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-rw-r--r--arch/arm/mach-omap2/clock.h357
1 files changed, 166 insertions, 191 deletions
diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h
index cfba1ffe5cc..9917f793c3b 100644
--- a/arch/arm/mach-omap2/clock.h
+++ b/arch/arm/mach-omap2/clock.h
@@ -20,6 +20,7 @@
#include <linux/list.h>
#include <linux/clkdev.h>
+#include <linux/clk-provider.h>
struct omap_clk {
u16 cpu;
@@ -52,43 +53,84 @@ struct omap_clk {
#define CK_34XX (CK_3430ES1 | CK_3430ES2PLUS)
#define CK_3XXX (CK_34XX | CK_AM35XX | CK_36XX)
-struct module;
-struct clk;
struct clockdomain;
-
-/* Temporary, needed during the common clock framework conversion */
-#define __clk_get_name(clk) (clk->name)
-#define __clk_get_parent(clk) (clk->parent)
-#define __clk_get_rate(clk) (clk->rate)
-
-/**
- * struct clkops - some clock function pointers
- * @enable: fn ptr that enables the current clock in hardware
- * @disable: fn ptr that enables the current clock in hardware
- * @find_idlest: function returning the IDLEST register for the clock's IP blk
- * @find_companion: function returning the "companion" clk reg for the clock
- * @allow_idle: fn ptr that enables autoidle for the current clock in hardware
- * @deny_idle: fn ptr that disables autoidle for the current clock in hardware
- *
- * A "companion" clk is an accompanying clock to the one being queried
- * that must be enabled for the IP module connected to the clock to
- * become accessible by the hardware. Neither @find_idlest nor
- * @find_companion should be needed; that information is IP
- * block-specific; the hwmod code has been created to handle this, but
- * until hwmod data is ready and drivers have been converted to use PM
- * runtime calls in place of clk_enable()/clk_disable(), @find_idlest and
- * @find_companion must, unfortunately, remain.
- */
-struct clkops {
- int (*enable)(struct clk *);
- void (*disable)(struct clk *);
- void (*find_idlest)(struct clk *, void __iomem **,
- u8 *, u8 *);
- void (*find_companion)(struct clk *, void __iomem **,
- u8 *);
- void (*allow_idle)(struct clk *);
- void (*deny_idle)(struct clk *);
-};
+#define to_clk_hw_omap(_hw) container_of(_hw, struct clk_hw_omap, hw)
+
+#define DEFINE_STRUCT_CLK(_name, _parent_array_name, _clkops_name) \
+ static struct clk _name = { \
+ .name = #_name, \
+ .hw = &_name##_hw.hw, \
+ .parent_names = _parent_array_name, \
+ .num_parents = ARRAY_SIZE(_parent_array_name), \
+ .ops = &_clkops_name, \
+ };
+
+#define DEFINE_STRUCT_CLK_HW_OMAP(_name, _clkdm_name) \
+ static struct clk_hw_omap _name##_hw = { \
+ .hw = { \
+ .clk = &_name, \
+ }, \
+ .clkdm_name = _clkdm_name, \
+ };
+
+#define DEFINE_CLK_OMAP_MUX(_name, _clkdm_name, _clksel, \
+ _clksel_reg, _clksel_mask, \
+ _parent_names, _ops) \
+ static struct clk _name; \
+ static struct clk_hw_omap _name##_hw = { \
+ .hw = { \
+ .clk = &_name, \
+ }, \
+ .clksel = _clksel, \
+ .clksel_reg = _clksel_reg, \
+ .clksel_mask = _clksel_mask, \
+ .clkdm_name = _clkdm_name, \
+ }; \
+ DEFINE_STRUCT_CLK(_name, _parent_names, _ops);
+
+#define DEFINE_CLK_OMAP_MUX_GATE(_name, _clkdm_name, _clksel, \
+ _clksel_reg, _clksel_mask, \
+ _enable_reg, _enable_bit, \
+ _hwops, _parent_names, _ops) \
+ static struct clk _name; \
+ static struct clk_hw_omap _name##_hw = { \
