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Author SHA1 Message Date
Tony Lindgren
45c3eb7d3a ARM: OMAP: Move plat-omap/dma-omap.h to include/linux/omap-dma.h
Based on earlier discussions[1] we attempted to find a suitable
location for the omap DMA header in commit 2b6c4e73 (ARM: OMAP:
DMA: Move plat/dma.h to plat-omap/dma-omap.h) until the conversion
to dmaengine is complete.

Unfortunately that was before I was able to try to test compile
of the ARM multiplatform builds for omap2+, and the end result
was not very good.

So I'm creating yet another all over the place patch to cut the
last dependency for building omap2+ for ARM multiplatform. After
this, we have finally removed the driver dependencies to the
arch/arm code, except for few drivers that are being worked on.

The other option was to make the <plat-omap/dma-omap.h> path
to work, but we'd have to add some new header directory to for
multiplatform builds.

Or we would have to manually include arch/arm/plat-omap/include
again from arch/arm/Makefile for omap2+.

Neither of these alternatives sound appealing as they will
likely lead addition of various other headers exposed to the
drivers, which we want to avoid for the multiplatform kernels.

Since we already have a minimal include/linux/omap-dma.h,
let's just use that instead and add a note to it to not
use the custom omap DMA functions any longer where possible.

Note that converting omap DMA to dmaengine depends on
dmaengine supporting automatically incrementing the FIFO
address at the device end, and converting all the remaining
legacy drivers. So it's going to be few more merge windows.

[1] https://patchwork.kernel.org/patch/1519591/#

cc: Russell King <linux@arm.linux.org.uk>
cc: Kevin Hilman <khilman@ti.com>
cc: "Benoît Cousson" <b-cousson@ti.com>
cc: Herbert Xu <herbert@gondor.apana.org.au>
cc: "David S. Miller" <davem@davemloft.net>
cc: Vinod Koul <vinod.koul@intel.com>
cc: Dan Williams <djbw@fb.com>
cc: Mauro Carvalho Chehab <mchehab@infradead.org>
cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
cc: David Woodhouse <dwmw2@infradead.org>
cc: Kyungmin Park <kyungmin.park@samsung.com>
cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
cc: Hans Verkuil <hans.verkuil@cisco.com>
cc: Vaibhav Hiremath <hvaibhav@ti.com>
cc: Lokesh Vutla <lokeshvutla@ti.com>
cc: Rusty Russell <rusty@rustcorp.com.au>
cc: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
cc: Afzal Mohammed <afzal@ti.com>
cc: linux-crypto@vger.kernel.org
cc: linux-media@vger.kernel.org
cc: linux-mtd@lists.infradead.org
cc: linux-usb@vger.kernel.org
cc: linux-fbdev@vger.kernel.org
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-11-30 08:41:50 -08:00
Tony Lindgren
6300ebe9fe ASoC: OMAP: mcbsp fixes for enabling ARM multiplatform support
We cannot include any plat or mach headers for the multiplatform
support.

Fix the issue by defining local mcbsp_omap1().

cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
cc: Liam Girdwood <lrg@ti.com>
cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
cc: Jaroslav Kysela <perex@perex.cz>
cc: Takashi Iwai <tiwai@suse.de>
cc: alsa-devel@alsa-project.org
Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-11-30 08:41:42 -08:00
Tony Lindgren
0a779abe87 watchdog: OMAP: fixup for ARM multiplatform support
Recent changes to the omap_wdt.c removed the dependencies to
the core omap code, but forgot to remove mach/hardware.h.

We cannot include any plat headers with multiplatform
support enabled.

cc: Wim Van Sebroeck <wim@iguana.be>
cc: linux-watchdog@vger.kernel.org
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-11-30 08:41:35 -08:00
Tony Lindgren
2589d05612 omap prcm changes via Paul Walmsley <paul@pwsan.com>:
Some miscellaneous OMAP hwmod changes for 3.8, along with a PRM
 change needed for one of the hwmod patches to function.
 
