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Diffstat (limited to 'target/linux/s3c24xx/patches-2.6.26/1219-fix-bq27000-charger-state-tracking.patch.patch')
-rwxr-xr-xtarget/linux/s3c24xx/patches-2.6.26/1219-fix-bq27000-charger-state-tracking.patch.patch283
1 files changed, 0 insertions, 283 deletions
diff --git a/target/linux/s3c24xx/patches-2.6.26/1219-fix-bq27000-charger-state-tracking.patch.patch b/target/linux/s3c24xx/patches-2.6.26/1219-fix-bq27000-charger-state-tracking.patch.patch
deleted file mode 100755
index 37458c24ce..0000000000
--- a/target/linux/s3c24xx/patches-2.6.26/1219-fix-bq27000-charger-state-tracking.patch.patch
+++ /dev/null
@@ -1,283 +0,0 @@
-From 40023f1501f3cd5ec55739b3142e9e45a67bb735 Mon Sep 17 00:00:00 2001
-From: Andy Green <andy@openmoko.com>
-Date: Fri, 25 Jul 2008 23:06:20 +0100
-Subject: [PATCH] fix-bq27000-charger-state-tracking.patch
-
-Charger trigger stuff goes and asks for POWER_SUPPLY_PROP_STATUS
-to figure out what the charger state is. But until now, we only
-reported there what we found out from HDQ, and the HDQ registers
-are not updated very often in the coulomb counter, it can be 4
-or more second lag before it tells us about what it experiences.
-
-When we react to USB insertion and only after 500ms debounce tell
-power_supply stuff that something changed, it most times will
-see old pre-USB-insertion state from bq27000 over HDQ at that time
-and will report it ain't charging, buggering up the LED trigger
-tracking.
-
-This patch maintains distance between bq27000 and pcf50633 by
-having platform callbacks in bq27000 that it can use to ask about
-definitive charger "online" presence and "activity", whether the
-charger says it is charging. If these callbacks are implemented
-(and we implement them in this patch up in mach_gta02.c) then
-this information is used in preference to what is found from
-HDQ.
-
-Result is if you set the LED trigger like this:
-
-echo bat-charging > /sys/devices/platform/gta02-led.0/leds/gta02-aux:red/trigger
-
-then it lights up properly on USB insertion now, goes away on
-removal properly, as as far as I saw, when charging stops too.
-
-Signed-off-by: Andy Green <andy@openmoko.com>
----
- arch/arm/mach-s3c2440/mach-gta02.c | 32 ++++++++++++++---
- drivers/power/bq27000_battery.c | 66 ++++++++++++++++++++++++-----------
- include/linux/bq27000_battery.h | 2 +
- 3 files changed, 73 insertions(+), 27 deletions(-)
-
-diff --git a/arch/arm/mach-s3c2440/mach-gta02.c b/arch/arm/mach-s3c2440/mach-gta02.c
-index f30abb6..1fcd3fd 100644
---- a/arch/arm/mach-s3c2440/mach-gta02.c
-+++ b/arch/arm/mach-s3c2440/mach-gta02.c
-@@ -96,6 +96,9 @@ struct resume_dependency resume_dep_jbt_glamo;
- struct resume_dependency resume_dep_glamo_mci_pcf;
-
-
-+static int gta02_charger_online_status;
-+static int gta02_charger_active_status;
-+
- /* define FIQ IPC struct */
- /*
- * contains stuff FIQ ISR modifies and normal kernel code can see and use
-@@ -457,12 +460,25 @@ static struct s3c2410_uartcfg gta02_uartcfgs[] = {
-
- /* BQ27000 Battery */
-
-+static int gta02_get_charger_online_status(void)
-+{
-+ return gta02_charger_online_status;
-+}
-+
-+static int gta02_get_charger_active_status(void)
-+{
-+ return gta02_charger_active_status;
-+}
-+
-+
- struct bq27000_platform_data bq27000_pdata = {
- .name = "bat",
