Messages in this thread | | | Date | Tue, 6 Oct 2015 17:25:27 +0200 | From | Pavel Machek <> | Subject | Re: [PATCH v4 00/26] ARM: pxa: magician: Rework HTC Magician support |
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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
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