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From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To: "Heiko Stübner" <heiko@sntech.de>, linux-input@vger.kernel.org
Cc: Andreas Kemnade <andreas@kemnade.info>, linux-kernel@vger.kernel.org
Subject: [PATCH 09/18] Input: zforce_ts - switch to using get_unaligned_le16
Date: Fri, 23 Aug 2024 22:50:33 -0700	[thread overview]
Message-ID: <20240824055047.1706392-10-dmitry.torokhov@gmail.com> (raw)
In-Reply-To: <20240824055047.1706392-1-dmitry.torokhov@gmail.com>

Instead of doing conversion from little-endian data to CPU endianness
by hand use existing helpers.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/zforce_ts.c | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/input/touchscreen/zforce_ts.c b/drivers/input/touchscreen/zforce_ts.c
index 0dea389594bd..32f3d74bd339 100644
--- a/drivers/input/touchscreen/zforce_ts.c
+++ b/drivers/input/touchscreen/zforce_ts.c
@@ -22,6 +22,7 @@
 #include <linux/property.h>
 #include <linux/regulator/consumer.h>
 #include <linux/slab.h>
+#include <asm/unaligned.h>
 
 #define WAIT_TIMEOUT		msecs_to_jiffies(1000)
 
@@ -327,10 +328,8 @@ static int zforce_touch_event(struct zforce_ts *ts, u8 *payload)
 	}
 
 	for (i = 0; i < count; i++) {
-		point.coord_x =
-			payload[9 * i + 2] << 8 | payload[9 * i + 1];
-		point.coord_y =
-			payload[9 * i + 4] << 8 | payload[9 * i + 3];
+		point.coord_x = get_unaligned_le16(&payload[9 * i + 1]);
+		point.coord_y = get_unaligned_le16(&payload[9 * i + 3]);
 
 		if (point.coord_x > ts->prop.max_x ||
 		    point.coord_y > ts->prop.max_y) {
@@ -521,14 +520,15 @@ static irqreturn_t zforce_irq_thread(int irq, void *dev_id)
 			 * Version Payload Results
 			 * [2:major] [2:minor] [2:build] [2:rev]
 			 */
-			ts->version_major = (payload[RESPONSE_DATA + 1] << 8) |
-						payload[RESPONSE_DATA];
-			ts->version_minor = (payload[RESPONSE_DATA + 3] << 8) |
-						payload[RESPONSE_DATA + 2];
-			ts->version_build = (payload[RESPONSE_DATA + 5] << 8) |
-						payload[RESPONSE_DATA + 4];
-			ts->version_rev   = (payload[RESPONSE_DATA + 7] << 8) |
-						payload[RESPONSE_DATA + 6];
+			ts->version_major =
+				get_unaligned_le16(&payload[RESPONSE_DATA]);
+			ts->version_minor =
+				get_unaligned_le16(&payload[RESPONSE_DATA + 2]);
+			ts->version_build =
+				get_unaligned_le16(&payload[RESPONSE_DATA + 4]);
+			ts->version_rev =
+				get_unaligned_le16(&payload[RESPONSE_DATA + 6]);
+
 			dev_dbg(&ts->client->dev,
 				"Firmware Version %04x:%04x %04x:%04x\n",
 				ts->version_major, ts->version_minor,
-- 
2.46.0.295.g3b9ea8a38a-goog


  parent reply	other threads:[~2024-08-24  5:51 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-08-24  5:50 [PATCH 00/18] zforse_ts: assorted cleanups Dmitry Torokhov
2024-08-24  5:50 ` [PATCH 01/18] Input: zforce_ts - use devm_add_action_or_reset() Dmitry Torokhov
2024-08-24 11:13   ` Heiko Stübner
2024-08-29 17:54     ` Dmitry Torokhov
2024-08-24  5:50 ` [PATCH 02/18] Input: zforce_ts - simplify reporting of slot state Dmitry Torokhov
2024-08-24  5:50 ` [PATCH 03/18] Input: zforce_ts - remove support for platfrom data Dmitry Torokhov
2024-08-24  5:50 ` [PATCH 04/18] Input: zforce_ts - do not explicitly set EV_SYN, etc bits Dmitry Torokhov
2024-08-24  5:50 ` [PATCH 05/18] Input: zforce_ts - handle errors from input_mt_init_sots() Dmitry Torokhov
2024-08-24  5:50 ` [PATCH 06/18] Input: zforce_ts - remove unneeded locking Dmitry Torokhov
2024-08-24  5:50 ` [PATCH 07/18] Input: zforce_ts - ensure that pm_stay_awake() and pm_relax() are balanced Dmitry Torokhov
2024-08-24  5:50 ` [PATCH 08/18] Input: zforce_ts - use guard notation when acquiring mutexes Dmitry Torokhov
2024-08-24  5:50 ` Dmitry Torokhov [this message]
2024-08-24  5:50 ` [PATCH 10/18] Input: zforce_ts - make parsing of contacts less confusing Dmitry Torokhov
2024-08-24  5:50 ` [PATCH 11/18] Input: zforce_ts - do not ignore errors when acquiring regulator Dmitry Torokhov
2024-08-24  5:50 ` [PATCH 12/18] Input: zforce_ts - use dev_err_probe() where appropriate Dmitry Torokhov
2024-08-24  5:50 ` [PATCH 13/18] Input: zforce_ts - make zforce_idtable constant Dmitry Torokhov
2024-08-24  5:50 ` [PATCH 14/18] Input: zforce_ts - stop treating VDD regulator as optional Dmitry Torokhov
2024-08-24  5:50 ` [PATCH 15/18] Input: zforce_ts - switch to using devm_regulator_get_enable() Dmitry Torokhov
2024-08-24  5:50 ` [PATCH 16/18] Input: zforce_ts - do not hardcode interrupt level Dmitry Torokhov
2024-08-24  5:50 ` [PATCH 17/18] Input: zforce_ts - remove assert/deassert wrappers Dmitry Torokhov
2024-08-24  5:50 ` [PATCH 18/18] Input: zforce_ts - switch to using asynchronous probing Dmitry Torokhov
2024-09-02  8:08 ` [PATCH 00/18] zforse_ts: assorted cleanups Andreas Kemnade
2024-09-06  5:49   ` Dmitry Torokhov

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