[PATCH v3 7/7] drm/tinydrm/mipi-dbi: Change reset active time

David Lechner david at lechnology.com
Thu Jan 11 22:24:04 UTC 2018


On 01/10/2018 12:59 PM, Noralf Trønnes wrote:
> The MIPI DBI spec states that reset active/low time should be more
> than 9us. Change from 20ms to 20us.
> 
> Signed-off-by: Noralf Trønnes <noralf at tronnes.org>
> ---
>   drivers/gpu/drm/tinydrm/mipi-dbi.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/tinydrm/mipi-dbi.c b/drivers/gpu/drm/tinydrm/mipi-dbi.c
> index 6798b4837441..75dd65c57e74 100644
> --- a/drivers/gpu/drm/tinydrm/mipi-dbi.c
> +++ b/drivers/gpu/drm/tinydrm/mipi-dbi.c
> @@ -414,7 +414,7 @@ void mipi_dbi_hw_reset(struct mipi_dbi *mipi)
>   		return;
>   
>   	gpiod_set_value_cansleep(mipi->reset, 0);
> -	msleep(20);
> +	usleep_range(20, 1000);
>   	gpiod_set_value_cansleep(mipi->reset, 1);
>   	msleep(120);
>   }
> 

Reviewed-by: David Lechner <david at lechnology.com>
Tested-by: David Lechner <david at lechnology.com>



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