[PATCH RFT v2 5/5] i3c: cdns: use get_parity8 helper instead of open coding it

From: Wolfram Sang
Date: Sun Dec 29 2024 - 05:13:48 EST


The kernel has now a generic helper for getting parity with easier to
understand semantics. Make use of it.

Signed-off-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
---
Changes since v1:

* renamed from 'get_parity8' to 'parity8'
* rebased to 6.13-rc4

drivers/i3c/master/i3c-master-cdns.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/i3c/master/i3c-master-cdns.c b/drivers/i3c/master/i3c-master-cdns.c
index 06c0592487d3..fedbe6624a1c 100644
--- a/drivers/i3c/master/i3c-master-cdns.c
+++ b/drivers/i3c/master/i3c-master-cdns.c
@@ -889,8 +889,7 @@ static u32 prepare_rr0_dev_address(u32 addr)
ret |= (addr & GENMASK(9, 7)) << 6;

/* RR0[0] = ~XOR(addr[6:0]) */
- if (!(hweight8(addr & 0x7f) & 1))
- ret |= 1;
+ ret |= parity8(addr & 0x7f) ? 0 : BIT(0);

return ret;
}
--
2.39.2