[v1] drm/msm/disp/dpu1: program 3d_merge only if block is attached

[Rob Clark]

On Fri, Apr 2, 2021 at 4:55 AM Kalyan Thota <kalyan_t at codeaurora.org> wrote:
>
> Update the 3d merge as active in the data path only if
> the hw block is selected in the configuration.
>
> Reported-by: Stephen Boyd <swboyd at chromium.org>

Thanks, I've added:

Fixes: 73bfb790ac78 ("msm:disp:dpu1: setup display datapath for SC7180 target")

> Signed-off-by: Kalyan Thota <kalyan_t at codeaurora.org>
> ---
>  drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
> index 8981cfa..92e6f1b 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
> @@ -496,7 +496,9 @@ static void dpu_hw_ctl_intf_cfg_v1(struct dpu_hw_ctl *ctx,
>
>         DPU_REG_WRITE(c, CTL_TOP, mode_sel);
>         DPU_REG_WRITE(c, CTL_INTF_ACTIVE, intf_active);
> -       DPU_REG_WRITE(c, CTL_MERGE_3D_ACTIVE, BIT(cfg->merge_3d - MERGE_3D_0));
> +       if (cfg->merge_3d)
> +               DPU_REG_WRITE(c, CTL_MERGE_3D_ACTIVE,
> +                             BIT(cfg->merge_3d - MERGE_3D_0));
>  }
>
>  static void dpu_hw_ctl_intf_cfg(struct dpu_hw_ctl *ctx,
> --
> 2.7.4
>