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[PATCH 05/06] Power: DA9052 Battery module V6

by Ashish Jangam

Driver for DA9052 battery charger. This driver depends on DA9052 MFD core dirver for definitions and methods. This patch is functionally tested on Samsung SMDKV6410. Signed-off-by: David Dajun Chen <dchen(a)diasemi.com> Signed-off-by: Ashish Jangam <ashish.jangam(a)kpitcummins.com> --- As per the thread https://lkml.org/lkml/2011/11/9/42 a transceiver notifications will be added in the usb gadget driver to support setting of USB charge current limit in the battery driver. This patch adds logic to support that notification. Later when usb gadget driver gets modified this driver needs modification only for registration with event notification. --- Changes since v5 - Added notifier callback for setting USB charging current limit Changes since v4 - Remove unnecessary type cast - Improve code readability Changes since v3 - Included power_supply.h file - Corrected the definition of DA9052_BAT_THRESHOLD macro - Changed definition of charger_type_enum - Added API da9052_battery_read_end_current - Added API da9052_battery_check_status - Changed the way of handling the interrupts in da9052_bat_irq Changes since v2 - Correct code styling for inline functions - Remove averaging algorithm - Set use_for_apm thru board specific parameter --- drivers/power/Kconfig | 7 + drivers/power/Makefile | 1 + drivers/power/da9052-battery.c | 665 ++++++++++++++++++++++++++++++++++++++++ 3 files changed, 673 insertions(+), 0 deletions(-) create mode 100644 drivers/power/da9052-battery.c diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig index 9f88641..9696502 100644 --- a/drivers/power/Kconfig +++ b/drivers/power/Kconfig @@ -150,6 +150,13 @@ config BATTERY_DA9030 Say Y here to enable support for batteries charger integrated into DA9030 PMIC. +config BATTERY_DA9052 + tristate "Dialog DA9052 Battery" + depends on PMIC_DA9052 + help + Say Y here to enable support for batteries charger integrated into + DA9052 PMIC. + config BATTERY_MAX17040 tristate "Maxim MAX17040 Fuel Gauge" depends on I2C diff --git a/drivers/power/Makefile b/drivers/power/Makefile index b4af13d..c570e20 100644 --- a/drivers/power/Makefile +++ b/drivers/power/Makefile @@ -25,6 +25,7 @@ obj-$(CONFIG_BATTERY_WM97XX) += wm97xx_battery.o obj-$(CONFIG_BATTERY_BQ20Z75) += bq20z75.o obj-$(CONFIG_BATTERY_BQ27x00) += bq27x00_battery.o obj-$(CONFIG_BATTERY_DA9030) += da9030_battery.o +obj-$(CONFIG_BATTERY_DA9052) += da9052-battery.o obj-$(CONFIG_BATTERY_MAX17040) += max17040_battery.o obj-$(CONFIG_BATTERY_MAX17042) += max17042_battery.o obj-$(CONFIG_BATTERY_Z2) += z2_battery.o diff --git a/drivers/power/da9052-battery.c b/drivers/power/da9052-battery.c new file mode 100644 index 0000000..37b2840 --- /dev/null +++ b/drivers/power/da9052-battery.c @@ -0,0 +1,665 @@ +/* + * Batttery Driver for Dialog DA9052 PMICs + * + * Copyright(c) 2011 Dialog Semiconductor Ltd. + + * Author: David Dajun Chen <dchen(a)diasemi.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + */ + +#include <linux/delay.h> +#include <linux/freezer.h> +#include <linux/fs.h> +#include <linux/jiffies.h> +#include <linux/module.h> +#include <linux/timer.h> +#include <linux/uaccess.h> +#include <linux/platform_device.h> +#include <linux/power_supply.h> + +#include <linux/mfd/da9052/da9052.h> +#include <linux/mfd/da9052/pdata.h> +#include <linux/mfd/da9052/reg.h> + +/* STATIC CONFIGURATION */ +#define DA9052_BAT_CUTOFF_VOLT 2800 +#define DA9052_BAT_TSH 62000 +#define DA9052_BAT_LOW_CAP 4 +#define DA9052_AVG_SZ 4 +#define DA9052_VC_TBL_SZ 68 +#define DA9052_VC_TBL_REF_SZ 3 + +#define DA9052_ISET_USB_MASK 0x0F +#define DA9052_CHG_USB_ILIM_MASK 0x40 +#define DA9052_CHG_LIM_COLS 16 + +#define DA9052_MEAN(x, y) ((x + y) / 2) + +enum charger_type_enum { + DA9052_NOCHARGER = 1, + DA9052_CHARGER, +}; + +static const u16 da9052_chg_current_lim[2][DA9052_CHG_LIM_COLS] = { + {70, 80, 90, 100, 110, 120, 400, 450, + 500, 550, 600, 650, 700, 900, 1100, 1300}, + {80, 90, 100, 110, 120, 400, 450, 500, + 550, 600, 800, 1000, 1200, 1400, 1600, 1800}, +}; + +static const u16 vc_tbl_ref[3] = {10, 25, 40}; +/* Lookup table for voltage vs capacity */ +static u32 const vc_tbl[3][68][2] = { + /* For temperature 10 degree celisus*/ + { + {4082, 100}, {4036, 98}, + {4020, 96}, {4008, 95}, + {3997, 93}, {3983, 91}, + {3964, 90}, {3943, 88}, + {3926, 87}, {3912, 85}, + {3900, 84}, {3890, 82}, + {3881, 80}, {3873, 79}, + {3865, 77}, {3857, 76}, + {3848, 74}, {3839, 73}, + {3829, 71}, {3820, 70}, + {3811, 68}, {3802, 67}, + {3794, 65}, {3785, 64}, + {3778, 62}, {3770, 61}, + {3763, 59}, {3756, 58}, + {3750, 56}, {3744, 55}, + {3738, 53}, {3732, 52}, + {3727, 50}, {3722, 49}, + {3717, 47}, {3712, 46}, + {3708, 44}, {3703, 43}, + {3700, 41}, {3696, 40}, + {3693, 38}, {3691, 37}, + {3688, 35}, {3686, 34}, + {3683, 32}, {3681, 31}, + {3678, 29}, {3675, 28}, + {3672, 26}, {3669, 25}, + {3665, 23}, {3661, 22}, + {3656, 21}, {3651, 19}, + {3645, 18}, {3639, 16}, + {3631, 15}, {3622, 13}, + {3611, 12}, {3600, 10}, + {3587, 9}, {3572, 7}, + {3548, 6}, {3503, 5}, + {3420, 3}, {3268, 2}, + {2992, 1}, {2746, 0} + }, + /* For temperature 25 degree celisus */ + { + {4102, 100}, {4065, 98}, + {4048, 96}, {4034, 95}, + {4021, 93}, {4011, 92}, + {4001, 90}, {3986, 88}, + {3968, 87}, {3952, 85}, + {3938, 84}, {3926, 82}, + {3916, 81}, {3908, 79}, + {3900, 77}, {3892, 76}, + {3883, 74}, {3874, 73}, + {3864, 71}, {3855, 70}, + {3846, 68}, {3836, 67}, + {3827, 65}, {3819, 64}, + {3810, 62}, {3801, 61}, + {3793, 59}, {3786, 58}, + {3778, 56}, {3772, 55}, + {3765, 53}, {3759, 52}, + {3754, 50}, {3748, 49}, + {3743, 47}, {3738, 46}, + {3733, 44}, {3728, 43}, + {3724, 41}, {3720, 40}, + {3716, 38}, {3712, 37}, + {3709, 35}, {3706, 34}, + {3703, 33}, {3701, 31}, + {3698, 30}, {3696, 28}, + {3693, 27}, {3690, 25}, + {3687, 24}, {3683, 22}, + {3680, 21}, {3675, 19}, + {3671, 18}, {3666, 17}, + {3660, 15}, {3654, 14}, + {3647, 12}, {3639, 11}, + {3630, 9}, {3621, 8}, + {3613, 6}, {3606, 5}, + {3597, 4}, {3582, 2}, + {3546, 1}, {2747, 0} + }, + /* For temperature 40 degree celisus*/ + { + {4114, 100}, {4081, 98}, + {4065, 96}, {4050, 95}, + {4036, 93}, {4024, 92}, + {4013, 90}, {4002, 88}, + {3990, 87}, {3976, 85}, + {3962, 84}, {3950, 82}, + {3939, 81}, {3930, 79}, + {3921, 77}, {3912, 76}, + {3902, 74}, {3893, 73}, + {3883, 71}, {3874, 70}, + {3865, 68}, {3856, 67}, + {3847, 65}, {3838, 64}, + {3829, 62}, {3820, 61}, + {3812, 59}, {3803, 58}, + {3795, 56}, {3787, 55}, + {3780, 53}, {3773, 52}, + {3767, 50}, {3761, 49}, + {3756, 47}, {3751, 46}, + {3746, 44}, {3741, 43}, + {3736, 41}, {3732, 40}, + {3728, 38}, {3724, 37}, + {3720, 35}, {3716, 34}, + {3713, 33}, {3710, 31}, + {3707, 30}, {3704, 28}, + {3701, 27}, {3698, 25}, + {3695, 24}, {3691, 22}, + {3686, 21}, {3681, 19}, + {3676, 18}, {3671, 17}, + {3666, 15}, {3661, 14}, + {3655, 12}, {3648, 11}, + {3640, 9}, {3632, 8}, + {3622, 6}, {3616, 5}, + {3611, 4}, {3604, 2}, + {3594, 1}, {2747, 0} + } +}; + +struct da9052_battery { + struct da9052 *da9052; + struct power_supply psy; + struct notifier_block nb; + int charger_type; + int status; + int health; +}; + +static inline int volt_reg_to_mV(int value) +{ + return ((value * 1000) / 512) + 2500; +} + +static inline int ichg_reg_to_mA(int value) +{ + return (value * 3900) / 1000; +} + +static int da9052_read_chgend_current(struct da9052_battery *bat, + int *current_mA) +{ + int