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authorPaul Walmsley <paul@pwsan.com>2010-01-26 22:12:57 -0500
committerPaul Walmsley <paul@pwsan.com>2010-01-26 22:12:57 -0500
commite9b98f6040f5a7a04d659759d83ea28d9c528800 (patch)
tree904811708c1e70cb26eb5e680e3974087085954f /arch
parentced825293ac34d4f250775c40f13cc6330653309 (diff)
OMAP clock: make the fixed divisor clock code available for all OMAPs
One of the OMAP1 clocks can use the fixed divisor recalculation code introduced in the OMAP2 clock code, so rename the omap2_fixed_divisor_recalc() function to omap_fixed_divisor_recalc() and make it available to all OMAPs. A followup patch converts the OMAP1 clock. Signed-off-by: Paul Walmsley <paul@pwsan.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-omap2/clock.c11
-rw-r--r--arch/arm/mach-omap2/clock.h1
-rw-r--r--arch/arm/mach-omap2/clock2xxx_data.c4
-rw-r--r--arch/arm/mach-omap2/clock34xx_data.c6
-rw-r--r--arch/arm/plat-omap/clock.c11
-rw-r--r--arch/arm/plat-omap/include/plat/clock.h3
6 files changed, 18 insertions, 18 deletions
diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c
index 759c72a48f7f..7565f8e40a0e 100644
--- a/arch/arm/mach-omap2/clock.c
+++ b/arch/arm/mach-omap2/clock.c
@@ -300,17 +300,6 @@ u32 omap2_get_dpll_rate(struct clk *clk)
300 return dpll_clk; 300 return dpll_clk;
301} 301}
302 302
303/*
304 * Used for clocks that have the same value as the parent clock,
305 * divided by some factor
306 */
307unsigned long omap2_fixed_divisor_recalc(struct clk *clk)
308{
309 WARN_ON(!clk->fixed_div);
310
311 return clk->parent->rate / clk->fixed_div;
312}
313
314/** 303/**
315 * omap2_clk_dflt_find_companion - find companion clock to @clk 304 * omap2_clk_dflt_find_companion - find companion clock to @clk
316 * @clk: struct clk * to find the companion clock of 305 * @clk: struct clk * to find the companion clock of
diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h
index 93c48df3b5b1..0d70dc09370b 100644
--- a/arch/arm/mach-omap2/clock.h
+++ b/arch/arm/mach-omap2/clock.h
@@ -78,7 +78,6 @@ u32 omap2_clksel_round_rate_div(struct clk *clk, unsigned long target_rate,
78 u32 *new_div); 78 u32 *new_div);
79u32 omap2_clksel_to_divisor(struct clk *clk, u32 field_val); 79u32 omap2_clksel_to_divisor(struct clk *clk, u32 field_val);
80u32 omap2_divisor_to_clksel(struct clk *clk, u32 div); 80u32 omap2_divisor_to_clksel(struct clk *clk, u32 div);
81unsigned long omap2_fixed_divisor_recalc(struct clk *clk);
82long omap2_clksel_round_rate(struct clk *clk, unsigned long target_rate); 81long omap2_clksel_round_rate(struct clk *clk, unsigned long target_rate);
83int omap2_clksel_set_rate(struct clk *clk, unsigned long rate); 82int omap2_clksel_set_rate(struct clk *clk, unsigned long rate);
84u32 omap2_get_dpll_rate(struct clk *clk); 83u32 omap2_get_dpll_rate(struct clk *clk);
diff --git a/arch/arm/mach-omap2/clock2xxx_data.c b/arch/arm/mach-omap2/clock2xxx_data.c
index 97dc7cf7751d..402115fa9c12 100644
--- a/arch/arm/mach-omap2/clock2xxx_data.c
+++ b/arch/arm/mach-omap2/clock2xxx_data.c
@@ -261,7 +261,7 @@ static struct clk func_12m_ck = {
261 .parent = &func_48m_ck, 261 .parent = &func_48m_ck,
262 .fixed_div = 4, 262 .fixed_div = 4,
263 .clkdm_name = "wkup_clkdm", 263 .clkdm_name = "wkup_clkdm",
264 .recalc = &omap2_fixed_divisor_recalc, 264 .recalc = &omap_fixed_divisor_recalc,
265}; 265};
266 266
267/* Secure timer, only available in secure mode */ 267/* Secure timer, only available in secure mode */
@@ -557,7 +557,7 @@ static struct clk iva1_mpu_int_ifck = {
557 .enable_reg = OMAP_CM_REGADDR(OMAP24XX_DSP_MOD, CM_FCLKEN), 557 .enable_reg = OMAP_CM_REGADDR(OMAP24XX_DSP_MOD, CM_FCLKEN),
558 .enable_bit = OMAP2420_EN_IVA_MPU_SHIFT, 558 .enable_bit = OMAP2420_EN_IVA_MPU_SHIFT,
559 .fixed_div = 2, 559 .fixed_div = 2,
560 .recalc = &omap2_fixed_divisor_recalc, 560 .recalc = &omap_fixed_divisor_recalc,
