ipq806x: add kernel 4.14 support

[openwrt/staging/chunkeey.git] / target / linux / ipq806x / patches-4.14 / 0046-cpufreq-qcom-independent-core-clocks.patch

diff --git a/target/linux/ipq806x/patches-4.14/0046-cpufreq-qcom-independent-core-clocks.patch b/target/linux/ipq806x/patches-4.14/0046-cpufreq-qcom-independent-core-clocks.patch
new file mode 100644 (file)
index 0000000..d7211e1
--- /dev/null
+++ b/target/linux/ipq806x/patches-4.14/0046-cpufreq-qcom-independent-core-clocks.patch
@@ -0,0 +1,65 @@
+From patchwork Fri Dec  8 09:42:30 2017
+Content-Type: text/plain; charset="utf-8"
+MIME-Version: 1.0
+Content-Transfer-Encoding: 7bit
+Subject: [v4,12/12] cpufreq: dt: Reintroduce independent_clocks platform data
+From: Sricharan R <sricharan@codeaurora.org>
+X-Patchwork-Id: 10102073
+Message-Id: <1512726150-7204-13-git-send-email-sricharan@codeaurora.org>
+To: mturquette@baylibre.com, sboyd@codeaurora.org,
+ devicetree@vger.kernel.org, linux-pm@vger.kernel.org,
+ linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org,
+ viresh.kumar@linaro.org, linux-arm-kernel@lists.infradead.org
+Cc: sricharan@codeaurora.org
+Date: Fri,  8 Dec 2017 15:12:30 +0530
+
+The Platform data was removed earlier by,
+'commit eb96924acddc ("cpufreq: dt: Kill platform-data")'
+since there were no users at that time.
+Now this is required when the each of the cpu clocks
+can be scaled independently, which is the case
+for krait cores. So reintroduce it.
+
+Signed-off-by: Sricharan R <sricharan@codeaurora.org>
+---
+ drivers/cpufreq/cpufreq-dt.c | 7 ++++++-
+ drivers/cpufreq/cpufreq-dt.h | 6 ++++++
+ 2 files changed, 12 insertions(+), 1 deletion(-)
+
+--- a/drivers/cpufreq/cpufreq-dt.c
++++ b/drivers/cpufreq/cpufreq-dt.c
+@@ -220,7 +220,10 @@ static int cpufreq_init(struct cpufreq_p
+       }
+
+       if (fallback) {
+-              cpumask_setall(policy->cpus);
++              struct cpufreq_dt_platform_data *pd = cpufreq_get_driver_data();
++
++              if (!pd || !pd->independent_clocks)
++                      cpumask_setall(policy->cpus);
+
+               /*
+                * OPP tables are initialized only for policy->cpu, do it for
+@@ -372,6 +375,8 @@ static int dt_cpufreq_probe(struct platf
+       if (data && data->have_governor_per_policy)
+               dt_cpufreq_driver.flags |= CPUFREQ_HAVE_GOVERNOR_PER_POLICY;
+
++      dt_cpufreq_driver.driver_data = data;
++
+       ret = cpufreq_register_driver(&dt_cpufreq_driver);
+       if (ret)
+               dev_err(&pdev->dev, "failed register driver: %d\n", ret);
+--- a/drivers/cpufreq/cpufreq-dt.h
++++ b/drivers/cpufreq/cpufreq-dt.h
+@@ -13,6 +13,12 @@
+ #include <linux/types.h>
+
+ struct cpufreq_dt_platform_data {
++      /*
++       * True when each CPU has its own clock to control its
++       * frequency, false when all CPUs are controlled by a single
++       * clock.
++       */
++      bool independent_clocks;
+       bool have_governor_per_policy;
+ };