Re: [PATCH 02/24] display/xlnx_dp: Fix to realize "i2c-ddc" and "aux-to-i2c-bridge"

[Alistair Francis <alistair23@gmail.com>]

On Sun, May 17, 2020 at 10:14 PM Markus Armbruster <armbru@redhat.com> wrote:
>
> xlnx_dp_init() creates these two devices, but they're never realized.
> Affects machine xlnx-zcu102.
>
> I wonder how this ever worked.  If the "device becomes real only on
> realize" thing actually works, then we've always been missing these
> two devices, yet nobody noticed.
>
> Fix by realizing them in xlnx_dp_realize().
>
> Fixes: 58ac482a66de09a7590f705e53fc6a3fb8a055e8
> Cc: KONRAD Frederic <fred.konrad@greensocs.com>
> Cc: Alistair Francis <alistair@alistair23.me>
> Cc: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
> Cc: Peter Maydell <peter.maydell@linaro.org>
> Cc: qemu-arm@nongnu.org
> Signed-off-by: Markus Armbruster <armbru@redhat.com>

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>

Alistair

> ---
>  hw/display/xlnx_dp.c | 4 ++++
>  1 file changed, 4 insertions(+)
>
> diff --git a/hw/display/xlnx_dp.c b/hw/display/xlnx_dp.c
> index 3e5fb44e06..bdc229a51e 100644
> --- a/hw/display/xlnx_dp.c
> +++ b/hw/display/xlnx_dp.c
> @@ -1264,9 +1264,13 @@ static void xlnx_dp_realize(DeviceState *dev, Error **errp)
>      DisplaySurface *surface;
>      struct audsettings as;
>
> +    qdev_init_nofail(DEVICE(s->aux_bus->bridge));
> +
>      qdev_init_nofail(DEVICE(s->dpcd));
>      aux_map_slave(AUX_SLAVE(s->dpcd), 0x0000);
>
> +    qdev_init_nofail(DEVICE(s->edid));
> +
>      s->console = graphic_console_init(dev, 0, &xlnx_dp_gfx_ops, s);
>      surface = qemu_console_surface(s->console);
>      xlnx_dpdma_set_host_data_location(s->dpdma, DP_GRAPHIC_DMA_CHANNEL,
> --
> 2.21.1
>
>