[PATCH V2 00/30] OPP: Add new configuration interface: dev_pm_opp_set_config()

[PATCH V2 00/30] OPP: Add new configuration interface: dev_pm_opp_set_config()

[Viresh Kumar]

Hello,

We have too many configuration specific APIs currently, six of them already,
like dev_pm_opp_set_regulators(). This makes it complex/messy for both the OPP
core and its users to manage. There is also code redundancy in these APIs, in
the way they add/manage the OPP table specific stuff.

This patch series is an attempt to simplify these interfaces by adding a single
interface, dev_pm_opp_set_config(), which replaces all the existing ones. This
series also migrates the users to the new API.

The first two patches help get the API in place, followed by patches to migrate
the end users. Once all the users are migrated, the last few patches remove the
now unused interfaces.

This is pushed here:

git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm.git opp/linux-next

This is already tested by various folks now.

The entire patchset shall get merged via the OPP tree in 5.20-rc1, please do not
merge individual patches.

V1->V2:
- dev_pm_opp_set_config() doesn't return the OPP table anymore, but a token
  allocated with xa_alloc(). The same needs to be passed to clear-config API.
- Updated all users according to that as well.
- The clk_names interface is updated to allow multiple clocks.
- Converted few // comments to /* */.
- Added tags by few people.
- Dropped the last patch to rearrange stuff, not required anymore.

Thanks.

--
Viresh

Viresh Kumar (30):
  OPP: Track if clock name is configured by platform
  OPP: Add dev_pm_opp_set_config() and friends
  cpufreq: dt: Migrate to dev_pm_opp_set_config()
  cpufreq: imx: Migrate to dev_pm_opp_set_config()
  cpufreq: qcom-nvmem: Migrate to dev_pm_opp_set_config()
  cpufreq: sti: Migrate to dev_pm_opp_set_config()
  cpufreq: sun50i: Migrate to dev_pm_opp_set_config()
  cpufreq: tegra20: Migrate to dev_pm_opp_set_config()
  cpufreq: ti: Migrate to dev_pm_opp_set_config()
  devfreq: exynos: Migrate to dev_pm_opp_set_config()
  devfreq: sun8i: Migrate to dev_pm_opp_set_config()
  devfreq: tegra30: Migrate to dev_pm_opp_set_config()
  drm/lima: Migrate to dev_pm_opp_set_config()
  drm/msm: Migrate to dev_pm_opp_set_config()
  drm/panfrost: Migrate to dev_pm_opp_set_config()
  drm/tegra: Migrate to dev_pm_opp_set_config()
  media: venus: Migrate to dev_pm_opp_set_config()
  memory: tegra: Migrate to dev_pm_opp_set_config()
  mmc: sdhci-msm: Migrate to dev_pm_opp_set_config()
  OPP: ti: Migrate to dev_pm_opp_set_config()
  soc/tegra: Add comment over devm_pm_opp_set_clkname()
  soc/tegra: Migrate to dev_pm_opp_set_config()
  spi: qcom: Migrate to dev_pm_opp_set_config()
  serial: qcom: Migrate to dev_pm_opp_set_config()
  OPP: Remove dev_pm_opp_set_regulators() and friends
  OPP: Remove dev_pm_opp_set_supported_hw() and friends
  OPP: Remove dev_pm_opp_set_clkname() and friends
  OPP: Remove dev_pm_opp_register_set_opp_helper() and friends
  OPP: Remove dev_pm_opp_attach_genpd() and friends
  OPP: Remove dev_pm_opp_set_prop_name() and friends

 drivers/cpufreq/cpufreq-dt.c                  |  20 +-
 drivers/cpufreq/imx-cpufreq-dt.c              |  18 +-
 drivers/cpufreq/qcom-cpufreq-nvmem.c          | 109 +--
 drivers/cpufreq/sti-cpufreq.c                 |  27 +-
 drivers/cpufreq/sun50i-cpufreq-nvmem.c        |  36 +-
 drivers/cpufreq/tegra20-cpufreq.c             |  18 +-
 drivers/cpufreq/ti-cpufreq.c                  |  38 +-
 drivers/devfreq/exynos-bus.c                  |  25 +-
 drivers/devfreq/sun8i-a33-mbus.c              |   8 +-
 drivers/devfreq/tegra30-devfreq.c             |   8 +-
 drivers/gpu/drm/lima/lima_devfreq.c           |  12 +-
 drivers/gpu/drm/msm/adreno/a5xx_gpu.c         |   8 +-
 drivers/gpu/drm/msm/adreno/a6xx_gpu.c         |  10 +-
 drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c       |   6 +-
 drivers/gpu/drm/msm/dp/dp_ctrl.c              |   6 +-
 drivers/gpu/drm/msm/dsi/dsi_host.c            |   6 +-
 drivers/gpu/drm/panfrost/panfrost_devfreq.c   |   9 +-
 drivers/gpu/drm/tegra/gr3d.c                  |   6 +-
 .../media/platform/qcom/venus/pm_helpers.c    |  18 +-
 drivers/memory/tegra/tegra124-emc.c           |  17 +-
 drivers/mmc/host/sdhci-msm.c                  |   6 +-
 drivers/opp/core.c                            | 632 ++++++++----------
 drivers/opp/opp.h                             |  23 +
 drivers/opp/ti-opp-supply.c                   |   8 +-
 drivers/soc/tegra/common.c                    |  45 +-
 drivers/soc/tegra/pmc.c                       |   8 +-
 drivers/spi/spi-geni-qcom.c                   |   6 +-
 drivers/spi/spi-qcom-qspi.c                   |   6 +-
 drivers/tty/serial/qcom_geni_serial.c         |   6 +-
 include/linux/pm_opp.h                        | 121 +---
 30 files changed, 605 insertions(+), 661 deletions(-)

-- 
2.31.1.272.g89b43f80a514

[PATCH V2 00/30] OPP: Add new configuration interface: dev_pm_opp_set_config()

[Viresh Kumar]

Hello,

We have too many configuration specific APIs currently, six of them already,
like dev_pm_opp_set_regulators(). This makes it complex/messy for both the OPP
core and its users to manage. There is also code redundancy in these APIs, in
the way they add/manage the OPP table specific stuff.

This patch series is an attempt to simplify these interfaces by adding a single
interface, dev_pm_opp_set_config(), which replaces all the existing ones. This
series also migrates the users to the new API.

The first two patches help get the API in place, followed by patches to migrate
the end users. Once all the users are migrated, the last few patches remove the
now unused interfaces.

This is pushed here:

git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm.git opp/linux-next

This is already tested by various folks now.

The entire patchset shall get merged via the OPP tree in 5.20-rc1, please do not
merge individual patches.

V1->V2:
- dev_pm_opp_set_config() doesn't return the OPP table anymore, but a token
  allocated with xa_alloc(). The same needs to be passed to clear-config API.
- Updated all users according to that as well.
- The clk_names interface is updated to allow multiple clocks.
- Converted few // comments to /* */.
- Added tags by few people.
- Dropped the last patch to rearrange stuff, not required anymore.

Thanks.

--
Viresh

Viresh Kumar (30):
  OPP: Track if clock name is configured by platform
  OPP: Add dev_pm_opp_set_config() and friends
  cpufreq: dt: Migrate to dev_pm_opp_set_config()
  cpufreq: imx: Migrate to dev_pm_opp_set_config()
  cpufreq: qcom-nvmem: Migrate to dev_pm_opp_set_config()
  cpufreq: sti: Migrate to dev_pm_opp_set_config()
  cpufreq: sun50i: Migrate to dev_pm_opp_set_config()
  cpufreq: tegra20: Migrate to dev_pm_opp_set_config()
  cpufreq: ti: Migrate to dev_pm_opp_set_config()
  devfreq: exynos: Migrate to dev_pm_opp_set_config()
  devfreq: sun8i: Migrate to dev_pm_opp_set_config()
  devfreq: tegra30: Migrate to dev_pm_opp_set_config()
  drm/lima: Migrate to dev_pm_opp_set_config()
  drm/msm: Migrate to dev_pm_opp_set_config()
  drm/panfrost: Migrate to dev_pm_opp_set_config()
  drm/tegra: Migrate to dev_pm_opp_set_config()
  media: venus: Migrate to dev_pm_opp_set_config()
  memory: tegra: Migrate to dev_pm_opp_set_config()
  mmc: sdhci-msm: Migrate to dev_pm_opp_set_config()
  OPP: ti: Migrate to dev_pm_opp_set_config()
  soc/tegra: Add comment over devm_pm_opp_set_clkname()
  soc/tegra: Migrate to dev_pm_opp_set_config()
  spi: qcom: Migrate to dev_pm_opp_set_config()
  serial: qcom: Migrate to dev_pm_opp_set_config()
  OPP: Remove dev_pm_opp_set_regulators() and friends
  OPP: Remove dev_pm_opp_set_supported_hw() and friends
  OPP: Remove dev_pm_opp_set_clkname() and friends
  OPP: Remove dev_pm_opp_register_set_opp_helper() and friends
  OPP: Remove dev_pm_opp_attach_genpd() and friends
  OPP: Remove dev_pm_opp_set_prop_name() and friends

 drivers/cpufreq/cpufreq-dt.c                  |  20 +-
 drivers/cpufreq/imx-cpufreq-dt.c              |  18 +-
 drivers/cpufreq/qcom-cpufreq-nvmem.c          | 109 +--
 drivers/cpufreq/sti-cpufreq.c                 |  27 +-
 drivers/cpufreq/sun50i-cpufreq-nvmem.c        |  36 +-
 drivers/cpufreq/tegra20-cpufreq.c             |  18 +-
 drivers/cpufreq/ti-cpufreq.c                  |  38 +-
 drivers/devfreq/exynos-bus.c                  |  25 +-
 drivers/devfreq/sun8i-a33-mbus.c              |   8 +-
 drivers/devfreq/tegra30-devfreq.c             |   8 +-
 drivers/gpu/drm/lima/lima_devfreq.c           |  12 +-
 drivers/gpu/drm/msm/adreno/a5xx_gpu.c         |   8 +-
 drivers/gpu/drm/msm/adreno/a6xx_gpu.c         |  10 +-
 drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c       |   6 +-
 drivers/gpu/drm/msm/dp/dp_ctrl.c              |   6 +-
 drivers/gpu/drm/msm/dsi/dsi_host.c            |   6 +-
 drivers/gpu/drm/panfrost/panfrost_devfreq.c   |   9 +-
 drivers/gpu/drm/tegra/gr3d.c                  |   6 +-
 .../media/platform/qcom/venus/pm_helpers.c    |  18 +-
 drivers/memory/tegra/tegra124-emc.c           |  17 +-
 drivers/mmc/host/sdhci-msm.c                  |   6 +-
 drivers/opp/core.c                            | 632 ++++++++----------
 drivers/opp/opp.h                             |  23 +
 drivers/opp/ti-opp-supply.c                   |   8 +-
 drivers/soc/tegra/common.c                    |  45 +-
 drivers/soc/tegra/pmc.c                       |   8 +-
 drivers/spi/spi-geni-qcom.c                   |   6 +-
 drivers/spi/spi-qcom-qspi.c                   |   6 +-
 drivers/tty/serial/qcom_geni_serial.c         |   6 +-
 include/linux/pm_opp.h                        | 121 +---
 30 files changed, 605 insertions(+), 661 deletions(-)

-- 
2.31.1.272.g89b43f80a514

[PATCH V2 01/30] OPP: Track if clock name is configured by platform

[Viresh Kumar]

Track if the clock name is configured by the platform or not. This is a
preparatory change and will be used by later commits. This also makes
the behavior of the clkname API similar to other ones, which allow
repeated calls to the same API for each CPU.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/opp/core.c | 7 +++++++
 drivers/opp/opp.h  | 2 ++
 2 files changed, 9 insertions(+)

diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index b2715950e76d..e166bfe5fc90 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -2277,6 +2277,10 @@ struct opp_table *dev_pm_opp_set_clkname(struct device *dev, const char *name)
 		goto err;
 	}
 
+	/* Another CPU that shares the OPP table has set the clkname ? */
+	if (opp_table->clk_configured)
+		return opp_table;
+
 	/* clk shouldn't be initialized at this point */
 	if (WARN_ON(opp_table->clk)) {
 		ret = -EBUSY;
@@ -2291,6 +2295,8 @@ struct opp_table *dev_pm_opp_set_clkname(struct device *dev, const char *name)
 		goto err;
 	}
 
+	opp_table->clk_configured = true;
+
 	return opp_table;
 
 err:
@@ -2311,6 +2317,7 @@ void dev_pm_opp_put_clkname(struct opp_table *opp_table)
 
 	clk_put(opp_table->clk);
 	opp_table->clk = ERR_PTR(-EINVAL);
+	opp_table->clk_configured = false;
 
 	dev_pm_opp_put_opp_table(opp_table);
 }
diff --git a/drivers/opp/opp.h b/drivers/opp/opp.h
index 45e3a55239a1..9e1cfcb0ea98 100644
--- a/drivers/opp/opp.h
+++ b/drivers/opp/opp.h
@@ -149,6 +149,7 @@ enum opp_table_access {
  * @supported_hw: Array of version number to support.
  * @supported_hw_count: Number of elements in supported_hw array.
  * @prop_name: A name to postfix to many DT properties, while parsing them.
+ * @clk_configured: Clock name is configured by the platform.
  * @clk: Device's clock handle
  * @regulators: Supply regulators
  * @regulator_count: Number of power supply regulators. Its value can be -1
@@ -200,6 +201,7 @@ struct opp_table {
 	unsigned int *supported_hw;
 	unsigned int supported_hw_count;
 	const char *prop_name;
+	bool clk_configured;
 	struct clk *clk;
 	struct regulator **regulators;
 	int regulator_count;
-- 
2.31.1.272.g89b43f80a514

[PATCH V2 02/30] OPP: Add dev_pm_opp_set_config() and friends

[Viresh Kumar]

The OPP core already have few configuration specific APIs and it is
getting complex or messy for both the OPP core and its users.

Lets introduce a new set of API which will be used for all kind of
different configurations, and shall eventually replace all the existing
ones.

The new API, returns a unique token instead of a pointer to the OPP
table, which allows the OPP core to drop the resources selectively later
on.

Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/opp/core.c     | 214 ++++++++++++++++++++++++++++++++++++++++-
 drivers/opp/opp.h      |  21 ++++
 include/linux/pm_opp.h |  45 +++++++++
 3 files changed, 279 insertions(+), 1 deletion(-)

diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index e166bfe5fc90..c77ea05ee2cd 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -13,11 +13,12 @@
 #include <linux/clk.h>
 #include <linux/errno.h>
 #include <linux/err.h>
-#include <linux/slab.h>
 #include <linux/device.h>
 #include <linux/export.h>
 #include <linux/pm_domain.h>
 #include <linux/regulator/consumer.h>
+#include <linux/slab.h>
+#include <linux/xarray.h>
 
 #include "opp.h"
 
@@ -36,6 +37,9 @@ DEFINE_MUTEX(opp_table_lock);
 /* Flag indicating that opp_tables list is being updated at the moment */
 static bool opp_tables_busy;
 
+/* OPP ID allocator */
+static DEFINE_XARRAY_ALLOC1(opp_configs);
+
 static bool _find_opp_dev(const struct device *dev, struct opp_table *opp_table)
 {
 	struct opp_device *opp_dev;
@@ -2618,6 +2622,214 @@ int devm_pm_opp_attach_genpd(struct device *dev, const char * const *names,
 }
 EXPORT_SYMBOL_GPL(devm_pm_opp_attach_genpd);
 
+static void _opp_clear_config(struct opp_config_data *data)
+{
+	if (data->flags & OPP_CONFIG_GENPD)
+		dev_pm_opp_detach_genpd(data->opp_table);
+	if (data->flags & OPP_CONFIG_REGULATOR)
+		dev_pm_opp_put_regulators(data->opp_table);
+	if (data->flags & OPP_CONFIG_SUPPORTED_HW)
+		dev_pm_opp_put_supported_hw(data->opp_table);
+	if (data->flags & OPP_CONFIG_REGULATOR_HELPER)
+		dev_pm_opp_unregister_set_opp_helper(data->opp_table);
+	if (data->flags & OPP_CONFIG_PROP_NAME)
+		dev_pm_opp_put_prop_name(data->opp_table);
+	if (data->flags & OPP_CONFIG_CLK)
+		dev_pm_opp_put_clkname(data->opp_table);
+
+	dev_pm_opp_put_opp_table(data->opp_table);
+	kfree(data);
+}
+
+/**
+ * dev_pm_opp_set_config() - Set OPP configuration for the device.
+ * @dev: Device for which configuration is being set.
+ * @config: OPP configuration.
+ *
+ * This allows all device OPP configurations to be performed at once.
+ *
+ * This must be called before any OPPs are initialized for the device. This may
+ * be called multiple times for the same OPP table, for example once for each
+ * CPU that share the same table. This must be balanced by the same number of
+ * calls to dev_pm_opp_clear_config() in order to free the OPP table properly.
+ *
+ * This returns a token to the caller, which must be passed to
+ * dev_pm_opp_clear_config() to free the resources later. The value of the
+ * returned token will be >= 1 for success and negative for errors. The minimum
+ * value of 1 is chosen here to make it easy for callers to manage the resource.
+ */
+int dev_pm_opp_set_config(struct device *dev, struct dev_pm_opp_config *config)
+{
+	struct opp_table *opp_table, *err;
+	struct opp_config_data *data;
+	unsigned int id;
+	int ret;
+
+	data = kmalloc(sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	opp_table = _add_opp_table(dev, false);
+	if (IS_ERR(opp_table)) {
+		kfree(data);
+		return PTR_ERR(opp_table);
+	}
+
+	data->opp_table = opp_table;
+	data->flags = 0;
+
+	/* This should be called before OPPs are initialized */
+	if (WARN_ON(!list_empty(&opp_table->opp_list))) {
+		ret = -EBUSY;
+		goto err;
+	}
+
+	/* Configure clocks */
+	if (config->clk_names) {
+		/* We support only one clock name for now */
+		if (config->clk_count != 1) {
+			ret = -EINVAL;
+			goto err;
+		}
+
+		err = dev_pm_opp_set_clkname(dev, config->clk_names[0]);
+		if (IS_ERR(err)) {
+			ret = PTR_ERR(err);
+			goto err;
+		}
+
+		data->flags |= OPP_CONFIG_CLK;
+	}
+
+	/* Configure property names */
+	if (config->prop_name) {
+		err = dev_pm_opp_set_prop_name(dev, config->prop_name);
+		if (IS_ERR(err)) {
+			ret = PTR_ERR(err);
+			goto err;
+		}
+
+		data->flags |= OPP_CONFIG_PROP_NAME;
+	}
+
+	/* Configure opp helper */
+	if (config->set_opp) {
+		err = dev_pm_opp_register_set_opp_helper(dev, config->set_opp);
+		if (IS_ERR(err)) {
+			ret = PTR_ERR(err);
+			goto err;
+		}
+
+		data->flags |= OPP_CONFIG_REGULATOR_HELPER;
+	}
+
+	/* Configure supported hardware */
+	if (config->supported_hw) {
+		err = dev_pm_opp_set_supported_hw(dev, config->supported_hw,
+						  config->supported_hw_count);
+		if (IS_ERR(err)) {
+			ret = PTR_ERR(err);
+			goto err;
+		}
+
+		data->flags |= OPP_CONFIG_SUPPORTED_HW;
+	}
+
+	/* Configure supplies */
+	if (config->regulator_names) {
+		err = dev_pm_opp_set_regulators(dev, config->regulator_names,
+						config->regulator_count);
+		if (IS_ERR(err)) {
+			ret = PTR_ERR(err);
+			goto err;
+		}
+
+		data->flags |= OPP_CONFIG_REGULATOR;
+	}
+
+	/* Attach genpds */
+	if (config->genpd_names) {
+		err = dev_pm_opp_attach_genpd(dev, config->genpd_names,
+					      config->virt_devs);
+		if (IS_ERR(err)) {
+			ret = PTR_ERR(err);
+			goto err;
+		}
+
+		data->flags |= OPP_CONFIG_GENPD;
+	}
+
+	ret = xa_alloc(&opp_configs, &id, data, XA_LIMIT(1, INT_MAX),
+		       GFP_KERNEL);
+	if (ret)
+		goto err;
+
+	return id;
+
+err:
+	_opp_clear_config(data);
+	return ret;
+}
+EXPORT_SYMBOL_GPL(dev_pm_opp_set_config);
+
+/**
+ * dev_pm_opp_clear_config() - Releases resources blocked for OPP configuration.
+ * @opp_table: OPP table returned from dev_pm_opp_set_config().
+ *
+ * This allows all device OPP configurations to be cleared at once. This must be
+ * called once for each call made to dev_pm_opp_set_config(), in order to free
+ * the OPPs properly.
+ *
+ * Currently the first call itself ends up freeing all the OPP configurations,
+ * while the later ones only drop the OPP table reference. This works well for
+ * now as we would never want to use an half initialized OPP table and want to
+ * remove the configurations together.
+ */
+void dev_pm_opp_clear_config(int token)
+{
+	struct opp_config_data *data;
+
+	/*
+	 * This lets the callers call this unconditionally and keep their code
+	 * simple.
+	 */
+	if (unlikely(token <= 0))
+		return;
+
+	data = xa_erase(&opp_configs, token);
+	if (WARN_ON(!data))
+		return;
+
+	_opp_clear_config(data);
+}
+EXPORT_SYMBOL_GPL(dev_pm_opp_clear_config);
+
+static void devm_pm_opp_config_release(void *token)
+{
+	dev_pm_opp_clear_config((unsigned long)token);
+}
+
+/**
+ * devm_pm_opp_set_config() - Set OPP configuration for the device.
+ * @dev: Device for which configuration is being set.
+ * @config: OPP configuration.
+ *
+ * This allows all device OPP configurations to be performed at once.
+ * This is a resource-managed variant of dev_pm_opp_set_config().
+ *
+ * Return: 0 on success and errorno otherwise.
+ */
+int devm_pm_opp_set_config(struct device *dev, struct dev_pm_opp_config *config)
+{
+	int token = dev_pm_opp_set_config(dev, config);
+	if (token < 0)
+		return token;
+
+	return devm_add_action_or_reset(dev, devm_pm_opp_config_release,
+					(void *) ((unsigned long) token));
+}
+EXPORT_SYMBOL_GPL(devm_pm_opp_set_config);
+
 /**
  * dev_pm_opp_xlate_required_opp() - Find required OPP for @src_table OPP.
  * @src_table: OPP table which has @dst_table as one of its required OPP table.
diff --git a/drivers/opp/opp.h b/drivers/opp/opp.h
index 9e1cfcb0ea98..d652f0cc84f1 100644
--- a/drivers/opp/opp.h
+++ b/drivers/opp/opp.h
@@ -28,6 +28,27 @@ extern struct mutex opp_table_lock;
 
 extern struct list_head opp_tables, lazy_opp_tables;
 
+/* OPP Config flags */
+#define OPP_CONFIG_CLK			BIT(0)
+#define OPP_CONFIG_REGULATOR		BIT(1)
+#define OPP_CONFIG_REGULATOR_HELPER	BIT(2)
+#define OPP_CONFIG_PROP_NAME		BIT(3)
+#define OPP_CONFIG_SUPPORTED_HW		BIT(4)
+#define OPP_CONFIG_GENPD		BIT(5)
+
+/**
+ * struct opp_config_data - data for set config operations
+ * @opp_table: OPP table
+ * @flags: OPP config flags
+ *
+ * This structure stores the OPP config information for each OPP table
+ * configuration by the callers.
+ */
+struct opp_config_data {
+	struct opp_table *opp_table;
+	unsigned int flags;
+};
+
 /*
  * Internal data structure organization with the OPP layer library is as
  * follows:
diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h
index 6708b4ec244d..467bed35130e 100644
--- a/include/linux/pm_opp.h
+++ b/include/linux/pm_opp.h
@@ -90,6 +90,35 @@ struct dev_pm_set_opp_data {
 	struct device *dev;
 };
 
+/**
+ * struct dev_pm_opp_config - Device OPP configuration values
+ * @clk_names: Clk name.
+ * @clk_count: Number of clocks, max 1 for now.
+ * @prop_name: Name to postfix to properties.
+ * @set_opp: Custom set OPP helper.
+ * @supported_hw: Array of hierarchy of versions to match.
+ * @supported_hw_count: Number of elements in the array.
+ * @regulator_names: Array of pointers to the names of the regulator.
+ * @regulator_count: Number of regulators.
+ * @genpd_names: Null terminated array of pointers containing names of genpd to
+ *		 attach.
+ * @virt_devs: Pointer to return the array of virtual devices.
+ *
+ * This structure contains platform specific OPP configurations for the device.
+ */
+struct dev_pm_opp_config {
+	const char * const *clk_names;
+	unsigned int clk_count;
+	const char *prop_name;
+	int (*set_opp)(struct dev_pm_set_opp_data *data);
+	unsigned int *supported_hw;
+	unsigned int supported_hw_count;
+	const char * const *regulator_names;
+	unsigned int regulator_count;
+	const char * const *genpd_names;
+	struct device ***virt_devs;
+};
+
 #if defined(CONFIG_PM_OPP)
 
 struct opp_table *dev_pm_opp_get_opp_table(struct device *dev);
@@ -154,6 +183,10 @@ int dev_pm_opp_disable(struct device *dev, unsigned long freq);
 int dev_pm_opp_register_notifier(struct device *dev, struct notifier_block *nb);
 int dev_pm_opp_unregister_notifier(struct device *dev, struct notifier_block *nb);
 
+int dev_pm_opp_set_config(struct device *dev, struct dev_pm_opp_config *config);
+int devm_pm_opp_set_config(struct device *dev, struct dev_pm_opp_config *config);
+void dev_pm_opp_clear_config(int token);
+
 struct opp_table *dev_pm_opp_set_supported_hw(struct device *dev, const u32 *versions, unsigned int count);
 void dev_pm_opp_put_supported_hw(struct opp_table *opp_table);
 int devm_pm_opp_set_supported_hw(struct device *dev, const u32 *versions, unsigned int count);
@@ -419,6 +452,18 @@ static inline int devm_pm_opp_attach_genpd(struct device *dev,
 	return -EOPNOTSUPP;
 }
 
+static inline int dev_pm_opp_set_config(struct device *dev, struct dev_pm_opp_config *config)
+{
+	return -EOPNOTSUPP;
+}
+
+static inline int devm_pm_opp_set_config(struct device *dev, struct dev_pm_opp_config *config)
+{
+	return -EOPNOTSUPP;
+}
+
+static inline void dev_pm_opp_clear_config(int token) {}
+
 static inline struct dev_pm_opp *dev_pm_opp_xlate_required_opp(struct opp_table *src_table,
 				struct opp_table *dst_table, struct dev_pm_opp *src_opp)
 {
-- 
2.31.1.272.g89b43f80a514

[PATCH V2 03/30] cpufreq: dt: Migrate to dev_pm_opp_set_config()

[Viresh Kumar]

The OPP core now provides a unified API for setting all configuration
types, i.e. dev_pm_opp_set_config().

Lets start using it.

Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/cpufreq/cpufreq-dt.c | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/drivers/cpufreq/cpufreq-dt.c b/drivers/cpufreq/cpufreq-dt.c
index 8fcaba541539..9e25bf86e512 100644
--- a/drivers/cpufreq/cpufreq-dt.c
+++ b/drivers/cpufreq/cpufreq-dt.c
@@ -29,8 +29,8 @@ struct private_data {
 
 	cpumask_var_t cpus;
 	struct device *cpu_dev;
-	struct opp_table *opp_table;
 	struct cpufreq_frequency_table *freq_table;
+	int opp_token;
 	bool have_static_opps;
 };
 
@@ -220,12 +220,16 @@ static int dt_cpufreq_early_init(struct device *dev, int cpu)
 	 */
 	reg_name = find_supply_name(cpu_dev);
 	if (reg_name) {
-		priv->opp_table = dev_pm_opp_set_regulators(cpu_dev, &reg_name,
-							    1);
-		if (IS_ERR(priv->opp_table)) {
-			ret = PTR_ERR(priv->opp_table);
+		struct dev_pm_opp_config config = {
+			.regulator_names = &reg_name,
+			.regulator_count = 1,
+		};
+
+		priv->opp_token = dev_pm_opp_set_config(cpu_dev, &config);
+		if (priv->opp_token < 0) {
+			ret = priv->opp_token;
 			if (ret != -EPROBE_DEFER)
-				dev_err(cpu_dev, "failed to set regulators: %d\n",
+				dev_err(cpu_dev, "failed to set OPP config: %d\n",
 					ret);
 			goto free_cpumask;
 		}
@@ -295,7 +299,7 @@ static int dt_cpufreq_early_init(struct device *dev, int cpu)
 out:
 	if (priv->have_static_opps)
 		dev_pm_opp_of_cpumask_remove_table(priv->cpus);
-	dev_pm_opp_put_regulators(priv->opp_table);
+	dev_pm_opp_clear_config(priv->opp_token);
 free_cpumask:
 	free_cpumask_var(priv->cpus);
 	return ret;
@@ -309,7 +313,7 @@ static void dt_cpufreq_release(void)
 		dev_pm_opp_free_cpufreq_table(priv->cpu_dev, &priv->freq_table);
 		if (priv->have_static_opps)
 			dev_pm_opp_of_cpumask_remove_table(priv->cpus);
-		dev_pm_opp_put_regulators(priv->opp_table);
+		dev_pm_opp_clear_config(priv->opp_token);
 		free_cpumask_var(priv->cpus);
 		list_del(&priv->node);
 	}
-- 
2.31.1.272.g89b43f80a514

[PATCH V2 04/30] cpufreq: imx: Migrate to dev_pm_opp_set_config()

[Viresh Kumar]

The OPP core now provides a unified API for setting all configuration
types, i.e. dev_pm_opp_set_config().

Lets start using it.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/cpufreq/imx-cpufreq-dt.c | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/drivers/cpufreq/imx-cpufreq-dt.c b/drivers/cpufreq/imx-cpufreq-dt.c
index 3fe9125156b4..8104fed4ff7c 100644
--- a/drivers/cpufreq/imx-cpufreq-dt.c
+++ b/drivers/cpufreq/imx-cpufreq-dt.c
@@ -31,8 +31,8 @@
 
 /* cpufreq-dt device registered by imx-cpufreq-dt */
 static struct platform_device *cpufreq_dt_pdev;
-static struct opp_table *cpufreq_opp_table;
 static struct device *cpu_dev;
+static int cpufreq_opp_token;
 
 enum IMX7ULP_CPUFREQ_CLKS {
 	ARM,
@@ -86,6 +86,10 @@ static int imx_cpufreq_dt_probe(struct platform_device *pdev)
 	u32 cell_value, supported_hw[2];
 	int speed_grade, mkt_segment;
 	int ret;
+	struct dev_pm_opp_config config = {
+		.supported_hw = supported_hw,
+		.supported_hw_count = ARRAY_SIZE(supported_hw),
+	};
 
 	cpu_dev = get_cpu_device(0);
 
@@ -153,17 +157,17 @@ static int imx_cpufreq_dt_probe(struct platform_device *pdev)
 	dev_info(&pdev->dev, "cpu speed grade %d mkt segment %d supported-hw %#x %#x\n",
 			speed_grade, mkt_segment, supported_hw[0], supported_hw[1]);
 
-	cpufreq_opp_table = dev_pm_opp_set_supported_hw(cpu_dev, supported_hw, 2);
-	if (IS_ERR(cpufreq_opp_table)) {
-		ret = PTR_ERR(cpufreq_opp_table);
-		dev_err(&pdev->dev, "Failed to set supported opp: %d\n", ret);
+	cpufreq_opp_token = dev_pm_opp_set_config(cpu_dev, &config);
+	if (cpufreq_opp_token < 0) {
+		ret = cpufreq_opp_token;
+		dev_err(&pdev->dev, "Failed to set Opp config: %d\n", ret);
 		return ret;
 	}
 
 	cpufreq_dt_pdev = platform_device_register_data(
 			&pdev->dev, "cpufreq-dt", -1, NULL, 0);
 	if (IS_ERR(cpufreq_dt_pdev)) {
-		dev_pm_opp_put_supported_hw(cpufreq_opp_table);
+		dev_pm_opp_clear_config(cpufreq_opp_token);
 		ret = PTR_ERR(cpufreq_dt_pdev);
 		dev_err(&pdev->dev, "Failed to register cpufreq-dt: %d\n", ret);
 		return ret;
@@ -176,7 +180,7 @@ static int imx_cpufreq_dt_remove(struct platform_device *pdev)
 {
 	platform_device_unregister(cpufreq_dt_pdev);
 	if (!of_machine_is_compatible("fsl,imx7ulp"))
-		dev_pm_opp_put_supported_hw(cpufreq_opp_table);
+		dev_pm_opp_clear_config(cpufreq_opp_token);
 	else
 		clk_bulk_put(ARRAY_SIZE(imx7ulp_clks), imx7ulp_clks);
 
-- 
2.31.1.272.g89b43f80a514

[PATCH V2 04/30] cpufreq: imx: Migrate to dev_pm_opp_set_config()

[Viresh Kumar]

The OPP core now provides a unified API for setting all configuration
types, i.e. dev_pm_opp_set_config().

Lets start using it.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/cpufreq/imx-cpufreq-dt.c | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/drivers/cpufreq/imx-cpufreq-dt.c b/drivers/cpufreq/imx-cpufreq-dt.c
index 3fe9125156b4..8104fed4ff7c 100644
--- a/drivers/cpufreq/imx-cpufreq-dt.c
+++ b/drivers/cpufreq/imx-cpufreq-dt.c
@@ -31,8 +31,8 @@
 
 /* cpufreq-dt device registered by imx-cpufreq-dt */
 static struct platform_device *cpufreq_dt_pdev;
-static struct opp_table *cpufreq_opp_table;
 static struct device *cpu_dev;
+static int cpufreq_opp_token;
 
 enum IMX7ULP_CPUFREQ_CLKS {
 	ARM,
@@ -86,6 +86,10 @@ static int imx_cpufreq_dt_probe(struct platform_device *pdev)
 	u32 cell_value, supported_hw[2];
 	int speed_grade, mkt_segment;
 	int ret;
+	struct dev_pm_opp_config config = {
+		.supported_hw = supported_hw,
+		.supported_hw_count = ARRAY_SIZE(supported_hw),
+	};
 
 	cpu_dev = get_cpu_device(0);
 
@@ -153,17 +157,17 @@ static int imx_cpufreq_dt_probe(struct platform_device *pdev)
 	dev_info(&pdev->dev, "cpu speed grade %d mkt segment %d supported-hw %#x %#x\n",
 			speed_grade, mkt_segment, supported_hw[0], supported_hw[1]);
 
-	cpufreq_opp_table = dev_pm_opp_set_supported_hw(cpu_dev, supported_hw, 2);
-	if (IS_ERR(cpufreq_opp_table)) {
-		ret = PTR_ERR(cpufreq_opp_table);
-		dev_err(&pdev->dev, "Failed to set supported opp: %d\n", ret);
+	cpufreq_opp_token = dev_pm_opp_set_config(cpu_dev, &config);
+	if (cpufreq_opp_token < 0) {
+		ret = cpufreq_opp_token;
+		dev_err(&pdev->dev, "Failed to set Opp config: %d\n", ret);
 		return ret;
 	}
 
 	cpufreq_dt_pdev = platform_device_register_data(
 			&pdev->dev, "cpufreq-dt", -1, NULL, 0);
 	if (IS_ERR(cpufreq_dt_pdev)) {
-		dev_pm_opp_put_supported_hw(cpufreq_opp_table);
+		dev_pm_opp_clear_config(cpufreq_opp_token);
 		ret = PTR_ERR(cpufreq_dt_pdev);
 		dev_err(&pdev->dev, "Failed to register cpufreq-dt: %d\n", ret);
 		return ret;
@@ -176,7 +180,7 @@ static int imx_cpufreq_dt_remove(struct platform_device *pdev)
 {
 	platform_device_unregister(cpufreq_dt_pdev);
 	if (!of_machine_is_compatible("fsl,imx7ulp"))
-		dev_pm_opp_put_supported_hw(cpufreq_opp_table);
+		dev_pm_opp_clear_config(cpufreq_opp_token);
 	else
 		clk_bulk_put(ARRAY_SIZE(imx7ulp_clks), imx7ulp_clks);
 
-- 
2.31.1.272.g89b43f80a514


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[PATCH V2 05/30] cpufreq: qcom-nvmem: Migrate to dev_pm_opp_set_config()

[Viresh Kumar]

The OPP core now provides a unified API for setting all configuration
types, i.e. dev_pm_opp_set_config().

Lets start using it.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/cpufreq/qcom-cpufreq-nvmem.c | 109 +++++++--------------------
 1 file changed, 28 insertions(+), 81 deletions(-)

diff --git a/drivers/cpufreq/qcom-cpufreq-nvmem.c b/drivers/cpufreq/qcom-cpufreq-nvmem.c
index 6dfa86971a75..863548f59c3e 100644
--- a/drivers/cpufreq/qcom-cpufreq-nvmem.c
+++ b/drivers/cpufreq/qcom-cpufreq-nvmem.c
@@ -55,9 +55,7 @@ struct qcom_cpufreq_match_data {
 };
 
 struct qcom_cpufreq_drv {
-	struct opp_table **names_opp_tables;
-	struct opp_table **hw_opp_tables;
-	struct opp_table **genpd_opp_tables;
+	int *opp_tokens;
 	u32 versions;
 	const struct qcom_cpufreq_match_data *data;
 };
@@ -315,72 +313,43 @@ static int qcom_cpufreq_probe(struct platform_device *pdev)
 	}
 	of_node_put(np);
 
-	drv->names_opp_tables = kcalloc(num_possible_cpus(),
-				  sizeof(*drv->names_opp_tables),
+	drv->opp_tokens = kcalloc(num_possible_cpus(), sizeof(*drv->opp_tokens),
 				  GFP_KERNEL);
-	if (!drv->names_opp_tables) {
+	if (!drv->opp_tokens) {
 		ret = -ENOMEM;
 		goto free_drv;
 	}
-	drv->hw_opp_tables = kcalloc(num_possible_cpus(),
-				  sizeof(*drv->hw_opp_tables),
-				  GFP_KERNEL);
-	if (!drv->hw_opp_tables) {
-		ret = -ENOMEM;
-		goto free_opp_names;
-	}
-
-	drv->genpd_opp_tables = kcalloc(num_possible_cpus(),
-					sizeof(*drv->genpd_opp_tables),
-					GFP_KERNEL);
-	if (!drv->genpd_opp_tables) {
-		ret = -ENOMEM;
-		goto free_opp;
-	}
 
 	for_each_possible_cpu(cpu) {
+		struct dev_pm_opp_config config = {
+			.supported_hw = NULL,
+		};
+
 		cpu_dev = get_cpu_device(cpu);
 		if (NULL == cpu_dev) {
 			ret = -ENODEV;
-			goto free_genpd_opp;
+			goto free_opp;
 		}
 
 		if (drv->data->get_version) {
+			config.supported_hw = &drv->versions;
+			config.supported_hw_count = 1;
 
-			if (pvs_name) {
-				drv->names_opp_tables[cpu] = dev_pm_opp_set_prop_name(
-								     cpu_dev,
-								     pvs_name);
-				if (IS_ERR(drv->names_opp_tables[cpu])) {
-					ret = PTR_ERR(drv->names_opp_tables[cpu]);
-					dev_err(cpu_dev, "Failed to add OPP name %s\n",
-						pvs_name);
-					goto free_opp;
-				}
-			}
-
-			drv->hw_opp_tables[cpu] = dev_pm_opp_set_supported_hw(
-									 cpu_dev, &drv->versions, 1);
-			if (IS_ERR(drv->hw_opp_tables[cpu])) {
-				ret = PTR_ERR(drv->hw_opp_tables[cpu]);
-				dev_err(cpu_dev,
-					"Failed to set supported hardware\n");
-				goto free_genpd_opp;
-			}
+			if (pvs_name)
+				config.prop_name = pvs_name;
 		}
 
 		if (drv->data->genpd_names) {
-			drv->genpd_opp_tables[cpu] =
-				dev_pm_opp_attach_genpd(cpu_dev,
-							drv->data->genpd_names,
-							NULL);
-			if (IS_ERR(drv->genpd_opp_tables[cpu])) {
-				ret = PTR_ERR(drv->genpd_opp_tables[cpu]);
-				if (ret != -EPROBE_DEFER)
-					dev_err(cpu_dev,
-						"Could not attach to pm_domain: %d\n",
-						ret);
-				goto free_genpd_opp;
+			config.genpd_names = drv->data->genpd_names;
+			config.virt_devs = NULL;
+		}
+
+		if (config.supported_hw || config.genpd_names) {
+			drv->opp_tokens[cpu] = dev_pm_opp_set_config(cpu_dev, &config);
+			if (drv->opp_tokens[cpu] < 0) {
+				ret = drv->opp_tokens[cpu];
+				dev_err(cpu_dev, "Failed to set OPP config\n");
+				goto free_opp;
 			}
 		}
 	}
@@ -395,27 +364,10 @@ static int qcom_cpufreq_probe(struct platform_device *pdev)
 	ret = PTR_ERR(cpufreq_dt_pdev);
 	dev_err(cpu_dev, "Failed to register platform device\n");
 
-free_genpd_opp:
-	for_each_possible_cpu(cpu) {
-		if (IS_ERR(drv->genpd_opp_tables[cpu]))
-			break;
-		dev_pm_opp_detach_genpd(drv->genpd_opp_tables[cpu]);
-	}
-	kfree(drv->genpd_opp_tables);
 free_opp:
-	for_each_possible_cpu(cpu) {
-		if (IS_ERR(drv->names_opp_tables[cpu]))
-			break;
-		dev_pm_opp_put_prop_name(drv->names_opp_tables[cpu]);
-	}
-	for_each_possible_cpu(cpu) {
-		if (IS_ERR(drv->hw_opp_tables[cpu]))
-			break;
-		dev_pm_opp_put_supported_hw(drv->hw_opp_tables[cpu]);
-	}
-	kfree(drv->hw_opp_tables);
-free_opp_names:
-	kfree(drv->names_opp_tables);
+	for_each_possible_cpu(cpu)
+		dev_pm_opp_clear_config(drv->opp_tokens[cpu]);
+	kfree(drv->opp_tokens);
 free_drv:
 	kfree(drv);
 
@@ -429,15 +381,10 @@ static int qcom_cpufreq_remove(struct platform_device *pdev)
 
 	platform_device_unregister(cpufreq_dt_pdev);
 
-	for_each_possible_cpu(cpu) {
-		dev_pm_opp_put_supported_hw(drv->names_opp_tables[cpu]);
-		dev_pm_opp_put_supported_hw(drv->hw_opp_tables[cpu]);
-		dev_pm_opp_detach_genpd(drv->genpd_opp_tables[cpu]);
-	}
+	for_each_possible_cpu(cpu)
+		dev_pm_opp_clear_config(drv->opp_tokens[cpu]);
 
-	kfree(drv->names_opp_tables);
-	kfree(drv->hw_opp_tables);
-	kfree(drv->genpd_opp_tables);
+	kfree(drv->opp_tokens);
 	kfree(drv);
 
 	return 0;
-- 
2.31.1.272.g89b43f80a514

[PATCH V2 06/30] cpufreq: sti: Migrate to dev_pm_opp_set_config()

[Viresh Kumar]

The OPP core now provides a unified API for setting all configuration
types, i.e. dev_pm_opp_set_config().

