cpufreq: dt: fix the warning occurred when upped cpu5 before cpu4
authorFinley Xiao <finley.xiao@rock-chips.com>
Mon, 12 Dec 2016 01:46:29 +0000 (09:46 +0800)
committerHuang, Tao <huangtao@rock-chips.com>
Mon, 12 Dec 2016 13:13:23 +0000 (21:13 +0800)
root@rk3399:/ # echo 0 > /sys/devices/system/cpu/cpu4/online
CPU4: shutdown
psci: CPU4 killed.
root@rk3399:/ # echo 0 > /sys/devices/system/cpu/cpu5/online
IRQ17 no longer affine to CPU5
CPU5: shutdown
psci: CPU5 killed.
root@rk3399:/ # echo 1 > /sys/devices/system/cpu/cpu5/online
Detected PIPT I-cache on CPU5
CPU5: found redistributor 101 region 0:0x00000000fefa0000
CPU5: update cpu_capacity 1024
CPU5: Booted secondary processor [410fd082]
cpu cpu5: opp_list_debug_create_link: Failed to create link
cpu cpu5: _add_opp_dev: Failed to register opp debugfs (-12)
cpu cpu5: dev_pm_opp_get_max_volt_latency: Invalid regulator (-6)

Change-Id: I9b066f9712b7f8426561e03a538a9a5c45138ab0
Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com>
drivers/cpufreq/cpufreq-dt.c

index 73d8102ff19d46ef40b297451b8d5ad55b4134bf..d5166b0f4576d3928e793c3a8ff043a910c9da6b 100644 (file)
@@ -149,6 +149,9 @@ static int cpufreq_init(struct cpufreq_policy *policy)
        struct device *cpu_dev;
        struct clk *cpu_clk;
        struct dev_pm_opp *suspend_opp;
+#ifdef CONFIG_ARCH_ROCKCHIP
+       struct cpumask cpus;
+#endif
        unsigned int transition_latency;
        bool opp_v1 = false;
        const char *name;
@@ -204,7 +207,20 @@ static int cpufreq_init(struct cpufreq_policy *policy)
         *
         * OPPs might be populated at runtime, don't check for error here
         */
+#ifdef CONFIG_ARCH_ROCKCHIP
+       ret = dev_pm_opp_of_add_table(cpu_dev);
+       if (ret) {
+               dev_err(cpu_dev, "couldn't find opp table for cpu:%d, %d\n",
+                       policy->cpu, ret);
+       } else {
+               cpumask_copy(&cpus, policy->cpus);
+               cpumask_clear_cpu(policy->cpu, &cpus);
+               if (dev_pm_opp_of_cpumask_add_table(&cpus))
+                       dev_pm_opp_of_remove_table(cpu_dev);
+       }
+#else
        dev_pm_opp_of_cpumask_add_table(policy->cpus);
+#endif
 
        /*
         * But we need OPP table to function so if it is not there let's