diff options
| author | Boris BREZILLON <b.brezillon@overkiz.com> | 2013-10-11 09:57:04 (GMT) |
|---|---|---|
| committer | Nicolas Ferre <nicolas.ferre@atmel.com> | 2013-12-02 14:31:24 (GMT) |
| commit | 1f22f8bb64b3619324020b48b03181914b1f5544 (patch) | |
| tree | 8ed682df2bc0d892304892b4b35435f89545dd31 /drivers/clk/at91/pmc.h | |
| parent | 6114067e437eb861a8e75741e3d8763475f75512 (diff) | |
| download | linux-1f22f8bb64b3619324020b48b03181914b1f5544.tar.xz | |
clk: at91: add PMC programmable clocks
This patch adds new at91 programmable clocks implementation using common clk
framework.
A programmable clock is a clock which can be exported on a given pin to clock
external devices.
Each programmable clock is given an id (from 0 to 8).
The number of available programmable clocks depends on the SoC you're using.
Programmable clock driver only implements the clock setting (clock rate and
parent setting). It must be chained to a system clock in order to
enable/disable the generated clock.
The PCKX pins used to output the clock signals must be assigned to the
appropriate peripheral (see atmel's datasheets).
Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Diffstat (limited to 'drivers/clk/at91/pmc.h')
| -rw-r--r-- | drivers/clk/at91/pmc.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/clk/at91/pmc.h b/drivers/clk/at91/pmc.h index a09212b..6eeed49 100644 --- a/drivers/clk/at91/pmc.h +++ b/drivers/clk/at91/pmc.h @@ -85,4 +85,13 @@ extern void __init of_at91rm9200_clk_periph_setup(struct device_node *np, extern void __init of_at91sam9x5_clk_periph_setup(struct device_node *np, struct at91_pmc *pmc); +#if defined(CONFIG_AT91_PROGRAMMABLE_CLOCKS) +extern void __init of_at91rm9200_clk_prog_setup(struct device_node *np, + struct at91_pmc *pmc); +extern void __init of_at91sam9g45_clk_prog_setup(struct device_node *np, + struct at91_pmc *pmc); +extern void __init of_at91sam9x5_clk_prog_setup(struct device_node *np, + struct at91_pmc *pmc); +#endif + #endif /* __PMC_H_ */ |