Lets start using it.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/cpufreq/sti-cpufreq.c | 27 ++++++++++-----------------
 1 file changed, 10 insertions(+), 17 deletions(-)

diff --git a/drivers/cpufreq/sti-cpufreq.c b/drivers/cpufreq/sti-cpufreq.c
index fdb0a722d881..a67df90848c2 100644
--- a/drivers/cpufreq/sti-cpufreq.c
+++ b/drivers/cpufreq/sti-cpufreq.c
@@ -156,9 +156,13 @@ static int sti_cpufreq_set_opp_info(void)
 	unsigned int hw_info_offset;
 	unsigned int version[VERSION_ELEMENTS];
 	int pcode, substrate, major, minor;
-	int ret;
+	int opp_token, ret;
 	char name[MAX_PCODE_NAME_LEN];
-	struct opp_table *opp_table;
+	struct dev_pm_opp_config config = {
+		.supported_hw = version,
+		.supported_hw_count = ARRAY_SIZE(version),
+		.prop_name = name,
+	};
 
 	reg_fields = sti_cpufreq_match();
 	if (!reg_fields) {
@@ -210,21 +214,14 @@ static int sti_cpufreq_set_opp_info(void)
 
 	snprintf(name, MAX_PCODE_NAME_LEN, "pcode%d", pcode);
 
-	opp_table = dev_pm_opp_set_prop_name(dev, name);
-	if (IS_ERR(opp_table)) {
-		dev_err(dev, "Failed to set prop name\n");
-		return PTR_ERR(opp_table);
-	}
-
 	version[0] = BIT(major);
 	version[1] = BIT(minor);
 	version[2] = BIT(substrate);
 
-	opp_table = dev_pm_opp_set_supported_hw(dev, version, VERSION_ELEMENTS);
-	if (IS_ERR(opp_table)) {
-		dev_err(dev, "Failed to set supported hardware\n");
-		ret = PTR_ERR(opp_table);
-		goto err_put_prop_name;
+	opp_token = dev_pm_opp_set_config(dev, &config);
+	if (opp_token < 0) {
+		dev_err(dev, "Failed to set OPP config\n");
+		return opp_token;
 	}
 
 	dev_dbg(dev, "pcode: %d major: %d minor: %d substrate: %d\n",
@@ -233,10 +230,6 @@ static int sti_cpufreq_set_opp_info(void)
 		version[0], version[1], version[2]);
 
 	return 0;
-
-err_put_prop_name:
-	dev_pm_opp_put_prop_name(opp_table);
-	return ret;
 }
 
 static int sti_cpufreq_fetch_syscon_registers(void)
-- 
2.31.1.272.g89b43f80a514

[PATCH V2 06/30] cpufreq: sti: Migrate to dev_pm_opp_set_config()

[Viresh Kumar]

The OPP core now provides a unified API for setting all configuration
types, i.e. dev_pm_opp_set_config().

Lets start using it.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/cpufreq/sti-cpufreq.c | 27 ++++++++++-----------------
 1 file changed, 10 insertions(+), 17 deletions(-)

diff --git a/drivers/cpufreq/sti-cpufreq.c b/drivers/cpufreq/sti-cpufreq.c
index fdb0a722d881..a67df90848c2 100644
--- a/drivers/cpufreq/sti-cpufreq.c
+++ b/drivers/cpufreq/sti-cpufreq.c
@@ -156,9 +156,13 @@ static int sti_cpufreq_set_opp_info(void)
 	unsigned int hw_info_offset;
 	unsigned int version[VERSION_ELEMENTS];
 	int pcode, substrate, major, minor;
-	int ret;
+	int opp_token, ret;
 	char name[MAX_PCODE_NAME_LEN];
-	struct opp_table *opp_table;
+	struct dev_pm_opp_config config = {
+		.supported_hw = version,
+		.supported_hw_count = ARRAY_SIZE(version),
+		.prop_name = name,
+	};
 
 	reg_fields = sti_cpufreq_match();
 	if (!reg_fields) {
@@ -210,21 +214,14 @@ static int sti_cpufreq_set_opp_info(void)
 
 	snprintf(name, MAX_PCODE_NAME_LEN, "pcode%d", pcode);
 
-	opp_table = dev_pm_opp_set_prop_name(dev, name);
-	if (IS_ERR(opp_table)) {
-		dev_err(dev, "Failed to set prop name\n");
-		return PTR_ERR(opp_table);
-	}
-
 	version[0] = BIT(major);
 	version[1] = BIT(minor);
 	version[2] = BIT(substrate);
 
-	opp_table = dev_pm_opp_set_supported_hw(dev, version, VERSION_ELEMENTS);
-	if (IS_ERR(opp_table)) {
-		dev_err(dev, "Failed to set supported hardware\n");
-		ret = PTR_ERR(opp_table);
-		goto err_put_prop_name;
+	opp_token = dev_pm_opp_set_config(dev, &config);
+	if (opp_token < 0) {
+		dev_err(dev, "Failed to set OPP config\n");
+		return opp_token;
 	}
 
 	dev_dbg(dev, "pcode: %d major: %d minor: %d substrate: %d\n",
@@ -233,10 +230,6 @@ static int sti_cpufreq_set_opp_info(void)
 		version[0], version[1], version[2]);
 
 	return 0;
-
-err_put_prop_name:
-	dev_pm_opp_put_prop_name(opp_table);
-	return ret;
 }
 
 static int sti_cpufreq_fetch_syscon_registers(void)
-- 
2.31.1.272.g89b43f80a514


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[PATCH V2 07/30] cpufreq: sun50i: Migrate to dev_pm_opp_set_config()

[Viresh Kumar]

The OPP core now provides a unified API for setting all configuration
types, i.e. dev_pm_opp_set_config().

Lets start using it.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/cpufreq/sun50i-cpufreq-nvmem.c | 36 +++++++++++++-------------
 1 file changed, 18 insertions(+), 18 deletions(-)

diff --git a/drivers/cpufreq/sun50i-cpufreq-nvmem.c b/drivers/cpufreq/sun50i-cpufreq-nvmem.c
index 75e1bf3a08f7..afb1a11f781c 100644
--- a/drivers/cpufreq/sun50i-cpufreq-nvmem.c
+++ b/drivers/cpufreq/sun50i-cpufreq-nvmem.c
@@ -86,26 +86,29 @@ static int sun50i_cpufreq_get_efuse(u32 *versions)
 
 static int sun50i_cpufreq_nvmem_probe(struct platform_device *pdev)
 {
-	struct opp_table **opp_tables;
+	int *opp_tokens;
 	char name[MAX_NAME_LEN];
 	unsigned int cpu;
 	u32 speed = 0;
 	int ret;
 
-	opp_tables = kcalloc(num_possible_cpus(), sizeof(*opp_tables),
+	opp_tokens = kcalloc(num_possible_cpus(), sizeof(*opp_tokens),
 			     GFP_KERNEL);
-	if (!opp_tables)
+	if (!opp_tokens)
 		return -ENOMEM;
 
 	ret = sun50i_cpufreq_get_efuse(&speed);
 	if (ret) {
-		kfree(opp_tables);
+		kfree(opp_tokens);
 		return ret;
 	}
 
 	snprintf(name, MAX_NAME_LEN, "speed%d", speed);
 
 	for_each_possible_cpu(cpu) {
+		struct dev_pm_opp_config config = {
+			.prop_name = name,
+		};
 		struct device *cpu_dev = get_cpu_device(cpu);
 
 		if (!cpu_dev) {
@@ -113,10 +116,10 @@ static int sun50i_cpufreq_nvmem_probe(struct platform_device *pdev)
 			goto free_opp;
 		}
 
-		opp_tables[cpu] = dev_pm_opp_set_prop_name(cpu_dev, name);
-		if (IS_ERR(opp_tables[cpu])) {
-			ret = PTR_ERR(opp_tables[cpu]);
-			pr_err("Failed to set prop name\n");
+		opp_tokens[cpu] = dev_pm_opp_set_config(cpu_dev, &config);
+		if (opp_tokens[cpu] < 0) {
+			ret = opp_tokens[cpu];
+			pr_err("Failed to set OPP config\n");
 			goto free_opp;
 		}
 	}
@@ -124,7 +127,7 @@ static int sun50i_cpufreq_nvmem_probe(struct platform_device *pdev)
 	cpufreq_dt_pdev = platform_device_register_simple("cpufreq-dt", -1,
 							  NULL, 0);
 	if (!IS_ERR(cpufreq_dt_pdev)) {
-		platform_set_drvdata(pdev, opp_tables);
+		platform_set_drvdata(pdev, opp_tokens);
 		return 0;
 	}
 
@@ -132,27 +135,24 @@ static int sun50i_cpufreq_nvmem_probe(struct platform_device *pdev)
 	pr_err("Failed to register platform device\n");
 
 free_opp:
-	for_each_possible_cpu(cpu) {
-		if (IS_ERR_OR_NULL(opp_tables[cpu]))
-			break;
-		dev_pm_opp_put_prop_name(opp_tables[cpu]);
-	}
-	kfree(opp_tables);
+	for_each_possible_cpu(cpu)
+		dev_pm_opp_clear_config(opp_tokens[cpu]);
+	kfree(opp_tokens);
 
 	return ret;
 }
 
 static int sun50i_cpufreq_nvmem_remove(struct platform_device *pdev)
 {
-	struct opp_table **opp_tables = platform_get_drvdata(pdev);
+	int *opp_tokens = platform_get_drvdata(pdev);
 	unsigned int cpu;
 
 	platform_device_unregister(cpufreq_dt_pdev);
 
 	for_each_possible_cpu(cpu)
-		dev_pm_opp_put_prop_name(opp_tables[cpu]);
+		dev_pm_opp_clear_config(opp_tokens[cpu]);
 
-	kfree(opp_tables);
+	kfree(opp_tokens);
 
 	return 0;
 }
-- 
2.31.1.272.g89b43f80a514

[PATCH V2 07/30] cpufreq: sun50i: Migrate to dev_pm_opp_set_config()

[Viresh Kumar]

The OPP core now provides a unified API for setting all configuration
types, i.e. dev_pm_opp_set_config().

Lets start using it.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/cpufreq/sun50i-cpufreq-nvmem.c | 36 +++++++++++++-------------
 1 file changed, 18 insertions(+), 18 deletions(-)

diff --git a/drivers/cpufreq/sun50i-cpufreq-nvmem.c b/drivers/cpufreq/sun50i-cpufreq-nvmem.c
index 75e1bf3a08f7..afb1a11f781c 100644
--- a/drivers/cpufreq/sun50i-cpufreq-nvmem.c
+++ b/drivers/cpufreq/sun50i-cpufreq-nvmem.c
@@ -86,26 +86,29 @@ static int sun50i_cpufreq_get_efuse(u32 *versions)
 
 static int sun50i_cpufreq_nvmem_probe(struct platform_device *pdev)
 {
-	struct opp_table **opp_tables;
+	int *opp_tokens;
 	char name[MAX_NAME_LEN];
 	unsigned int cpu;
 	u32 speed = 0;
 	int ret;
 
-	opp_tables = kcalloc(num_possible_cpus(), sizeof(*opp_tables),
+	opp_tokens = kcalloc(num_possible_cpus(), sizeof(*opp_tokens),
 			     GFP_KERNEL);
-	if (!opp_tables)
+	if (!opp_tokens)
 		return -ENOMEM;
 
 	ret = sun50i_cpufreq_get_efuse(&speed);
 	if (ret) {
-		kfree(opp_tables);
+		kfree(opp_tokens);
 		return ret;
 	}
 
 	snprintf(name, MAX_NAME_LEN, "speed%d", speed);
 
 	for_each_possible_cpu(cpu) {
+		struct dev_pm_opp_config config = {
+			.prop_name = name,
+		};
 		struct device *cpu_dev = get_cpu_device(cpu);
 
 		if (!cpu_dev) {
@@ -113,10 +116,10 @@ static int sun50i_cpufreq_nvmem_probe(struct platform_device *pdev)
 			goto free_opp;
 		}
 
-		opp_tables[cpu] = dev_pm_opp_set_prop_name(cpu_dev, name);
-		if (IS_ERR(opp_tables[cpu])) {
-			ret = PTR_ERR(opp_tables[cpu]);
-			pr_err("Failed to set prop name\n");
+		opp_tokens[cpu] = dev_pm_opp_set_config(cpu_dev, &config);
+		if (opp_tokens[cpu] < 0) {
+			ret = opp_tokens[cpu];
+			pr_err("Failed to set OPP config\n");
 			goto free_opp;
 		}
 	}
@@ -124,7 +127,7 @@ static int sun50i_cpufreq_nvmem_probe(struct platform_device *pdev)
 	cpufreq_dt_pdev = platform_device_register_simple("cpufreq-dt", -1,
 							  NULL, 0);
 	if (!IS_ERR(cpufreq_dt_pdev)) {
-		platform_set_drvdata(pdev, opp_tables);
+		platform_set_drvdata(pdev, opp_tokens);
 		return 0;
 	}
 
@@ -132,27 +135,24 @@ static int sun50i_cpufreq_nvmem_probe(struct platform_device *pdev)
 	pr_err("Failed to register platform device\n");
 
 free_opp:
-	for_each_possible_cpu(cpu) {
-		if (IS_ERR_OR_NULL(opp_tables[cpu]))
-			break;
-		dev_pm_opp_put_prop_name(opp_tables[cpu]);
-	}
-	kfree(opp_tables);
+	for_each_possible_cpu(cpu)
+		dev_pm_opp_clear_config(opp_tokens[cpu]);
+	kfree(opp_tokens);
 
 	return ret;
 }
 
 static int sun50i_cpufreq_nvmem_remove(struct platform_device *pdev)
 {
-	struct opp_table **opp_tables = platform_get_drvdata(pdev);
+	int *opp_tokens = platform_get_drvdata(pdev);
 	unsigned int cpu;
 
 	platform_device_unregister(cpufreq_dt_pdev);
 
 	for_each_possible_cpu(cpu)
-		dev_pm_opp_put_prop_name(opp_tables[cpu]);
+		dev_pm_opp_clear_config(opp_tokens[cpu]);
 
-	kfree(opp_tables);
+	kfree(opp_tokens);
 
 	return 0;
 }
-- 
2.31.1.272.g89b43f80a514


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[PATCH V2 08/30] cpufreq: tegra20: Migrate to dev_pm_opp_set_config()

[Viresh Kumar]

The OPP core now provides a unified API for setting all configuration
types, i.e. dev_pm_opp_set_config().

Lets start using it.

Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/cpufreq/tegra20-cpufreq.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/drivers/cpufreq/tegra20-cpufreq.c b/drivers/cpufreq/tegra20-cpufreq.c
index e8db3d75be25..edd738e641f8 100644
--- a/drivers/cpufreq/tegra20-cpufreq.c
+++ b/drivers/cpufreq/tegra20-cpufreq.c
@@ -32,9 +32,9 @@ static bool cpu0_node_has_opp_v2_prop(void)
 	return ret;
 }
 
-static void tegra20_cpufreq_put_supported_hw(void *opp_table)
+static void tegra20_cpufreq_put_supported_hw(void *opp_token)
 {
-	dev_pm_opp_put_supported_hw(opp_table);
+	dev_pm_opp_clear_config((unsigned long) opp_token);
 }
 
 static void tegra20_cpufreq_dt_unregister(void *cpufreq_dt)
@@ -45,10 +45,13 @@ static void tegra20_cpufreq_dt_unregister(void *cpufreq_dt)
 static int tegra20_cpufreq_probe(struct platform_device *pdev)
 {
 	struct platform_device *cpufreq_dt;
-	struct opp_table *opp_table;
 	struct device *cpu_dev;
 	u32 versions[2];
 	int err;
+	struct dev_pm_opp_config config = {
+		.supported_hw = versions,
+		.supported_hw_count = ARRAY_SIZE(versions),
+	};
 
 	if (!cpu0_node_has_opp_v2_prop()) {
 		dev_err(&pdev->dev, "operating points not found\n");
@@ -71,16 +74,15 @@ static int tegra20_cpufreq_probe(struct platform_device *pdev)
 	if (WARN_ON(!cpu_dev))
 		return -ENODEV;
 
-	opp_table = dev_pm_opp_set_supported_hw(cpu_dev, versions, 2);
-	err = PTR_ERR_OR_ZERO(opp_table);
-	if (err) {
-		dev_err(&pdev->dev, "failed to set supported hw: %d\n", err);
+	err = dev_pm_opp_set_config(cpu_dev, &config);
+	if (err < 0) {
+		dev_err(&pdev->dev, "failed to set OPP config: %d\n", err);
 		return err;
 	}
 
 	err = devm_add_action_or_reset(&pdev->dev,
 				       tegra20_cpufreq_put_supported_hw,
-				       opp_table);
+				       (void *)((unsigned long) err));
 	if (err)
 		return err;
 
-- 
2.31.1.272.g89b43f80a514

[PATCH V2 09/30] cpufreq: ti: Migrate to dev_pm_opp_set_config()

[Viresh Kumar]

The OPP core now provides a unified API for setting all configuration
types, i.e. dev_pm_opp_set_config().

Lets start using it.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/cpufreq/ti-cpufreq.c | 38 ++++++++++++++----------------------
 1 file changed, 15 insertions(+), 23 deletions(-)

diff --git a/drivers/cpufreq/ti-cpufreq.c b/drivers/cpufreq/ti-cpufreq.c
index 8f9fdd864391..92a873e4d646 100644
--- a/drivers/cpufreq/ti-cpufreq.c
+++ b/drivers/cpufreq/ti-cpufreq.c
@@ -60,7 +60,6 @@ struct ti_cpufreq_data {
 	struct device_node *opp_node;
 	struct regmap *syscon;
 	const struct ti_cpufreq_soc_data *soc_data;
-	struct opp_table *opp_table;
 };
 
 static unsigned long amx3_efuse_xlate(struct ti_cpufreq_data *opp_data,
@@ -324,10 +323,13 @@ static int ti_cpufreq_probe(struct platform_device *pdev)
 {
 	u32 version[VERSION_COUNT];
 	const struct of_device_id *match;
-	struct opp_table *ti_opp_table;
 	struct ti_cpufreq_data *opp_data;
 	const char * const default_reg_names[] = {"vdd", "vbb"};
 	int ret;
+	struct dev_pm_opp_config config = {
+		.supported_hw = version,
+		.supported_hw_count = ARRAY_SIZE(version),
+	};
 
 	match = dev_get_platdata(&pdev->dev);
 	if (!match)
@@ -370,33 +372,23 @@ static int ti_cpufreq_probe(struct platform_device *pdev)
 	if (ret)
 		goto fail_put_node;
 
-	ti_opp_table = dev_pm_opp_set_supported_hw(opp_data->cpu_dev,
-						   version, VERSION_COUNT);
-	if (IS_ERR(ti_opp_table)) {
-		dev_err(opp_data->cpu_dev,
-			"Failed to set supported hardware\n");
-		ret = PTR_ERR(ti_opp_table);
-		goto fail_put_node;
-	}
-
-	opp_data->opp_table = ti_opp_table;
-
 	if (opp_data->soc_data->multi_regulator) {
-		const char * const *reg_names = default_reg_names;
+		config.regulator_count = ARRAY_SIZE(default_reg_names);
 
 		if (opp_data->soc_data->reg_names)
-			reg_names = opp_data->soc_data->reg_names;
-		ti_opp_table = dev_pm_opp_set_regulators(opp_data->cpu_dev,
-							 reg_names,
-							 ARRAY_SIZE(default_reg_names));
-		if (IS_ERR(ti_opp_table)) {
-			dev_pm_opp_put_supported_hw(opp_data->opp_table);
-			ret =  PTR_ERR(ti_opp_table);
-			goto fail_put_node;
-		}
+			config.regulator_names = opp_data->soc_data->reg_names;
+		else
+			config.regulator_names = default_reg_names;
+	}
+
+	ret = dev_pm_opp_set_config(opp_data->cpu_dev, &config);
+	if (ret < 0) {
+		dev_err(opp_data->cpu_dev, "Failed to set OPP config\n");
+		goto fail_put_node;
 	}
 
 	of_node_put(opp_data->opp_node);
+
 register_cpufreq_dt:
 	platform_device_register_simple("cpufreq-dt", -1, NULL, 0);
 
-- 
2.31.1.272.g89b43f80a514

[PATCH V2 10/30] devfreq: exynos: Migrate to dev_pm_opp_set_config()

[Viresh Kumar]

The OPP core now provides a unified API for setting all configuration
types, i.e. dev_pm_opp_set_config().

Lets start using it.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/devfreq/exynos-bus.c | 25 ++++++++++++-------------
 1 file changed, 12 insertions(+), 13 deletions(-)

diff --git a/drivers/devfreq/exynos-bus.c b/drivers/devfreq/exynos-bus.c
index e689101abc93..b5615e667e31 100644
--- a/drivers/devfreq/exynos-bus.c
+++ b/drivers/devfreq/exynos-bus.c
@@ -33,7 +33,7 @@ struct exynos_bus {
 
 	unsigned long curr_freq;
 
-	struct opp_table *opp_table;
+	int opp_token;
 	struct clk *clk;
 	unsigned int ratio;
 };
@@ -161,8 +161,7 @@ static void exynos_bus_exit(struct device *dev)
 
 	dev_pm_opp_of_remove_table(dev);
 	clk_disable_unprepare(bus->clk);
-	dev_pm_opp_put_regulators(bus->opp_table);
-	bus->opp_table = NULL;
+	dev_pm_opp_clear_config(bus->opp_token);
 }
 
 static void exynos_bus_passive_exit(struct device *dev)
@@ -179,18 +178,20 @@ static int exynos_bus_parent_parse_of(struct device_node *np,
 					struct exynos_bus *bus)
 {
 	struct device *dev = bus->dev;
-	struct opp_table *opp_table;
 	const char *vdd = "vdd";
 	int i, ret, count, size;
+	struct dev_pm_opp_config config = {
+		.regulator_names = &vdd,
+		.regulator_count = 1,
+	};
 
-	opp_table = dev_pm_opp_set_regulators(dev, &vdd, 1);
-	if (IS_ERR(opp_table)) {
-		ret = PTR_ERR(opp_table);
-		dev_err(dev, "failed to set regulators %d\n", ret);
+	ret = dev_pm_opp_set_config(dev, &config);
+	if (ret < 0) {
+		dev_err(dev, "failed to set OPP config %d\n", ret);
 		return ret;
 	}
 
-	bus->opp_table = opp_table;
+	bus->opp_token = ret;
 
 	/*
 	 * Get the devfreq-event devices to get the current utilization of
@@ -236,8 +237,7 @@ static int exynos_bus_parent_parse_of(struct device_node *np,
 	return 0;
 
 err_regulator:
-	dev_pm_opp_put_regulators(bus->opp_table);
-	bus->opp_table = NULL;
+	dev_pm_opp_clear_config(bus->opp_token);
 
 	return ret;
 }
@@ -459,8 +459,7 @@ static int exynos_bus_probe(struct platform_device *pdev)
 	dev_pm_opp_of_remove_table(dev);
 	clk_disable_unprepare(bus->clk);
 err_reg:
-	dev_pm_opp_put_regulators(bus->opp_table);
-	bus->opp_table = NULL;
+	dev_pm_opp_clear_config(bus->opp_token);
 
 	return ret;
 }
-- 
2.31.1.272.g89b43f80a514

[PATCH V2 10/30] devfreq: exynos: Migrate to dev_pm_opp_set_config()

[Viresh Kumar]

The OPP core now provides a unified API for setting all configuration
types, i.e. dev_pm_opp_set_config().

