From bc6b4132bcae4b8e59766ba2dae8f377009b26d0 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Tue, 26 Feb 2013 14:02:31 +0000 Subject: [PATCH] mfd: ab8500-debug: Add support for the AB8540 Allow GPADC debug information to be shown when executing on an AB8540 based platform. Signed-off-by: Alexandre Bourdiol Reviewed-by: Marcus COOPER Reviewed-by: Philippe LANGLAIS Acked-by: Samuel Ortiz --- drivers/mfd/ab8500-debugfs.c | 286 +++++++++++++++++++++++- drivers/mfd/ab8500-gpadc.c | 44 ++++ include/linux/mfd/abx500/ab8500-gpadc.h | 3 + 3 files changed, 332 insertions(+), 1 deletion(-) diff --git a/drivers/mfd/ab8500-debugfs.c b/drivers/mfd/ab8500-debugfs.c index 074eea9e4bfd..1e44d65e1771 100644 --- a/drivers/mfd/ab8500-debugfs.c +++ b/drivers/mfd/ab8500-debugfs.c @@ -1633,6 +1633,254 @@ static const struct file_operations ab8500_gpadc_die_temp_fops = { .owner = THIS_MODULE, }; +static int ab8540_gpadc_xtal_temp_print(struct seq_file *s, void *p) +{ + int xtal_temp_raw; + int xtal_temp_convert; + struct ab8500_gpadc *gpadc; + + gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); + xtal_temp_raw = ab8500_gpadc_read_raw(gpadc, XTAL_TEMP, + avg_sample, trig_edge, trig_timer, conv_type); + xtal_temp_convert = ab8500_gpadc_ad_to_voltage(gpadc, XTAL_TEMP, + xtal_temp_raw); + + return seq_printf(s, "%d,0x%X\n", + xtal_temp_convert, xtal_temp_raw); +} + +static int ab8540_gpadc_xtal_temp_open(struct inode *inode, struct file *file) +{ + return single_open(file, ab8540_gpadc_xtal_temp_print, + inode->i_private); +} + +static const struct file_operations ab8540_gpadc_xtal_temp_fops = { + .open = ab8540_gpadc_xtal_temp_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + +static int ab8540_gpadc_vbat_true_meas_print(struct seq_file *s, void *p) +{ + int vbat_true_meas_raw; + int vbat_true_meas_convert; + struct ab8500_gpadc *gpadc; + + gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); + vbat_true_meas_raw = ab8500_gpadc_read_raw(gpadc, VBAT_TRUE_MEAS, + avg_sample, trig_edge, trig_timer, conv_type); + vbat_true_meas_convert = ab8500_gpadc_ad_to_voltage(gpadc, VBAT_TRUE_MEAS, + vbat_true_meas_raw); + + return seq_printf(s, "%d,0x%X\n", + vbat_true_meas_convert, vbat_true_meas_raw); +} + +static int ab8540_gpadc_vbat_true_meas_open(struct inode *inode, + struct file *file) +{ + return single_open(file, ab8540_gpadc_vbat_true_meas_print, + inode->i_private); +} + +static const struct file_operations ab8540_gpadc_vbat_true_meas_fops = { + .open = ab8540_gpadc_vbat_true_meas_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + +static int ab8540_gpadc_bat_ctrl_and_ibat_print(struct seq_file *s, void *p) +{ + int bat_ctrl_raw; + int bat_ctrl_convert; + int ibat_raw; + int ibat_convert; + struct ab8500_gpadc *gpadc; + + gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); + bat_ctrl_raw = ab8500_gpadc_double_read_raw(gpadc, BAT_CTRL_AND_IBAT, + avg_sample, trig_edge, trig_timer, conv_type, &ibat_raw); + + bat_ctrl_convert = ab8500_gpadc_ad_to_voltage(gpadc, BAT_CTRL, + bat_ctrl_raw); + ibat_convert = ab8500_gpadc_ad_to_voltage(gpadc, IBAT_VIRTUAL_CHANNEL, + ibat_raw); + + return seq_printf(s, "%d,0x%X\n" "%d,0x%X\n", + bat_ctrl_convert, bat_ctrl_raw, + ibat_convert, ibat_raw); +} + +static int ab8540_gpadc_bat_ctrl_and_ibat_open(struct inode *inode, + struct file *file) +{ + return single_open(file, ab8540_gpadc_bat_ctrl_and_ibat_print, + inode->i_private); +} + +static