 Basic test logs for this branch on top of Tony's
 omap-for-v3.8/clock branch at commit
 558a0780b0 are here:
 
 http://www.pwsan.com/omap/testlogs/hwmod_devel_a_3.8/20121121161522/
 
 However, omap-for-v3.8/clock at 558a0780 does not include some fixes
 that are needed for a successful test.  With several reverts,
 fixes, and workarounds applied, the following test logs were
 obtained:
 
 http://www.pwsan.com/omap/testlogs/TEST_hwmod_devel_a_3.8/20121121162719/
 
 which indicate that the series tests cleanly.
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Merge tag 'tags/omap-for-v3.8/devel-prcm-signed' into omap-for-v3.8/cleanup-headers-prepare-multiplatform-v3

omap prcm changes via Paul Walmsley <paul@pwsan.com>:

Some miscellaneous OMAP hwmod changes for 3.8, along with a PRM
change needed for one of the hwmod patches to function.

Basic test logs for this branch on top of Tony's
omap-for-v3.8/clock branch at commit
558a0780b0 are here:

http://www.pwsan.com/omap/testlogs/hwmod_devel_a_3.8/20121121161522/

However, omap-for-v3.8/clock at 558a0780 does not include some fixes
that are needed for a successful test.  With several reverts,
fixes, and workarounds applied, the following test logs were
obtained:

http://www.pwsan.com/omap/testlogs/TEST_hwmod_devel_a_3.8/20121121162719/

which indicate that the series tests cleanly.

Conflicts:
	arch/arm/mach-omap2/cm33xx.c
	arch/arm/mach-omap2/io.c
	arch/arm/mach-omap2/prm_common.c
2012-11-30 08:40:31 -08:00
Tony Lindgren
8b9c1ac2e1 Some miscellaneous OMAP hwmod changes for 3.8, along with a PRM
change needed for one of the hwmod patches to function.
 
 Basic test logs for this branch on top of Tony's
 omap-for-v3.8/clock branch at commit
 558a0780b0 are here:
 
 http://www.pwsan.com/omap/testlogs/hwmod_devel_a_3.8/20121121161522/
 
 However, omap-for-v3.8/clock at 558a0780 does not include some fixes
 that are needed for a successful test.  With several reverts,
 fixes, and workarounds applied, the following test logs were
 obtained:
 
 http://www.pwsan.com/omap/testlogs/TEST_hwmod_devel_a_3.8/20121121162719/
 
 which indicate that the series tests cleanly.
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Merge tag 'omap-devel-a-for-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into omap-for-v3.8/devel-pcrm

Some miscellaneous OMAP hwmod changes for 3.8, along with a PRM
change needed for one of the hwmod patches to function.

Basic test logs for this branch on top of Tony's
omap-for-v3.8/clock branch at commit
558a0780b0 are here:

http://www.pwsan.com/omap/testlogs/hwmod_devel_a_3.8/20121121161522/

However, omap-for-v3.8/clock at 558a0780 does not include some fixes
that are needed for a successful test.  With several reverts,
fixes, and workarounds applied, the following test logs were
obtained:

http://www.pwsan.com/omap/testlogs/TEST_hwmod_devel_a_3.8/20121121162719/

which indicate that the series tests cleanly.
2012-11-26 12:32:50 -08:00
Peter Ujfalusi
c567b0584c ARM: OMAP2+: omap_device: Correct resource handling for DT boot
When booting with DT the OF core can fill up the resources provided within
the DT blob.
The current way of handling the DT boot prevents us from removing hwmod data
for platforms only suppose to boot with DT (OMAP5 for example) since we need
to keep the whole hwmod database intact in order to have more resources in
hwmod than in DT (to be able to append the DMA resource from hwmod).

To fix this issue we just examine the OF provided resources:
If we do not have resources we use hwmod to fill them.
If we have resources we check if we already able to recive DMA resource, if
no we only append the DMA resurce from hwmod to the OF provided ones.

In this way we can start removing hwmod data for devices which have their
resources correctly configured in DT without regressions.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Benoît Cousson <b-cousson@ti.com>
[paul@pwsan.com: fixed checkpatch problem; updated to apply]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-11-21 16:15:18 -07:00
Peter Ujfalusi
dad4191d79 ARM: OMAP2+: hwmod: Add possibility to count hwmod resources based on type
Add flags parameter for omap_hwmod_count_resources() so users can tell which
type of resources they are interested when counting them in hwmod database.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Benoît Cousson <b-cousson@ti.com>
[paul@pwsan.com: updated to apply]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-11-21 16:15:17 -07:00
Rajendra Nayak
e6d3a8b0bd ARM: OMAP2+: hwmod: Add support for per hwmod/module context lost count
OMAP4 has module specific context lost registers which makes it now
possible to have module level context loss count, instead of relying
on the powerdomain level context count.

