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| author | Georgi Djakov <georgi.djakov@linaro.org> | 2020-05-12 15:53:21 +0300 |
|---|---|---|
| committer | Viresh Kumar <viresh.kumar@linaro.org> | 2020-05-29 10:15:08 +0530 |
| commit | 6d3f922c46f2e91f63c92f8dd28381f097082912 (patch) | |
| tree | 96d8512a0b37295ca4aa3d688d907b8643c74916 /include/linux/pm_opp.h | |
| parent | 90562c8182702058f9c8e562e067ec43cd3953dd (diff) | |
opp: Add support for parsing interconnect bandwidth
The OPP bindings now support bandwidth values, so add support to parse it
from device tree and store it into the new dev_pm_opp_icc_bw struct, which
is part of the dev_pm_opp.
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
[ Viresh: Create _read_bw() and use it, renamed _of_find_icc_paths() to
dev_pm_opp_of_find_icc_paths(), exported it and made opp_table
argument optional. Also drop the depends on from Kconfig. ]
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Diffstat (limited to 'include/linux/pm_opp.h')
| -rw-r--r-- | include/linux/pm_opp.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h index 747861816f4f..d5c4a329321d 100644 --- a/include/linux/pm_opp.h +++ b/include/linux/pm_opp.h @@ -42,6 +42,18 @@ struct dev_pm_opp_supply { }; /** + * struct dev_pm_opp_icc_bw - Interconnect bandwidth values + * @avg: Average bandwidth corresponding to this OPP (in icc units) + * @peak: Peak bandwidth corresponding to this OPP (in icc units) + * + * This structure stores the bandwidth values for a single interconnect path. + */ +struct dev_pm_opp_icc_bw { + u32 avg; + u32 peak; +}; + +/** * struct dev_pm_opp_info - OPP freq/voltage/current values * @rate: Target clk rate in hz * @supplies: Array of voltage/current values for all power supplies @@ -360,6 +372,7 @@ int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, struct cpumask *cpuma struct device_node *dev_pm_opp_of_get_opp_desc_node(struct device *dev); struct device_node *dev_pm_opp_get_of_node(struct dev_pm_opp *opp); int of_get_required_opp_performance_state(struct device_node *np, int index); +int dev_pm_opp_of_find_icc_paths(struct device *dev, struct opp_table *opp_table); void dev_pm_opp_of_register_em(struct cpumask *cpus); #else static inline int dev_pm_opp_of_add_table(struct device *dev) @@ -408,6 +421,11 @@ static inline int of_get_required_opp_performance_state(struct device_node *np, { return -ENOTSUPP; } + +static inline int dev_pm_opp_of_find_icc_paths(struct device *dev, struct opp_table *opp_table) +{ + return -ENOTSUPP; +} #endif #endif /* __LINUX_OPP_H__ */ |