| Commit message (Collapse) | Author | Age | Files | Lines |
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Allow the footbridge clock rate to be specified on the kernel command
line. This allows us to work-around broken Personal Server firmware.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6 into devel
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PXA27x and later processors support overlay1 and overlay2 on-top of the
base framebuffer (although under-neath the base is also possible). They
support palette and no-palette RGB formats, as well as YUV formats (only
available on overlay2). These overlays have dedicated DMA channels and
behave in a similar way as a framebuffer.
This heavily simplified and re-structured work is based on the original
pxafb_overlay.c (which is pending for mainline merge for a long time).
The major problems with this pxafb_overlay.c are (if you are interested
in the history):
1. heavily redundant (the control logics for overlay1 and overlay2 are
actually identical except for some small operations, which are now
abstracted into a 'pxafb_layer_ops' structure)
2. a lot of useless and un-tested code (two workarounds which are now
fixed on mature silicons)
3. cursorfb is actually useless, hardware cursor should not be used
this way, and the code was actually un-tested for a long time.
The code in this patch should be self-explanatory, I tried to add minimum
comments. As said, this is basically simplified, there are several things
still on the pending list:
1. palette mode is un-supported and un-tested (although re-using the
palette code of the base framebuffer is actually very easy now with
previous clean-up patches)
2. fb_pan_display for overlay(s) is un-supported
3. the base framebuffer can actually be abstracted by 'pxafb_layer' as
well, which will help further re-use of the code and keep a better
and consistent structure. (This is the reason I named it 'pxafb_layer'
instead of 'pxafb_overlay' or something alike)
See Documentation/fb/pxafb.txt for additional usage information.
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Cc: Rodolfo Giometti <giometti@linux.it>
Signed-off-by: Eric Miao <ycmiao@ycmiao-hp520.(none)>
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Signed-off-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Eric Miao <ycmiao@ycmiao-hp520.(none)>
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1. introduce var_to_depth() to calculate the color depth including the
transparency bit
2. the conversion from 'fb_var_screeninfo' to LCCR3 BPP bits can be re-
used by overlays (in OVLxC1), thus an individual pxafb_var_to_bpp()
has been separated out.
3. pxafb_setmode() should really set the color bitfields correctly at
begining, introduce a pxafb_set_pixfmt() for this
4. allow user apps to specify color formats within fb_var_screeninfo,
and checking of this in pxafb_check_var() has been simplified as
below:
a) pxafb_var_to_bpp() should pass - which means a basically correct
bits_per_pixel and color depth setting
b) the RGBT bitfields are then forced into supported values by
pxafb_set_pixfmt()
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Eric Miao <ycmiao@ycmiao-hp520.(none)>
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Add the palette format support for LCCR4_PAL_FOR_3, and fix the
issue of LCCR4 being never assigned.
Also remove the useless pxafb_set_truecolor().
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Eric Miao <ycmiao@ycmiao-hp520.(none)>
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dma branching is enabled by extending the current setup_frame_dma()
function to allow a 2nd set of frame/palette dma descriptors to be
used.
As a result, pxafb_dma_buff.dma_desc[], pxafb_dma_buff.pal_desc[]
and pxafb_info.fdadr[] are doubled.
This allows maximum re-use of the current dma setup code, although
the pxafb_info.fdadr[xx] for FBRx register values looks a bit odd.
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Eric Miao <ycmiao@ycmiao-hp520.(none)>
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Note the var->yres_virtual is only re-calculated from the fix.smem_len
when text mode acceleration is enabled (which is default), this is due
to the issue as Russell suggested below:
Previous experience of doing this with the X server and acornfb is that
it causes all sorts of problems - it seems to force the X server into
assuming that the framebuffer should be panned no matter what settings
you ask it for.
The recommended workaround (implemented in acornfb) is to only do these
kinds of adjustments if text mode acceleration is enabled. IIRC, the X
server should be disabling text mode acceleration when it maps the
framebuffer. I seem to remember that there are X servers which forget
to do that though.
