Merge tag 'char-misc-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc and other driver subsystem updates from Greg KH:
 "Here is the big set of char/misc and a number of other driver
  subsystem updates for 6.9-rc1. Included in here are:

   - IIO driver updates, loads of new ones and evolution of existing ones

   - coresight driver updates

   - const cleanups for many driver subsystems

   - speakup driver additions

   - platform remove callback void cleanups

   - mei driver updates

   - mhi driver updates

   - cdx driver updates for MSI interrupt handling

   - nvmem driver updates

   - other smaller driver updates and cleanups, full details in the
    shortlog

  All of these have been in linux-next for a long time with no reported
  issue, other than a build warning for the speakup driver"

The build warning hits clang and is a gcc (and C23) extension, and is
fixed up in the merge.

Link: https://lore.kernel.org/all/20240321134831.GA2762840@dev-arch.thelio-3990X/

* tag 'char-misc-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (279 commits)
  binder: remove redundant variable page_addr
  uio_dmem_genirq: UIO_MEM_DMA_COHERENT conversion
  uio_pruss: UIO_MEM_DMA_COHERENT conversion
  cnic,bnx2,bnx2x: use UIO_MEM_DMA_COHERENT
  uio: introduce UIO_MEM_DMA_COHERENT type
  cdx: add MSI support for CDX bus
  pps: use cflags-y instead of EXTRA_CFLAGS
  speakup: Add /dev/synthu device
  speakup: Fix 8bit characters from direct synth
  parport: sunbpp: Convert to platform remove callback returning void
  parport: amiga: Convert to platform remove callback returning void
  char: xillybus: Convert to platform remove callback returning void
  vmw_balloon: change maintainership
  MAINTAINERS: change the maintainer for hpilo driver
  char: xilinx_hwicap: Fix NULL vs IS_ERR() bug
  hpet: remove hpets::hp_clocksource
  platform: goldfish: move the separate 'default' propery for CONFIG_GOLDFISH
  char: xilinx_hwicap: drop casting to void in dev_set_drvdata
  greybus: move is_gb_* functions out of greybus.h
  greybus: Remove usage of the deprecated ida_simple_xx() API
  ...

1 files changed, 48 insertions, 1 deletions

diff --git a/drivers/iio/pressure/hsc030pa.c b/drivers/iio/pressure/hsc030pa.c
index d6a51f0c335f..1682b90d4557 100644
--- a/drivers/iio/pressure/hsc030pa.c
+++ b/drivers/iio/pressure/hsc030pa.c
@@ -22,8 +22,11 @@
 #include <linux/types.h>
 #include <linux/units.h>
 
+#include <linux/iio/buffer.h>
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
+#include <linux/iio/trigger_consumer.h>
+#include <linux/iio/triggered_buffer.h>
 
 #include <asm/unaligned.h>
 
@@ -297,6 +300,29 @@ static int hsc_get_measurement(struct hsc_data *data)
 	return 0;
 }
 
+static irqreturn_t hsc_trigger_handler(int irq, void *private)
+{
+	struct iio_poll_func *pf = private;
+	struct iio_dev *indio_dev = pf->indio_dev;
+	struct hsc_data *data = iio_priv(indio_dev);
+	int ret;
+
+	ret = hsc_get_measurement(data);
+	if (ret)
+		goto error;
+
+	memcpy(&data->scan.chan[0], &data->buffer[0], 2);
+	memcpy(&data->scan.chan[1], &data->buffer[2], 2);
+
+	iio_push_to_buffers_with_timestamp(indio_dev, &data->scan,
+					   iio_get_time_ns(indio_dev));
+
+error:
+	iio_trigger_notify_done(indio_dev->trig);
+
+	return IRQ_HANDLED;
+}
+
 /*
  * IIO ABI expects
  * value = (conv + offset) * scale
@@ -382,13 +408,29 @@ static const struct iio_chan_spec hsc_channels[] = {
 		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
 				      BIT(IIO_CHAN_INFO_SCALE) |
 				      BIT(IIO_CHAN_INFO_OFFSET),
+		.scan_index = 0,
+		.scan_type = {
+			.sign = 'u',
+			.realbits = 14,
+			.storagebits = 16,
+			.endianness = IIO_BE,
+		},
 	},
 	{
 		.type = IIO_TEMP,
 		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
 				      BIT(IIO_CHAN_INFO_SCALE) |
 				      BIT(IIO_CHAN_INFO_OFFSET),
+		.scan_index = 1,
+		.scan_type = {
+			.sign = 'u',
+			.realbits = 11,
+			.storagebits = 16,
+			.shift = 5,
+			.endianness = IIO_BE,
+		},
 	},
+	IIO_CHAN_SOFT_TIMESTAMP(2),
 };
 
 static const struct iio_info hsc_info = {
@@ -406,7 +448,7 @@ int hsc_common_probe(struct device *dev, hsc_recv_fn recv)
 	struct hsc_data *hsc;
 	struct iio_dev *indio_dev;
 	const char *triplet;
-	u64 tmp;
+	s64 tmp;
 	int ret;
 
 	indio_dev = devm_iio_device_alloc(dev, sizeof(*hsc));
@@ -485,6 +527,11 @@ int hsc_common_probe(struct device *dev, hsc_recv_fn recv)
 	indio_dev->channels = hsc->chip->channels;
 	indio_dev->num_channels = hsc->chip->num_channels;
 
+	ret = devm_iio_triggered_buffer_setup(dev, indio_dev, NULL,
+					      hsc_trigger_handler, NULL);
+	if (ret)
+		return ret;
+
 	return devm_iio_device_register(dev, indio_dev);
 }
 EXPORT_SYMBOL_NS(hsc_common_probe, IIO_HONEYWELL_HSC030PA);