CLK_IPC_AP2AUD_BUS] = &ipc_ap2aud_bus_clk.common.hw,
+ [CLK_SSPA0_I2S_BCLK] = &sspa0_i2s_bclk.common.hw,
+ [CLK_SSPA1_I2S_BCLK] = &sspa1_i2s_bclk.common.hw,
};
static const struct spacemit_ccu_data k1_ccu_apbc_data = {
diff --git a/drivers/clk/spacemit/ccu_ddn.c b/drivers/clk/spacemit/ccu_ddn.c
index be311b045698..5b16e273bee5 100644
--- a/drivers/clk/spacemit/ccu_ddn.c
+++ b/drivers/clk/spacemit/ccu_ddn.c
@@ -22,30 +22,33 @@
#include "ccu_ddn.h"
-static unsigned long ccu_ddn_calc_rate(unsigned long prate,
- unsigned long num, unsigned long den)
+static unsigned long ccu_ddn_calc_rate(unsigned long prate, unsigned long num,
+ unsigned long den, unsigned int pre_div)
{
- return prate * den / 2 / num;
+ return prate * den / pre_div / num;
}
static unsigned long ccu_ddn_calc_best_rate(struct ccu_ddn *ddn,
unsigned long rate, unsigned long prate,
unsigned long *num, unsigned long *den)
{
- rational_best_approximation(rate, prate / 2,
+ rational_best_approximation(rate, prate / ddn->pre_div,
ddn->den_mask >> ddn->den_shift,
ddn->num_mask >> ddn->num_shift,
den, num);
- return ccu_ddn_calc_rate(prate, *num, *den);
+ return ccu_ddn_calc_rate(prate, *num, *den, ddn->pre_div);
}
-static long ccu_ddn_round_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long *prate)
+static int ccu_ddn_determine_rate(struct clk_hw *hw,
+ struct clk_rate_request *req)
{
struct ccu_ddn *ddn = hw_to_ccu_ddn(hw);
unsigned long num, den;
- return ccu_ddn_calc_best_rate(ddn, rate, *prate, &num, &den);
+ req->rate = ccu_ddn_calc_best_rate(ddn, req->rate,
+ req->best_parent_rate, &num, &den);
+
+ return 0;
}
static unsigned long ccu_ddn_recalc_rate(struct clk_hw *hw, unsigned long prate)
@@ -58,7 +61,7 @@ static unsigned long ccu_ddn_recalc_rate(struct clk_hw *hw, unsigned long prate)
num = (val & ddn->num_mask) >> ddn->num_shift;
den = (val & ddn->den_mask) >> ddn->den_shift;
- return ccu_ddn_calc_rate(prate, num, den);
+ return ccu_ddn_calc_rate(prate, num, den, ddn->pre_div);
}
static int ccu_ddn_set_rate(struct clk_hw *hw, unsigned long rate,
@@ -78,6 +81,6 @@ static int ccu_ddn_set_rate(struct clk_hw *hw, unsigned long rate,
const struct clk_ops spacemit_ccu_ddn_ops = {
.recalc_rate = ccu_ddn_recalc_rate,
- .round_rate = ccu_ddn_round_rate,
+ .determine_rate = ccu_ddn_determine_rate,
.set_rate = ccu_ddn_set_rate,
};
diff --git a/drivers/clk/spacemit/ccu_ddn.h b/drivers/clk/spacemit/ccu_ddn.h
index a52fabe77d62..4838414a8e8d 100644
--- a/drivers/clk/spacemit/ccu_ddn.h
+++ b/drivers/clk/spacemit/ccu_ddn.h
@@ -18,13 +18,14 @@ struct ccu_ddn {
unsigned int num_shift;
unsigned int den_mask;
unsigned int den_shift;
+ unsigned int pre_div;
};
#define CCU_DDN_INIT(_name, _parent, _flags) \
CLK_HW_INIT_HW(#_name, &_parent.common.hw, &spacemit_ccu_ddn_ops, _flags)
#define CCU_DDN_DEFINE(_name, _parent, _reg_ctrl, _num_shift, _num_width, \
