diff options
Diffstat (limited to 'drivers/sh/clk/cpg.c')
| -rw-r--r-- | drivers/sh/clk/cpg.c | 70 |
1 files changed, 28 insertions, 42 deletions
diff --git a/drivers/sh/clk/cpg.c b/drivers/sh/clk/cpg.c index 84aeeb8fe013..29ee5f7072a4 100644 --- a/drivers/sh/clk/cpg.c +++ b/drivers/sh/clk/cpg.c @@ -100,6 +100,28 @@ static unsigned long sh_clk_div_recalc(struct clk *clk) return clk->freq_table[idx].frequency; } +static int sh_clk_div_set_rate(struct clk *clk, unsigned long rate) +{ + struct clk_div_table *dt = clk_to_div_table(clk); + unsigned long value; + int idx; + + idx = clk_rate_table_find(clk, clk->freq_table, rate); + if (idx < 0) + return idx; + + value = sh_clk_read(clk); + value &= ~(clk->div_mask << clk->enable_bit); + value |= (idx << clk->enable_bit); + sh_clk_write(value, clk); + + /* XXX: Should use a post-change notifier */ + if (dt->kick) + dt->kick(clk); + + return 0; +} + /* * div6 support */ @@ -152,28 +174,12 @@ static int sh_clk_div6_set_parent(struct clk *clk, struct clk *parent) return 0; } -static int sh_clk_div6_set_rate(struct clk *clk, unsigned long rate) -{ - unsigned long value; - int idx; - - idx = clk_rate_table_find(clk, clk->freq_table, rate); - if (idx < 0) - return idx; - - value = sh_clk_read(clk); - value &= ~clk->div_mask; - value |= idx; - sh_clk_write(value, clk); - return 0; -} - static int sh_clk_div6_enable(struct clk *clk) { unsigned long value; int ret; - ret = sh_clk_div6_set_rate(clk, clk->rate); + ret = sh_clk_div_set_rate(clk, clk->rate); if (ret == 0) { value = sh_clk_read(clk); value &= ~0x100; /* clear stop bit to enable clock */ @@ -195,7 +201,7 @@ static void sh_clk_div6_disable(struct clk *clk) static struct sh_clk_ops sh_clk_div6_clk_ops = { .recalc = sh_clk_div_recalc, .round_rate = sh_clk_div_round_rate, - .set_rate = sh_clk_div6_set_rate, + .set_rate = sh_clk_div_set_rate, .enable = sh_clk_div6_enable, .disable = sh_clk_div6_disable, }; @@ -203,7 +209,7 @@ static struct sh_clk_ops sh_clk_div6_clk_ops = { static struct sh_clk_ops sh_clk_div6_reparent_clk_ops = { .recalc = sh_clk_div_recalc, .round_rate = sh_clk_div_round_rate, - .set_rate = sh_clk_div6_set_rate, + .set_rate = sh_clk_div_set_rate, .enable = sh_clk_div6_enable, .disable = sh_clk_div6_disable, .set_parent = sh_clk_div6_set_parent, @@ -319,26 +325,6 @@ static int sh_clk_div4_set_parent(struct clk *clk, struct clk *parent) return 0; } -static int sh_clk_div4_set_rate(struct clk *clk, unsigned long rate) -{ - struct clk_div_table *dt = clk_to_div_table(clk); - unsigned long value; - int idx = clk_rate_table_find(clk, clk->freq_table, rate); - if (idx < 0) - return idx; - - value = sh_clk_read(clk); - value &= ~(clk->div_mask << clk->enable_bit); - value |= (idx << clk->enable_bit); - sh_clk_write(value, clk); - - /* XXX: Should use a post-change notifier */ - if (dt->kick) - dt->kick(clk); - - return 0; -} - static int sh_clk_div4_enable(struct clk *clk) { sh_clk_write(sh_clk_read(clk) & ~(1 << 8), clk); @@ -352,13 +338,13 @@ static void sh_clk_div4_disable(struct clk *clk) static struct sh_clk_ops sh_clk_div4_clk_ops = { .recalc = sh_clk_div_recalc, - .set_rate = sh_clk_div4_set_rate, + .set_rate = sh_clk_div_set_rate, .round_rate = sh_clk_div_round_rate, }; static struct sh_clk_ops sh_clk_div4_enable_clk_ops = { .recalc = sh_clk_div_recalc, - .set_rate = sh_clk_div4_set_rate, + .set_rate = sh_clk_div_set_rate, .round_rate = sh_clk_div_round_rate, .enable = sh_clk_div4_enable, .disable = sh_clk_div4_disable, @@ -366,7 +352,7 @@ static struct sh_clk_ops sh_clk_div4_enable_clk_ops = { static struct sh_clk_ops sh_clk_div4_reparent_clk_ops = { .recalc = sh_clk_div_recalc, - .set_rate = sh_clk_div4_set_rate, + .set_rate = sh_clk_div_set_rate, .round_rate = sh_clk_div_round_rate, .enable = sh_clk_div4_enable, .disable = sh_clk_div4_disable, |