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authorLinus Torvalds <torvalds@linux-foundation.org>2021-11-08 12:07:52 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2021-11-08 12:07:52 -0800
commit3a9b0a46e1708b6b3c298f2cf22923cc5a2ca63f (patch)
tree144677dc0c9012808297820e54eee9dd81b46129 /drivers/iio
parentd20f7a09e5eeeeef5db679adc9a490fecb6a4c87 (diff)
parent5dc6dafe62099ade0e7232ce9db4013b7673d860 (diff)
downloadlinux-3a9b0a46e1708b6b3c298f2cf22923cc5a2ca63f.tar.bz2
Merge tag 'mfd-next-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones: "Removed Drivers: - Remove support for TI TPS80031/TPS80032 PMICs New Device Support: - Add support for Magnetic Reader to TI AM335x - Add support for DA9063_EA to Dialog DA9063 - Add support for SC2730 PMIC to Spreadtrum SC27xx - Add support for MacBookPro16,2 ICL-N UART Intel LPSS PCI - Add support for lots of new PMICS in QCom SPMI PMIC - Add support for ADC to Diolan DLN2 New Functionality: - Add support for Power Off to Rockchip RK817 Fix-ups: - Simplify Regmap passing to child devices in hi6421-spmi-pmic - SPDX licensing updates in ti_am335x_tscadc - Improve error handling in ti_am335x_tscadc - Expedite clock search in ti_am335x_tscadc - Generic simplifications in ti_am335x_tscadc - Use generic macros/defines in ti_am335x_tscadc - Remove unused code in ti_am335x_tscadc, cros_ec_dev - Convert to GPIOD in wcd934x - Add namespacing in ti_am335x_tscadc - Restrict compilation to relevant arches in intel_pmt - Provide better description/documentation in exynos_lpass - Add SPI device ID table in altera-a10sr, motorola-cpcap, sprd-sc27xx-spi - Change IRQ handling in qcom-pm8xxx - Split out I2C and SPI code in arizona - Explicitly include used headers in altera-a10sr - Convert sysfs show() function to in sysfs_emit - Standardise *_exit() and *_remove() return values in mc13xxx, stmpe, tps65912 - Trivial (style/spelling/whitespace) fixups in ti_am335x_tscadc, qcom-spmi-pmic, max77686-private - Device Tree fix-ups in ti,am3359-tscadc, samsung,s2mps11, samsung,s2mpa01, samsung,s5m8767, brcm,misc, brcm,cru, syscon, qcom,tcsr, xylon,logicvc, max77686, x-powers,ac100, x-powers,axp152, x-powers,axp209-gpio, syscon, qcom,spmi-pmic Bug Fixes: - Balance refcounting (get/put) in ti_am335x_tscadc, mfd-core - Fix IRQ trigger type in sec-irq, max77693, max14577 - Repair off-by-one in altera-sysmgr - Add explicit 'select MFD_CORE' to MFD_SIMPLE_MFD_I2C" * tag 'mfd-next-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (95 commits) mfd: simple-mfd-i2c: Select MFD_CORE to fix build error mfd: tps80031: Remove driver mfd: max77686: Correct tab-based alignment of register addresses mfd: wcd934x: Replace legacy gpio interface for gpiod dt-bindings: mfd: qcom: pm8xxx: Add pm8018 compatible mfd: dln2: Add cell for initializing DLN2 ADC mfd: qcom-spmi-pmic: Add missing PMICs supported by socinfo mfd: qcom-spmi-pmic: Document ten more PMICs in the binding mfd: qcom-spmi-pmic: Sort compatibles in the driver mfd: qcom-spmi-pmic: Sort the compatibles in the binding mfd: janz-cmoio: Replace snprintf in show functions with sysfs_emit mfd: altera-a10sr: Include linux/module.h mfd: tps65912: Make tps65912_device_exit() return void mfd: stmpe: Make stmpe_remove() return void mfd: mc13xxx: Make mc13xxx_common_exit() return void dt-bindings: mfd: syscon: Add samsung,exynosautov9-sysreg compatible mfd: altera-sysmgr: Fix a mistake caused by resource_size conversion dt-bindings: gpio: Convert X-Powers AXP209 GPIO binding to a schema dt-bindings: mfd: syscon: Add rk3368 QoS register compatible mfd: arizona: Split of_match table into I2C and SPI versions ...