- .rsense_mohms = 20,
- .hdq_read = gta02hdq_read,
- .hdq_write = gta02hdq_write,
- .hdq_initialized = gta02hdq_initialized,
-+ .get_charger_online_status = gta02_get_charger_online_status,
-+ .get_charger_active_status = gta02_get_charger_active_status
- };
-
- struct platform_device bq27000_battery_device = {
-@@ -481,16 +497,20 @@ static int pmu_callback(struct device *dev, unsigned int feature,
- switch (feature) {
- case PCF50633_FEAT_MBC:
- switch (event) {
-- case PMU_EVT_INSERT:
-+ case PMU_EVT_CHARGER_IDLE:
-+ gta02_charger_active_status = 0;
-+ break;
-+ case PMU_EVT_CHARGER_ACTIVE:
-+ gta02_charger_active_status = 1;
-+ break;
- case PMU_EVT_USB_INSERT:
-- pcf50633_charge_enable(pcf50633_global, 1);
-+ gta02_charger_online_status = 1;
- break;
-- case PMU_EVT_REMOVE:
- case PMU_EVT_USB_REMOVE:
-- pcf50633_charge_enable(pcf50633_global, 0);
-+ gta02_charger_online_status = 0;
- break;
-- case PMU_EVT_CHARGER_IDLE:
-- case PMU_EVT_CHARGER_ACTIVE:
-+ case PMU_EVT_INSERT: /* adapter is unsused */
-+ case PMU_EVT_REMOVE: /* adapter is unused */
- break;
- default:
- break;
-diff --git a/drivers/power/bq27000_battery.c b/drivers/power/bq27000_battery.c
-index 5598568..7020608 100644
---- a/drivers/power/bq27000_battery.c
-+++ b/drivers/power/bq27000_battery.c
-@@ -113,12 +113,7 @@ enum bq27000_status_flags {
- struct bq27000_device_info {
- struct device *dev;
- struct power_supply bat;
--
-- int rsense_mohms; /* from platform */
--
-- int (*hdq_initialized)(void); /* from platform */
-- int (*hdq_read)(int); /* from platform */
-- int (*hdq_write)(int, u8); /* from platform */
-+ struct bq27000_platform_data *pdata;
- };
-
- /*
-@@ -136,16 +131,16 @@ static int hdq_read16(struct bq27000_device_info *di, int address)
-
- while (retries--) {
-
-- high = (di->hdq_read)(address + 1); /* high part */
-+ high = (di->pdata->hdq_read)(address + 1); /* high part */
-
- if (high < 0)
- return high;
-- acc = (di->hdq_read)(address);
-+ acc = (di->pdata->hdq_read)(address);
- if (acc < 0)
- return acc;
-
- /* confirm high didn't change between reading it and low */
-- if (high == (di->hdq_read)(address + 1))
-+ if (high == (di->pdata->hdq_read)(address + 1))
- return (high << 8) | acc;
- }
-
-@@ -170,12 +165,36 @@ static int bq27000_battery_get_property(struct power_supply *psy,
- int v, n;
- struct bq27000_device_info *di = to_bq27000_device_info(psy);
-
-- if (!(di->hdq_initialized)())
-+ if (!(di->pdata->hdq_initialized)())
- return -EINVAL;
-
- switch (psp) {
- case POWER_SUPPLY_PROP_STATUS:
- val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
-+
-+ if (!di->pdata->get_charger_online_status)
-+ goto use_bat;
-+ if ((di->pdata->get_charger_online_status)()) {
-+ /*
-+ * charger is definitively present
-+ * we report our state in terms of what it says it
-+ * is doing
-+ */
-+ if (!di->pdata->get_charger_active_status)
-+ goto use_bat;
-+ if ((di->pdata->get_charger_active_status)())
-+ val->intval = POWER_SUPPLY_STATUS_CHARGING;
-+ else
-+ val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING;
-+ break;
-+ }
-+use_bat:
-+ /*
-+ * either the charger is not connected, or the
-+ * platform doesn't give info about charger, use battery state
-+ * but... battery state can be out of date by 4 seconds or
-+ * so... use the platform callbacks if possible.
