renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-22 20:23:57 +08:00
Code

ARM: OMAP2: clock: Convert to common clk

Browse Source 
Convert all OMAP2 specific platform files to use COMMON clk
and keep all the changes under the CONFIG_COMMON_CLK macro check
so it does not break any existing code. At a later point switch
to COMMON clk and get rid of all old/legacy code.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Mike Turquette <mturquette@ti.com>
[paul@pwsan.com: updated to apply]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
This commit is contained in:
Rajendra Nayak 2012-04-27 15:59:32 +05:30 committed by Paul Walmsley
parent b4777a2138
commit ed1ebc4948
10 changed files with 172 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

43
arch/arm/mach-omap2/clkt2xxx_apll.c
View File

@ -38,48 +38,90 @@
/* Private functions */
#ifdef CONFIG_COMMON_CLK
int omap2_clk_apll96_enable(struct clk_hw *hw)
#else
static int _apll96_enable(struct clk *clk)
#endif
{
return omap2xxx_cm_apll96_enable();
}
#ifdef CONFIG_COMMON_CLK
int omap2_clk_apll54_enable(struct clk_hw *hw)
#else
static int _apll54_enable(struct clk *clk)
#endif
{
return omap2xxx_cm_apll54_enable();
}
#ifdef CONFIG_COMMON_CLK
static void _apll96_allow_idle(struct clk_hw_omap *clk)
#else
static void _apll96_allow_idle(struct clk *clk)
#endif
{
omap2xxx_cm_set_apll96_auto_low_power_stop();
}
#ifdef CONFIG_COMMON_CLK
static void _apll96_deny_idle(struct clk_hw_omap *clk)
#else
static void _apll96_deny_idle(struct clk *clk)
#endif
{
omap2xxx_cm_set_apll96_disable_autoidle();
}
#ifdef CONFIG_COMMON_CLK
static void _apll54_allow_idle(struct clk_hw_omap *clk)
#else
static void _apll54_allow_idle(struct clk *clk)
#endif
{
omap2xxx_cm_set_apll54_auto_low_power_stop();
}
#ifdef CONFIG_COMMON_CLK
static void _apll54_deny_idle(struct clk_hw_omap *clk)
#else
static void _apll54_deny_idle(struct clk *clk)
#endif
{
omap2xxx_cm_set_apll54_disable_autoidle();
}
#ifdef CONFIG_COMMON_CLK
void omap2_clk_apll96_disable(struct clk_hw *hw)
#else
static void _apll96_disable(struct clk *clk)
#endif
{
omap2xxx_cm_apll96_disable();
}
#ifdef CONFIG_COMMON_CLK
void omap2_clk_apll54_disable(struct clk_hw *hw)
#else
static void _apll54_disable(struct clk *clk)
#endif
{
omap2xxx_cm_apll54_disable();
}
/* Public data */
#ifdef CONFIG_COMMON_CLK
const struct clk_hw_omap_ops clkhwops_apll54 = {
.allow_idle = _apll54_allow_idle,
.deny_idle = _apll54_deny_idle,
};
const struct clk_hw_omap_ops clkhwops_apll96 = {
.allow_idle = _apll96_allow_idle,
.deny_idle = _apll96_deny_idle,
};
#else
const struct clkops clkops_apll96 = {
.enable = _apll96_enable,
.disable = _apll96_disable,
@ -93,6 +135,7 @@ const struct clkops clkops_apll54 = {
.allow_idle = _apll54_allow_idle,
.deny_idle = _apll54_deny_idle,
};
#endif
/* Public functions */

