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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2020-08-04 12:44:53 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2020-08-04 12:44:53 +0200
commit9ac1fb156a40b88fddb2e2b8c36e127b0d01fb8e (patch)
treebfef415d401765990b7021e9fc45ba1a629453aa /drivers/opp
parent4daca379c703ff55edc065e8e5173dcfeecf0148 (diff)
parentf259eab3ea0e7ed73db91f6358274dd3a9a27d79 (diff)
downloadlinux-9ac1fb156a40b88fddb2e2b8c36e127b0d01fb8e.tar.bz2
Merge branch 'cpufreq/arm/linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm
Pull ARM cpufreq driver changes for v5.9-rc1 from Viresh Kumar: "Here are the details: - Adaptive voltage scaling (AVS) support and minor cleanups for brcmstb driver (Florian Fainelli and Markus Mayer). - A new tegra driver and cleanup for the existing one (Sumit Gupta and Jon Hunter). - Bandwidth level support for Qcom driver along with OPP changes (Sibi Sankar). - Cleanups to sti, cpufreq-dt, ap806, CPPC drivers (Viresh Kumar, Lee Jones, Ivan Kokshaysky, Sven Auhagen, and Xin Hao). - Make schedutil default governor for ARM (Valentin Schneider). - Fix dependency issues for imx (Walter Lozano). - Cleanup around cached_resolved_idx in cpufreq core (Viresh Kumar)." * 'cpufreq/arm/linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm: cpufreq: make schedutil the default for arm and arm64 cpufreq: cached_resolved_idx can not be negative cpufreq: Add Tegra194 cpufreq driver dt-bindings: arm: Add NVIDIA Tegra194 CPU Complex binding cpufreq: imx: Select NVMEM_IMX_OCOTP cpufreq: sti-cpufreq: Fix some formatting and misspelling issues cpufreq: tegra186: Simplify probe return path cpufreq: CPPC: Reuse caps variable in few routines cpufreq: ap806: fix cpufreq driver needs ap cpu clk cpufreq: cppc: Reorder code and remove apply_hisi_workaround variable cpufreq: dt: fix oops on armada37xx cpufreq: brcmstb-avs-cpufreq: send S2_ENTER / S2_EXIT commands to AVS cpufreq: brcmstb-avs-cpufreq: Support polling AVS firmware cpufreq: brcmstb-avs-cpufreq: more flexible interface for __issue_avs_command() cpufreq: qcom: Disable fast switch when scaling DDR/L3 cpufreq: qcom: Update the bandwidth levels on frequency change OPP: Add and export helper to set bandwidth cpufreq: blacklist SC7180 in cpufreq-dt-platdev cpufreq: blacklist SDM845 in cpufreq-dt-platdev
Diffstat (limited to 'drivers/opp')
-rw-r--r--drivers/opp/core.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index 0c8c74a3c868..9d7fb45b1786 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -832,6 +832,37 @@ static int _set_required_opps(struct device *dev,
}
/**
+ * dev_pm_opp_set_bw() - sets bandwidth levels corresponding to an opp
+ * @dev: device for which we do this operation
+ * @opp: opp based on which the bandwidth levels are to be configured
+ *
+ * This configures the bandwidth to the levels specified by the OPP. However
+ * if the OPP specified is NULL the bandwidth levels are cleared out.
+ *
+ * Return: 0 on success or a negative error value.
+ */
+int dev_pm_opp_set_bw(struct device *dev, struct dev_pm_opp *opp)
+{
+ struct opp_table *opp_table;
+ int ret;
+
+ opp_table = _find_opp_table(dev);
+ if (IS_ERR(opp_table)) {
+ dev_err(dev, "%s: device opp table doesn't exist\n", __func__);
+ return PTR_ERR(opp_table);
+ }
+
+ if (opp)
+ ret = _set_opp_bw(opp_table, opp, dev, false);
+ else
+ ret = _set_opp_bw(opp_table, NULL, dev, true);
+
+ dev_pm_opp_put_opp_table(opp_table);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(dev_pm_opp_set_bw);
+
+/**
* dev_pm_opp_set_rate() - Configure new OPP based on frequency
* @dev: device for which we do this operation
* @target_freq: frequency to achieve