Diffstat (limited to 'drivers/iio')
-rw-r--r--drivers/iio/adc/ti_am335x_adc.c220
1 files changed, 130 insertions, 90 deletions
diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c
index 855cc2d64ac8..dbdc1ef48566 100644
--- a/drivers/iio/adc/ti_am335x_adc.c
+++ b/drivers/iio/adc/ti_am335x_adc.c
@@ -1,16 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* TI ADC MFD driver
*
* Copyright (C) 2012 Texas Instruments Incorporated - https://www.ti.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 version 2.
- *
- * This program is distributed "as is" WITHOUT ANY WARRANTY of any
- * kind, whether express or implied; without even the implied warranty
- * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
*/
#include <linux/kernel.h>
@@ -25,6 +17,7 @@
#include <linux/of_device.h>
#include <linux/iio/machine.h>
#include <linux/iio/driver.h>
+#include <linux/iopoll.h>
#include <linux/mfd/ti_am335x_tscadc.h>
#include <linux/iio/buffer.h>
@@ -65,7 +58,7 @@ static unsigned int tiadc_readl(struct tiadc_device *adc, unsigned int reg)
}
static void tiadc_writel(struct tiadc_device *adc, unsigned int reg,
- unsigned int val)
+ unsigned int val)
{
writel(val, adc->mfd_tscadc->tscadc_base + reg);
}
@@ -80,7 +73,7 @@ static u32 get_adc_step_mask(struct tiadc_device *adc_dev)
}
static u32 get_adc_chan_step_mask(struct tiadc_device *adc_dev,
- struct iio_chan_spec const *chan)
+ struct iio_chan_spec const *chan)
{
int i;
@@ -102,10 +95,18 @@ static u32 get_adc_step_bit(struct tiadc_device *adc_dev, int chan)
return 1 << adc_dev->channel_step[chan];
}
+static int tiadc_wait_idle(struct tiadc_device *adc_dev)
+{
+ u32 val;
+
+ return readl_poll_timeout(adc_dev->mfd_tscadc->tscadc_base + REG_ADCFSM,
+ val, !(val & SEQ_STATUS), 10,
+ IDLE_TIMEOUT_MS * 1000 * adc_dev->channels);
+}
+
static void tiadc_step_config(struct iio_dev *indio_dev)
{
struct tiadc_device *adc_dev = iio_priv(indio_dev);
- struct device *dev = adc_dev->mfd_tscadc->dev;
unsigned int stepconfig;
int i, steps = 0;
@@ -118,23 +119,14 @@ static void tiadc_step_config(struct iio_dev *indio_dev)
* Channel would represent which analog input
* needs to be given to ADC to digitalize data.
*/
-
-
for (i = 0; i < adc_dev->channels; i++) {
int chan;
chan = adc_dev->channel_line[i];
- if (adc_dev->step_avg[i] > STEPCONFIG_AVG_16) {
- dev_warn(dev, "chan %d step_avg truncating to %d\n",
- chan, STEPCONFIG_AVG_16);
- adc_dev->step_avg[i] = STEPCONFIG_AVG_16;
- }
-
if (adc_dev->step_avg[i])
- stepconfig =
- STEPCONFIG_AVG(ffs(adc_dev->step_avg[i]) - 1) |
- STEPCONFIG_FIFO1;
+ stepconfig = STEPCONFIG_AVG(ffs(adc_dev->step_avg[i]) - 1) |
+ STEPCONFIG_FIFO1;
else
stepconfig = STEPCONFIG_FIFO1;
@@ -142,26 +134,13 @@ static void tiadc_step_config(struct iio_dev *indio_dev)
stepconfig |= STEPCONFIG_MODE_SWCNT;
tiadc_writel(adc_dev, REG_STEPCONFIG(steps),
- stepconfig | STEPCONFIG_INP(chan) |
- STEPCONFIG_INM_ADCREFM |
