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[1/1] 8250_dwlib: Convert bitops to newer form

Message ID 20220630100536.41329-1-ilpo.jarvinen@linux.intel.com
State New
Headers show
Series [1/1] 8250_dwlib: Convert bitops to newer form | expand

Commit Message

Ilpo Järvinen June 30, 2022, 10:05 a.m. UTC 
Instead of open-coding, use BIT(), GENMASK(), and FIELD_GET() helpers.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---
 drivers/tty/serial/8250/8250_dwlib.c | 26 +++++++++++++-------------
 1 file changed, 13 insertions(+), 13 deletions(-)
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Patch

diff --git a/drivers/tty/serial/8250/8250_dwlib.c b/drivers/tty/serial/8250/8250_dwlib.c
index da330ef46446..a8bbed74ea70 100644
--- a/drivers/tty/serial/8250/8250_dwlib.c
+++ b/drivers/tty/serial/8250/8250_dwlib.c
@@ -46,21 +46,21 @@ 
 #define DW_UART_LCR_EXT_TRANSMIT_MODE	BIT(3)
 
 /* Component Parameter Register bits */
-#define DW_UART_CPR_ABP_DATA_WIDTH	(3 << 0)
-#define DW_UART_CPR_AFCE_MODE		(1 << 4)
-#define DW_UART_CPR_THRE_MODE		(1 << 5)
-#define DW_UART_CPR_SIR_MODE		(1 << 6)
-#define DW_UART_CPR_SIR_LP_MODE		(1 << 7)
-#define DW_UART_CPR_ADDITIONAL_FEATURES	(1 << 8)
-#define DW_UART_CPR_FIFO_ACCESS		(1 << 9)
-#define DW_UART_CPR_FIFO_STAT		(1 << 10)
-#define DW_UART_CPR_SHADOW		(1 << 11)
-#define DW_UART_CPR_ENCODED_PARMS	(1 << 12)
-#define DW_UART_CPR_DMA_EXTRA		(1 << 13)
-#define DW_UART_CPR_FIFO_MODE		(0xff << 16)
+#define DW_UART_CPR_ABP_DATA_WIDTH	GENMASK(1, 0)
+#define DW_UART_CPR_AFCE_MODE		BIT(4)
+#define DW_UART_CPR_THRE_MODE		BIT(5)
+#define DW_UART_CPR_SIR_MODE		BIT(6)
+#define DW_UART_CPR_SIR_LP_MODE		BIT(7)
+#define DW_UART_CPR_ADDITIONAL_FEATURES	BIT(8)
+#define DW_UART_CPR_FIFO_ACCESS		BIT(9)
+#define DW_UART_CPR_FIFO_STAT		BIT(10)
+#define DW_UART_CPR_SHADOW		BIT(11)
+#define DW_UART_CPR_ENCODED_PARMS	BIT(12)
+#define DW_UART_CPR_DMA_EXTRA		BIT(13)
+#define DW_UART_CPR_FIFO_MODE		GENMASK(23, 16)
 
 /* Helper for FIFO size calculation */
-#define DW_UART_CPR_FIFO_SIZE(a)	(((a >> 16) & 0xff) * 16)
+#define DW_UART_CPR_FIFO_SIZE(a)	(FIELD_GET(DW_UART_CPR_FIFO_MODE, (a)) * 16)
 
 /*
  * divisor = div(I) + div(F)