From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753641AbbJFPZl (ORCPT ); Tue, 6 Oct 2015 11:25:41 -0400 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:59810 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753619AbbJFPZi (ORCPT ); Tue, 6 Oct 2015 11:25:38 -0400 Date: Tue, 6 Oct 2015 17:25:27 +0200 From: Pavel Machek To: Petr Cvek Cc: robert.jarzmik@free.fr, philipp.zabel@gmail.com, daniel@zonque.org, haojian.zhuang@gmail.com, linux@arm.linux.org.uk, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, pali.rohar@gmail.com, sre@debian.org, sre@ring0.de, ivo.g.dimitrov.75@gmail.com, patrikbachan@gmail.com Subject: Re: [PATCH v4 00/26] ARM: pxa: magician: Rework HTC Magician support Message-ID: <20151006152527.GA32352@xo-6d-61-c0.localdomain> References: <5609AB45.9030009@tul.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5609AB45.9030009@tul.cz> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi! > This patchset will clean, fix, optimize and add multiple devices, > which can be found on the HTC Magician machine. > > Platform data for the pasic3-leds driver has been removed, as this > driver do not exist in the vanilla. And it is expected to be recreated > in the future with an incompatible platform data structure. > > Default setting of the Samsung LCD pixel clock period has been > increased, so resulting frequency is 50Hz (original 117Hz). Period > can be possibly incresed even more. At this moment there is no video > player with IWMMXT support and software only versions cannot make it > to 30fps. Frequency decreasing has a good impact to memory troughtput > as LCD controller does not do as many memory bursts as at original > speed. This was verified with the lat_mem_rd from the lmbench3. > > The Omnivision OV9640 camera has a problem with running on 400kHz > of the I2C clock. It seems it freezes the bus until PXA I2C driver > reload. Datasheet says it OK on 400kHz though. There may be some > compatibility bug in the PXA I2C driver as Omnivision cameras often > uses special I2C protocol (SCCB). > > Using the CPU frequency scaling (with help of an MAX1587A regulator) > sometimes causes an SoC failure. It is probably related to the PXA27x > erratum E37, E36, E80 or E89. Infreqent changes mostly works. Nice to see work done on a cellphone... Seeing all the GPIO name changes... would it be possible / make sense to make to device tree one day? What userspace do you run on the phone? Can it do calls? [I have N900 here, kernel is in pretty good state, and I have Mate desktop running with python application for calls, but...] Thanks (a pozdrav :-), Pavel > STUART removal is a prepare for: > > net: irda: pxaficp_ir: dmaengine conversion > > Function was tested on the board_id 0x3a version (specifically on > the T-Mobile MDA compact). > > Changes from v3: > * Nontrivial rebase for indentation fixup (EGPIO and PXA UDC) > > Petr Cvek (26): > ARM: pxa: magician: Fix indentation in machine files > ARM: pxa: magician: Change comments to be more informative > ARM: pxa: magician: Print more specific error message for global > GPIOs > ARM: pxa: magician: Optimize debug messages for LCD power > ARM: pxa: magician: Change description of LCD power GPIO > ARM: pxa: magician: Add new discovered EGPIO pins > ARM: pxa: magician: Fix HTC Magician pin mux definitions > ARM: pxa: magician: Rename abstract LCD GPIOs > ARM: pxa: magician: Optimize powerup delays for Samsung LCD > ARM: pxa: magician: Optimize Samsung LCD refresh to 50Hz > ARM: pxa: magician: Optimize EGPIO initial values > ARM: pxa: magician: Rename charger cable detection EGPIOs > ARM: pxa: magician: Fix and add charging detection functions > ARM: pxa: magician: Fix platform data for both PXA27x I2C controllers > ARM: pxa: magician: Fix redundant GPIO request for pxaficp_ir > ARM: pxa: magician: Fix support for Intel Strata NOR Flash > ARM: pxa: magician: Fix wrongly enabled USB host ports > ARM: pxa: magician: Add support for ADS7846 > ARM: pxa: magician: Add support for Omnivision OV9640 camera > ARM: pxa: magician: Add support for MAX1587A Vcore regulator > ARM: pxa: magician: Add support for PXA27x UDC > ARM: pxa: magician: Remove pdata for pasic3-leds > ARM: pxa: magician: Remove definition of the STUART port > ARM: pxa: magician: Add debug message for backlight brightness > function > ARM: pxa: magician: Add missing regulator for PWM backlight > ARM: pxa: magician: Move platform_add_devices() to the end of > magician_init() > > arch/arm/mach-pxa/include/mach/magician.h | 70 ++- > arch/arm/mach-pxa/magician.c | 907 +++++++++++++++++++++--------- > 2 files changed, 678 insertions(+), 299 deletions(-) > > -- > 1.7.12.1 > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html