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authorViresh Kumar <viresh.kumar@linaro.org>2018-06-07 12:20:43 +0300
committerViresh Kumar <viresh.kumar@linaro.org>2018-11-05 05:10:42 +0300
commit5d6d106fa45501ea6494a8653adbf2bee4a6f803 (patch)
treecbaea1ef9c2dc2bfb65bd8bb390f1922ca71a1db /drivers/opp/opp.h
parent7e535993fa4f671dbbd7fd95c93ce90181ddd9e1 (diff)
downloadlinux-5d6d106fa45501ea6494a8653adbf2bee4a6f803.tar.xz
OPP: Populate required opp tables from "required-opps" property
The current implementation works only for the case where a single phandle is present in the "required-opps" property, while DT allows multiple phandles to be present there. This patch adds new infrastructure to parse all the phandles present in "required-opps" property and save pointers of the required OPP's OPP tables. These will be used by later commits. Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Diffstat (limited to 'drivers/opp/opp.h')
-rw-r--r--drivers/opp/opp.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/opp/opp.h b/drivers/opp/opp.h
index cdb0c2b095e2..024e1be23d37 100644
--- a/drivers/opp/opp.h
+++ b/drivers/opp/opp.h
@@ -133,6 +133,9 @@ enum opp_table_access {
* @parsed_static_opps: True if OPPs are initialized from DT.
* @shared_opp: OPP is shared between multiple devices.
* @suspend_opp: Pointer to OPP to be used during device suspend.
+ * @required_opp_tables: List of device OPP tables that are required by OPPs in
+ * this table.
+ * @required_opp_count: Number of required devices.
* @supported_hw: Array of version number to support.
* @supported_hw_count: Number of elements in supported_hw array.
* @prop_name: A name to postfix to many DT properties, while parsing them.
@@ -172,6 +175,9 @@ struct opp_table {
enum opp_table_access shared_opp;
struct dev_pm_opp *suspend_opp;
+ struct opp_table **required_opp_tables;
+ unsigned int required_opp_count;
+
unsigned int *supported_hw;
unsigned int supported_hw_count;
const char *prop_name;
@@ -208,9 +214,11 @@ void _put_opp_list_kref(struct opp_table *opp_table);
#ifdef CONFIG_OF
void _of_init_opp_table(struct opp_table *opp_table, struct device *dev, int index);
+void _of_clear_opp_table(struct opp_table *opp_table);
struct opp_table *_managed_opp(struct device *dev, int index);
#else
static inline void _of_init_opp_table(struct opp_table *opp_table, struct device *dev, int index) {}
+static inline void _of_clear_opp_table(struct opp_table *opp_table) {}
static inline struct opp_table *_managed_opp(struct device *dev, int index) { return NULL; }
#endif