#include <linux/kernel.h>
#include <linux/errno.h>
-#ifdef CONFIG_COMMON_CLK
#include <linux/clk-provider.h>
-#else
-#include <linux/clk.h>
-#endif
#include <linux/io.h>
#include <linux/bug.h>
* the element associated with the supplied parent clock address.
* Returns a pointer to the struct clksel on success or NULL on error.
*/
-#ifdef CONFIG_COMMON_CLK
static const struct clksel *_get_clksel_by_parent(struct clk_hw_omap *clk,
-#else
-static const struct clksel *_get_clksel_by_parent(struct clk *clk,
-#endif
struct clk *src_clk)
{
const struct clksel *clks;
if (!clks->parent) {
/* This indicates a data problem */
WARN(1, "clock: %s: could not find parent clock %s in clksel array\n",
-#ifdef CONFIG_COMMON_CLK
__clk_get_name(clk->hw.clk), __clk_get_name(src_clk));
-#else
- __clk_get_name(clk), __clk_get_name(src_clk));
-#endif
return NULL;
}
return clks;
}
-/**
- * _get_div_and_fieldval() - find the new clksel divisor and field value to use
- * @src_clk: planned new parent struct clk *
- * @clk: struct clk * that is being reparented
- * @field_val: pointer to a u32 to contain the register data for the divisor
- *
- * Given an intended new parent struct clk * @src_clk, and the struct
- * clk * @clk to the clock that is being reparented, find the
- * appropriate rate divisor for the new clock (returned as the return
- * value), and the corresponding register bitfield data to program to
- * reach that divisor (returned in the u32 pointed to by @field_val).
- * Returns 0 on error, or returns the newly-selected divisor upon
- * success (in this latter case, the corresponding register bitfield
- * value is passed back in the variable pointed to by @field_val)
- */
-#ifndef CONFIG_COMMON_CLK
-static u8 _get_div_and_fieldval(struct clk *src_clk, struct clk *clk,
- u32 *field_val)
-{
- const struct clksel *clks;
- const struct clksel_rate *clkr, *max_clkr = NULL;
- u8 max_div = 0;
-
- clks = _get_clksel_by_parent(clk, src_clk);
- if (!clks)
- return 0;
-
- /*
- * Find the highest divisor (e.g., the one resulting in the
- * lowest rate) to use as the default. This should avoid
- * clock rates that are too high for the device. XXX A better
- * solution here would be to try to determine if there is a
- * divisor matching the original clock rate before the parent
- * switch, and if it cannot be found, to fall back to the
- * highest divisor.
- */
- for (clkr = clks->rates; clkr->div; clkr++) {
- if (!(clkr->flags & cpu_mask))
- continue;
-
- if (clkr->div > max_div) {
- max_div = clkr->div;
- max_clkr = clkr;
- }
- }
-
- if (max_div == 0) {
- /* This indicates an error in the clksel data */
- WARN(1, "clock: %s: could not find divisor for parent %s\n",
- __clk_get_name(clk),
- __clk_get_name(__clk_get_parent(src_clk)));
- return 0;
- }
-
- *field_val = max_clkr->val;
-
- return max_div;
-}
-#endif
-
/**
* _write_clksel_reg() - program a clock's clksel register in hardware
* @clk: struct clk * to program
* take into account any time the hardware might take to switch the
* clock source.
*/
-#ifdef CONFIG_COMMON_CLK
static void _write_clksel_reg(struct clk_hw_omap *clk, u32 field_val)
-#else
-static void _write_clksel_reg(struct clk *clk, u32 field_val)
-#endif
{
u32 v;
* before calling. Returns 0 on error or returns the actual integer divisor
* upon success.
*/
-#ifdef CONFIG_COMMON_CLK
static u32 _clksel_to_divisor(struct clk_hw_omap *clk, u32 field_val)
-#else
-static u32 _clksel_to_divisor(struct clk *clk, u32 field_val)
-#endif
{
const struct clksel *clks;
const struct clksel_rate *clkr;
struct clk *parent;
-#ifdef CONFIG_COMMON_CLK
parent = __clk_get_parent(clk->hw.clk);
-#else
- parent = __clk_get_parent(clk);
-#endif
clks = _get_clksel_by_parent(clk, parent);
if (!clks)
if (!clkr->div) {
/* This indicates a data error */
WARN(1, "clock: %s: could not find fieldval %d for parent %s\n",
-#ifdef CONFIG_COMMON_CLK
__clk_get_name(clk->hw.clk), field_val,
__clk_get_name(parent));
-#else
- __clk_get_name(clk), field_val, __clk_get_name(parent));
-#endif
return 0;
}
* register field value _before_ left-shifting (i.e., LSB is at bit
* 0); or returns 0xFFFFFFFF (~0) upon error.
*/
-#ifdef CONFIG_COMMON_CLK
static u32 _divisor_to_clksel(struct clk_hw_omap *clk, u32 div)
-#else
-static u32 _divisor_to_clksel(struct clk *clk, u32 div)
-#endif
{
const struct clksel *clks;
const struct clksel_rate *clkr;
/* should never happen */
WARN_ON(div == 0);
-#ifdef CONFIG_COMMON_CLK
parent = __clk_get_parent(clk->hw.clk);
-#else
- parent = __clk_get_parent(clk);
-#endif
clks = _get_clksel_by_parent(clk, parent);
if (!clks)
return ~0;
if (!clkr->div) {
pr_err("clock: %s: could not find divisor %d for parent %s\n",
-#ifdef CONFIG_COMMON_CLK
__clk_get_name(clk->hw.clk), div,
__clk_get_name(parent));
-#else
- __clk_get_name(clk), div, __clk_get_name(parent));
-#endif
return ~0;
}
* into the hardware, convert it into the actual divisor value, and
* return it; or return 0 on error.
*/
-#ifdef CONFIG_COMMON_CLK
static u32 _read_divisor(struct clk_hw_omap *clk)
-#else
-static u32 _read_divisor(struct clk *clk)
-#endif
{
u32 v;
*
* Returns the rounded clock rate or returns 0xffffffff on error.
