diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-s3c24xx/clock-s3c2410.c | 1 | ||||
| -rw-r--r-- | arch/arm/mach-s3c24xx/clock-s3c2412.c | 1 | ||||
| -rw-r--r-- | arch/arm/mach-s3c24xx/clock-s3c2416.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-s3c24xx/clock-s3c2443.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-s3c64xx/clock.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-s5p64x0/clock-s5p6440.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-s5p64x0/clock-s5p6450.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-s5pc100/clock.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-s5pv210/clock.c | 1 | ||||
| -rw-r--r-- | arch/arm/plat-samsung/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/plat-samsung/include/plat/clock.h | 4 | ||||
| -rw-r--r-- | arch/arm/plat-samsung/include/plat/pwm-clock.h | 81 | ||||
| -rw-r--r-- | arch/arm/plat-samsung/pwm-clock.c | 474 |
13 files changed, 0 insertions, 575 deletions
diff --git a/arch/arm/mach-s3c24xx/clock-s3c2410.c b/arch/arm/mach-s3c24xx/clock-s3c2410.c index 564553694b5..d39d3c78758 100644 --- a/arch/arm/mach-s3c24xx/clock-s3c2410.c +++ b/arch/arm/mach-s3c24xx/clock-s3c2410.c @@ -281,6 +281,5 @@ int __init s3c2410_baseclk_add(void) (clkslow & S3C2410_CLKSLOW_MPLL_OFF) ? "off" : "on", (clkslow & S3C2410_CLKSLOW_UCLK_OFF) ? "off" : "on"); - s3c_pwmclk_init(); return 0; } diff --git a/arch/arm/mach-s3c24xx/clock-s3c2412.c b/arch/arm/mach-s3c24xx/clock-s3c2412.c index 2cc017da88f..d8f253f2b48 100644 --- a/arch/arm/mach-s3c24xx/clock-s3c2412.c +++ b/arch/arm/mach-s3c24xx/clock-s3c2412.c @@ -757,6 +757,5 @@ int __init s3c2412_baseclk_add(void) } clkdev_add_table(s3c2412_clk_lookup, ARRAY_SIZE(s3c2412_clk_lookup)); - s3c_pwmclk_init(); return 0; } diff --git a/arch/arm/mach-s3c24xx/clock-s3c2416.c b/arch/arm/mach-s3c24xx/clock-s3c2416.c index 036056cea57..d421a72920a 100644 --- a/arch/arm/mach-s3c24xx/clock-s3c2416.c +++ b/arch/arm/mach-s3c24xx/clock-s3c2416.c @@ -168,6 +168,4 @@ void __init s3c2416_init_clocks(int xtal) s3c24xx_register_clock(&hsmmc0_clk); clkdev_add_table(s3c2416_clk_lookup, ARRAY_SIZE(s3c2416_clk_lookup)); - s3c_pwmclk_init(); - } diff --git a/arch/arm/mach-s3c24xx/clock-s3c2443.c b/arch/arm/mach-s3c24xx/clock-s3c2443.c index 0a53051b078..76cd31f7804 100644 --- a/arch/arm/mach-s3c24xx/clock-s3c2443.c +++ b/arch/arm/mach-s3c24xx/clock-s3c2443.c @@ -209,6 +209,4 @@ void __init s3c2443_init_clocks(int xtal) s3c_register_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off)); s3c_disable_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off)); clkdev_add_table(s3c2443_clk_lookup, ARRAY_SIZE(s3c2443_clk_lookup)); - - s3c_pwmclk_init(); } diff --git a/arch/arm/mach-s3c64xx/clock.c b/arch/arm/mach-s3c64xx/clock.c index 8499415be9c..c1bcc4a6d3a 100644 --- a/arch/arm/mach-s3c64xx/clock.c +++ b/arch/arm/mach-s3c64xx/clock.c @@ -1004,6 +1004,4 @@ void __init s3c64xx_register_clocks(unsigned long xtal, for (cnt = 0; cnt < ARRAY_SIZE(clksrc_cdev); cnt++) s3c_register_clksrc(clksrc_cdev[cnt], 1); clkdev_add_table(s3c64xx_clk_lookup, ARRAY_SIZE(s3c64xx_clk_lookup)); - - s3c_pwmclk_init(); } diff --git