linux-kernel - [PATCH] power: max8925_power. Do not detect ac insert if handled by other code

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Date:	Wed, 24 Aug 2011 15:27:33 -0700
From:	Philip Rakity <prakity@...vell.com>
To:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:	Haojian Zhuang <hzhuang1@...vell.com>
Subject: [PATCH] power: max8925_power.  Do not detect ac insert if handled
 by other code 

On brownstone rev 4 ac-insert detect is handled by vbus.

allow the platform code to configure the disabling of insert
by setting no_insert_detect.

Signed-off-by: Philip Rakity <prakity@...vell.com>
---
 drivers/power/max8925_power.c |    8 ++++++--
 include/linux/mfd/max8925.h   |    1 +
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/power/max8925_power.c b/drivers/power/max8925_power.c
index dba07f3..fd32c08 100644
--- a/drivers/power/max8925_power.c
+++ b/drivers/power/max8925_power.c
@@ -79,6 +79,7 @@ struct max8925_power_info {
 	unsigned		topoff_threshold:2;
 	unsigned		fast_charge:3;
 	unsigned		no_temp_support:1;
+	unsigned		no_insert_detect:1;
 
 	int (*set_charger) (int);
 };
@@ -366,8 +367,10 @@ static __devinit int max8925_init_charger(struct max8925_chip *chip,
 	int ret;
 
 	REQUEST_IRQ(MAX8925_IRQ_VCHG_DC_OVP, "ac-ovp");
-	REQUEST_IRQ(MAX8925_IRQ_VCHG_DC_F, "ac-remove");
-	REQUEST_IRQ(MAX8925_IRQ_VCHG_DC_R, "ac-insert");
+	if (!info->no_insert_detect) {
+		REQUEST_IRQ(MAX8925_IRQ_VCHG_DC_F, "ac-remove");
+		REQUEST_IRQ(MAX8925_IRQ_VCHG_DC_R, "ac-insert");
+	}
 	REQUEST_IRQ(MAX8925_IRQ_VCHG_USB_OVP, "usb-ovp");
 	REQUEST_IRQ(MAX8925_IRQ_VCHG_USB_F, "usb-remove");
 	REQUEST_IRQ(MAX8925_IRQ_VCHG_USB_R, "usb-insert");
@@ -482,6 +485,7 @@ static __devinit int max8925_power_probe(struct platform_device *pdev)
 	info->fast_charge = pdata->fast_charge;
 	info->set_charger = pdata->set_charger;
 	info->no_temp_support = pdata->no_temp_support;
+	info->no_insert_detect = pdata->no_insert_detect;
 
 	max8925_init_charger(chip, info);
 	return 0;
diff --git a/include/linux/mfd/max8925.h b/include/linux/mfd/max8925.h
index 69ec8f0..e742e04 100644
--- a/include/linux/mfd/max8925.h
+++ b/include/linux/mfd/max8925.h
@@ -224,6 +224,7 @@ struct max8925_power_pdata {
 	unsigned	topoff_threshold:2;
 	unsigned	fast_charge:3;	/* charge current */
 	unsigned	no_temp_support:1; /* set if no temperature detect */
+	unsigned	no_insert_detect:1; /* set if no ac insert detect */
 };
 
 /*
-- 
1.7.6

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