This moves the Versatile-specific helper code and panel database
down into the drivers/video folder next to the CLCD driver
itself, preserving the config symbol but also moving the header
to platform data.
This is necessary to rid the Integrator of this final <plat/*>
inclusion dependency and get us one less user of the
plat-versatile folder.
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: linux-fbdev@vger.kernel.org
Cc: Russell King <linux@arm.linux.org.uk>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This reverts commit e1edf18b20.
This patch was a misguided attempt at fixing offb for LE ppc64
kernels on BE qemu but is just wrong ... it breaks real LE/LE
setups, LE with real HW, and existing mixed endian systems
that did the fight thing with the appropriate device-tree
property. Bad reviewing on my part, sorry.
The right fix is to either make qemu change its endian when
the guest changes endian (working on that) or to use the
existing foreign endian support.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: <stable@vger.kernel.org> [v3.13+]
---
re-add the perm check (we unified the module param and sysfs checks, but
the module ones were stronger so we weakened them temporarily).
Param parsing gets documented, and also "--" now forces args to be
handed to init (and ignored by the kernel).
Module NX/RO protections get tightened: we now set them before calling
parse_args().
Cheers,
Rusty.
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Merge tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux
Pull module updates from Rusty Russell:
"Most of this is cleaning up various driver sysfs permissions so we can
re-add the perm check (we unified the module param and sysfs checks,
but the module ones were stronger so we weakened them temporarily).
Param parsing gets documented, and also "--" now forces args to be
handed to init (and ignored by the kernel).
Module NX/RO protections get tightened: we now set them before calling
parse_args()"
* tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
module: set nx before marking module MODULE_STATE_COMING.
samples/kobject/: avoid world-writable sysfs files.
drivers/hid/hid-picolcd_fb: avoid world-writable sysfs files.
drivers/staging/speakup/: avoid world-writable sysfs files.
drivers/regulator/virtual: avoid world-writable sysfs files.
drivers/scsi/pm8001/pm8001_ctl.c: avoid world-writable sysfs files.
drivers/hid/hid-lg4ff.c: avoid world-writable sysfs files.
drivers/video/fbdev/sm501fb.c: avoid world-writable sysfs files.
drivers/mtd/devices/docg3.c: avoid world-writable sysfs files.
speakup: fix incorrect perms on speakup_acntsa.c
cpumask.h: silence warning with -Wsign-compare
Documentation: Update kernel-parameters.tx
param: hand arguments after -- straight to init
modpost: Fix resource leak in read_dump()
* DT support for the panel drivers that were still missing it
* TI AM43xx support
* TI OMAP5 support
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Merge tag 'fbdev-omap-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux into next
Pull omap fbdev changes from Tomi Valkeinen:
- DT support for the panel drivers that were still missing it
- TI AM43xx support
- TI OMAP5 support
* tag 'fbdev-omap-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (46 commits)
OMAPDSS: move 'compatible' converter to omapdss driver
OMAPDSS: HDMI: fix devm_ioremap_resource error checks
OMAPDSS: HDMI: remove unused defines
OMAPDSS: HDMI: cleanup WP ioremaps
OMAPDSS: panel NEC-NL8048HL11 DT support
Doc/DT: Add DT binding documentation for TPO td043mtea1 panel
OMAPDSS: Panel TPO-TD043MTEA1 DT support
Doc/DT: Add DT binding documentation for SHARP LS037V7DW01
OMAPDSS: panel sharp-ls037v7dw01 DT support
OMAPDSS: panel-sharp-ls037v7dw01: update to use gpiod
Doc/DT: Add binding doc for lgphilips,lb035q02.txt
OMAPDSS: panel-lgphilips-lb035q02: Add DT support
OMAPDSS: panel-lgphilips-lb035q02: use gpiod for enable gpio
OMAPDSS: hdmi5_core: Fix compilation with OMAP5_DSS_HDMI_AUDIO
OMAPDSS: panel-dpi: enable-gpio
OMAPDSS: Fix writes to DISPC_POL_FREQ
Doc/DT: Add OMAP5 DSS DT bindings
OMAPDSS: HDMI: cleanup ioremaps
OMAPDSS: HDMI: Add OMAP5 HDMI support
OMAPDSS: HDMI: PLL changes for OMAP5
...
Mainly fixes and small improvements. The biggest change seems to be backlight
control support for mx3fb.
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Merge tag 'fbdev-main-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux into next
Pull main fbdev changes from Tomi Valkeinen:
"Mainly fixes and small improvements. The biggest change seems to be
backlight control support for mx3fb"
* tag 'fbdev-main-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (31 commits)
drivers/video/fbdev/fb-puv3.c: Add header files for function unifb_mmap
video: fbdev: s3fb.c: Fix for possible null pointer dereference
video: fbdev: grvga.c: Fix for possible null pointer dereference
matroxfb: perform a dummy read of M_STATUS
video: of: display_timing: fix default native-mode setting
video: delete unneeded call to platform_get_drvdata
video: mx3fb: Add backlight control support
video: omap: delete support for early fbmem allocation
video: of: display_timing: remove two unsafe error messages
fbdev: fbmem: remove positive test on unsigned values
fbcon: Fix memory leak in con2fb_release_oldinfo()
video: Kconfig: Add a dependency to the Goldfish framebuffer driver
video: exynos: Add a dependency to the menu
video: mx3fb: Use devm_kzalloc
video/nuc900: allow modular build
video: atmel needs FB_BACKLIGHT
video: export fb_prepare_logo
video/mbx: fix building debugfs support
video/omap: fix modular build
video: clarify I2C dependencies
...