Lets start using it.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/devfreq/exynos-bus.c | 25 ++++++++++++-------------
 1 file changed, 12 insertions(+), 13 deletions(-)

diff --git a/drivers/devfreq/exynos-bus.c b/drivers/devfreq/exynos-bus.c
index e689101abc93..b5615e667e31 100644
--- a/drivers/devfreq/exynos-bus.c
+++ b/drivers/devfreq/exynos-bus.c
@@ -33,7 +33,7 @@ struct exynos_bus {
 
 	unsigned long curr_freq;
 
-	struct opp_table *opp_table;
+	int opp_token;
 	struct clk *clk;
 	unsigned int ratio;
 };
@@ -161,8 +161,7 @@ static void exynos_bus_exit(struct device *dev)
 
 	dev_pm_opp_of_remove_table(dev);
 	clk_disable_unprepare(bus->clk);
-	dev_pm_opp_put_regulators(bus->opp_table);
-	bus->opp_table = NULL;
+	dev_pm_opp_clear_config(bus->opp_token);
 }
 
 static void exynos_bus_passive_exit(struct device *dev)
@@ -179,18 +178,20 @@ static int exynos_bus_parent_parse_of(struct device_node *np,
 					struct exynos_bus *bus)
 {
 	struct device *dev = bus->dev;
-	struct opp_table *opp_table;
 	const char *vdd = "vdd";
 	int i, ret, count, size;
+	struct dev_pm_opp_config config = {
+		.regulator_names = &vdd,
+		.regulator_count = 1,
+	};
 
-	opp_table = dev_pm_opp_set_regulators(dev, &vdd, 1);
-	if (IS_ERR(opp_table)) {
-		ret = PTR_ERR(opp_table);
-		dev_err(dev, "failed to set regulators %d\n", ret);
+	ret = dev_pm_opp_set_config(dev, &config);
+	if (ret < 0) {
+		dev_err(dev, "failed to set OPP config %d\n", ret);
 		return ret;
 	}
 
-	bus->opp_table = opp_table;
+	bus->opp_token = ret;
 
 	/*
 	 * Get the devfreq-event devices to get the current utilization of
@@ -236,8 +237,7 @@ static int exynos_bus_parent_parse_of(struct device_node *np,
 	return 0;
 
 err_regulator:
-	dev_pm_opp_put_regulators(bus->opp_table);
-	bus->opp_table = NULL;
+	dev_pm_opp_clear_config(bus->opp_token);
 
 	return ret;
 }
@@ -459,8 +459,7 @@ static int exynos_bus_probe(struct platform_device *pdev)
 	dev_pm_opp_of_remove_table(dev);
 	clk_disable_unprepare(bus->clk);
 err_reg:
-	dev_pm_opp_put_regulators(bus->opp_table);
-	bus->opp_table = NULL;
+	dev_pm_opp_clear_config(bus->opp_token);
 
 	return ret;
 }
-- 
2.31.1.272.g89b43f80a514


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[PATCH V2 11/30] devfreq: sun8i: Migrate to dev_pm_opp_set_config()

[Viresh Kumar]

The OPP core now provides a unified API for setting all configuration
types, i.e. dev_pm_opp_set_config().

Lets start using it.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/devfreq/sun8i-a33-mbus.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/devfreq/sun8i-a33-mbus.c b/drivers/devfreq/sun8i-a33-mbus.c
index 13d32213139f..0dcc13cae7d7 100644
--- a/drivers/devfreq/sun8i-a33-mbus.c
+++ b/drivers/devfreq/sun8i-a33-mbus.c
@@ -337,6 +337,10 @@ static int sun8i_a33_mbus_probe(struct platform_device *pdev)
 	unsigned int max_state;
 	const char *err;
 	int i, ret;
+	struct dev_pm_opp_config config = {
+		.clk_names = (const char *[]){ "dram" },
+		.clk_count = 1,
+	};
 
 	variant = device_get_match_data(dev);
 	if (!variant)
@@ -404,9 +408,9 @@ static int sun8i_a33_mbus_probe(struct platform_device *pdev)
 	priv->profile.freq_table	= priv->freq_table;
 	priv->profile.max_state		= max_state;
 
-	ret = devm_pm_opp_set_clkname(dev, "dram");
+	ret = devm_pm_opp_set_config(dev, &config);
 	if (ret) {
-		err = "failed to add OPP table\n";
+		err = "failed to set OPP config\n";
 		goto err_unlock_mbus;
 	}
 
-- 
2.31.1.272.g89b43f80a514

[PATCH V2 11/30] devfreq: sun8i: Migrate to dev_pm_opp_set_config()

[Viresh Kumar]

The OPP core now provides a unified API for setting all configuration
types, i.e. dev_pm_opp_set_config().

Lets start using it.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/devfreq/sun8i-a33-mbus.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/devfreq/sun8i-a33-mbus.c b/drivers/devfreq/sun8i-a33-mbus.c
index 13d32213139f..0dcc13cae7d7 100644
--- a/drivers/devfreq/sun8i-a33-mbus.c
+++ b/drivers/devfreq/sun8i-a33-mbus.c
@@ -337,6 +337,10 @@ static int sun8i_a33_mbus_probe(struct platform_device *pdev)
 	unsigned int max_state;
 	const char *err;
 	int i, ret;
+	struct dev_pm_opp_config config = {
+		.clk_names = (const char *[]){ "dram" },
+		.clk_count = 1,
+	};
 
 	variant = device_get_match_data(dev);
 	if (!variant)
@@ -404,9 +408,9 @@ static int sun8i_a33_mbus_probe(struct platform_device *pdev)
 	priv->profile.freq_table	= priv->freq_table;
 	priv->profile.max_state		= max_state;
 
-	ret = devm_pm_opp_set_clkname(dev, "dram");
+	ret = devm_pm_opp_set_config(dev, &config);
 	if (ret) {
-		err = "failed to add OPP table\n";
+		err = "failed to set OPP config\n";
 		goto err_unlock_mbus;
 	}
 
-- 
2.31.1.272.g89b43f80a514


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[PATCH V2 12/30] devfreq: tegra30: Migrate to dev_pm_opp_set_config()

[Viresh Kumar]

The OPP core now provides a unified API for setting all configuration
types, i.e. dev_pm_opp_set_config().

Lets start using it.

Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/devfreq/tegra30-devfreq.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/devfreq/tegra30-devfreq.c b/drivers/devfreq/tegra30-devfreq.c
index 65ecf17a36f4..30382bdfc655 100644
--- a/drivers/devfreq/tegra30-devfreq.c
+++ b/drivers/devfreq/tegra30-devfreq.c
@@ -830,6 +830,10 @@ static int tegra_devfreq_probe(struct platform_device *pdev)
 	unsigned int i;
 	long rate;
 	int err;
+	struct dev_pm_opp_config config = {
+		.supported_hw = &hw_version,
+		.supported_hw_count = 1,
+	};
 
 	tegra = devm_kzalloc(&pdev->dev, sizeof(*tegra), GFP_KERNEL);
 	if (!tegra)
@@ -874,9 +878,9 @@ static int tegra_devfreq_probe(struct platform_device *pdev)
 		return err;
 	}
 
-	err = devm_pm_opp_set_supported_hw(&pdev->dev, &hw_version, 1);
+	err = devm_pm_opp_set_config(&pdev->dev, &config);
 	if (err) {
-		dev_err(&pdev->dev, "Failed to set supported HW: %d\n", err);
+		dev_err(&pdev->dev, "Failed to set OPP config: %d\n", err);
 		return err;
 	}
 
-- 
2.31.1.272.g89b43f80a514

[PATCH V2 13/30] drm/lima: Migrate to dev_pm_opp_set_config()

[Viresh Kumar]

The OPP core now provides a unified API for setting all configuration
types, i.e. dev_pm_opp_set_config().

Lets start using it.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/gpu/drm/lima/lima_devfreq.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/lima/lima_devfreq.c b/drivers/gpu/drm/lima/lima_devfreq.c
index 8989e215dfc9..d8c67843fa1b 100644
--- a/drivers/gpu/drm/lima/lima_devfreq.c
+++ b/drivers/gpu/drm/lima/lima_devfreq.c
@@ -111,6 +111,12 @@ int lima_devfreq_init(struct lima_device *ldev)
 	struct dev_pm_opp *opp;
 	unsigned long cur_freq;
 	int ret;
+	struct dev_pm_opp_config config = {
+		.regulator_names = (const char *[]){ "mali" },
+		.regulator_count = 1,
+		.clk_names = (const char *[]){ "core" },
+		.clk_count = 1,
+	};
 
 	if (!device_property_present(dev, "operating-points-v2"))
 		/* Optional, continue without devfreq */
@@ -118,11 +124,7 @@ int lima_devfreq_init(struct lima_device *ldev)
 
 	spin_lock_init(&ldevfreq->lock);
 
-	ret = devm_pm_opp_set_clkname(dev, "core");
-	if (ret)
-		return ret;
-
-	ret = devm_pm_opp_set_regulators(dev, (const char *[]){ "mali" }, 1);
+	ret = devm_pm_opp_set_config(dev, &config);
 	if (ret) {
 		/* Continue if the optional regulator is missing */
 		if (ret != -ENODEV)
-- 
2.31.1.272.g89b43f80a514

[PATCH V2 13/30] drm/lima: Migrate to dev_pm_opp_set_config()

[Viresh Kumar]

The OPP core now provides a unified API for setting all configuration
types, i.e. dev_pm_opp_set_config().

Lets start using it.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/gpu/drm/lima/lima_devfreq.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/lima/lima_devfreq.c b/drivers/gpu/drm/lima/lima_devfreq.c
index 8989e215dfc9..d8c67843fa1b 100644
--- a/drivers/gpu/drm/lima/lima_devfreq.c
+++ b/drivers/gpu/drm/lima/lima_devfreq.c
@@ -111,6 +111,12 @@ int lima_devfreq_init(struct lima_device *ldev)
 	struct dev_pm_opp *opp;
 	unsigned long cur_freq;
 	int ret;
+	struct dev_pm_opp_config config = {
+		.regulator_names = (const char *[]){ "mali" },
+		.regulator_count = 1,
+		.clk_names = (const char *[]){ "core" },
+		.clk_count = 1,
+	};
 
 	if (!device_property_present(dev, "operating-points-v2"))
 		/* Optional, continue without devfreq */
@@ -118,11 +124,7 @@ int lima_devfreq_init(struct lima_device *ldev)
 
 	spin_lock_init(&ldevfreq->lock);
 
-	ret = devm_pm_opp_set_clkname(dev, "core");
-	if (ret)
-		return ret;
-
-	ret = devm_pm_opp_set_regulators(dev, (const char *[]){ "mali" }, 1);
+	ret = devm_pm_opp_set_config(dev, &config);
 	if (ret) {
 		/* Continue if the optional regulator is missing */
 		if (ret != -ENODEV)
-- 
2.31.1.272.g89b43f80a514

[PATCH V2 14/30] drm/msm: Migrate to dev_pm_opp_set_config()

[Viresh Kumar]

The OPP core now provides a unified API for setting all configuration
types, i.e. dev_pm_opp_set_config().

Lets start using it.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/gpu/drm/msm/adreno/a5xx_gpu.c   |  8 ++++++--
 drivers/gpu/drm/msm/adreno/a6xx_gpu.c   | 10 +++++-----
 drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c |  6 +++++-
 drivers/gpu/drm/msm/dp/dp_ctrl.c        |  6 +++++-
 drivers/gpu/drm/msm/dsi/dsi_host.c      |  6 +++++-
 5 files changed, 26 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
index c424e9a37669..6ebb5a28c501 100644
--- a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
@@ -1723,10 +1723,14 @@ static void check_speed_bin(struct device *dev)
 {
 	struct nvmem_cell *cell;
 	u32 val;
+	struct dev_pm_opp_config config = {
+		.supported_hw = &val,
+		.supported_hw_count = 1,
+	};
 
 	/*
 	 * If the OPP table specifies a opp-supported-hw property then we have
-	 * to set something with dev_pm_opp_set_supported_hw() or the table
+	 * to set something with dev_pm_opp_set_config() or the table
 	 * doesn't get populated so pick an arbitrary value that should
 	 * ensure the default frequencies are selected but not conflict with any
 	 * actual bins
@@ -1748,7 +1752,7 @@ static void check_speed_bin(struct device *dev)
 		nvmem_cell_put(cell);
 	}
 
-	devm_pm_opp_set_supported_hw(dev, &val, 1);
+	devm_pm_opp_set_config(dev, &config);
 }
 
 struct msm_gpu *a5xx_gpu_init(struct drm_device *dev)
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
index 42ed9a3c4905..82801311f7d4 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
@@ -1800,6 +1800,10 @@ static int a6xx_set_supported_hw(struct device *dev, struct adreno_rev rev)
 	u32 supp_hw = UINT_MAX;
 	u32 speedbin;
 	int ret;
+	struct dev_pm_opp_config config = {
+		.supported_hw = &supp_hw,
+		.supported_hw_count = 1,
+	};
 
 	ret = adreno_read_speedbin(dev, &speedbin);
 	/*
@@ -1818,11 +1822,7 @@ static int a6xx_set_supported_hw(struct device *dev, struct adreno_rev rev)
 	supp_hw = fuse_to_supp_hw(dev, rev, speedbin);
 
 done:
-	ret = devm_pm_opp_set_supported_hw(dev, &supp_hw, 1);
-	if (ret)
-		return ret;
-
-	return 0;
+	return devm_pm_opp_set_config(dev, &config);
 }
 
 static const struct adreno_gpu_funcs funcs = {
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
index e23e2552e802..2213ce52d2fa 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
@@ -1215,12 +1215,16 @@ static int dpu_kms_init(struct drm_device *ddev)
 	struct dev_pm_opp *opp;
 	int ret = 0;
 	unsigned long max_freq = ULONG_MAX;
+	struct dev_pm_opp_config config = {
+		.clk_names = (const char *[]){ "core" },
+		.clk_count = 1,
+	};
 
 	dpu_kms = devm_kzalloc(&pdev->dev, sizeof(*dpu_kms), GFP_KERNEL);
 	if (!dpu_kms)
 		return -ENOMEM;
 
-	ret = devm_pm_opp_set_clkname(dev, "core");
+	ret = devm_pm_opp_set_config(dev, &config);
 	if (ret)
 		return ret;
 	/* OPP table is optional */
diff --git a/drivers/gpu/drm/msm/dp/dp_ctrl.c b/drivers/gpu/drm/msm/dp/dp_ctrl.c
index b7f5b8d3bbd6..0c8fc151b4be 100644
--- a/drivers/gpu/drm/msm/dp/dp_ctrl.c
+++ b/drivers/gpu/drm/msm/dp/dp_ctrl.c
@@ -2022,6 +2022,10 @@ struct dp_ctrl *dp_ctrl_get(struct device *dev, struct dp_link *link,
 {
 	struct dp_ctrl_private *ctrl;
 	int ret;
+	struct dev_pm_opp_config config = {
+		.clk_names = (const char *[]){ "ctrl_link" },
+		.clk_count = 1,
+	};
 
 	if (!dev || !panel || !aux ||
 	    !link || !catalog) {
@@ -2035,7 +2039,7 @@ struct dp_ctrl *dp_ctrl_get(struct device *dev, struct dp_link *link,
 		return ERR_PTR(-ENOMEM);
 	}
 
-	ret = devm_pm_opp_set_clkname(dev, "ctrl_link");
+	ret = devm_pm_opp_set_config(dev, &config);
 	if (ret) {
 		dev_err(dev, "invalid DP OPP table in device tree\n");
 		/* caller do PTR_ERR(opp_table) */
diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
index a95d5df52653..35b6722d1cf9 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -2034,6 +2034,10 @@ int msm_dsi_host_init(struct msm_dsi *msm_dsi)
 	struct msm_dsi_host *msm_host = NULL;
 	struct platform_device *pdev = msm_dsi->pdev;
 	int ret;
+	struct dev_pm_opp_config config = {
+		.clk_names = (const char *[]){ "byte" },
+		.clk_count = 1,
+	};
 
 	msm_host = devm_kzalloc(&pdev->dev, sizeof(*msm_host), GFP_KERNEL);
 	if (!msm_host) {
@@ -2095,7 +2099,7 @@ int msm_dsi_host_init(struct msm_dsi *msm_dsi)
 		goto fail;
 	}
 
-	ret = devm_pm_opp_set_clkname(&pdev->dev, "byte");
+	ret = devm_pm_opp_set_config(&pdev->dev, &config);
 	if (ret)
 		return ret;
 	/* OPP table is optional */
-- 
2.31.1.272.g89b43f80a514

[PATCH V2 14/30] drm/msm: Migrate to dev_pm_opp_set_config()

[Viresh Kumar]

The OPP core now provides a unified API for setting all configuration
types, i.e. dev_pm_opp_set_config().

Lets start using it.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/gpu/drm/msm/adreno/a5xx_gpu.c   |  8 ++++++--
 drivers/gpu/drm/msm/adreno/a6xx_gpu.c   | 10 +++++-----
 drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c |  6 +++++-
 drivers/gpu/drm/msm/dp/dp_ctrl.c        |  6 +++++-
 drivers/gpu/drm/msm/dsi/dsi_host.c      |  6 +++++-
 5 files changed, 26 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
index c424e9a37669..6ebb5a28c501 100644
--- a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
@@ -1723,10 +1723,14 @@ static void check_speed_bin(struct device *dev)
 {
 	struct nvmem_cell *cell;
 	u32 val;
+	struct dev_pm_opp_config config = {
+		.supported_hw = &val,
+		.supported_hw_count = 1,
+	};
 
 	/*
 	 * If the OPP table specifies a opp-supported-hw property then we have
-	 * to set something with dev_pm_opp_set_supported_hw() or the table
+	 * to set something with dev_pm_opp_set_config() or the table
 	 * doesn't get populated so pick an arbitrary value that should
 	 * ensure the default frequencies are selected but not conflict with any
 	 * actual bins
@@ -1748,7 +1752,7 @@ static void check_speed_bin(struct device *dev)
 		nvmem_cell_put(cell);
 	}
 
-	devm_pm_opp_set_supported_hw(dev, &val, 1);
+	devm_pm_opp_set_config(dev, &config);
 }
 
 struct msm_gpu *a5xx_gpu_init(struct drm_device *dev)
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
index 42ed9a3c4905..82801311f7d4 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
@@ -1800,6 +1800,10 @@ static int a6xx_set_supported_hw(struct device *dev, struct adreno_rev rev)
 	u32 supp_hw = UINT_MAX;
 	u32 speedbin;
 	int ret;
+	struct dev_pm_opp_config config = {
+		.supported_hw = &supp_hw,
+		.supported_hw_count = 1,
+	};
 
 	ret = adreno_read_speedbin(dev, &speedbin);
 	/*
@@ -1818,11 +1822,7 @@ static int a6xx_set_supported_hw(struct device *dev, struct adreno_rev rev)
 	supp_hw = fuse_to_supp_hw(dev, rev, speedbin);
 
 done:
-	ret = devm_pm_opp_set_supported_hw(dev, &supp_hw, 1);
-	if (ret)
-		return ret;
-
-	return 0;
+	return devm_pm_opp_set_config(dev, &config);
 }
 
 static const struct adreno_gpu_funcs funcs = {
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
index e23e2552e802..2213ce52d2fa 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
@@ -1215,12 +1215,16 @@ static int dpu_kms_init(struct drm_device *ddev)
 	struct dev_pm_opp *opp;
 	int ret = 0;
 	unsigned long max_freq = ULONG_MAX;
+	struct dev_pm_opp_config config = {
+		.clk_names = (const char *[]){ "core" },
+		.clk_count = 1,
+	};
 
 	dpu_kms = devm_kzalloc(&pdev->dev, sizeof(*dpu_kms), GFP_KERNEL);
 	if (!dpu_kms)
 		return -ENOMEM;
 
-	ret = devm_pm_opp_set_clkname(dev, "core");
+	ret = devm_pm_opp_set_config(dev, &config);
 	if (ret)
 		return ret;
 	/* OPP table is optional */
diff --git a/drivers/gpu/drm/msm/dp/dp_ctrl.c b/drivers/gpu/drm/msm/dp/dp_ctrl.c
index b7f5b8d3bbd6..0c8fc151b4be 100644
--- a/drivers/gpu/drm/msm/dp/dp_ctrl.c
+++ b/drivers/gpu/drm/msm/dp/dp_ctrl.c
@@ -2022,6 +2022,10 @@ struct dp_ctrl *dp_ctrl_get(struct device *dev, struct dp_link *link,
 {
 	struct dp_ctrl_private *ctrl;
 	int ret;
+	struct dev_pm_opp_config config = {
+		.clk_names = (const char *[]){ "ctrl_link" },
+		.clk_count = 1,
+	};
 
 	if (!dev || !panel || !aux ||
 	    !link || !catalog) {
@@ -2035,7 +2039,7 @@ struct dp_ctrl *dp_ctrl_get(struct device *dev, struct dp_link *link,
 		return ERR_PTR(-ENOMEM);
 	}
 
-	ret = devm_pm_opp_set_clkname(dev, "ctrl_link");
+	ret = devm_pm_opp_set_config(dev, &config);
 	if (ret) {
 		dev_err(dev, "invalid DP OPP table in device tree\n");
 		/* caller do PTR_ERR(opp_table) */
diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
index a95d5df52653..35b6722d1cf9 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -2034,6 +2034,10 @@ int msm_dsi_host_init(struct msm_dsi *msm_dsi)
 	struct msm_dsi_host *msm_host = NULL;
 	struct platform_device *pdev = msm_dsi->pdev;
 	int ret;
+	struct dev_pm_opp_config config = {
+		.clk_names = (const char *[]){ "byte" },
+		.clk_count = 1,
+	};
 
 	msm_host = devm_kzalloc(&pdev->dev, sizeof(*msm_host), GFP_KERNEL);
 	if (!msm_host) {
@@ -2095,7 +2099,7 @@ int msm_dsi_host_init(struct msm_dsi *msm_dsi)
 		goto fail;
 	}
 
-	ret = devm_pm_opp_set_clkname(&pdev->dev, "byte");
+	ret = devm_pm_opp_set_config(&pdev->dev, &config);
 	if (ret)
 		return ret;
 	/* OPP table is optional */
-- 
2.31.1.272.g89b43f80a514

[PATCH V2 15/30] drm/panfrost: Migrate to dev_pm_opp_set_config()

[Viresh Kumar]

The OPP core now provides a unified API for setting all configuration
types, i.e. dev_pm_opp_set_config().

