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-rw-r--r--include/dt-bindings/clock/imx6ul-clock.h46
-rw-r--r--include/dt-bindings/clock/r9a06g032-sysctrl.h148
-rw-r--r--include/linux/clk-provider.h26
-rw-r--r--include/linux/clk.h33
-rw-r--r--include/trace/events/clk.h36
5 files changed, 268 insertions, 21 deletions
diff --git a/include/dt-bindings/clock/imx6ul-clock.h b/include/dt-bindings/clock/imx6ul-clock.h
index 9564597cbfac..f8e0476a3a0e 100644
--- a/include/dt-bindings/clock/imx6ul-clock.h
+++ b/include/dt-bindings/clock/imx6ul-clock.h
@@ -235,27 +235,31 @@
#define IMX6UL_CLK_CSI_PODF 222
#define IMX6UL_CLK_PLL3_120M 223
#define IMX6UL_CLK_KPP 224
-#define IMX6UL_CLK_CKO1_SEL 225
-#define IMX6UL_CLK_CKO1_PODF 226
-#define IMX6UL_CLK_CKO1 227
-#define IMX6UL_CLK_CKO2_SEL 228
-#define IMX6UL_CLK_CKO2_PODF 229
-#define IMX6UL_CLK_CKO2 230
-#define IMX6UL_CLK_CKO 231
+#define IMX6ULL_CLK_ESAI_PRED 225
+#define IMX6ULL_CLK_ESAI_PODF 226
+#define IMX6ULL_CLK_ESAI_EXTAL 227
+#define IMX6ULL_CLK_ESAI_MEM 228
+#define IMX6ULL_CLK_ESAI_IPG 229
+#define IMX6ULL_CLK_DCP_CLK 230
+#define IMX6ULL_CLK_EPDC_PRE_SEL 231
+#define IMX6ULL_CLK_EPDC_SEL 232
+#define IMX6ULL_CLK_EPDC_PODF 233
+#define IMX6ULL_CLK_EPDC_ACLK 234
+#define IMX6ULL_CLK_EPDC_PIX 235
+#define IMX6ULL_CLK_ESAI_SEL 236
+#define IMX6UL_CLK_CKO1_SEL 237
+#define IMX6UL_CLK_CKO1_PODF 238
+#define IMX6UL_CLK_CKO1 239
+#define IMX6UL_CLK_CKO2_SEL 240
+#define IMX6UL_CLK_CKO2_PODF 241
+#define IMX6UL_CLK_CKO2 242
+#define IMX6UL_CLK_CKO 243
+#define IMX6UL_CLK_GPIO1 244
+#define IMX6UL_CLK_GPIO2 245
+#define IMX6UL_CLK_GPIO3 246
+#define IMX6UL_CLK_GPIO4 247
+#define IMX6UL_CLK_GPIO5 248
-/* For i.MX6ULL */
-#define IMX6ULL_CLK_ESAI_PRED 232
-#define IMX6ULL_CLK_ESAI_PODF 233
-#define IMX6ULL_CLK_ESAI_EXTAL 234
-#define IMX6ULL_CLK_ESAI_MEM 235
-#define IMX6ULL_CLK_ESAI_IPG 236
-#define IMX6ULL_CLK_DCP_CLK 237
-#define IMX6ULL_CLK_EPDC_PRE_SEL 238
-#define IMX6ULL_CLK_EPDC_SEL 239
-#define IMX6ULL_CLK_EPDC_PODF 240
-#define IMX6ULL_CLK_EPDC_ACLK 241
-#define IMX6ULL_CLK_EPDC_PIX 242
-#define IMX6ULL_CLK_ESAI_SEL 243
-#define IMX6UL_CLK_END 244
+#define IMX6UL_CLK_END 249
#endif /* __DT_BINDINGS_CLOCK_IMX6UL_H */
diff --git a/include/dt-bindings/clock/r9a06g032-sysctrl.h b/include/dt-bindings/clock/r9a06g032-sysctrl.h
new file mode 100644
index 000000000000..90c0f3dc1ba1
--- /dev/null
+++ b/include/dt-bindings/clock/r9a06g032-sysctrl.h
@@ -0,0 +1,148 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * R9A06G032 sysctrl IDs
+ *
+ * Copyright (C) 2018 Renesas Electronics Europe Limited
+ *
+ * Michel Pollet <michel.pollet@bp.renesas.com>, <buserror@gmail.com>
+ */
+
+#ifndef __DT_BINDINGS_R9A06G032_SYSCTRL_H__
+#define __DT_BINDINGS_R9A06G032_SYSCTRL_H__
+
+#define R9A06G032_CLK_PLL_USB 1
+#define R9A06G032_CLK_48 1 /* AKA CLK_PLL_USB */