ret; + + if (bat->status == POWER_SUPPLY_STATUS_DISCHARGING) + return -EINVAL; + + ret = da9052_reg_read(bat->da9052, DA9052_ICHG_END_REG); + if (ret < 0) + return ret; + + *current_mA = ichg_reg_to_mA(ret & DA9052_ICHGEND_ICHGEND); + + return 0; +} + +static int da9052_read_chg_current(struct da9052_battery *bat, int *current_mA) +{ + int ret; + + if (bat->status == POWER_SUPPLY_STATUS_DISCHARGING) + return -EINVAL; + + ret = da9052_reg_read(bat->da9052, DA9052_ICHG_AV_REG); + if (ret < 0) + return ret; + + *current_mA = ichg_reg_to_mA(ret & DA9052_ICHGAV_ICHGAV); + + return 0; +} + +static int da9052_bat_check_status(struct da9052_battery *bat, int *status) +{ + u8 v[2] = {0, 0}; + u8 bat_status; + u8 chg_end; + int ret; + int chg_current; + int chg_end_current; + bool dcinsel; + bool dcindet; + bool vbussel; + bool vbusdet; + bool dc; + bool vbus; + + ret = da9052_group_read(bat->da9052, DA9052_STATUS_A_REG, 2, v); + if (ret < 0) + return ret; + + bat_status = v[0]; + chg_end = v[1]; + + dcinsel = bat_status & DA9052_STATUSA_DCINSEL; + dcindet = bat_status & DA9052_STATUSA_DCINDET; + vbussel = bat_status & DA9052_STATUSA_VBUSSEL; + vbusdet = bat_status & DA9052_STATUSA_VBUSDET; + dc = dcinsel && dcindet; + vbus = vbussel && vbusdet; + + /* Preference to WALL(DCIN) charger unit */ + if (dc || vbus) { + bat->charger_type = DA9052_CHARGER; + + /* If charging end flag is set and Charging current is greater + * than charging end limit then battery is charging + */ + if ((chg_end & DA9052_STATUSB_CHGEND) != 0) { + ret = da9052_read_chg_current(bat, &chg_current); + if (ret < 0) + return ret; + ret = da9052_read_chgend_current(bat, &chg_end_current); + if (ret < 0) + return ret; + + if (chg_current >= chg_end_current) + bat->status = POWER_SUPPLY_STATUS_CHARGING; + else + bat->status = POWER_SUPPLY_STATUS_NOT_CHARGING; + } else { + /* If Charging end flag is cleared then battery is + * charging + */ + bat->status = POWER_SUPPLY_STATUS_CHARGING; + } + } else if (dcindet || vbusdet) { + bat->charger_type = DA9052_CHARGER; + bat->status = POWER_SUPPLY_STATUS_NOT_CHARGING; + } else { + bat->charger_type = DA9052_NOCHARGER; + bat->status = POWER_SUPPLY_STATUS_DISCHARGING; + } + + if (status != NULL) + *status = bat->status; + return 0; +} + +static int da9052_bat_read_volt(struct da9052_battery *bat, int *volt_mV) +{ + int volt; + + volt = da9052_adc_manual_read(bat->da9052, DA9052_ADC_MAN_MUXSEL_VBAT); + if (volt < 0) + return volt; + + *volt_mV = volt_reg_to_mV(volt); + + return 0; +} + +static int da9052_bat_check_presence(struct da9052_battery *bat, int *illegal) +{ + int bat_temp; + + bat_temp = da9052_adc_read_temp(bat->da9052); + if (bat_temp < 0) + return bat_temp; + + if (bat_temp > DA9052_BAT_TSH) + *illegal = 1; + else + *illegal = 0; + + return 0; +} + +static int da9052_bat_interpolate(int vbat_lower, int vbat_upper, + int level_lower, int level_upper, + int bat_voltage) +{ + int tmp; + + tmp = ((level_upper - level_lower) * 1000) / (vbat_upper - vbat_lower); + tmp = level_lower + (((bat_voltage - vbat_lower) * tmp) / 1000); + + return tmp; +} + +unsigned char da9052_determine_vc_tbl_index(unsigned char adc_temp) +{ + int i; + + if (adc_temp <= vc_tbl_ref[0]) + return 0; + + if (adc_temp > vc_tbl_ref[DA9052_VC_TBL_REF_SZ - 1]) + return DA9052_VC_TBL_REF_SZ - 1; + + for (i = 0; i < DA9052_VC_TBL_REF_SZ; i++) { + if ((adc_temp > vc_tbl_ref[i]) && + (adc_temp <= DA9052_MEAN(vc_tbl_ref[i], vc_tbl_ref[i + 1]))) + return i; + if ((adc_temp > DA9052_MEAN(vc_tbl_ref[i], vc_tbl_ref[i + 1])) + && (adc_temp <= vc_tbl_ref[i])) + return i + 1; + } +} + +static int da9052_bat_read_capacity(struct da9052_battery *bat, int *capacity) +{ + int adc_temp; + int bat_voltage; + int