diff options
| author | Viresh Kumar <viresh.kumar@linaro.org> | 2014-08-28 09:52:30 +0400 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-09-09 03:44:41 +0400 |
| commit | 95b6105835293a910484c5bcdd1599b8588959e9 (patch) | |
| tree | 0f91f300fa4851398a26ffe80e9150257bfce4ce /drivers/cpufreq | |
| parent | 2d2c5e0e72546c1b4375ff5820ca8016c7123cbb (diff) | |
| download | linux-95b6105835293a910484c5bcdd1599b8588959e9.tar.xz | |
cpufreq: cpu0: Make allocate_resources() work for any CPU
Currently allocate_resources() supports only CPU0 and it would need to allocate
resources for any CPU going forward.
Add another argument to it, i.e. cpu, and update code accordingly.
Tested-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpufreq')
| -rw-r--r-- | drivers/cpufreq/cpufreq-cpu0.c | 30 |
1 files changed, 17 insertions, 13 deletions
diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c index de38952dab1a..a5f8c5f5f4f4 100644 --- a/drivers/cpufreq/cpufreq-cpu0.c +++ b/drivers/cpufreq/cpufreq-cpu0.c @@ -106,7 +106,7 @@ static int cpu0_set_target(struct cpufreq_policy *policy, unsigned int index) return ret; } -static int allocate_resources(struct device **cdev, +static int allocate_resources(int cpu, struct device **cdev, struct regulator **creg, struct clk **cclk) { struct device *cpu_dev; @@ -115,24 +115,28 @@ static int allocate_resources(struct device **cdev, int ret = 0; char *reg_cpu0 = "cpu0", *reg_cpu = "cpu", *reg; - cpu_dev = get_cpu_device(0); + cpu_dev = get_cpu_device(cpu); if (!cpu_dev) { - pr_err("failed to get cpu0 device\n"); + pr_err("failed to get cpu%d device\n", cpu); return -ENODEV; } /* Try "cpu0" for older DTs */ - reg = reg_cpu0; + if (!cpu) + reg = reg_cpu0; + else + reg = reg_cpu; try_again: cpu_reg = regulator_get_optional(cpu_dev, reg); if (IS_ERR(cpu_reg)) { /* - * If cpu0 regulator supply node is present, but regulator is + * If cpu's regulator supply node is present, but regulator is * not yet registered, we should try defering probe. */ if (PTR_ERR(cpu_reg) == -EPROBE_DEFER) { - dev_dbg(cpu_dev, "cpu0 regulator not ready, retry\n"); + dev_dbg(cpu_dev, "cpu%d regulator not ready, retry\n", + cpu); return -EPROBE_DEFER; } @@ -142,8 +146,8 @@ try_again: goto try_again; } - dev_warn(cpu_dev, "failed to get cpu0 regulator: %ld\n", - PTR_ERR(cpu_reg)); + dev_warn(cpu_dev, "failed to get cpu%d regulator: %ld\n", + cpu, PTR_ERR(cpu_reg)); } cpu_clk = clk_get(cpu_dev, NULL); @@ -159,9 +163,10 @@ try_again: * registered, we should try defering probe. */ if (ret == -EPROBE_DEFER) - dev_dbg(cpu_dev, "cpu0 clock not ready, retry\n"); + dev_dbg(cpu_dev, "cpu%d clock not ready, retry\n", cpu); else - dev_err(cpu_dev, "failed to get cpu0 clock: %d\n", ret); + dev_err(cpu_dev, "failed to get cpu%d clock: %d\n", ret, + cpu); } else { *cdev = cpu_dev; *creg = cpu_reg; @@ -183,8 +188,7 @@ static int cpu0_cpufreq_init(struct cpufreq_policy *policy) unsigned int transition_latency; int ret; - /* We only support cpu0 currently */ - ret = allocate_resources(&cpu_dev, &cpu_reg, &cpu_clk); + ret = allocate_resources(policy->cpu, &cpu_dev, &cpu_reg, &cpu_clk); if (ret) { pr_err("%s: Failed to allocate resources\n: %d", __func__, ret); return ret; @@ -322,7 +326,7 @@ static int cpu0_cpufreq_probe(struct platform_device *pdev) * * FIXME: Is checking this only for CPU0 sufficient ? */ - ret = allocate_resources(&cpu_dev, &cpu_reg, &cpu_clk); + ret = allocate_resources(0, &cpu_dev, &cpu_reg, &cpu_clk); if (ret) return ret; |