[PATCH 6.6.y] iio: pressure: mprls0025pa: use aligned_s64 for timestamp

[Sasha Levin <sashal@kernel.org>]

From: David Lechner <dlechner@baylibre.com>

[ Upstream commit ffcd19e9f4cca0c8f9e23e88f968711acefbb37b ]

Follow the pattern of other drivers and use aligned_s64 for the
timestamp. This will ensure the struct itself it also 8-byte aligned.

While touching this, convert struct mpr_chan to an anonymous struct
to consolidate the code a bit to make it easier for future readers.

Fixes: 713337d9143e ("iio: pressure: Honeywell mprls0025pa pressure sensor")
Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250418-iio-more-timestamp-alignment-v2-2-d6a5d2b1c9fe@baylibre.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[ Applied changes to mprls0025pa.c ]
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/iio/pressure/mprls0025pa.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/iio/pressure/mprls0025pa.c b/drivers/iio/pressure/mprls0025pa.c
index e3f0de020a40c..829c472812e49 100644
--- a/drivers/iio/pressure/mprls0025pa.c
+++ b/drivers/iio/pressure/mprls0025pa.c
@@ -87,11 +87,6 @@ static const struct mpr_func_spec mpr_func_spec[] = {
 	[MPR_FUNCTION_C] = {.output_min = 3355443, .output_max = 13421773},
 };
 
-struct mpr_chan {
-	s32			pres;		/* pressure value */
-	s64			ts;		/* timestamp */
-};
-
 struct mpr_data {
 	struct i2c_client	*client;
 	struct mutex		lock;		/*
@@ -120,7 +115,10 @@ struct mpr_data {
 						 * loop until data is ready
 						 */
 	struct completion	completion;	/* handshake from irq to read */
-	struct mpr_chan		chan;		/*
+	struct {
+		s32 pres;			/* pressure value */
+		aligned_s64 ts;			/* timestamp */
+	} chan;				/*
 						 * channel values for buffered
 						 * mode
 						 */
-- 
2.50.1