- 12 Dec, 2009 29 commits
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Rajendra Nayak authored
This patch adds dummy hooks for OMAP4 dpll api's. Removes dummy hooks for clkdev api's and enables CLKDEV for OMAP4. Also comments clockdomain calls from within the clock framework as its not supported yet for OMAP4. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Benoit Cousson <b-cousson@ti.com>
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Rajendra Nayak authored
This patch defines all the clock nodes in OMAP4430 platform. All the clock node structs and the clkdev table is autogenerated using a python script (gen_clock_tree.py) developed by Paul Walmsley, Benoit Cousson and Rajendra Nayak. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Benoit Cousson <b-cousson@ti.com>
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Rajendra Nayak authored
This patch adds OMAP4 specific CM1 and CM2 module register field masks. Auto generated using a python script (gen_cm_shifts_and_mask.py) developed by Benoit Cousson, Paul Walmsley and Rajendra Nayak. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Benoit Cousson <b-cousson@ti.com>
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Rajendra Nayak authored
This patch adds OMAP4 specific PRM register bit field shifts and masks. Auto generated using a python script (gen_prm_shifts_and_mask.py) developed by Benoit Cousson, Paul Walmsley and Rajendra Nayak. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Benoit Cousson <b-cousson@ti.com>
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Rajendra Nayak authored
This patch adds OMAP4 specific PRM register defs. Auto generated using a python script (gen_prm_4430_h.py) developed by Paul Walmsley and Benoit Cousson. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Benoit Cousson <b-cousson@ti.com>
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Rajendra Nayak authored
This patch adds OMAP4 specific CM1 and CM2 module register defs. Autogenerated using a python scripts (gen_cm1_4430_h.py,gen_cm2_4430_h.py) developed by Paul Walmsley and Benoit Cousson. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Benoit Cousson <b-cousson@ti.com>
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Rajendra Nayak authored
This patch adds the offsets for new modules in PRM and CM for OMAP4 These are autogenerated using a python script (gen_prcm44xx_h.py) developed by Paul Walmsley and Benoit Cousson. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Benoit Cousson <b-cousson@ti.com>
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Rajendra Nayak authored
This patch fixes the PRM and CM base addresses and adds a new CM2 base address for OMAP4 Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Benoit Cousson <b-cousson@ti.com>
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Kevin Hilman authored
Rather than having to do a usecs = nsecs / NSECS_PER_USEC to track latency in usecs, just track it in nanoseconds. Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
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Kevin Hilman authored
Use usecs = nsecs / NSEC_PER_USEC; instead of usecs = nsecs * NSEC_PER_USEC; Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
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Kevin Hilman authored
WARN if a clock/hwmod is missing a clockdomain association since resulting hwmod will not be able to correctly enable/disable clocks. Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
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Kevin Hilman authored
During suspend and resume, when omap_device deactivation and activation is happening, the timekeeping subsystem has likely already been suspended. Thus getnstimeofday() will fail and trigger a WARN(). Use read_persistent_clock() instead of getnstimeofday() to avoid this. Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
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Kevin Hilman authored
The _dev_wakeup_lat_limit field of struct omap_device is u32, so use UINT_MAX instead of INT_MAX for the default maximum. Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
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Kevin Hilman authored
Following the model of to_platform_device(), add to_omap_device() macro so a platform_device pointer can be converted into an omap_device pointer. Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
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Paul Walmsley authored
