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authorPaul Mundt <lethal@linux-sh.org>2010-08-16 00:32:24 -0400
committerPaul Mundt <lethal@linux-sh.org>2010-08-16 00:32:24 -0400
commitbbcf6e8b66ab2fb5ddab4d0fe40c2e6a5ebe5301 (patch)
tree071fa9f86dc04a16570be367d04cff3b00c694ad /drivers/sh
parent57682827b9a5edb52e33af0be9082b51bffcd5c7 (diff)
parentda5cabf80e2433131bf0ed8993abc0f7ea618c73 (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts: arch/sh/include/asm/Kbuild drivers/Makefile Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'drivers/sh')
-rw-r--r--drivers/sh/Makefile5
-rw-r--r--drivers/sh/clk-cpg.c58
2 files changed, 59 insertions, 4 deletions
diff --git a/drivers/sh/Makefile b/drivers/sh/Makefile
index 78bb5127abd0..08fc653a825c 100644
--- a/drivers/sh/Makefile
+++ b/drivers/sh/Makefile
@@ -1,9 +1,10 @@
1# 1#
2# Makefile for the SuperH specific drivers. 2# Makefile for the SuperH specific drivers.
3# 3#
4obj-y := clk.o intc.o
5
4obj-$(CONFIG_SUPERHYWAY) += superhyway/ 6obj-$(CONFIG_SUPERHYWAY) += superhyway/
5obj-$(CONFIG_MAPLE) += maple/ 7obj-$(CONFIG_MAPLE) += maple/
8
6obj-$(CONFIG_GENERIC_GPIO) += pfc.o 9obj-$(CONFIG_GENERIC_GPIO) += pfc.o
7obj-$(CONFIG_SUPERH) += clk.o
8obj-$(CONFIG_SH_CLK_CPG) += clk-cpg.o 10obj-$(CONFIG_SH_CLK_CPG) += clk-cpg.o
9obj-y += intc.o
diff --git a/drivers/sh/clk-cpg.c b/drivers/sh/clk-cpg.c
index f5c80ba9ab1c..8c024b984ed8 100644
--- a/drivers/sh/clk-cpg.c
+++ b/drivers/sh/clk-cpg.c
@@ -68,6 +68,39 @@ static unsigned long sh_clk_div6_recalc(struct clk *clk)
68 return clk->freq_table[idx].frequency; 68 return clk->freq_table[idx].frequency;
69} 69}
70 70
71static int sh_clk_div6_set_parent(struct clk *clk, struct clk *parent)
72{
73 struct clk_div_mult_table *table = &sh_clk_div6_table;
74 u32 value;
75 int ret, i;
76
77 if (!clk->parent_table || !clk->parent_num)
78 return -EINVAL;
79
80 /* Search the parent */
81 for (i = 0; i < clk->parent_num; i++)
82 if (clk->parent_table[i] == parent)
83 break;
84
85 if (i == clk->parent_num)
86 return -ENODEV;
87
88 ret = clk_reparent(clk, parent);
89 if (ret < 0)
90 return ret;
91
92 value = __raw_readl(clk->enable_reg) &
93 ~(((1 << clk->src_width) - 1) << clk->src_shift);
94
95 __raw_writel(value | (i << clk->src_shift), clk->enable_reg);
96
97 /* Rebuild the frequency table */
98 clk_rate_table_build(clk, clk->freq_table, table->nr_divisors,
99 table, &clk->arch_flags);
100
101 return 0;
102}
103
71static int sh_clk_div6_set_rate(struct clk *clk, 104static int sh_clk_div6_set_rate(struct clk *clk,
72 unsigned long rate, int algo_id) 105 unsigned long rate, int algo_id)
73{ 106{
@@ -117,7 +150,17 @@ static struct clk_ops sh_clk_div6_clk_ops = {
117 .disable = sh_clk_div6_disable, 150 .disable = sh_clk_div6_disable,
118}; 151};
119 152
120int __init sh_clk_div6_register(struct clk *clks, int nr) 153static struct clk_ops sh_clk_div6_reparent_clk_ops = {
154 .recalc = sh_clk_div6_recalc,
155 .round_rate = sh_clk_div_round_rate,
156 .set_rate = sh_clk_div6_set_rate,
157 .enable = sh_clk_div6_enable,
158 .disable = sh_clk_div6_disable,
159 .set_parent = sh_clk_div6_set_parent,
160};
161
162static int __init sh_clk_div6_register_ops(struct clk *clks, int nr,
163 struct clk_ops *ops)
121{ 164{
122 struct clk *clkp; 165 struct clk *clkp;
123 void *freq_table; 166 void *freq_table;
@@ -136,7 +179,7 @@ int __init sh_clk_div6_register(struct clk *clks, int nr)
136 for (k = 0; !ret && (k < nr); k++) { 179 for (k = 0; !ret && (k < nr); k++) {
137 clkp = clks + k; 180 clkp = clks + k;
138 181
139 clkp->ops = &sh_clk_div6_clk_ops; 182 clkp->ops = ops;
140 clkp->id = -1; 183 clkp->id = -1;
141 clkp->freq_table = freq_table + (k * freq_table_size); 184 clkp->freq_table = freq_table + (k * freq_table_size);
142 clkp->freq_table[nr_divs].frequency = CPUFREQ_TABLE_END; 185 clkp->freq_table[nr_divs].frequency = CPUFREQ_TABLE_END;
@@ -147,6 +190,17 @@ int __init sh_clk_div6_register(struct clk *clks, int nr)
147 return ret; 190 return ret;
148} 191}
149 192
193int __init sh_clk_div6_register(struct clk *clks, int nr)
194{
195 return sh_clk_div6_register_ops(clks, nr, &sh_clk_div6_clk_ops);
196}
197
198int __init sh_clk_div6_reparent_register(struct clk *clks, int nr)
199{
200 return sh_clk_div6_register_ops(clks, nr,
201 &sh_clk_div6_reparent_clk_ops);
202}
203
150static unsigned long sh_clk_div4_recalc(struct clk *clk) 204static unsigned long sh_clk_div4_recalc(struct clk *clk)
151{ 205{
152 struct clk_div4_table *d4t = clk->priv; 206 struct clk_div4_table *d4t = clk->priv;