Lets start using it.

Acked-by: Steven Price <steven.price@arm.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/gpu/drm/panfrost/panfrost_devfreq.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/panfrost/panfrost_devfreq.c b/drivers/gpu/drm/panfrost/panfrost_devfreq.c
index 194af7f607a6..7826d9366d35 100644
--- a/drivers/gpu/drm/panfrost/panfrost_devfreq.c
+++ b/drivers/gpu/drm/panfrost/panfrost_devfreq.c
@@ -91,6 +91,10 @@ int panfrost_devfreq_init(struct panfrost_device *pfdev)
 	struct devfreq *devfreq;
 	struct thermal_cooling_device *cooling;
 	struct panfrost_devfreq *pfdevfreq = &pfdev->pfdevfreq;
+	struct dev_pm_opp_config config = {
+		.regulator_names = pfdev->comp->supply_names,
+		.regulator_count = pfdev->comp->num_supplies,
+	};
 
 	if (pfdev->comp->num_supplies > 1) {
 		/*
@@ -101,13 +105,12 @@ int panfrost_devfreq_init(struct panfrost_device *pfdev)
 		return 0;
 	}
 
-	ret = devm_pm_opp_set_regulators(dev, pfdev->comp->supply_names,
-					 pfdev->comp->num_supplies);
+	ret = devm_pm_opp_set_config(dev, &config);
 	if (ret) {
 		/* Continue if the optional regulator is missing */
 		if (ret != -ENODEV) {
 			if (ret != -EPROBE_DEFER)
-				DRM_DEV_ERROR(dev, "Couldn't set OPP regulators\n");
+				DRM_DEV_ERROR(dev, "Couldn't set OPP config\n");
 			return ret;
 		}
 	}
-- 
2.31.1.272.g89b43f80a514

[PATCH V2 15/30] drm/panfrost: Migrate to dev_pm_opp_set_config()

[Viresh Kumar]

The OPP core now provides a unified API for setting all configuration
types, i.e. dev_pm_opp_set_config().

Lets start using it.

Acked-by: Steven Price <steven.price@arm.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/gpu/drm/panfrost/panfrost_devfreq.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/panfrost/panfrost_devfreq.c b/drivers/gpu/drm/panfrost/panfrost_devfreq.c
index 194af7f607a6..7826d9366d35 100644
--- a/drivers/gpu/drm/panfrost/panfrost_devfreq.c
+++ b/drivers/gpu/drm/panfrost/panfrost_devfreq.c
@@ -91,6 +91,10 @@ int panfrost_devfreq_init(struct panfrost_device *pfdev)
 	struct devfreq *devfreq;
 	struct thermal_cooling_device *cooling;
 	struct panfrost_devfreq *pfdevfreq = &pfdev->pfdevfreq;
+	struct dev_pm_opp_config config = {
+		.regulator_names = pfdev->comp->supply_names,
+		.regulator_count = pfdev->comp->num_supplies,
+	};
 
 	if (pfdev->comp->num_supplies > 1) {
 		/*
@@ -101,13 +105,12 @@ int panfrost_devfreq_init(struct panfrost_device *pfdev)
 		return 0;
 	}
 
-	ret = devm_pm_opp_set_regulators(dev, pfdev->comp->supply_names,
-					 pfdev->comp->num_supplies);
+	ret = devm_pm_opp_set_config(dev, &config);
 	if (ret) {
 		/* Continue if the optional regulator is missing */
 		if (ret != -ENODEV) {
 			if (ret != -EPROBE_DEFER)
-				DRM_DEV_ERROR(dev, "Couldn't set OPP regulators\n");
+				DRM_DEV_ERROR(dev, "Couldn't set OPP config\n");
 			return ret;
 		}
 	}
-- 
2.31.1.272.g89b43f80a514

[PATCH V2 16/30] drm/tegra: Migrate to dev_pm_opp_set_config()

[Viresh Kumar]

The OPP core now provides a unified API for setting all configuration
types, i.e. dev_pm_opp_set_config().

Lets start using it.

Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/gpu/drm/tegra/gr3d.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/tegra/gr3d.c b/drivers/gpu/drm/tegra/gr3d.c
index a1fd3113ea96..05c45c104e13 100644
--- a/drivers/gpu/drm/tegra/gr3d.c
+++ b/drivers/gpu/drm/tegra/gr3d.c
@@ -389,6 +389,10 @@ static int gr3d_init_power(struct device *dev, struct gr3d *gr3d)
 	struct device_link *link;
 	unsigned int i;
 	int err;
+	struct dev_pm_opp_config config = {
+		.genpd_names = opp_genpd_names,
+		.virt_devs = &opp_virt_devs,
+	};
 
 	err = of_count_phandle_with_args(dev->of_node, "power-domains",
 					 "#power-domain-cells");
@@ -421,7 +425,7 @@ static int gr3d_init_power(struct device *dev, struct gr3d *gr3d)
 	if (dev->pm_domain)
 		return 0;
 
-	err = devm_pm_opp_attach_genpd(dev, opp_genpd_names, &opp_virt_devs);
+	err = devm_pm_opp_set_config(dev, &config);
 	if (err)
 		return err;
 
-- 
2.31.1.272.g89b43f80a514

[PATCH V2 16/30] drm/tegra: Migrate to dev_pm_opp_set_config()

[Viresh Kumar]

The OPP core now provides a unified API for setting all configuration
types, i.e. dev_pm_opp_set_config().

Lets start using it.

Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/gpu/drm/tegra/gr3d.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/tegra/gr3d.c b/drivers/gpu/drm/tegra/gr3d.c
index a1fd3113ea96..05c45c104e13 100644
--- a/drivers/gpu/drm/tegra/gr3d.c
+++ b/drivers/gpu/drm/tegra/gr3d.c
@@ -389,6 +389,10 @@ static int gr3d_init_power(struct device *dev, struct gr3d *gr3d)
 	struct device_link *link;
 	unsigned int i;
 	int err;
+	struct dev_pm_opp_config config = {
+		.genpd_names = opp_genpd_names,
+		.virt_devs = &opp_virt_devs,
+	};
 
 	err = of_count_phandle_with_args(dev->of_node, "power-domains",
 					 "#power-domain-cells");
@@ -421,7 +425,7 @@ static int gr3d_init_power(struct device *dev, struct gr3d *gr3d)
 	if (dev->pm_domain)
 		return 0;
 
-	err = devm_pm_opp_attach_genpd(dev, opp_genpd_names, &opp_virt_devs);
+	err = devm_pm_opp_set_config(dev, &config);
 	if (err)
 		return err;
 
-- 
2.31.1.272.g89b43f80a514

[PATCH V2 17/30] media: venus: Migrate to dev_pm_opp_set_config()

[Viresh Kumar]

The OPP core now provides a unified API for setting all configuration
types, i.e. dev_pm_opp_set_config().

Lets start using it.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/media/platform/qcom/venus/pm_helpers.c | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
index cb48c5ff3dee..f68cc938ebff 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.c
+++ b/drivers/media/platform/qcom/venus/pm_helpers.c
@@ -294,12 +294,16 @@ static int load_scale_v1(struct venus_inst *inst)
 static int core_get_v1(struct venus_core *core)
 {
 	int ret;
+	struct dev_pm_opp_config config = {
+		.clk_names = (const char *[]){ "core" },
+		.clk_count = 1,
+	};
 
 	ret = core_clks_get(core);
 	if (ret)
 		return ret;
 
-	ret = devm_pm_opp_set_clkname(core->dev, "core");
+	ret = devm_pm_opp_set_config(core->dev, &config);
 	if (ret)
 		return ret;
 
@@ -862,6 +866,10 @@ static int vcodec_domains_get(struct venus_core *core)
 	const struct venus_resources *res = core->res;
 	struct device *pd;
 	unsigned int i;
+	struct dev_pm_opp_config config = {
+		.genpd_names = res->opp_pmdomain,
+		.virt_devs = &opp_virt_dev,
+	};
 
 	if (!res->vcodec_pmdomains_num)
 		goto skip_pmdomains;
@@ -879,7 +887,7 @@ static int vcodec_domains_get(struct venus_core *core)
 		return 0;
 
 	/* Attach the power domain for setting performance state */
-	ret = devm_pm_opp_attach_genpd(dev, res->opp_pmdomain, &opp_virt_dev);
+	ret = devm_pm_opp_set_config(dev, &config);
 	if (ret)
 		goto opp_attach_err;
 
@@ -978,6 +986,10 @@ static int core_get_v4(struct venus_core *core)
 	struct device *dev = core->dev;
 	const struct venus_resources *res = core->res;
 	int ret;
+	struct dev_pm_opp_config config = {
+		.clk_names = (const char *[]){ "core" },
+		.clk_count = 1,
+	};
 
 	ret = core_clks_get(core);
 	if (ret)
@@ -1003,7 +1015,7 @@ static int core_get_v4(struct venus_core *core)
 	if (legacy_binding)
 		return 0;
 
-	ret = devm_pm_opp_set_clkname(dev, "core");
+	ret = devm_pm_opp_set_config(dev, &config);
 	if (ret)
 		return ret;
 
-- 
2.31.1.272.g89b43f80a514

[PATCH V2 18/30] memory: tegra: Migrate to dev_pm_opp_set_config()

[Viresh Kumar]

The OPP core now provides a unified API for setting all configuration
types, i.e. dev_pm_opp_set_config().

Lets start using it.

Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/memory/tegra/tegra124-emc.c | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/drivers/memory/tegra/tegra124-emc.c b/drivers/memory/tegra/tegra124-emc.c
index 908f8d5392b2..8da6baa4c369 100644
--- a/drivers/memory/tegra/tegra124-emc.c
+++ b/drivers/memory/tegra/tegra124-emc.c
@@ -1395,15 +1395,18 @@ static int tegra_emc_interconnect_init(struct tegra_emc *emc)
 static int tegra_emc_opp_table_init(struct tegra_emc *emc)
 {
 	u32 hw_version = BIT(tegra_sku_info.soc_speedo_id);
-	struct opp_table *hw_opp_table;
-	int err;
+	int opp_token, err;
+	struct dev_pm_opp_config config = {
+		.supported_hw = &hw_version,
+		.supported_hw_count = 1,
+	};
 
-	hw_opp_table = dev_pm_opp_set_supported_hw(emc->dev, &hw_version, 1);
-	err = PTR_ERR_OR_ZERO(hw_opp_table);
-	if (err) {
-		dev_err(emc->dev, "failed to set OPP supported HW: %d\n", err);
+	err = dev_pm_opp_set_config(emc->dev, &config);
+	if (err < 0) {
+		dev_err(emc->dev, "failed to set OPP config: %d\n", err);
 		return err;
 	}
+	opp_token = err;
 
 	err = dev_pm_opp_of_add_table(emc->dev);
 	if (err) {
@@ -1430,7 +1433,7 @@ static int tegra_emc_opp_table_init(struct tegra_emc *emc)
 remove_table:
 	dev_pm_opp_of_remove_table(emc->dev);
 put_hw_table:
-	dev_pm_opp_put_supported_hw(hw_opp_table);
+	dev_pm_opp_clear_config(opp_token);
 
 	return err;
 }
-- 
2.31.1.272.g89b43f80a514

[PATCH V2 19/30] mmc: sdhci-msm: Migrate to dev_pm_opp_set_config()

[Viresh Kumar]

The OPP core now provides a unified API for setting all configuration
types, i.e. dev_pm_opp_set_config().

Lets start using it.

Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
Ulf, I have kept your Ack as the diff is really small, clk_names is an array
now.

 drivers/mmc/host/sdhci-msm.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c
index e395411fb6fd..a018b45c5a9a 100644
--- a/drivers/mmc/host/sdhci-msm.c
+++ b/drivers/mmc/host/sdhci-msm.c
@@ -2559,6 +2559,10 @@ static int sdhci_msm_probe(struct platform_device *pdev)
 	const struct sdhci_msm_offset *msm_offset;
 	const struct sdhci_msm_variant_info *var_info;
 	struct device_node *node = pdev->dev.of_node;
+	struct dev_pm_opp_config opp_config = {
+		.clk_names = (const char *[]){ "core" },
+		.clk_count = 1,
+	};
 
 	host = sdhci_pltfm_init(pdev, &sdhci_msm_pdata, sizeof(*msm_host));
 	if (IS_ERR(host))
@@ -2631,7 +2635,7 @@ static int sdhci_msm_probe(struct platform_device *pdev)
 	if (ret)
 		goto bus_clk_disable;
 
-	ret = devm_pm_opp_set_clkname(&pdev->dev, "core");
+	ret = devm_pm_opp_set_config(&pdev->dev, &opp_config);
 	if (ret)
 		goto bus_clk_disable;
 
-- 
2.31.1.272.g89b43f80a514

[PATCH V2 20/30] OPP: ti: Migrate to dev_pm_opp_set_config()

[Viresh Kumar]

The OPP core now provides a unified API for setting all configuration
types, i.e. dev_pm_opp_set_config().

Lets start using it.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/opp/ti-opp-supply.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/opp/ti-opp-supply.c b/drivers/opp/ti-opp-supply.c
index bd4771f388ab..26e929377ebd 100644
--- a/drivers/opp/ti-opp-supply.c
+++ b/drivers/opp/ti-opp-supply.c
@@ -382,6 +382,9 @@ static int ti_opp_supply_probe(struct platform_device *pdev)
 	const struct of_device_id *match;
 	const struct ti_opp_supply_of_data *of_data;
 	int ret = 0;
+	struct dev_pm_opp_config config = {
+		.set_opp = ti_opp_supply_set_opp,
+	};
 
 	match = of_match_device(ti_opp_supply_of_match, dev);
 	if (!match) {
@@ -405,9 +408,8 @@ static int ti_opp_supply_probe(struct platform_device *pdev)
 			return ret;
 	}
 
-	ret = PTR_ERR_OR_ZERO(dev_pm_opp_register_set_opp_helper(cpu_dev,
-								 ti_opp_supply_set_opp));
-	if (ret)
+	ret = dev_pm_opp_set_config(cpu_dev, &config);
+	if (ret < 0)
 		_free_optimized_voltages(dev, &opp_data);
 
 	return ret;
-- 
2.31.1.272.g89b43f80a514

[PATCH V2 21/30] soc/tegra: Add comment over devm_pm_opp_set_clkname()

[Viresh Kumar]

Explain why special handling was required here, it isn't obvious at all.

Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/soc/tegra/common.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/soc/tegra/common.c b/drivers/soc/tegra/common.c
index 32c346b72635..9f3fdeb1a11c 100644
--- a/drivers/soc/tegra/common.c
+++ b/drivers/soc/tegra/common.c
@@ -108,6 +108,13 @@ int devm_tegra_core_dev_init_opp_table(struct device *dev,
 	u32 hw_version;
 	int err;
 
+	/*
+	 * For some devices we don't have any OPP table in the DT, and in order
+	 * to use the same code path for all the devices, we create a dummy OPP
+	 * table for them via this call. The dummy OPP table is only capable of
+	 * doing clk_set_rate() on invocation of dev_pm_opp_set_rate() and
+	 * doesn't provide any other functionality.
+	 */
 	err = devm_pm_opp_set_clkname(dev, NULL);
 	if (err) {
 		dev_err(dev, "failed to set OPP clk: %d\n", err);
-- 
2.31.1.272.g89b43f80a514

[PATCH V2 22/30] soc/tegra: Migrate to dev_pm_opp_set_config()

[Viresh Kumar]

The OPP core now provides a unified API for setting all configuration
types, i.e. dev_pm_opp_set_config().

Lets start using it.

Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/soc/tegra/common.c | 52 +++++++++++++++++++++-----------------
 drivers/soc/tegra/pmc.c    |  8 ++++--
 2 files changed, 35 insertions(+), 25 deletions(-)

diff --git a/drivers/soc/tegra/common.c b/drivers/soc/tegra/common.c
index 9f3fdeb1a11c..6a099d764cce 100644
--- a/drivers/soc/tegra/common.c
+++ b/drivers/soc/tegra/common.c
@@ -107,36 +107,42 @@ int devm_tegra_core_dev_init_opp_table(struct device *dev,
 {
 	u32 hw_version;
 	int err;
-
-	/*
-	 * For some devices we don't have any OPP table in the DT, and in order
-	 * to use the same code path for all the devices, we create a dummy OPP
-	 * table for them via this call. The dummy OPP table is only capable of
-	 * doing clk_set_rate() on invocation of dev_pm_opp_set_rate() and
-	 * doesn't provide any other functionality.
-	 */
-	err = devm_pm_opp_set_clkname(dev, NULL);
-	if (err) {
-		dev_err(dev, "failed to set OPP clk: %d\n", err);
-		return err;
-	}
-
-	/* Tegra114+ doesn't support OPP yet */
-	if (!of_machine_is_compatible("nvidia,tegra20") &&
-	    !of_machine_is_compatible("nvidia,tegra30"))
-		return -ENODEV;
-
-	if (of_machine_is_compatible("nvidia,tegra20"))
+	struct dev_pm_opp_config config = {
+		/*
+		 * For some devices we don't have any OPP table in the DT, and
+		 * in order to use the same code path for all the devices, we
+		 * create a dummy OPP table for them via this. The dummy OPP
+		 * table is only capable of doing clk_set_rate() on invocation
+		 * of dev_pm_opp_set_rate() and doesn't provide any other
+		 * functionality.
+		 */
+		.clk_names = (const char *[]){ NULL },
+		.clk_count = 1,
+	};
+
+	if (of_machine_is_compatible("nvidia,tegra20")) {
 		hw_version = BIT(tegra_sku_info.soc_process_id);
-	else
+		config.supported_hw = &hw_version;
+		config.supported_hw_count = 1;
+	} else if (of_machine_is_compatible("nvidia,tegra30")) {
 		hw_version = BIT(tegra_sku_info.soc_speedo_id);
+		config.supported_hw = &hw_version;
+		config.supported_hw_count = 1;
+	}
 
-	err = devm_pm_opp_set_supported_hw(dev, &hw_version, 1);
+	err = devm_pm_opp_set_config(dev, &config);
 	if (err) {
-		dev_err(dev, "failed to set OPP supported HW: %d\n", err);
+		dev_err(dev, "failed to set OPP config: %d\n", err);
 		return err;
 	}
 
+	/*
+	 * Tegra114+ doesn't support OPP yet, return early for non tegra20/30
+	 * case.
+	 */
+	if (!config.supported_hw)
+		return -ENODEV;
+
 	/*
 	 * Older device-trees have an empty OPP table, we will get
 	 * -ENODEV from devm_pm_opp_of_add_table() in this case.
diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c
index 5611d14d3ba2..64d74a227261 100644
--- a/drivers/soc/tegra/pmc.c
+++ b/drivers/soc/tegra/pmc.c
@@ -1386,6 +1386,10 @@ static int tegra_pmc_core_pd_add(struct tegra_pmc *pmc, struct device_node *np)
 	struct generic_pm_domain *genpd;
 	const char *rname = "core";
 	int err;
+	struct dev_pm_opp_config config = {
+		.regulator_names = &rname,
+		.regulator_count = 1,
+	};
 
 	genpd = devm_kzalloc(pmc->dev, sizeof(*genpd), GFP_KERNEL);
 	if (!genpd)
@@ -1395,10 +1399,10 @@ static int tegra_pmc_core_pd_add(struct tegra_pmc *pmc, struct device_node *np)
 	genpd->set_performance_state = tegra_pmc_core_pd_set_performance_state;
 	genpd->opp_to_performance_state = tegra_pmc_core_pd_opp_to_performance_state;
 
-	err = devm_pm_opp_set_regulators(pmc->dev, &rname, 1);
+	err = devm_pm_opp_set_config(pmc->dev, &config);
 	if (err)
 		return dev_err_probe(pmc->dev, err,
-				     "failed to set core OPP regulator\n");
+				     "failed to set OPP config\n");
 
 	err = pm_genpd_init(genpd, NULL, false);
 	if (err) {
-- 
2.31.1.272.g89b43f80a514

[PATCH V2 23/30] spi: qcom: Migrate to dev_pm_opp_set_config()

[Viresh Kumar]

The OPP core now provides a unified API for setting all configuration
types, i.e. dev_pm_opp_set_config().

