Merge tag 'staging-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging and IIO driver updates from Greg KH:
 "Here is the "big" set of staging and IIO driver patches for 5.12-rc1.

  Nothing really huge in here, the number of staging tree patches has
  gone down for a bit, maybe there's only so much churn to happen in
  here at the moment.

  The IIO changes are:

   - new drivers

   - new DT bindings

   - new iio driver features

  with full details in the shortlog.

  The staging driver patches are just a lot of tiny coding style
  cleanups, along with some semi-larger hikey driver cleanups as those
  are _almost_ good enough to get out of the staging tree, but will
  probably have to wait until 5.13 to have happen.

  All of these have been in linux-next with no reported issues"

* tag 'staging-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (189 commits)
  staging: hikey9xx: Fix alignment of function parameters
  staging: greybus: Fixed a misspelling in hid.c
  staging: wimax/i2400m: fix some byte order issues found by sparse
  staging: wimax: i2400m: fix some incorrect type warnings
  staging: greybus: minor code style fix
  staging:wlan-ng: use memdup_user instead of kmalloc/copy_from_user
  staging:r8188eu: use IEEE80211_FCTL_* kernel definitions
  staging: rtl8192e: remove multiple blank lines
  staging: greybus: Fixed alignment issue in hid.c
  staging: wfx: remove unused included header files
  staging: nvec: minor coding style fix
  staging: wimax: Fix some coding style problem
  staging: fbtft: add tearing signal detect
  staging: vt6656: Fixed issue with alignment in rf.c
  staging: qlge: Remove duplicate word in comment
  staging: rtl8723bs: remove obsolete commented out code
  staging: rtl8723bs: fix function comments to follow kernel-doc
  staging: wfx: avoid defining array of flexible struct
  staging: rtl8723bs: Replace one-element array with flexible-array member in struct ndis_80211_var_ie
  staging: Replace lkml.org links with lore
  ...

1 files changed, 14 insertions, 81 deletions

diff --git a/drivers/iio/adc/qcom-spmi-adc5.c b/drivers/iio/adc/qcom-spmi-adc5.c
index c10aa28be70a..87438d1e5c0b 100644
--- a/drivers/iio/adc/qcom-spmi-adc5.c
+++ b/drivers/iio/adc/qcom-spmi-adc5.c
@@ -7,6 +7,7 @@
 #include <linux/completion.h>
 #include <linux/delay.h>
 #include <linux/err.h>
+#include <linux/iio/adc/qcom-vadc-common.h>
 #include <linux/iio/iio.h>
 #include <linux/interrupt.h>
 #include <linux/kernel.h>
@@ -14,12 +15,12 @@
 #include <linux/math64.h>
 #include <linux/module.h>
 #include <linux/of.h>
+#include <linux/of_device.h>
 #include <linux/platform_device.h>
 #include <linux/regmap.h>
 #include <linux/slab.h>
 
 #include <dt-bindings/iio/qcom,spmi-vadc.h>
-#include "qcom-vadc-common.h"
 
 #define ADC5_USR_REVISION1			0x0
 #define ADC5_USR_STATUS1			0x8
@@ -154,18 +155,6 @@ struct adc5_chip {
 	const struct adc5_data	*data;
 };
 
-static const struct vadc_prescale_ratio adc5_prescale_ratios[] = {
-	{.num =  1, .den =  1},
-	{.num =  1, .den =  3},
-	{.num =  1, .den =  4},
-	{.num =  1, .den =  6},
-	{.num =  1, .den = 20},
-	{.num =  1, .den =  8},
-	{.num = 10, .den = 81},
-	{.num =  1, .den = 10},
-	{.num =  1, .den = 16}
-};
-
 static int adc5_read(struct adc5_chip *adc, u16 offset, u8 *data, int len)
 {
 	return regmap_bulk_read(adc->regmap, adc->base + offset, data, len);
@@ -181,55 +170,6 @@ static int adc5_masked_write(struct adc5_chip *adc, u16 offset, u8 mask, u8 val)
 	return regmap_update_bits(adc->regmap, adc->base + offset, mask, val);
 }
 
-static int adc5_prescaling_from_dt(u32 num, u32 den)
-{
-	unsigned int pre;
-
-	for (pre = 0; pre < ARRAY_SIZE(adc5_prescale_ratios); pre++)
-		if (adc5_prescale_ratios[pre].num == num &&
-		    adc5_prescale_ratios[pre].den == den)
-			break;
-
-	if (pre == ARRAY_SIZE(adc5_prescale_ratios))
-		return -EINVAL;
-
-	return pre;
-}
-
-static int adc5_hw_settle_time_from_dt(u32 value,
-					const unsigned int *hw_settle)
-{
-	unsigned int i;
-
-	for (i = 0; i < VADC_HW_SETTLE_SAMPLES_MAX; i++) {
-		if (value == hw_settle[i])
-			return i;
-	}
-
-	return -EINVAL;
-}
-
-static int adc5_avg_samples_from_dt(u32 value)
-{
-	if (!is_power_of_2(value) || value > ADC5_AVG_SAMPLES_MAX)
-		return -EINVAL;
-
-	return __ffs(value);
-}
-
-static int adc5_decimation_from_dt(u32 value,
-					const unsigned int *decimation)
-{
-	unsigned int i;
-
-	for (i = 0; i < ADC5_DECIMATION_SAMPLES_MAX; i++) {
-		if (value == decimation[i])
-			return i;
-	}
-
-	return -EINVAL;
-}
-
 static int adc5_read_voltage_data(struct adc5_chip *adc, u16 *data)
 {
 	int ret;
@@ -511,7 +451,7 @@ static int adc_read_raw_common(struct iio_dev *indio_dev,
 			return ret;
 
