diff options
Diffstat (limited to 'drivers/clk/bcm')
-rw-r--r-- | drivers/clk/bcm/clk-bcm2835.c | 68 |
1 files changed, 37 insertions, 31 deletions
diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c index 7c845c293af0..0d0eeb3b0dd5 100644 --- a/drivers/clk/bcm/clk-bcm2835.c +++ b/drivers/clk/bcm/clk-bcm2835.c @@ -1296,8 +1296,9 @@ static const struct clk_ops bcm2835_vpu_clock_clk_ops = { }; static struct clk_hw *bcm2835_register_pll(struct bcm2835_cprman *cprman, - const struct bcm2835_pll_data *data) + const void *data) { + const struct bcm2835_pll_data *pll_data = data; struct bcm2835_pll *pll; struct clk_init_data init; int ret; @@ -1307,7 +1308,7 @@ static struct clk_hw *bcm2835_register_pll(struct bcm2835_cprman *cprman, /* All of the PLLs derive from the external oscillator. */ init.parent_names = &cprman->real_parent_names[0]; init.num_parents = 1; - init.name = data->name; + init.name = pll_data->name; init.ops = &bcm2835_pll_clk_ops; init.flags = CLK_IGNORE_UNUSED; @@ -1316,7 +1317,7 @@ static struct clk_hw *bcm2835_register_pll(struct bcm2835_cprman *cprman, return NULL; pll->cprman = cprman; - pll->data = data; + pll->data = pll_data; pll->hw.init = &init; ret = devm_clk_hw_register(cprman->dev, &pll->hw); @@ -1327,35 +1328,36 @@ static struct clk_hw *bcm2835_register_pll(struct bcm2835_cprman *cprman, static struct clk_hw * bcm2835_register_pll_divider(struct bcm2835_cprman *cprman, - const struct bcm2835_pll_divider_data *data) + const void *data) { + const struct bcm2835_pll_divider_data *divider_data = data; struct bcm2835_pll_divider *divider; struct clk_init_data init; const char *divider_name; int ret; - if (data->fixed_divider != 1) { + if (divider_data->fixed_divider != 1) { divider_name = devm_kasprintf(cprman->dev, GFP_KERNEL, - "%s_prediv", data->name); + "%s_prediv", divider_data->name); if (!divider_name) return NULL; } else { - divider_name = data->name; + divider_name = divider_data->name; } memset(&init, 0, sizeof(init)); - init.parent_names = &data->source_pll; + init.parent_names = ÷r_data->source_pll; init.num_parents = 1; init.name = divider_name; init.ops = &bcm2835_pll_divider_clk_ops; - init.flags = data->flags | CLK_IGNORE_UNUSED; + init.flags = divider_data->flags | CLK_IGNORE_UNUSED; divider = devm_kzalloc(cprman->dev, sizeof(*divider), GFP_KERNEL); if (!divider) return NULL; - divider->div.reg = cprman->regs + data->a2w_reg; + divider->div.reg = cprman->regs + divider_data->a2w_reg; divider->div.shift = A2W_PLL_DIV_SHIFT; divider->div.width = A2W_PLL_DIV_BITS; divider->div.flags = CLK_DIVIDER_MAX_AT_ZERO; @@ -1364,7 +1366,7 @@ bcm2835_register_pll_divider(struct bcm2835_cprman *cprman, divider->div.table = NULL; divider->cprman = cprman; - divider->data = data; + divider->data = divider_data; ret = devm_clk_hw_register(cprman->dev, ÷r->div.hw); if (ret) @@ -1374,20 +1376,22 @@ bcm2835_register_pll_divider(struct bcm2835_cprman *cprman, * PLLH's channels have a fixed divide by 10 afterwards, which * is what our consumers are actually using. */ - if (data->fixed_divider != 1) { - return clk_hw_register_fixed_factor(cprman->dev, data->name, + if (divider_data->fixed_divider != 1) { + return clk_hw_register_fixed_factor(cprman->dev, + divider_data->name, divider_name, CLK_SET_RATE_PARENT, 