From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wolfram Sang Subject: Re: [PATCH] i2c: omap: Clear ARDY bit twice Date: Thu, 10 Oct 2013 09:55:31 +0200 Message-ID: <20131010075531.GB2638@katana> References: <1381142519-29382-1-git-send-email-taras.kondratiuk@linaro.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="uZ3hkaAS1mZxFaxD" Return-path: Content-Disposition: inline In-Reply-To: <1381142519-29382-1-git-send-email-taras.kondratiuk-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> Sender: linux-i2c-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Taras Kondratiuk Cc: linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, patches-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, steve.mcintyre-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, Grygorii Strashko , Felipe Balbi , Richard woodruff , Tony Lindgren , linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-i2c@vger.kernel.org --uZ3hkaAS1mZxFaxD Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Oct 07, 2013 at 01:41:59PM +0300, Taras Kondratiuk wrote: > Initially commit cb527ede1bf6ff2008a025606f25344b8ed7b4ac > "i2c-omap: Double clear of ARDY status in IRQ handler" > added a workaround for undocumented errata ProDB0017052. > But then commit 1d7afc95946487945cc7f5019b41255b72224b70 > "i2c: omap: ack IRQ in parts" refactored code and missed > one of ARDY clearings. So current code violates errata. > It causes often i2c bus timeouts on my Pandaboard. >=20 > This patch adds a second clearing in place. >=20 > Signed-off-by: Grygorii Strashko > Signed-off-by: Taras Kondratiuk Applied to for-current with stable tag, thanks! --uZ3hkaAS1mZxFaxD Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.14 (GNU/Linux) iQIcBAEBAgAGBQJSVl1zAAoJEBQN5MwUoCm2VwAP+gJ4HFNH6QzwEVIyqFU1yT0r KVn6VA8isQ/DCXfREswOGezJI9pwKSdxpM3yQf5RXKVhazU6A/yTrh2FOj9wYVat x+Xl7NY6/wptc2cU1kHve4IVyt1x/UcBVBpMI+WRV76ayEiP1O94SwRlIhDd/KnV Bi9q/hbrHGLeKVMPH++buzOUJ/wuzHgGy1Xcbzq8t5zoOhy8/jWiJIcyT+hLtDbO BlSdaMnbpq6bMJonb6fx9egxGJR1LFPC8t7c2AQ7KZ1WukddrChcNqo6dicnIJJD Gv3s4HKC4kE8oJpYTGcEluh75LEn3IwyLljQqlzfLY5VitYgaRnnOrCxyohaG2ga E1wJn9DsKEDt7D38VxNBeFLSXm5Rq1bIvpcdUbNyOEZZHx0tCWHiROak1CLNrWWa 9F4pL2krPNi1jCyF8VaDKapELXWObDyFMZkt4Oji246dFaWzF1Xx5MSz4VwLuxw0 Tt5QIaJto4bIkgo4NTaLH6kmkT0nf/Kq4rHVnAbYrNn4crp8bvH4QyZtVQthPkbX ljenEl8BSpQEDuZceMY0KSE5GYnHWQXlOcAtP+i9t0KnjcLKZEVr8+vrYVCvXD0D x9np9d6vcM4muyjgpojXyya+dhIGSsM32YcHb5jrXKgJl71ZqOhHRcqH2iCeHcc0 8GNmHVBD3P6BNZHqzVpe =aY2K -----END PGP SIGNATURE----- --uZ3hkaAS1mZxFaxD--