- STEPCONFIG_RFP_VREFP |
- STEPCONFIG_RFM_VREFN);
-
- if (adc_dev->open_delay[i] > STEPDELAY_OPEN_MASK) {
- dev_warn(dev, "chan %d open delay truncating to 0x3FFFF\n",
- chan);
- adc_dev->open_delay[i] = STEPDELAY_OPEN_MASK;
- }
-
- if (adc_dev->sample_delay[i] > 0xFF) {
- dev_warn(dev, "chan %d sample delay truncating to 0xFF\n",
- chan);
- adc_dev->sample_delay[i] = 0xFF;
- }
+ stepconfig | STEPCONFIG_INP(chan) |
+ STEPCONFIG_INM_ADCREFM | STEPCONFIG_RFP_VREFP |
+ STEPCONFIG_RFM_VREFN);
tiadc_writel(adc_dev, REG_STEPDELAY(steps),
- STEPDELAY_OPEN(adc_dev->open_delay[i]) |
- STEPDELAY_SAMPLE(adc_dev->sample_delay[i]));
+ STEPDELAY_OPEN(adc_dev->open_delay[i]) |
+ STEPDELAY_SAMPLE(adc_dev->sample_delay[i]));
adc_dev->channel_step[i] = steps;
steps++;
@@ -184,12 +163,14 @@ static irqreturn_t tiadc_irq_h(int irq, void *private)
if (status & IRQENB_FIFO1OVRRUN) {
/* FIFO Overrun. Clear flag. Disable/Enable ADC to recover */
config = tiadc_readl(adc_dev, REG_CTRL);
- config &= ~(CNTRLREG_TSCSSENB);
+ config &= ~(CNTRLREG_SSENB);
tiadc_writel(adc_dev, REG_CTRL, config);
- tiadc_writel(adc_dev, REG_IRQSTATUS, IRQENB_FIFO1OVRRUN
- | IRQENB_FIFO1UNDRFLW | IRQENB_FIFO1THRES);
+ tiadc_writel(adc_dev, REG_IRQSTATUS,
+ IRQENB_FIFO1OVRRUN | IRQENB_FIFO1UNDRFLW |
+ IRQENB_FIFO1THRES);
- /* wait for idle state.
+ /*
+ * Wait for the idle state.
* ADC needs to finish the current conversion
* before disabling the module
*/
@@ -197,7 +178,7 @@ static irqreturn_t tiadc_irq_h(int irq, void *private)
adc_fsm = tiadc_readl(adc_dev, REG_ADCFSM);
} while (adc_fsm != 0x10 && count++ < 100);
- tiadc_writel(adc_dev, REG_CTRL, (config | CNTRLREG_TSCSSENB));
+ tiadc_writel(adc_dev, REG_CTRL, (config | CNTRLREG_SSENB));
return IRQ_HANDLED;
} else if (status & IRQENB_FIFO1THRES) {
/* Disable irq and wake worker thread */
@@ -217,11 +198,11 @@ static irqreturn_t tiadc_worker_h(int irq, void *private)
fifo1count = tiadc_readl(adc_dev, REG_FIFO1CNT);
for (k = 0; k < fifo1count; k = k + i) {
- for (i = 0; i < (indio_dev->scan_bytes)/2; i++) {
+ for (i = 0; i < indio_dev->scan_bytes / 2; i++) {
read = tiadc_readl(adc_dev, REG_FIFO1);
data[i] = read & FIFOREAD_DATA_MASK;
}
- iio_push_to_buffers(indio_dev, (u8 *) data);
+ iio_push_to_buffers(indio_dev, (u8 *)data);
}
tiadc_writel(adc_dev, REG_IRQSTATUS, IRQENB_FIFO1THRES);
@@ -254,6 +235,7 @@ static int tiadc_start_dma(struct iio_dev *indio_dev)
struct dma_async_tx_descriptor *desc;
dma->current_period = 0; /* We start to fill period 0 */
+
/*
* Make the fifo thresh as the multiple of total number of
* channels enabled, so make sure that cyclic DMA period
@@ -263,9 +245,10 @@ static int tiadc_start_dma(struct iio_dev *indio_dev)
*/
dma->fifo_thresh = rounddown(FIFO1_THRESHOLD + 1,
adc_dev->total_ch_enabled) - 1;
+
/* Make sure that period length is multiple of fifo thresh level */
dma->period_size = rounddown(DMA_BUFFER_SIZE / 2,
- (dma->fifo_thresh + 1) * sizeof(u16));
