patch "iio: proximity: isl29501: fix buffered read on big-endian systems" added to char-misc-linus

This is a note to let you know that I've just added the patch titled

iio: proximity: isl29501: fix buffered read on big-endian systems

to my char-misc git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git
in the char-misc-linus branch.

The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)

The patch will hopefully also be merged in Linus's tree for the next -rc kernel release.

If you have any questions about this process, please let me know.

From de18e978d0cda23e4c102e18092b63a5b0b3a800 Mon Sep 17 00:00:00 2001
From: David Lechner <[email protected]>
Date: Tue, 22 Jul 2025 15:54:21 -0500
Subject: iio: proximity: isl29501: fix buffered read on big-endian systems

Fix passing a u32 value as a u16 buffer scan item. This works on little- endian systems, but not on big-endian systems.

A new local variable is introduced for getting the register value and the array is changed to a struct to make the data layout more explicit rather than just changing the type and having to recalculate the proper length needed for the timestamp.

---
 drivers/iio/proximity/isl29501.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

index d1510fe24050..f69db6f2f380 100644
@@ -938,12 +938,18 @@ static irqreturn_t isl29501_trigger_handler(int irq, void *p)
 	struct iio_dev *indio_dev = pf->indio_dev;
 	struct isl29501_private *isl29501 = iio_priv(indio_dev);
 	const unsigned long *active_mask = indio_dev->active_scan_mask;
-	u32 buffer[4] __aligned(8) = {}; /* 1x16-bit + naturally aligned ts */
+	u32 value;
+	struct {
+		u16 data;
+		aligned_s64 ts;
+	} scan = { };
 
-	if (test_bit(ISL29501_DISTANCE_SCAN_INDEX, active_mask))
-		isl29501_register_read(isl29501, REG_DISTANCE, buffer);
+	if (test_bit(ISL29501_DISTANCE_SCAN_INDEX, active_mask)) {
+		isl29501_register_read(isl29501, REG_DISTANCE, &value);
+		scan.data = value;
+	}
 
-	iio_push_to_buffers_with_timestamp(indio_dev, buffer, pf->timestamp);
+	iio_push_to_buffers_with_timestamp(indio_dev, &scan, pf->timestamp);
 	iio_trigger_notify_done(indio_dev->trig);
 
 	return IRQ_HANDLED;

2.50.1