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[46.91.239.54]) by smtp.gmail.com with ESMTPSA id y19sm844637wmc.21.2019.06.19.01.19.21 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Wed, 19 Jun 2019 01:19:21 -0700 (PDT) Date: Wed, 19 Jun 2019 10:19:20 +0200 From: Thierry Reding To: Dmitry Osipenko Cc: Daniel Lezcano , Jonathan Hunter , Peter De Schrijver , linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v3 8/8] clocksource/drivers/tegra: Set up maximum-ticks limit properly Message-ID: <20190619081920.GI3187@ulmo> References: <20190618140358.13148-1-digetx@gmail.com> <20190618140358.13148-9-digetx@gmail.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="nEsDIrWrg+hrB7l1" Content-Disposition: inline In-Reply-To: <20190618140358.13148-9-digetx@gmail.com> User-Agent: Mutt/1.11.4 (2019-03-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --nEsDIrWrg+hrB7l1 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Jun 18, 2019 at 05:03:58PM +0300, Dmitry Osipenko wrote: > Tegra's timer has 29 bits for the counter and for the "load" register > which sets counter to a load-value. The counter's value is lower than > the actual value by 1 because it starts to decrement after one tick, > hence the maximum number of ticks that hardware can handle equals to > 29 bits + 1. >=20 > Signed-off-by: Dmitry Osipenko > --- > drivers/clocksource/timer-tegra.c | 10 +++++++++- > 1 file changed, 9 insertions(+), 1 deletion(-) Acked-by: Thierry Reding --nEsDIrWrg+hrB7l1 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEiOrDCAFJzPfAjcif3SOs138+s6EFAl0J8AgACgkQ3SOs138+ s6EPEBAAn10gbUkVsBHDIrBFkwk3KyI/V6bofbaJQUM7laLFxcPxtchlHGg815Mf fPIMSvscd6p0ASJwpG7FuIwHT0Wn16ZlwmKt+txnr96lne/hGy4TCG2U4ajG7uho Oz4aRFpahRRB7yW9jBb4kfr7AKNAMFDeGEAcT8L+e1f7tfgpqT9+ZOImh6t9yfWs xfeH0EYBDCwz4by5qz4TLJ575rgbFycX8GADCjA0VL2FIbnU3G9c34UsLIO6OMPn EV5O+MGIjzfadAD0IdVkX1nURSYya1SvgCp167/dnzM6IBaBzQTfSJ8tMtEBCJJN JockM2EqDiw8EytGKfWABIgCyKDwFT5gA2Ci4JTfr865Cufl5EwKJNpxQ52jyJoF ZX3vnvsDx7pkiusralho+1HsP4J6D9fqULD6NmNNN7yzGHvMNt3o48B2MpHh3J5k ygnXuxYMRKNP4kvBMhgXMDso+lWlt3iMfUysOvI0+RR7hQUCYujEJCDkNp19awf/ OtV5+xplrPqCqknrJ6t5hsSPqaX6Z2IJ7FCesK6XY9K0YywqzVwe/+HH0ktsRN6I 9O7r2P5yyBDtz0TGn8XkQoZ7BbtqUY629/xyF4vfYdpiUtMX3hmrh2Zbz+HEM7rY ONbzVV/EJj40JmRJi4glPLIC2T2yEe3QqD1PqiQxREm4kBIpwEU= =4r44 -----END PGP SIGNATURE----- --nEsDIrWrg+hrB7l1--