vbat_lower; + int vbat_upper; + int level_upper; + int level_lower; + int ret; + int flag; + int i = 0; + int j; + + ret = da9052_bat_read_volt(bat, &bat_voltage); + if (ret < 0) + return ret; + + adc_temp = da9052_adc_read_temp(bat->da9052); + if (adc_temp < 0) + return adc_temp; + + i = da9052_determine_vc_tbl_index(adc_temp); + + if (bat_voltage >= vc_tbl[i][0][0]) { + *capacity = 100; + return 0; + } + if (bat_voltage <= vc_tbl[i][DA9052_VC_TBL_SZ - 1][0]) { + *capacity = 0; + return 0; + } + flag = 0; + + for (j = 0; j < (DA9052_VC_TBL_SZ-1); j++) { + if ((bat_voltage <= vc_tbl[i][j][0]) && + (bat_voltage >= vc_tbl[i][j + 1][0])) { + vbat_upper = vc_tbl[i][j][0]; + vbat_lower = vc_tbl[i][j + 1][0]; + level_upper = vc_tbl[i][j][1]; + level_lower = vc_tbl[i][j + 1][1]; + flag = 1; + break; + } + } + if (!flag) + return -EIO; + + *capacity = da9052_bat_interpolate(vbat_lower, vbat_upper, level_lower, + level_upper, bat_voltage); + + return 0; +} + +static int da9052_bat_check_health(struct da9052_battery *bat, int *health) +{ + int ret; + int bat_illegal; + int capacity; + + ret = da9052_bat_check_presence(bat, &bat_illegal); + if (ret < 0) + return ret; + + if (bat_illegal) { + bat->health = POWER_SUPPLY_HEALTH_UNKNOWN; + return 0; + } + + if (bat->health != POWER_SUPPLY_HEALTH_OVERHEAT) { + ret = da9052_bat_read_capacity(bat, &capacity); + if (ret < 0) + return ret; + if (capacity < DA9052_BAT_LOW_CAP) + bat->health = POWER_SUPPLY_HEALTH_DEAD; + else + bat->health = POWER_SUPPLY_HEALTH_GOOD; + } + + *health = bat->health; + + return 0; +} + +static irqreturn_t da9052_bat_irq(int irq, void *data) +{ + struct da9052_battery *bat = data; + + irq -= bat->da9052->irq_base; + + if (irq == DA9052_IRQ_CHGEND) + bat->status = POWER_SUPPLY_STATUS_FULL; + else + da9052_bat_check_status(bat, NULL); + + if (irq == DA9052_IRQ_CHGEND || irq == DA9052_IRQ_DCIN || + irq == DA9052_IRQ_VBUS || irq == DA9052_IRQ_TBAT) { + power_supply_changed(&bat->psy); + } + + return IRQ_HANDLED; +} + +static int da9052_USB_current_notifier(struct notifier_block *nb, + unsigned long events, void *data) +{ + u8 row; + u8 col; + int *current_mA = data; + int ret; + struct da9052_battery *bat = container_of(nb, struct da9052_battery, + nb); + + if (bat->status == POWER_SUPPLY_STATUS_DISCHARGING) + return -EPERM; + + ret = da9052_reg_read(bat->da9052, DA9052_CHGBUCK_REG); + if (ret & DA9052_CHG_USB_ILIM_MASK) + return -EPERM; + + if (bat->da9052->chip_id == DA9052) + row = 0; + else + row = 1; + + if (*current_mA < da9052_chg_current_lim[row][0] || + *current_mA > da9052_chg_current_lim[row][DA9052_CHG_LIM_COLS - 1]) + return -EINVAL; + + for (col = 0; col <= DA9052_CHG_LIM_COLS - 1 ; col++) { + if (*current_mA <= da9052_chg_current_lim[row][col]) + break; + } + + return da9052_reg_update(bat->da9052, DA9052_ISET_REG, + DA9052_ISET_USB_MASK, col); +} + +static int da9052_bat_get_property(struct power_supply *psy, + enum power_supply_property psp, + union power_supply_propval *val) +{ + int ret; + int illegal; + struct da9052_battery *bat = container_of(psy, struct da9052_battery, + psy); + + ret = da9052_bat_check_presence(bat, &illegal); + if (ret < 0) + return ret; + + if (illegal && psp != POWER_SUPPLY_PROP_PRESENT) + return -ENODEV; + + switch (psp) { + case POWER_SUPPLY_PROP_STATUS: + ret = da9052_bat_check_status(bat, &val->intval); + break; + case POWER_SUPPLY_PROP_ONLINE: + val->intval = + (bat->charger_type == DA9052_NOCHARGER) ? 