16
arch/arm/mach-omap2/clkt2xxx_dpll.c
View File

@ -29,7 +29,11 @@
* REVISIT: DPLL can optionally enter low-power bypass by writing 0x1
* instead. Add some mechanism to optionally enter this mode.
*/
#ifdef CONFIG_COMMON_CLK
static void _allow_idle(struct clk_hw_omap *clk)
#else
static void _allow_idle(struct clk *clk)
#endif
{
if (!clk || !clk->dpll_data)
return;
@ -43,7 +47,11 @@ static void _allow_idle(struct clk *clk)
*
* Disable DPLL automatic idle control. No return value.
*/
#ifdef CONFIG_COMMON_CLK
static void _deny_idle(struct clk_hw_omap *clk)
#else
static void _deny_idle(struct clk *clk)
#endif
{
if (!clk || !clk->dpll_data)
return;
@ -53,9 +61,15 @@ static void _deny_idle(struct clk *clk)
/* Public data */
#ifdef CONFIG_COMMON_CLK
const struct clk_hw_omap_ops clkhwops_omap2xxx_dpll = {
.allow_idle = _allow_idle,
.deny_idle = _deny_idle,
};
#else
const struct clkops clkops_omap2xxx_dpll_ops = {
.allow_idle = _allow_idle,
.deny_idle = _deny_idle,
};
#endif

24
arch/arm/mach-omap2/clkt2xxx_dpllcore.c
View File

@ -41,7 +41,11 @@
* (currently defined as "dpll_ck" in the OMAP2xxx clock tree). Set
* during dpll_ck init and used later by omap2xxx_clk_get_core_rate().
*/
#ifdef CONFIG_COMMON_CLK
static struct clk_hw_omap *dpll_core_ck;
#else
static struct clk *dpll_core_ck;
#endif
/**
* omap2xxx_clk_get_core_rate - return the CORE_CLK rate
@ -105,13 +109,25 @@ static long omap2_dpllcore_round_rate(unsigned long target_rate)
}
#ifdef CONFIG_COMMON_CLK
unsigned long omap2_dpllcore_recalc(struct clk_hw *hw,
unsigned long parent_rate)
#else
unsigned long omap2_dpllcore_recalc(struct clk *clk)
#endif
{
return omap2xxx_clk_get_core_rate();
}
#ifdef CONFIG_COMMON_CLK
int omap2_reprogram_dpllcore(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate)
{
struct clk_hw_omap *clk = to_clk_hw_omap(hw);
#else
int omap2_reprogram_dpllcore(struct clk *clk, unsigned long rate)
{
#endif
u32 cur_rate, low, mult, div, valid_rate, done_rate;
u32 bypass = 0;
struct prcm_config tmpset;
@ -189,8 +205,16 @@ int omap2_reprogram_dpllcore(struct clk *clk, unsigned long rate)
* statically defined, this code may need to change to increment some
* kind of use count on dpll_ck.
*/
#ifdef CONFIG_COMMON_CLK
void omap2xxx_clkt_dpllcore_init(struct clk_hw *hw)
#else
void omap2xxx_clkt_dpllcore_init(struct clk *clk)
#endif
{
WARN(dpll_core_ck, "dpll_core_ck already set - should never happen");
#ifdef CONFIG_COMMON_CLK
dpll_core_ck = to_clk_hw_omap(hw);
#else
dpll_core_ck = clk;
#endif
}

15
arch/arm/mach-omap2/clkt2xxx_osc.c
View File

@ -35,7 +35,11 @@
* clk_enable/clk_disable()-based usecounting for osc_ck should be
* replaced with autoidle-based usecounting.
*/
#ifdef CONFIG_COMMON_CLK
int omap2_enable_osc_ck(struct clk_hw *clk)
#else
static int omap2_enable_osc_ck(struct clk *clk)
#endif
{
u32 pcc;
@ -53,7 +57,11 @@ static int omap2_enable_osc_ck(struct clk *clk)
* clk_enable/clk_disable()-based usecounting for osc_ck should be
* replaced with autoidle-based usecounting.
*/
#ifdef CONFIG_COMMON_CLK
void omap2_disable_osc_ck(struct clk_hw *clk)
#else
static void omap2_disable_osc_ck(struct clk *clk)
#endif
{
u32 pcc;
@ -62,12 +70,19 @@ static void omap2_disable_osc_ck(struct clk *clk)
__raw_writel(pcc | OMAP_AUTOEXTCLKMODE_MASK, prcm_clksrc_ctrl);
}
#ifndef CONFIG_COMMON_CLK
const struct clkops clkops_oscck = {
.enable = omap2_enable_osc_ck,
.disable = omap2_disable_osc_ck,
};
#endif
#ifdef CONFIG_COMMON_CLK
unsigned long omap2_osc_clk_recalc(struct clk_hw *clk,
unsigned long parent_rate)
#else
unsigned long omap2_osc_clk_recalc(struct clk *clk)
#endif
{
return omap2xxx_get_apll_clkin() * omap2xxx_get_sysclkdiv();
}

