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[46.91.229.123]) by smtp.gmail.com with ESMTPSA id b23sm1506720wmb.26.2020.05.06.09.34.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 06 May 2020 09:34:48 -0700 (PDT) Date: Wed, 6 May 2020 18:34:47 +0200 From: Thierry Reding To: Dmitry Osipenko Cc: Jonathan Hunter , Peter De Schrijver , "Rafael J. Wysocki" , Daniel Lezcano , =?utf-8?B?TWljaGHFgiBNaXJvc8WCYXc=?= , Jasper Korten , David Heidelberg , Peter Geis , linux-pm@vger.kernel.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v1 2/3] firmware: trusted_foundations: Different way of L2 cache enabling after LP2 suspend Message-ID: <20200506163447.GC2723057@ulmo> References: <20200324224335.5825-1-digetx@gmail.com> <20200324224335.5825-3-digetx@gmail.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="lMM8JwqTlfDpEaS6" Content-Disposition: inline In-Reply-To: <20200324224335.5825-3-digetx@gmail.com> User-Agent: Mutt/1.13.1 (2019-12-14) Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org --lMM8JwqTlfDpEaS6 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Mar 25, 2020 at 01:43:34AM +0300, Dmitry Osipenko wrote: > ASUS TF300T device may not work properly if firmware is asked to fully > re-initialize L2 cache after resume from LP2 suspend. The downstream > kernel of TF300T uses different opcode to enable cache after resuming > from LP2, this opcode also works fine on Nexus 7 and Ouya devices. > Supposedly, this may be needed by an older firmware versions. >=20 > Reported-by: Micha=C5=82 Miros=C5=82aw > Tested-by: Micha=C5=82 Miros=C5=82aw > Tested-by: Jasper Korten > Tested-by: David Heidelberg > Tested-by: Peter Geis > Signed-off-by: Dmitry Osipenko > --- > arch/arm/mach-tegra/pm.c | 4 ++++ > drivers/firmware/trusted_foundations.c | 21 ++++++++++++++++++-- > include/linux/firmware/trusted_foundations.h | 1 + > 3 files changed, 24 insertions(+), 2 deletions(-) I split this up and applied it to for-5.8/firmware and for-5.8/arm/core, respectively. 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