0 : 1; + break; + case POWER_SUPPLY_PROP_PRESENT: + ret = da9052_bat_check_presence(bat, &val->intval); + break; + case POWER_SUPPLY_PROP_HEALTH: + ret = da9052_bat_check_health(bat, &val->intval); + break; + case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN: + val->intval = DA9052_BAT_CUTOFF_VOLT * 1000; + break; + case POWER_SUPPLY_PROP_VOLTAGE_AVG: + ret = da9052_bat_read_volt(bat, &val->intval); + break; + case POWER_SUPPLY_PROP_CURRENT_AVG: + ret = da9052_read_chg_current(bat, &val->intval); + break; + case POWER_SUPPLY_PROP_CAPACITY: + ret = da9052_bat_read_capacity(bat, &val->intval); + break; + case POWER_SUPPLY_PROP_TEMP: + val->intval = da9052_adc_read_temp(bat->da9052); + ret = val->intval; + break; + case POWER_SUPPLY_PROP_TECHNOLOGY: + val->intval = POWER_SUPPLY_TECHNOLOGY_LION; + break; + default: + return -EINVAL; + } + return ret; +} + +static enum power_supply_property da9052_bat_props[] = { + POWER_SUPPLY_PROP_STATUS, + POWER_SUPPLY_PROP_ONLINE, + POWER_SUPPLY_PROP_PRESENT, + POWER_SUPPLY_PROP_HEALTH, + POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN, + POWER_SUPPLY_PROP_VOLTAGE_AVG, + POWER_SUPPLY_PROP_CURRENT_AVG, + POWER_SUPPLY_PROP_CAPACITY, + POWER_SUPPLY_PROP_TEMP, + POWER_SUPPLY_PROP_TECHNOLOGY, +}; + +static struct power_supply template_battery = { + .name = "da9052-bat", + .type = POWER_SUPPLY_TYPE_BATTERY, + .properties = da9052_bat_props, + .num_properties = ARRAY_SIZE(da9052_bat_props), + .get_property = da9052_bat_get_property, +}; + +static const char *const da9052_bat_irqs[] = { + "BATT TEMP", + "DCIN DET", + "DCIN REM", + "VBUS DET", + "VBUS REM", + "CHG END", +}; + +static s32 __devinit da9052_bat_probe(struct platform_device *pdev) +{ + struct da9052_pdata *pdata; + struct da9052_battery *bat; + int ret; + int irq; + int i; + + bat = kzalloc(sizeof(struct da9052_battery), GFP_KERNEL); + if (!bat) + return -ENOMEM; + + bat->da9052 = dev_get_drvdata(pdev->dev.parent); + bat->psy = template_battery; + bat->charger_type = DA9052_NOCHARGER; + bat->status = POWER_SUPPLY_STATUS_UNKNOWN; + bat->health = POWER_SUPPLY_HEALTH_UNKNOWN; + bat->nb.notifier_call = da9052_USB_current_notifier; + + pdata = bat->da9052->dev->platform_data; + if (pdata != NULL && pdata->use_for_apm) + bat->psy.use_for_apm = pdata->use_for_apm; + else + bat->psy.use_for_apm = 1; + + for (i = 0; i < ARRAY_SIZE(da9052_bat_irqs); i++) { + irq = platform_get_irq_byname(pdev, da9052_bat_irqs[i]); + ret = request_threaded_irq(bat->da9052->irq_base + irq, + NULL, da9052_bat_irq, + IRQF_TRIGGER_LOW | IRQF_ONESHOT, + da9052_bat_irqs[i], bat); + if (ret != 0) { + dev_err(bat->da9052->dev, + "DA9052 failed to request %s IRQ %d: %d\n", + da9052_bat_irqs[i], irq, ret); + goto err; + } + } + + ret = power_supply_register(&pdev->dev, &bat->psy); + if (ret) + goto err; + + return 0; + +err: + for (; i >= 0; i--) { + irq = platform_get_irq_byname(pdev, da9052_bat_irqs[i]); + free_irq(bat->da9052->irq_base + irq, bat); + } + kfree(bat); + return ret; +} +static int __devexit da9052_bat_remove(struct platform_device *pdev) +{ + int i; + int irq; + struct da9052_battery *bat = platform_get_drvdata(pdev); + + for (i = 0; i < ARRAY_SIZE(da9052_bat_irqs); i++) { + irq = platform_get_irq_byname(pdev, da9052_bat_irqs[i]); + free_irq(bat->da9052->irq_base + irq, bat); + } + power_supply_unregister(&bat->psy); + + return 0; +} + +static struct platform_driver da9052_bat_driver = { + .probe = da9052_bat_probe, + .remove = __devexit_p(da9052_bat_remove), + .driver = { + .name = "da9052-bat", + .owner = THIS_MODULE, + }, +}; + +static int __init da9052_bat_init(void) +{ + return platform_driver_register(&da9052_bat_driver); +} +module_init(da9052_bat_init); + +static void __exit da9052_bat_exit(void) +{ + platform_driver_unregister(&da9052_bat_driver); +} +module_exit(da9052_bat_exit); + +MODULE_DESCRIPTION("DA9052 BAT Device Driver"); +MODULE_AUTHOR("David Dajun Chen <dchen(a)diasemi.com>"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:da9052-bat");