 		ret = qcom_adc5_hw_scale(prop->scale_fn_type,
-			&adc5_prescale_ratios[prop->prescale],
+			prop->prescale,
 			adc->data,
 			adc_code_volt, val);
 		if (ret)
@@ -717,7 +657,7 @@ static int adc5_get_dt_channel_data(struct adc5_chip *adc,
 
 	ret = of_property_read_u32(node, "qcom,decimation", &value);
 	if (!ret) {
-		ret = adc5_decimation_from_dt(value, data->decimation);
+		ret = qcom_adc5_decimation_from_dt(value, data->decimation);
 		if (ret < 0) {
 			dev_err(dev, "%02x invalid decimation %d\n",
 				chan, value);
@@ -730,7 +670,7 @@ static int adc5_get_dt_channel_data(struct adc5_chip *adc,
 
 	ret = of_property_read_u32_array(node, "qcom,pre-scaling", varr, 2);
 	if (!ret) {
-		ret = adc5_prescaling_from_dt(varr[0], varr[1]);
+		ret = qcom_adc5_prescaling_from_dt(varr[0], varr[1]);
 		if (ret < 0) {
 			dev_err(dev, "%02x invalid pre-scaling <%d %d>\n",
 				chan, varr[0], varr[1]);
@@ -759,11 +699,9 @@ static int adc5_get_dt_channel_data(struct adc5_chip *adc,
 		if ((dig_version[0] >= ADC5_HW_SETTLE_DIFF_MINOR &&
 			dig_version[1] >= ADC5_HW_SETTLE_DIFF_MAJOR) ||
 			adc->data->info == &adc7_info)
-			ret = adc5_hw_settle_time_from_dt(value,
-							data->hw_settle_2);
+			ret = qcom_adc5_hw_settle_time_from_dt(value, data->hw_settle_2);
 		else
-			ret = adc5_hw_settle_time_from_dt(value,
-							data->hw_settle_1);
+			ret = qcom_adc5_hw_settle_time_from_dt(value, data->hw_settle_1);
 
 		if (ret < 0) {
 			dev_err(dev, "%02x invalid hw-settle-time %d us\n",
@@ -777,7 +715,7 @@ static int adc5_get_dt_channel_data(struct adc5_chip *adc,
 
 	ret = of_property_read_u32(node, "qcom,avg-samples", &value);
 	if (!ret) {
-		ret = adc5_avg_samples_from_dt(value);
+		ret = qcom_adc5_avg_samples_from_dt(value);
 		if (ret < 0) {
 			dev_err(dev, "%02x invalid avg-samples %d\n",
 				chan, value);
@@ -870,8 +808,6 @@ static int adc5_get_dt_data(struct adc5_chip *adc, struct device_node *node)
 	struct adc5_channel_prop prop, *chan_props;
 	struct device_node *child;
 	unsigned int index = 0;
-	const struct of_device_id *id;
-	const struct adc5_data *data;
 	int ret;
 
 	adc->nchannels = of_get_available_child_count(node);
@@ -890,24 +826,21 @@ static int adc5_get_dt_data(struct adc5_chip *adc, struct device_node *node)
 
 	chan_props = adc->chan_props;
 	iio_chan = adc->iio_chans;
-	id = of_match_node(adc5_match_table, node);
-	if (id)
-		data = id->data;
-	else
-		data = &adc5_data_pmic;
-	adc->data = data;
+	adc->data = of_device_get_match_data(adc->dev);
+	if (!adc->data)
+		adc->data = &adc5_data_pmic;
 
 	for_each_available_child_of_node(node, child) {
-		ret = adc5_get_dt_channel_data(adc, &prop, child, data);
+		ret = adc5_get_dt_channel_data(adc, &prop, child, adc->data);
 		if (ret) {
 			of_node_put(child);
 			return ret;
 		}
 
 		prop.scale_fn_type =
-			data->adc_chans[prop.channel].scale_fn_type;
+			adc->data->adc_chans[prop.channel].scale_fn_type;
 		*chan_props = prop;
-		adc_chan = &data->adc_chans[prop.channel];
+		adc_chan = &adc->data->adc_chans[prop.channel];
 
 		iio_chan->channel = prop.channel;
 		iio_chan->datasheet_name = prop.datasheet_name;