+ (dma->fifo_thresh + 1) * sizeof(u16));
dma->conf.src_maxburst = dma->fifo_thresh + 1;
dmaengine_slave_config(dma->chan, &dma->conf);
@@ -295,10 +278,15 @@ static int tiadc_buffer_preenable(struct iio_dev *indio_dev)
{
struct tiadc_device *adc_dev = iio_priv(indio_dev);
int i, fifo1count;
+ int ret;
+
+ ret = tiadc_wait_idle(adc_dev);
+ if (ret)
+ return ret;
- tiadc_writel(adc_dev, REG_IRQCLR, (IRQENB_FIFO1THRES |
- IRQENB_FIFO1OVRRUN |
- IRQENB_FIFO1UNDRFLW));
+ tiadc_writel(adc_dev, REG_IRQCLR,
+ IRQENB_FIFO1THRES | IRQENB_FIFO1OVRRUN |
+ IRQENB_FIFO1UNDRFLW);
/* Flush FIFO. Needed in corner cases in simultaneous tsc/adc use */
fifo1count = tiadc_readl(adc_dev, REG_FIFO1CNT);
@@ -328,8 +316,9 @@ static int tiadc_buffer_postenable(struct iio_dev *indio_dev)
am335x_tsc_se_set_cache(adc_dev->mfd_tscadc, enb);
- tiadc_writel(adc_dev, REG_IRQSTATUS, IRQENB_FIFO1THRES
- | IRQENB_FIFO1OVRRUN | IRQENB_FIFO1UNDRFLW);
+ tiadc_writel(adc_dev, REG_IRQSTATUS,
+ IRQENB_FIFO1THRES | IRQENB_FIFO1OVRRUN |
+ IRQENB_FIFO1UNDRFLW);
irq_enable = IRQENB_FIFO1OVRRUN;
if (!dma->chan)
@@ -345,8 +334,9 @@ static int tiadc_buffer_predisable(struct iio_dev *indio_dev)
struct tiadc_dma *dma = &adc_dev->dma;
int fifo1count, i;
- tiadc_writel(adc_dev, REG_IRQCLR, (IRQENB_FIFO1THRES |
- IRQENB_FIFO1OVRRUN | IRQENB_FIFO1UNDRFLW));
+ tiadc_writel(adc_dev, REG_IRQCLR,
+ IRQENB_FIFO1THRES | IRQENB_FIFO1OVRRUN |
+ IRQENB_FIFO1UNDRFLW);
am335x_tsc_se_clr(adc_dev->mfd_tscadc, adc_dev->buffer_en_ch_steps);
adc_dev->buffer_en_ch_steps = 0;
adc_dev->total_ch_enabled = 0;
@@ -378,12 +368,11 @@ static const struct iio_buffer_setup_ops tiadc_buffer_setup_ops = {
};
static int tiadc_iio_buffered_hardware_setup(struct device *dev,
- struct iio_dev *indio_dev,
- irqreturn_t (*pollfunc_bh)(int irq, void *p),
- irqreturn_t (*pollfunc_th)(int irq, void *p),
- int irq,
- unsigned long flags,
- const struct iio_buffer_setup_ops *setup_ops)
+ struct iio_dev *indio_dev,
+ irqreturn_t (*pollfunc_bh)(int irq, void *p),
+ irqreturn_t (*pollfunc_th)(int irq, void *p),
+ int irq, unsigned long flags,
+ const struct iio_buffer_setup_ops *setup_ops)
{
int ret;
@@ -394,7 +383,7 @@ static int tiadc_iio_buffered_hardware_setup(struct device *dev,
return ret;
return devm_request_threaded_irq(dev, irq, pollfunc_th, pollfunc_bh,
- flags, indio_dev->name, indio_dev);
+ flags, indio_dev->name, indio_dev);
}
static const char * const chan_name_ain[] = {
@@ -419,16 +408,16 @@ static int tiadc_channel_init(struct device *dev, struct iio_dev *indio_dev,
indio_dev->num_channels = channels;
chan_array = devm_kcalloc(dev, channels, sizeof(*chan_array),
GFP_KERNEL);
- if (chan_array == NULL)
+ if (!chan_array)
return -ENOMEM;
chan = chan_array;
for (i = 0; i < channels; i++, chan++) {
-
chan->type = IIO_VOLTAGE;
chan->indexed = 1;
chan->channel = adc_dev->channel_line[i];
chan->info_mask_separate = BIT(IIO_CHAN_INFO_RAW);