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[ACTIVITY] Graphics WG weekly report - wk01.2012 (20120102 - 20120106)

by Ilias Biris

Dashboard for the release and news are all in https://wiki.linaro.org/WorkingGroups/Middleware/Graphics/WeeklyReport Last meeting minutes: https://wiki.linaro.org/WorkingGroups/Middleware/Graphics/Notes/2012-01-04 Highlights: Not much to highlight on - apart from working for the release 12.01 after coming back from the holidays. Check the link at the top for a list of the blueprints aimed at 12.01 as of now. - bug #907151 - glmark2 crash on ICS for Origen - the main issue has been fixed, now looking at the secondary crash which may not be due to glmark2 - Unity/nux/compiz: Picking up from Travis, Marc is now looking at the work involved in managing the pieces needed to be merged upstream. The merge process is underway with Canonical DX and Graphics team is helping to smooth out any possible issues Other issues: - Dashboard bugs: #881789 - "timeout in image deployment" and #904796 - "provide staging/development lava server instances" are a risk for our work with the dashboard - Origen doesn't have h/w(Mali) accelerated Ubuntu and it takes a lot of time to set up proper LAVA test environment Best regards, -- Ilias Biris ilias.biris(a)linaro.org Project Manager, Linaro M: +358504839608, IRC: ibiris Skype: ilias_biris Linaro.org│ Open source software for ARM SoCs

13 years, 8 months

[RFC PATCH 0/3] thermal: exynos: Add kernel thermal support for exynos platform

by Amit Daniel Kachhap

All the patchset based on Kernel version 3.2-rc6 and uses the cpufreq cooling registration api's implemented in earlier patchset http://www.spinics.net/lists/linux-pm/msg26500.html The code added in this patchset adds a thermal interface layer for samsung exynos platforms. This layer is registered from the hwmon based temperature sensor and recieves/monitor the temperature from the sensor and informs the generic thermal layer to take the necessary cooling action. Currently this layer can be used to create only one thermal zone and hence only one temperature sensor can register. Some modifications are done in the temperature sensor driver to export the information needed for the thermal interface to register with the core linux thermal framework and with the cpu frequency based cooling devices. A simple data/control flow diagrams to illustrate this, Core Linux thermal <-------> Exynos thermal <-------- Temperature Sensor | | \|/ | Cpufreq cooling device <----- Amit Daniel Kachhap (3): thermal: exynos: Add thermal interface support for linux thermal layer thermal: exynos4: Register the tmu sensor with the thermal interface layer ARM: exynos4: Add thermal sensor driver platform device support arch/arm/mach-exynos/Kconfig | 12 ++ arch/arm/mach-exynos/Makefile | 1 + arch/arm/mach-exynos/clock.c | 4 + arch/arm/mach-exynos/dev-tmu.c | 64 +++++++ arch/arm/mach-exynos/include/mach/irqs.h | 2 + arch/arm/mach-exynos/include/mach/map.h | 1 + arch/arm/mach-exynos/mach-origen.c | 1 + arch/arm/plat-samsung/include/plat/devs.h | 1 + drivers/hwmon/exynos4_tmu.c | 34 ++++- drivers/thermal/Kconfig | 8 + drivers/thermal/Makefile | 1 + drivers/thermal/exynos_thermal.c | 255 +++++++++++++++++++++++++++++ include/linux/exynos_thermal.h | 59 +++++++ include/linux/platform_data/exynos4_tmu.h | 7 + 14 files changed, 447 insertions(+), 3 deletions(-) create mode 100644 arch/arm/mach-exynos/dev-tmu.c create mode 100644 drivers/thermal/exynos_thermal.c create mode 100644 include/linux/exynos_thermal.h