*/
-#ifdef CONFIG_COMMON_CLK
u32 omap2_clksel_round_rate_div(struct clk_hw_omap *clk,
unsigned long target_rate,
-#else
-u32 omap2_clksel_round_rate_div(struct clk *clk, unsigned long target_rate,
-#endif
u32 *new_div)
{
unsigned long test_rate;
unsigned long parent_rate;
const char *clk_name;
-#ifdef CONFIG_COMMON_CLK
parent = __clk_get_parent(clk->hw.clk);
clk_name = __clk_get_name(clk->hw.clk);
-#else
- parent = __clk_get_parent(clk);
- clk_name = __clk_get_name(clk);
-#endif
parent_rate = __clk_get_rate(parent);
if (!clk->clksel || !clk->clksel_mask)
* (i.e., those used in struct clk field function pointers, etc.)
*/
-#ifdef CONFIG_COMMON_CLK
/**
* omap2_clksel_find_parent_index() - return the array index of the current
* hardware parent of @hw
return ret;
}
-#else
-
-/**
- * omap2_init_clksel_parent() - set a clksel clk's parent field from the hdwr
- * @clk: OMAP clock struct ptr to use
- *
- * Given a pointer @clk to a source-selectable struct clk, read the
- * hardware register and determine what its parent is currently set
- * to. Update @clk's .parent field with the appropriate clk ptr. No
- * return value.
- */
-void omap2_init_clksel_parent(struct clk *clk)
-{
- const struct clksel *clks;
- const struct clksel_rate *clkr;
- u32 r, found = 0;
- struct clk *parent;
- const char *clk_name;
-
- if (!clk->clksel || !clk->clksel_mask)
- return;
-
- parent = __clk_get_parent(clk);
- clk_name = __clk_get_name(clk);
-
- r = __raw_readl(clk->clksel_reg) & clk->clksel_mask;
- r >>= __ffs(clk->clksel_mask);
-
- for (clks = clk->clksel; clks->parent && !found; clks++) {
- for (clkr = clks->rates; clkr->div && !found; clkr++) {
- if (!(clkr->flags & cpu_mask))
- continue;
-
- if (clkr->val == r) {
- if (parent != clks->parent) {
- pr_debug("clock: %s: inited parent to %s (was %s)\n",
- clk_name,
- __clk_get_name(clks->parent),
- ((parent) ?
- __clk_get_name(parent) :
- "NULL"));
- clk_reparent(clk, clks->parent);
- }
- found = 1;
- }
- }
- }
-
- /* This indicates a data error */
- WARN(!found, "clock: %s: init parent: could not find regval %0x\n",
- clk_name, r);
-
- return;
-}
-
-#endif
/**
* omap2_clksel_recalc() - function ptr to pass via struct clk .recalc field
* function. Returns the clock's current rate, based on its parent's rate
* and its current divisor setting in the hardware.
*/
-#ifdef CONFIG_COMMON_CLK
unsigned long omap2_clksel_recalc(struct clk_hw *hw, unsigned long parent_rate)
{
unsigned long rate;
return rate;
}
-#else
-unsigned long omap2_clksel_recalc(struct clk *clk)
-{
- unsigned long rate;
- u32 div = 0;
- struct clk *parent;
-
- div = _read_divisor(clk);
- if (div == 0)
- return __clk_get_rate(clk);
-
- parent = __clk_get_parent(clk);
- rate = __clk_get_rate(parent) / div;
-
- pr_debug("clock: %s: recalc'd rate is %ld (div %d)\n",
- __clk_get_name(clk), rate, div);
-
- return rate;
-}
-#endif
/**
* omap2_clksel_round_rate() - find rounded rate for the given clock and rate
*
* Returns the rounded clock rate or returns 0xffffffff on error.
*/
-#ifdef CONFIG_COMMON_CLK
long omap2_clksel_round_rate(struct clk_hw *hw, unsigned long target_rate,
unsigned long *parent_rate)
{
struct clk_hw_omap *clk = to_clk_hw_omap(hw);
-#else
-long omap2_clksel_round_rate(struct clk *clk, unsigned long target_rate)
-{
-#endif
u32 new_div;
return omap2_clksel_round_rate_div(clk, target_rate, &new_div);
* is changed, they will all be affected without any notification.
* Returns -EINVAL upon error, or 0 upon success.
*/
-#ifdef CONFIG_COMMON_CLK
int omap2_clksel_set_rate(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate)
{
struct clk_hw_omap *clk = to_clk_hw_omap(hw);
-#else
-int omap2_clksel_set_rate(struct clk *clk, unsigned long rate)
-{
-#endif
u32 field_val, validrate, new_div = 0;
if (!clk->clksel || !clk->clksel_mask)
_write_clksel_reg(clk, field_val);
-#ifdef CONFIG_COMMON_CLK
pr_debug("clock: %s: set rate to %ld\n", __clk_get_name(hw->clk),
__clk_get_rate(hw->clk));
-#else
- pr_debug("clock: %s: set rate to %ld\n", __clk_get_name(clk),
- __clk_get_rate(clk));
-
- clk->rate = __clk_get_rate(__clk_get_parent(clk)) / new_div;
-#endif
return 0;
}
* affected without any notification. Returns -EINVAL upon error, or
* 0 upon success.
*/
-#ifdef CONFIG_COMMON_CLK
int omap2_clksel_set_parent(struct clk_hw *hw, u8 field_val)
{
struct clk_hw_omap *clk = to_clk_hw_omap(hw);
_write_clksel_reg(clk, field_val);
return 0;
}
-#else
-int omap2_clksel_set_parent(struct clk *clk, struct clk *new_parent)
-{
- u32 field_val = 0;
- u32 parent_div;
-
- if (!clk->clksel || !clk->clksel_mask)
- return -EINVAL;
-
- parent_div = _get_div_and_fieldval(new_parent, clk, &field_val);
- if (!parent_div)
- return -EINVAL;
- _write_clksel_reg(clk, field_val);
-
- clk_reparent(clk, new_parent);
-
- /* CLKSEL clocks follow their parents' rates, divided by a divisor */
- clk->rate = __clk_get_rate(new_parent);
-
- if (parent_div > 0)
- __clk_get_rate(clk) /= parent_div;
- pr_debug("clock: %s: set parent to %s (new rate %ld)\n",
- __clk_get_name(clk),
- __clk_get_name(__clk_get_parent(clk)),
- __clk_get_rate(clk));
-
- return 0;
-}
-#endif
#include <linux/kernel.h>
#include <linux/errno.h>
-#ifdef CONFIG_COMMON_CLK
#include <linux/clk-provider.h>
-#else
-#include <linux/clk.h>
-#endif
#include <linux/io.h>
#include <asm/div64.h>
* (assuming that it is counting N upwards), or -2 if the enclosing loop
* should skip to the next iteration (again assuming N is increasing).
