can: rcar_canfd: Fix R-Car Gen4 CFCC.CFTML field width

On R-Car Gen4 CAN_FD variants, the Common FIFO TX Message Buffer Link
(CFTML) field in the Common FIFO Configuration / Control Register (CCFC)
register is one bit wider than on older variants.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/all/9c37aaa799a2391be272dbaa474379cf9a7af147.1674499048.git.geert+renesas@glider.be
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

diff --git a/drivers/net/can/rcar/rcar_canfd.c b/drivers/net/can/rcar/rcar_canfd.c
index ee7bbd9d1151201b38ac3628dced891a81cab216..376a5d606acc66c26958ced6f61aa887448c8e3c 100644 (file)
--- a/drivers/net/can/rcar/rcar_canfd.c
+++ b/drivers/net/can/rcar/rcar_canfd.c
@@ -233,7 +233,8 @@
 /* Common FIFO bits */
 
 /* RSCFDnCFDCFCCk */
-#define RCANFD_CFCC_CFTML(gpriv, x)    (((x) & 0xf) << reg_gen4(gpriv, 16, 20))
+#define RCANFD_CFCC_CFTML(gpriv, x)    \
+       (((x) & reg_gen4(gpriv, 0x1f, 0xf)) << reg_gen4(gpriv, 16, 20))
 #define RCANFD_CFCC_CFM(gpriv, x)      (((x) & 0x3) << reg_gen4(gpriv,  8, 16))
 #define RCANFD_CFCC_CFIM               BIT(12)
 #define RCANFD_CFCC_CFDC(gpriv, x)     (((x) & 0x7) << reg_gen4(gpriv, 21,  8))