13 years, 8 months

Re: [PATCH V4 0/5] ARM: exynos: Add l2 retention mode cpuidle state

by amit kachhap

Hi Mr kim, All the comments have been addressed for the Exynos cpu idle patchset. The updated patchset was posted about one month back and there have been no further comments on the patchset since then. As this patchset seems to be stable now, do you think these these patches can merged in this 3.3 merge window? Kindly let me know your opinion. Thanks, Amit Daniel On Mon, Dec 5, 2011 at 4:36 PM, Amit Daniel Kachhap <amit.kachhap(a)linaro.org> wrote: > Changes since V3: > *Implemented Russell feedback and moved sleep magic 4byte memory before > s3c_cpu_resume to data section. > > Changes since V2: > *Implemented the suggestion of MyungJoo Ham and used INFORM0/1 > registers for resume for some board versions. > *Added back save/restore through CPU PM notifiers as suggested by > Lorenzo Pieralisi. This is useful to restore vfp state. > *some patch modularization (s5p/exynos) and proper commit logs. > > Changes since V1: > *rebased the whole patch against 3.2-rc1 tree > *removed GIC save/restore in AFTR cpuidle state as it is external > to cpu powerdomain > *Added L2 setup code through device tree > *Removed only l2 save/restore registers in sleep > > This Patch series adds support for AFTR mode cpuidle state based on > patch (http://www.spinics.net/lists/arm-kernel/msg132243.html) earlier > submitted by Jaecheol Lee <jc.lee(a)samsung.com>. > > This patch uses CPU PM notifiers , common l2 save/restore and > new cpu_suspend/resume interfaces and is based on the tip of > for-next branch of samsung tree. > (git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung.git for-next). > > Amit Daniel Kachhap (5): > ARM: exynos: Add support AFTR mode on EXYNOS4210 > ARM: exynos: save L2 settings during bootup > ARM: s5p: add L2 early resume code > ARM: exynos: remove useless code to save/restore L2 > ARM: exynos: Enable l2 configuration through device tree > > arch/arm/mach-exynos/cpu.c | 60 +++++++++--- > arch/arm/mach-exynos/cpuidle.c | 152 ++++++++++++++++++++++++++++++- > arch/arm/mach-exynos/include/mach/pmu.h | 2 + > arch/arm/mach-exynos/pm.c | 15 --- > arch/arm/plat-s5p/sleep.S | 44 ++++++++- > 5 files changed, 233 insertions(+), 40 deletions(-) > > -- > To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in > the body of a message to majordomo(a)vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html

13 years, 8 months

Binary toolchain preview

by Michael Hope

Hi there. We're putting together pre-built versions of the Linaro toolchain that cross-compile for the Linaro LEB and run on generic Linux or Windows. I've put a preview release together and would love some feedback. The binaries are available here: http://people.linaro.org/~michaelh/incoming/binaries/ The bug tracker is here: https://bugs.launchpad.net/linaro-toolchain-binaries There are a number of usability bugs logged already but nothing severe. You can also check out the requirements[1] and basic documentation[2]. Feedback is appreciated! -- Michael [1] https://wiki.linaro.org/WorkingGroups/ToolChain/Specs/BinaryToolchain [2] http://people.linaro.org/~michaelh/incoming/binaries/README.html

13 years, 8 months

snowball does not compile on linux-next

by Daniel Lezcano

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, the kernel does not compile when CONFIG_CLKSRC_DBX500_PRCMU_SCHED_CLOCK is set. it fails with : CHK include/linux/version.h CHK include/generated/utsrelease.h make[1]: `include/generated/mach-types.h' is up to date. CALL scripts/checksyscalls.sh CHK include/generated/compile.h CC drivers/clocksource/clksrc-dbx500-prcmu.o drivers/clocksource/clksrc-dbx500-prcmu.c:61: warning: type defaults to ?int? in declaration of ?DEFINE_CLOCK_DATA? drivers/clocksource/clksrc-dbx500-prcmu.c:61: warning: parameter names (without types) in function declaration drivers/clocksource/clksrc-dbx500-prcmu.c: In function ?sched_clock?: drivers/clocksource/clksrc-dbx500-prcmu.c:72: error: implicit declaration of function ?cyc_to_sched_clock? drivers/clocksource/clksrc-dbx500-prcmu.c:72: error: ?cd? undeclared (first use in this function) drivers/clocksource/clksrc-dbx500-prcmu.c:72: error: (Each undeclared identifier is reported only once drivers/clocksource/clksrc-dbx500-prcmu.c:72: error: for each function it appears in.) drivers/clocksource/clksrc-dbx500-prcmu.c: In function ?clksrc_dbx500_prcmu_update_sched_clock?: drivers/clocksource/clksrc-dbx500-prcmu.c:78: error: implicit declaration of function ?update_sched_clock? drivers/clocksource/clksrc-dbx500-prcmu.c:78: error: ?cd? undeclared (first use in this function) drivers/clocksource/clksrc-dbx500-prcmu.c: In function ?clksrc_dbx500_prcmu_init?: drivers/clocksource/clksrc-dbx500-prcmu.c:100: error: implicit declaration of function ?init_sched_clock? drivers/clocksource/clksrc-dbx500-prcmu.c:100: error: ?cd? undeclared (first use in this function) make[2]: *** [drivers/clocksource/clksrc-dbx500-prcmu.o] Error 1 make[1]: *** [drivers/clocksource] Error 2 make[1]: *** Waiting for unfinished jobs.... make: *** [drivers] Error 2 make: *** Waiting for unfinished jobs.... Is it dead code ? Thanks -- Daniel - -- <http://www.linaro.org/> Linaro.org ? Open source software for ARM SoCs Follow Linaro: <http://www.facebook.com/pages/Linaro> Facebook | <http://twitter.com/#!/linaroorg> Twitter | <http://www.linaro.org/linaro-blog/> Blog -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQEcBAEBAgAGBQJPAZnPAAoJEAKBbMCpUGYASZEH/j++IpjESlRymu9JLcTOsc4e WId52JNiqAkWdkNenstPQu/Rfc7cByR9qYRGKcZH91SvzsMia3fmMRCqCzq4RYgQ gyWy4wzd881YvlBwnwqHXqeWr8DsKwTvT4fnc0lw/c6HE0paTtWaJ/Zcw0XC4Uv1 skKUht7u1rjZShqXvb9Wb97gXZlbH3JLTdxJpJLG8BV3UjgrbviObdNxyo8hx9hm hjwXatdynl5AtS9ls3K8lrbFDAi/6FULwD2aliXioda5O9mzpQDMgK6F7yUol2qc xXgdqDODzpbJGXgbPfrTVb8xgeM60j0SiHhovbWxHVj2t2jBjBzbZ1zJgk06RAM= =GUyt -----END PGP SIGNATURE-----