*/
-#ifdef CONFIG_COMMON_CLK
static int _dpll_test_fint(struct clk_hw_omap *clk, u8 n)
-#else
-static int _dpll_test_fint(struct clk *clk, u8 n)
-#endif
{
struct dpll_data *dd;
long fint, fint_min, fint_max;
dd = clk->dpll_data;
/* DPLL divider must result in a valid jitter correction val */
-#ifdef CONFIG_COMMON_CLK
fint = __clk_get_rate(__clk_get_parent(clk->hw.clk)) / n;
-#else
- fint = __clk_get_rate(__clk_get_parent(clk)) / n;
-#endif
if (cpu_is_omap24xx()) {
/* Should not be called for OMAP2, so warn if it is called */
}
/* Public functions */
-#ifdef CONFIG_COMMON_CLK
u8 omap2_init_dpll_parent(struct clk_hw *hw)
{
struct clk_hw_omap *clk = to_clk_hw_omap(hw);
-#else
-void omap2_init_dpll_parent(struct clk *clk)
-{
-#endif
u32 v;
struct dpll_data *dd;
dd = clk->dpll_data;
if (!dd)
-#ifdef CONFIG_COMMON_CLK
return -EINVAL;
-#else
- return;
-#endif
v = __raw_readl(dd->control_reg);
v &= dd->enable_mask;
if (cpu_is_omap24xx()) {
if (v == OMAP2XXX_EN_DPLL_LPBYPASS ||
v == OMAP2XXX_EN_DPLL_FRBYPASS)
-#ifdef CONFIG_COMMON_CLK
return 1;
-#else
- clk_reparent(clk, dd->clk_bypass);
-#endif
} else if (cpu_is_omap34xx()) {
if (v == OMAP3XXX_EN_DPLL_LPBYPASS ||
v == OMAP3XXX_EN_DPLL_FRBYPASS)
-#ifdef CONFIG_COMMON_CLK
return 1;
-#else
- clk_reparent(clk, dd->clk_bypass);
-#endif
} else if (soc_is_am33xx() || cpu_is_omap44xx()) {
if (v == OMAP4XXX_EN_DPLL_LPBYPASS ||
v == OMAP4XXX_EN_DPLL_FRBYPASS ||
v == OMAP4XXX_EN_DPLL_MNBYPASS)
-#ifdef CONFIG_COMMON_CLK
return 1;
-#else
- clk_reparent(clk, dd->clk_bypass);
-#endif
}
-#ifdef CONFIG_COMMON_CLK
return 0;
-#else
- return;
-#endif
}
/**
* locked, or the appropriate bypass rate if the DPLL is bypassed, or 0
* if the clock @clk is not a DPLL.
*/
-#ifdef CONFIG_COMMON_CLK
unsigned long omap2_get_dpll_rate(struct clk_hw_omap *clk)
-#else
-u32 omap2_get_dpll_rate(struct clk *clk)
-#endif
{
long long dpll_clk;
u32 dpll_mult, dpll_div, v;
* (expensive) function again. Returns ~0 if the target rate cannot
* be rounded, or the rounded rate upon success.
*/
-#ifdef CONFIG_COMMON_CLK
long omap2_dpll_round_rate(struct clk_hw *hw, unsigned long target_rate,
unsigned long *parent_rate)
{
struct clk_hw_omap *clk = to_clk_hw_omap(hw);
-#else
-long omap2_dpll_round_rate(struct clk *clk, unsigned long target_rate)
-{
-#endif
int m, n, r, scaled_max_m;
unsigned long scaled_rt_rp;
unsigned long new_rate = 0;
dd = clk->dpll_data;
ref_rate = __clk_get_rate(dd->clk_ref);
-#ifdef CONFIG_COMMON_CLK
clk_name = __clk_get_name(hw->clk);
-#else
- clk_name = __clk_get_name(clk);
-#endif
pr_debug("clock: %s: starting DPLL round_rate, target rate %ld\n",
clk_name, target_rate);
#undef DEBUG
#include <linux/kernel.h>
-#ifdef CONFIG_COMMON_CLK
#include <linux/clk-provider.h>
-#else
-#include <linux/clk.h>
-#endif
#include <linux/io.h>
/* Private functions */
/* XXX */
-#ifdef CONFIG_COMMON_CLK
void omap2_clkt_iclk_allow_idle(struct clk_hw_omap *clk)
-#else
-void omap2_clkt_iclk_allow_idle(struct clk *clk)
-#endif
{
u32 v, r;
}
/* XXX */
-#ifdef CONFIG_COMMON_CLK
void omap2_clkt_iclk_deny_idle(struct clk_hw_omap *clk)
-#else
-void omap2_clkt_iclk_deny_idle(struct clk *clk)
-#endif
{
u32 v, r;
/* Public data */
-#ifdef CONFIG_COMMON_CLK
const struct clk_hw_omap_ops clkhwops_iclk = {
.allow_idle = omap2_clkt_iclk_allow_idle,
.deny_idle = omap2_clkt_iclk_deny_idle,
.find_idlest = omap2_clk_dflt_find_idlest,
.find_companion = omap2_clk_dflt_find_companion,
};
-#else
-const struct clkops clkops_omap2_iclk_dflt_wait = {
- .enable = omap2_dflt_clk_enable,
- .disable = omap2_dflt_clk_disable,
- .find_companion = omap2_clk_dflt_find_companion,
- .find_idlest = omap2_clk_dflt_find_idlest,
- .allow_idle = omap2_clkt_iclk_allow_idle,
- .deny_idle = omap2_clkt_iclk_deny_idle,
-};
-const struct clkops clkops_omap2_iclk_dflt = {
- .enable = omap2_dflt_clk_enable,
- .disable = omap2_dflt_clk_disable,
- .allow_idle = omap2_clkt_iclk_allow_idle,
- .deny_idle = omap2_clkt_iclk_deny_idle,
-};
-const struct clkops clkops_omap2_iclk_idle_only = {
- .allow_idle = omap2_clkt_iclk_allow_idle,
- .deny_idle = omap2_clkt_iclk_deny_idle,
-};
-const struct clkops clkops_omap2_mdmclk_dflt_wait = {
- .enable = omap2_dflt_clk_enable,
- .disable = omap2_dflt_clk_disable,
- .find_companion = omap2_clk_dflt_find_companion,
- .find_idlest = omap2_clk_dflt_find_idlest,
- .allow_idle = omap2_clkt_iclk_allow_idle,
- .deny_idle = omap2_clkt_iclk_deny_idle,
-};
-#endif
#include <linux/errno.h>
#include <linux/err.h>
#include <linux/delay.h>
-#ifdef CONFIG_COMMON_CLK
#include <linux/clk-provider.h>
-#else
-#include <linux/clk.h>
-#endif
#include <linux/io.h>
#include <linux/bitops.h>
*/
static bool clkdm_control = true;
-static LIST_HEAD(clocks);
-static DEFINE_MUTEX(clocks_mutex);
-#ifndef CONFIG_COMMON_CLK
-static DEFINE_SPINLOCK(clockfw_lock);
-#endif
-
-#ifdef CONFIG_COMMON_CLK
static LIST_HEAD(clk_hw_omap_clocks);
/*
return parent_rate / oclk->fixed_div;
}
-#endif
/*
* OMAP2+ specific clock functions
* belong in the clock code and will be moved in the medium term to
* module-dependent code. No return value.