a/arch/arm/mach-s5p64x0/clock-s5p6440.c b/arch/arm/mach-s5p64x0/clock-s5p6440.c index 3537815247f..ae34a1d5e10 100644 --- a/arch/arm/mach-s5p64x0/clock-s5p6440.c +++ b/arch/arm/mach-s5p64x0/clock-s5p6440.c @@ -629,6 +629,4 @@ void __init s5p6440_register_clocks(void) clkdev_add_table(s5p6440_clk_lookup, ARRAY_SIZE(s5p6440_clk_lookup)); s3c24xx_register_clock(&dummy_apb_pclk); - - s3c_pwmclk_init(); } diff --git a/arch/arm/mach-s5p64x0/clock-s5p6450.c b/arch/arm/mach-s5p64x0/clock-s5p6450.c index af384ddd2dc..0b3ca2ed53e 100644 --- a/arch/arm/mach-s5p64x0/clock-s5p6450.c +++ b/arch/arm/mach-s5p64x0/clock-s5p6450.c @@ -698,6 +698,4 @@ void __init s5p6450_register_clocks(void) clkdev_add_table(s5p6450_clk_lookup, ARRAY_SIZE(s5p6450_clk_lookup)); s3c24xx_register_clock(&dummy_apb_pclk); - - s3c_pwmclk_init(); } diff --git a/arch/arm/mach-s5pc100/clock.c b/arch/arm/mach-s5pc100/clock.c index a206dc35eff..d0dc10ee772 100644 --- a/arch/arm/mach-s5pc100/clock.c +++ b/arch/arm/mach-s5pc100/clock.c @@ -1358,6 +1358,4 @@ void __init s5pc100_register_clocks(void) s3c_disable_clocks(clk_cdev[ptr], 1); s3c24xx_register_clock(&dummy_apb_pclk); - - s3c_pwmclk_init(); } diff --git a/arch/arm/mach-s5pv210/clock.c b/arch/arm/mach-s5pv210/clock.c index f051f53e35b..ca463724a3d 100644 --- a/arch/arm/mach-s5pv210/clock.c +++ b/arch/arm/mach-s5pv210/clock.c @@ -1362,5 +1362,4 @@ void __init s5pv210_register_clocks(void) for (ptr = 0; ptr < ARRAY_SIZE(clk_cdev); ptr++) s3c_disable_clocks(clk_cdev[ptr], 1); - s3c_pwmclk_init(); } diff --git a/arch/arm/plat-samsung/Makefile b/arch/arm/plat-samsung/Makefile index ec4241ce3db..498c7c23e9f 100644 --- a/arch/arm/plat-samsung/Makefile +++ b/arch/arm/plat-samsung/Makefile @@ -14,7 +14,6 @@ obj- := obj-y += init.o cpu.o obj-$(CONFIG_SAMSUNG_CLOCK) += clock.o -obj-$(CONFIG_SAMSUNG_CLOCK) += pwm-clock.o obj-$(CONFIG_SAMSUNG_CLKSRC) += clock-clksrc.o obj-$(CONFIG_S5P_CLOCK) += s5p-clock.o diff --git a/arch/arm/plat-samsung/include/plat/clock.h b/arch/arm/plat-samsung/include/plat/clock.h index df45d6edc98..63239f40980 100644 --- a/arch/arm/plat-samsung/include/plat/clock.h +++ b/arch/arm/plat-samsung/include/plat/clock.h @@ -145,10 +145,6 @@ extern int s3c2443_clkcon_enable_s(struct clk *clk, int enable); extern int s3c64xx_sclk_ctrl(struct clk *clk, int enable); -/* Init for pwm clock code */ - -extern void s3c_pwmclk_init(void); - /* Global watchdog clock used by arch_wtd_reset() callback */ extern struct clk *s3c2410_wdtclk; diff --git a/arch/arm/plat-samsung/include/plat/pwm-clock.h b/arch/arm/plat-samsung/include/plat/pwm-clock.h deleted file mode 100644 index bf6a60eb623..00000000000 --- a/arch/arm/plat-samsung/include/plat/pwm-clock.h +++ /dev/null @@ -1,81 +0,0 @@ -/* linux/arch/arm/plat-samsung/include/plat/pwm-clock.h - * - * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd. - * http://www.samsung.com - * - * Copyright 2008 Openmoko, Inc. - * Copyright 2008 Simtec Electronics - * Ben Dooks <ben@simtec.co.uk> - * http://armlinux.simtec.co.uk/ - * - * SAMSUNG - pwm clock and timer support - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. -*/ - -#ifndef __ASM_PLAT_PWM_CLOCK_H -#define __ASM_PLAT_PWM_CLOCK_H __FILE__ - -/** - * pwm_cfg_src_is_tclk() - return whether the given mux config is a tclk - * @tcfg: The timer TCFG1 register bits shifted down to 0. - * - * Return true if the given configuration from TCFG1 is a TCLK instead - * any of the TDIV clocks. - */ -static inline int pwm_cfg_src_is_tclk(unsigned long tcfg) -{ - if (soc_is_s3c24xx()) - return tcfg == S3C2410_TCFG1_MUX_TCLK; - else if (soc_is_s3c64xx() || soc_is_s5pc100()) - return tcfg >= S3C64XX_TCFG1_MUX_TCLK; - else if (soc_is_s5p6440() || soc_is_s5p6450()) - return 0; - else - return tcfg == S3C64XX_TCFG1_MUX_TCLK; -} - -/** - * tcfg_to_divisor() - convert tcfg1 setting to a divisor - * @tcfg1: The tcfg1 setting, shifted down. - * - * Get the divisor value for the given tcfg1 setting. We assume the - * caller has already checked to see if this is not a TCLK source. - */ -static inline unsigned long tcfg_to_divisor(unsigned long tcfg1) -{ - if (soc_is_s3c24xx()) - return 1 << (tcfg1 + 1); - else - return 1 << tcfg1; -} - -/** - * pwm_tdiv_has_div1() - does the tdiv setting have a /1 - * - * Return true if we have a /1 in the tdiv setting. - */ -static inline unsigned int pwm_tdiv_has_div1(void) -{ - if (soc_is_s3c24xx()) - return 0; - else - return 1; -} - -/** - * pwm_tdiv_div_bits() - calculate TCFG1 divisor value. - * @div: The divisor to calculate the bit information for. - * - * Turn a divisor into the necessary bit field for TCFG1. - */ -static inline unsigned long pwm_tdiv_div_bits(unsigned int div) -{ - if (soc_is_s3c24xx()) - return ilog2(div) - 1; - else - return ilog2(div); -} -#endif /* __ASM_PLAT_PWM_CLOCK_H */ diff --git a/arch/arm/plat-samsung/pwm-clock.c b/arch/arm/plat-samsung/pwm-clock.c deleted file mode 100644 index a35ff3bcffe..00000000000 --- a/arch/arm/plat-samsung/pwm-clock.c +++ /dev/null @@ -1,474 +0,0 @@ -/* linux/arch/arm/plat-s3c24xx/pwm-clock.c - * - * Copyright (c) 2007 Simtec Electronics - * Copyright (c) 2007, 2008 Ben Dooks - * Ben Dooks <ben-linux@fluff.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License. -*/ - -#include <linux/init.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/list.h> -#include <linux/errno.h> -#include <linux/log2.h> -#include <linux/clk.h> -#include <linux/err.h> -#include <linux/io.h> - -#include <mach/hardware.h> -#include <mach/map.h> -#include <asm/irq.h> - -#include <plat/clock.h> -#include <plat/cpu.h> - -#include <plat/regs-timer.h> -#include <plat/pwm-clock.h> - -/* Each of the timers 0 through 5 go through the following - * clock tree, with the inputs depending on the timers. - * - * pclk ---- [ prescaler 0 ] -+---> timer 0 - * +---> timer 1 - * - * pclk ---- [ prescaler 1 ] -+---> timer 2 - * +---> timer 3 - * \---> timer 4 - * - * Which are fed into the timers as so: - * - * prescaled 0 ---- [ div 2,4,8,16 ] ---\ - * [mux] -> timer 0 - * tclk 0 ------------------------------/ - * - * prescaled 0 ---- [ div 2,4,8,16 ] ---\ - * [mux] -> timer 1 - * tclk 0 ------------------------------/ - * - * - * prescaled 1 ---- [ div 2,4,8,16 ] ---\ - * [mux] -> timer 2 - * tclk 1 ------------------------------/ - * - * prescaled 1 ---- [ div 2,4,8,16 ] ---\ - * [mux] -> timer 3 - * tclk 1 ------------------------------/ - * - * prescaled 1 ---- [ div 2,4,8, 16 ] --\ - * [mux] -> timer 4 - * tclk 1 ------------------------------/ - * - * Since the mux and the divider are tied together in the - * same register space, it is impossible to set the parent - * and the rate at the same time. To avoid this, we add an - * intermediate 'prescaled-and-divided' clock to select - * as the parent for the timer input clock called tdiv. - * - * prescaled clk --> pwm-tdiv ---\ - * [ mux ] --> timer X - * tclk -------------------------/ -*/ - -static struct clk clk_timer_scaler[]; - -static unsigned long clk_pwm_scaler_get_rate(struct clk *clk) -{ - unsigned long tcfg0 = __raw_readl(S3C2410_TCFG0); - - if (clk == &clk_timer_scaler[1]) { - tcfg0 &= S3C2410_TCFG_PRESCALER1_MASK; - tcfg0 >>= S3C2410_TCFG_PRESCALER1_SHIFT; - } else { - tcfg0 &= S3C2410_TCFG_PRESCALER0_MASK; - } - - return clk_get_rate(clk->parent) / (tcfg0 + 1); -} - -static unsigned long clk_pwm_scaler_round_rate(struct clk *clk, - unsigned long rate) -{ - unsigned long parent_rate = clk_get_rate(clk->parent); - unsigned long divisor = parent_rate / rate; - - if (divisor > 256) - divisor = 256; - else if (divisor < 2) - divisor = 2; - - return parent_rate / divisor; -} - -static int clk_pwm_scaler_set_rate(struct clk *clk, unsigned long rate) -{ - unsigned long round = clk_pwm_scaler_round_rate(clk, rate); - unsigned long tcfg0; - unsigned long divisor; - unsigned long flags; - - divisor = clk_get_rate(clk->parent) / round; - divisor--; - - local_irq_save(flags); - tcfg0 = __raw_readl(S3C2410_TCFG0); - - if (clk == &clk_timer_scaler[1]) { - tcfg0 &= ~S3C2410_TCFG_PRESCALER1_MASK; - tcfg0 |= divisor << S3C2410_TCFG_PRESCALER1_SHIFT; - } else { - tcfg0 &= ~S3C2410_TCFG_PRESCALER0_MASK; - tcfg0 |= divisor; - } - - __raw_writel(tcfg0, S3C2410_TCFG0); - local_irq_restore(flags); - - return 0; -} - -static struct clk_ops clk_pwm_scaler_ops = { - .get_rate = clk_pwm_scaler_get_rate, - .set_rate = clk_pwm_scaler_set_rate, - .round_rate = clk_pwm_scaler_round_rate, -}; - -static struct clk clk_timer_scaler[] = { - [0] = { - .name = "pwm-scaler0", - .id = -1, - .ops = &clk_pwm_scaler_ops, - }, - [1] = { - .name = "pwm-scaler1", - .id = -1, - .ops = &clk_pwm_scaler_ops, - }, -}; - -static struct clk clk_timer_tclk[] = { - [0] = { - .name = "pwm-tclk0", - .id = -1, - }, - [1] = { - .name = "pwm-tclk1", - .id = -1, - }, -}; - -struct pwm_tdiv_clk { - struct clk clk; - unsigned int divisor; -}; - -static inline struct pwm_tdiv_clk *to_tdiv(struct clk *clk) -{ - return container_of(clk, struct pwm_tdiv_clk, clk); -} - -static unsigned long clk_pwm_tdiv_get_rate(struct clk *clk) -{ - unsigned long tcfg1 = __raw_readl(S3C2410_TCFG1); - unsigned int divisor; - - tcfg1 >>= S3C2410_TCFG1_SHIFT(clk->id); - tcfg1 &= S3C2410_TCFG1_MUX_MASK; - - if (pwm_cfg_src_is_tclk(tcfg1)) - divisor = to_tdiv(clk)->divisor; - else - divisor = tcfg_to_divisor(tcfg1); - - return clk_get_rate(clk->parent) / divisor; -} - -static unsigned long clk_pwm_tdiv_round_rate(struct clk *clk, - unsigned