Refactor parity calculations to use the standard parity64() helper.
This change eliminates redundant implementations and improves code
efficiency.

Co-developed-by: Yu-Chun Lin <redacted>
Signed-off-by: Yu-Chun Lin <redacted>
Signed-off-by: Kuan-Wei Chiu <visitorckw@gmail.com>
---
Changes in v3:
- Change parity ^= parity64(v) to parity != parity64(v).

 drivers/fsi/fsi-master-i2cr.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/fsi/fsi-master-i2cr.c b/drivers/fsi/fsi-master-i2cr.c
index 46511236bbca..3356c478e395 100644
--- a/drivers/fsi/fsi-master-i2cr.c
+++ b/drivers/fsi/fsi-master-i2cr.c

@@ -44,15 +44,9 @@ static bool i2cr_check_parity32(u32 v, bool parity)
 
 static bool i2cr_check_parity64(u64 v)
 {
-	u32 i;
 	bool parity = I2CR_INITIAL_PARITY;
 
-	for (i = 0; i < 64; ++i) {
-		if (v & (1llu << i))
-			parity = !parity;
-	}
-
-	return parity;
+	return parity != parity64(v);
 }
 
 static u32 i2cr_get_command(u32 address, bool parity)

-- 
2.34.1