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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Alexander Usyskin <alexander.usyskin@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>,
	Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
	Rodrigo Vivi <rodrigo.vivi@intel.com>,
	David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
	Tomas Winkler <tomas.winkler@intel.com>,
	Vitaly Lubart <vitaly.lubart@intel.com>,
	intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/5] drm/i915/gsc: add gsc as a mei platform device
Date: Wed, 15 Dec 2021 15:07:14 +0100	[thread overview]
Message-ID: <Ybn2kmcJ4OOyaHhI@kroah.com> (raw)
In-Reply-To: <20211215135622.1060229-2-alexander.usyskin@intel.com>

On Wed, Dec 15, 2021 at 03:56:18PM +0200, Alexander Usyskin wrote:
> From: Tomas Winkler <tomas.winkler@intel.com>
> 
> GSC is a graphics system controller, based on CSE, it provides
> a chassis controller for graphics discrete cards, as well as it
> supports media protection (HDCP 2.2) on selected devices.
> 
> There are two MEI interfaces in GSC HECI1, the one that provides media
> protection and HECI2 the one that provides firmware interface.
> 
> Both interfaces are on the BAR0 at offsets 0x00258000 and 0x00259000.
> GSC is a GT Engine (class 4: instance 6). HECI1 interrupt is signaled
> via bit 15 and HECI2 via bit 14 in the interrupt register.
> 
> This patch exports GSC as platform device for mei driver to bind to.

This is NOT a platform device.  It is part of a PCI device, which is NOT
a platform device.  I keep having to say this.

Please use the auxbus interface instead if you want to split a PCI
device up into sub-child-devices and bind drivers to them.  That is what
it was created for, and this SHOULD have been caught by the other Intel
reviewers who signed-off on this patch.

so no, I will not ack this, it is not ok at all, sorry.

greg k-h

  reply	other threads:[~2021-12-15 14:07 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-15 13:56 [PATCH 0/5] Add driver for GSC controller Alexander Usyskin
2021-12-15 13:56 ` [PATCH 1/5] drm/i915/gsc: add gsc as a mei platform device Alexander Usyskin
2021-12-15 14:07   ` Greg Kroah-Hartman [this message]
2021-12-15 13:56 ` [PATCH 2/5] mei: add gsc driver Alexander Usyskin
2021-12-15 13:56 ` [PATCH 3/5] mei: gsc: setup char driver alive in spite of firmware handshake failure Alexander Usyskin
2021-12-15 13:56 ` [PATCH 4/5] mei: gsc: add runtime pm handlers Alexander Usyskin
2021-12-15 13:56 ` [PATCH 5/5] mei: gsc: retrieve the firmware version Alexander Usyskin

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