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* [PATCH RESEND 1/3] regulator: core: Add enable_is_inverted flag to indicate set enable_mask bits to disable
@ 2013-03-05  6:16 Axel Lin
  2013-03-05  6:16 ` [PATCH RESEND 2/3] regulator: 88pm8607: Use enable_is_inverted flag with regulator_enable_regmap and friends APIs Axel Lin
                   ` (2 more replies)
  0 siblings, 3 replies; 6+ messages in thread
From: Axel Lin @ 2013-03-05  6:16 UTC (permalink / raw)
  To: Mark Brown; +Cc: Haojian Zhuang, Jett.Zhou, Liam Girdwood, linux-kernel

Add enable_is_inverted flag to indicate set enable_mask bits to disable
when using regulator_enable_regmap and friends APIs.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Haojian Zhuang <haojian.zhuang@gmail.com>
---
This patch was sent on https://lkml.org/lkml/2013/2/16/14.
This resend is against linux-next tree (20130305).

 drivers/regulator/core.c         |   24 ++++++++++++++++++++----
 include/linux/regulator/driver.h |    3 +++
 2 files changed, 23 insertions(+), 4 deletions(-)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index cea0217..d420c8f 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1905,7 +1905,10 @@ int regulator_is_enabled_regmap(struct regulator_dev *rdev)
 	if (ret != 0)
 		return ret;
 
-	return (val & rdev->desc->enable_mask) != 0;
+	if (rdev->desc->enable_is_inverted)
+		return (val & rdev->desc->enable_mask) == 0;
+	else
+		return (val & rdev->desc->enable_mask) != 0;
 }
 EXPORT_SYMBOL_GPL(regulator_is_enabled_regmap);
 
@@ -1920,9 +1923,15 @@ EXPORT_SYMBOL_GPL(regulator_is_enabled_regmap);
  */
 int regulator_enable_regmap(struct regulator_dev *rdev)
 {
+	unsigned int val;
+
+	if (rdev->desc->enable_is_inverted)
+		val = 0;
+	else
+		val = rdev->desc->enable_mask;
+
 	return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
-				  rdev->desc->enable_mask,
-				  rdev->desc->enable_mask);
+				  rdev->desc->enable_mask, val);
 }
 EXPORT_SYMBOL_GPL(regulator_enable_regmap);
 
@@ -1937,8 +1946,15 @@ EXPORT_SYMBOL_GPL(regulator_enable_regmap);
  */
 int regulator_disable_regmap(struct regulator_dev *rdev)
 {
+	unsigned int val;
+
+	if (rdev->desc->enable_is_inverted)
+		val = rdev->desc->enable_mask;
+	else
+		val = 0;
+
 	return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
-				  rdev->desc->enable_mask, 0);
+				  rdev->desc->enable_mask, val);
 }
 EXPORT_SYMBOL_GPL(regulator_disable_regmap);
 
diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index a741bb6..5e2d13d 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -200,6 +200,8 @@ enum regulator_type {
  *                output when using regulator_set_voltage_sel_regmap
  * @enable_reg: Register for control when using regmap enable/disable ops
  * @enable_mask: Mask for control when using regmap enable/disable ops
+ * @enable_is_inverted: A flag to indicate set enable_mask bits to disable
+ *                      when using regulator_enable_regmap and friends APIs.
  * @bypass_reg: Register for control when using regmap set_bypass
  * @bypass_mask: Mask for control when using regmap set_bypass
  *
@@ -229,6 +231,7 @@ struct regulator_desc {
 	unsigned int apply_bit;
 	unsigned int enable_reg;
 	unsigned int enable_mask;
+	bool enable_is_inverted;
 	unsigned int bypass_reg;
 	unsigned int bypass_mask;
 
-- 
1.7.9.5




^ permalink raw reply related	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2013-03-05 10:00 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2013-03-05  6:16 [PATCH RESEND 1/3] regulator: core: Add enable_is_inverted flag to indicate set enable_mask bits to disable Axel Lin
2013-03-05  6:16 ` [PATCH RESEND 2/3] regulator: 88pm8607: Use enable_is_inverted flag with regulator_enable_regmap and friends APIs Axel Lin
2013-03-05  6:17 ` [PATCH RESEND 3/3] regulator: max8649: " Axel Lin
2013-03-05  7:03 ` [PATCH RESEND 1/3] regulator: core: Add enable_is_inverted flag to indicate set enable_mask bits to disable Mark Brown
2013-03-05  7:09   ` Axel Lin
2013-03-05 10:00     ` Mark Brown

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