[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <CAOCk7NpyYSiDHP84E4bQiTA1Wk9Sd4w-F8-Zqu9tKtDoUTsFDw@mail.gmail.com>
Date: Tue, 2 Jul 2019 14:30:39 -0600
From: Jeffrey Hugo <jeffrey.l.hugo@...il.com>
To: Rob Clark <robdclark@...il.com>
Cc: "open list:DRM PANEL DRIVERS" <dri-devel@...ts.freedesktop.org>,
Rob Clark <robdclark@...omium.org>,
David Airlie <airlied@...ux.ie>,
MSM <linux-arm-msm@...r.kernel.org>,
Jordan Crouse <jcrouse@...eaurora.org>,
Abhinav Kumar <abhinavk@...eaurora.org>,
lkml <linux-kernel@...r.kernel.org>, Sean Paul <sean@...rly.run>,
Sibi Sankar <sibis@...eaurora.org>,
Daniel Vetter <daniel@...ll.ch>,
freedreno <freedreno@...ts.freedesktop.org>,
Chandan Uddaraju <chandanu@...eaurora.org>
Subject: Re: [Freedreno] [PATCH 3/3] drm/msm/dsi: make sure we have panel or
bridge earlier
On Sun, Jun 30, 2019 at 7:16 AM Rob Clark <robdclark@...il.com> wrote:
> --- a/drivers/gpu/drm/msm/dsi/dsi_host.c
> +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
> @@ -1824,6 +1824,20 @@ int msm_dsi_host_init(struct msm_dsi *msm_dsi)
> goto fail;
> }
>
> + /*
> + * Make sure we have panel or bridge early, before we start
> + * touching the hw. If bootloader enabled the display, we
> + * want to be sure to keep it running until the bridge/panel
> + * is probed and we are all ready to go. Otherwise we'll
> + * kill the display and then -EPROBE_DEFER
> + */
> + if (IS_ERR(of_drm_find_panel(msm_host->device_node)) &&
> + !of_drm_find_bridge(msm_host->device_node)) {
> + pr_err("%s: no panel or bridge yet\n", __func__);
pr_err() doesn't seem right for a probe defer condition. pr_dbg?
> + return -EPROBE_DEFER;
> + }
> +
> +
Tested-by: Jeffrey Hugo <jeffrey.l.hugo@...il.com>
Reviewed-by: Jeffrey Hugo <jeffrey.l.hugo@...il.com>
Powered by blists - more mailing lists