+ chan->info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE);
chan->datasheet_name = chan_name_ain[chan->channel];
chan->scan_index = i;
chan->scan_type.sign = 'u';
@@ -442,16 +431,33 @@ static int tiadc_channel_init(struct device *dev, struct iio_dev *indio_dev,
}
static int tiadc_read_raw(struct iio_dev *indio_dev,
- struct iio_chan_spec const *chan,
- int *val, int *val2, long mask)
+ struct iio_chan_spec const *chan, int *val, int *val2,
+ long mask)
{
struct tiadc_device *adc_dev = iio_priv(indio_dev);
- int ret = IIO_VAL_INT;
int i, map_val;
unsigned int fifo1count, read, stepid;
bool found = false;
u32 step_en;
unsigned long timeout;
+ int ret;
+
+ switch (mask) {
+ case IIO_CHAN_INFO_RAW:
+ break;
+ case IIO_CHAN_INFO_SCALE:
+ switch (chan->type) {
+ case IIO_VOLTAGE:
+ *val = 1800;
+ *val2 = chan->scan_type.realbits;
+ return IIO_VAL_FRACTIONAL_LOG2;
+ default:
+ return -EINVAL;
+ }
+ break;
+ default:
+ return -EINVAL;
+ }
if (iio_buffer_enabled(indio_dev))
return -EBUSY;
@@ -461,15 +467,19 @@ static int tiadc_read_raw(struct iio_dev *indio_dev,
return -EINVAL;
mutex_lock(&adc_dev->fifo1_lock);
+
+ ret = tiadc_wait_idle(adc_dev);
+ if (ret)
+ goto err_unlock;
+
fifo1count = tiadc_readl(adc_dev, REG_FIFO1CNT);
while (fifo1count--)
tiadc_readl(adc_dev, REG_FIFO1);
am335x_tsc_se_set_once(adc_dev->mfd_tscadc, step_en);
- timeout = jiffies + msecs_to_jiffies
- (IDLE_TIMEOUT * adc_dev->channels);
/* Wait for Fifo threshold interrupt */
+ timeout = jiffies + msecs_to_jiffies(IDLE_TIMEOUT_MS * adc_dev->channels);
while (1) {
fifo1count = tiadc_readl(adc_dev, REG_FIFO1CNT);
if (fifo1count)
@@ -481,6 +491,7 @@ static int tiadc_read_raw(struct iio_dev *indio_dev,
goto err_unlock;
}
}
+
map_val = adc_dev->channel_step[chan->scan_index];
/*
@@ -498,17 +509,18 @@ static int tiadc_read_raw(struct iio_dev *indio_dev,
if (stepid == map_val) {
read = read & FIFOREAD_DATA_MASK;
found = true;
- *val = (u16) read;
+ *val = (u16)read;
}
}
+
am335x_tsc_se_adc_done(adc_dev->mfd_tscadc);
if (!found)
- ret = -EBUSY;
+ ret = -EBUSY;
err_unlock:
mutex_unlock(&adc_dev->fifo1_lock);
- return ret;
+ return ret ? ret : IIO_VAL_INT;
}
static const struct iio_info tiadc_info = {
@@ -545,6 +557,7 @@ static int tiadc_request_dma(struct platform_device *pdev,
goto err;
return 0;
+
err:
dma_release_channel(dma->chan);
return -ENOMEM;
@@ -558,6 +571,7 @@ static int tiadc_parse_dt(struct platform_device *pdev,
const __be32 *cur;
int channels = 0;
u32 val;
+ int i;
of_property_for_each_u32(node, "ti,adc-channels", prop, cur, val) {
adc_dev->channel_line[channels] = val;
@@ -570,6 +584,8 @@ static int tiadc_parse_dt(struct platform_device *pdev,
channels++;
}
+ adc_dev->channels = channels;
+
of_property_read_u32_array(node, "ti,chan-step-avg",
adc_dev->step_avg, channels);
of_property_read_u32_array(node, "ti,chan-step-opendelay",
@@ -577,7 +593,33 @@ static int tiadc_parse_dt(struct platform_device *pdev,
