media/cec: use CEC_MAX_MSG_SIZE instead of hardcoded 16

Commit Message

Hans Verkuil Aug. 24, 2022, 6:57 a.m. UTC

Use the proper define for the maximum CEC message length instead of
hardcoding it.

Signed-off-by: Hans Verkuil <[e-mail]>
---

Patch

diff --git a/drivers/media/cec/platform/sti/stih-cec.c b/drivers/media/cec/platform/sti/stih-cec.c
index abf8e8bcbb34..4edbdd09535d 100644
--- a/drivers/media/cec/platform/sti/stih-cec.c
+++ b/drivers/media/cec/platform/sti/stih-cec.c
@@ -256,8 +256,8 @@  static void stih_rx_done(struct stih_cec *cec, u32 status)
 	if (!msg.len)
 		return;
 
-	if (msg.len > 16)
-		msg.len = 16;
+	if (msg.len > CEC_MAX_MSG_SIZE)
+		msg.len = CEC_MAX_MSG_SIZE;
 
 	for (i = 0; i < msg.len; i++)
 		msg.msg[i] = readl(cec->regs + CEC_RX_DATA_BASE + i);
diff --git a/drivers/media/i2c/adv7511-v4l2.c b/drivers/media/i2c/adv7511-v4l2.c
index 202e0cd83f90..910b5e83946a 100644
--- a/drivers/media/i2c/adv7511-v4l2.c
+++ b/drivers/media/i2c/adv7511-v4l2.c
@@ -943,8 +943,8 @@  static int adv7511_isr(struct v4l2_subdev *sd, u32 status, bool *handled)
 		v4l2_dbg(1, debug, sd, "%s: cec msg len %d\n", __func__,
 			 msg.len);
 
-		if (msg.len > 16)
-			msg.len = 16;
+		if (msg.len > CEC_MAX_MSG_SIZE)
+			msg.len = CEC_MAX_MSG_SIZE;
 
 		if (msg.len) {
 			u8 i;
diff --git a/drivers/media/i2c/adv7604.c b/drivers/media/i2c/adv7604.c
index 497419a5cfdd..815fe108281f 100644
--- a/drivers/media/i2c/adv7604.c
+++ b/drivers/media/i2c/adv7604.c
@@ -2047,8 +2047,8 @@  static void adv76xx_cec_isr(struct v4l2_subdev *sd, bool *handled)
 		struct cec_msg msg;
 
 		msg.len = cec_read(sd, 0x25) & 0x1f;
-		if (msg.len > 16)
-			msg.len = 16;
+		if (msg.len > CEC_MAX_MSG_SIZE)
+			msg.len = CEC_MAX_MSG_SIZE;
 
 		if (msg.len) {
 			u8 i;
diff --git a/drivers/media/i2c/adv7842.c b/drivers/media/i2c/adv7842.c
index 22caa070273b..c541f9b3444b 100644
--- a/drivers/media/i2c/adv7842.c
+++ b/drivers/media/i2c/adv7842.c
@@ -2215,8 +2215,8 @@  static void adv7842_cec_isr(struct v4l2_subdev *sd, bool *handled)
 		struct cec_msg msg;
 
 		msg.len = cec_read(sd, 0x25) & 0x1f;
-		if (msg.len > 16)
-			msg.len = 16;
+		if (msg.len > CEC_MAX_MSG_SIZE)
+			msg.len = CEC_MAX_MSG_SIZE;
 
 		if (msg.len) {
 			u8 i;