+#define R9A06G032_MSEBIS_CLK 3 /* AKA CLKOUT_D16 */
+#define R9A06G032_MSEBIM_CLK 3 /* AKA CLKOUT_D16 */
+#define R9A06G032_CLK_DDRPHY_PLLCLK 5 /* AKA CLKOUT_D1OR2 */
+#define R9A06G032_CLK50 6 /* AKA CLKOUT_D20 */
+#define R9A06G032_CLK25 7 /* AKA CLKOUT_D40 */
+#define R9A06G032_CLK125 9 /* AKA CLKOUT_D8 */
+#define R9A06G032_CLK_P5_PG1 17 /* AKA DIV_P5_PG */
+#define R9A06G032_CLK_REF_SYNC 21 /* AKA DIV_REF_SYNC */
+#define R9A06G032_CLK_25_PG4 26
+#define R9A06G032_CLK_25_PG5 27
+#define R9A06G032_CLK_25_PG6 28
+#define R9A06G032_CLK_25_PG7 29
+#define R9A06G032_CLK_25_PG8 30
+#define R9A06G032_CLK_ADC 31
+#define R9A06G032_CLK_ECAT100 32
+#define R9A06G032_CLK_HSR100 33
+#define R9A06G032_CLK_I2C0 34
+#define R9A06G032_CLK_I2C1 35
+#define R9A06G032_CLK_MII_REF 36
+#define R9A06G032_CLK_NAND 37
+#define R9A06G032_CLK_NOUSBP2_PG6 38
+#define R9A06G032_CLK_P1_PG2 39
+#define R9A06G032_CLK_P1_PG3 40
+#define R9A06G032_CLK_P1_PG4 41
+#define R9A06G032_CLK_P4_PG3 42
+#define R9A06G032_CLK_P4_PG4 43
+#define R9A06G032_CLK_P6_PG1 44
+#define R9A06G032_CLK_P6_PG2 45
+#define R9A06G032_CLK_P6_PG3 46
+#define R9A06G032_CLK_P6_PG4 47
+#define R9A06G032_CLK_PCI_USB 48
+#define R9A06G032_CLK_QSPI0 49
+#define R9A06G032_CLK_QSPI1 50
+#define R9A06G032_CLK_RGMII_REF 51
+#define R9A06G032_CLK_RMII_REF 52
+#define R9A06G032_CLK_SDIO0 53
+#define R9A06G032_CLK_SDIO1 54
+#define R9A06G032_CLK_SERCOS100 55
+#define R9A06G032_CLK_SLCD 56
+#define R9A06G032_CLK_SPI0 57
+#define R9A06G032_CLK_SPI1 58
+#define R9A06G032_CLK_SPI2 59
+#define R9A06G032_CLK_SPI3 60
+#define R9A06G032_CLK_SPI4 61
+#define R9A06G032_CLK_SPI5 62
+#define R9A06G032_CLK_SWITCH 63
+#define R9A06G032_HCLK_ECAT125 65
+#define R9A06G032_HCLK_PINCONFIG 66
+#define R9A06G032_HCLK_SERCOS 67
+#define R9A06G032_HCLK_SGPIO2 68
+#define R9A06G032_HCLK_SGPIO3 69
+#define R9A06G032_HCLK_SGPIO4 70
+#define R9A06G032_HCLK_TIMER0 71
+#define R9A06G032_HCLK_TIMER1 72
+#define R9A06G032_HCLK_USBF 73
+#define R9A06G032_HCLK_USBH 74
+#define R9A06G032_HCLK_USBPM 75
+#define R9A06G032_CLK_48_PG_F 76
+#define R9A06G032_CLK_48_PG4 77
+#define R9A06G032_CLK_DDRPHY_PCLK 81 /* AKA CLK_REF_SYNC_D4 */
+#define R9A06G032_CLK_FW 81 /* AKA CLK_REF_SYNC_D4 */
+#define R9A06G032_CLK_CRYPTO 81 /* AKA CLK_REF_SYNC_D4 */
+#define R9A06G032_CLK_A7MP 84 /* AKA DIV_CA7 */
+#define R9A06G032_HCLK_CAN0 85
+#define R9A06G032_HCLK_CAN1 86
+#define R9A06G032_HCLK_DELTASIGMA 87
+#define R9A06G032_HCLK_PWMPTO 88
+#define R9A06G032_HCLK_RSV 89
+#define R9A06G032_HCLK_SGPIO0 90
+#define R9A06G032_HCLK_SGPIO1 91
+#define R9A06G032_RTOS_MDC 92
+#define R9A06G032_CLK_CM3 93
+#define R9A06G032_CLK_DDRC 94
+#define R9A06G032_CLK_ECAT25 95
+#define R9A06G032_CLK_HSR50 96
+#define R9A06G032_CLK_HW_RTOS 97
+#define R9A06G032_CLK_SERCOS50 98
+#define R9A06G032_HCLK_ADC 99
+#define R9A06G032_HCLK_CM3 100
+#define R9A06G032_HCLK_CRYPTO_EIP150 101
