From mboxrd@z Thu Jan  1 00:00:00 1970
From: Eric Anholt <eric@anholt.net>
Subject: Re: [PATCH v3 02/23] drm: remove drm_vblank_no_hw_counter assignment
 from driver code
Date: Wed, 08 Feb 2017 11:58:18 -0800
Message-ID: <87fujoe9ph.fsf@eliezer.anholt.net>
References: <1486458995-31018-1-git-send-email-shawnguo@kernel.org>
 <1486458995-31018-3-git-send-email-shawnguo@kernel.org>
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To: Shawn Guo <shawnguo@kernel.org>, Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Neil Armstrong <narmstrong@baylibre.com>, Liviu Dudau <liviu.dudau@arm.com>, Laurent Pinchart <laurent.pinchart@ideasonboard.com>, Daniel Vetter <daniel.vetter@intel.com>, Marek Vasut <marex@denx.de>, Alexey Brodkin <abrodkin@synopsys.com>, Russell King <linux@armlinux.org.uk>, Xinliang Liu <z.liuxinliang@hisilicon.com>, Tomi Valkeinen <tomi.valkeinen@ti.com>, Mali DP Maintainers <malidp@foss.arm.com>, Ben Skeggs <bskeggs@redhat.com>, Jyri Sarha <jsarha@ti.com>, dri-devel@lists.freedesktop.org, Maxime Ripard <maxime.ripard@free-electrons.com>
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Shawn Guo <shawnguo@kernel.org> writes:

> From: Shawn Guo <shawn.guo@linaro.org>
>
> Core code already makes drm_driver.get_vblank_counter hook optional by
> letting drm_vblank_no_hw_counter be the default implementation for the
> function hook.  So the drm_vblank_no_hw_counter assignment in the driver
> code becomes redundant and can be removed now.

Thanks.  Missing this hook was actually a problem in vc4 for a while, so
it's nice to have sensible defaults.  For vc4:

Acked-by: Eric Anholt <eric@anholt.net>

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