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79 lines
2.6 KiB
Diff
79 lines
2.6 KiB
Diff
From be0f111b3d1570dec174ff301d08bad995ccf1e6 Mon Sep 17 00:00:00 2001
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From: Andy Green <andy@openmoko.com>
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Date: Tue, 22 Jul 2008 22:17:15 +0100
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Subject: [PATCH] fix-pcf50633-only-do-platform-callback-once-per-event.patch
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Reported-by: Holger Freyther <zecke@openmoko.org>
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We harmlessly repeated PMU platform callbacks about charging state twice.
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Clean it up and leave it to pcf50633_charge_enable() to report once.
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Also tidies the sequencing so we set current limit before we enable
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charger now.
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Signed-off-by: Andy Green <andy@openmoko.com>
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---
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drivers/i2c/chips/pcf50633.c | 35 ++++++++++++++++-------------------
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1 files changed, 16 insertions(+), 19 deletions(-)
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diff --git a/drivers/i2c/chips/pcf50633.c b/drivers/i2c/chips/pcf50633.c
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index bd47ebc..98c254c 100644
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--- a/drivers/i2c/chips/pcf50633.c
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+++ b/drivers/i2c/chips/pcf50633.c
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@@ -1392,6 +1392,7 @@ static DEVICE_ATTR(voltage_hcldo, S_IRUGO | S_IWUSR, show_vreg, set_vreg);
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static void pcf50633_usb_curlim_set(struct pcf50633_data *pcf, int ma)
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{
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u_int8_t bits;
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+ int active = 0;
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pcf->last_curlim_set = ma;
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@@ -1407,30 +1408,26 @@ static void pcf50633_usb_curlim_set(struct pcf50633_data *pcf, int ma)
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else
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bits = PCF50633_MBCC7_USB_SUSPEND;
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- DEBUGPC("pcf50633_usb_curlim_set -> %dmA\n", ma);
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-
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- if (!pcf->pdata->cb)
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- goto set_it;
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+ /* set the nearest charging limit */
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+ reg_set_bit_mask(pcf, PCF50633_REG_MBCC7, PCF56033_MBCC7_USB_MASK,
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+ bits);
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+ /* with this charging limit, is charging actually meaningful? */
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switch (bits) {
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- case PCF50633_MBCC7_USB_100mA:
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- case PCF50633_MBCC7_USB_SUSPEND:
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- /* no charging is gonna be happening */
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- pcf->pdata->cb(&pcf->client.dev,
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- PCF50633_FEAT_MBC, PMU_EVT_CHARGER_IDLE);
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- pcf50633_charge_enable(pcf50633_global, 0);
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+ case PCF50633_MBCC7_USB_500mA:
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+ case PCF50633_MBCC7_USB_1000mA:
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+ /* yes with this charging limit, we can do real charging */
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+ active = 1;
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break;
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- default: /* right charging context that if there is power, we charge */
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- if (pcf->flags & PCF50633_F_USB_PRESENT)
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- pcf->pdata->cb(&pcf->client.dev,
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- PCF50633_FEAT_MBC, PMU_EVT_CHARGER_ACTIVE);
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- pcf50633_charge_enable(pcf50633_global, 1);
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+ default:
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+ /* no charging is gonna be happening */
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break;
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}
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-
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-set_it:
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- reg_set_bit_mask(pcf, PCF50633_REG_MBCC7, PCF56033_MBCC7_USB_MASK,
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- bits);
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+ /*
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+ * enable or disable charging according to current limit -- this will
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+ * also throw a platform notification callback about it
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+ */
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+ pcf50633_charge_enable(pcf50633_global, active);
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/* clear batfull */
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reg_set_bit_mask(pcf, PCF50633_REG_MBCC1,
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--
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1.5.6.5
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