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path: root/drivers/clk/ti/interface.c
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Diffstat (limited to 'drivers/clk/ti/interface.c')
-rw-r--r--drivers/clk/ti/interface.c98
1 files changed, 74 insertions, 24 deletions
diff --git a/drivers/clk/ti/interface.c b/drivers/clk/ti/interface.c
index 9c3e8c4aaa40..265d91f071c5 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 +32,102 @@ 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;
+}
+
+#if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_ATAGS)
+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;
+ 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);
+}
+#endif
+
+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)