ipq806x: remove support for kernel 4.14

[openwrt/openwrt.git] / target / linux / ipq806x / patches-4.14 / 0055-cpufreq-dt-Add-L2-frequency-scaling-support.patch

diff --git a/target/linux/ipq806x/patches-4.14/0055-cpufreq-dt-Add-L2-frequency-scaling-support.patch b/target/linux/ipq806x/patches-4.14/0055-cpufreq-dt-Add-L2-frequency-scaling-support.patch
deleted file mode 100644 (file)
index 1c26650..0000000
--- a/target/linux/ipq806x/patches-4.14/0055-cpufreq-dt-Add-L2-frequency-scaling-support.patch
+++ /dev/null
@@ -1,90 +0,0 @@
-From 0759cdff49f1cf361bf503c13f7bcb33da43ab95 Mon Sep 17 00:00:00 2001
-From: Georgi Djakov <georgi.djakov@linaro.org>
-Date: Tue, 8 Sep 2015 11:24:41 +0300
-Subject: [PATCH 55/69] cpufreq-dt: Add L2 frequency scaling support
-
-Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
----
- drivers/cpufreq/cpufreq-dt.c | 41 ++++++++++++++++++++++++++++++++++++++++-
- include/linux/cpufreq.h      |  2 ++
- 2 files changed, 42 insertions(+), 1 deletion(-)
-
---- a/drivers/cpufreq/cpufreq-dt.c
-+++ b/drivers/cpufreq/cpufreq-dt.c
-@@ -49,11 +49,41 @@ static int set_target(struct cpufreq_pol
-       struct private_data *priv = policy->driver_data;
-       int ret;
-       unsigned long target_freq = policy->freq_table[index].frequency * 1000;
-+      struct clk *l2_clk = policy->l2_clk;
-+      unsigned int l2_freq;
-+      unsigned long new_l2_freq = 0;
- 
-       mutex_lock(&priv->lock);
-       ret = dev_pm_opp_set_rate(priv->cpu_dev, target_freq);
--      if (!ret)
-+
-+      if (!ret) {
-+              if (!IS_ERR(l2_clk) && policy->l2_rate[0] && policy->l2_rate[1] &&
-+                              policy->l2_rate[2]) {
-+                      static unsigned long krait_l2[CONFIG_NR_CPUS] = { };
-+                      int cpu, ret = 0;
-+
-+                      if (target_freq >= policy->l2_rate[2])
-+                              new_l2_freq = policy->l2_rate[2];
-+                      else if (target_freq >= policy->l2_rate[1])
-+                              new_l2_freq = policy->l2_rate[1];
-+                      else
-+                              new_l2_freq = policy->l2_rate[0];
-+
-+                      krait_l2[policy->cpu] = new_l2_freq;
-+                      for_each_present_cpu(cpu)
-+                              new_l2_freq = max(new_l2_freq, krait_l2[cpu]);
-+
-+                      l2_freq = clk_get_rate(l2_clk);
-+
-+                      if (l2_freq != new_l2_freq) {
-+                              /* scale l2 with the core */
-+                              ret = clk_set_rate(l2_clk, new_l2_freq);
-+                      }
-+              }
-+
-               priv->opp_freq = target_freq;
-+      }
-+
-       mutex_unlock(&priv->lock);
- 
-       return ret;
-@@ -197,6 +227,8 @@ static int cpufreq_init(struct cpufreq_p
-       const char *name;
-       int ret;
-       struct srcu_notifier_head *opp_srcu_head;
-+      struct device_node *l2_np;
-+      struct clk *l2_clk = NULL;
- 
-       cpu_dev = get_cpu_device(policy->cpu);
-       if (!cpu_dev) {
-@@ -305,6 +337,13 @@ static int cpufreq_init(struct cpufreq_p
- 
-       policy->suspend_freq = dev_pm_opp_get_suspend_opp_freq(cpu_dev) / 1000;
- 
-+      l2_clk = clk_get(cpu_dev, "l2");
-+      if (!IS_ERR(l2_clk))
-+              policy->l2_clk = l2_clk;
-+      l2_np = of_find_node_by_name(NULL, "qcom,l2");
-+      if (l2_np)
-+              of_property_read_u32_array(l2_np, "qcom,l2-rates", policy->l2_rate, 3);
-+
-       ret = cpufreq_table_validate_and_show(policy, freq_table);
-       if (ret) {
-               dev_err(cpu_dev, "%s: invalid frequency table: %d\n", __func__,
---- a/include/linux/cpufreq.h
-+++ b/include/linux/cpufreq.h
-@@ -73,6 +73,8 @@ struct cpufreq_policy {
-       unsigned int            cpu;    /* cpu managing this policy, must be online */
- 
-       struct clk              *clk;
-+      struct clk              *l2_clk; /* L2 clock */
-+      unsigned int            l2_rate[3]; /* L2 bus clock rate thresholds */
-       struct cpufreq_cpuinfo  cpuinfo;/* see above */
- 
-       unsigned int            min;    /* in kHz */