*/
-#ifdef CONFIG_COMMON_CLK
static void _omap2_module_wait_ready(struct clk_hw_omap *clk)
-#else
-static void _omap2_module_wait_ready(struct clk *clk)
-#endif
{
void __iomem *companion_reg, *idlest_reg;
u8 other_bit, idlest_bit, idlest_val, idlest_reg_id;
if (r) {
/* IDLEST register not in the CM module */
_wait_idlest_generic(idlest_reg, (1 << idlest_bit), idlest_val,
-#ifdef CONFIG_COMMON_CLK
__clk_get_name(clk->hw.clk));
-#else
- clk->name);
-#endif
} else {
cm_wait_module_ready(prcm_mod, idlest_reg_id, idlest_bit);
};
* clockdomain pointer, and save it into the struct clk. Intended to be
* called during clk_register(). No return value.
*/
-#ifdef CONFIG_COMMON_CLK
void omap2_init_clk_clkdm(struct clk_hw *hw)
{
struct clk_hw_omap *clk = to_clk_hw_omap(hw);
-#else
-void omap2_init_clk_clkdm(struct clk *clk)
-{
-#endif
struct clockdomain *clkdm;
const char *clk_name;
if (!clk->clkdm_name)
return;
-#ifdef CONFIG_COMMON_CLK
clk_name = __clk_get_name(hw->clk);
-#else
- clk_name = __clk_get_name(clk);
-#endif
clkdm = clkdm_lookup(clk->clkdm_name);
if (clkdm) {
* associate this type of code with per-module data structures to
* avoid this issue, and remove the casts. No return value.
*/
-#ifdef CONFIG_COMMON_CLK
void omap2_clk_dflt_find_companion(struct clk_hw_omap *clk,
-#else
-void omap2_clk_dflt_find_companion(struct clk *clk,
-#endif
void __iomem **other_reg, u8 *other_bit)
{
u32 r;
* register address ID (e.g., that CM_FCLKEN2 corresponds to
* CM_IDLEST2). This is not true for all modules. No return value.
*/
-#ifdef CONFIG_COMMON_CLK
void omap2_clk_dflt_find_idlest(struct clk_hw_omap *clk,
-#else
-void omap2_clk_dflt_find_idlest(struct clk *clk,
-#endif
void __iomem **idlest_reg, u8 *idlest_bit, u8 *idlest_val)
{
u32 r;
}
-#ifdef CONFIG_COMMON_CLK
/**
* omap2_dflt_clk_enable - enable a clock in the hardware
* @hw: struct clk_hw * of the clock to enable
.find_idlest = omap2_clk_dflt_find_idlest,
.find_companion = omap2_clk_dflt_find_companion,
};
-#else
-int omap2_dflt_clk_enable(struct clk *clk)
-{
- u32 v;
-
- if (unlikely(clk->enable_reg == NULL)) {
- pr_err("clock.c: Enable for %s without enable code\n",
- clk->name);
- return 0; /* REVISIT: -EINVAL */
- }
-
- v = __raw_readl(clk->enable_reg);
- if (clk->flags & INVERT_ENABLE)
- v &= ~(1 << clk->enable_bit);
- else
- v |= (1 << clk->enable_bit);
- __raw_writel(v, clk->enable_reg);
- v = __raw_readl(clk->enable_reg); /* OCP barrier */
-
- if (clk->ops->find_idlest)
- _omap2_module_wait_ready(clk);
-
- return 0;
-}
-
-void omap2_dflt_clk_disable(struct clk *clk)
-{
- u32 v;
-
- if (!clk->enable_reg) {
- /*
- * 'Independent' here refers to a clock which is not
- * controlled by its parent.
- */
- pr_err("clock: clk_disable called on independent clock %s which has no enable_reg\n", clk->name);
- return;
- }
-
- v = __raw_readl(clk->enable_reg);
- if (clk->flags & INVERT_ENABLE)
- v |= (1 << clk->enable_bit);
- else
- v &= ~(1 << clk->enable_bit);
- __raw_writel(v, clk->enable_reg);
- /* No OCP barrier needed here since it is a disable operation */
-}
-
-const struct clkops clkops_omap2_dflt_wait = {
- .enable = omap2_dflt_clk_enable,
- .disable = omap2_dflt_clk_disable,
- .find_companion = omap2_clk_dflt_find_companion,
- .find_idlest = omap2_clk_dflt_find_idlest,
-};
-
-const struct clkops clkops_omap2_dflt = {
- .enable = omap2_dflt_clk_enable,
- .disable = omap2_dflt_clk_disable,
-};
-
-/**
- * omap2_clk_disable - disable a clock, if the system is not using it
- * @clk: struct clk * to disable
- *
- * Decrements the usecount on struct clk @clk. If there are no users
- * left, call the clkops-specific clock disable function to disable it
- * in hardware. If the clock is part of a clockdomain (which they all
- * should be), request that the clockdomain be disabled. (It too has
- * a usecount, and so will not be disabled in the hardware until it no
- * longer has any users.) If the clock has a parent clock (most of
- * them do), then call ourselves, recursing on the parent clock. This
- * can cause an entire branch of the clock tree to be powered off by
- * simply disabling one clock. Intended to be called with the clockfw_lock
- * spinlock held. No return value.
