diff options
-rw-r--r-- | drivers/clk/ti/clock.h | 1 | ||||
-rw-r--r-- | drivers/clk/ti/gate.c | 3 | ||||
-rw-r--r-- | drivers/clk/ti/interface.c | 96 |
3 files changed, 76 insertions, 24 deletions
diff --git a/drivers/clk/ti/clock.h b/drivers/clk/ti/clock.h index d0715bc029b6..9430dc614d3c 100644 --- a/drivers/clk/ti/clock.h +++ b/drivers/clk/ti/clock.h @@ -154,6 +154,7 @@ struct ti_clk_dpll { }; struct clk *ti_clk_register_gate(struct ti_clk *setup); +struct clk *ti_clk_register_interface(struct ti_clk *setup); struct clk *ti_clk_register_mux(struct ti_clk *setup); struct clk_hw *ti_clk_build_component_gate(struct ti_clk_gate *setup); diff --git a/drivers/clk/ti/gate.c b/drivers/clk/ti/gate.c index ff3380ea3861..d4f6cb20e16e 100644 --- a/drivers/clk/ti/gate.c +++ b/drivers/clk/ti/gate.c @@ -142,6 +142,9 @@ struct clk *ti_clk_register_gate(struct ti_clk *setup) gate = setup->data; + if (gate->flags & CLKF_INTERFACE) + return ti_clk_register_interface(setup); + reg_setup = (struct clk_omap_reg *)® if (gate->flags & CLKF_SET_RATE_PARENT) diff --git a/drivers/clk/ti/interface.c b/drivers/clk/ti/interface.c index 9c3e8c4aaa40..d71cd9b5de46 100644 --- a/drivers/clk/ti/interface.c +++ b/drivers/clk/ti/interface.c @@ -20,6 +20,7 @@ #include <linux/of.h> #include <linux/of_address.h> #include <linux/clk/ti.h> +#include "clock.h" #undef pr_fmt #define pr_fmt(fmt) "%s: " fmt, __func__ @@ -31,53 +32,100 @@ static const struct clk_ops ti_interface_clk_ops = { .is_enabled = &omap2_dflt_clk_is_enabled, }; -static void __init _of_ti_interface_clk_setup(struct device_node *node, - const struct clk_hw_omap_ops *ops) +static struct clk *_register_interface(struct device *dev, const char *name, + const char *parent_name, + void __iomem *reg, u8 bit_idx, + const struct clk_hw_omap_ops *ops) { - struct clk *clk; struct clk_init_data init = { NULL }; struct clk_hw_omap *clk_hw; - const char *parent_name; - u32 val; + struct clk *clk; clk_hw = kzalloc(sizeof(*clk_hw), GFP_KERNEL); if (!clk_hw) - return; + return ERR_PTR(-ENOMEM); clk_hw->hw.init = &init; clk_hw->ops = ops; clk_hw->flags = MEMMAP_ADDRESSING; + clk_hw->enable_reg = reg; + clk_hw->enable_bit = bit_idx; - clk_hw->enable_reg = ti_clk_get_reg_addr(node, 0); - if (!clk_hw->enable_reg) - goto cleanup; - - if (!of_property_read_u32(node, "ti,bit-shift", &val)) - clk_hw->enable_bit = val; - - init.name = node->name; + init.name = name; init.ops = &ti_interface_clk_ops; init.flags = 0; - parent_name = of_clk_get_parent_name(node, 0); - if (!parent_name) { - pr_err("%s must have a parent\n", node->name); - goto cleanup; - } - init.num_parents = 1; init.parent_names = &parent_name; clk = clk_register(NULL, &clk_hw->hw); - if (!IS_ERR(clk)) { - of_clk_add_provider(node, of_clk_src_simple_get, clk); + if (IS_ERR(clk)) + kfree(clk_hw); + else omap2_init_clk_hw_omap_clocks(clk); + + return clk; +} + +struct clk *ti_clk_register_interface(struct ti_clk *setup) +{ + const struct clk_hw_omap_ops *ops = &clkhwops_iclk_wait; + u32 reg; + struct clk_omap_reg *reg_setup; + struct ti_clk_gate *gate; + + gate = setup->data; + reg_setup = (struct clk_omap_reg *)® + reg_setup->index = gate->module; + reg_setup->offset = gate->reg; + + if (gate->flags & CLKF_NO_WAIT) + ops = &clkhwops_iclk; + + if (gate->flags & CLKF_HSOTGUSB) + ops = &clkhwops_omap3430es2_iclk_hsotgusb_wait; + + if (gate->flags & CLKF_DSS) + ops = &clkhwops_omap3430es2_iclk_dss_usbhost_wait; + + if (gate->flags & CLKF_SSI) + ops = &clkhwops_omap3430es2_iclk_ssi_wait; + + if (gate->flags & CLKF_AM35XX) + ops = &clkhwops_am35xx_ipss_wait; + + return _register_interface(NULL, setup->name, gate->parent, + (void __iomem *)reg, gate->bit_shift, ops); +} + +static void __init _of_ti_interface_clk_setup(struct device_node *node, + const struct clk_hw_omap_ops *ops) +{ + struct clk *clk; + const char *parent_name; + void __iomem *reg; + u8 enable_bit = 0; + u32 val; + + reg = ti_clk_get_reg_addr(node, 0); + if (!reg) + return; + + if (!of_property_read_u32(node, "ti,bit-shift", &val)) + enable_bit = val; + + parent_name = of_clk_get_parent_name(node, 0); + if (!parent_name) { + pr_err("%s must have a parent\n", node->name); return; } -cleanup: - kfree(clk_hw); + clk = _register_interface(NULL, node->name, parent_name, reg, + enable_bit, ops); + + if (!IS_ERR(clk)) + of_clk_add_provider(node, of_clk_src_simple_get, clk); } static void __init of_ti_interface_clk_setup(struct device_node *node) |