linux-kernel - [PATCH v4 0/2] cpufreq: qcom-fw: Add support for QCOM cpufreq FW driver

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Message-Id: <1528801355-18719-1-git-send-email-tdas@codeaurora.org>
Date:   Tue, 12 Jun 2018 16:32:33 +0530
From:   Taniya Das <tdas@...eaurora.org>
To:     "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        Stephen Boyd <sboyd@...nel.org>
Cc:     Rajendra Nayak <rnayak@...eaurora.org>, devicetree@...r.kernel.org,
        robh@...nel.org, skannan@...eaurora.org,
        Taniya Das <tdas@...eaurora.org>
Subject: [PATCH v4 0/2] cpufreq: qcom-fw: Add support for QCOM cpufreq FW driver

 [v4]
  * Fixed console messages as per comments.
  * Return error from qcom_resources_init()
    in the cases where failed to get frequency domain.
  * Rename cpu_dev to cpu_np in qcom_resources_init,
    qcom_get_related_cpus(). Also use temp variable freq_np in
    qcom_get_related_cpus().
  * Update qcom_cpufreq_fw_get() to use the policy data to incoporate
    the hotplug use case.
  * Update code to use of fast_switching.
  * Check for !c->max_cores instead of cpumask_empty in
    qcom_get_related_cpus().
  * Update the logic of assigning 'c' to qcom_freq_domain_map[cpu].

 [v3]
  * Remove index check from 'qcom_cpufreq_fw_target_index'.
  * Update the Documentation binding to add the platform specific properties in
    the CPU nodes, node name "qcom,freq-domain".
  * Update return value to '0' from -ENODEV from 'qcom_cpufreq_fw_get'.
  * Update the logic for boost frequency to use local variables instead of
    cpufreq driver data in 'qcom_read_lut'.
  * Update the logic in 'qcom_get_related_cpus' to find the related cpus.
  * Update the reg-names to remove "_base" and also update the binding with the
    description of these registers.
  * Update the logic in 'qcom_resources_init' to address the new device tree
    notation of handling the frequency domain phandles.

 [v2]
 * Fixed the alignment issues in "qcom_cpufreq_fw_target_index" for dev_err and
   also for "qcom_cpu_resources_init".
 * Removed ret = 0 from qcom_get_related_cpus and added to check for
   cpu_mask_empty to return -ENOENT.
 * Fixes qcom_cpu_resources_init function
   * Remove initialization of 'index'
   * Check for valid 'c'
 * Removed initialization of 'prev_cc' from 'qcom_read_lut'.
 * Remove initialization of 'ret' from function qcom_resources_init and add
   return -ENODEV based on 'of_get_available_child_count'.
 * Removed initialization of 'rc' from qcom_cpufreq_fw_driver_probe
 * Removed module_exit as this driver would not be used as module, also updated
   the Kconfig to bool from tristate.
 * Updated the subsystem in device tree bindings.

 [v1]
   * Fixed compilation reported by Amit K.

Taniya Das (2):
  dt-bindings: cpufreq: Introduce QCOM CPUFREQ FW bindings
  cpufreq: qcom-fw: Add support for QCOM cpufreq FW driver

 .../bindings/cpufreq/cpufreq-qcom-fw.txt           | 173 +++++++++++
 drivers/cpufreq/Kconfig.arm                        |   9 +
 drivers/cpufreq/Makefile                           |   1 +
 drivers/cpufreq/qcom-cpufreq-fw.c                  | 336 +++++++++++++++++++++
 4 files changed, 519 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-fw.txt
 create mode 100644 drivers/cpufreq/qcom-cpufreq-fw.c

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