1, - data->fixed_divider); + divider_data->fixed_divider); } return ÷r->div.hw; } static struct clk_hw *bcm2835_register_clock(struct bcm2835_cprman *cprman, - const struct bcm2835_clock_data *data) + const void *data) { + const struct bcm2835_clock_data *clock_data = data; struct bcm2835_clock *clock; struct clk_init_data init; const char *parents[1 << CM_SRC_BITS]; @@ -1398,8 +1402,8 @@ static struct clk_hw *bcm2835_register_clock(struct bcm2835_cprman *cprman, * Replace our strings referencing parent clocks with the * actual clock-output-name of the parent. */ - for (i = 0; i < data->num_mux_parents; i++) { - parents[i] = data->parents[i]; + for (i = 0; i < clock_data->num_mux_parents; i++) { + parents[i] = clock_data->parents[i]; ret = match_string(cprman_parent_names, ARRAY_SIZE(cprman_parent_names), @@ -1410,18 +1414,18 @@ static struct clk_hw *bcm2835_register_clock(struct bcm2835_cprman *cprman, memset(&init, 0, sizeof(init)); init.parent_names = parents; - init.num_parents = data->num_mux_parents; - init.name = data->name; - init.flags = data->flags | CLK_IGNORE_UNUSED; + init.num_parents = clock_data->num_mux_parents; + init.name = clock_data->name; + init.flags = clock_data->flags | CLK_IGNORE_UNUSED; /* * Pass the CLK_SET_RATE_PARENT flag if we are allowed to propagate * rate changes on at least of the parents. */ - if (data->set_rate_parent) + if (clock_data->set_rate_parent) init.flags |= CLK_SET_RATE_PARENT; - if (data->is_vpu_clock) { + if (clock_data->is_vpu_clock) { init.ops = &bcm2835_vpu_clock_clk_ops; } else { init.ops = &bcm2835_clock_clk_ops; @@ -1430,7 +1434,7 @@ static struct clk_hw *bcm2835_register_clock(struct bcm2835_cprman *cprman, /* If the clock wasn't actually enabled at boot, it's not * critical. */ - if (!(cprman_read(cprman, data->ctl_reg) & CM_ENABLE)) + if (!(cprman_read(cprman, clock_data->ctl_reg) & CM_ENABLE)) init.flags &= ~CLK_IS_CRITICAL; } @@ -1439,7 +1443,7 @@ static struct clk_hw *bcm2835_register_clock(struct bcm2835_cprman *cprman, return NULL; clock->cprman = cprman; - clock->data = data; + clock->data = clock_data; clock->hw.init = &init; ret = devm_clk_hw_register(cprman->dev, &clock->hw); @@ -1449,24 +1453,26 @@ static struct clk_hw *bcm2835_register_clock(struct bcm2835_cprman *cprman, } static struct clk_hw *bcm2835_register_gate(struct bcm2835_cprman *cprman, - const struct bcm2835_gate_data *data) + const void *data) { - return clk_hw_register_gate(cprman->dev, data->name, data->parent, + const struct bcm2835_gate_data *gate_data = data; + + return clk_hw_register_gate(cprman->dev, gate_data->name, + gate_data->parent, CLK_IGNORE_UNUSED | CLK_SET_RATE_GATE, - cprman->regs + data->ctl_reg, + cprman->regs + gate_data->ctl_reg, CM_GATE_BIT, 0, &cprman->regs_lock); } -typedef struct clk_hw *(*bcm2835_clk_register)(struct bcm2835_cprman *cprman, - const void *data); struct bcm2835_clk_desc { - bcm2835_clk_register clk_register; + struct clk_hw *(*clk_register)(struct bcm2835_cprman *cprman, + const void *data); unsigned int supported; const void *data; }; /* assignment helper macros for different clock types */ -#define _REGISTER(f, s, ...) { .clk_register = (bcm2835_clk_register)f, \ +#define _REGISTER(f, s, ...) { .clk_register = f, \ .supported = s, \ .data = __VA_ARGS__ } #define REGISTER_PLL(s, ...) _REGISTER(&bcm2835_register_pll, \ |