- */
-void omap2_clk_disable(struct clk *clk)
-{
- if (clk->usecount == 0) {
- WARN(1, "clock: %s: omap2_clk_disable() called, but usecount already 0?", clk->name);
- return;
- }
-
- pr_debug("clock: %s: decrementing usecount\n", clk->name);
-
- clk->usecount--;
-
- if (clk->usecount > 0)
- return;
-
- pr_debug("clock: %s: disabling in hardware\n", clk->name);
-
- if (clk->ops && clk->ops->disable) {
- trace_clock_disable(clk->name, 0, smp_processor_id());
- clk->ops->disable(clk);
- }
-
- if (clkdm_control && clk->clkdm)
- clkdm_clk_disable(clk->clkdm, clk);
-
- if (clk->parent)
- omap2_clk_disable(clk->parent);
-}
-
-/**
- * omap2_clk_enable - request that the system enable a clock
- * @clk: struct clk * to enable
- *
- * Increments the usecount on struct clk @clk. If there were no users
- * previously, then recurse up the clock tree, enabling all of the
- * clock's parents and all of the parent clockdomains, and finally,
- * enabling @clk's clockdomain, and @clk itself. Intended to be
- * called with the clockfw_lock spinlock held. Returns 0 upon success
- * or a negative error code upon failure.
- */
-int omap2_clk_enable(struct clk *clk)
-{
- int ret;
-
- pr_debug("clock: %s: incrementing usecount\n", clk->name);
-
- clk->usecount++;
-
- if (clk->usecount > 1)
- return 0;
-
- pr_debug("clock: %s: enabling in hardware\n", clk->name);
-
- if (clk->parent) {
- ret = omap2_clk_enable(clk->parent);
- if (ret) {
- WARN(1, "clock: %s: could not enable parent %s: %d\n",
- clk->name, clk->parent->name, ret);
- goto oce_err1;
- }
- }
-
- if (clkdm_control && clk->clkdm) {
- ret = clkdm_clk_enable(clk->clkdm, clk);
- if (ret) {
- WARN(1, "clock: %s: could not enable clockdomain %s: %d\n",
- clk->name, clk->clkdm->name, ret);
- goto oce_err2;
- }
- }
-
- if (clk->ops && clk->ops->enable) {
- trace_clock_enable(clk->name, 1, smp_processor_id());
- ret = clk->ops->enable(clk);
- if (ret) {
- WARN(1, "clock: %s: could not enable: %d\n",
- clk->name, ret);
- goto oce_err3;
- }
- }
-
- return 0;
-
-oce_err3:
- if (clkdm_control && clk->clkdm)
- clkdm_clk_disable(clk->clkdm, clk);
-oce_err2:
- if (clk->parent)
- omap2_clk_disable(clk->parent);
-oce_err1:
- clk->usecount--;
-
- return ret;
-}
-
-/* Given a clock and a rate apply a clock specific rounding function */
-long omap2_clk_round_rate(struct clk *clk, unsigned long rate)
-{
- if (clk->round_rate)
- return clk->round_rate(clk, rate);
-
- return clk->rate;
-}
-
-/* Set the clock rate for a clock source */
-int omap2_clk_set_rate(struct clk *clk, unsigned long rate)
-{
- int ret = -EINVAL;
-
- pr_debug("clock: set_rate for clock %s to rate %ld\n", clk->name, rate);
-
- /* dpll_ck, core_ck, virt_prcm_set; plus all clksel clocks */
- if (clk->set_rate) {
- trace_clock_set_rate(clk->name, rate, smp_processor_id());
- ret = clk->set_rate(clk, rate);
- }
-
- return ret;
-}
-
-int omap2_clk_set_parent(struct clk *clk, struct clk *new_parent)
-{
- if (!clk->clksel)
- return -EINVAL;
-
- if (clk->parent == new_parent)
- return 0;
-
- return omap2_clksel_set_parent(clk, new_parent);
-}
-
-/*
- * OMAP2+ clock reset and init functions
- */
-
-#ifdef CONFIG_OMAP_RESET_CLOCKS
-void omap2_clk_disable_unused(struct clk *clk)
-{
- u32 regval32, v;
-
- v = (clk->flags & INVERT_ENABLE) ? (1 << clk->enable_bit) : 0;
-
- regval32 = __raw_readl(clk->enable_reg);
- if ((regval32 & (1 << clk->enable_bit)) == v)
- return;
-
- pr_debug("Disabling unused clock \"%s\"\n", clk->name);
- if (cpu_is_omap34xx()) {
- omap2_clk_enable(clk);
- omap2_clk_disable(clk);
- } else {
- clk->ops->disable(clk);
- }
- if (clk->clkdm != NULL)
- pwrdm_state_switch(clk->clkdm->pwrdm.ptr);
-}
-#endif
-
-#endif /* CONFIG_COMMON_CLK */
/**
* omap2_clk_switch_mpurate_at_boot - switch ARM MPU rate by boot-time argument
}
calibrate_delay();
-#ifndef CONFIG_COMMON_CLK
- recalculate_root_clocks();
-#endif
-
clk_put(mpurate_ck);
return 0;
(clk_get_rate(core_ck) / 1000000),
(clk_get_rate(mpu_ck) / 1000000));
}
-
-#ifndef CONFIG_COMMON_CLK
-/* Common data */
-int clk_enable(struct clk *clk)
-{
- unsigned long flags;
- int ret;
-
- if (clk == NULL || IS_ERR(clk))
- return -EINVAL;
-
- spin_lock_irqsave(&clockfw_lock, flags);
- ret = omap2_clk_enable(clk);
- spin_unlock_irqrestore(&clockfw_lock, flags);
-
- return ret;
-}
-EXPORT_SYMBOL(clk_enable);
-
-void clk_disable(struct clk *clk)
-{
- unsigned long flags;
-
- if (clk == NULL || IS_ERR(clk))
- return;
-
- spin_lock_irqsave(&clockfw_lock, flags);
- if (clk->usecount == 0) {
- pr_err("Trying disable clock %s with 0 usecount\n",
- clk->name);
- WARN_ON(1);
- goto out;
- }
-
- omap2_clk_disable(clk);
-
-out:
- spin_unlock_irqrestore(&clockfw_lock, flags);
-}
-EXPORT_SYMBOL(clk_disable);
-
-unsigned long clk_get_rate(struct clk *clk)
-{
- unsigned long flags;
- unsigned long ret;
-
- if (clk == NULL || IS_ERR(clk))