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Eric Miao <ycmiao@ycmiao-hp520.(none)>
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The amount of video memory size is decided according to the following
order:
1. <xres> x <yres> x <bits_per_pixel> by default, which is the backward
compatible way
2. size specified in platform data
3. size specified in module parameter 'options' string or specified in
kernel boot command line (see updated Documentation/fb/pxafb.txt)
And now since the memory is allocated from system memory, the pxafb_mmap
can be removed and the default fb_mmap() should be working all right.
Also, since we now have introduced the 'struct pxafb_dma_buff' for DMA
descriptors and palettes, the allocation can be separated cleanly.
NOTE: the LCD DMA actually supports chained transfer (i.e. page-based
transfers), to simplify the logic and keep the performance (with less
TLB misses when accessing from memory mapped user space), the memory
is allocated by alloc_pages_*() to ensures it's physical contiguous.
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Eric Miao <ycmiao@ycmiao-hp520.(none)>
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Signed-off-by: Eric Miao <eric.miao@marvell.com>
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See description of commit:
[ARM] rtc-sa1100: don't assume CLOCK_TICK_RATE to be a constant
for additional information.
Signed-off-by: Eric Miao <eric.miao@marvell.com>
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As Nicolas and Russell pointed out, CLOCK_TICK_RATE is no more
a constant on PXA when multiple processors and platforms are
selected, change TIMER_FREQ in rtc-sa1100.c into a variable.
Since the code to decide the clock tick rate is re-used from
timer.c, introduce a common get_clock_tick_rate() for this.
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Acked-by: Nicolas Pitre <nico@marvell.com>
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Signed-off-by: Eric Miao <eric.miao@marvell.com>
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Signed-off-by: Ian Molton <ian@mnementh.co.uk>
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The patch is for w90p910 platform default config.
Signed-off-by: Wan ZongShun <mcuos.com@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6 into devel
Conflicts:
arch/arm/mach-pxa/am200epd.c
arch/arm/mach-pxa/ezx.c
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Signed-off-by: Eric Miao <eric.miao@marvell.com>
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Signed-off-by: Eric Miao <eric.miao@marvell.com>
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Changes made as suggested by Eric Miao (including fix to map_io
silly mistake!).
Originally designed by Intel, now sold by Crossbow (www.xbow.com).
Very little actually on board. The patch includes sensors and
similar as found on commonly occurring daughter boards.
Some of the drivers are not in mainline as yet as they are either
part of the IIO subsystem or need a lot of work before submission.
What is the position wrt to putting them in i2c board configs etc?
Support for these boards has been maintained outside the kernel
for a long time, but now that there is a good da9030 pmic driver
available the last major hurdle no longer exists.
All comments welcomed.
The Imote2's big brother (stargate2) will follow once any problems
with this one have been cleaned up and a few bits and bobs have
been added to the da903x driver. Hopefully the cc2420 driver will
get cleaned up and submitted in the not too distant future as
well.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Eric Miao <eric.miao@marvell.com>
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I2C platform data setups.
Signed-off-by: Daniel Ribeiro <drwyrm@gmail.com>
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Eric Miao <eric.miao@marvell.com>
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Matrix and single key setups for all phones.
Signed-off-by: Daniel Ribeiro <drwyrm@gmail.com>
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Antonio Ospite <ospite@studenti.unina.it>
Signed-off-by: Eric Miao <eric.miao@marvell.com>
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Pin configs for different generations and phones.
Signed-off-by: Daniel Ribeiro <drwyrm@gmail.com>
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Eric Miao <eric.miao@marvell.com>
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Our bootloader now supports ATAGS_MEM
Signed-off-by: Daniel Ribeiro <drwyrm@gmail.com>
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Eric Miao <eric.miao@marvell.com>
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Signed-off-by: Jaya Kumar <jayakumar.lkml@gmail.com>
Cc: Andre Puschmann <andre.puschmann@imms.de>
Signed-off-by: Eric Miao <eric.miao@marvell.com>
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fbi->state change shall really be protected by fbi->ctrlr_lock, where
the change is sheltered. There is a possibility that pxafb_smart_thread
will start update the LCD panel when fbi->state == C_ENABLE, while
all other initialization isn't done.
Signed-off-by: Eric Miao <eric.miao@marvell.com>
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Some smart panel requires a delay between command sequences, while PXA
LCD controller didn't provide such one, let's emulate this by software.
