diff mbox series

[v2,3/6] serial: Use bits for UART_LSR_BRK_ERROR_BITS/MSR_ANY_DELTA

Message ID 20220621124958.3342-4-ilpo.jarvinen@linux.intel.com
State New
Headers show
Series serial: A few cleanups | expand

Commit Message

Ilpo Järvinen June 21, 2022, 12:49 p.m. UTC 
Instead of listing the bits for UART_LSR_BRK_ERROR_BITS and
UART_MSR_ANY_DELTA in comment, use them to define instead.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---
 include/uapi/linux/serial_reg.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Jiri Slaby (SUSE) June 23, 2022, 7:26 a.m. UTC | #1 
On 21. 06. 22, 14:49, Ilpo Järvinen wrote:
> Instead of listing the bits for UART_LSR_BRK_ERROR_BITS and
> UART_MSR_ANY_DELTA in comment, use them to define instead.
> 
> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

Reviewed-by: Jiri Slaby <jirislaby@kernel.org>
diff mbox series

Patch

diff --git a/include/uapi/linux/serial_reg.h b/include/uapi/linux/serial_reg.h
index f51bc8f36813..bab3b39266cc 100644
--- a/include/uapi/linux/serial_reg.h
+++ b/include/uapi/linux/serial_reg.h
@@ -139,7 +139,7 @@ 
 #define UART_LSR_PE		0x04 /* Parity error indicator */
 #define UART_LSR_OE		0x02 /* Overrun error indicator */
 #define UART_LSR_DR		0x01 /* Receiver data ready */
-#define UART_LSR_BRK_ERROR_BITS	0x1E /* BI, FE, PE, OE bits */
+#define UART_LSR_BRK_ERROR_BITS	(UART_LSR_BI|UART_LSR_FE|UART_LSR_PE|UART_LSR_OE)
 
 #define UART_MSR	6	/* In:  Modem Status Register */
 #define UART_MSR_DCD		0x80 /* Data Carrier Detect */
@@ -150,7 +150,7 @@ 
 #define UART_MSR_TERI		0x04 /* Trailing edge ring indicator */
 #define UART_MSR_DDSR		0x02 /* Delta DSR */
 #define UART_MSR_DCTS		0x01 /* Delta CTS */
-#define UART_MSR_ANY_DELTA	0x0F /* Any of the delta bits! */
+#define UART_MSR_ANY_DELTA	(UART_MSR_DDCD|UART_MSR_TERI|UART_MSR_DDSR|UART_MSR_DCTS)
 
 #define UART_SCR	7	/* I/O: Scratch Register */