- return 0;
-
- spin_lock_irqsave(&clockfw_lock, flags);
- ret = clk->rate;
- spin_unlock_irqrestore(&clockfw_lock, flags);
-
- return ret;
-}
-EXPORT_SYMBOL(clk_get_rate);
-
-/*
- * Optional clock functions defined in include/linux/clk.h
- */
-
-long clk_round_rate(struct clk *clk, unsigned long rate)
-{
- unsigned long flags;
- long ret;
-
- if (clk == NULL || IS_ERR(clk))
- return 0;
-
- spin_lock_irqsave(&clockfw_lock, flags);
- ret = omap2_clk_round_rate(clk, rate);
- spin_unlock_irqrestore(&clockfw_lock, flags);
-
- return ret;
-}
-EXPORT_SYMBOL(clk_round_rate);
-
-int clk_set_rate(struct clk *clk, unsigned long rate)
-{
- unsigned long flags;
- int ret = -EINVAL;
-
- if (clk == NULL || IS_ERR(clk))
- return ret;
-
- spin_lock_irqsave(&clockfw_lock, flags);
- ret = omap2_clk_set_rate(clk, rate);
- if (ret == 0)
- propagate_rate(clk);
- spin_unlock_irqrestore(&clockfw_lock, flags);
-
- return ret;
-}
-EXPORT_SYMBOL(clk_set_rate);
-
-int clk_set_parent(struct clk *clk, struct clk *parent)
-{
- unsigned long flags;
- int ret = -EINVAL;
-
- if (clk == NULL || IS_ERR(clk) || parent == NULL || IS_ERR(parent))
- return ret;
-
- spin_lock_irqsave(&clockfw_lock, flags);
- if (clk->usecount == 0) {
- ret = omap2_clk_set_parent(clk, parent);
- if (ret == 0)
- propagate_rate(clk);
- } else {
- ret = -EBUSY;
- }
- spin_unlock_irqrestore(&clockfw_lock, flags);
-
- return ret;
-}
-EXPORT_SYMBOL(clk_set_parent);
-
-struct clk *clk_get_parent(struct clk *clk)
-{
- return clk->parent;
-}
-EXPORT_SYMBOL(clk_get_parent);
-
-/*
- * OMAP specific clock functions shared between omap1 and omap2
- */
-
-int __initdata mpurate;
-
-/*
- * By default we use the rate set by the bootloader.
- * You can override this with mpurate= cmdline option.
- */
-static int __init omap_clk_setup(char *str)
-{
- get_option(&str, &mpurate);
-
- if (!mpurate)
- return 1;
-
- if (mpurate < 1000)
- mpurate *= 1000000;
-
- return 1;
-}
-__setup("mpurate=", omap_clk_setup);
-
-/* Used for clocks that always have same value as the parent clock */
-unsigned long followparent_recalc(struct clk *clk)
-{
- return clk->parent->rate;
-}
-
-/*
- * Used for clocks that have the same value as the parent clock,
- * divided by some factor
- */
-unsigned long omap_fixed_divisor_recalc(struct clk *clk)
-{
- WARN_ON(!clk->fixed_div);
-
- return clk->parent->rate / clk->fixed_div;
-}
-
-void clk_reparent(struct clk *child, struct clk *parent)
-{
- list_del_init(&child->sibling);
- if (parent)
- list_add(&child->sibling, &parent->children);
- child->parent = parent;
-
- /* now do the debugfs renaming to reattach the child
- to the proper parent */
-}
-
-/* Propagate rate to children */
-void propagate_rate(struct clk *tclk)
-{
- struct clk *clkp;
-
- list_for_each_entry(clkp, &tclk->children, sibling) {
- if (clkp->recalc)
- clkp->rate = clkp->recalc(clkp);
- propagate_rate(clkp);
- }
-}
-
-static LIST_HEAD(root_clks);
-
-/**
- * recalculate_root_clocks - recalculate and propagate all root clocks
- *
- * Recalculates all root clocks (clocks with no parent), which if the
- * clock's .recalc is set correctly, should also propagate their rates.
- * Called at init.
- */
-void recalculate_root_clocks(void)
-{
- struct clk *clkp;
-
- list_for_each_entry(clkp, &root_clks, sibling) {
- if (clkp->recalc)
- clkp->rate = clkp->recalc(clkp);
- propagate_rate(clkp);
- }
-}
-
-/**
- * clk_preinit - initialize any fields in the struct clk before clk init
- * @clk: struct clk * to initialize
- *
- * Initialize any struct clk fields needed before normal clk initialization
- * can run. No return value.
- */
-void clk_preinit(struct clk *clk)
-{
- INIT_LIST_HEAD(&clk->children);
-}
-
-int clk_register(struct clk *clk)
-{
- if (clk == NULL || IS_ERR(clk))
- return -EINVAL;
-
- /*
- * trap out already registered clocks
- */
- if (clk->node.next || clk->node.prev)
- return 0;
-
- mutex_lock(&clocks_mutex);
- if (clk->parent)
- list_add(&clk->sibling, &clk->parent->children);
- else
- list_add(&clk->sibling, &root_clks);
-
- list_add(&clk->node, &clocks);
- if (clk->init)
- clk->init(clk);
- mutex_unlock(&clocks_mutex);
-
- return 0;
-}
-EXPORT_SYMBOL(clk_register);
-
-void clk_unregister(struct clk *clk)
-{
- if (clk == NULL || IS_ERR(clk))
- return;
-
- mutex_lock(&clocks_mutex);
- list_del(&clk->sibling);
- list_del(&clk->node);
- mutex_unlock(&clocks_mutex);
-}
-EXPORT_SYMBOL(clk_unregister);
-
-void clk_enable_init_clocks(void)
-{
- struct clk *clkp;
-
- list_for_each_entry(clkp, &clocks, node)
- if (clkp->flags & ENABLE_ON_INIT)
- clk_enable(clkp);
-}
-
-/**
- * omap_clk_get_by_name - locate OMAP struct clk by its name
- * @name: name of the struct clk to locate
- *
- * Locate an OMAP struct clk by its name. Assumes that struct clk
- * names are unique. Returns NULL if not found or a pointer to the
- * struct clk if found.