Add 2 private hwmod api's to update/clear the hwmod/module specific
context lost counters/register.

Update the module specific context_lost_counter and clear the hardware
bits just after enabling the module.

omap_hwmod_get_context_loss_count() now returns the hwmod context loss
count them on platforms where they exist (OMAP4), else fall back on
the pwrdm level counters for older platforms.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
[paul@pwsan.com: added function kerneldoc, fixed structure kerneldoc,
 rearranged structure to avoid memory waste, marked fns as OMAP4-specific,
 prevent fn entry on non-OMAP4 chips, reduced indentation, merged update
 and clear, merged patches]
[t-kristo@ti.com: added support for arch specific hwmod ops, and changed
 the no context offset indicator to USHRT_MAX]
Signed-off-by: Tero Kristo <t-kristo@ti.com>
[paul@pwsan.com: use NO_CONTEXT_LOSS_BIT flag rather than USHRT_MAX;
 convert unsigned context lost counter to int to match the return type;
 get rid of hwmod_ops in favor of the existing soc_ops mechanism;
 move context loss low-level accesses to the PRM code]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-11-21 16:15:17 -07:00
Paul Walmsley
63a293e000 ARM: OMAP2+: PRM: initialize some PRM functions early
Some PRM functions will need to be called by the hwmod code early in
kernel init.  To handle this, split the PRM initialization code into
early and late phases.  The early init is handled via mach-omap2/io.c,
while the late init is handled by subsys_initcall().

Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-11-21 16:15:16 -07:00
Ivan Khoronzhuk
42a1cc9c0e ARM: OMAP4: ID: Improve features detection and check
Replaces several flags bearing the same meaning. There is no need
to set flags due to different omap types here, it can be checked
in appropriate places as well.

Cc: Tony Lindgren <tony@atomide.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: linux-omap@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Acked-by: Nishanth Menon <nm@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-11-14 12:10:37 -08:00
Tony Lindgren
0b4b61c0dc ARM: OMAP: Fix compile for OMAP_PM_NOOP if PM is not selected
Commit 6e740f9a8 (ARM: OMAP: Move omap-pm-noop.c local to mach-omap2)
moved omap-pm-noop to be local to mach-omap2. However, the makefile
entry got placed within ifeq ($(CONFIG_PM),y) which was not the
case earlier.

Fix the issue by moving it out of the ifeq ($(CONFIG_PM),y) in
the makefile as these stubs are needed also when PM is not set.

Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-11-14 09:41:54 -08:00
Tony Lindgren
558a0780b0 Convert the OMAP2+ clock code and data to rely on the common
clock framework for internal bookkeeping and the driver API.
 
 Basic test logs for this branch on top of Tony's cleanup-prcm branch
 at commit c9d501e5cb are here:
 
 http://www.pwsan.com/omap/testlogs/common_clk_devel_3.8_rebase/20121112192516/
 
 However, cleanup-prcm at c9d501e5 does not include some fixes
 that are needed for a successful test.  With several reverts,
 fixes, and workarounds applied, the following test logs were
 obtained:
 
 http://www.pwsan.com/omap/testlogs/TEST_common_clk_devel_3.8_rebase/20121112192300/
 
 which indicate that the series tests cleanly.
 
 N.B. The common clock data addition patches result in many
 checkpatch warnings of the form "WARNING: static const char *
 array should probably be static const char * const".  However, it
 appears that resolving these would require changes to the CCF
 itself.  So the resolution of these warnings is being postponed
 until that can be coordinated.
 
 These patches result in a ~55KiB increase in runtime kernel memory
 usage when booting omap2plus_defconfig kernels.
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Merge tag 'omap-cleanup-c-for-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into omap-for-v3.8/clock

Convert the OMAP2+ clock code and data to rely on the common
clock framework for internal bookkeeping and the driver API.

Basic test logs for this branch on top of Tony's cleanup-prcm branch
at commit c9d501e5cb are here:

http://www.pwsan.com/omap/testlogs/common_clk_devel_3.8_rebase/20121112192516/

However, cleanup-prcm at c9d501e5 does not include some fixes
that are needed for a successful test.  With several reverts,
fixes, and workarounds applied, the following test logs were
obtained:

http://www.pwsan.com/omap/testlogs/TEST_common_clk_devel_3.8_rebase/20121112192300/

which indicate that the series tests cleanly.

N.B. The common clock data addition patches result in many
checkpatch warnings of the form "WARNING: static const char *
array should probably be static const char * const".  However, it
appears that resolving these would require changes to the CCF
itself.  So the resolution of these warnings is being postponed
until that can be coordinated.

These patches result in a ~55KiB increase in runtime kernel memory
usage when booting omap2plus_defconfig kernels.

Conflicts:
	arch/arm/mach-omap2/clock33xx_data.c
	arch/arm/mach-omap2/clock3xxx_data.c
	arch/arm/mach-omap2/clock44xx_data.c
2012-11-13 13:32:24 -08:00
Tony Lindgren
89ab216b33 Merge branch 'omap-for-v3.8/pm' into omap-for-v3.8/clock 2012-11-13 13:25:38 -08:00
Mike Turquette
f9ae32a74f ARM: OMAP2+: clock: Cleanup !CONFIG_COMMON_CLK parts
Clean all #ifdef's added to common clock code.  This code is no longer
needed due to migration to the common clock framework.

Signed-off-by: Mike Turquette <mturquette@ti.com>
[paul@pwsan.com: clean up new ifdefs added in clockdomain.c]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-11-12 19:18:51 -07:00
Paul Walmsley
f51e0f9862 ARM: OMAP2xxx: clock: drop obsolete clock data
Drop the now-obsolete OMAP2420/2430 original OMAP clock data.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Mike Turquette <mturquette@ti.com>
2012-11-12 19:18:51 -07:00
Rajendra Nayak
d037e100d1 ARM: OMAP2: clock: Cleanup !CONFIG_COMMON_CLK parts
Clean all #ifdef's added to OMAP2 clock code to make it COMMON clk
ready, not that CONFIG_COMMON_CLK is enabled.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
[paul@pwsan.com: also drop CONFIG_COMMON_CLK tests around APLL recalc_rate
 functions]
Signed-off-by: Mike Turquette <mturquette@ti.com>
[paul@pwsan.com: remove some ifdefs in mach-omap2/io.c]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-11-12 19:18:51 -07:00
Paul Walmsley
455db9c9b2 ARM: OMAP3+: DPLL: drop !CONFIG_COMMON_CLK sections
Remove all of the code that is compiled when CONFIG_COMMON_CLK=n in the
OMAP3+ DPLL handling code.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Mike Turquette <mturquette@ti.com>
Cc: Rajendra Nayak <rnayak@ti.com>
2012-11-12 19:18:50 -07:00
Paul Walmsley
e127539fb3 ARM: AM33xx: clock: drop obsolete clock data
Drop the now-obsolete AM33xx original OMAP clock data.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Mike Turquette <mturquette@ti.com>
2012-11-12 19:18:50 -07:00
Paul Walmsley
368edee33e ARM: OMAP3xxx: clk: drop obsolete clock data
Drop the now-obsolete OMAP3xxx original OMAP clock data.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Mike Turquette <mturquette@ti.com>
2012-11-12 19:18:50 -07:00
Rajendra Nayak
25f4214e38 ARM: OMAP3: clock: Cleanup !CONFIG_COMMON_CLK parts
Clean all #ifdef's added to OMAP3 clock code to make it COMMON clk
ready, not that CONFIG_COMMON_CLK is enabled.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Mike Turquette <mturquette@ti.com>
[paul@pwsan.com: remove some ifdefs in mach-omap2/io.c]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-11-12 19:18:50 -07:00
Paul Walmsley
13a5b62286 ARM: OMAP44xx: clock: drop obsolete clock data
Drop the now-obsolete OMAP44xx original OMAP clock data.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Mike Turquette <mturquette@ti.com>
2012-11-12 19:18:50 -07:00
Rajendra Nayak
91c5b6d243 ARM: OMAP4: clock: Cleanup !CONFIG_COMMON_CLK parts
Clean all #ifdef's added to OMAP4 clock code to make it COMMON clk
ready, now that CONFIG_COMMON_CLK is enabled.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Mike Turquette <mturquette@ti.com>
[paul@pwsan.com: remove some ifdefs in mach-omap2/io.c]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-11-12 19:18:50 -07:00
Rajendra Nayak
c4a1ea2c62 ARM: OMAP: hwmod: Cleanup !CONFIG_COMMON_CLK parts
Clean all #ifdef's added as part of fixing the clkdm
accesses from hwmod.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Mike Turquette <mturquette@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-11-12 19:18:50 -07:00
Rajendra Nayak
f7f73aab3d ARM: OMAP: clock: Switch to COMMON clk
Select COMMON_CLK for all OMAP2+ SoCs and switch over to using new
data files for OMAP2/3/4.