const struct file_operations ab8540_gpadc_bat_ctrl_and_ibat_fops = { + .open = ab8540_gpadc_bat_ctrl_and_ibat_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + +static int ab8540_gpadc_vbat_meas_and_ibat_print(struct seq_file *s, void *p) +{ + int vbat_meas_raw; + int vbat_meas_convert; + int ibat_raw; + int ibat_convert; + struct ab8500_gpadc *gpadc; + + gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); + vbat_meas_raw = ab8500_gpadc_double_read_raw(gpadc, VBAT_MEAS_AND_IBAT, + avg_sample, trig_edge, trig_timer, conv_type, &ibat_raw); + vbat_meas_convert = ab8500_gpadc_ad_to_voltage(gpadc, MAIN_BAT_V, + vbat_meas_raw); + ibat_convert = ab8500_gpadc_ad_to_voltage(gpadc, IBAT_VIRTUAL_CHANNEL, + ibat_raw); + + return seq_printf(s, "%d,0x%X\n" "%d,0x%X\n", + vbat_meas_convert, vbat_meas_raw, + ibat_convert, ibat_raw); +} + +static int ab8540_gpadc_vbat_meas_and_ibat_open(struct inode *inode, + struct file *file) +{ + return single_open(file, ab8540_gpadc_vbat_meas_and_ibat_print, + inode->i_private); +} + +static const struct file_operations ab8540_gpadc_vbat_meas_and_ibat_fops = { + .open = ab8540_gpadc_vbat_meas_and_ibat_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + +static int ab8540_gpadc_vbat_true_meas_and_ibat_print(struct seq_file *s, void *p) +{ + int vbat_true_meas_raw; + int vbat_true_meas_convert; + int ibat_raw; + int ibat_convert; + struct ab8500_gpadc *gpadc; + + gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); + vbat_true_meas_raw = ab8500_gpadc_double_read_raw(gpadc, + VBAT_TRUE_MEAS_AND_IBAT, avg_sample, trig_edge, + trig_timer, conv_type, &ibat_raw); + vbat_true_meas_convert = ab8500_gpadc_ad_to_voltage(gpadc, + VBAT_TRUE_MEAS, vbat_true_meas_raw); + ibat_convert = ab8500_gpadc_ad_to_voltage(gpadc, IBAT_VIRTUAL_CHANNEL, + ibat_raw); + + return seq_printf(s, "%d,0x%X\n" "%d,0x%X\n", + vbat_true_meas_convert, vbat_true_meas_raw, + ibat_convert, ibat_raw); +} + +static int ab8540_gpadc_vbat_true_meas_and_ibat_open(struct inode *inode, + struct file *file) +{ + return single_open(file, ab8540_gpadc_vbat_true_meas_and_ibat_print, + inode->i_private); +} + +static const struct file_operations ab8540_gpadc_vbat_true_meas_and_ibat_fops = { + .open = ab8540_gpadc_vbat_true_meas_and_ibat_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + +static int ab8540_gpadc_bat_temp_and_ibat_print(struct seq_file *s, void *p) +{ + int bat_temp_raw; + int bat_temp_convert; + int ibat_raw; + int ibat_convert; + struct ab8500_gpadc *gpadc; + + gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); + bat_temp_raw = ab8500_gpadc_double_read_raw(gpadc, BAT_TEMP_AND_IBAT, + avg_sample, trig_edge, trig_timer, conv_type, &ibat_raw); + bat_temp_convert = ab8500_gpadc_ad_to_voltage(gpadc, BTEMP_BALL, + bat_temp_raw); + ibat_convert = ab8500_gpadc_ad_to_voltage(gpadc, IBAT_VIRTUAL_CHANNEL, + ibat_raw); + + return seq_printf(s, "%d,0x%X\n" "%d,0x%X\n", + bat_temp_convert, bat_temp_raw, + ibat_convert, ibat_raw); +} + +static int ab8540_gpadc_bat_temp_and_ibat_open(struct inode *inode, + struct file *file) +{ + return single_open(file, ab8540_gpadc_bat_temp_and_ibat_print, + inode->i_private); +} + +static const struct file_operations ab8540_gpadc_bat_temp_and_ibat_fops = { + .open = ab8540_gpadc_bat_temp_and_ibat_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + +static int ab8540_gpadc_otp_cal_print(struct