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[v3] meson saradc: fix clock divider mask length

Message ID 20230606165357.42417-1-gnstark@sberdevices.ru (mailing list archive)
State New, archived
Headers show
Series [v3] meson saradc: fix clock divider mask length | expand

Commit Message

George Stark June 6, 2023, 4:53 p.m. UTC
According to datasheets of supported meson SOCs length of ADC_CLK_DIV
field is 6 bits long. Although all supported SOCs have the register
with that field documented later SOCs use external clock rather than
ADC internal clock so this patch affects only meson8 family (S8* SOCs)

Fixes: 3adbf3427330 ("iio: adc: add a driver for the SAR ADC found in Amlogic Meson SoCs")
Signed-off-by: George Stark <GNStark@sberdevices.ru>
---
Changelog:

v1 -> v2:
    * Update commit message
v2 -> v3:
    * Update commit message
---
 drivers/iio/adc/meson_saradc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Martin Blumenstingl June 6, 2023, 7:14 p.m. UTC | #1
Thank you George!

On Tue, Jun 6, 2023 at 6:54 PM George Stark <gnstark@sberdevices.ru> wrote:
>
> According to datasheets of supported meson SOCs length of ADC_CLK_DIV
> field is 6 bits long. Although all supported SOCs have the register
> with that field documented later SOCs use external clock rather than
> ADC internal clock so this patch affects only meson8 family (S8* SOCs)
>
> Fixes: 3adbf3427330 ("iio: adc: add a driver for the SAR ADC found in Amlogic Meson SoCs")
> Signed-off-by: George Stark <GNStark@sberdevices.ru>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Andy Shevchenko June 6, 2023, 10:52 p.m. UTC | #2
Tue, Jun 06, 2023 at 07:53:57PM +0300, George Stark kirjoitti:
> According to datasheets of supported meson SOCs length of ADC_CLK_DIV

the datasheets

> field is 6 bits long. Although all supported SOCs have the register

6-bit

> with that field documented later SOCs use external clock rather than
> ADC internal clock so this patch affects only meson8 family (S8* SOCs)

s/SOC/SoC/g, and mind the grammar period at the end.

I believe Jonathan can fix when applying this, no need to resend unless
he asks for it.

FWIW,
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>

> Fixes: 3adbf3427330 ("iio: adc: add a driver for the SAR ADC found in Amlogic Meson SoCs")
> Signed-off-by: George Stark <GNStark@sberdevices.ru>
> ---
> Changelog:
> 
> v1 -> v2:
>     * Update commit message
> v2 -> v3:
>     * Update commit message
> ---
>  drivers/iio/adc/meson_saradc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/iio/adc/meson_saradc.c b/drivers/iio/adc/meson_saradc.c
> index 85b6826cc10c..b93ff42b8c19 100644
> --- a/drivers/iio/adc/meson_saradc.c
> +++ b/drivers/iio/adc/meson_saradc.c
> @@ -72,7 +72,7 @@
>  	#define MESON_SAR_ADC_REG3_PANEL_DETECT_COUNT_MASK	GENMASK(20, 18)
>  	#define MESON_SAR_ADC_REG3_PANEL_DETECT_FILTER_TB_MASK	GENMASK(17, 16)
>  	#define MESON_SAR_ADC_REG3_ADC_CLK_DIV_SHIFT		10
> -	#define MESON_SAR_ADC_REG3_ADC_CLK_DIV_WIDTH		5
> +	#define MESON_SAR_ADC_REG3_ADC_CLK_DIV_WIDTH		6
>  	#define MESON_SAR_ADC_REG3_BLOCK_DLY_SEL_MASK		GENMASK(9, 8)
>  	#define MESON_SAR_ADC_REG3_BLOCK_DLY_MASK		GENMASK(7, 0)
>  
> -- 
> 2.38.4
>
diff mbox series

Patch

diff --git a/drivers/iio/adc/meson_saradc.c b/drivers/iio/adc/meson_saradc.c
index 85b6826cc10c..b93ff42b8c19 100644
--- a/drivers/iio/adc/meson_saradc.c
+++ b/drivers/iio/adc/meson_saradc.c
@@ -72,7 +72,7 @@ 
 	#define MESON_SAR_ADC_REG3_PANEL_DETECT_COUNT_MASK	GENMASK(20, 18)
 	#define MESON_SAR_ADC_REG3_PANEL_DETECT_FILTER_TB_MASK	GENMASK(17, 16)
 	#define MESON_SAR_ADC_REG3_ADC_CLK_DIV_SHIFT		10
-	#define MESON_SAR_ADC_REG3_ADC_CLK_DIV_WIDTH		5
+	#define MESON_SAR_ADC_REG3_ADC_CLK_DIV_WIDTH		6
 	#define MESON_SAR_ADC_REG3_BLOCK_DLY_SEL_MASK		GENMASK(9, 8)
 	#define MESON_SAR_ADC_REG3_BLOCK_DLY_MASK		GENMASK(7, 0)