The older data files will get removed in subsequent patches.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
[paul@pwsan.com: move 'select COMMON_CLK' from ARCH_OMAP2PLUS_TYPICAL to
 the per-SoC and per-"arch" Kconfig sections]
[mturquette@ti.com: fixed up #ifdef mismatch in clock.h in previous
  patch which drops that change from this patch]
Signed-off-by: Mike Turquette <mturquette@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-11-12 19:18:50 -07:00
Rajendra Nayak
6ab9f69e7e ARM: OMAP2: clock: Add 24xx data using common struct clk
The patch is the output from a python script which converts
from the old OMAP clk format to COMMON clk format using a
JSON parser in between which was developed by Paul Walmsley.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
[paul@pwsan.com: replace omap2_init_clksel_parent() with
 omap2_clksel_find_parent_index(); reflowed macros; dropped 243x clkdev
 aliases in 242x file; added recalc_rate fn ptrs to APLL clocks;
 fixed some checkpatch warnings]
[mturquette@ti.com: removed deprecated variables from omap24x0_clk_init]
Signed-off-by: Mike Turquette <mturquette@ti.com>
[paul@pwsan.com: fixed boot crash due to missing clock init code; added twl.fck
 alias; fix DPLL rate initialization; fix APLL clocks and virt_prcm_set
 initialization]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-11-12 19:18:49 -07:00
Rajendra Nayak
99e7938def ARM: OMAP3: clock: Add 3xxx data using common struct clk
The patch is the output from a python script which converts
from the old OMAP clk format to COMMON clk format using a
JSON parser in between which was developed by Paul Walmsley.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
[paul@pwsan.com: AM3517/05: dropped bogus hsotgusb "ick" and "fck"
 clkdev aliases; added hsotgusb_fck alias; added emac_ick and emac_fck
 aliases; replace omap2_init_clksel_parent() with
 omap2_clksel_find_parent_index(); reflow macros and parent name
 lists; add clkdm_name argument to DEFINE_STRUCT_CLK_HW_OMAP macros]
Signed-off-by: Mike Turquette <mturquette@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-11-12 19:18:49 -07:00
Vaibhav Hiremath
b4c6329537 ARM: AM33XX: clock: add clock data in common clock format
OMAP2/3/4 clock-tree data is migrated to common-clock framework,
so it is needed to do same for AM33XX device.

Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Cc: Rajendra Nayak <rnayak@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Benoit Cousson <b-cousson@ti.com>
[paul@pwsan.com: replace omap2_init_clksel_parent() with
 omap2_clksel_find_parent_index(); modified to not use the AM33xx common
 clock data yet; updated patch description; reflowed the macros;
 updated DEFINE_STRUCT_CLK_HW_OMAP usage to include clkdm_name]
Signed-off-by: Mike Turquette <mturquette@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-11-12 19:18:49 -07:00
Rajendra Nayak
cb26867ee2 ARM: OMAP4: clock: Add 44xx data using common struct clk
This patch is output from updated omap hw data autogeneration scripts
mostly contributed by Mike Turquette, with some later fixes from me.
All data is added into a new cclock44xx_data.c file which will be
switched with clock44xx_data.c file in a later patch.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
[paul@pwsan.com: replace omap2_init_clksel_parent() with
 omap2_clksel_find_parent_index(); reflowed macros; updated
 DEFINE_STRUCT_CLK_HW_OMAP macro to include clkdm_name;
 use macros for clksel mux+gate clocks; many other fixes]
[mturquette@ti.com: converted DPLL outputs to HSDIVIDER macro; trace_clk_div_ck
 has clkdm ops]
Signed-off-by: Mike Turquette <mturquette@ti.com>
[paul@pwsan.com: fixed the omap-gpmc.fck alias per commit a2e5b90b; fixed
 several checkpatch issues; moved the dpll3xxx.c clockdomain modifications to
 another patch]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-11-12 19:10:20 -07:00
Paul Walmsley
8c725dcd22 ARM: OMAP2+: clock: add OMAP CCF convenience macros to mach-omap2/clock.h
Define four convenience macros to be used in the upcoming OMAP2+
common clock framework port.  Although the use of these macros will
make the data somewhat more difficult to read, they significantly reduce
the number of lines in the output patch data.

