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Merge tag 'opp-updates-5.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm

Browse Source 
Pull operating performance points (OPP) updates for 5.20-rc1 from Viresh
Kumar:

"- Make dev_pm_opp_set_regulators() accept NULL terminated list (Viresh
   Kumar).

 - Add dev_pm_opp_set_config() and friends and migrate other
   users/helpers to using them (Viresh Kumar).

 - Add support for multiple clocks for a device (Viresh Kumar and
   Krzysztof Kozlowski).

 - Configure resources before adding OPP table for Venus (Stanimir
   Varbanov).

 - Keep reference count up for opp->np and opp_table->np while they are
   still in use (Liang He).

 - Minor cleanups (Viresh Kumar and Yang Li)."

* tag 'opp-updates-5.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm: (43 commits)
  venus: pm_helpers: Fix warning in OPP during probe
  OPP: Don't drop opp->np reference while it is still in use
  OPP: Don't drop opp_table->np reference while it is still in use
  OPP: Remove dev{m}_pm_opp_of_add_table_noclk()
  PM / devfreq: tegra30: Register config_clks helper
  OPP: Allow config_clks helper for single clk case
  OPP: Provide a simple implementation to configure multiple clocks
  OPP: Assert clk_count == 1 for single clk helpers
  OPP: Add key specific assert() method to key finding helpers
  OPP: Compare bandwidths for all paths in _opp_compare_key()
  OPP: Allow multiple clocks for a device
  dt-bindings: opp: accept array of frequencies
  OPP: Make dev_pm_opp_set_opp() independent of frequency
  OPP: Reuse _opp_compare_key() in _opp_add_static_v2()
  OPP: Remove rate_not_available parameter to _opp_add()
  OPP: Use consistent names for OPP table instances
  OPP: Use generic key finding helpers for bandwidth key
  OPP: Use generic key finding helpers for level key
  OPP: Add generic key finding helpers and use them for freq APIs
  OPP: Remove dev_pm_opp_find_freq_ceil_by_volt()
  ...
This commit is contained in:
Rafael J. Wysocki
2022-08-03 17:49:38 +02:00
parent a771ea6413 1d95af02f2
commit f6e0b468da
24 changed files with 1358 additions and 1276 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
drivers/devfreq/exynos-bus.c
View File

@@ -33,7 +33,7 @@ struct exynos_bus {
unsigned long curr_freq;
struct opp_table *opp_table;
int opp_token;
struct clk *clk;
unsigned int ratio;
};
@@ -161,8 +161,7 @@ static void exynos_bus_exit(struct device *dev)
dev_pm_opp_of_remove_table(dev);
clk_disable_unprepare(bus->clk);
dev_pm_opp_put_regulators(bus->opp_table);
bus->opp_table = NULL;
dev_pm_opp_put_regulators(bus->opp_token);
}
static void exynos_bus_passive_exit(struct device *dev)
@@ -179,18 +178,16 @@ static int exynos_bus_parent_parse_of(struct device_node *np,
struct exynos_bus *bus)
{
struct device *dev = bus->dev;
struct opp_table *opp_table;
const char *vdd = "vdd";
const char *supplies[] = { "vdd", NULL };
int i, ret, count, size;
opp_table = dev_pm_opp_set_regulators(dev, &vdd, 1);
if (IS_ERR(opp_table)) {
ret = PTR_ERR(opp_table);
ret = dev_pm_opp_set_regulators(dev, supplies);
if (ret < 0) {
dev_err(dev, "failed to set regulators %d\n", ret);
return ret;
}
bus->opp_table = opp_table;
bus->opp_token = ret;
/*
* Get the devfreq-event devices to get the current utilization of
@@ -236,8 +233,7 @@ static int exynos_bus_parent_parse_of(struct device_node *np,
return 0;
err_regulator:
dev_pm_opp_put_regulators(bus->opp_table);
bus->opp_table = NULL;
dev_pm_opp_put_regulators(bus->opp_token);
return ret;
}
@@ -459,8 +455,7 @@ err:
dev_pm_opp_of_remove_table(dev);
clk_disable_unprepare(bus->clk);
err_reg:
dev_pm_opp_put_regulators(bus->opp_table);
bus->opp_table = NULL;
dev_pm_opp_put_regulators(bus->opp_token);
return ret;
}

22
drivers/devfreq/tegra30-devfreq.c
View File

@@ -821,6 +821,15 @@ static int devm_tegra_devfreq_init_hw(struct device *dev,
return err;
}
static int tegra_devfreq_config_clks_nop(struct device *dev,
struct opp_table *opp_table,
struct dev_pm_opp *opp, void *data,
bool scaling_down)
{
/* We want to skip clk configuration via dev_pm_opp_set_opp() */
return 0;
}
static int tegra_devfreq_probe(struct platform_device *pdev)
{
u32 hw_version = BIT(tegra_sku_info.soc_speedo_id);
@@ -830,6 +839,13 @@ static int tegra_devfreq_probe(struct platform_device *pdev)
unsigned int i;
long rate;
int err;
const char *clk_names[] = { "actmon", NULL };
struct dev_pm_opp_config config = {
.supported_hw = &hw_version,
.supported_hw_count = 1,
.clk_names = clk_names,
.config_clks = tegra_devfreq_config_clks_nop,
};
tegra = devm_kzalloc(&pdev->dev, sizeof(*tegra), GFP_KERNEL);
if (!tegra)
@@ -874,13 +890,13 @@ static int tegra_devfreq_probe(struct platform_device *pdev)
return err;
}
err = devm_pm_opp_set_supported_hw(&pdev->dev, &hw_version, 1);
err = devm_pm_opp_set_config(&pdev->dev, &config);
if (err) {
dev_err(&pdev->dev, "Failed to set supported HW: %d\n", err);
dev_err(&pdev->dev, "Failed to set OPP config: %d\n", err);
return err;
}
err = devm_pm_opp_of_add_table_noclk(&pdev->dev, 0);
err = devm_pm_opp_of_add_table_indexed(&pdev->dev, 0);
if (err) {
dev_err(&pdev->dev, "Failed to add OPP table: %d\n", err);
return err;