linux-kernel - Re: [PATCH 2/5] drm/i915/dsi: Move poking of panel-enable GPIO to intel_dsi

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Date:   Mon, 16 Dec 2019 11:27:38 +0100
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Hans de Goede <hdegoede@...hat.com>
Cc:     Jani Nikula <jani.nikula@...ux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>,
        Ville Syrjälä <ville.syrjala@...ux.intel.com>,
        Lee Jones <lee.jones@...aro.org>,
        intel-gfx <intel-gfx@...ts.freedesktop.org>,
        "open list:DRM PANEL DRIVERS" <dri-devel@...ts.freedesktop.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>
Subject: Re: [PATCH 2/5] drm/i915/dsi: Move poking of panel-enable GPIO to intel_dsi_vbt.c

On Sun, Dec 15, 2019 at 5:38 PM Hans de Goede <hdegoede@...hat.com> wrote:

> On some older devices (BYT, CHT) which may use v2 VBT MIPI-sequences,
> we need to manually control the panel enable GPIO as v2 sequences do
> not do this.
>
> So far we have been carrying the code to do this on BYT/CHT devices
> with a Crystal Cove PMIC in vlv_dsi.c, but as this really is a shortcoming
> of the VBT MIPI-sequences, intel_dsi_vbt.c is a better place for this,
> so move it there.
>
> This is a preparation patch for adding panel-enable and backlight-enable
> GPIO support for BYT devices where instead of the PMIC the SoC is used
> for backlight control.
>
> Signed-off-by: Hans de Goede <hdegoede@...hat.com>

The kernel looks prettier after than before and it seems correct so:
Reviewed-by: Linus Walleij <linus.walleij@...aro.org>

Yours,
Linus Walleij