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[PATCH 0/2] Fixes for devfreq cooling

Started byJavi Merino <javi.merino@arm.com>
First post2015-11-02 20:10 +0100
Last post2015-11-02 20:10 +0100
Articles 3 — 1 participant

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  [PATCH 0/2] Fixes for devfreq cooling Javi Merino <javi.merino@arm.com> - 2015-11-02 20:10 +0100
    [PATCH 2/2] thermal: devfreq_cooling: Make power a u64 Javi Merino <javi.merino@arm.com> - 2015-11-02 20:10 +0100
    [PATCH 1/2] thermal: devfreq_cooling: use a thermal_cooling_device for register and unregister Javi Merino <javi.merino@arm.com> - 2015-11-02 20:10 +0100

#1260886 — [PATCH 0/2] Fixes for devfreq cooling

FromJavi Merino <javi.merino@arm.com>
Date2015-11-02 20:10 +0100
Subject[PATCH 0/2] Fixes for devfreq cooling
Message-ID<qqsEp-Gy-3@gated-at.bofh.it>
When devfreq cooling entered Eduardo's tree, the kbuild test robot
spotted a compilation warning on sh.  Also, the first patch aligns the
return type and the parameters of the devfreq register/unregister with
those of the cpu cooling device.

This patches apply on top of eduardo/next.

Javi Merino (2):
  thermal: devfreq_cooling: use a thermal_cooling_device for register
    and unregister
  thermal: devfreq_cooling: Make power a u64

 drivers/thermal/devfreq_cooling.c | 18 +++++++++++-------
 include/linux/devfreq_cooling.h   | 16 ++++++++--------
 2 files changed, 19 insertions(+), 15 deletions(-)

-- 
1.9.1

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#1260887 — [PATCH 2/2] thermal: devfreq_cooling: Make power a u64

FromJavi Merino <javi.merino@arm.com>
Date2015-11-02 20:10 +0100
Subject[PATCH 2/2] thermal: devfreq_cooling: Make power a u64
Message-ID<qqsEq-Gy-5@gated-at.bofh.it>
In reply to#1260886
The prototype of do_div() is:

uint32_t do_div(uint64_t *n, uint32_t base);

Make power u64 to avoid the following warning:

   drivers/thermal/devfreq_cooling.c: In function 'get_dynamic_power':
   drivers/thermal/devfreq_cooling.c:267:2: warning: comparison of distinct pointer types lacks a cast [enabled by default]
   drivers/thermal/devfreq_cooling.c:267:2: warning: right shift count >= width of type [enabled by default]
   drivers/thermal/devfreq_cooling.c:267:2: warning: passing argument 1 of '__div64_32' from incompatible pointer type [enabled by default]
   include/asm-generic/div64.h:35:17: note: expected 'uint64_t *' but argument is of type 'long unsigned int *'

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Javi Merino <javi.merino@arm.com>
---
 drivers/thermal/devfreq_cooling.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/thermal/devfreq_cooling.c b/drivers/thermal/devfreq_cooling.c
index 31e40a9a9fd0..d1b7c32e7406 100644
--- a/drivers/thermal/devfreq_cooling.c
+++ b/drivers/thermal/devfreq_cooling.c
@@ -257,7 +257,7 @@ static unsigned long
 get_dynamic_power(struct devfreq_cooling_device *dfc, unsigned long freq,
 		  unsigned long voltage)
 {
-	unsigned long power;
+	u64 power;
 	u32 freq_mhz;
 	struct devfreq_cooling_power *dfc_power = dfc->power_ops;
 
-- 
1.9.1

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#1260889 — [PATCH 1/2] thermal: devfreq_cooling: use a thermal_cooling_device for register and unregister

FromJavi Merino <javi.merino@arm.com>
Date2015-11-02 20:10 +0100
Subject[PATCH 1/2] thermal: devfreq_cooling: use a thermal_cooling_device for register and unregister
Message-ID<qqsEq-Gy-11@gated-at.bofh.it>
In reply to#1260886
Be consistent with what other cooling devices do and return a struct
thermal_cooling_device * on register.  Also, for the unregister, accept
a struct thermal_cooling_device * as parameter.

Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Javi Merino <javi.merino@arm.com>
---
 drivers/thermal/devfreq_cooling.c | 16 ++++++++++------
 include/linux/devfreq_cooling.h   | 16 ++++++++--------
 2 files changed, 18 insertions(+), 14 deletions(-)

diff --git a/drivers/thermal/devfreq_cooling.c b/drivers/thermal/devfreq_cooling.c
index a27206815066..31e40a9a9fd0 100644
--- a/drivers/thermal/devfreq_cooling.c
+++ b/drivers/thermal/devfreq_cooling.c
@@ -467,7 +467,7 @@ free_power_table:
  * devfreq should use the simple_ondemand governor, other governors
  * are not currently supported.
  */
-struct devfreq_cooling_device *
+struct thermal_cooling_device *
 of_devfreq_cooling_register_power(struct device_node *np, struct devfreq *df,
 				  struct devfreq_cooling_power *dfc_power)
 {
@@ -513,7 +513,7 @@ of_devfreq_cooling_register_power(struct device_node *np, struct devfreq *df,
 
 	dfc->cdev = cdev;
 
-	return dfc;
+	return cdev;
 
 release_idr:
 	release_idr(&devfreq_idr, dfc->id);
@@ -533,7 +533,7 @@ EXPORT_SYMBOL_GPL(of_devfreq_cooling_register_power);
  * @np: Pointer to OF device_node.
  * @df: Pointer to devfreq device.
  */
-struct devfreq_cooling_device *
+struct thermal_cooling_device *
 of_devfreq_cooling_register(struct device_node *np, struct devfreq *df)
 {
 	return of_devfreq_cooling_register_power(np, df, NULL);
@@ -544,7 +544,7 @@ EXPORT_SYMBOL_GPL(of_devfreq_cooling_register);
  * devfreq_cooling_register() - Register devfreq cooling device.
  * @df: Pointer to devfreq device.
  */
-struct devfreq_cooling_device *devfreq_cooling_register(struct devfreq *df)
+struct thermal_cooling_device *devfreq_cooling_register(struct devfreq *df)
 {
 	return of_devfreq_cooling_register(NULL, df);
 }
@@ -554,11 +554,15 @@ EXPORT_SYMBOL_GPL(devfreq_cooling_register);
  * devfreq_cooling_unregister() - Unregister devfreq cooling device.
  * @dfc: Pointer to devfreq cooling device to unregister.
  */
-void devfreq_cooling_unregister(struct devfreq_cooling_device *dfc)
+void devfreq_cooling_unregister(struct thermal_cooling_device *cdev)
 {
-	if (!dfc)
+	struct devfreq_cooling_device *dfc;
+
+	if (!cdev)
 		return;
 
+	dfc = cdev->devdata;
+
 	thermal_cooling_device_unregister(dfc->cdev);
 	release_idr(&devfreq_idr, dfc->id);
 	kfree(dfc->power_table);
diff --git a/include/linux/devfreq_cooling.h b/include/linux/devfreq_cooling.h
index ee5f0ec9290b..7adf6cc4b305 100644
--- a/include/linux/devfreq_cooling.h
+++ b/include/linux/devfreq_cooling.h
@@ -43,37 +43,37 @@ struct devfreq_cooling_power {
 	unsigned long dyn_power_coeff;
 };
 
-struct devfreq_cooling_device *
+struct thermal_cooling_device *
 of_devfreq_cooling_register_power(struct device_node *np, struct devfreq *df,
 				  struct devfreq_cooling_power *dfc_power);
-struct devfreq_cooling_device *
+struct thermal_cooling_device *
 of_devfreq_cooling_register(struct device_node *np, struct devfreq *df);
-struct devfreq_cooling_device *devfreq_cooling_register(struct devfreq *df);
-void devfreq_cooling_unregister(struct devfreq_cooling_device *dfc);
+struct thermal_cooling_device *devfreq_cooling_register(struct devfreq *df);
+void devfreq_cooling_unregister(struct thermal_cooling_device *dfc);
 
 #else /* !CONFIG_DEVFREQ_THERMAL */
 
-struct devfreq_cooling_device *
+struct thermal_cooling_device *
 of_devfreq_cooling_register_power(struct device_node *np, struct devfreq *df,
 				  struct devfreq_cooling_power *dfc_power)
 {
 	return ERR_PTR(-EINVAL);
 }
 
-static inline struct devfreq_cooling_device *
+static inline struct thermal_cooling_device *
 of_devfreq_cooling_register(struct device_node *np, struct devfreq *df)
 {
 	return ERR_PTR(-EINVAL);
 }
 
-static inline struct devfreq_cooling_device *
+static inline struct thermal_cooling_device *
 devfreq_cooling_register(struct devfreq *df)
 {
 	return ERR_PTR(-EINVAL);
 }
 
 static inline void
-devfreq_cooling_unregister(struct devfreq_cooling_device *dfc)
+devfreq_cooling_unregister(struct thermal_cooling_device *dfc)
 {
 }
 
-- 
1.9.1

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