+ .hw = { \
+ .clk = &_name, \
+ }, \
+ .ops = _hwops, \
+ .enable_reg = _enable_reg, \
+ .enable_bit = _enable_bit, \
+ .clksel = _clksel, \
+ .clksel_reg = _clksel_reg, \
+ .clksel_mask = _clksel_mask, \
+ .clkdm_name = _clkdm_name, \
+ }; \
+ DEFINE_STRUCT_CLK(_name, _parent_names, _ops);
+
+#define DEFINE_CLK_OMAP_HSDIVIDER(_name, _parent_name, \
+ _parent_ptr, _flags, \
+ _clksel_reg, _clksel_mask) \
+ static const struct clksel _name##_div[] = { \
+ { \
+ .parent = _parent_ptr, \
+ .rates = div31_1to31_rates \
+ }, \
+ { .parent = NULL }, \
+ }; \
+ static struct clk _name; \
+ static const char *_name##_parent_names[] = { \
+ _parent_name, \
+ }; \
+ static struct clk_hw_omap _name##_hw = { \
+ .hw = { \
+ .clk = &_name, \
+ }, \
+ .clksel = _name##_div, \
+ .clksel_reg = _clksel_reg, \
+ .clksel_mask = _clksel_mask, \
+ .ops = &clkhwops_omap4_dpllmx, \
+ }; \
+ DEFINE_STRUCT_CLK(_name, _name##_parent_names, omap_hsdivider_ops);
/* struct clksel_rate.flags possibilities */
#define RATE_IN_242X (1 << 0)
@@ -229,22 +271,10 @@ struct dpll_data {
#define CLOCK_CLKOUTX2 (1 << 5)
/**
- * struct clk - OMAP struct clk
+ * struct clk_hw_omap - OMAP struct clk
* @node: list_head connecting this clock into the full clock list
- * @ops: struct clkops * for this clock
- * @name: the name of the clock in the hardware (used in hwmod data and debug)
- * @parent: pointer to this clock's parent struct clk
- * @children: list_head connecting to the child clks' @sibling list_heads
- * @sibling: list_head connecting this clk to its parent clk's @children
- * @rate: current clock rate
* @enable_reg: register to write to enable the clock (see @enable_bit)
- * @recalc: fn ptr that returns the clock's current rate
- * @set_rate: fn ptr that can change the clock's current rate
- * @round_rate: fn ptr that can round the clock's current rate
- * @init: fn ptr to do clock-specific initialization
* @enable_bit: bitshift to write to enable/disable the clock (see @enable_reg)
- * @usecount: number of users that have requested this clock to be enabled
- * @fixed_div: when > 0, this clock's rate is its parent's rate / @fixed_div
* @flags: see "struct clk.flags possibilities" above
* @clksel_reg: for clksel clks, register va containing src/divisor select
* @clksel_mask: bitmask in @clksel_reg for the src/divisor selector
@@ -258,39 +288,17 @@ struct dpll_data {
* XXX @rate_offset, @src_offset should probably be removed and OMAP1
* clock code converted to use clksel.
*
- * XXX @usecount is poorly named. It should be "enable_count" or
- * something similar. "users" in the description refers to kernel
- * code (core code or drivers) that have called clk_enable() and not
- * yet called clk_disable(); the usecount of parent clocks is also
- * incremented by the clock code when clk_enable() is called on child
- * clocks and decremented by the clock code when clk_disable() is
- * called on child clocks.
- *
- * XXX @clkdm, @usecount, @children, @sibling should be marked for
- * internal use only.
- *
- * @children and @sibling are used to optimize parent-to-child clock
- * tree traversals. (child-to-parent traversals use @parent.)
- *
- * XXX The notion of the clock's current rate probably needs to be
- * separated from the clock's target rate.