seq_file *s, void *p) +{ + struct ab8500_gpadc *gpadc; + u16 vmain_l, vmain_h, btemp_l, btemp_h; + u16 vbat_l, vbat_h, ibat_l, ibat_h; + + gpadc = ab8500_gpadc_get("ab8500-gpadc.0"); + ab8540_gpadc_get_otp(gpadc, &vmain_l, &vmain_h, &btemp_l, &btemp_h, + &vbat_l, &vbat_h, &ibat_l, &ibat_h); + return seq_printf(s, "VMAIN_L:0x%X\n" + "VMAIN_H:0x%X\n" + "BTEMP_L:0x%X\n" + "BTEMP_H:0x%X\n" + "VBAT_L:0x%X\n" + "VBAT_H:0x%X\n" + "IBAT_L:0x%X\n" + "IBAT_H:0x%X\n" + , + vmain_l, + vmain_h, + btemp_l, + btemp_h, + vbat_l, + vbat_h, + ibat_l, + ibat_h); +} + +static int ab8540_gpadc_otp_cal_open(struct inode *inode, struct file *file) +{ + return single_open(file, ab8540_gpadc_otp_cal_print, inode->i_private); +} + +static const struct file_operations ab8540_gpadc_otp_calib_fops = { + .open = ab8540_gpadc_otp_cal_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + static int ab8500_gpadc_avg_sample_print(struct seq_file *s, void *p) { return seq_printf(s, "%d\n", avg_sample); @@ -2386,7 +2634,43 @@ static int ab8500_debug_probe(struct platform_device *plf) ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_die_temp_fops); if (!file) goto err; - + if (is_ab8540(ab8500)) { + file = debugfs_create_file("xtal_temp", (S_IRUGO | S_IWUGO), + ab8500_gpadc_dir, &plf->dev, &ab8540_gpadc_xtal_temp_fops); + if (!file) + goto err; + file = debugfs_create_file("vbattruemeas", (S_IRUGO | S_IWUGO), + ab8500_gpadc_dir, &plf->dev, + &ab8540_gpadc_vbat_true_meas_fops); + if (!file) + goto err; + file = debugfs_create_file("batctrl_and_ibat", + (S_IRUGO | S_IWUGO), ab8500_gpadc_dir, + &plf->dev, &ab8540_gpadc_bat_ctrl_and_ibat_fops); + if (!file) + goto err; + file = debugfs_create_file("vbatmeas_and_ibat", + (S_IRUGO | S_IWUGO), ab8500_gpadc_dir, + &plf->dev, + &ab8540_gpadc_vbat_meas_and_ibat_fops); + if (!file) + goto err; + file = debugfs_create_file("vbattruemeas_and_ibat", + (S_IRUGO | S_IWUGO), ab8500_gpadc_dir, + &plf->dev, + &ab8540_gpadc_vbat_true_meas_and_ibat_fops); + if (!file) + goto err; + file = debugfs_create_file("battemp_and_ibat", + (S_IRUGO | S_IWUGO), ab8500_gpadc_dir, + &plf->dev, &ab8540_gpadc_bat_temp_and_ibat_fops); + if (!file) + goto err; + file = debugfs_create_file("otp_calib", (S_IRUGO | S_IWUGO), + ab8500_gpadc_dir, &plf->dev, &ab8540_gpadc_otp_calib_fops); + if (!file) + goto err; + } file = debugfs_create_file("avg_sample", (S_IRUGO | S_IWUGO), ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_avg_sample_fops); if (!file) diff --git a/drivers/mfd/ab8500-gpadc.c b/drivers/mfd/ab8500-gpadc.c index c985b90577f6..e3535c74d5fe 100644 --- a/drivers/mfd/ab8500-gpadc.c +++ b/drivers/mfd/ab8500-gpadc.c @@ -135,6 +135,8 @@ enum cal_channels { struct adc_cal_data { s64 gain; s64 offset; + u16 otp_calib_hi; + u16 otp_calib_lo; }; /** @@ -829,6 +831,12 @@ static void ab8500_gpadc_read_calibration_data(struct ab8500_gpadc *gpadc) vmain_high = (((gpadc_cal[1] & 0xFF) << 2) | ((gpadc_cal[2] & 0xC0) >> 6)); vmain_low = ((gpadc_cal[2] & 0x3E) >> 1); + + gpadc->cal_data[ADC_INPUT_VMAIN].otp_calib_hi = + (u16)vmain_high; + gpadc->cal_data[ADC_INPUT_VMAIN].otp_calib_lo = + (u16)vmain_low; + gpadc->cal_data[ADC_INPUT_VMAIN].gain = CALIB_SCALE * (19500 - 315) / (vmain_high - vmain_low); gpadc->cal_data[ADC_INPUT_VMAIN].offset = CALIB_SCALE * @@ -856,6 +864,11 @@ static void ab8500_gpadc_read_calibration_data(struct ab8500_gpadc *gpadc) ibat_low = (((gpadc_otp4[1] & 0x01) << 5) | ((gpadc_otp4[2] & 0xF8) >> 3)); + gpadc->cal_data[ADC_INPUT_IBAT].otp_calib_hi = + (u16)ibat_high; + gpadc->cal_data[ADC_INPUT_IBAT].otp_calib_lo = + (u16)ibat_low; + V_gain = ((IBAT_VDROP_H - IBAT_VDROP_L) << CALIB_SHIFT_IBAT) / (ibat_high - ibat_low); @@ -892,6 +905,11 @@ static void ab8500_gpadc_read_calibration_data(struct ab8500_gpadc *gpadc) ((gpadc_cal[2] & 0xC0) >> 6)); vmain_low = ((gpadc_cal[2] & 0x3E) >> 1); + gpadc->cal_data[ADC_INPUT_VMAIN].otp_calib_hi = + (u16)vmain_high; + gpadc->cal_data[ADC_INPUT_VMAIN].otp_calib_lo = + (u16)vmain_low; + gpadc->cal_data[ADC_INPUT_VMAIN].gain = CALIB_SCALE * (19500 - 315) / (vmain_high - vmain_low); @@ -902,12 +920,16 @@ static void ab8500_gpadc_read_calibration_data(struct ab8500_gpadc *gpadc) gpadc->cal_data[ADC_INPUT_VMAIN].gain = 0; } } + /* Calculate gain and offset for BTEMP if all reads succeeded */ if (!(ret[2] < 0 || ret[3] < 0 || ret[4] < 0)) { btemp_high = (((gpadc_cal[2] & 0x01) << 9) | (gpadc_cal[3] << 1) | ((gpadc_cal[4] & 0x80) >> 7)); btemp_low = ((gpadc_cal[4] & 0x7C) >> 2); + gpadc->cal_data[ADC_INPUT_BTEMP].otp_calib_hi = (u16)btemp_high; + gpadc->cal_data[ADC_INPUT_BTEMP].otp_calib_lo = (u16)btemp_low; + gpadc->cal_data[ADC_INPUT_BTEMP].gain = CALIB_SCALE * (1300 - 21) / (btemp_high - btemp_low); gpadc->cal_data[ADC_INPUT_BTEMP].offset = CALIB_SCALE * 1300 - @@ -922,6 +944,9 @@ static void ab8500_gpadc_read_calibration_data(struct ab8500_gpadc *gpadc) vbat_high = (((gpadc_cal[4] & 0x03) << 8) | gpadc_cal[5]); vbat_low = ((gpadc_cal[6] & 0xFC) >> 2); + gpadc->cal_data[ADC_INPUT_VBAT].otp_calib_hi = (u16)vbat_high; + gpadc->cal_data[ADC_INPUT_VBAT].otp_calib_lo = (u16)vbat_low; + gpadc->cal_data[ADC_INPUT_VBAT].gain = CALIB_SCALE * (4700 - 2380) / (vbat_high - vbat_low); gpadc->cal_data[ADC_INPUT_VBAT].offset = CALIB_SCALE * 4700 - @@ -1131,6 +1156,25 @@ static void __exit ab8500_gpadc_exit(void) platform_driver_unregister(&ab8500_gpadc_driver); } +/** + * ab8540_gpadc_get_otp() - returns OTP values + * + */ +void ab8540_gpadc_get_otp(struct ab8500_gpadc *gpadc, + u16 *vmain_l, u16 *vmain_h, u16 *btemp_l, u16 *btemp_h, + u16 *vbat_l, u16 *vbat_h, u16 *ibat_l, u16 *ibat_h) +{ + *vmain_l = gpadc->cal_data[ADC_INPUT_VMAIN].otp_calib_lo; + *vmain_h = gpadc->cal_data[ADC_INPUT_VMAIN].otp_calib_hi; + *btemp_l = gpadc->cal_data[ADC_INPUT_BTEMP].otp_calib_lo; + *btemp_h = gpadc->cal_data[ADC_INPUT_BTEMP].otp_calib_hi; + *vbat_l = gpadc->cal_data[ADC_INPUT_VBAT].otp_calib_lo; + *vbat_h = gpadc->cal_data[ADC_INPUT_VBAT].otp_calib_hi; + *ibat_l = gpadc->cal_data[ADC_INPUT_IBAT].otp_calib_lo; + *ibat_h = gpadc->cal_data[ADC_INPUT_IBAT].otp_calib_hi; + return ; +} + subsys_initcall_sync(ab8500_gpadc_init); module_exit(ab8500_gpadc_exit); diff --git a/include/linux/mfd/abx500/ab8500-gpadc.h b/include/linux/mfd/abx500/ab8500-gpadc.h index 4131437ace4b..49ded001049b 100644 --- a/include/linux/mfd/abx500/ab8500-gpadc.h +++ b/include/linux/mfd/abx500/ab8500-gpadc.h @@ -68,5 +68,8 @@ int ab8500_gpadc_double_read_raw(struct ab8500_gpadc *gpadc, u8 channel, int *ibat); int ab8500_gpadc_ad_to_voltage(struct ab8500_gpadc *gpadc, u8 channel, int ad_value); +void ab8540_gpadc_get_otp(struct ab8500_gpadc *gpadc, + u16 *vmain_l, u16 *vmain_h, u16 *btemp_l, u16 *btemp_h, + u16 *vbat_l, u16 *vbat_h, u16 *ibat_l, u16 *ibat_h); #endif /* _AB8500_GPADC_H */ -- GitLab