long rate) -{ - unsigned long parent_rate; - unsigned long divisor; - - parent_rate = clk_get_rate(clk->parent); - divisor = parent_rate / rate; - - if (divisor <= 1 && pwm_tdiv_has_div1()) - divisor = 1; - else if (divisor <= 2) - divisor = 2; - else if (divisor <= 4) - divisor = 4; - else if (divisor <= 8) - divisor = 8; - else - divisor = 16; - - return parent_rate / divisor; -} - -static unsigned long clk_pwm_tdiv_bits(struct pwm_tdiv_clk *divclk) -{ - return pwm_tdiv_div_bits(divclk->divisor); -} - -static void clk_pwm_tdiv_update(struct pwm_tdiv_clk *divclk) -{ - unsigned long tcfg1 = __raw_readl(S3C2410_TCFG1); - unsigned long bits = clk_pwm_tdiv_bits(divclk); - unsigned long flags; - unsigned long shift = S3C2410_TCFG1_SHIFT(divclk->clk.id); - - local_irq_save(flags); - - tcfg1 = __raw_readl(S3C2410_TCFG1); - tcfg1 &= ~(S3C2410_TCFG1_MUX_MASK << shift); - tcfg1 |= bits << shift; - __raw_writel(tcfg1, S3C2410_TCFG1); - - local_irq_restore(flags); -} - -static int clk_pwm_tdiv_set_rate(struct clk *clk, unsigned long rate) -{ - struct pwm_tdiv_clk *divclk = to_tdiv(clk); - unsigned long tcfg1 = __raw_readl(S3C2410_TCFG1); - unsigned long parent_rate = clk_get_rate(clk->parent); - unsigned long divisor; - - tcfg1 >>= S3C2410_TCFG1_SHIFT(clk->id); - tcfg1 &= S3C2410_TCFG1_MUX_MASK; - - rate = clk_round_rate(clk, rate); - divisor = parent_rate / rate; - - if (divisor > 16) - return -EINVAL; - - divclk->divisor = divisor; - - /* Update the current MUX settings if we are currently - * selected as the clock source for this clock. */ - - if (!pwm_cfg_src_is_tclk(tcfg1)) - clk_pwm_tdiv_update(divclk); - - return 0; -} - -static struct clk_ops clk_tdiv_ops = { - .get_rate = clk_pwm_tdiv_get_rate, - .set_rate = clk_pwm_tdiv_set_rate, - .round_rate = clk_pwm_tdiv_round_rate, -}; - -static struct pwm_tdiv_clk clk_timer_tdiv[] = { - [0] = { - .clk = { - .name = "pwm-tdiv", - .devname = "s3c24xx-pwm.0", - .ops = &clk_tdiv_ops, - .parent = &clk_timer_scaler[0], - }, - }, - [1] = { - .clk = { - .name = "pwm-tdiv", - .devname = "s3c24xx-pwm.1", - .ops = &clk_tdiv_ops, - .parent = &clk_timer_scaler[0], - } - }, - [2] = { - .clk = { - .name = "pwm-tdiv", - .devname = "s3c24xx-pwm.2", - .ops = &clk_tdiv_ops, - .parent = &clk_timer_scaler[1], - }, - }, - [3] = { - .clk = { - .name = "pwm-tdiv", - .devname = "s3c24xx-pwm.3", - .ops = &clk_tdiv_ops, - .parent = &clk_timer_scaler[1], - }, - }, - [4] = { - .clk = { - .name = "pwm-tdiv", - .devname = "s3c24xx-pwm.4", - .ops = &clk_tdiv_ops, - .parent = &clk_timer_scaler[1], - }, - }, -}; - -static int __init clk_pwm_tdiv_register(unsigned int id) -{ - struct pwm_tdiv_clk *divclk = &clk_timer_tdiv[id]; - unsigned long tcfg1 = __raw_readl(S3C2410_TCFG1); - - tcfg1 >>= S3C2410_TCFG1_SHIFT(id); - tcfg1 &= S3C2410_TCFG1_MUX_MASK; - - divclk->clk.id = id; - divclk->divisor = tcfg_to_divisor(tcfg1); - - return s3c24xx_register_clock(&divclk->clk); -} - -static inline struct clk *s3c24xx_pwmclk_tclk(unsigned int id) -{ - return (id >= 2) ? &clk_timer_tclk[1] : &clk_timer_tclk[0]; -} - -static inline struct clk *s3c24xx_pwmclk_tdiv(unsigned int id) -{ - return &clk_timer_tdiv[id].clk; -} - -static int clk_pwm_tin_set_parent(struct clk *clk, struct clk *parent) -{ - unsigned int id = clk->id; - unsigned long tcfg1; - unsigned long flags; - unsigned long bits; - unsigned long shift = S3C2410_TCFG1_SHIFT(id); - - unsigned long mux_tclk; - - if (soc_is_s3c24xx()) - mux_tclk = S3C2410_TCFG1_MUX_TCLK; - else if (soc_is_s5p6440() || soc_is_s5p6450()) - mux_tclk = 0; - else - mux_tclk = S3C64XX_TCFG1_MUX_TCLK; - - if (parent == s3c24xx_pwmclk_tclk(id)) - bits = mux_tclk << shift; - else if (parent == s3c24xx_pwmclk_tdiv(id)) - bits = clk_pwm_tdiv_bits(to_tdiv(parent)) << shift; - else - return -EINVAL; - - clk->parent = parent; - - local_irq_save(flags); - - tcfg1 = __raw_readl(S3C2410_TCFG1); - tcfg1 &= ~(S3C2410_TCFG1_MUX_MASK << shift); - __raw_writel(tcfg1 | bits, S3C2410_TCFG1); - - local_irq_restore(flags); - - return 0; -} - -static struct clk_ops clk_tin_ops = { - .set_parent = clk_pwm_tin_set_parent, -}; - -static struct clk clk_tin[] = { - [0] = { - .name = "pwm-tin", - .devname = "s3c24xx-pwm.0", - .id = 0, - .ops = &clk_tin_ops, - }, - [1] = { - .name = "pwm-tin", - .devname = "s3c24xx-pwm.1", - .id = 1, - .ops = &clk_tin_ops, - }, - [2] = { - .name = "pwm-tin", - .devname = "s3c24xx-pwm.2", - .id = 2, - .ops = &clk_tin_ops, - }, - [3] = { - .name = "pwm-tin", - .devname = "s3c24xx-pwm.3", - .id = 3, - .ops = &clk_tin_ops, - }, - [4] = { - .name = "pwm-tin", - .devname = "s3c24xx-pwm.4", - .id = 4, - .ops = &clk_tin_ops, - }, -}; - -static __init int clk_pwm_tin_register(struct clk *pwm) -{ - unsigned long tcfg1 = __raw_readl(S3C2410_TCFG1); - unsigned int id = pwm->id; - - struct clk *parent; - int ret; - - ret = s3c24xx_register_clock(pwm); - if (ret < 0) - return ret; - - tcfg1 >>= S3C2410_TCFG1_SHIFT(id); - tcfg1 &= S3C2410_TCFG1_MUX_MASK; - - if (pwm_cfg_src_is_tclk(tcfg1)) - parent = s3c24xx_pwmclk_tclk(id); - else - parent = s3c24xx_pwmclk_tdiv(id); - - return clk_set_parent(pwm, parent); -} - -/** - * s3c_pwmclk_init() - initialise pwm clocks - * - * Initialise and register the clocks which provide the inputs for the - * pwm timer blocks. - * - * Note, this call is required by the time core, so must be called after - * the base clocks are added and before any of the initcalls are run. - */ -__init void s3c_pwmclk_init(void) -{ - struct clk *clk_timers; - unsigned int clk; - int ret; - - clk_timers = clk_get(NULL, "timers"); - if (IS_ERR(clk_timers)) { - printk(KERN_ERR "%s: no parent clock\n", __func__); - return; - } - - for (clk = 0; clk < ARRAY_SIZE(clk_timer_scaler); clk++) - clk_timer_scaler[clk].parent = clk_timers; - - s3c_register_clocks(clk_timer_scaler, ARRAY_SIZE(clk_timer_scaler)); - s3c_register_clocks(clk_timer_tclk, ARRAY_SIZE(clk_timer_tclk)); - - for (clk = 0; clk < ARRAY_SIZE(clk_timer_tdiv); clk++) { - ret = clk_pwm_tdiv_register(clk); - - if (ret < 0) { - printk(KERN_ERR "error adding pwm%d tdiv clock\n", clk); - return; - } - } - - for (clk = 0; clk < ARRAY_SIZE(clk_tin); clk++) { - ret = clk_pwm_tin_register(&clk_tin[clk]); - if (ret < 0) { - printk(KERN_ERR "error adding pwm%d tin clock\n", clk); - return; - } - } -} |