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authorMichel JAOUEN <michel.jaouen@stericsson.com>2012-02-09 12:06:47 +0100
committerLee Jones <lee.jones@linaro.org>2013-02-04 08:31:49 +0000
commit20bf428329400d3c71be3bdaaa265a485902f90b (patch)
tree5b912fe947285c93a176296ac7370f6f0647e811 /drivers/mfd
parentddba25f17dc7015f44fbcdf79ce72f69996f2be3 (diff)
downloadop-kernel-dev-20bf428329400d3c71be3bdaaa265a485902f90b.zip
op-kernel-dev-20bf428329400d3c71be3bdaaa265a485902f90b.tar.gz
mfd ab8500-gpadc: Introduce new AB version detection
Add support for AB8505 and AB9540 Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Maxime Coquelin <maxime.coquelin@stericsson.com> Signed-off-by: Bengt Jonsson <bengt.g.jonsson@stericsson.com> Reviewed-by: Rabin VINCENT <rabin.vincent@stericsson.com>
Diffstat (limited to 'drivers/mfd')
-rw-r--r--drivers/mfd/ab8500-gpadc.c15
1 files changed, 4 insertions, 11 deletions
diff --git a/drivers/mfd/ab8500-gpadc.c b/drivers/mfd/ab8500-gpadc.c
index bc0daf3..61b176f 100644
--- a/drivers/mfd/ab8500-gpadc.c
+++ b/drivers/mfd/ab8500-gpadc.c
@@ -102,10 +102,10 @@ struct adc_cal_data {
/**
* struct ab8500_gpadc - AB8500 GPADC device information
- * @chip_id ABB chip id
* @dev: pointer to the struct device
* @node: a list of AB8500 GPADCs, hence prepared for
reentrance
+ * @parent: pointer to the struct ab8500
* @ab8500_gpadc_complete: pointer to the struct completion, to indicate
* the completion of gpadc conversion
* @ab8500_gpadc_lock: structure of type mutex
@@ -114,9 +114,9 @@ struct adc_cal_data {
* @cal_data array of ADC calibration data structs
*/
struct ab8500_gpadc {
- u8 chip_id;
struct device *dev;
struct list_head node;
+ struct ab8500 *parent;
struct completion ab8500_gpadc_complete;
struct mutex ab8500_gpadc_lock;
struct regulator *regu;
@@ -332,7 +332,7 @@ int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel)
EN_BUF | EN_ICHAR);
break;
case BTEMP_BALL:
- if (gpadc->chip_id >= AB8500_CUT3P0) {
+ if (!is_ab8500_2p0_or_earlier(gpadc->parent)) {
/* Turn on btemp pull-up on ABB 3.0 */
ret = abx500_mask_and_set_register_interruptible(
gpadc->dev,
@@ -591,6 +591,7 @@ static int ab8500_gpadc_probe(struct platform_device *pdev)
}
gpadc->dev = &pdev->dev;
+ gpadc->parent = dev_get_drvdata(pdev->dev.parent);
mutex_init(&gpadc->ab8500_gpadc_lock);
/* Initialize completion used to notify completion of conversion */
@@ -607,14 +608,6 @@ static int ab8500_gpadc_probe(struct platform_device *pdev)
goto fail;
}
- /* Get Chip ID of the ABB ASIC */
- ret = abx500_get_chip_id(gpadc->dev);
- if (ret < 0) {
- dev_err(gpadc->dev, "failed to get chip ID\n");
- goto fail_irq;
- }
- gpadc->chip_id = (u8) ret;
-
/* VTVout LDO used to power up ab8500-GPADC */
gpadc->regu = regulator_get(&pdev->dev, "vddadc");
if (IS_ERR(gpadc->regu)) {
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