Lets start using it.

Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
Mark, I have kept your Ack as the diff is really small, clk_names is an array
now.

 drivers/spi/spi-geni-qcom.c | 6 +++++-
 drivers/spi/spi-qcom-qspi.c | 6 +++++-
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/spi-geni-qcom.c b/drivers/spi/spi-geni-qcom.c
index 4e83cc5b445d..428585bae6a8 100644
--- a/drivers/spi/spi-geni-qcom.c
+++ b/drivers/spi/spi-geni-qcom.c
@@ -892,6 +892,10 @@ static int spi_geni_probe(struct platform_device *pdev)
 	void __iomem *base;
 	struct clk *clk;
 	struct device *dev = &pdev->dev;
+	struct dev_pm_opp_config config = {
+		.clk_names = (const char *[]){ "se" },
+		.clk_count = 1,
+	};
 
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0)
@@ -922,7 +926,7 @@ static int spi_geni_probe(struct platform_device *pdev)
 	mas->se.base = base;
 	mas->se.clk = clk;
 
-	ret = devm_pm_opp_set_clkname(&pdev->dev, "se");
+	ret = devm_pm_opp_set_config(&pdev->dev, &config);
 	if (ret)
 		return ret;
 	/* OPP table is optional */
diff --git a/drivers/spi/spi-qcom-qspi.c b/drivers/spi/spi-qcom-qspi.c
index c334dfec4117..7e7732d61b25 100644
--- a/drivers/spi/spi-qcom-qspi.c
+++ b/drivers/spi/spi-qcom-qspi.c
@@ -458,6 +458,10 @@ static int qcom_qspi_probe(struct platform_device *pdev)
 	struct device *dev;
 	struct spi_master *master;
 	struct qcom_qspi *ctrl;
+	struct dev_pm_opp_config config = {
+		.clk_names = (const char *[]){ "core" },
+		.clk_count = 1,
+	};
 
 	dev = &pdev->dev;
 
@@ -529,7 +533,7 @@ static int qcom_qspi_probe(struct platform_device *pdev)
 	master->handle_err = qcom_qspi_handle_err;
 	master->auto_runtime_pm = true;
 
-	ret = devm_pm_opp_set_clkname(&pdev->dev, "core");
+	ret = devm_pm_opp_set_config(&pdev->dev, &config);
 	if (ret)
 		return ret;
 	/* OPP table is optional */
-- 
2.31.1.272.g89b43f80a514

[PATCH V2 24/30] serial: qcom: Migrate to dev_pm_opp_set_config()

[Viresh Kumar]

The OPP core now provides a unified API for setting all configuration
types, i.e. dev_pm_opp_set_config().

Lets start using it.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/tty/serial/qcom_geni_serial.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c
index 4733a233bd0c..ab667838d082 100644
--- a/drivers/tty/serial/qcom_geni_serial.c
+++ b/drivers/tty/serial/qcom_geni_serial.c
@@ -1347,6 +1347,10 @@ static int qcom_geni_serial_probe(struct platform_device *pdev)
 	int irq;
 	bool console = false;
 	struct uart_driver *drv;
+	struct dev_pm_opp_config config = {
+		.clk_names = (const char *[]){ "se" },
+		.clk_count = 1,
+	};
 
 	if (of_device_is_compatible(pdev->dev.of_node, "qcom,geni-debug-uart"))
 		console = true;
@@ -1430,7 +1434,7 @@ static int qcom_geni_serial_probe(struct platform_device *pdev)
 	if (of_property_read_bool(pdev->dev.of_node, "cts-rts-swap"))
 		port->cts_rts_swap = true;
 
-	ret = devm_pm_opp_set_clkname(&pdev->dev, "se");
+	ret = devm_pm_opp_set_config(&pdev->dev, &config);
 	if (ret)
 		return ret;
 	/* OPP table is optional */
-- 
2.31.1.272.g89b43f80a514

[PATCH V2 25/30] OPP: Remove dev_pm_opp_set_regulators() and friends

[Viresh Kumar]

Now that everyone has migrated to dev_pm_opp_set_config(), remove the
public interface for dev_pm_opp_set_regulators() and friends.

Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/opp/core.c     | 93 +++++++++---------------------------------
 include/linux/pm_opp.h | 17 --------
 2 files changed, 19 insertions(+), 91 deletions(-)

diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index c77ea05ee2cd..fc3cd87ee7df 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -991,8 +991,8 @@ static int _set_opp_custom(const struct opp_table *opp_table,
 	int size;
 
 	/*
-	 * We support this only if dev_pm_opp_set_regulators() was called
-	 * earlier.
+	 * We support this only if dev_pm_opp_set_config() was called
+	 * earlier to set regulators.
 	 */
 	if (opp_table->sod_supplies) {
 		size = sizeof(*old_opp->supplies) * opp_table->regulator_count;
@@ -2097,7 +2097,7 @@ void dev_pm_opp_put_prop_name(struct opp_table *opp_table)
 EXPORT_SYMBOL_GPL(dev_pm_opp_put_prop_name);
 
 /**
- * dev_pm_opp_set_regulators() - Set regulator names for the device
+ * _opp_set_regulators() - Set regulator names for the device
  * @dev: Device for which regulator name is being set.
  * @names: Array of pointers to the names of the regulator.
  * @count: Number of regulators.
@@ -2108,36 +2108,22 @@ EXPORT_SYMBOL_GPL(dev_pm_opp_put_prop_name);
  *
  * This must be called before any OPPs are initialized for the device.
  */
-struct opp_table *dev_pm_opp_set_regulators(struct device *dev,
-					    const char * const names[],
-					    unsigned int count)
+static int _opp_set_regulators(struct opp_table *opp_table, struct device *dev,
+			       const char * const names[], unsigned int count)
 {
 	struct dev_pm_opp_supply *supplies;
-	struct opp_table *opp_table;
 	struct regulator *reg;
 	int ret, i;
 
-	opp_table = _add_opp_table(dev, false);
-	if (IS_ERR(opp_table))
-		return opp_table;
-
-	/* This should be called before OPPs are initialized */
-	if (WARN_ON(!list_empty(&opp_table->opp_list))) {
-		ret = -EBUSY;
-		goto err;
-	}
-
 	/* Another CPU that shares the OPP table has set the regulators ? */
 	if (opp_table->regulators)
-		return opp_table;
+		return 0;
 
 	opp_table->regulators = kmalloc_array(count,
 					      sizeof(*opp_table->regulators),
 					      GFP_KERNEL);
-	if (!opp_table->regulators) {
-		ret = -ENOMEM;
-		goto err;
-	}
+	if (!opp_table->regulators)
+		return -ENOMEM;
 
 	for (i = 0; i < count; i++) {
 		reg = regulator_get_optional(dev, names[i]);
@@ -2167,7 +2153,7 @@ struct opp_table *dev_pm_opp_set_regulators(struct device *dev,
 	}
 	mutex_unlock(&opp_table->lock);
 
-	return opp_table;
+	return 0;
 
 free_regulators:
 	while (i != 0)
@@ -2176,26 +2162,20 @@ struct opp_table *dev_pm_opp_set_regulators(struct device *dev,
 	kfree(opp_table->regulators);
 	opp_table->regulators = NULL;
 	opp_table->regulator_count = -1;
-err:
-	dev_pm_opp_put_opp_table(opp_table);
 
-	return ERR_PTR(ret);
+	return ret;
 }
-EXPORT_SYMBOL_GPL(dev_pm_opp_set_regulators);
 
 /**
- * dev_pm_opp_put_regulators() - Releases resources blocked for regulator
- * @opp_table: OPP table returned from dev_pm_opp_set_regulators().
+ * _opp_put_regulators() - Releases resources blocked for regulator
+ * @opp_table: OPP table returned from _opp_set_regulators().
  */
-void dev_pm_opp_put_regulators(struct opp_table *opp_table)
+static void _opp_put_regulators(struct opp_table *opp_table)
 {
 	int i;
 
-	if (unlikely(!opp_table))
-		return;
-
 	if (!opp_table->regulators)
-		goto put_opp_table;
+		return;
 
 	if (opp_table->enabled) {
 		for (i = opp_table->regulator_count - 1; i >= 0; i--)
@@ -2218,41 +2198,7 @@ void dev_pm_opp_put_regulators(struct opp_table *opp_table)
 	kfree(opp_table->regulators);
 	opp_table->regulators = NULL;
 	opp_table->regulator_count = -1;
-
-put_opp_table:
-	dev_pm_opp_put_opp_table(opp_table);
-}
-EXPORT_SYMBOL_GPL(dev_pm_opp_put_regulators);
-
-static void devm_pm_opp_regulators_release(void *data)
-{
-	dev_pm_opp_put_regulators(data);
-}
-
-/**
- * devm_pm_opp_set_regulators() - Set regulator names for the device
- * @dev: Device for which regulator name is being set.
- * @names: Array of pointers to the names of the regulator.
- * @count: Number of regulators.
- *
- * This is a resource-managed variant of dev_pm_opp_set_regulators().
- *
- * Return: 0 on success and errorno otherwise.
- */
-int devm_pm_opp_set_regulators(struct device *dev,
-			       const char * const names[],
-			       unsigned int count)
-{
-	struct opp_table *opp_table;
-
-	opp_table = dev_pm_opp_set_regulators(dev, names, count);
-	if (IS_ERR(opp_table))
-		return PTR_ERR(opp_table);
-
-	return devm_add_action_or_reset(dev, devm_pm_opp_regulators_release,
-					opp_table);
 }
-EXPORT_SYMBOL_GPL(devm_pm_opp_set_regulators);
 
 /**
  * dev_pm_opp_set_clkname() - Set clk name for the device
@@ -2627,7 +2573,7 @@ static void _opp_clear_config(struct opp_config_data *data)
 	if (data->flags & OPP_CONFIG_GENPD)
 		dev_pm_opp_detach_genpd(data->opp_table);
 	if (data->flags & OPP_CONFIG_REGULATOR)
-		dev_pm_opp_put_regulators(data->opp_table);
+		_opp_put_regulators(data->opp_table);
 	if (data->flags & OPP_CONFIG_SUPPORTED_HW)
 		dev_pm_opp_put_supported_hw(data->opp_table);
 	if (data->flags & OPP_CONFIG_REGULATOR_HELPER)
@@ -2737,12 +2683,11 @@ int dev_pm_opp_set_config(struct device *dev, struct dev_pm_opp_config *config)
 
 	/* Configure supplies */
 	if (config->regulator_names) {
-		err = dev_pm_opp_set_regulators(dev, config->regulator_names,
-						config->regulator_count);
-		if (IS_ERR(err)) {
-			ret = PTR_ERR(err);
+		ret = _opp_set_regulators(opp_table, dev,
+					  config->regulator_names,
+					  config->regulator_count);
+		if (ret)
 			goto err;
-		}
 
 		data->flags |= OPP_CONFIG_REGULATOR;
 	}
diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h
index 467bed35130e..0dc45d4403ce 100644
--- a/include/linux/pm_opp.h
+++ b/include/linux/pm_opp.h
@@ -192,9 +192,6 @@ void dev_pm_opp_put_supported_hw(struct opp_table *opp_table);
 int devm_pm_opp_set_supported_hw(struct device *dev, const u32 *versions, unsigned int count);
 struct opp_table *dev_pm_opp_set_prop_name(struct device *dev, const char *name);
 void dev_pm_opp_put_prop_name(struct opp_table *opp_table);
-struct opp_table *dev_pm_opp_set_regulators(struct device *dev, const char * const names[], unsigned int count);
-void dev_pm_opp_put_regulators(struct opp_table *opp_table);
-int devm_pm_opp_set_regulators(struct device *dev, const char * const names[], unsigned int count);
 struct opp_table *dev_pm_opp_set_clkname(struct device *dev, const char *name);
 void dev_pm_opp_put_clkname(struct opp_table *opp_table);
 int devm_pm_opp_set_clkname(struct device *dev, const char *name);
@@ -412,20 +409,6 @@ static inline struct opp_table *dev_pm_opp_set_prop_name(struct device *dev, con
 
 static inline void dev_pm_opp_put_prop_name(struct opp_table *opp_table) {}
 
-static inline struct opp_table *dev_pm_opp_set_regulators(struct device *dev, const char * const names[], unsigned int count)
-{
-	return ERR_PTR(-EOPNOTSUPP);
-}
-
-static inline void dev_pm_opp_put_regulators(struct opp_table *opp_table) {}
-
-static inline int devm_pm_opp_set_regulators(struct device *dev,
-					     const char * const names[],
-					     unsigned int count)
-{
-	return -EOPNOTSUPP;
-}
-
 static inline struct opp_table *dev_pm_opp_set_clkname(struct device *dev, const char *name)
 {
 	return ERR_PTR(-EOPNOTSUPP);
-- 
2.31.1.272.g89b43f80a514

[PATCH V2 26/30] OPP: Remove dev_pm_opp_set_supported_hw() and friends

[Viresh Kumar]

Now that everyone has migrated to dev_pm_opp_set_config(), remove the
public interface for dev_pm_opp_set_supported_hw() and friends.

Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/opp/core.c     | 87 ++++++++++--------------------------------
 include/linux/pm_opp.h | 19 ---------
 2 files changed, 20 insertions(+), 86 deletions(-)

diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index fc3cd87ee7df..66ffe501a7c8 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -1952,7 +1952,7 @@ int _opp_add_v1(struct opp_table *opp_table, struct device *dev,
 }
 
 /**
- * dev_pm_opp_set_supported_hw() - Set supported platforms
+ * _opp_set_supported_hw() - Set supported platforms
  * @dev: Device for which supported-hw has to be set.
  * @versions: Array of hierarchy of versions to match.
  * @count: Number of elements in the array.
@@ -1962,84 +1962,39 @@ int _opp_add_v1(struct opp_table *opp_table, struct device *dev,
  * OPPs, which are available for those versions, based on its 'opp-supported-hw'
  * property.
  */
-struct opp_table *dev_pm_opp_set_supported_hw(struct device *dev,
-			const u32 *versions, unsigned int count)
+static int _opp_set_supported_hw(struct opp_table *opp_table,
+				 const u32 *versions, unsigned int count)
 {
-	struct opp_table *opp_table;
-
-	opp_table = _add_opp_table(dev, false);
-	if (IS_ERR(opp_table))
-		return opp_table;
-
-	/* Make sure there are no concurrent readers while updating opp_table */
-	WARN_ON(!list_empty(&opp_table->opp_list));
-
 	/* Another CPU that shares the OPP table has set the property ? */
 	if (opp_table->supported_hw)
-		return opp_table;
+		return 0;
 
 	opp_table->supported_hw = kmemdup(versions, count * sizeof(*versions),
 					GFP_KERNEL);
-	if (!opp_table->supported_hw) {
-		dev_pm_opp_put_opp_table(opp_table);
-		return ERR_PTR(-ENOMEM);
-	}
+	if (!opp_table->supported_hw)
+		return -ENOMEM;
 
 	opp_table->supported_hw_count = count;
 
-	return opp_table;
+	return 0;
 }
-EXPORT_SYMBOL_GPL(dev_pm_opp_set_supported_hw);
 
 /**
- * dev_pm_opp_put_supported_hw() - Releases resources blocked for supported hw
- * @opp_table: OPP table returned by dev_pm_opp_set_supported_hw().
+ * _opp_put_supported_hw() - Releases resources blocked for supported hw
+ * @opp_table: OPP table returned by _opp_set_supported_hw().
  *
  * This is required only for the V2 bindings, and is called for a matching
- * dev_pm_opp_set_supported_hw(). Until this is called, the opp_table structure
+ * _opp_set_supported_hw(). Until this is called, the opp_table structure
  * will not be freed.
  */
-void dev_pm_opp_put_supported_hw(struct opp_table *opp_table)
+static void _opp_put_supported_hw(struct opp_table *opp_table)
 {
-	if (unlikely(!opp_table))
-		return;
-
-	kfree(opp_table->supported_hw);
-	opp_table->supported_hw = NULL;
-	opp_table->supported_hw_count = 0;
-
-	dev_pm_opp_put_opp_table(opp_table);
-}
-EXPORT_SYMBOL_GPL(dev_pm_opp_put_supported_hw);
-
-static void devm_pm_opp_supported_hw_release(void *data)
-{
-	dev_pm_opp_put_supported_hw(data);
-}
-
-/**
- * devm_pm_opp_set_supported_hw() - Set supported platforms
- * @dev: Device for which supported-hw has to be set.
- * @versions: Array of hierarchy of versions to match.
- * @count: Number of elements in the array.
- *
- * This is a resource-managed variant of dev_pm_opp_set_supported_hw().
- *
- * Return: 0 on success and errorno otherwise.
- */
-int devm_pm_opp_set_supported_hw(struct device *dev, const u32 *versions,
-				 unsigned int count)
-{
-	struct opp_table *opp_table;
-
-	opp_table = dev_pm_opp_set_supported_hw(dev, versions, count);
-	if (IS_ERR(opp_table))
-		return PTR_ERR(opp_table);
-
-	return devm_add_action_or_reset(dev, devm_pm_opp_supported_hw_release,
-					opp_table);
+	if (opp_table->supported_hw) {
+		kfree(opp_table->supported_hw);
+		opp_table->supported_hw = NULL;
+		opp_table->supported_hw_count = 0;
+	}
 }
-EXPORT_SYMBOL_GPL(devm_pm_opp_set_supported_hw);
 
 /**
  * dev_pm_opp_set_prop_name() - Set prop-extn name
@@ -2575,7 +2530,7 @@ static void _opp_clear_config(struct opp_config_data *data)
 	if (data->flags & OPP_CONFIG_REGULATOR)
 		_opp_put_regulators(data->opp_table);
 	if (data->flags & OPP_CONFIG_SUPPORTED_HW)
-		dev_pm_opp_put_supported_hw(data->opp_table);
+		_opp_put_supported_hw(data->opp_table);
 	if (data->flags & OPP_CONFIG_REGULATOR_HELPER)
 		dev_pm_opp_unregister_set_opp_helper(data->opp_table);
 	if (data->flags & OPP_CONFIG_PROP_NAME)
@@ -2671,12 +2626,10 @@ int dev_pm_opp_set_config(struct device *dev, struct dev_pm_opp_config *config)
 
 	/* Configure supported hardware */
 	if (config->supported_hw) {
-		err = dev_pm_opp_set_supported_hw(dev, config->supported_hw,
-						  config->supported_hw_count);
-		if (IS_ERR(err)) {
-			ret = PTR_ERR(err);
+		ret = _opp_set_supported_hw(opp_table, config->supported_hw,
+					    config->supported_hw_count);
+		if (ret)
 			goto err;
-		}
 
 		data->flags |= OPP_CONFIG_SUPPORTED_HW;
 	}
diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h
index 0dc45d4403ce..dfbb07b871a8 100644
--- a/include/linux/pm_opp.h
+++ b/include/linux/pm_opp.h
@@ -187,9 +187,6 @@ int dev_pm_opp_set_config(struct device *dev, struct dev_pm_opp_config *config);
 int devm_pm_opp_set_config(struct device *dev, struct dev_pm_opp_config *config);
 void dev_pm_opp_clear_config(int token);
 
-struct opp_table *dev_pm_opp_set_supported_hw(struct device *dev, const u32 *versions, unsigned int count);
-void dev_pm_opp_put_supported_hw(struct opp_table *opp_table);
-int devm_pm_opp_set_supported_hw(struct device *dev, const u32 *versions, unsigned int count);
 struct opp_table *dev_pm_opp_set_prop_name(struct device *dev, const char *name);
 void dev_pm_opp_put_prop_name(struct opp_table *opp_table);
 struct opp_table *dev_pm_opp_set_clkname(struct device *dev, const char *name);
@@ -372,22 +369,6 @@ static inline int dev_pm_opp_unregister_notifier(struct device *dev, struct noti
 	return -EOPNOTSUPP;
 }
 
-static inline struct opp_table *dev_pm_opp_set_supported_hw(struct device *dev,
-							    const u32 *versions,
-							    unsigned int count)
-{
-	return ERR_PTR(-EOPNOTSUPP);
-}
-
-static inline void dev_pm_opp_put_supported_hw(struct opp_table *opp_table) {}
-
-static inline int devm_pm_opp_set_supported_hw(struct device *dev,
-					       const u32 *versions,
-					       unsigned int count)
-{
-	return -EOPNOTSUPP;
-}
-
 static inline struct opp_table *dev_pm_opp_register_set_opp_helper(struct device *dev,
 			int (*set_opp)(struct dev_pm_set_opp_data *data))
 {
-- 
2.31.1.272.g89b43f80a514

[PATCH V2 27/30] OPP: Remove dev_pm_opp_set_clkname() and friends

[Viresh Kumar]

Now that everyone has migrated to dev_pm_opp_set_config(), remove the
public interface for dev_pm_opp_set_clkname() and friends.

Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/opp/core.c     | 118 +++++++++++------------------------------
 include/linux/pm_opp.h |  15 ------
 2 files changed, 32 insertions(+), 101 deletions(-)

diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index 66ffe501a7c8..9b4f67994993 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -2156,104 +2156,57 @@ static void _opp_put_regulators(struct opp_table *opp_table)
 }
 
 /**
- * dev_pm_opp_set_clkname() - Set clk name for the device
- * @dev: Device for which clk name is being set.
- * @name: Clk name.
- *
- * In order to support OPP switching, OPP layer needs to get pointer to the
- * clock for the device. Simple cases work fine without using this routine (i.e.
- * by passing connection-id as NULL), but for a device with multiple clocks
- * available, the OPP core needs to know the exact name of the clk to use.
+ * _opp_set_clknames() - Set clk names for the device
+ * @dev: Device for which clk names is being set.
+ * @names: Clk names.
+ *
+ * In order to support OPP switching, OPP layer needs to get pointers to the
+ * clocks for the device. Simple cases work fine without using this routine
+ * (i.e. by passing connection-id as NULL), but for a device with multiple
+ * clocks available, the OPP core needs to know the exact names of the clks to
+ * use.
  *
  * This must be called before any OPPs are initialized for the device.
  */
-struct opp_table *dev_pm_opp_set_clkname(struct device *dev, const char *name)
+static int _opp_set_clknames(struct opp_table *opp_table, struct device *dev,
+			     const char * const names[], unsigned int count)
 {
-	struct opp_table *opp_table;
-	int ret;
-
-	opp_table = _add_opp_table(dev, false);
-	if (IS_ERR(opp_table))
-		return opp_table;
-
-	/* This should be called before OPPs are initialized */
-	if (WARN_ON(!list_empty(&opp_table->opp_list))) {
-		ret = -EBUSY;
-		goto err;
-	}
+	/* We support only one clock name for now */
+	if (count != 1)
+		return -EINVAL;
 
 	/* Another CPU that shares the OPP table has set the clkname ? */
 	if (opp_table->clk_configured)
-		return opp_table;
+		return 0;
 
 	/* clk shouldn't be initialized at this point */
-	if (WARN_ON(opp_table->clk)) {
-		ret = -EBUSY;
-		goto err;
-	}
+	if (WARN_ON(opp_table->clk))
+		return -EBUSY;
 
 	/* Find clk for the device */
-	opp_table->clk = clk_get(dev, name);
+	opp_table->clk = clk_get(dev, names[0]);
 	if (IS_ERR(opp_table->clk)) {
-		ret = dev_err_probe(dev, PTR_ERR(opp_table->clk),
+		return dev_err_probe(dev, PTR_ERR(opp_table->clk),
 				    "%s: Couldn't find clock\n", __func__);
-		goto err;
 	}
 
 	opp_table->clk_configured = true;
 
-	return opp_table;
-
-err:
-	dev_pm_opp_put_opp_table(opp_table);
-
-	return ERR_PTR(ret);
-}
-EXPORT_SYMBOL_GPL(dev_pm_opp_set_clkname);
-
-/**
- * dev_pm_opp_put_clkname() - Releases resources blocked for clk.
- * @opp_table: OPP table returned from dev_pm_opp_set_clkname().
- */
-void dev_pm_opp_put_clkname(struct opp_table *opp_table)
-{
-	if (unlikely(!opp_table))
-		return;
-
-	clk_put(opp_table->clk);
-	opp_table->clk = ERR_PTR(-EINVAL);
-	opp_table->clk_configured = false;
-
-	dev_pm_opp_put_opp_table(opp_table);
-}
-EXPORT_SYMBOL_GPL(dev_pm_opp_put_clkname);
-
-static void devm_pm_opp_clkname_release(void *data)
-{
-	dev_pm_opp_put_clkname(data);
+	return 0;
 }
 
 /**
- * devm_pm_opp_set_clkname() - Set clk name for the device
- * @dev: Device for which clk name is being set.
- * @name: Clk name.
- *
- * This is a resource-managed variant of dev_pm_opp_set_clkname().
- *
- * Return: 0 on success and errorno otherwise.
+ * _opp_put_clknames() - Releases resources blocked for clks.
+ * @opp_table: OPP table returned from _opp_set_clknames().
  */
-int devm_pm_opp_set_clkname(struct device *dev, const char *name)
+static void _opp_put_clknames(struct opp_table *opp_table)
 {
-	struct opp_table *opp_table;
-
-	opp_table = dev_pm_opp_set_clkname(dev, name);
-	if (IS_ERR(opp_table))
-		return PTR_ERR(opp_table);
-
-	return devm_add_action_or_reset(dev, devm_pm_opp_clkname_release,
-					opp_table);
+	if (opp_table->clk_configured) {
+		clk_put(opp_table->clk);
+		opp_table->clk = ERR_PTR(-EINVAL);
+		opp_table->clk_configured = false;
+	}
 }
-EXPORT_SYMBOL_GPL(devm_pm_opp_set_clkname);
 
 /**
  * dev_pm_opp_register_set_opp_helper() - Register custom set OPP helper
@@ -2536,7 +2489,7 @@ static void _opp_clear_config(struct opp_config_data *data)
 	if (data->flags & OPP_CONFIG_PROP_NAME)
 		dev_pm_opp_put_prop_name(data->opp_table);
 	if (data->flags & OPP_CONFIG_CLK)
-		dev_pm_opp_put_clkname(data->opp_table);
+		_opp_put_clknames(data->opp_table);
 
 	dev_pm_opp_put_opp_table(data->opp_table);
 	kfree(data);
@@ -2587,17 +2540,10 @@ int dev_pm_opp_set_config(struct device *dev, struct dev_pm_opp_config *config)
 
 	/* Configure clocks */
 	if (config->clk_names) {
-		/* We support only one clock name for now */
-		if (config->clk_count != 1) {
-			ret = -EINVAL;
-			goto err;
-		}
-
-		err = dev_pm_opp_set_clkname(dev, config->clk_names[0]);
-		if (IS_ERR(err)) {
-			ret = PTR_ERR(err);
+		ret = _opp_set_clknames(opp_table, dev, config->clk_names,
+					config->clk_count);
+		if (ret)
 			goto err;
-		}
 
 		data->flags |= OPP_CONFIG_CLK;
 	}
diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h
index dfbb07b871a8..31062dc216f3 100644
--- a/include/linux/pm_opp.h
+++ b/include/linux/pm_opp.h
@@ -189,9 +189,6 @@ void dev_pm_opp_clear_config(int token);
 
 struct opp_table *dev_pm_opp_set_prop_name(struct device *dev, const char *name);
 void dev_pm_opp_put_prop_name(struct opp_table *opp_table);
-struct opp_table *dev_pm_opp_set_clkname(struct device *dev, const char *name);
-void dev_pm_opp_put_clkname(struct opp_table *opp_table);
-int devm_pm_opp_set_clkname(struct device *dev, const char *name);
 struct opp_table *dev_pm_opp_register_set_opp_helper(struct device *dev, int (*set_opp)(struct dev_pm_set_opp_data *data));
 void dev_pm_opp_unregister_set_opp_helper(struct opp_table *opp_table);
 int devm_pm_opp_register_set_opp_helper(struct device *dev, int (*set_opp)(struct dev_pm_set_opp_data *data));
@@ -390,18 +387,6 @@ static inline struct opp_table *dev_pm_opp_set_prop_name(struct device *dev, con
 
 static inline void dev_pm_opp_put_prop_name(struct opp_table *opp_table) {}
 
-static inline struct opp_table *dev_pm_opp_set_clkname(struct device *dev, const char *name)
-{
-	return ERR_PTR(-EOPNOTSUPP);
-}
-
-static inline void dev_pm_opp_put_clkname(struct opp_table *opp_table) {}
-
-static inline int devm_pm_opp_set_clkname(struct device *dev, const char *name)
-{
-	return -EOPNOTSUPP;
-}
-
 static inline struct opp_table *dev_pm_opp_attach_genpd(struct device *dev, const char * const *names, struct device ***virt_devs)
 {
 	return ERR_PTR(-EOPNOTSUPP);
-- 
2.31.1.272.g89b43f80a514

[PATCH V2 28/30] OPP: Remove dev_pm_opp_register_set_opp_helper() and friends

[Viresh Kumar]

Now that everyone has migrated to dev_pm_opp_set_config(), remove the
public interface for dev_pm_opp_register_set_opp_helper() and friends.

Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/opp/core.c     | 89 ++++++++++--------------------------------
 include/linux/pm_opp.h | 17 --------
 2 files changed, 20 insertions(+), 86 deletions(-)

diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index 9b4f67994993..3040e735fe1c 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -2209,7 +2209,7 @@ static void _opp_put_clknames(struct opp_table *opp_table)
 }
 
 /**
- * dev_pm_opp_register_set_opp_helper() - Register custom set OPP helper
+ * _opp_register_set_opp_helper() - Register custom set OPP helper
  * @dev: Device for which the helper is getting registered.
  * @set_opp: Custom set OPP helper.
  *
@@ -2218,32 +2218,18 @@ static void _opp_put_clknames(struct opp_table *opp_table)
  *
  * This must be called before any OPPs are initialized for the device.
  */
-struct opp_table *dev_pm_opp_register_set_opp_helper(struct device *dev,
-			int (*set_opp)(struct dev_pm_set_opp_data *data))
+static int _opp_register_set_opp_helper(struct opp_table *opp_table,
+	struct device *dev, int (*set_opp)(struct dev_pm_set_opp_data *data))
 {
 	struct dev_pm_set_opp_data *data;
-	struct opp_table *opp_table;
-
-	if (!set_opp)
-		return ERR_PTR(-EINVAL);
-
-	opp_table = _add_opp_table(dev, false);
-	if (IS_ERR(opp_table))
-		return opp_table;
-
-	/* This should be called before OPPs are initialized */
-	if (WARN_ON(!list_empty(&opp_table->opp_list))) {
-		dev_pm_opp_put_opp_table(opp_table);
-		return ERR_PTR(-EBUSY);
-	}
 
 	/* Another CPU that shares the OPP table has set the helper ? */
 	if (opp_table->set_opp)
-		return opp_table;
+		return 0;
 
 	data = kzalloc(sizeof(*data), GFP_KERNEL);
 	if (!data)
-		return ERR_PTR(-ENOMEM);
+		return -ENOMEM;
 
 	mutex_lock(&opp_table->lock);
 	opp_table->set_opp_data = data;
@@ -2256,60 +2242,26 @@ struct opp_table *dev_pm_opp_register_set_opp_helper(struct device *dev,
 
 	opp_table->set_opp = set_opp;
 
-	return opp_table;
+	return 0;
 }
-EXPORT_SYMBOL_GPL(dev_pm_opp_register_set_opp_helper);
 
 /**
- * dev_pm_opp_unregister_set_opp_helper() - Releases resources blocked for
- *					   set_opp helper
- * @opp_table: OPP table returned from dev_pm_opp_register_set_opp_helper().
+ * _opp_unregister_set_opp_helper() - Releases resources blocked for set_opp helper
+ * @opp_table: OPP table returned from _opp_register_set_opp_helper().
  *
  * Release resources blocked for platform specific set_opp helper.
  */
-void dev_pm_opp_unregister_set_opp_helper(struct opp_table *opp_table)
+static void _opp_unregister_set_opp_helper(struct opp_table *opp_table)
 {
-	if (unlikely(!opp_table))
-		return;
-
-	opp_table->set_opp = NULL;
-
-	mutex_lock(&opp_table->lock);
-	kfree(opp_table->set_opp_data);
-	opp_table->set_opp_data = NULL;
-	mutex_unlock(&opp_table->lock);
-
-	dev_pm_opp_put_opp_table(opp_table);
-}
-EXPORT_SYMBOL_GPL(dev_pm_opp_unregister_set_opp_helper);
-
-static void devm_pm_opp_unregister_set_opp_helper(void *data)
-{
-	dev_pm_opp_unregister_set_opp_helper(data);
-}
-
-/**
- * devm_pm_opp_register_set_opp_helper() - Register custom set OPP helper
- * @dev: Device for which the helper is getting registered.
- * @set_opp: Custom set OPP helper.
- *
- * This is a resource-managed version of dev_pm_opp_register_set_opp_helper().
- *
- * Return: 0 on success and errorno otherwise.
- */
-int devm_pm_opp_register_set_opp_helper(struct device *dev,
-					int (*set_opp)(struct dev_pm_set_opp_data *data))
-{
-	struct opp_table *opp_table;
-
-	opp_table = dev_pm_opp_register_set_opp_helper(dev, set_opp);
-	if (IS_ERR(opp_table))
-		return PTR_ERR(opp_table);
+	if (opp_table->set_opp) {
+		opp_table->set_opp = NULL;
 
-	return devm_add_action_or_reset(dev, devm_pm_opp_unregister_set_opp_helper,
-					opp_table);
+		mutex_lock(&opp_table->lock);
+		kfree(opp_table->set_opp_data);
+		opp_table->set_opp_data = NULL;
+		mutex_unlock(&opp_table->lock);
+	}
 }
-EXPORT_SYMBOL_GPL(devm_pm_opp_register_set_opp_helper);
 
 static void _opp_detach_genpd(struct opp_table *opp_table)
 {
@@ -2485,7 +2437,7 @@ static void _opp_clear_config(struct opp_config_data *data)
 	if (data->flags & OPP_CONFIG_SUPPORTED_HW)
 		_opp_put_supported_hw(data->opp_table);
 	if (data->flags & OPP_CONFIG_REGULATOR_HELPER)
-		dev_pm_opp_unregister_set_opp_helper(data->opp_table);
+		_opp_unregister_set_opp_helper(data->opp_table);
 	if (data->flags & OPP_CONFIG_PROP_NAME)
 		dev_pm_opp_put_prop_name(data->opp_table);
 	if (data->flags & OPP_CONFIG_CLK)
@@ -2561,11 +2513,10 @@ int dev_pm_opp_set_config(struct device *dev, struct dev_pm_opp_config *config)
 
 	/* Configure opp helper */
 	if (config->set_opp) {
-		err = dev_pm_opp_register_set_opp_helper(dev, config->set_opp);
-		if (IS_ERR(err)) {
-			ret = PTR_ERR(err);
+		ret = _opp_register_set_opp_helper(opp_table, dev,
+						   config->set_opp);
+		if (ret)
 			goto err;
-		}
 
 		data->flags |= OPP_CONFIG_REGULATOR_HELPER;
 	}
diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h
index 31062dc216f3..75edb6a14a76 100644
--- a/include/linux/pm_opp.h
+++ b/include/linux/pm_opp.h
@@ -189,9 +189,6 @@ void dev_pm_opp_clear_config(int token);
 
 struct opp_table *dev_pm_opp_set_prop_name(struct device *dev, const char *name);
 void dev_pm_opp_put_prop_name(struct opp_table *opp_table);
-struct opp_table *dev_pm_opp_register_set_opp_helper(struct device *dev, int (*set_opp)(struct dev_pm_set_opp_data *data));
-void dev_pm_opp_unregister_set_opp_helper(struct opp_table *opp_table);
-int devm_pm_opp_register_set_opp_helper(struct device *dev, int (*set_opp)(struct dev_pm_set_opp_data *data));
 struct opp_table *dev_pm_opp_attach_genpd(struct device *dev, const char * const *names, struct device ***virt_devs);
 void dev_pm_opp_detach_genpd(struct opp_table *opp_table);
 int devm_pm_opp_attach_genpd(struct device *dev, const char * const *names, struct device ***virt_devs);
@@ -366,20 +363,6 @@ static inline int dev_pm_opp_unregister_notifier(struct device *dev, struct noti
 	return -EOPNOTSUPP;
 }
 
-static inline struct opp_table *dev_pm_opp_register_set_opp_helper(struct device *dev,
-			int (*set_opp)(struct dev_pm_set_opp_data *data))
-{
-	return ERR_PTR(-EOPNOTSUPP);
-}
-
-static inline void dev_pm_opp_unregister_set_opp_helper(struct opp_table *opp_table) {}
-
-static inline int devm_pm_opp_register_set_opp_helper(struct device *dev,
-				    int (*set_opp)(struct dev_pm_set_opp_data *data))
-{
-	return -EOPNOTSUPP;
-}
-
 static inline struct opp_table *dev_pm_opp_set_prop_name(struct device *dev, const char *name)
 {
 	return ERR_PTR(-EOPNOTSUPP);
-- 
2.31.1.272.g89b43f80a514

[PATCH V2 29/30] OPP: Remove dev_pm_opp_attach_genpd() and friends

[Viresh Kumar]

Now that everyone has migrated to dev_pm_opp_set_config(), remove the
public interface for dev_pm_opp_attach_genpd() and friends.

Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/opp/core.c     | 85 +++++++++---------------------------------
 include/linux/pm_opp.h | 17 ---------
 2 files changed, 18 insertions(+), 84 deletions(-)

diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index 3040e735fe1c..17e9d272026f 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -2263,7 +2263,7 @@ static void _opp_unregister_set_opp_helper(struct opp_table *opp_table)
 	}
 }
 
-static void _opp_detach_genpd(struct opp_table *opp_table)
+static void _detach_genpd(struct opp_table *opp_table)
 {
 	int index;
 
@@ -2283,7 +2283,7 @@ static void _opp_detach_genpd(struct opp_table *opp_table)
 }
 
 /**
- * dev_pm_opp_attach_genpd - Attach genpd(s) for the device and save virtual device pointer
+ * _opp_attach_genpd - Attach genpd(s) for the device and save virtual device pointer
  * @dev: Consumer device for which the genpd is getting attached.
  * @names: Null terminated array of pointers containing names of genpd to attach.
  * @virt_devs: Pointer to return the array of virtual devices.
@@ -2304,30 +2304,23 @@ static void _opp_detach_genpd(struct opp_table *opp_table)
  * The order of entries in the names array must match the order in which
  * "required-opps" are added in DT.
  */
-struct opp_table *dev_pm_opp_attach_genpd(struct device *dev,
-		const char * const *names, struct device ***virt_devs)
+static int _opp_attach_genpd(struct opp_table *opp_table, struct device *dev,
+			const char * const *names, struct device ***virt_devs)
 {
-	struct opp_table *opp_table;
 	struct device *virt_dev;
 	int index = 0, ret = -EINVAL;
 	const char * const *name = names;
 
-	opp_table = _add_opp_table(dev, false);
-	if (IS_ERR(opp_table))
-		return opp_table;
-
 	if (opp_table->genpd_virt_devs)
-		return opp_table;
+		return 0;
 
 	/*
 	 * If the genpd's OPP table isn't already initialized, parsing of the
 	 * required-opps fail for dev. We should retry this after genpd's OPP
 	 * table is added.
 	 */
-	if (!opp_table->required_opp_count) {
-		ret = -EPROBE_DEFER;
-		goto put_table;
-	}
+	if (!opp_table->required_opp_count)
+		return -EPROBE_DEFER;
 
 	mutex_lock(&opp_table->genpd_virt_dev_lock);
 
@@ -2360,78 +2353,38 @@ struct opp_table *dev_pm_opp_attach_genpd(struct device *dev,
 		*virt_devs = opp_table->genpd_virt_devs;
 	mutex_unlock(&opp_table->genpd_virt_dev_lock);
 
-	return opp_table;
+	return 0;
 
 err:
-	_opp_detach_genpd(opp_table);
+	_detach_genpd(opp_table);
 unlock:
 	mutex_unlock(&opp_table->genpd_virt_dev_lock);
+	return ret;
 
-put_table:
-	dev_pm_opp_put_opp_table(opp_table);
-
-	return ERR_PTR(ret);
 }
-EXPORT_SYMBOL_GPL(dev_pm_opp_attach_genpd);
 
 /**
- * dev_pm_opp_detach_genpd() - Detach genpd(s) from the device.
- * @opp_table: OPP table returned by dev_pm_opp_attach_genpd().
+ * _opp_detach_genpd() - Detach genpd(s) from the device.
+ * @opp_table: OPP table returned by _opp_attach_genpd().
  *
  * This detaches the genpd(s), resets the virtual device pointers, and puts the
  * OPP table.
  */
-void dev_pm_opp_detach_genpd(struct opp_table *opp_table)
+static void _opp_detach_genpd(struct opp_table *opp_table)
 {
-	if (unlikely(!opp_table))
-		return;
-
 	/*
 	 * Acquire genpd_virt_dev_lock to make sure virt_dev isn't getting
 	 * used in parallel.
 	 */
 	mutex_lock(&opp_table->genpd_virt_dev_lock);
-	_opp_detach_genpd(opp_table);
+	_detach_genpd(opp_table);
 	mutex_unlock(&opp_table->genpd_virt_dev_lock);
-
-	dev_pm_opp_put_opp_table(opp_table);
 }
-EXPORT_SYMBOL_GPL(dev_pm_opp_detach_genpd);
-
-static void devm_pm_opp_detach_genpd(void *data)
-{
-	dev_pm_opp_detach_genpd(data);
-}
-
-/**
- * devm_pm_opp_attach_genpd - Attach genpd(s) for the device and save virtual
- *			      device pointer
- * @dev: Consumer device for which the genpd is getting attached.
- * @names: Null terminated array of pointers containing names of genpd to attach.
- * @virt_devs: Pointer to return the array of virtual devices.
- *
- * This is a resource-managed version of dev_pm_opp_attach_genpd().
- *
- * Return: 0 on success and errorno otherwise.
- */
-int devm_pm_opp_attach_genpd(struct device *dev, const char * const *names,
-			     struct device ***virt_devs)
-{
-	struct opp_table *opp_table;
-
-	opp_table = dev_pm_opp_attach_genpd(dev, names, virt_devs);
-	if (IS_ERR(opp_table))
-		return PTR_ERR(opp_table);
-
-	return devm_add_action_or_reset(dev, devm_pm_opp_detach_genpd,
-					opp_table);
-}
-EXPORT_SYMBOL_GPL(devm_pm_opp_attach_genpd);
 
 static void _opp_clear_config(struct opp_config_data *data)
 {
 	if (data->flags & OPP_CONFIG_GENPD)
-		dev_pm_opp_detach_genpd(data->opp_table);
+		_opp_detach_genpd(data->opp_table);
 	if (data->flags & OPP_CONFIG_REGULATOR)
 		_opp_put_regulators(data->opp_table);
 	if (data->flags & OPP_CONFIG_SUPPORTED_HW)
@@ -2544,12 +2497,10 @@ int dev_pm_opp_set_config(struct device *dev, struct dev_pm_opp_config *config)
 
 	/* Attach genpds */
 	if (config->genpd_names) {
-		err = dev_pm_opp_attach_genpd(dev, config->genpd_names,
-					      config->virt_devs);
-		if (IS_ERR(err)) {
-			ret = PTR_ERR(err);
+		ret = _opp_attach_genpd(opp_table, dev, config->genpd_names,
+					config->virt_devs);
+		if (ret)
 			goto err;
-		}
 
 		data->flags |= OPP_CONFIG_GENPD;
 	}
diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h
index 75edb6a14a76..63ad7870ae11 100644
--- a/include/linux/pm_opp.h
+++ b/include/linux/pm_opp.h
@@ -189,9 +189,6 @@ void dev_pm_opp_clear_config(int token);
 
 struct opp_table *dev_pm_opp_set_prop_name(struct device *dev, const char *name);
 void dev_pm_opp_put_prop_name(struct opp_table *opp_table);
-struct opp_table *dev_pm_opp_attach_genpd(struct device *dev, const char * const *names, struct device ***virt_devs);
-void dev_pm_opp_detach_genpd(struct opp_table *opp_table);
-int devm_pm_opp_attach_genpd(struct device *dev, const char * const *names, struct device ***virt_devs);
 struct dev_pm_opp *dev_pm_opp_xlate_required_opp(struct opp_table *src_table, struct opp_table *dst_table, struct dev_pm_opp *src_opp);
 int dev_pm_opp_xlate_performance_state(struct opp_table *src_table, struct opp_table *dst_table, unsigned int pstate);
 int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq);
@@ -370,20 +367,6 @@ static inline struct opp_table *dev_pm_opp_set_prop_name(struct device *dev, con
 
 static inline void dev_pm_opp_put_prop_name(struct opp_table *opp_table) {}
 
-static inline struct opp_table *dev_pm_opp_attach_genpd(struct device *dev, const char * const *names, struct device ***virt_devs)
-{
-	return ERR_PTR(-EOPNOTSUPP);
-}
-
-static inline void dev_pm_opp_detach_genpd(struct opp_table *opp_table) {}
-
-static inline int devm_pm_opp_attach_genpd(struct device *dev,
-					   const char * const *names,
-					   struct device ***virt_devs)
-{
-	return -EOPNOTSUPP;
-}
-
 static inline int dev_pm_opp_set_config(struct device *dev, struct dev_pm_opp_config *config)
 {
 	return -EOPNOTSUPP;
-- 
2.31.1.272.g89b43f80a514

[PATCH V2 30/30] OPP: Remove dev_pm_opp_set_prop_name() and friends

[Viresh Kumar]

Now that everyone has migrated to dev_pm_opp_set_config(), remove the
public interface for dev_pm_opp_set_prop_name() and friends.

Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/opp/core.c     | 55 ++++++++++++++----------------------------
 include/linux/pm_opp.h |  9 -------
 2 files changed, 18 insertions(+), 46 deletions(-)

diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index 17e9d272026f..75bb570d30e4 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -1997,7 +1997,7 @@ static void _opp_put_supported_hw(struct opp_table *opp_table)
 }
 
 /**
- * dev_pm_opp_set_prop_name() - Set prop-extn name
+ * _opp_set_prop_name() - Set prop-extn name
  * @dev: Device for which the prop-name has to be set.
  * @name: name to postfix to properties.
  *
@@ -2006,50 +2006,33 @@ static void _opp_put_supported_hw(struct opp_table *opp_table)
  * which the extension will apply are opp-microvolt and opp-microamp. OPP core
  * should postfix the property name with -<name> while looking for them.
  */
-struct opp_table *dev_pm_opp_set_prop_name(struct device *dev, const char *name)
+static int _opp_set_prop_name(struct opp_table *opp_table, const char *name)
 {
-	struct opp_table *opp_table;
-
-	opp_table = _add_opp_table(dev, false);
-	if (IS_ERR(opp_table))
-		return opp_table;
-
-	/* Make sure there are no concurrent readers while updating opp_table */
-	WARN_ON(!list_empty(&opp_table->opp_list));
-
 	/* Another CPU that shares the OPP table has set the property ? */
-	if (opp_table->prop_name)
-		return opp_table;
-
-	opp_table->prop_name = kstrdup(name, GFP_KERNEL);
 	if (!opp_table->prop_name) {
-		dev_pm_opp_put_opp_table(opp_table);
-		return ERR_PTR(-ENOMEM);
+		opp_table->prop_name = kstrdup(name, GFP_KERNEL);
+		if (!opp_table->prop_name)
+			return -ENOMEM;
 	}
 
-	return opp_table;
+	return 0;
 }
-EXPORT_SYMBOL_GPL(dev_pm_opp_set_prop_name);
 
 /**
- * dev_pm_opp_put_prop_name() - Releases resources blocked for prop-name
- * @opp_table: OPP table returned by dev_pm_opp_set_prop_name().
+ * _opp_put_prop_name() - Releases resources blocked for prop-name
+ * @opp_table: OPP table returned by _opp_set_prop_name().
  *
  * This is required only for the V2 bindings, and is called for a matching
- * dev_pm_opp_set_prop_name(). Until this is called, the opp_table structure
+ * _opp_set_prop_name(). Until this is called, the opp_table structure
  * will not be freed.
  */
-void dev_pm_opp_put_prop_name(struct opp_table *opp_table)
+static void _opp_put_prop_name(struct opp_table *opp_table)
 {
-	if (unlikely(!opp_table))
-		return;
-
-	kfree(opp_table->prop_name);
-	opp_table->prop_name = NULL;
-
-	dev_pm_opp_put_opp_table(opp_table);
+	if (opp_table->prop_name) {
+		kfree(opp_table->prop_name);
+		opp_table->prop_name = NULL;
+	}
 }
-EXPORT_SYMBOL_GPL(dev_pm_opp_put_prop_name);
 
 /**
  * _opp_set_regulators() - Set regulator names for the device
@@ -2392,7 +2375,7 @@ static void _opp_clear_config(struct opp_config_data *data)
 	if (data->flags & OPP_CONFIG_REGULATOR_HELPER)
 		_opp_unregister_set_opp_helper(data->opp_table);
 	if (data->flags & OPP_CONFIG_PROP_NAME)
-		dev_pm_opp_put_prop_name(data->opp_table);
+		_opp_put_prop_name(data->opp_table);
 	if (data->flags & OPP_CONFIG_CLK)
 		_opp_put_clknames(data->opp_table);
 
@@ -2419,7 +2402,7 @@ static void _opp_clear_config(struct opp_config_data *data)
  */
 int dev_pm_opp_set_config(struct device *dev, struct dev_pm_opp_config *config)
 {
-	struct opp_table *opp_table, *err;
+	struct opp_table *opp_table;
 	struct opp_config_data *data;
 	unsigned int id;
 	int ret;
@@ -2455,11 +2438,9 @@ int dev_pm_opp_set_config(struct device *dev, struct dev_pm_opp_config *config)
 
 	/* Configure property names */
 	if (config->prop_name) {
-		err = dev_pm_opp_set_prop_name(dev, config->prop_name);
-		if (IS_ERR(err)) {
-			ret = PTR_ERR(err);
+		ret = _opp_set_prop_name(opp_table, config->prop_name);
+		if (ret)
 			goto err;
-		}
 
 		data->flags |= OPP_CONFIG_PROP_NAME;
 	}
diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h
index 63ad7870ae11..26653be21dc0 100644
--- a/include/linux/pm_opp.h
+++ b/include/linux/pm_opp.h
@@ -187,8 +187,6 @@ int dev_pm_opp_set_config(struct device *dev, struct dev_pm_opp_config *config);
 int devm_pm_opp_set_config(struct device *dev, struct dev_pm_opp_config *config);
 void dev_pm_opp_clear_config(int token);
 
-struct opp_table *dev_pm_opp_set_prop_name(struct device *dev, const char *name);
-void dev_pm_opp_put_prop_name(struct opp_table *opp_table);
 struct dev_pm_opp *dev_pm_opp_xlate_required_opp(struct opp_table *src_table, struct opp_table *dst_table, struct dev_pm_opp *src_opp);
 int dev_pm_opp_xlate_performance_state(struct opp_table *src_table, struct opp_table *dst_table, unsigned int pstate);
 int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq);
@@ -360,13 +358,6 @@ static inline int dev_pm_opp_unregister_notifier(struct device *dev, struct noti
 	return -EOPNOTSUPP;
 }
 
-static inline struct opp_table *dev_pm_opp_set_prop_name(struct device *dev, const char *name)
-{
-	return ERR_PTR(-EOPNOTSUPP);
-}
-
-static inline void dev_pm_opp_put_prop_name(struct opp_table *opp_table) {}
-
 static inline int dev_pm_opp_set_config(struct device *dev, struct dev_pm_opp_config *config)
 {
 	return -EOPNOTSUPP;
-- 
2.31.1.272.g89b43f80a514

Re: [PATCH V2 24/30] serial: qcom: Migrate to dev_pm_opp_set_config()

[Greg Kroah-Hartman]

On Fri, Jul 01, 2022 at 01:50:19PM +0530, Viresh Kumar wrote:
> The OPP core now provides a unified API for setting all configuration
> types, i.e. dev_pm_opp_set_config().
> 
> Lets start using it.
> 
> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
> ---
>  drivers/tty/serial/qcom_geni_serial.c | 6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c
> index 4733a233bd0c..ab667838d082 100644
> --- a/drivers/tty/serial/qcom_geni_serial.c
> +++ b/drivers/tty/serial/qcom_geni_serial.c
> @@ -1347,6 +1347,10 @@ static int qcom_geni_serial_probe(struct platform_device *pdev)
>  	int irq;
>  	bool console = false;
>  	struct uart_driver *drv;
> +	struct dev_pm_opp_config config = {
> +		.clk_names = (const char *[]){ "se" },
> +		.clk_count = 1,
> +	};
>  
>  	if (of_device_is_compatible(pdev->dev.of_node, "qcom,geni-debug-uart"))
>  		console = true;
> @@ -1430,7 +1434,7 @@ static int qcom_geni_serial_probe(struct platform_device *pdev)
>  	if (of_property_read_bool(pdev->dev.of_node, "cts-rts-swap"))
>  		port->cts_rts_swap = true;
>  
> -	ret = devm_pm_opp_set_clkname(&pdev->dev, "se");
> +	ret = devm_pm_opp_set_config(&pdev->dev, &config);

This feels like a step back.  This is much harder now, what's wrong with
devm_pm_opp_set_clkname() as is?

thanks,

greg k-h

Re: [PATCH V2 24/30] serial: qcom: Migrate to dev_pm_opp_set_config()

[Viresh Kumar]

On 01-07-22, 10:44, Greg Kroah-Hartman wrote:
> On Fri, Jul 01, 2022 at 01:50:19PM +0530, Viresh Kumar wrote:
> > diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c
> > +	struct dev_pm_opp_config config = {
> > +		.clk_names = (const char *[]){ "se" },
> > +		.clk_count = 1,
> > +	};
> >  
> > -	ret = devm_pm_opp_set_clkname(&pdev->dev, "se");
> > +	ret = devm_pm_opp_set_config(&pdev->dev, &config);
> 
> This feels like a step back.  This is much harder now, what's wrong with
> devm_pm_opp_set_clkname() as is?

Hi Greg,

There are a number of configurations one can do for a device's OPP
table currently:

- clk, single or multiple (new)
- helper to configure multiple clocks (for multiple clocks)
- supplies or regulators
- helper to configure supplies (for multiple supplies)
- OPP supported-hw property
- OPP Property-name
- Genpd specific one
- etc

One problem was that it was a mess within the OPP core with a separate
interface for each of these interfaces, almost duplicate code, etc.

But then it was a bigger mess for the user drivers that need to manage
a few of these. They were required to call multiple APIs, with all the
interfaces returning tokens, which the callers need to save and supply
back to free the resources later. More code, hard to manage, easy to
abuse and add bugs to.

The new interface makes it easier and clean for everyone and allows
easy upgrades of interfaces in future. Adding a new interface, like
support for multiple clocks for a device that I just did, is much
easier now.

I really believe this is a step in the right direction :)

-- 
viresh

Re: [PATCH V2 24/30] serial: qcom: Migrate to dev_pm_opp_set_config()

[Greg Kroah-Hartman]

On Fri, Jul 01, 2022 at 02:54:58PM +0530, Viresh Kumar wrote:
> On 01-07-22, 10:44, Greg Kroah-Hartman wrote:
> > On Fri, Jul 01, 2022 at 01:50:19PM +0530, Viresh Kumar wrote:
> > > diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c
> > > +	struct dev_pm_opp_config config = {
> > > +		.clk_names = (const char *[]){ "se" },
> > > +		.clk_count = 1,
> > > +	};
> > >  
> > > -	ret = devm_pm_opp_set_clkname(&pdev->dev, "se");
> > > +	ret = devm_pm_opp_set_config(&pdev->dev, &config);
> > 
> > This feels like a step back.  This is much harder now, what's wrong with
> > devm_pm_opp_set_clkname() as is?
> 
> Hi Greg,
> 
> There are a number of configurations one can do for a device's OPP
> table currently:
> 
> - clk, single or multiple (new)
> - helper to configure multiple clocks (for multiple clocks)
> - supplies or regulators
> - helper to configure supplies (for multiple supplies)
> - OPP supported-hw property
> - OPP Property-name
> - Genpd specific one
> - etc
> 
> One problem was that it was a mess within the OPP core with a separate
> interface for each of these interfaces, almost duplicate code, etc.
> 
> But then it was a bigger mess for the user drivers that need to manage
> a few of these. They were required to call multiple APIs, with all the
> interfaces returning tokens, which the callers need to save and supply
> back to free the resources later. More code, hard to manage, easy to
> abuse and add bugs to.
> 
> The new interface makes it easier and clean for everyone and allows
> easy upgrades of interfaces in future. Adding a new interface, like
> support for multiple clocks for a device that I just did, is much
> easier now.
> 
> I really believe this is a step in the right direction :)

It's now more complex for simple drivers like this, right?  Why not
provide translations of the devm_pm_opp_set_clkname() to use internally
devm_pm_opp_set_config() if you want to do complex things, allowing you
to continue to do simple things without the overhead of a driver having
to create a structure on the stack and remember how the "const char *[]"
syntax looks like (seriously, that's crazy).

Make it simple for simple things, and provide the ability to do complex
things only if that is required.

thanks,

greg k-h

Re: [PATCH V2 24/30] serial: qcom: Migrate to dev_pm_opp_set_config()

[Viresh Kumar]

On 01-07-22, 11:39, Greg Kroah-Hartman wrote:
> It's now more complex for simple drivers like this, right?

They need to add a structure, yes.

> Why not
> provide translations of the devm_pm_opp_set_clkname() to use internally
> devm_pm_opp_set_config() if you want to do complex things,

That can be done, yes.

> allowing you
> to continue to do simple things without the overhead of a driver having
> to create a structure on the stack

I didn't think of it as complexity, and I still feel it is okay-ish.

> and remember how the "const char *[]"
> syntax looks like (seriously, that's crazy).

The syntax can be fixed, if we want, by avoiding the cast with
something like this:

diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c
index a018b45c5a9a..1a5480214a43 100644
--- a/drivers/mmc/host/sdhci-msm.c
+++ b/drivers/mmc/host/sdhci-msm.c
@@ -2559,8 +2559,9 @@ static int sdhci_msm_probe(struct platform_device *pdev)
        const struct sdhci_msm_offset *msm_offset;
        const struct sdhci_msm_variant_info *var_info;
        struct device_node *node = pdev->dev.of_node;
+       const char *clks[] = { "core" };
        struct dev_pm_opp_config opp_config = {
-               .clk_names = (const char *[]){ "core" },
+               .clk_names = clks,
                .clk_count = 1,
        };

> Make it simple for simple things, and provide the ability to do complex
> things only if that is required.

I still feel it isn't too bad for simple cases right now too, it is
just a structure to fill out but I don't have hard feelings for
keeping the old API around. I just feel it isn't too helpful to keep
the old interfaces around, it will just confuse people at the best.

Anyway, I will keep them around.

-- 
viresh

Re: [PATCH V2 24/30] serial: qcom: Migrate to dev_pm_opp_set_config()

[Greg Kroah-Hartman]

On Fri, Jul 01, 2022 at 03:31:00PM +0530, Viresh Kumar wrote:
> On 01-07-22, 11:39, Greg Kroah-Hartman wrote:
> > It's now more complex for simple drivers like this, right?
> 
> They need to add a structure, yes.
> 
> > Why not
> > provide translations of the devm_pm_opp_set_clkname() to use internally
> > devm_pm_opp_set_config() if you want to do complex things,
> 
> That can be done, yes.
> 
> > allowing you
> > to continue to do simple things without the overhead of a driver having
> > to create a structure on the stack
> 
> I didn't think of it as complexity, and I still feel it is okay-ish.
> 
> > and remember how the "const char *[]"
> > syntax looks like (seriously, that's crazy).
> 
> The syntax can be fixed, if we want, by avoiding the cast with
> something like this:
> 
> diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c
> index a018b45c5a9a..1a5480214a43 100644
> --- a/drivers/mmc/host/sdhci-msm.c
> +++ b/drivers/mmc/host/sdhci-msm.c
> @@ -2559,8 +2559,9 @@ static int sdhci_msm_probe(struct platform_device *pdev)
>         const struct sdhci_msm_offset *msm_offset;
>         const struct sdhci_msm_variant_info *var_info;
>         struct device_node *node = pdev->dev.of_node;
> +       const char *clks[] = { "core" };
>         struct dev_pm_opp_config opp_config = {
> -               .clk_names = (const char *[]){ "core" },
> +               .clk_names = clks,
>                 .clk_count = 1,
>         };

Still crazy, but a bit better.

Why do you need the clk_count?  A null terminated list is better, as the
compiler can do it for you and you do not have to keep things in sync
like you are expecting people to be forced to do now.

> > Make it simple for simple things, and provide the ability to do complex
> > things only if that is required.
> 
> I still feel it isn't too bad for simple cases right now too, it is
> just a structure to fill out but I don't have hard feelings for
> keeping the old API around. I just feel it isn't too helpful to keep
> the old interfaces around, it will just confuse people at the best.

The above is much more complex than a simple function call to make.
Remember to make it very simple for driver authors, and more
importantly, reviewers.

> Anyway, I will keep them around.

Thanks, and drop the count field please.

thanks,

greg k-h

Re: [PATCH V2 24/30] serial: qcom: Migrate to dev_pm_opp_set_config()

[Viresh Kumar]

On 01-07-22, 12:18, Greg Kroah-Hartman wrote:
> On Fri, Jul 01, 2022 at 03:31:00PM +0530, Viresh Kumar wrote:
> Still crazy, but a bit better.

:)

> Why do you need the clk_count?  A null terminated list is better,

Because I am not a big fan of the null terminated lists :)

I had to chase a bug once where someone removed that NULL at the end
and it was a nightmare to understand what's going on.

> as the
> compiler can do it for you and you do not have to keep things in sync
> like you are expecting people to be forced to do now.

I am not sure I understand what the compiler can do for us here.

The users will be required to do this here, isn't it ?

        const char *clks[] = { "core", NULL };
        struct dev_pm_opp_config opp_config = {
               .clk_names = clks,
        };


> The above is much more complex than a simple function call to make.
> Remember to make it very simple for driver authors, and more
> importantly, reviewers.

Hmm.

> Thanks, and drop the count field please.

There is one case at least [1] where we actually have to pass NULL in
the clk name. This is basically to allow the same code to run on
different devices, one where an OPP table is present and one where it
isn't. We don't want to do clk_set_rate() for the second case but just
use dev_pm_opp_set_rate() (which does a lot of stuff apart from just
clk).

-- 
viresh

[1] https://lore.kernel.org/lkml/b19a02422cae2408f953b92ae3c46a37fba688a3.1656660185.git.viresh.kumar@linaro.org/

Re: [PATCH V2 24/30] serial: qcom: Migrate to dev_pm_opp_set_config()

[Greg Kroah-Hartman]

On Fri, Jul 01, 2022 at 03:59:26PM +0530, Viresh Kumar wrote:
> On 01-07-22, 12:18, Greg Kroah-Hartman wrote:
> > On Fri, Jul 01, 2022 at 03:31:00PM +0530, Viresh Kumar wrote:
> > Still crazy, but a bit better.
> 
> :)
> 
> > Why do you need the clk_count?  A null terminated list is better,
> 
> Because I am not a big fan of the null terminated lists :)
> 
> I had to chase a bug once where someone removed that NULL at the end
> and it was a nightmare to understand what's going on.

But that's the "normal" way the kernel does things.  Trying to keep a
count in sync with a list is a pain, and just gets harder and harder
over time.  Make it a null-terminated list so that the cpu makes this
always work and prevents errors.

> > as the
> > compiler can do it for you and you do not have to keep things in sync
> > like you are expecting people to be forced to do now.
> 
> I am not sure I understand what the compiler can do for us here.
> 
> The users will be required to do this here, isn't it ?
> 
>         const char *clks[] = { "core", NULL };
>         struct dev_pm_opp_config opp_config = {
>                .clk_names = clks,
>         };
> 

The "in sync" is the count issue.  Don't force humans to count up the
number of items in a list please.

> > The above is much more complex than a simple function call to make.
> > Remember to make it very simple for driver authors, and more
> > importantly, reviewers.
> 
> Hmm.
> 
> > Thanks, and drop the count field please.
> 
> There is one case at least [1] where we actually have to pass NULL in
> the clk name. This is basically to allow the same code to run on
> different devices, one where an OPP table is present and one where it
> isn't. We don't want to do clk_set_rate() for the second case but just
> use dev_pm_opp_set_rate() (which does a lot of stuff apart from just
> clk).

That feels completely wrong, don't have NULL for a name, make a fake name
or something.  Don't make all users in the kernel have a horrible
interface just for one piece of broken hardware out there.

Worst case, name it "".

thanks,

greg k-h

Re: [PATCH V2 24/30] serial: qcom: Migrate to dev_pm_opp_set_config()

[Viresh Kumar]

On 01-07-22, 12:41, Greg Kroah-Hartman wrote:
> That feels completely wrong, don't have NULL for a name, make a fake name
> or something.  Don't make all users in the kernel have a horrible
> interface just for one piece of broken hardware out there.
> 
> Worst case, name it "".

This name goes into the second argument of clk_get(dev, const char *con_id);

I will see how else I should hack it :)

-- 
viresh