*/
-struct clk {
+
+struct clk_hw_omap_ops;
+
+struct clk_hw_omap {
+ struct clk_hw hw;
struct list_head node;
- const struct clkops *ops;
- const char *name;
- struct clk *parent;
- struct list_head children;
- struct list_head sibling; /* node for children */
- unsigned long rate;
+ unsigned long fixed_rate;
+ u8 fixed_div;
void __iomem *enable_reg;
- unsigned long (*recalc)(struct clk *);
- int (*set_rate)(struct clk *, unsigned long);
- long (*round_rate)(struct clk *, unsigned long);
- void (*init)(struct clk *);
u8 enable_bit;
- s8 usecount;
- u8 fixed_div;
u8 flags;
void __iomem *clksel_reg;
u32 clksel_mask;
@@ -298,42 +306,22 @@ struct clk {
struct dpll_data *dpll_data;
const char *clkdm_name;
struct clockdomain *clkdm;
-#if defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS)
- struct dentry *dent; /* For visible tree hierarchy */
-#endif
+ const struct clk_hw_omap_ops *ops;
};
-struct clk_functions {
- int (*clk_enable)(struct clk *clk);
- void (*clk_disable)(struct clk *clk);
- long (*clk_round_rate)(struct clk *clk, unsigned long rate);
- int (*clk_set_rate)(struct clk *clk, unsigned long rate);
- int (*clk_set_parent)(struct clk *clk, struct clk *parent);
- void (*clk_allow_idle)(struct clk *clk);
- void (*clk_deny_idle)(struct clk *clk);
- void (*clk_disable_unused)(struct clk *clk);
+struct clk_hw_omap_ops {
+ void (*find_idlest)(struct clk_hw_omap *oclk,
+ void __iomem **idlest_reg,
+ u8 *idlest_bit, u8 *idlest_val);
+ void (*find_companion)(struct clk_hw_omap *oclk,
+ void __iomem **other_reg,
+ u8 *other_bit);
+ void (*allow_idle)(struct clk_hw_omap *oclk);
+ void (*deny_idle)(struct clk_hw_omap *oclk);
};
-extern int mpurate;
-
-extern int clk_init(struct clk_functions *custom_clocks);
-extern void clk_preinit(struct clk *clk);
-extern int clk_register(struct clk *clk);
-extern void clk_reparent(struct clk *child, struct clk *parent);
-extern void clk_unregister(struct clk *clk);
-extern void propagate_rate(struct clk *clk);
-extern void recalculate_root_clocks(void);
-extern unsigned long followparent_recalc(struct clk *clk);
-extern void clk_enable_init_clocks(void);
-unsigned long omap_fixed_divisor_recalc(struct clk *clk);
-extern struct clk *omap_clk_get_by_name(const char *name);
-extern int omap_clk_enable_autoidle_all(void);
-extern int omap_clk_disable_autoidle_all(void);
-
-extern const struct clkops clkops_null;
-
-extern struct clk dummy_ck;
-
+unsigned long omap_fixed_divisor_recalc(struct clk_hw *hw,
+ unsigned long parent_rate);
/* CM_CLKSEL2_PLL.CORE_CLK_SRC bits (2XXX) */
#define CORE_CLK_SRC_32K 0x0
@@ -364,84 +352,62 @@ extern struct clk dummy_ck;
/* DPLL Type and DCO Selection Flags */
#define DPLL_J_TYPE 0x1
-int omap2_clk_enable(struct clk *clk);
-void omap2_clk_disable(struct clk *clk);
-long omap2_clk_round_rate(struct clk *clk, unsigned long rate);
-int omap2_clk_set_rate(struct clk *clk, unsigned long rate);
-int omap2_clk_set_parent(struct clk *clk, struct clk *new_parent);
-long omap2_dpll_round_rate(struct clk *clk, unsigned long target_rate);
-unsigned long omap3_dpll_recalc(struct clk *clk);
-unsigned long omap3_clkoutx2_recalc(struct clk *clk);
-void omap3_dpll_allow_idle(struct clk *clk);
-void omap3_dpll_deny_idle(struct clk *clk);
-u32 omap3_dpll_autoidle_read(struct clk *clk);
-int omap3_noncore_dpll_set_rate(struct clk *clk, unsigned long rate);
-int omap3_noncore_dpll_enable(struct clk *clk);
-void omap3_noncore_dpll_disable(struct clk *clk);
-int omap4_dpllmx_gatectrl_read(struct clk *clk);
-void omap4_dpllmx_allow_gatectrl(struct clk *clk);