13 years, 8 months

[PATCH] Origen: Select SCLKMPLL as FIMD0 parent clock

by Chander Kashyap

Signed-off-by: Chander Kashyap <chander.kashyap(a)linaro.org> --- board/samsung/origen/lowlevel_init.S | 5 +++++ board/samsung/origen/origen_setup.h | 12 ++++++++++++ 2 files changed, 17 insertions(+), 0 deletions(-) diff --git a/board/samsung/origen/lowlevel_init.S b/board/samsung/origen/lowlevel_init.S index 0eebbfc..9283201 100644 --- a/board/samsung/origen/lowlevel_init.S +++ b/board/samsung/origen/lowlevel_init.S @@ -158,6 +158,11 @@ system_clock_init: ldr r2, =CLK_SRC_PERIL0_OFFSET str r1, [r0, r2] + /* FIMD0 */ + ldr r1, =CLK_SRC_LCD0_VAL + ldr r2, =CLK_SRC_LCD0_OFFSET + str r1, [r0, r2] + /* wait ?us */ mov r1, #0x10000 3: subs r1, r1, #1 diff --git a/board/samsung/origen/origen_setup.h b/board/samsung/origen/origen_setup.h index d949ad2..94cccca 100644 --- a/board/samsung/origen/origen_setup.h +++ b/board/samsung/origen/origen_setup.h @@ -56,6 +56,8 @@ #define CLK_SRC_PERIL0_OFFSET 0xC250 #define CLK_DIV_PERIL0_OFFSET 0xC550 +#define CLK_SRC_LCD0_OFFSET 0xC234 + #define APLL_LOCK_OFFSET 0x14000 #define MPLL_LOCK_OFFSET 0x14008 #define APLL_CON0_OFFSET 0x14100 @@ -351,6 +353,16 @@ | (UART1_RATIO << 4) \ | (UART0_RATIO << 0)) +/* CLK_SRC_LCD0 */ +#define FIMD_SEL_SCLKMPLL 6 +#define MDNIE0_SEL_XUSBXTI 1 +#define MDNIE_PWM0_SEL_XUSBXTI 1 +#define MIPI0_SEL_XUSBXTI 1 +#define CLK_SRC_LCD0_VAL ((MIPI0_SEL_XUSBXTI << 12) \ + | (MDNIE_PWM0_SEL_XUSBXTI << 8) \ + | (MDNIE0_SEL_XUSBXTI << 4) \ + | (FIMD_SEL_SCLKMPLL << 0)) + /* Required period to generate a stable clock output */ /* PLL_LOCK_TIME */ #define PLL_LOCKTIME 0x1C20 -- 1.7.5.4

13 years, 8 months

[PATCH V2 0/2] Exynos Related fixes

by Chander Kashyap

Chander Kashyap (2): Exynos: PWM: Add TCMPB3 field in pwm structure Exynos: Fix ARM Clock frequency calculation arch/arm/cpu/armv7/exynos/clock.c | 15 +++++++++------ arch/arm/include/asm/arch-exynos/pwm.h | 2 +- 2 files changed, 10 insertions(+), 7 deletions(-) -- 1.7.5.4

13 years, 8 months

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