+#define R9A06G032_HCLK_CRYPTO_EIP93 102
+#define R9A06G032_HCLK_DDRC 103
+#define R9A06G032_HCLK_DMA0 104
+#define R9A06G032_HCLK_DMA1 105
+#define R9A06G032_HCLK_GMAC0 106
+#define R9A06G032_HCLK_GMAC1 107
+#define R9A06G032_HCLK_GPIO0 108
+#define R9A06G032_HCLK_GPIO1 109
+#define R9A06G032_HCLK_GPIO2 110
+#define R9A06G032_HCLK_HSR 111
+#define R9A06G032_HCLK_I2C0 112
+#define R9A06G032_HCLK_I2C1 113
+#define R9A06G032_HCLK_LCD 114
+#define R9A06G032_HCLK_MSEBI_M 115
+#define R9A06G032_HCLK_MSEBI_S 116
+#define R9A06G032_HCLK_NAND 117
+#define R9A06G032_HCLK_PG_I 118
+#define R9A06G032_HCLK_PG19 119
+#define R9A06G032_HCLK_PG20 120
+#define R9A06G032_HCLK_PG3 121
+#define R9A06G032_HCLK_PG4 122
+#define R9A06G032_HCLK_QSPI0 123
+#define R9A06G032_HCLK_QSPI1 124
+#define R9A06G032_HCLK_ROM 125
+#define R9A06G032_HCLK_RTC 126
+#define R9A06G032_HCLK_SDIO0 127
+#define R9A06G032_HCLK_SDIO1 128
+#define R9A06G032_HCLK_SEMAP 129
+#define R9A06G032_HCLK_SPI0 130
+#define R9A06G032_HCLK_SPI1 131
+#define R9A06G032_HCLK_SPI2 132
+#define R9A06G032_HCLK_SPI3 133
+#define R9A06G032_HCLK_SPI4 134
+#define R9A06G032_HCLK_SPI5 135
+#define R9A06G032_HCLK_SWITCH 136
+#define R9A06G032_HCLK_SWITCH_RG 137
+#define R9A06G032_HCLK_UART0 138
+#define R9A06G032_HCLK_UART1 139
+#define R9A06G032_HCLK_UART2 140
+#define R9A06G032_HCLK_UART3 141
+#define R9A06G032_HCLK_UART4 142
+#define R9A06G032_HCLK_UART5 143
+#define R9A06G032_HCLK_UART6 144
+#define R9A06G032_HCLK_UART7 145
+#define R9A06G032_CLK_UART0 146
+#define R9A06G032_CLK_UART1 147
+#define R9A06G032_CLK_UART2 148
+#define R9A06G032_CLK_UART3 149
+#define R9A06G032_CLK_UART4 150
+#define R9A06G032_CLK_UART5 151
+#define R9A06G032_CLK_UART6 152
+#define R9A06G032_CLK_UART7 153
+
+#endif /* __DT_BINDINGS_R9A06G032_SYSCTRL_H__ */
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index b7cfa037e593..08b1aa70a38d 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -38,6 +38,8 @@
#define CLK_IS_CRITICAL BIT(11) /* do not gate, ever */
/* parents need enable during gate/ungate, set rate and re-parent */
#define CLK_OPS_PARENT_ENABLE BIT(12)
+/* duty cycle call may be forwarded to the parent clock */
+#define CLK_DUTY_CYCLE_PARENT BIT(13)
struct clk;
struct clk_hw;
@@ -67,6 +69,17 @@ struct clk_rate_request {
};
/**
+ * struct clk_duty - Struture encoding the duty cycle ratio of a clock
+ *
+ * @num: Numerator of the duty cycle ratio
+ * @den: Denominator of the duty cycle ratio
+ */
+struct clk_duty {
+ unsigned int num;
+ unsigned int den;
+};
+
+/**
* struct clk_ops - Callback operations for hardware clocks; these are to
* be provided by the clock implementation, and will be called by drivers
* through the clk_* api.
@@ -169,6 +182,15 @@ struct clk_rate_request {
* by the second argument. Valid values for degrees are
* 0-359. Return 0 on success, otherwise -EERROR.