Move the panel/encoder driver compatible-string converter from
arch/arm/mach-omap2/display.c to omapdss driver. That is a more logical
place for it, as it's really an omapdss internal hack.
The code is rewritten to follow the video node graph, starting from
omapdss. This removes the need to have the device compatible-string
database.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The new atari_stram_alloc interface returns kernel virtual addresses
even if the kernel runs in FastRAM. These addresses are not
guaranteed to be identical with the physical addresses. Since ST-RAM
mappings have not been set up by mem_init, virt_to_phys() and its
cousin do not work and the atari_stram_to_phys() etc. helpers must
be used to determine physical addresses.
fb.fix->smem_start needs physical addresses, fb.par->screen_base
needs virtual addresses. Take care of the virt-to-phys conversion
both on fb init and par changes.
Signed-off-by: Michael Schmitz <schmitz@debian.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Commit 59b3d38a36 missed cleaning up the
hdmi_wp.c file.
Clean up hdmi_wp.c the same way as the others.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Function unifb_mmap calls functions which are defined in linux/mm.h
and asm/pgtable.h
The related error (for unicore32 with unicore32_defconfig):
CC drivers/video/fbdev/fb-puv3.o
drivers/video/fbdev/fb-puv3.c: In function 'unifb_mmap':
drivers/video/fbdev/fb-puv3.c:646: error: implicit declaration of
function 'vm_iomap_memory'
drivers/video/fbdev/fb-puv3.c:646: error: implicit declaration of
function 'pgprot_noncached'
Signed-off-by: Zhichuang Sun <sunzc522@gmail.com>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Jingoo Han <jg1.han@samsung.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Joe Perches <joe@perches.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: linux-fbdev@vger.kernel.org
Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
There is otherwise a risk of a possible null pointer dereference.
Was largely found by using a static code analysis program called cppcheck.
Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
There is otherwise a risk of a possible null pointer dereference.
Was largely found by using a static code analysis program called cppcheck.
Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
I had occasional screen corruption with the matrox framebuffer driver and
I found out that the reason for the corruption is that the hardware
blitter accesses the videoram while it is being written to.
The matrox driver has a macro WaitTillIdle() that should wait until the
blitter is idle, but it sometimes doesn't work. I added a dummy read
mga_inl(M_STATUS) to WaitTillIdle() to fix the problem. The dummy read
will flush the write buffer in the PCI chipset, and the next read of
M_STATUS will return the hardware status.
Since applying this patch, I had no screen corruption at all.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
We don't have any working boards using this panel right now, and the
panel driver looks odd compared to the panel specs. For example, the
panel spec does not mention any QVGA pin.
So, while this patch adds DT support to the driver, it's not really
supported and there are not bindings documentation for the panel until
someone can verify how the panel actually works.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Erik Gilling <konkers@android.com>
Using gpiod will make it easier to add device tree support
for this panel in the following patches.
Note that all the GPIOs for this panel are optional, any
of the the GPIOs could be configured with external pulls
instead of GPIOs, so let's not error out if GPIOs are not
found to make the panel more generic.
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Add DT support for panel-lgphilips-lb035q02.
We disable the use of the backlight_gpio as it should be handled via
backlight framework with DT boots.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Tested-by: Florian Vaussard <florian.vaussard@epfl.ch>
The new gpiod API supports automatic handling of active-high/active-low
with DT. To make it possible to use that when booting with DT, change
the driver's handling of the enable GPIO to use gpiod.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The enable gpio should be optional, but the driver returns an error if
it doesn't get the gpio.
So change the driver to accept -ENOENT error.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Tested-by: Joachim Eastwood <manabian@gmail.com>
Platform_get_drvdata is an accessor function, and has no purpose if its
result is not used.
The semantic patch that fixes this problem is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@@
identifier x;
type T;
@@
- T x = platform_get_drvdata(...);
... when != x
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This patch add backlight control support to allow dimming the backlight
using the internal PWM. Currently the brightness is set fixed to a
maximum of 255.
Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Commit 1e434f9318 (OMAPFB: remove early mem
alloc from old omapfb) deleted the support for early fbmem allocation
from the platform code, but some code still remains in the driver side.
Delete this code now, as it repotedly causes build issues on !MMU.
The patch was tested on Amstrad E3 and Nokia 770 and framebuffer
functionality is not affected.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
In line with practice for module parameters, we're adding a build-time
check that sysfs files aren't world-writable.
Cc: Vincent Sanders <vince@simtec.co.uk>
Cc: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
When omapdss writes to DISPC_POL_FREQ register, it always ORs the bits
with the current contents of the register, never clearing the old ones,
causing wrong signal polarity settings.