-+ */
- v = hdq_read16(di, BQ27000_AI_L);
- if (v < 0)
- return v;
-@@ -189,7 +208,7 @@ static int bq27000_battery_get_property(struct power_supply *psy,
- break;
- }
- /* power is actually going in or out... */
-- v = (di->hdq_read)(BQ27000_FLAGS);
-+ v = (di->pdata->hdq_read)(BQ27000_FLAGS);
- if (v < 0)
- return v;
- if (v & BQ27000_STATUS_CHGS)
-@@ -205,7 +224,7 @@ static int bq27000_battery_get_property(struct power_supply *psy,
- val->intval = v * 1000;
- break;
- case POWER_SUPPLY_PROP_CURRENT_NOW:
-- v = (di->hdq_read)(BQ27000_FLAGS);
-+ v = (di->pdata->hdq_read)(BQ27000_FLAGS);
- if (v < 0)
- return v;
- if (v & BQ27000_STATUS_CHGS)
-@@ -215,13 +234,13 @@ static int bq27000_battery_get_property(struct power_supply *psy,
- v = hdq_read16(di, BQ27000_AI_L);
- if (v < 0)
- return v;
-- val->intval = (v * n) / di->rsense_mohms;
-+ val->intval = (v * n) / di->pdata->rsense_mohms;
- break;
- case POWER_SUPPLY_PROP_CHARGE_FULL:
- v = hdq_read16(di, BQ27000_LMD_L);
- if (v < 0)
- return v;
-- val->intval = (v * 3570) / di->rsense_mohms;
-+ val->intval = (v * 3570) / di->pdata->rsense_mohms;
- break;
- case POWER_SUPPLY_PROP_TEMP:
- v = hdq_read16(di, BQ27000_TEMP_L);
-@@ -235,12 +254,12 @@ static int bq27000_battery_get_property(struct power_supply *psy,
- val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
- break;
- case POWER_SUPPLY_PROP_CAPACITY:
-- val->intval = (di->hdq_read)(BQ27000_RSOC);
-+ val->intval = (di->pdata->hdq_read)(BQ27000_RSOC);
- if (val->intval < 0)
- return val->intval;
- break;
- case POWER_SUPPLY_PROP_PRESENT:
-- v = (di->hdq_read)(BQ27000_RSOC);
-+ v = (di->pdata->hdq_read)(BQ27000_RSOC);
- val->intval = !(v < 0);
- break;
- case POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW:
-@@ -255,6 +274,12 @@ static int bq27000_battery_get_property(struct power_supply *psy,
- return v;
- val->intval = 60 * v;
- break;
-+ case POWER_SUPPLY_PROP_ONLINE:
-+ if (di->pdata->get_charger_online_status)
-+ val->intval = (di->pdata->get_charger_online_status)();
-+ else
-+ return -EINVAL;
-+ break;
- default:
- return -EINVAL;
- }
-@@ -272,7 +297,8 @@ static enum power_supply_property bq27000_battery_props[] = {
- POWER_SUPPLY_PROP_PRESENT,
- POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
- POWER_SUPPLY_PROP_TIME_TO_FULL_NOW,
-- POWER_SUPPLY_PROP_CAPACITY
-+ POWER_SUPPLY_PROP_CAPACITY,
-+ POWER_SUPPLY_PROP_ONLINE
- };
-
- static int bq27000_battery_probe(struct platform_device *pdev)
-@@ -301,10 +327,8 @@ static int bq27000_battery_probe(struct platform_device *pdev)
- di->bat.get_property = bq27000_battery_get_property;
- di->bat.external_power_changed =
- bq27000_battery_external_power_changed;
-- di->hdq_read = pdata->hdq_read;
-- di->hdq_write = pdata->hdq_write;
-- di->rsense_mohms = pdata->rsense_mohms;
-- di->hdq_initialized = pdata->hdq_initialized;
-+ di->bat.use_for_apm = 1;
-+ di->pdata = pdata;
-
- retval = power_supply_register(&pdev->dev, &di->bat);
- if (retval) {
-diff --git a/include/linux/bq27000_battery.h b/include/linux/bq27000_battery.h
-index fed4287..a617466 100644
---- a/include/linux/bq27000_battery.h
-+++ b/include/linux/bq27000_battery.h
-@@ -9,6 +9,8 @@ struct bq27000_platform_data {
- int (*hdq_read)(int);
- int (*hdq_write)(int, u8);
- int (*hdq_initialized)(void);
-+ int (*get_charger_online_status)(void);
-+ int (*get_charger_active_status)(void);
- };
-
- #endif
---
-1.5.6.3
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-20 04:13:43 +0000