diff mbox

tty: serial: msm: Fix mask value of RFR level

Message ID 1428414446-21282-1-git-send-email-gpramod@codeaurora.org (mailing list archive)
State Not Applicable, archived
Delegated to: Andy Gross
Headers show

Commit Message

Pramod Gurav April 7, 2015, 1:47 p.m. UTC
According to documents The RFR_LEVEL1 in UART_DM_MR1 can be
programmed in bits 31:8 but the masks only bits 17:8.
Correct the same.

Signed-off-by: Pramod Gurav <gpramod@codeaurora.org>
---
 drivers/tty/serial/msm_serial.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Stephen Boyd April 7, 2015, 11:07 p.m. UTC | #1
On 04/07/15 06:47, Pramod Gurav wrote:
> According to documents The RFR_LEVEL1 in UART_DM_MR1 can be

That is UART_DM_MR1

> programmed in bits 31:8 but the masks only bits 17:8.
> Correct the same.
>
> Signed-off-by: Pramod Gurav <gpramod@codeaurora.org>
> ---
>  drivers/tty/serial/msm_serial.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/tty/serial/msm_serial.h b/drivers/tty/serial/msm_serial.h
> index 8f7806d..5ff9ebf 100644
> --- a/drivers/tty/serial/msm_serial.h
> +++ b/drivers/tty/serial/msm_serial.h
> @@ -19,7 +19,7 @@
>  #define UART_MR1			0x0000
>  
>  #define UART_MR1_AUTO_RFR_LEVEL0	0x3F
> -#define UART_MR1_AUTO_RFR_LEVEL1	0x3FF00
> +#define UART_MR1_AUTO_RFR_LEVEL1	0xFFFFFF00

But this is UART_MR1. The two hardware cores share the same driver
because the DM hardware is based on the non-DM hardware. I suppose we
need to make another #define UART_DM_MR1_AUTO_RFR_LEVEL1 and then have
an if (msm_port->is_uartdm) in msm_startup() path to handle the
differences here.

>  #define UART_MR1_RX_RDY_CTL    		(1 << 7)
>  #define UART_MR1_CTS_CTL       		(1 << 6)
>
diff mbox

Patch

diff --git a/drivers/tty/serial/msm_serial.h b/drivers/tty/serial/msm_serial.h
index 8f7806d..5ff9ebf 100644
--- a/drivers/tty/serial/msm_serial.h
+++ b/drivers/tty/serial/msm_serial.h
@@ -19,7 +19,7 @@ 
 #define UART_MR1			0x0000
 
 #define UART_MR1_AUTO_RFR_LEVEL0	0x3F
-#define UART_MR1_AUTO_RFR_LEVEL1	0x3FF00
+#define UART_MR1_AUTO_RFR_LEVEL1	0xFFFFFF00
 #define UART_MR1_RX_RDY_CTL    		(1 << 7)
 #define UART_MR1_CTS_CTL       		(1 << 6)