6.12-stable review patch. If anyone has any objections, please let me know.
------------------
From: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
commit accabfaae0940f9427c782bfee7340ce4c15151c upstream.
The PFC_MASK value for the PFC_mx registers is currently hardcoded to
0x07, which is correct for SoCs in the RZ/G2L family, but insufficient
for RZ/V2H and RZ/G3E, where the mask value should be 0x0f. This
discrepancy causes incorrect PFC register configuration on RZ/V2H and
RZ/G3E SoCs.
On RZ/G2L, the PFC_mx bitfields are also 4 bits wide, with bit 4 marked
as reserved. The reserved bits are documented to read as zero and be
ignored when written. Updating the PFC_MASK definition from 0x07 to
0x0f ensures compatibility with both SoC families while maintaining
correct behavior on RZ/G2L.
Fixes: 9bd95ac86e70 ("pinctrl: renesas: rzg2l: Add support for RZ/V2H SoC")
Cc: stable@xxxxxxxxxxxxxxx
Reported-by: Hien Huynh <hien.huynh.px@xxxxxxxxxxx>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Link: https://lore.kernel.org/20250110221045.594596-1-prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx
Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/pinctrl/renesas/pinctrl-rzg2l.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/pinctrl/renesas/pinctrl-rzg2l.c
+++ b/drivers/pinctrl/renesas/pinctrl-rzg2l.c
@@ -155,7 +155,7 @@
#define PWPR_REGWE_B BIT(5) /* OEN Register Write Enable, known only in RZ/V2H(P) */
#define PM_MASK 0x03
-#define PFC_MASK 0x07
+#define PFC_MASK 0x0f
#define IEN_MASK 0x01
#define IOLH_MASK 0x03
#define SR_MASK 0x01
