[PATCH] drm/hisilicon: Set preferred mode resolution and maximum resolution

[Xinliang Liu]

On Wed, 19 Feb 2020 at 10:52, Tian Tao <tiantao6 at hisilicon.com> wrote:

> set the preferred mode resolution to 1024 * 768 and maximum
> resolution to 1920 * 1200.
>
> Signed-off-by: Tian Tao <tiantao6 at hisilicon.com>
> Signed-off-by: Gong junjie <gongjunjie2 at huawei.com>
> ---
>  drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c | 10 +++++++++-
>  1 file changed, 9 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c
> b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c
> index 6d98fdc..82fc7d3 100644
> --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c
> +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c
> @@ -11,8 +11,10 @@
>   *     Jianhua Li <lijianhua at huawei.com>
>   */
>
> +#include <drm/drm_gem_vram_helper.h>
>  #include <drm/drm_atomic_helper.h>
>  #include <drm/drm_probe_helper.h>
> +#include <drm/drm_crtc_helper.h>
>  #include <drm/drm_print.h>
>
>  #include "hibmc_drm_drv.h"
> @@ -20,7 +22,13 @@
>
>  static int hibmc_connector_get_modes(struct drm_connector *connector)
>  {
> -       return drm_add_modes_noedid(connector, 800, 600);
> +       int count;
> +
> +       drm_connector_update_edid_property(connector, NULL);
> +       count = drm_add_modes_noedid(connector, 1920, 1200);
>

Hi Tao, maybe it's better like this:
count = drm_add_modes_noedid( connector ,
                                      conn->dev->mode_config.max_width,
                                      conn->dev->mode_config.max_height);


> +       drm_set_preferred_mode(connector, 1024, 768);
> +
> +       return count;
>  }
>
>  static enum drm_mode_status hibmc_connector_mode_valid(struct
> drm_connector *connector,
> --
> 2.7.4
>
>
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