*
+ * @get_duty_cycle: Queries the hardware to get the current duty cycle ratio
+ * of a clock. Returned values denominator cannot be 0 and must be
+ * superior or equal to the numerator.
+ *
+ * @set_duty_cycle: Apply the duty cycle ratio to this clock signal specified by
+ * the numerator (2nd argurment) and denominator (3rd argument).
+ * Argument must be a valid ratio (denominator > 0
+ * and >= numerator) Return 0 on success, otherwise -EERROR.
+ *
* @init: Perform platform-specific initialization magic.
* This is not not used by any of the basic clock types.
* Please consider other ways of solving initialization problems
@@ -218,6 +240,10 @@ struct clk_ops {
unsigned long parent_accuracy);
int (*get_phase)(struct clk_hw *hw);
int (*set_phase)(struct clk_hw *hw, int degrees);
+ int (*get_duty_cycle)(struct clk_hw *hw,
+ struct clk_duty *duty);
+ int (*set_duty_cycle)(struct clk_hw *hw,
+ struct clk_duty *duty);
void (*init)(struct clk_hw *hw);
void (*debug_init)(struct clk_hw *hw, struct dentry *dentry);
};
diff --git a/include/linux/clk.h b/include/linux/clk.h
index 0dbd0885b2c2..4f750c481b82 100644
--- a/include/linux/clk.h
+++ b/include/linux/clk.h
@@ -142,6 +142,27 @@ int clk_set_phase(struct clk *clk, int degrees);
int clk_get_phase(struct clk *clk);
/**
+ * clk_set_duty_cycle - adjust the duty cycle ratio of a clock signal
+ * @clk: clock signal source
+ * @num: numerator of the duty cycle ratio to be applied
+ * @den: denominator of the duty cycle ratio to be applied
+ *
+ * Adjust the duty cycle of a clock signal by the specified ratio. Returns 0 on
+ * success, -EERROR otherwise.
+ */
+int clk_set_duty_cycle(struct clk *clk, unsigned int num, unsigned int den);
+
+/**
+ * clk_get_duty_cycle - return the duty cycle ratio of a clock signal
+ * @clk: clock signal source
+ * @scale: scaling factor to be applied to represent the ratio as an integer
+ *
+ * Returns the duty cycle ratio multiplied by the scale provided, otherwise
+ * returns -EERROR.
+ */
+int clk_get_scaled_duty_cycle(struct clk *clk, unsigned int scale);
+
+/**
* clk_is_match - check if two clk's point to the same hardware clock
* @p: clk compared against q
* @q: clk compared against p
@@ -183,6 +204,18 @@ static inline long clk_get_phase(struct clk *clk)
return -ENOTSUPP;
}
+static inline int clk_set_duty_cycle(struct clk *clk, unsigned int num,
+ unsigned int den)
+{
+ return -ENOTSUPP;
+}
+
+static inline unsigned int clk_get_scaled_duty_cycle(struct clk *clk,
+ unsigned int scale)
+{
+ return 0;
+}
+
static inline bool clk_is_match(const struct clk *p, const struct clk *q)
{
return p == q;
diff --git a/include/trace/events/clk.h b/include/trace/events/clk.h
index 2cd449328aee..9004ffff7f32 100644
--- a/include/trace/events/clk.h
+++ b/include/trace/events/clk.h
@@ -192,6 +192,42 @@ DEFINE_EVENT(clk_phase, clk_set_phase_complete,
TP_ARGS(core, phase)
);
+DECLARE_EVENT_CLASS(clk_duty_cycle,
+
+ TP_PROTO(struct clk_core *core, struct clk_duty *duty),
+
+ TP_ARGS(core, duty),
+
+ TP_STRUCT__entry(
+ __string( name, core->name )
+ __field( unsigned int, num )
+ __field( unsigned int, den )
+ ),
+
+ TP_fast_assign(
+ __assign_str(name, core->name);
+ __entry->num = duty->num;
+ __entry->den = duty->den;
+ ),
+
+ TP_printk("%s %u/%u", __get_str(name), (unsigned int)__entry->num,
+ (unsigned int)__entry->den)
+);
+
+DEFINE_EVENT(clk_duty_cycle, clk_set_duty_cycle,
+
+ TP_PROTO(struct clk_core *core, struct clk_duty *duty),
+
+ TP_ARGS(core, duty)
+);
+
+DEFINE_EVENT(clk_duty_cycle, clk_set_duty_cycle_complete,
+
+ TP_PROTO(struct clk_core *core, struct clk_duty *duty),
+
+ TP_ARGS(core, duty)
+);
+
#endif /* _TRACE_CLK_H */
/* This part must be outside protection */
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-09 02:57:23 +0000