-void omap4_dpllmx_deny_gatectrl(struct clk *clk);
-long omap4_dpll_regm4xen_round_rate(struct clk *clk, unsigned long target_rate);
-unsigned long omap4_dpll_regm4xen_recalc(struct clk *clk);
-
-#ifdef CONFIG_OMAP_RESET_CLOCKS
-void omap2_clk_disable_unused(struct clk *clk);
-#else
-#define omap2_clk_disable_unused NULL
-#endif
-
-void omap2_init_clk_clkdm(struct clk *clk);
+long omap2_dpll_round_rate(struct clk_hw *hw, unsigned long target_rate,
+ unsigned long *parent_rate);
+unsigned long omap3_dpll_recalc(struct clk_hw *hw, unsigned long parent_rate);
+int omap3_noncore_dpll_enable(struct clk_hw *hw);
+void omap3_noncore_dpll_disable(struct clk_hw *hw);
+int omap3_noncore_dpll_set_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long parent_rate);
+u32 omap3_dpll_autoidle_read(struct clk_hw_omap *clk);
+void omap3_dpll_allow_idle(struct clk_hw_omap *clk);
+void omap3_dpll_deny_idle(struct clk_hw_omap *clk);
+unsigned long omap3_clkoutx2_recalc(struct clk_hw *hw,
+ unsigned long parent_rate);
+int omap4_dpllmx_gatectrl_read(struct clk_hw_omap *clk);
+void omap4_dpllmx_allow_gatectrl(struct clk_hw_omap *clk);
+void omap4_dpllmx_deny_gatectrl(struct clk_hw_omap *clk);
+unsigned long omap4_dpll_regm4xen_recalc(struct clk_hw *hw,
+ unsigned long parent_rate);
+long omap4_dpll_regm4xen_round_rate(struct clk_hw *hw,
+ unsigned long target_rate,
+ unsigned long *parent_rate);
+
+void omap2_init_clk_clkdm(struct clk_hw *clk);
void __init omap2_clk_disable_clkdm_control(void);
/* clkt_clksel.c public functions */
-u32 omap2_clksel_round_rate_div(struct clk *clk, unsigned long target_rate,
+u32 omap2_clksel_round_rate_div(struct clk_hw_omap *clk,
+ unsigned long target_rate,
u32 *new_div);
-void omap2_init_clksel_parent(struct clk *clk);
-unsigned long omap2_clksel_recalc(struct clk *clk);
-long omap2_clksel_round_rate(struct clk *clk, unsigned long target_rate);
-int omap2_clksel_set_rate(struct clk *clk, unsigned long rate);
-int omap2_clksel_set_parent(struct clk *clk, struct clk *new_parent);
+u8 omap2_clksel_find_parent_index(struct clk_hw *hw);
+unsigned long omap2_clksel_recalc(struct clk_hw *hw, unsigned long parent_rate);
+long omap2_clksel_round_rate(struct clk_hw *hw, unsigned long target_rate,
+ unsigned long *parent_rate);
+int omap2_clksel_set_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long parent_rate);
+int omap2_clksel_set_parent(struct clk_hw *hw, u8 field_val);
/* clkt_iclk.c public functions */
-extern void omap2_clkt_iclk_allow_idle(struct clk *clk);
-extern void omap2_clkt_iclk_deny_idle(struct clk *clk);
-
-u32 omap2_get_dpll_rate(struct clk *clk);
-void omap2_init_dpll_parent(struct clk *clk);
-
-int omap2_wait_clock_ready(void __iomem *reg, u32 cval, const char *name);
-
+extern void omap2_clkt_iclk_allow_idle(struct clk_hw_omap *clk);
+extern void omap2_clkt_iclk_deny_idle(struct clk_hw_omap *clk);
-#ifdef CONFIG_ARCH_OMAP2
-void omap2xxx_clk_prepare_for_reboot(void);
-#else
-static inline void omap2xxx_clk_prepare_for_reboot(void)
-{
-}
-#endif
-
-#ifdef CONFIG_ARCH_OMAP3
-void omap3_clk_prepare_for_reboot(void);
-#else
-static inline void omap3_clk_prepare_for_reboot(void)
-{
-}
-#endif
-
-#ifdef CONFIG_ARCH_OMAP4
-void omap4_clk_prepare_for_reboot(void);
-#else
-static inline void omap4_clk_prepare_for_reboot(void)
-{
-}
-#endif
+u8 omap2_init_dpll_parent(struct clk_hw *hw);
+unsigned long omap2_get_dpll_rate(struct clk_hw_omap *clk);
-int omap2_dflt_clk_enable(struct clk *clk);
-void omap2_dflt_clk_disable(struct clk *clk);
-void omap2_clk_dflt_find_companion(struct clk *clk, void __iomem **other_reg,
