devicetree.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Sricharan R <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
Subject: [PATCH v4 12/12] cpufreq: dt: Reintroduce independent_clocks platform data
Date: Fri,  8 Dec 2017 15:12:30 +0530	[thread overview]
Message-ID: <1512726150-7204-13-git-send-email-sricharan@codeaurora.org> (raw)
In-Reply-To: <1512726150-7204-1-git-send-email-sricharan@codeaurora.org>

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(-)

diff --git a/drivers/cpufreq/cpufreq-dt.c b/drivers/cpufreq/cpufreq-dt.c
index 545946a..8f0e881 100644
--- a/drivers/cpufreq/cpufreq-dt.c
+++ b/drivers/cpufreq/cpufreq-dt.c
@@ -228,7 +228,10 @@ static int cpufreq_init(struct cpufreq_policy *policy)
 	}
 
 	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
@@ -380,6 +383,8 @@ static int dt_cpufreq_probe(struct platform_device *pdev)
 	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);
diff --git a/drivers/cpufreq/cpufreq-dt.h b/drivers/cpufreq/cpufreq-dt.h
index 54d774e..dcc03c6 100644
--- 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;
 };
 
-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation

  parent reply	other threads:[~2017-12-08  9:42 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-08  9:42 [RESEND PATCH v4 00/12] Krait clocks + Krait CPUfreq Sricharan R
2017-12-08  9:42 ` [PATCH v4 01/12] ARM: Add Krait L2 register accessor functions Sricharan R
2017-12-08  9:42 ` [PATCH v4 02/12] clk: mux: Split out register accessors for reuse Sricharan R
2017-12-08  9:42 ` [PATCH v4 03/12] clk: qcom: Add support for High-Frequency PLLs (HFPLLs) Sricharan R
2017-12-08  9:42 ` [PATCH v4 04/12] clk: qcom: Add HFPLL driver Sricharan R
2017-12-12 20:35   ` Rob Herring
2017-12-13 11:10     ` Sricharan R
2017-12-08  9:42 ` [PATCH v4 05/12] clk: qcom: Add MSM8960/APQ8064's HFPLLs Sricharan R
2017-12-12 20:36   ` Rob Herring
2017-12-13 11:10     ` Sricharan R
2017-12-08  9:42 ` [PATCH v4 06/12] clk: qcom: Add IPQ806X's HFPLLs Sricharan R
2017-12-08  9:42 ` [PATCH v4 07/12] clk: qcom: Add support for Krait clocks Sricharan R
2017-12-08  9:42 ` [PATCH v4 08/12] clk: qcom: Add KPSS ACC/GCC driver Sricharan R
2017-12-12 20:38   ` Rob Herring
2017-12-13 11:42     ` Sricharan R
2017-12-08  9:42 ` [PATCH v4 09/12] clk: qcom: Add Krait clock controller driver Sricharan R
2017-12-12 20:51   ` Rob Herring
2017-12-13 11:11     ` Sricharan R
     [not found] ` <1512726150-7204-1-git-send-email-sricharan-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2017-12-08  9:42   ` [PATCH v4 10/12] clk: qcom: Add safe switch hook for krait mux clocks Sricharan R
2017-12-08  9:42 ` [PATCH v4 11/12] cpufreq: Add module to register cpufreq on Krait CPUs Sricharan R
2017-12-11  8:39   ` Viresh Kumar
2017-12-11 13:22     ` Sricharan R
2017-12-08  9:42 ` Sricharan R [this message]
2017-12-11  8:33   ` [PATCH v4 12/12] cpufreq: dt: Reintroduce independent_clocks platform data Viresh Kumar
2017-12-11 13:24     ` Sricharan R
  -- strict thread matches above, loose matches on Subject: below --
2017-12-08  9:29 [PATCH v4 00/12] Krait clocks + Krait CPUfreq Sricharan R
2017-12-08  9:30 ` [PATCH v4 12/12] cpufreq: dt: Reintroduce independent_clocks platform data Sricharan R

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1512726150-7204-13-git-send-email-sricharan@codeaurora.org \
    --to=sricharan@codeaurora.org \
    --cc=devicetree@vger.kernel.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-arm-msm@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-pm@vger.kernel.org \
    --cc=mturquette@baylibre.com \
    --cc=sboyd@codeaurora.org \
    --cc=viresh.kumar@linaro.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).