- _den_shift, _den_width, _flags) \
+ _den_shift, _den_width, _pre_div, _flags) \
static struct ccu_ddn _name = { \
.common = { \
.reg_ctrl = _reg_ctrl, \
@@ -33,7 +34,8 @@ static struct ccu_ddn _name = { \
.num_mask = GENMASK(_num_shift + _num_width - 1, _num_shift), \
.num_shift = _num_shift, \
.den_mask = GENMASK(_den_shift + _den_width - 1, _den_shift), \
- .den_shift = _den_shift, \
+ .den_shift = _den_shift, \
+ .pre_div = _pre_div, \
}
static inline struct ccu_ddn *hw_to_ccu_ddn(struct clk_hw *hw)
diff --git a/drivers/clk/spacemit/ccu_mix.c b/drivers/clk/spacemit/ccu_mix.c
index 9b852aa61f78..7b7990875372 100644
--- a/drivers/clk/spacemit/ccu_mix.c
+++ b/drivers/clk/spacemit/ccu_mix.c
@@ -80,10 +80,12 @@ static int ccu_mix_trigger_fc(struct clk_hw *hw)
MIX_FC_TIMEOUT_US);
}
-static long ccu_factor_round_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long *prate)
+static int ccu_factor_determine_rate(struct clk_hw *hw,
+ struct clk_rate_request *req)
{
- return ccu_factor_recalc_rate(hw, *prate);
+ req->rate = ccu_factor_recalc_rate(hw, req->best_parent_rate);
+
+ return 0;
}
static int ccu_factor_set_rate(struct clk_hw *hw, unsigned long rate,
@@ -198,7 +200,7 @@ const struct clk_ops spacemit_ccu_gate_ops = {
};
const struct clk_ops spacemit_ccu_factor_ops = {
- .round_rate = ccu_factor_round_rate,
+ .determine_rate = ccu_factor_determine_rate,
.recalc_rate = ccu_factor_recalc_rate,
.set_rate = ccu_factor_set_rate,
};
@@ -220,7 +222,7 @@ const struct clk_ops spacemit_ccu_factor_gate_ops = {
.enable = ccu_gate_enable,
.is_enabled = ccu_gate_is_enabled,
- .round_rate = ccu_factor_round_rate,
+ .determine_rate = ccu_factor_determine_rate,
.recalc_rate = ccu_factor_recalc_rate,
.set_rate = ccu_factor_set_rate,
};
diff --git a/drivers/clk/spacemit/ccu_pll.c b/drivers/clk/spacemit/ccu_pll.c
index 45f540073a65..d92f0dae65a4 100644
--- a/drivers/clk/spacemit/ccu_pll.c
+++ b/drivers/clk/spacemit/ccu_pll.c
@@ -125,12 +125,14 @@ static unsigned long ccu_pll_recalc_rate(struct clk_hw *hw,
return entry ? entry->rate : 0;
}
-static long ccu_pll_round_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long *prate)
+static int ccu_pll_determine_rate(struct clk_hw *hw,
+ struct clk_rate_request *req)
{
struct ccu_pll *pll = hw_to_ccu_pll(hw);
- return ccu_pll_lookup_best_rate(pll, rate)->rate;
+ req->rate = ccu_pll_lookup_best_rate(pll, req->rate)->rate;
+
+ return 0;
}
static int ccu_pll_init(struct clk_hw *hw)
@@ -152,6 +154,6 @@ const struct clk_ops spacemit_ccu_pll_ops = {
.disable = ccu_pll_disable,
.set_rate = ccu_pll_set_rate,
.recalc_rate = ccu_pll_recalc_rate,
- .round_rate = ccu_pll_round_rate,
+ .determine_rate = ccu_pll_determine_rate,
.is_enabled = ccu_pll_is_enabled,
};
generated by cgit v1.2.3 (git 2.46.0) at 2025-10-09 02:46:07 +0000