lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Tue, 3 Feb 2015 11:49:56 -0800 From: Dmitry Torokhov <dmitry.torokhov@...il.com> To: Vignesh R <vigneshr@...com> Cc: Jonathan Cameron <jic23@...nel.org>, Hartmut Knaack <knaack.h@....de>, Lee Jones <lee.jones@...aro.org>, Sebastian Andrzej Siewior <bigeasy@...utronix.de>, Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>, Mark Rutland <mark.rutland@....com>, Ian Campbell <ijc+devicetree@...lion.org.uk>, Kumar Gala <galak@...eaurora.org>, Benoit Cousson <bcousson@...libre.com>, Tony Lindgren <tony@...mide.com>, Russell King <linux@....linux.org.uk>, Lars-Peter Clausen <lars@...afoo.de>, Peter Meerwald <pmeerw@...erw.net>, Samuel Ortiz <sameo@...ux.intel.com>, Brad Griffis <bgriffis@...com>, Paul Gortmaker <paul.gortmaker@...driver.com>, Sanjeev Sharma <sanjeev_sharma@...tor.com>, Jan Kardell <jan.kardell@...liq.com>, Felipe Balbi <balbi@...com>, Wolfram Sang <wsa@...-dreams.de>, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, linux-omap@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, linux-iio@...r.kernel.org, linux-input@...r.kernel.org Subject: Re: [PATCH v6 2/6] input: touchscreen: ti_am335x_tsc: Remove udelay in interrupt handler On Fri, Jan 30, 2015 at 10:56:28AM +0530, Vignesh R wrote: > > > On Wednesday 07 January 2015 11:19 AM, Vignesh R wrote: > > From: Brad Griffis <bgriffis@...com> > > > > TSC interrupt handler had udelay to avoid reporting of false pen-up > > interrupt to user space. This patch implements workaround suggesting in > > Advisory 1.0.31 of silicon errata for am335x, thus eliminating udelay > > and touchscreen lag. This also improves performance of touchscreen and > > eliminates sudden jump of cursor at touch release. > > > > IDLECONFIG and CHARGECONFIG registers are to be configured > > with same values in order to eliminate false pen-up events. This > > workaround may result in false pen-down to be detected, hence considerable > > charge step delay needs to be added. The charge delay is set to 0xB000 > > (in terms of ADC clock cycles) by default. > > > > TSC steps are disabled at the end of every sampling cycle and EOS bit is > > set. Once the EOS bit is set, the TSC steps need to be re-enabled to begin > > next sampling cycle. > > > > Signed-off-by: Brad Griffis <bgriffis@...com> > > [vigneshr@...com: Ported the patch from v3.12 to v3.19rc1] > > > > Signed-off-by: Vignesh R <vigneshr@...com> > > --- > > Ping... Can somebody pick this patch series if there are no more comments?? Yes, I picked up everything but patch #3 as I assume Lee will merge it through MFD tree. Thanks. -- Dmitry -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists