Re: [PATCH 05/33] drm/panel-leadtek-ltk500hd1829: Fix dotclock

Heiko Stuebner
2020-03-04T07:47:58Z

Hi,

Am Montag, 2. März 2020, 21:34:24 CET schrieb Ville Syrjala:
> From: Ville Syrjälä <ville.syrjala@linux.intel.com>
>
> The currently listed dotclock disagrees with the currently
> listed vrefresh rate. Change the dotclock to match the vrefresh.
>
> Someone tell me which (if either) of the dotclock or vreresh is
> correct?

The values came that way from the vendor .
And lookin at other Leadtek display datasheets, 60Hz should be the
correct refresh rate.

The display is also running happily at the 69MHz of
your patch, so

Tested-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>

Heiko

>
> Cc: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
> Cc: Sam Ravnborg <sam@ravnborg.org>
> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
> ---
> drivers/gpu/drm/panel/panel-leadtek-ltk500hd1829.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/panel/panel-leadtek-ltk500hd1829.c b/drivers/gpu/drm/panel/panel-leadtek-ltk500hd1829.c
> index 76ecf2de9c44..113ab9c0396b 100644
> --- a/drivers/gpu/drm/panel/panel-leadtek-ltk500hd1829.c
> +++ b/drivers/gpu/drm/panel/panel-leadtek-ltk500hd1829.c
> @@ -377,7 +377,7 @@ static const struct drm_display_mode default_mode = {
> .vsync_end = 1280 + 30 + 4,
> .vtotal = 1280 + 30 + 4 + 12,
> .vrefresh = 60,
> - .clock = 41600,
> + .clock = 69217,
> .width_mm = 62,
> .height_mm = 110,
> };