9
arch/arm/mach-omap2/clkt2xxx_sys.c
View File

@ -40,9 +40,16 @@ u32 omap2xxx_get_sysclkdiv(void)
return div;
}
#ifdef CONFIG_COMMON_CLK
unsigned long omap2xxx_sys_clk_recalc(struct clk_hw *clk,
unsigned long parent_rate)
{
return parent_rate / omap2xxx_get_sysclkdiv();
}
#else
unsigned long omap2xxx_sys_clk_recalc(struct clk *clk)
{
return clk->parent->rate / omap2xxx_get_sysclkdiv();
}
#endif

15
arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c
View File

@ -59,7 +59,12 @@ static unsigned long sys_ck_rate;
*
* Set virt_prcm_set's rate to the mpu_speed field of the current PRCM set.
*/
#ifdef CONFIG_COMMON_CLK
unsigned long omap2_table_mpu_recalc(struct clk_hw *clk,
unsigned long parent_rate)
#else
unsigned long omap2_table_mpu_recalc(struct clk *clk)
#endif
{
return curr_prcm_set->mpu_speed;
}
@ -71,7 +76,12 @@ unsigned long omap2_table_mpu_recalc(struct clk *clk)
* Some might argue L3-DDR, others ARM, others IVA. This code is simple and
* just uses the ARM rates.
*/
#ifdef CONFIG_COMMON_CLK
long omap2_round_to_table_rate(struct clk_hw *hw, unsigned long rate,
unsigned long *parent_rate)
#else
long omap2_round_to_table_rate(struct clk *clk, unsigned long rate)
#endif
{
const struct prcm_config *ptr;
long highest_rate;
@ -94,7 +104,12 @@ long omap2_round_to_table_rate(struct clk *clk, unsigned long rate)
}
/* Sets basic clocks based on the specified rate */
#ifdef CONFIG_COMMON_CLK
int omap2_select_table_rate(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate)
#else
int omap2_select_table_rate(struct clk *clk, unsigned long rate)
#endif
{
u32 cur_rate, done_rate, bypass = 0, tmp;
const struct prcm_config *prcm;

11
arch/arm/mach-omap2/clock2430.c
View File

@ -40,7 +40,11 @@
* passes back the correct CM_IDLEST register address for I2CHS
* modules. No return value.
*/
#ifdef CONFIG_COMMON_CLK
static void omap2430_clk_i2chs_find_idlest(struct clk_hw_omap *clk,
#else
static void omap2430_clk_i2chs_find_idlest(struct clk *clk,
#endif
void __iomem **idlest_reg,
u8 *idlest_bit,
u8 *idlest_val)
@ -51,9 +55,16 @@ static void omap2430_clk_i2chs_find_idlest(struct clk *clk,
}
/* 2430 I2CHS has non-standard IDLEST register */
#ifdef CONFIG_COMMON_CLK
const struct clk_hw_omap_ops clkhwops_omap2430_i2chs_wait = {
.find_idlest = omap2430_clk_i2chs_find_idlest,
.find_companion = omap2_clk_dflt_find_companion,
};
#else
const struct clkops clkops_omap2430_i2chs_wait = {
.enable = omap2_dflt_clk_enable,
.disable = omap2_dflt_clk_disable,
.find_idlest = omap2430_clk_i2chs_find_idlest,
.find_companion = omap2_clk_dflt_find_companion,
};
#endif