As we write all the bits in DISPC_POL_FREQ, we don't need to care about
the current contents of the register. So fix the issue by constructing
new register value from scratch.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Now that all the boards using OMAP HDMI are using DT boot, we can remove
the hacks for getting the ioresources with non-DT boot.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This adds a new driver to omapdss for OMAP5 HDMI. However, the new
driver uses common HDMI files which are shared with OMAP4 HDMI driver.
OMAP5 HDMI has a different HDMI core IP compared to OMAP4, but has very
similar PLL and PHY IPs which can be handled with common code.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Add a features struct to differentiate between the HDMI PLLs on OMAP4
and OMAP5. The OMAP5 PLL is more sensitive when it comes to locking. We
need to ensure that the DCO freq isn't too low for lower pixel clocks.
Modify the PLL computation slightly to ensure the HDMI PLL locks for lower
frequencies. This will be later replaced by a more complex computation
which makes sure all the PLL constraints are met.
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
OMAP5 HDMI PHY has some differences compared to OMAP4 HDMI PHY. This
patch creates a features struct which help the driver configure the PHY
based on what SoC it is.
Some of the features aren't currenlty used, but will come in use later.
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The HDMI core IP on OMAP5 has a wider address range for registers. The offsets
for the later registers can't fit into the u16 type currently used for hdmi
register read and write functions. Use u32 for offsets instead.
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
HDMI IRQ handling was moved into hdmi_phy.c when restructuring the HDMI
driver. While this worked fine, it's not correct.
The HDMI IRQ handling should be either in the hdmi_wp, or in the main
hdmi driver. This patch moves the handling to the main hdmi driver, as I
feel it's a more appropriate choice.
This move also requires changing the handling of the PHY power, as that
was partly handled in the IRQ handler. The PHY power is handled via the
WP module. An option would be to give HDMI PHY driver function pointers
that it could use to manage the PHY power, but as the PHY power is not
needed to access the PHY registers, the handling was also moved to the
main HDMI driver. This could be changed later if need be.
Note that there's slightly similar power issue with the PLL: the HDMI
PLLs power is also handled via the WP module. For now, the PLL power
handling is still done inside the PLL driver.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
We'll soon add support for OMAP5 HDMI, which uses some of the same files
as OMAP4 HDMI does.
This patch adds a new config entry "OMAP2_DSS_HDMI_COMMON", which both
OMAP4 and OMAP5 HDMI config entries can select. OMAP2_DSS_HDMI_COMMON
will cause the common HDMI files to be compiled.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
At the moment the dpi driver does not handle LCD3 clock source at all.
LCD3 channel gets the DSI PLL clock from DSI2 instance. Add support for
LCD3's clock source in the dpi driver.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
OMAP5 has LCD3 overlay manager, and total 4 overlay managers. These are
not correctly defined in the dss features. Fix them.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Add DSS features for AM43xx.
Signed-off-by: Sathya Prakash M R <sathyap@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The use of venc_panel.c was removed in
09d2e7cdeb (OMAPDSS: VENC: remove code
related to old panel model), but the file itself was left behind. Remove
the unused file.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The support for simpler port/endpoint binding was removed in the merged version
of omapdss DT. But dss_init_ports still tries to get to an endpoint even if no
port exists. Remove this as this doesn't work.
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
dss_uninit_ports is only called by __exit omap_dsshw_remove
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: linux-omap@vger.kernel.org
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
fb_image.dx, fb_image.dy and fbconf2bmap.framebuffer are __u32
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
All other Goldfish drivers depend on GOLDFISH, I see no reason why the
framebuffer driver would be an exception.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
All drivers under menu EXYNOS_VIDEO depend on either ARCH_S5PV210 or
ARCH_EXYNOS, so add these as dependencies to the menu itself. This
avoids presenting an empty and useless menu on other architectures.
Then drivers under the menu only need a dependency if they depend on
one of the supported architectures specifically.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Replace kzalloc by devm_kzalloc and remove the kfree() calls.
Signed-off-by: Denis Carikli <denis@eukrea.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The frame buffer core may be a loadable module, and in this
case, the nuc900 driver cannot be built-in. Turning it into
a tristate option lets Kconfig work out the dependency and
avoid broken builds.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: linux-fbdev@vger.kernel.org
Cc: Wan ZongShun <mcuos.com@gmail.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The atmel frame buffer driver doesn't build if FB_BACKLIGHT
is disabled, so select it here as we do for lots of other
drivers.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: linux-fbdev@vger.kernel.org
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Some drivers that may be loadable modules use the fb_prepare_logo
function, so we have to export it. Found during randconfig
builds with mmpfb.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: linux-fbdev@vger.kernel.org
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The mbx framebuffer debugfs support apparently hasn't been able
to build for a long time, at least since 2006 when the u.generic_ip
field in the inode was removed. This fixes the obvious bug, and
also makes it possible to build the driver as a module when
debugfs support is enabled, by simply including the C file.
It's ugly, but it won't make the driver any worse than it
already is, and doesn't require a more invasive change that
might break it further.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: linux-fbdev@vger.kernel.org
Cc: Raphael Assenat <raph@8d.com>
Cc: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
