linux-kernel - [PATCH 4.0 027/148] iio/axp288_adc: add missing channel info mask

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Message-Id: <20150603114206.526190882@linuxfoundation.org>
Date:	Wed,  3 Jun 2015 21:08:17 +0900
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Jacob Pan <jacob.jun.pan@...ux.intel.com>,
	Jonathan Cameron <jic23@...nel.org>
Subject: [PATCH 4.0 027/148] iio/axp288_adc: add missing channel info mask

4.0-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jacob Pan <jacob.jun.pan@...ux.intel.com>

commit d0716b0ea4ce11a13477163c14b26e180922ba51 upstream.

Commit 65de7654d39c70c2b ("iio: iio: Fix iio_channel_read return if
channel havn't info") added a check for valid info masks.

This patch adds missing channel info masks for all ADC channels.
Otherwise, iio_read_channel_raw() would return -EINVAL when called
by consumer drivers.

Note that the change of _processed to _raw actually fixes an ABI abuse
in the original driver where it was used to avoid some special handling
rather than because it was correct.

Signed-off-by: Jacob Pan <jacob.jun.pan@...ux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/iio/adc/axp288_adc.c |   12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

--- a/drivers/iio/adc/axp288_adc.c
+++ b/drivers/iio/adc/axp288_adc.c
@@ -53,39 +53,42 @@ static const struct iio_chan_spec const
 		.channel = 0,
 		.address = AXP288_TS_ADC_H,
 		.datasheet_name = "TS_PIN",
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
 	}, {
 		.indexed = 1,
 		.type = IIO_TEMP,
 		.channel = 1,
 		.address = AXP288_PMIC_ADC_H,
 		.datasheet_name = "PMIC_TEMP",
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
 	}, {
 		.indexed = 1,
 		.type = IIO_TEMP,
 		.channel = 2,
 		.address = AXP288_GP_ADC_H,
 		.datasheet_name = "GPADC",
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
 	}, {
 		.indexed = 1,
 		.type = IIO_CURRENT,
 		.channel = 3,
 		.address = AXP20X_BATT_CHRG_I_H,
 		.datasheet_name = "BATT_CHG_I",
-		.info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED),
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
 	}, {
 		.indexed = 1,
 		.type = IIO_CURRENT,
 		.channel = 4,
 		.address = AXP20X_BATT_DISCHRG_I_H,
 		.datasheet_name = "BATT_DISCHRG_I",
-		.info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED),
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
 	}, {
 		.indexed = 1,
 		.type = IIO_VOLTAGE,
 		.channel = 5,
 		.address = AXP20X_BATT_V_H,
 		.datasheet_name = "BATT_V",
-		.info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED),
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
 	},
 };
 
@@ -151,9 +154,6 @@ static int axp288_adc_read_raw(struct ii
 						chan->address))
 			dev_err(&indio_dev->dev, "TS pin restore\n");
 		break;
-	case IIO_CHAN_INFO_PROCESSED:
-		ret = axp288_adc_read_channel(val, chan->address, info->regmap);
-		break;
 	default:
 		ret = -EINVAL;
 	}


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