From: Biju Das <biju.das.jz@bp.renesas.com>

Drop the unused TDR register-related macros.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
---
v2->v3:
 * No change.
v1->v2:
 * No change.
---
 drivers/tty/serial/rsci.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/tty/serial/rsci.c b/drivers/tty/serial/rsci.c
index 9fa5d387d7db..9609ef73a0d4 100644
--- a/drivers/tty/serial/rsci.c
+++ b/drivers/tty/serial/rsci.c
@@ -35,12 +35,6 @@ MODULE_IMPORT_NS("SH_SCI");
 #define RDR_FPER		BIT(11) /* FIFO Parity Error */
 #define RDR_RDAT_MSK		GENMASK(8, 0)
 
-/* TDR (Transmit Data Register) */
-#define TDR_MPBT		BIT(9)	/* Multiprocessor Transfer */
-#define TDR_TDAT_9BIT_LSHIFT	0
-#define TDR_TDAT_9BIT_VAL	0x1FF
-#define TDR_TDAT_9BIT_MSK	(TDR_TDAT_9BIT_VAL << TDR_TDAT_9BIT_LSHIFT)
-
 /* CCR0 (Common Control Register 0) */
 #define CCR0_SSE		BIT(24)	/* SSn# Pin Function Enable */
 #define CCR0_TEIE		BIT(21)	/* Transmit End Interrupt Enable */
-- 
2.43.0

On Fri, 14 Nov 2025 at 11:52, Biju <biju.das.au@gmail.com> wrote:
> From: Biju Das <biju.das.jz@bp.renesas.com>
>
> Drop the unused TDR register-related macros.
>
> Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

> --- a/drivers/tty/serial/rsci.c
> +++ b/drivers/tty/serial/rsci.c
> @@ -35,12 +35,6 @@ MODULE_IMPORT_NS("SH_SCI");
>  #define RDR_FPER               BIT(11) /* FIFO Parity Error */
>  #define RDR_RDAT_MSK           GENMASK(8, 0)
>
> -/* TDR (Transmit Data Register) */
> -#define TDR_MPBT               BIT(9)  /* Multiprocessor Transfer */

Might be useful, one day. But all other bits do not have defines yet anyway.

> -#define TDR_TDAT_9BIT_LSHIFT   0
> -#define TDR_TDAT_9BIT_VAL      0x1FF
> -#define TDR_TDAT_9BIT_MSK      (TDR_TDAT_9BIT_VAL << TDR_TDAT_9BIT_LSHIFT)

I agree this is rather useless.

> -
>  /* CCR0 (Common Control Register 0) */
>  #define CCR0_SSE               BIT(24) /* SSn# Pin Function Enable */
>  #define CCR0_TEIE              BIT(21) /* Transmit End Interrupt Enable */

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds