Re: [PATCH v3 11/24] drm/rockchip: dw-mipi-dsi: prepare panel after phy init

Sean Paul
2017-01-30T20:16:59Z

On Sun, Jan 29, 2017 at 01:24:31PM +0000, John Keeping wrote:
> Some panels need to be configured with commands sent over the MIPI link,
> which they will do in the prepare hook. Call this after the PHY has
> been initialized so that we are able to send commands to the panel.
>

Reviewed-by: Sean Paul <seanpaul@chromium.org>

> Signed-off-by: John Keeping <john@metanate.com>
> Reviewed-by: Chris Zhong <zyw@rock-chips.com>
> ---
> v3:
> - Add Chris' Reviewed-by
> Unchanged in v2
>
> drivers/gpu/drm/rockchip/dw-mipi-dsi.c | 6 ++++--
> 1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
> index ddbc037e7ced..7ada6d8ed143 100644
> --- a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
> +++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
> @@ -896,12 +896,14 @@ static void dw_mipi_dsi_encoder_enable(struct drm_encoder *encoder)
> dw_mipi_dsi_dphy_timing_config(dsi);
> dw_mipi_dsi_dphy_interface_config(dsi);
> dw_mipi_dsi_clear_err(dsi);
> - if (drm_panel_prepare(dsi->panel))
> - dev_err(dsi->dev, "failed to prepare panel\n");
>
> dw_mipi_dsi_phy_init(dsi);
> dw_mipi_dsi_wait_for_two_frames(mode);
>
> + dw_mipi_dsi_set_mode(dsi, DW_MIPI_DSI_CMD_MODE);
> + if (drm_panel_prepare(dsi->panel))
> + dev_err(dsi->dev, "failed to prepare panel\n");
> +
> dw_mipi_dsi_set_mode(dsi, DW_MIPI_DSI_VID_MODE);
> drm_panel_enable(dsi->panel);
>
> --
> 2.11.0.197.gb556de5.dirty
>
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--
Sean Paul, Software Engineer, Google / Chromium OS