561}; 561};
562 562
563/* 563/*
diff --git a/arch/arm/mach-omap2/clock34xx_data.c b/arch/arm/mach-omap2/clock34xx_data.c
index cbb421a45763..9e7f68a8fca2 100644
--- a/arch/arm/mach-omap2/clock34xx_data.c
+++ b/arch/arm/mach-omap2/clock34xx_data.c
@@ -735,7 +735,7 @@ static struct clk omap_12m_fck = {
735 .ops = &clkops_null, 735 .ops = &clkops_null,
736 .parent = &omap_48m_fck, 736 .parent = &omap_48m_fck,
737 .fixed_div = 4, 737 .fixed_div = 4,
738 .recalc = &omap2_fixed_divisor_recalc, 738 .recalc = &omap_fixed_divisor_recalc,
739}; 739};
740 740
741/* This virstual clock is the source for dpll4_m4x2_ck */ 741/* This virstual clock is the source for dpll4_m4x2_ck */
@@ -1588,7 +1588,7 @@ static struct clk ssi_sst_fck_3430es1 = {
1588 .ops = &clkops_null, 1588 .ops = &clkops_null,
1589 .parent = &ssi_ssr_fck_3430es1, 1589 .parent = &ssi_ssr_fck_3430es1,
1590 .fixed_div = 2, 1590 .fixed_div = 2,
1591 .recalc = &omap2_fixed_divisor_recalc, 1591 .recalc = &omap_fixed_divisor_recalc,
1592}; 1592};
1593 1593
1594static struct clk ssi_sst_fck_3430es2 = { 1594static struct clk ssi_sst_fck_3430es2 = {
@@ -1596,7 +1596,7 @@ static struct clk ssi_sst_fck_3430es2 = {
1596 .ops = &clkops_null, 1596 .ops = &clkops_null,
1597 .parent = &ssi_ssr_fck_3430es2, 1597 .parent = &ssi_ssr_fck_3430es2,
1598 .fixed_div = 2, 1598 .fixed_div = 2,
1599 .recalc = &omap2_fixed_divisor_recalc, 1599 .recalc = &omap_fixed_divisor_recalc,
1600}; 1600};
1601 1601
1602 1602
diff --git a/arch/arm/plat-omap/clock.c b/arch/arm/plat-omap/clock.c
index d9f8c844c385..e0f72f48b8b1 100644
--- a/arch/arm/plat-omap/clock.c
+++ b/arch/arm/plat-omap/clock.c
@@ -199,6 +199,17 @@ unsigned long followparent_recalc(struct clk *clk)
199 return clk->parent->rate; 199 return clk->parent->rate;
200} 200}
201 201
202/*
203 * Used for clocks that have the same value as the parent clock,
204 * divided by some factor
205 */
206unsigned long omap_fixed_divisor_recalc(struct clk *clk)
207{
208 WARN_ON(!clk->fixed_div);
209
210 return clk->parent->rate / clk->fixed_div;
211}
212
202void clk_reparent(struct clk *child, struct clk *parent) 213void clk_reparent(struct clk *child, struct clk *parent)
203{ 214{
204 list_del_init(&child->sibling); 215 list_del_init(&child->sibling);
diff --git a/arch/arm/plat-omap/include/plat/clock.h b/arch/arm/plat-omap/include/plat/clock.h
index 94fe2a0ce40a..896cedc923a7 100644
--- a/arch/arm/plat-omap/include/plat/clock.h
+++ b/arch/arm/plat-omap/include/plat/clock.h
@@ -88,9 +88,9 @@ struct clk {
88 void (*init)(struct clk *); 88 void (*init)(struct clk *);
89 __u8 enable_bit; 89 __u8 enable_bit;
90 __s8 usecount; 90 __s8 usecount;
91 u8 fixed_div;
91#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) || \ 92#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) || \
92 defined(CONFIG_ARCH_OMAP4) 93 defined(CONFIG_ARCH_OMAP4)
93 u8 fixed_div;
94 void __iomem *clksel_reg; 94 void __iomem *clksel_reg;
95 u32 clksel_mask; 95 u32 clksel_mask;
96 const struct clksel *clksel; 96 const struct clksel *clksel;
@@ -134,6 +134,7 @@ extern void propagate_rate(struct clk *clk);
134extern void recalculate_root_clocks(void); 134extern void recalculate_root_clocks(void);
135extern unsigned long followparent_recalc(struct clk *clk); 135extern unsigned long followparent_recalc(struct clk *clk);
136extern void clk_enable_init_clocks(void); 136extern void clk_enable_init_clocks(void);
137unsigned long omap_fixed_divisor_recalc(struct clk *clk);
137#ifdef CONFIG_CPU_FREQ 138#ifdef CONFIG_CPU_FREQ
138extern void clk_init_cpufreq_table(struct cpufreq_frequency_table **table); 139extern void clk_init_cpufreq_table(struct cpufreq_frequency_table **table);
139extern void clk_exit_cpufreq_table(struct cpufreq_frequency_table **table); 140extern void clk_exit_cpufreq_table(struct cpufreq_frequency_table **table);