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CLK: TI: add support for clockdomain binding

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Some OMAP clocks require knowledge about their parent clockdomain for
book keeping purposes. This patch creates a new DT binding for TI
clockdomains, which act as a collection of device clocks. Clockdomain
itself is rather misleading name for the hardware functionality, as at
least on OMAP4 / OMAP5 / DRA7 the clockdomains can be collections of either
clocks and/or IP blocks, thus idle-domain or such might be more appropriate.
For most cases on these SoCs, the kernel doesn't even need the information
and the mappings can be ignored.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
This commit is contained in:
Tero Kristo
2013-08-21 19:39:15 +03:00
committed by Mike Turquette
parent f60b1ea5ea
commit 3cd4a59622
4 changed files with 96 additions and 1 deletions
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1
include/linux/clk/ti.h
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@@ -255,6 +255,7 @@ int omap2_dflt_clk_is_enabled(struct clk_hw *hw);
void __iomem *ti_clk_get_reg_addr(struct device_node *node, int index);
void ti_dt_clocks_register(struct ti_dt_clk *oclks);
void ti_dt_clk_init_provider(struct device_node *np, int index);
void ti_dt_clockdomains_setup(void);
int ti_clk_retry_init(struct device_node *node, struct clk_hw *hw,
ti_of_clk_init_cb_t func);
int of_ti_clk_autoidle_setup(struct device_node *node);