- */
-struct clk *omap_clk_get_by_name(const char *name)
-{
- struct clk *c;
- struct clk *ret = NULL;
-
- mutex_lock(&clocks_mutex);
-
- list_for_each_entry(c, &clocks, node) {
- if (!strcmp(c->name, name)) {
- ret = c;
- break;
- }
- }
-
- mutex_unlock(&clocks_mutex);
-
- return ret;
-}
-
-int omap_clk_enable_autoidle_all(void)
-{
- struct clk *c;
- unsigned long flags;
-
- spin_lock_irqsave(&clockfw_lock, flags);
-
- list_for_each_entry(c, &clocks, node)
- if (c->ops->allow_idle)
- c->ops->allow_idle(c);
-
- spin_unlock_irqrestore(&clockfw_lock, flags);
-
- return 0;
-}
-
-int omap_clk_disable_autoidle_all(void)
-{
- struct clk *c;
- unsigned long flags;
-
- spin_lock_irqsave(&clockfw_lock, flags);
-
- list_for_each_entry(c, &clocks, node)
- if (c->ops->deny_idle)
- c->ops->deny_idle(c);
-
- spin_unlock_irqrestore(&clockfw_lock, flags);
-
- return 0;
-}
-
-/*
- * Low level helpers
- */
-static int clkll_enable_null(struct clk *clk)
-{
- return 0;
-}
-
-static void clkll_disable_null(struct clk *clk)
-{
-}
-
-const struct clkops clkops_null = {
- .enable = clkll_enable_null,
- .disable = clkll_disable_null,
-};
-
-/*
- * Dummy clock
- *
- * Used for clock aliases that are needed on some OMAPs, but not others
- */
-struct clk dummy_ck = {
- .name = "dummy",
- .ops = &clkops_null,
-};
-
-/*
- *
- */
-
-#ifdef CONFIG_OMAP_RESET_CLOCKS
-/*
- * Disable any unused clocks left on by the bootloader
- */
-static int __init clk_disable_unused(void)
-{
- struct clk *ck;
- unsigned long flags;
-
- pr_info("clock: disabling unused clocks to save power\n");
-
- spin_lock_irqsave(&clockfw_lock, flags);
- list_for_each_entry(ck, &clocks, node) {
- if (ck->ops == &clkops_null)
- continue;
-
- if (ck->usecount > 0 || !ck->enable_reg)
- continue;
-
- omap2_clk_disable_unused(ck);
- }
- spin_unlock_irqrestore(&clockfw_lock, flags);
-
- return 0;
-}
-late_initcall(clk_disable_unused);
-late_initcall(omap_clk_enable_autoidle_all);
-#endif
-
-#if defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS)
-/*
- * debugfs support to trace clock tree hierarchy and attributes
- */
-
-#include <linux/debugfs.h>
-#include <linux/seq_file.h>
-
-static struct dentry *clk_debugfs_root;
-
-static int clk_dbg_show_summary(struct seq_file *s, void *unused)
-{
- struct clk *c;
- struct clk *pa;
-
- mutex_lock(&clocks_mutex);
- seq_printf(s, "%-30s %-30s %-10s %s\n",
- "clock-name", "parent-name", "rate", "use-count");
-
- list_for_each_entry(c, &clocks, node) {
- pa = c->parent;
- seq_printf(s, "%-30s %-30s %-10lu %d\n",
- c->name, pa ? pa->name : "none", c->rate,
- c->usecount);
- }
- mutex_unlock(&clocks_mutex);
-
- return 0;
-}
-
-static int clk_dbg_open(struct inode *inode, struct file *file)
-{
- return single_open(file, clk_dbg_show_summary, inode->i_private);
-}
-
-static const struct file_operations debug_clock_fops = {
- .open = clk_dbg_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static int clk_debugfs_register_one(struct clk *c)
-{
- int err;
- struct dentry *d;
- struct clk *pa = c->parent;
-
- d = debugfs_create_dir(c->name, pa ? pa->dent : clk_debugfs_root);
- if (!d)
- return -ENOMEM;
- c->dent = d;
-
- d = debugfs_create_u8("usecount", S_IRUGO, c->dent, (u8 *)&c->usecount);
- if (!d) {
- err = -ENOMEM;
- goto err_out;
- }
- d = debugfs_create_u32("rate", S_IRUGO, c->dent, (u32 *)&c->rate);
- if (!d) {
- err = -ENOMEM;
- goto err_out;
- }
- d = debugfs_create_x32("flags", S_IRUGO, c->dent, (u32 *)&c->flags);
- if (!d) {
- err = -ENOMEM;
- goto err_out;
- }
- return 0;
-
-err_out:
- debugfs_remove_recursive(c->dent);
- return err;
-}
-
-static int clk_debugfs_register(struct clk *c)
-{
- int err;
- struct clk *pa = c->parent;
-
- if (pa && !pa->dent) {
- err = clk_debugfs_register(pa);
- if (err)
- return err;
- }
-
- if (!c->dent) {
- err = clk_debugfs_register_one(c);
- if (err)
- return err;
- }
- return 0;
-}
-
-static int __init clk_debugfs_init(void)
-{
- struct clk *c;
- struct dentry *d;
- int err;
-
- d = debugfs_create_dir("clock", NULL);
- if (!d)
- return -ENOMEM;
- clk_debugfs_root = d;
-
- list_for_each_entry(c, &clocks, node) {
- err = clk_debugfs_register(c);
- if (err)
- goto err_out;
- }
-
- d = debugfs_create_file("summary", S_IRUGO,
- d, NULL, &debug_clock_fops);
- if (!d)
- return -ENOMEM;
-
- return 0;
-err_out:
- debugfs_remove_recursive(clk_debugfs_root);
- return err;
-}
-late_initcall(clk_debugfs_init);
-
-#endif /* defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS) */
-#endif /* CONFIG_COMMON_CLK */
#include <linux/list.h>
#include <linux/clkdev.h>
+#include <linux/clk-provider.h>
struct omap_clk {
u16 cpu;
#define CK_34XX (CK_3430ES1 | CK_3430ES2PLUS)
#define CK_3XXX (CK_34XX | CK_AM35XX | CK_36XX)
-#ifdef CONFIG_COMMON_CLK
-#include <linux/clk-provider.h>
-
struct clockdomain;
#define to_clk_hw_omap(_hw) container_of(_hw, struct clk_hw_omap, hw)
