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[v2,3/3] drivers: mfd: ti_am335x_tscadc: increase ADC ref clock to 24MHz

Message ID 20161111075838.5815-1-mugunthanvnm@ti.com (mailing list archive)
State New, archived
Headers show

Commit Message

Mugunthan V N Nov. 11, 2016, 7:58 a.m. UTC
Increase ADC reference clock from 3MHz to 24MHz so that the
sampling rates goes up from 100K samples per second to 800K
samples per second on AM335x and AM437x SoC.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
---
 include/linux/mfd/ti_am335x_tscadc.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Lee Jones Nov. 22, 2016, 1:04 p.m. UTC | #1
Don't make up $SUBJECT line format.

> Increase ADC reference clock from 3MHz to 24MHz so that the
> sampling rates goes up from 100K samples per second to 800K
> samples per second on AM335x and AM437x SoC.
> 
> Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
> ---
>  include/linux/mfd/ti_am335x_tscadc.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Change looks okay though.

For my own reference:
  Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org>

> diff --git a/include/linux/mfd/ti_am335x_tscadc.h b/include/linux/mfd/ti_am335x_tscadc.h
> index b9a53e013bff..f6c449b96ea5 100644
> --- a/include/linux/mfd/ti_am335x_tscadc.h
> +++ b/include/linux/mfd/ti_am335x_tscadc.h
> @@ -137,7 +137,7 @@
>  #define SEQ_STATUS BIT(5)
>  #define CHARGE_STEP		0x11
>  
> -#define ADC_CLK			3000000
> +#define ADC_CLK			24000000
>  #define TOTAL_STEPS		16
>  #define TOTAL_CHANNELS		8
>  #define FIFO1_THRESHOLD		19
diff mbox

Patch

diff --git a/include/linux/mfd/ti_am335x_tscadc.h b/include/linux/mfd/ti_am335x_tscadc.h
index b9a53e013bff..f6c449b96ea5 100644
--- a/include/linux/mfd/ti_am335x_tscadc.h
+++ b/include/linux/mfd/ti_am335x_tscadc.h
@@ -137,7 +137,7 @@ 
 #define SEQ_STATUS BIT(5)
 #define CHARGE_STEP		0x11
 
-#define ADC_CLK			3000000
+#define ADC_CLK			24000000
 #define TOTAL_STEPS		16
 #define TOTAL_CHANNELS		8
 #define FIFO1_THRESHOLD		19