+int omap2_dflt_clk_enable(struct clk_hw *hw);
+void omap2_dflt_clk_disable(struct clk_hw *hw);
+int omap2_dflt_clk_is_enabled(struct clk_hw *hw);
+void omap2_clk_dflt_find_companion(struct clk_hw_omap *clk,
+ void __iomem **other_reg,
u8 *other_bit);
-void omap2_clk_dflt_find_idlest(struct clk *clk, void __iomem **idlest_reg,
+void omap2_clk_dflt_find_idlest(struct clk_hw_omap *clk,
+ void __iomem **idlest_reg,
u8 *idlest_bit, u8 *idlest_val);
+void omap2_init_clk_hw_omap_clocks(struct clk *clk);
+int omap2_clk_enable_autoidle_all(void);
+int omap2_clk_disable_autoidle_all(void);
+void omap2_clk_enable_init_clocks(const char **clk_names, u8 num_clocks);
int omap2_clk_switch_mpurate_at_boot(const char *mpurate_ck_name);
void omap2_clk_print_new_rates(const char *hfclkin_ck_name,
const char *core_ck_name,
@@ -454,34 +420,43 @@ extern const struct clkops clkops_dummy;
extern const struct clkops clkops_omap2_dflt;
extern struct clk_functions omap2_clk_functions;
-extern struct clk *vclk, *sclk;
extern const struct clksel_rate gpt_32k_rates[];
extern const struct clksel_rate gpt_sys_rates[];
extern const struct clksel_rate gfx_l3_rates[];
extern const struct clksel_rate dsp_ick_rates[];
+extern struct clk dummy_ck;
-extern const struct clkops clkops_omap2_iclk_dflt_wait;
-extern const struct clkops clkops_omap2_iclk_dflt;
-extern const struct clkops clkops_omap2_iclk_idle_only;
-extern const struct clkops clkops_omap2_mdmclk_dflt_wait;
-extern const struct clkops clkops_omap2xxx_dpll_ops;
-extern const struct clkops clkops_omap3_noncore_dpll_ops;
-extern const struct clkops clkops_omap3_core_dpll_ops;
-extern const struct clkops clkops_omap4_dpllmx_ops;
+extern const struct clk_hw_omap_ops clkhwops_omap3_dpll;
+extern const struct clk_hw_omap_ops clkhwops_iclk_wait;
+extern const struct clk_hw_omap_ops clkhwops_wait;
+extern const struct clk_hw_omap_ops clkhwops_omap4_dpllmx;
+extern const struct clk_hw_omap_ops clkhwops_iclk;
+extern const struct clk_hw_omap_ops clkhwops_omap3430es2_ssi_wait;
+extern const struct clk_hw_omap_ops clkhwops_omap3430es2_iclk_ssi_wait;
+extern const struct clk_hw_omap_ops clkhwops_omap3430es2_dss_usbhost_wait;
+extern const struct clk_hw_omap_ops clkhwops_omap3430es2_iclk_dss_usbhost_wait;
+extern const struct clk_hw_omap_ops clkhwops_omap3430es2_iclk_hsotgusb_wait;
+extern const struct clk_hw_omap_ops clkhwops_omap3430es2_hsotgusb_wait;
+extern const struct clk_hw_omap_ops clkhwops_am35xx_ipss_module_wait;
+extern const struct clk_hw_omap_ops clkhwops_am35xx_ipss_wait;
+extern const struct clk_hw_omap_ops clkhwops_apll54;
+extern const struct clk_hw_omap_ops clkhwops_apll96;
+extern const struct clk_hw_omap_ops clkhwops_omap2xxx_dpll;
+extern const struct clk_hw_omap_ops clkhwops_omap2430_i2chs_wait;
/* clksel_rate blocks shared between OMAP44xx and AM33xx */
extern const struct clksel_rate div_1_0_rates[];
+extern const struct clksel_rate div3_1to4_rates[];
extern const struct clksel_rate div_1_1_rates[];
extern const struct clksel_rate div_1_2_rates[];
extern const struct clksel_rate div_1_3_rates[];
extern const struct clksel_rate div_1_4_rates[];
extern const struct clksel_rate div31_1to31_rates[];
-/* clocks shared between various OMAP SoCs */
-extern struct clk virt_19200000_ck;
-extern struct clk virt_26000000_ck;
-
extern int am33xx_clk_init(void);
+extern int omap2_clkops_enable_clkdm(struct clk_hw *hw);
+extern void omap2_clkops_disable_clkdm(struct clk_hw *hw);
+
#endif
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-28 12:37:22 +0000