}; \
DEFINE_STRUCT_CLK(_name, _name##_parent_names, omap_hsdivider_ops);
-
-#else
-
-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 *);
-};
-#endif
-
/* struct clksel_rate.flags possibilities */
#define RATE_IN_242X (1 << 0)
#define RATE_IN_243X (1 << 1)
#define INVERT_ENABLE (1 << 4) /* 0 enables, 1 disables */
#define CLOCK_CLKOUTX2 (1 << 5)
-#ifdef CONFIG_COMMON_CLK
/**
* struct clk_hw_omap - OMAP struct clk
* @node: list_head connecting this clock into the full clock list
unsigned long omap_fixed_divisor_recalc(struct clk_hw *hw,
unsigned long parent_rate);
-#else
-/**
- * struct clk - 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
- * @clksel: for clksel clks, pointer to struct clksel for this clock
- * @dpll_data: for DPLLs, pointer to struct dpll_data for this clock
- * @clkdm_name: clockdomain name that this clock is contained in
- * @clkdm: pointer to struct clockdomain, resolved from @clkdm_name at runtime
- * @rate_offset: bitshift for rate selection bitfield (OMAP1 only)
- * @src_offset: bitshift for source selection bitfield (OMAP1 only)
- *
- * 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 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;
- 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;
- const struct clksel *clksel;
- 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
-};
-
-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);
-};
-
-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;
-
-#endif /* CONFIG_COMMON_CLK */
/* CM_CLKSEL2_PLL.CORE_CLK_SRC bits (2XXX) */
#define CORE_CLK_SRC_32K 0x0
/* DPLL Type and DCO Selection Flags */
#define DPLL_J_TYPE 0x1
-#ifndef CONFIG_COMMON_CLK
-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);
-#endif /* CONFIG_COMMON_CLK */
-
-#ifdef CONFIG_COMMON_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);
long omap4_dpll_regm4xen_round_rate(struct clk_hw *hw,
unsigned long target_rate,
unsigned long *parent_rate);
-#else
-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);
-#endif
-#ifdef CONFIG_OMAP_RESET_CLOCKS
-void omap2_clk_disable_unused(struct clk *clk);
-#else
-#define omap2_clk_disable_unused NULL
-#endif
-#ifdef CONFIG_COMMON_CLK
void omap2_init_clk_clkdm(struct clk_hw *clk);
-#else
-void omap2_init_clk_clkdm(struct clk *clk);
-#endif
void __init omap2_clk_disable_clkdm_control(void);
/* clkt_clksel.c public functions */
-#ifdef CONFIG_COMMON_CLK
u32 omap2_clksel_round_rate_div(struct clk_hw_omap *clk,
unsigned long target_rate,
u32 *new_div);
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);
-#else
-u32 omap2_clksel_round_rate_div(struct clk *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);
-#endif
/* clkt_iclk.c public functions */
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_COMMON_CLK
u8 omap2_init_dpll_parent(struct clk_hw *hw);
unsigned long omap2_get_dpll_rate(struct clk_hw_omap *clk);
-#else
-u32 omap2_get_dpll_rate(struct clk *clk);
-void omap2_init_dpll_parent(struct clk *clk);
-#endif
-#ifdef CONFIG_COMMON_CLK
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);
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);
-#else
-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,
- u8 *other_bit);
-void omap2_clk_dflt_find_idlest(struct clk *clk, void __iomem **idlest_reg,
- u8 *idlest_bit, u8 *idlest_val);
-#endif
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,
extern const struct clksel_rate div_1_4_rates[];
extern const struct clksel_rate div31_1to31_rates[];
-#ifndef CONFIG_COMMON_CLK
-/* clocks shared between various OMAP SoCs */
-extern struct clk virt_19200000_ck;
-extern struct clk virt_26000000_ck;
-#endif
-
extern int am33xx_clk_init(void);
-#ifdef CONFIG_COMMON_CLK
extern int omap2_clkops_enable_clkdm(struct clk_hw *hw);
extern void omap2_clkops_disable_clkdm(struct clk_hw *hw);
-#endif
#endif
* OMAP3xxx clock definition files.
*/
+#include <linux/clk-private.h>
#include "clock.h"
/* clksel_rate data common to 24xx/343x */
};
/* Clocks shared between various OMAP SoCs */
-#ifdef CONFIG_COMMON_CLK
-
-#include <linux/clk-private.h>
static struct clk_ops dummy_ck_ops = {};
.ops = &dummy_ck_ops,
.flags = CLK_IS_BASIC,
};
-
-#else
-
-struct clk virt_19200000_ck = {
- .name = "virt_19200000_ck",
- .ops = &clkops_null,
- .rate = 19200000,
-};
-
-struct clk virt_26000000_ck = {
- .name = "virt_26000000_ck",
- .ops = &clkops_null,
- .rate = 26000000,
-};
-
-#endif
spin_lock_irqsave(&clkdm->lock, flags);
-#ifdef CONFIG_COMMON_CLK
/* corner case: disabling unused clocks */
if (__clk_get_enable_count(clk) == 0)
goto ccd_exit;
-#endif
if (atomic_read(&clkdm->usecount) == 0) {
spin_unlock_irqrestore(&clkdm->lock, flags);
pr_debug("clockdomain: %s: disabled\n", clkdm->name);
-#ifdef CONFIG_COMMON_CLK
ccd_exit:
-#endif
spin_unlock_irqrestore(&clkdm->lock, flags);
return 0;
projects / openwrt / staging / blogic.git / commitdiff