of_property_read_u32_array(node, "ti,chan-step-sampledelay",
adc_dev->sample_delay, channels);
- adc_dev->channels = channels;
+ for (i = 0; i < adc_dev->channels; i++) {
+ int chan;
+
+ chan = adc_dev->channel_line[i];
+
+ if (adc_dev->step_avg[i] > STEPCONFIG_AVG_16) {
+ dev_warn(&pdev->dev,
+ "chan %d: wrong step avg, truncated to %ld\n",
+ chan, STEPCONFIG_AVG_16);
+ adc_dev->step_avg[i] = STEPCONFIG_AVG_16;
+ }
+
+ if (adc_dev->open_delay[i] > STEPCONFIG_MAX_OPENDLY) {
+ dev_warn(&pdev->dev,
+ "chan %d: wrong open delay, truncated to 0x%lX\n",
+ chan, STEPCONFIG_MAX_OPENDLY);
+ adc_dev->open_delay[i] = STEPCONFIG_MAX_OPENDLY;
+ }
+
+ if (adc_dev->sample_delay[i] > STEPCONFIG_MAX_SAMPLE) {
+ dev_warn(&pdev->dev,
+ "chan %d: wrong sample delay, truncated to 0x%lX\n",
+ chan, STEPCONFIG_MAX_SAMPLE);
+ adc_dev->sample_delay[i] = STEPCONFIG_MAX_SAMPLE;
+ }
+ }
+
return 0;
}
@@ -594,7 +636,7 @@ static int tiadc_probe(struct platform_device *pdev)
}
indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(*adc_dev));
- if (indio_dev == NULL) {
+ if (!indio_dev) {
dev_err(&pdev->dev, "failed to allocate iio device\n");
return -ENOMEM;
}
@@ -616,18 +658,17 @@ static int tiadc_probe(struct platform_device *pdev)
return err;
err = tiadc_iio_buffered_hardware_setup(&pdev->dev, indio_dev,
- &tiadc_worker_h,
- &tiadc_irq_h,
- adc_dev->mfd_tscadc->irq,
- IRQF_SHARED,
- &tiadc_buffer_setup_ops);
-
+ &tiadc_worker_h,
+ &tiadc_irq_h,
+ adc_dev->mfd_tscadc->irq,
+ IRQF_SHARED,
+ &tiadc_buffer_setup_ops);
if (err)
- goto err_free_channels;
+ return err;
err = iio_device_register(indio_dev);
if (err)
- goto err_buffer_unregister;
+ return err;
platform_set_drvdata(pdev, indio_dev);
@@ -639,8 +680,7 @@ static int tiadc_probe(struct platform_device *pdev)
err_dma:
iio_device_unregister(indio_dev);
-err_buffer_unregister:
-err_free_channels:
+
return err;
}
@@ -671,9 +711,8 @@ static int __maybe_unused tiadc_suspend(struct device *dev)
unsigned int idle;
idle = tiadc_readl(adc_dev, REG_CTRL);
- idle &= ~(CNTRLREG_TSCSSENB);
- tiadc_writel(adc_dev, REG_CTRL, (idle |
- CNTRLREG_POWERDOWN));
+ idle &= ~(CNTRLREG_SSENB);
+ tiadc_writel(adc_dev, REG_CTRL, idle | CNTRLREG_POWERDOWN);
return 0;
}
@@ -686,12 +725,12 @@ static int __maybe_unused tiadc_resume(struct device *dev)
/* Make sure ADC is powered up */
restore = tiadc_readl(adc_dev, REG_CTRL);
- restore &= ~(CNTRLREG_POWERDOWN);
+ restore &= ~CNTRLREG_POWERDOWN;
tiadc_writel(adc_dev, REG_CTRL, restore);
tiadc_step_config(indio_dev);
am335x_tsc_se_set_cache(adc_dev->mfd_tscadc,
- adc_dev->buffer_en_ch_steps);
+ adc_dev->buffer_en_ch_steps);
return 0;
}
@@ -699,6 +738,7 @@ static SIMPLE_DEV_PM_OPS(tiadc_pm_ops, tiadc_suspend, tiadc_resume);
static const struct of_device_id ti_adc_dt_ids[] = {
{ .compatible = "ti,am3359-adc", },
+ { .compatible = "ti,am4372-adc", },
{ }
};
MODULE_DEVICE_TABLE(of, ti_adc_dt_ids);