Most of these were created by Rajendra Nayak and Mike Turquette, as
far as I know.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
[mturquette@ti.com: added DEFINE_CLK_OMAP_HSDIVIDER macro]
Signed-off-by: Mike Turquette <mturquette@ti.com>
Cc: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-11-12 19:10:20 -07:00
Rajendra Nayak
b6827ad5b6 ARM: OMAP: clock: Get rid of some clkdm assocations within clks
It's suspected that some of the clockdomain associations with clocks
can be removed from the clock data.  Drop several of these
associations to save diffstat and improve performance.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
[paul@pwsan.com: removed most of the changes in this patch; modified patch
 description]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Mike Turquette <mturquette@ti.com>
2012-11-12 19:10:19 -07:00
Mike Turquette
d043d87cd3 ARM: OMAP2+: clockdomain: bypass clockdomain handling when disabling unused clks
The OMAP port to the common clk framework[1] resulted in spurious WARNs
while disable unused clocks.  This is due to _clkdm_clk_hwmod_disable
catching clkdm->usecount's with a value of zero.  Even less desirable it
would not allow the clkdm_clk_disable function pointer to get called due
to an early return of -ERANGE.

This patch adds a check for such a corner case by skipping the WARN and
early return in the event that clkdm->usecount and clk->enable_usecount
are both zero.  Presumably this could only happen during the check for
unused clocks at boot-time.

[1] http://article.gmane.org/gmane.linux.ports.arm.omap/88824

Signed-off-by: Mike Turquette <mturquette@ti.com>
[paul@pwsan.com: split the hwmod and clock disable cases; modified the
 code to skip the clockdomain handling during the disable-unused-clocks phase;
 added COMMON_CLK ifdef; removed include of clk-private.h at Mike's request]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-11-12 19:10:19 -07:00
Vaibhav Hiremath
b797be1d4c ARM: OMAP2+: hwmod: Invoke init_clkdm before other init functions
Without this kernel would crash, since clkdm inside omap_hwmod
is accessed in some of the init functions like, _init_main_clk.

So call init_clkdm before _init_main_clk().

Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Mike Turquette <mturquette@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-11-12 19:10:19 -07:00
Rajendra Nayak
8577413c0a ARM: OMAP: clock: Define a function to enable clocks at init
Platform code can use omap2_clk_enable_init_clocks() to enable a
list of clocks that are needed to be enabled at init.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Mike Turquette <mturquette@ti.com>
[paul@pwsan.com: added kerneldoc to non-trivial new function]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-11-12 19:10:19 -07:00
Rajendra Nayak
23fb8ba3a8 ARM: OMAP: clock: list all clk_hw_omap clks to enable/disable autoidle
Platforms can call omap2_init_clk_hw_omap_clocks() to register a clock
using clk_hw_omap. omap2_clk_enable_autoidle_all() and
omap2_clk_disable_autoidle_all() can then be used to run through
all the clocks which support autoidle to enable/disable them.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Mike Turquette <mturquette@ti.com>
[paul@pwsan.com: added kerneldoc on non-trivial new functions]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-11-12 19:10:18 -07:00
Paul Walmsley
7a2bd1cc39 ARM: OMAP2xxx: clock: add APLL rate recalculation functions
OMAP2420 and OMAP2430 chips each have two on-chip APLLs.  When locked,
one APLL generates a 96 MHz rate; the other, a 54 MHz rate.
Previously we treated these clocks as fixed-rate clocks at the locked
rates, but this isn't quite right.  The locked rate should be returned
when the APLL is locked, and a zero rate should be returned when the
APLL is stopped.  This patch adds the infrastructure that will be used
by the CCF changes.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Mike Turquette <mturquette@ti.com>
Cc: Rajendra Nayak <rnayak@ti.com>
2012-11-12 19:10:18 -07:00
Rajendra Nayak
ed1ebc4948 ARM: OMAP2: clock: Convert to common clk
Convert all OMAP2 specific platform files to use COMMON clk
and keep all the changes under the CONFIG_COMMON_CLK macro check
so it does not break any existing code. At a later point switch
to COMMON clk and get rid of all old/legacy code.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Mike Turquette <mturquette@ti.com>
[paul@pwsan.com: updated to apply]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-11-12 19:10:18 -07:00
Rajendra Nayak
b4777a2138 ARM: OMAP3: clock: Convert to common clk
Convert all OMAP3 specific platform files to use COMMON clk
and keep all the changes under the CONFIG_COMMON_CLK macro check
so it does not break any existing code. At a later point switch
to COMMON clk and get rid of all old/legacy code.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Mike Turquette <mturquette@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-11-12 19:10:18 -07:00
Wei Yongjun
e05cf58d50 ARM: OMAP2+: remove duplicated include from board-overo.c
Remove duplicated include.

dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-11-12 14:02:48 -08:00
Benoit Cousson
8de7e37ef0 ARM: OMAP: debug-leds: Use resource_size instead of hard coded macro
The debug-leds driver should not rely on hard coded macro for
the iomem size but use the resource size instead.

Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-11-12 13:28:28 -08:00
Mike Turquette
32cc002116 ARM: OMAP4: clock: Convert to common clk
Convert all OMAP4 specific platform files to use COMMON clk
and keep all the changes under the CONFIG_COMMON_CLK macro check
so it does not break any existing code. At a later point switch
to COMMON clk and get rid of all old/legacy code.

This converts all apis which will be called directly from COMMON
clk to take a struct clk_hw parameter, and all the internal platform
apis to take a struct clk_hw_omap parameter.

Changes are based off the original patch from Mike Turquette.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
[paul@pwsan.com: created new omap2_clksel_find_parent_index() rather than
 modifying omap2_init_clksel_parent(); moved clkhwops_iclk_wait to
 clkt_iclk.c to fix OMAP4-only builds; added clk-provider.h include to clock.h
 to try to fix some 3430-builds]
[mturquette@ti.com: squash patch for omap2_clkops_{en,dis}able_clkdm;
 omap2_dflt_clk_is_enabled should not enable clocks]
Signed-off-by: Mike Turquette <mturquette@ti.com>
[paul@pwsan.com: fix compiler warning; update to apply; added kerneldoc on
 non-trivial new functions; added the dpll3xxx clockdomain modifications]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-11-12 13:55:50 -07:00
Rajendra Nayak
f5dd3bb53c ARM: OMAP: hwmod: Fix up hwmod based clkdm accesses
hwmod uses deferencing the clk pointer to acccess the clkdm.
With COMMON clk hwoever this will need to be deferenced through
the clk_hw_omap pointer, so do the necessary changes.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Mike Turquette <mturquette@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-11-12 13:55:50 -07:00
Rajendra Nayak
b5a2366c18 ARM: OMAP: clock: Nuke plat/clock.c & reuse struct clk as clk_hw_omap
plat/clock.c which has most of usecounting/locking infrastructure will
be used only for OMAP1 until that is moved to use COMMON clk.

reuse most of what plat/clock.h has while we move to common clk, and
move most of what 'struct clk' was as 'struct clk_hw_omap' which
will then be used to define platform specific parameters.
All usecounting/locking related variables from 'struct clk' are
dropped as they will not be used with 'struct clk_hw_omap'.

Based on the original changes from Mike Turquette.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Mike Turquette <mturquette@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2012-11-12 13:55:49 -07:00
Tony Lindgren
edf8dde393 Merge branch 'linus' into omap-for-v3.8/cleanup-headers-prepare-multiplatform-v3 2012-11-09 14:58:01 -08:00
Tony Lindgren
c9d501e5cb Second set of OMAP PRCM cleanups for 3.8.
These patches remove the use of omap_prcm_get_reset_sources() from the
 OMAP watchdog driver, and remove mach-omap2/prcm.c and
 plat-omap/include/plat/prcm.h.
 
 Basic test logs for this branch on top of Tony's cleanup-prcm branch
 at commit 7fc54fd308 are here:
 
     http://www.pwsan.com/omap/testlogs/prcm_cleanup_b_3.8/20121108151646/
 
 However, cleanup-prcm at 7fc54fd3 does not include some fixes
 that are needed for a successful test.  With several reverts,
 fixes, and workarounds applied, the following test logs were
 obtained:
 
     http://www.pwsan.com/omap/testlogs/TEST_prcm_cleanup_b_3.8/20121108151930/
 
  which indicate that the series tests cleanly.
 
 This second pull request updates one of the patches which broke
 with rmk's allnoconfigs, and also updates the tag description to
 indicate that 7fc54fd3 is building cleanly here.
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Merge tag 'omap-cleanup-b2-for-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into omap-for-v3.8/cleanup-prcm

Second set of OMAP PRCM cleanups for 3.8.

