[PATCH v6 2/4] can: rcar_canfd: Document that RZ/G3S has no Classical CAN mode

[Biju Das]

The header comments in the driver describe Classical CAN (CAN 2.0)
only mode as a mode the controller can operate in, without saying that
this does not apply to every supported SoC. RZ/G3S does not support
Classical CAN mode.

Update the comments to note the RZ/G3S exception, so that readers of
the driver are not misled about which SoCs can use that mode. This
matches the corresponding dt-bindings update.

No functional change.

Signed-off-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
---
v5->v6:
 * No change.
v5:
 * New patch.
---
 drivers/net/can/rcar/rcar_canfd.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/net/can/rcar/rcar_canfd.c b/drivers/net/can/rcar/rcar_canfd.c
index 74c3c3f20991..86fa88ccf63b 100644
--- a/drivers/net/can/rcar/rcar_canfd.c
+++ b/drivers/net/can/rcar/rcar_canfd.c
@@ -6,7 +6,7 @@
 
 /* The R-Car CAN FD controller can operate in either one of the below two modes
  *  - CAN FD only mode
- *  - Classical CAN (CAN 2.0) only mode
+ *  - Classical CAN (CAN 2.0) only mode (Except RZ/G3S)
  *
  * This driver puts the controller in CAN FD only mode by default. In this
  * mode, the controller acts as a CAN FD node that can also interoperate with
@@ -247,10 +247,10 @@
 #define RCANFD_CFFDCSTS_CFBRS		BIT(1)
 #define RCANFD_CFFDCSTS_CFESI		BIT(0)
 
-/* This controller supports either Classical CAN only mode or CAN FD only mode.
- * These modes are supported in two separate set of register maps & names.
- * However, some of the register offsets are common for both modes. Those
- * offsets are listed below as Common registers.
+/* This controller supports either Classical CAN only mode(Except RZ/G3S) or
+ * CAN FD only mode. These modes are supported in two separate set of register
+ * maps & names. However, some of the register offsets are common for both
+ * modes. Those offsets are listed below as Common registers.
  *
  * The CAN FD only mode specific registers & Classical CAN only mode specific
  * registers are listed separately. Their register names starts with

-- 
2.43.0