Commit 00d082cc authored by Laurent Pinchart's avatar Laurent Pinchart

drm: rcar-du: lvds: Set LVEN and LVRES bits together on D3

On the D3 SoC the LVDS PHY must be enabled in the same register write
that enables the LVDS output. Skip writing the LVEN bit independently
on that platform, it will be set by the write that sets LVRES.
Signed-off-by: default avatarLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: default avatarJacopo Mondi <jacopo+renesas@jmondi.org>
parent 87137030
......@@ -485,8 +485,12 @@ static void rcar_lvds_enable(struct drm_bridge *bridge)
}
if (lvds->info->quirks & RCAR_LVDS_QUIRK_GEN3_LVEN) {
/* Turn on the LVDS PHY. */
/*
* Turn on the LVDS PHY. On D3, the LVEN and LVRES bit must be
* set at the same time, so don't write the register yet.
*/
lvdcr0 |= LVDCR0_LVEN;
if (!(lvds->info->quirks & RCAR_LVDS_QUIRK_PWD))
rcar_lvds_write(lvds, LVDCR0, lvdcr0);
}
......
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