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| author | Viresh Kumar <viresh.kumar@linaro.org> | 2018-05-30 12:49:38 +0300 |
|---|---|---|
| committer | Viresh Kumar <viresh.kumar@linaro.org> | 2018-05-30 13:08:21 +0300 |
| commit | 8a352fd8787cefcb19c25ca1390301f874797b9c (patch) | |
| tree | 2fd017804d8aa6b236d56b36efb5883cc825c44d /drivers/opp | |
| parent | 5019acc693d3183a19d4844f6e2d878ea2dd7ddd (diff) | |
| download | linux-8a352fd8787cefcb19c25ca1390301f874797b9c.tar.xz | |
OPP: Allow same OPP table to be used for multiple genpd
The OPP binding says:
Property: operating-points-v2
...
This can contain more than one phandle for power domain
providers that provide multiple power domains. That is, one
phandle for each power domain. If only one phandle is available,
then the same OPP table will be used for all power domains
provided by the power domain provider.
But the OPP core isn't allowing the same OPP table to be used for
multiple domains. Update dev_pm_opp_of_add_table_indexed() to allow
that.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Tested-by: Rajendra Nayak <rnayak@codeaurora.org>
Diffstat (limited to 'drivers/opp')
| -rw-r--r-- | drivers/opp/of.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/opp/of.c b/drivers/opp/of.c index 6d15f05bfc28..7af0ddec936b 100644 --- a/drivers/opp/of.c +++ b/drivers/opp/of.c @@ -554,11 +554,24 @@ EXPORT_SYMBOL_GPL(dev_pm_opp_of_add_table); int dev_pm_opp_of_add_table_indexed(struct device *dev, int index) { struct device_node *opp_np; - int ret; + int ret, count; +again: opp_np = _opp_of_get_opp_desc_node(dev->of_node, index); - if (!opp_np) + if (!opp_np) { + /* + * If only one phandle is present, then the same OPP table + * applies for all index requests. + */ + count = of_count_phandle_with_args(dev->of_node, + "operating-points-v2", NULL); + if (count == 1 && index) { + index = 0; + goto again; + } + return -ENODEV; + } ret = _of_add_opp_table_v2(dev, opp_np); of_node_put(opp_np); |