From 92de378b739115c8afaae5cd3f25159406bb9914 Mon Sep 17 00:00:00 2001 From: Philip Rakity Date: Fri, 25 Nov 2011 23:19:37 +0400 Subject: [PATCH] max8925_power: No temperature interrupts if temperature not connected Brownstone does not have temperature reading circuit hooked up. This leads to spurious interrupts. Allow the platform layer to indicate no temperature circuit and do not activate interrupts if no temperature control is set Signed-off-by: Philip Rakity Signed-off-by: Anton Vorontsov --- drivers/power/max8925_power.c | 12 ++++++++---- include/linux/mfd/max8925.h | 1 + 2 files changed, 9 insertions(+), 4 deletions(-) diff --git a/drivers/power/max8925_power.c b/drivers/power/max8925_power.c index b16bd71f24fb..83b827cf004b 100644 --- a/drivers/power/max8925_power.c +++ b/drivers/power/max8925_power.c @@ -78,6 +78,7 @@ struct max8925_power_info { unsigned batt_detect:1; /* detecing MB by ID pin */ unsigned topoff_threshold:2; unsigned fast_charge:3; + unsigned no_temp_support:1; int (*set_charger) (int); }; @@ -116,7 +117,7 @@ static irqreturn_t max8925_charger_handler(int irq, void *data) case MAX8925_IRQ_VCHG_DC_F: info->ac_online = 0; __set_charger(info, 0); - dev_dbg(chip->dev, "Adapter is removal\n"); + dev_dbg(chip->dev, "Adapter removed\n"); break; case MAX8925_IRQ_VCHG_USB_R: info->usb_online = 1; @@ -126,7 +127,7 @@ static irqreturn_t max8925_charger_handler(int irq, void *data) case MAX8925_IRQ_VCHG_USB_F: info->usb_online = 0; __set_charger(info, 0); - dev_dbg(chip->dev, "USB is removal\n"); + dev_dbg(chip->dev, "USB removed\n"); break; case MAX8925_IRQ_VCHG_THM_OK_F: /* Battery is not ready yet */ @@ -369,8 +370,10 @@ static __devinit int max8925_init_charger(struct max8925_chip *chip, 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"); - REQUEST_IRQ(MAX8925_IRQ_VCHG_THM_OK_R, "batt-temp-in-range"); - REQUEST_IRQ(MAX8925_IRQ_VCHG_THM_OK_F, "batt-temp-out-range"); + if (!info->no_temp_support) { + REQUEST_IRQ(MAX8925_IRQ_VCHG_THM_OK_R, "batt-temp-in-range"); + REQUEST_IRQ(MAX8925_IRQ_VCHG_THM_OK_F, "batt-temp-out-range"); + } REQUEST_IRQ(MAX8925_IRQ_VCHG_SYSLOW_F, "vsys-high"); REQUEST_IRQ(MAX8925_IRQ_VCHG_SYSLOW_R, "vsys-low"); REQUEST_IRQ(MAX8925_IRQ_VCHG_RST, "charger-reset"); @@ -477,6 +480,7 @@ static __devinit int max8925_power_probe(struct platform_device *pdev) info->topoff_threshold = pdata->topoff_threshold; info->fast_charge = pdata->fast_charge; info->set_charger = pdata->set_charger; + info->no_temp_support = pdata->no_temp_support; max8925_init_charger(chip, info); return 0; diff --git a/include/linux/mfd/max8925.h b/include/linux/mfd/max8925.h index 5259dfe8c585..69ec8f0bd490 100644 --- a/include/linux/mfd/max8925.h +++ b/include/linux/mfd/max8925.h @@ -223,6 +223,7 @@ struct max8925_power_pdata { unsigned batt_detect:1; unsigned topoff_threshold:2; unsigned fast_charge:3; /* charge current */ + unsigned no_temp_support:1; /* set if no temperature detect */ }; /* -- GitLab