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

Drop unused macro DCR and its bit definition.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
---
v2->v3:
 * No change.
v1->v2:
 * No change.
---
 drivers/tty/serial/rsci.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/tty/serial/rsci.c b/drivers/tty/serial/rsci.c
index 9681e8ef4bfb..9fa5d387d7db 100644
--- a/drivers/tty/serial/rsci.c
+++ b/drivers/tty/serial/rsci.c
@@ -24,7 +24,6 @@ MODULE_IMPORT_NS("SH_SCI");
 #define CCR3	0x14
 #define CCR4	0x18
 #define FCR	0x24
-#define DCR	0x30
 #define CSR	0x48
 #define FRSR	0x50
 #define FTSR	0x54
@@ -119,8 +118,6 @@ MODULE_IMPORT_NS("SH_SCI");
 /* FFCLR (FIFO Flag CLear Register) */
 #define FFCLR_DRC		BIT(0)	/* DR Clear */
 
-#define DCR_DEPOL		BIT(0)
-
 static u32 rsci_serial_in(struct uart_port *p, int offset)
 {
 	return readl(p->membase + offset);
-- 
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 unused macro DCR and its bit definition.
>
> Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>

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

But I am not a big fan of dropping register documentation.
It must be reverted when adding RS-485 support.

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