A software delay marker can be inserted into the command sequence, once
pxafb_smart_queue() detects this, it flushes the previous commands and
delay for a specified number of milliseconds.
Signed-off-by: Eric Miao <eric.miao@marvell.com>
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For smart panels (LCD panel with internal framebuffer), the following
LCCR3 register bits have different meanings than the parallel one:
LCCR3_PCP - controls the L_PCLK_WR polarity
LCCR3_HSP - controls the L_LCLK_A0 polarity
LCCR3_VSP - controls the L_FCLK_RD polarity
To keep minimum change to the original parallel timing, the .lcd_conn
flags and 'pxafb_mode_info.sync' are re-used to reflect this:
LCD_PCLK_EDGE_{RISE,FALL} - configures LCCR3_PCP
sync & FB_SYNC_{HOR,VERT}_HIGH_ACT - configures LCCR3_{HSP,VSP}
Signed-off-by: Eric Miao <eric.miao@marvell.com>
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Group smart panel related code in a more compact fasion, avoid abused
usage of #ifdef .. #endif.
Also fix the incorrect condition in pxafb_smart_init() to decide if it
is a smart panel or not. (should be '&' instead of '|')
Signed-off-by: Eric Miao <eric.miao@marvell.com>
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platform should now initialize the pin usage for the LCD controller
to correctly work.
Signed-off-by: Eric Miao <eric.miao@marvell.com>
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Signed-off-by: Eric Miao <eric.miao@marvell.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Ian Molton <spyro@f2s.com>
Cc: pHilipp Zabel <philipp.zabel@gmail.com>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Cc: Juergen Schindele <linux@schindele.name>
Acked-by: Stefan Schmidt <stefan@datenfreihafen.org>
Acked-by: Marc Zyngier <maz@misterjones.org>
Acked-by: Mike Rapoport <mike@compulab.co.il>
Acked-by: Jaya Kumar <jayakumar.lkml@gmail.com>
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Signed-off-by: Eric Miao <eric.miao@marvell.com>
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This avoids non-Samsung builds being asked about Samsung specific
configuration options.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
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Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
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Split off Orion GPIO IRQ handling code into plat-orion/.
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
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Split off Orion GPIO handling code into plat-orion/, and add
support for multiple sets of (32) GPIO pins.
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
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Thomas claims that irqs are disabled when set_next_event is called. But
David and Remy claim they saw irqs being enabled here. As both sides
don't seem to have time to investigate here, start with a warning that
might trigger if the problem still exists.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-By: David Brownell <dbrownell@users.sourceforge.net>
Cc: Bill Gatliff <bgat@billgatliff.com>
Acked-By: Remy Bohmer <linux@bohmer.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
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It's either
bool
default y
or
def_bool y
but not a mixture of both.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
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Since May 8 2007 the symbols RTC_INTF_PROC, RTC_INTF_SYSFS and
RTC_INTF_DEV are not tristate anymore. This fixes the following
warnings:
arch/arm/configs/picotux200_defconfig:1072:warning: symbol value 'm' invalid for RTC_INTF_SYSFS
arch/arm/configs/picotux200_defconfig:1073:warning: symbol value 'm' invalid for RTC_INTF_PROC
arch/arm/configs/picotux200_defconfig:1074:warning: symbol value 'm' invalid for RTC_INTF_DEV
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Robert Schwebel <r.schwebel@pengutronix.de>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Simon Richter <Simon.Richter@kleinhenz.com>
Cc: Andrew Victor <linux@maxim.org.za>
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... not kstop_machine. Add a note that irqs are disabled.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
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Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
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the fixed warnings are:
arch/arm/mach-netx/xc.c: In function ‘xc_request_firmware’:
arch/arm/mach-netx/xc.c:152: warning: assignment discards qualifiers from pointer target type
arch/arm/mach-netx/xc.c:162: warning: assignment discards qualifiers from pointer target type
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
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This is based on a patch by Luotao Fu <lfu@pengutronix.de>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Luotao Fu <lfu@pengutronix.de>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
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the needed infrastructure is already in place, only selecting
GENERIC_TIME was missing.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
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instead of hardcoding the same value each time.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
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To prevent cluttering the next patches with noop noise, do the cleanup
in this separate patch:
- use tab to indent
- break comments before column 80
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
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