diff options
| author |   Alexandre Belloni <alexandre.belloni@bootlin.com> | 2018-10-16 16:21:47 +0200 |
|---|---|---|
| committer |   Stephen Boyd <sboyd@kernel.org> | 2018-10-17 10:44:33 -0700 |
| commit | d387ff5427be6b93e11986c6ab6d7a8e6031e976 (patch) | |
| tree | d50a8f3a189a1c88824b853dac032682c43a7646 /drivers/clk | |
| parent | dt-bindings: clk: at91: Document new PMC binding (diff) | |
| download | linux-dev-d387ff5427be6b93e11986c6ab6d7a8e6031e976.tar.xz linux-dev-d387ff5427be6b93e11986c6ab6d7a8e6031e976.zip | |
clk: at91: add new DT lookup function
Add a new DT lookup function to lookup for PMC clocks.
Note that the #ifndef AT91_PMC_MOSCS section will be removed once all the
platforms are converted.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'drivers/clk')
| -rw-r--r-- | drivers/clk/at91/pmc.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/clk/at91/pmc.c b/drivers/clk/at91/pmc.c index 0f8b3add1b04..db24539d5740 100644 --- a/drivers/clk/at91/pmc.c +++ b/drivers/clk/at91/pmc.c @@ -19,6 +19,8 @@ #include <asm/proc-fns.h> +#include <dt-bindings/clock/at91.h> + #include "pmc.h" #define PMC_MAX_IDS 128 @@ -47,6 +49,38 @@ int of_at91_get_clk_range(struct device_node *np, const char *propname, } EXPORT_SYMBOL_GPL(of_at91_get_clk_range); +struct clk_hw *of_clk_hw_pmc_get(struct of_phandle_args *clkspec, void *data) +{ + unsigned int type = clkspec->args[0]; + unsigned int idx = clkspec->args[1]; + struct pmc_data *pmc_data = data; + + switch (type) { + case PMC_TYPE_CORE: + if (idx < pmc_data->ncore) + return pmc_data->chws[idx]; + break; + case PMC_TYPE_SYSTEM: + if (idx < pmc_data->nsystem) + return pmc_data->shws[idx]; + break; + case PMC_TYPE_PERIPHERAL: + if (idx < pmc_data->nperiph) + return pmc_data->phws[idx]; + break; + case PMC_TYPE_GCK: + if (idx < pmc_data->ngck) + return pmc_data->ghws[idx]; + break; + default: + break; + } + + pr_err("%s: invalid type (%u) or index (%u)\n", __func__, type, idx); + + return ERR_PTR(-EINVAL); +} + void pmc_data_free(struct pmc_data *pmc_data) { kfree(pmc_data->chws); |