[PATCH v13 02/35] soc/tegra: Add devm_tegra_core_dev_init_opp_table_common()
From: Dmitry Osipenko <digetx@gmail.com>
Date: 2021-09-26 22:42:41
Also in:
dri-devel, linux-clk, linux-mmc, linux-pm, linux-pwm, linux-staging, linux-tegra, linux-usb, lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
Only couple drivers need to get the -ENODEV error code and majority of drivers need to explicitly initialize the performance state. Add new common helper which sets up OPP table for these drivers. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> --- include/soc/tegra/common.h | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+)
diff --git a/include/soc/tegra/common.h b/include/soc/tegra/common.h
index af41ad80ec21..5b4a042f60fb 100644
--- a/include/soc/tegra/common.h
+++ b/include/soc/tegra/common.h@@ -39,4 +39,28 @@ devm_tegra_core_dev_init_opp_table(struct device *dev, } #endif +/* + * This function should be invoked with the enabled runtime PM of the device + * in order to initialize performance state properly. Most of Tegra devices + * are assumed to be suspended at a probe time and GENPD require RPM to be + * enabled to set up the rpm-resume state, otherwise device is active and + * performance state is applied immediately. Note that it will initialize + * OPP bandwidth if it's wired in a device-tree for this device, which is + * undesirable for a suspended device. + */ +static inline int +devm_tegra_core_dev_init_opp_table_common(struct device *dev) +{ + struct tegra_core_opp_params opp_params = {}; + int err; + + opp_params.init_state = true; + + err = devm_tegra_core_dev_init_opp_table(dev, &opp_params); + if (err != -ENODEV) + return err; + + return 0; +} + #endif /* __SOC_TEGRA_COMMON_H__ */
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2.32.0