drm: rcar-du: rzg2l_mipi_dsi: Enhance device lanes check

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Enhance device lanes check by reading TXSETR register at probe(),
and enforced in rzg2l_mipi_dsi_host_attach().

As per HW manual, we can read TXSETR register only after
DPHY initialization.

Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

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Biju Das 2022-09-20 11:55:01 +01:00 • committed by Laurent Pinchart

parent 7a043f978e

commit 418bb3a69e

1 changed files with 88 additions and 34 deletions

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drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c

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