1
arch/arm/mach-omap2/clock2xxx.c
View File

@ -28,6 +28,7 @@
#include "cm.h"
#include "cm-regbits-24xx.h"
struct clk_hw *dclk_hw;
/*
* Omap24xx specific clock functions
*/

33
arch/arm/mach-omap2/clock2xxx.h
View File

@ -8,6 +8,26 @@
#ifndef __ARCH_ARM_MACH_OMAP2_CLOCK2XXX_H
#define __ARCH_ARM_MACH_OMAP2_CLOCK2XXX_H
#ifdef CONFIG_COMMON_CLK
#include <linux/clk-provider.h>
#include "clock.h"
unsigned long omap2_table_mpu_recalc(struct clk_hw *clk,
unsigned long parent_rate);
int omap2_select_table_rate(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate);
long omap2_round_to_table_rate(struct clk_hw *hw, unsigned long rate,
unsigned long *parent_rate);
unsigned long omap2xxx_sys_clk_recalc(struct clk_hw *clk,
unsigned long parent_rate);
unsigned long omap2_osc_clk_recalc(struct clk_hw *clk,
unsigned long parent_rate);
unsigned long omap2_dpllcore_recalc(struct clk_hw *hw,
unsigned long parent_rate);
int omap2_reprogram_dpllcore(struct clk_hw *clk, unsigned long rate,
unsigned long parent_rate);
void omap2xxx_clkt_dpllcore_init(struct clk_hw *hw);
#else
unsigned long omap2_table_mpu_recalc(struct clk *clk);
int omap2_select_table_rate(struct clk *clk, unsigned long rate);
long omap2_round_to_table_rate(struct clk *clk, unsigned long rate);
@ -15,11 +35,12 @@ unsigned long omap2xxx_sys_clk_recalc(struct clk *clk);
unsigned long omap2_osc_clk_recalc(struct clk *clk);
unsigned long omap2_dpllcore_recalc(struct clk *clk);
int omap2_reprogram_dpllcore(struct clk *clk, unsigned long rate);
void omap2xxx_clkt_dpllcore_init(struct clk *clk);
#endif
unsigned long omap2xxx_clk_get_core_rate(void);
u32 omap2xxx_get_apll_clkin(void);
u32 omap2xxx_get_sysclkdiv(void);
void omap2xxx_clk_prepare_for_reboot(void);
void omap2xxx_clkt_dpllcore_init(struct clk *clk);
void omap2xxx_clkt_vps_check_bootloader_rates(void);
void omap2xxx_clkt_vps_late_init(void);
@ -37,9 +58,19 @@ int omap2430_clk_init(void);
extern void __iomem *prcm_clksrc_ctrl;
#ifdef CONFIG_COMMON_CLK
extern struct clk_hw *dclk_hw;
int omap2_enable_osc_ck(struct clk_hw *hw);
void omap2_disable_osc_ck(struct clk_hw *hw);
int omap2_clk_apll96_enable(struct clk_hw *hw);
int omap2_clk_apll54_enable(struct clk_hw *hw);
void omap2_clk_apll96_disable(struct clk_hw *hw);
void omap2_clk_apll54_disable(struct clk_hw *hw);
#else
extern const struct clkops clkops_omap2430_i2chs_wait;
extern const struct clkops clkops_oscck;
extern const struct clkops clkops_apll96;
extern const struct clkops clkops_apll54;
#endif
#endif

8
arch/arm/mach-omap2/pm24xx.c
View File

@ -25,7 +25,11 @@
#include <linux/sysfs.h>
#include <linux/module.h>
#include <linux/delay.h>
#ifdef CONFIG_COMMON_CLK
#include <linux/clk-provider.h>
#else
#include <linux/clk.h>
#endif
#include <linux/irq.h>
#include <linux/time.h>
#include <linux/gpio.h>
@ -202,7 +206,11 @@ static int omap2_can_sleep(void)
{
if (omap2_fclks_active())
return 0;
#ifdef CONFIG_COMMON_CLK
if (__clk_is_enabled(osc_ck))
#else
if (osc_ck->usecount > 1)
#endif
return 0;
if (omap_dma_running())
return 0;