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authorViresh Kumar <viresh.kumar@linaro.org>2018-05-30 12:49:38 +0300
committerViresh Kumar <viresh.kumar@linaro.org>2018-05-30 13:08:21 +0300
commit8a352fd8787cefcb19c25ca1390301f874797b9c (patch)
tree2fd017804d8aa6b236d56b36efb5883cc825c44d /drivers/opp
parent5019acc693d3183a19d4844f6e2d878ea2dd7ddd (diff)
downloadlinux-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.c17
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);