[PATCH v2 2/3] cpufreq: mt8173: migrate to use operating-points-v2 bindings
From: Pi-Cheng Chen <hidden>
Date: 2015-12-27 06:21:57
Also in:
linux-devicetree, linux-mediatek, linux-pm
Subsystem:
cpu frequency scaling framework, the rest · Maintainers:
"Rafael J. Wysocki", Viresh Kumar, Linus Torvalds
Modify mt8173-cpufreq driver to get OPP-sharing information and set up OPP table provided by operating-points-v2 bindings. Signed-off-by: Pi-Cheng Chen <redacted> --- drivers/cpufreq/mt8173-cpufreq.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-)
diff --git a/drivers/cpufreq/mt8173-cpufreq.c b/drivers/cpufreq/mt8173-cpufreq.c
index fd601b9..1efba34 100644
--- a/drivers/cpufreq/mt8173-cpufreq.c
+++ b/drivers/cpufreq/mt8173-cpufreq.c@@ -390,7 +390,15 @@ static int mtk_cpu_dvfs_info_init(struct mtk_cpu_dvfs_info *info, int cpu) /* Both presence and absence of sram regulator are valid cases. */ sram_reg = regulator_get_exclusive(cpu_dev, "sram"); - ret = dev_pm_opp_of_add_table(cpu_dev); + /* Get OPP-sharing information from "operating-points-v2" bindings */ + ret = dev_pm_opp_of_get_sharing_cpus(cpu_dev, &info->cpus); + if (ret) { + pr_err("failed to get OPP-sharing information for cpu%d\n", + cpu); + goto out_free_resources; + } + + ret = dev_pm_opp_of_cpumask_add_table(&info->cpus); if (ret) { pr_warn("no OPP table for cpu%d\n", cpu); goto out_free_resources;
@@ -421,13 +429,10 @@ static int mtk_cpu_dvfs_info_init(struct mtk_cpu_dvfs_info *info, int cpu) */ info->need_voltage_tracking = !IS_ERR(sram_reg); - /* CPUs in the same cluster share a clock and power domain. */ - cpumask_copy(&info->cpus, &cpu_topology[cpu].core_sibling); - return 0; out_free_opp_table: - dev_pm_opp_of_remove_table(cpu_dev); + dev_pm_opp_of_cpumask_remove_table(&info->cpus); out_free_resources: if (!IS_ERR(proc_reg))
@@ -453,7 +458,7 @@ static void mtk_cpu_dvfs_info_release(struct mtk_cpu_dvfs_info *info) if (!IS_ERR(info->inter_clk)) clk_put(info->inter_clk); - dev_pm_opp_of_remove_table(info->cpu_dev); + dev_pm_opp_of_cpumask_remove_table(&info->cpus); } static int mtk_cpufreq_init(struct cpufreq_policy *policy)
--
1.9.1