These patches remove the use of omap_prcm_get_reset_sources() from the
OMAP watchdog driver, and remove mach-omap2/prcm.c and
plat-omap/include/plat/prcm.h.

Basic test logs for this branch on top of Tony's cleanup-prcm branch
at commit 7fc54fd308 are here:

    http://www.pwsan.com/omap/testlogs/prcm_cleanup_b_3.8/20121108151646/

However, cleanup-prcm at 7fc54fd3 does not include some fixes
that are needed for a successful test.  With several reverts,
fixes, and workarounds applied, the following test logs were
obtained:

    http://www.pwsan.com/omap/testlogs/TEST_prcm_cleanup_b_3.8/20121108151930/

 which indicate that the series tests cleanly.

This second pull request updates one of the patches which broke
with rmk's allnoconfigs, and also updates the tag description to
indicate that 7fc54fd3 is building cleanly here.
2012-11-09 14:13:43 -08:00
Paul Walmsley
b99db36cdf ARM: OMAP2+: PRCM: remove obsolete prcm.[ch]
arch/arm/mach-omap2/prcm.c and arch/arm/plat-omap/include/plat/prcm.h
are now completely unused and can be removed.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Tested-by: Vaibhav Hiremath <hvaibhav@ti.com>
2012-11-08 15:09:26 -07:00
Paul Walmsley
2577a4a609 ARM: OMAP2+: hwmod: call to _omap4_disable_module() should use the SoC-specific call
The hwmod code unconditionally calls _omap4_disable_module() on all
SoCs when a module doesn't enable correctly.  This "worked" due to the
weak function omap4_cminst_wait_module_idle() in
arch/arm/mach-omap2/prcm.c, which was a no-op.  But now those weak
functions are going away - they should not be used.  So this patch
will now call the SoC-specific disable_module code, assuming it
exists.

Needs to be done before the weak function is removed, otherwise AM33xx
will crash early in boot.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Tested-by: Vaibhav Hiremath <hvaibhav@ti.com>
2012-11-08 15:09:26 -07:00
Paul Walmsley
b13159afb4 ARM: OMAP2+: PRCM: consolidate PRCM-related timeout macros
Consolidate all of the copies of MAX_MODULE_HARDRESET_WAIT and
MAX_MODULE_SOFTRESET_WAIT into one place, arch/arm/mach-omap2/prm.h.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Tested-by: Vaibhav Hiremath <hvaibhav@ti.com>
2012-11-08 15:09:26 -07:00
Paul Walmsley
d9a16f9ab9 ARM: OMAP2+: PRCM: split and relocate the PRM/CM globals setup
Split omap2_set_globals_prcm() into PRM, CM, and PRCM_MPU variants, since
these are all separate IP blocks.  This should make it easier to move the
PRM, CM, PRCM_MPU code into drivers/ in future patchsets.

At this point arch/arm/plat-omap/include/plat/prcm.h is empty; a
subsequent patch will remove it, and remove the #include from all the
files that #include it.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Tested-by: Vaibhav Hiremath <hvaibhav@ti.com>
2012-11-08 15:09:26 -07:00
Paul Walmsley
5b78e61b1c ARM: OMAP2+: PRCM: remove omap2_cm_wait_idlest()
Now that all users of mach-omap2/omap2_cm_wait_idlest() have been removed,
delete the function and its supporting macros and prototypes.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Tested-by: Vaibhav Hiremath <hvaibhav@ti.com>
2012-11-08 15:09:26 -07:00
Paul Walmsley
c4ceedcb18 ARM: OMAP2+: CM/clock: convert _omap2_module_wait_ready() to use SoC-independent CM functions
Convert the OMAP clock code's _omap2_module_wait_ready() to use
SoC-independent CM functions that are provided by the CM code, rather
than using a deprecated function from mach-omap2/prcm.c.

This facilitates the future conversion of the CM code to a driver, and
also removes a mach-omap2/prcm.c user.  mach-omap2/prcm.c will be removed
by a subsequent patch.

Some modules have IDLEST registers that aren't in the CM module, such
as the AM3517 IDLEST bits.  So we also need a fallback function for
these non-CM odd cases.  Create a temporary one in mach-omap2/clock.c,
intended to exist until the SCM drivers are ready.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Tested-by: Vaibhav Hiremath <hvaibhav@ti.com>
2012-11-08 12:33:08 -07:00