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Merge branch 'clk-bcm2835' into clk-next

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This commit is contained in:
Michael Turquette 2016-02-16 12:31:51 -08:00
commit 3aef66490d
1 changed files with 9 additions and 16 deletions
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25
drivers/clk/bcm/clk-bcm2835.c
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@ -1060,16 +1060,7 @@ static long bcm2835_pll_divider_round_rate(struct clk_hw *hw,
static unsigned long bcm2835_pll_divider_get_rate(struct clk_hw *hw, static unsigned long bcm2835_pll_divider_get_rate(struct clk_hw *hw,
unsigned long parent_rate) unsigned long parent_rate)
{ {
struct bcm2835_pll_divider *divider = bcm2835_pll_divider_from_hw(hw); return clk_divider_ops.recalc_rate(hw, parent_rate);
struct bcm2835_cprman *cprman = divider->cprman;
const struct bcm2835_pll_divider_data *data = divider->data;
u32 div = cprman_read(cprman, data->a2w_reg);
div &= (1 << A2W_PLL_DIV_BITS) - 1;
if (div == 0)
div = 256;
return parent_rate / div;
} }
static void bcm2835_pll_divider_off(struct clk_hw *hw) static void bcm2835_pll_divider_off(struct clk_hw *hw)
@ -1107,13 +1098,15 @@ static int bcm2835_pll_divider_set_rate(struct clk_hw *hw,
struct bcm2835_pll_divider *divider = bcm2835_pll_divider_from_hw(hw); struct bcm2835_pll_divider *divider = bcm2835_pll_divider_from_hw(hw);
struct bcm2835_cprman *cprman = divider->cprman; struct bcm2835_cprman *cprman = divider->cprman;
const struct bcm2835_pll_divider_data *data = divider->data; const struct bcm2835_pll_divider_data *data = divider->data;
u32 cm; u32 cm, div, max_div = 1 << A2W_PLL_DIV_BITS;
int ret;
ret = clk_divider_ops.set_rate(hw, rate, parent_rate); div = DIV_ROUND_UP_ULL(parent_rate, rate);
if (ret)
return ret;
div = min(div, max_div);
if (div == max_div)
div = 0;
cprman_write(cprman, data->a2w_reg, div);
cm = cprman_read(cprman, data->cm_reg); cm = cprman_read(cprman, data->cm_reg);
cprman_write(cprman, data->cm_reg, cm | data->load_mask); cprman_write(cprman, data->cm_reg, cm | data->load_mask);
cprman_write(cprman, data->cm_reg, cm & ~data->load_mask); cprman_write(cprman, data->cm_reg, cm & ~data->load_mask);
@ -1428,7 +1421,7 @@ bcm2835_register_pll_divider(struct bcm2835_cprman *cprman,
divider->div.reg = cprman->regs + data->a2w_reg; divider->div.reg = cprman->regs + data->a2w_reg;
divider->div.shift = A2W_PLL_DIV_SHIFT; divider->div.shift = A2W_PLL_DIV_SHIFT;
divider->div.width = A2W_PLL_DIV_BITS; divider->div.width = A2W_PLL_DIV_BITS;
divider->div.flags = 0; divider->div.flags = CLK_DIVIDER_MAX_AT_ZERO;
divider->div.lock = &cprman->regs_lock; divider->div.lock = &cprman->regs_lock;
divider->div.hw.init = &init; divider->div.hw.init = &init;
divider->div.table = NULL; divider->div.table = NULL;