Earlier, the hwmod code had considered the OCP_SYSCONFIG.CLOCKACTIVITY bits to be incremental power saving bits, controlling internal IP block clock gates. This was a misapprehension. The CLOCKACTIVITY bits are used to indicate, in advance, which clocks will be cut when the module acknowledges an idle request. This enables the IP block to take whatever action is necessary to complete any in-progress work before asserting its IdleAck. In the current Linux-OMAP code, this implies that the clock framework should be changing module CLOCKACTIVITY bits as module clocks are enabled and disabled. We don't do that yet, but in the future, we should. This must wait until the clock tree is annotated with omap_hwmod pointers (or vice-versa). In the meantime, drop most of the hwmod code that controls CLOCKACTIVITY bits to avoid confusion. This patch has benefited from many illuminating discussions with (in alphabetical order) Benoît Cousson <b-cousson@ti.com>, Rajendra Nayak <rnayak@ti.com>, and Sebastien Sabatier <s-sabatier1@ti.com>. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Rajendra Nayak <rnayak@ti.com> Cc: Sebastien Sabatier <s-sabatier1@ti.com> Cc: Benoît Cousson <b-cousson@ti.com>
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Paul Walmsley authored
Replace the existing u8 array of module MPU IRQ lines with a struct that includes a name - similar to the existing struct omap_hwmod_dma_info. Device drivers can then use platform_get_resource_byname() to retrieve specific IRQs without nasty dependencies on array ordering. Thanks to Benoît Cousson <b-cousson@ti.com> and Kevin Hilman <khilman@deeprootsystems.com> for feedback on this approach. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Benoît Cousson <b-cousson@ti.com> Cc: Kevin Hilman <khilman@deeprootsystems.com>
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Paul Walmsley authored
This patch fills in the OCP_SYSCONFIG.AUTOIDLE handling in the OMAP hwmod code. After this patch, the hwmod code will set the module AUTOIDLE bit (generally <module>.OCP_SYSCONFIG.AUTOIDLE) to 1 by default upon enable. If the hwmod flag HWMOD_NO_OCP_AUTOIDLE is set, AUTOIDLE will be set to 0 upon enable. Upon module disable, AUTOIDLE will be set to 1. Enabling module autoidle should save some power. The only reason to not set the OCP_SYSCONFIG.AUTOIDLE bit is if there is a bug in the module RTL, e.g., the MPUINTC block on OMAP3. Comments from Kevin Hilman <khilman@deeprootsystems.com> inspired this patch, and Kevin tested an earlier version of this patch. Signed-off-by: Paul Walmsley <paul@pwsan.com> Tested-by: Kevin Hilman <khilman@deeprootsystems.com>
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Paul Walmsley authored
Reprogram the module's OCP_SYSCONFIG register after module reset (SOFTRESET = 1). This may not be needed, but the definition of the reset performed by the SOFTRESET bit is unclear. Kevin Hilman <khilman@deeprootsystems.com> tested an earlier version of this patch. Signed-off-by: Paul Walmsley <paul@pwsan.com> Tested-by: Kevin Hilman <khilman@deeprootsystems.com>
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Paul Walmsley authored
Fix loop bailout off-by-one bugs reported by Juha Leppänen <juha_motorsportcom@luukku.com>. This second version incorporates comments from Russell King <linux@arm.linux.org.uk>. A new macro, 'omap_test_timeout', has been created, with cleaner code, and existing code has been converted to use it. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Juha Leppänen <juha_motorsportcom@luukku.com> Cc: Russell King <linux@arm.linux.org.uk>
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Thara Gopinath authored
MPU power domain bank 0 bits are displayed in position of bank 1 in PWRSTS and PREPWRSTS registers. So read them from correct position Signed-off-by: Thara Gopinath <thara@ti.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
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Paul Walmsley authored
The code that reprograms the SDRC memory controller during CORE DVFS, mach-omap2/sram34xx.S:omap3_sram_configure_core_dpll(), does not ensure that all L3 initiators are prevented from accessing the SDRAM before modifying the SDRC AC timing and MR registers. This can cause memory to be corrupted or cause the SDRC to enter an unpredictable state. This patch places that code behind a Kconfig option, CONFIG_OMAP3_SDRC_AC_TIMING for now, and adds a note explaining what is going on. Ideally the code can be added back in once supporting code is present to ensure that other initiators aren't touching the SDRAM. At the very least, these registers should be reprogrammable during kernel init to deal with buggy bootloaders. Users who know that all other system initiators will not be touching the SDRAM can also re-enable this Kconfig option. This is a modification of a patch originally written by Rajendra Nayak <rnayak@ti.com> (the original is at http://patchwork.kernel.org/patch/51927/). Rather than removing the code completely, this patch just comments it out. Thanks to Benoît Cousson <b-cousson@ti.com> and Christophe Sucur <c-sucur@ti.com> for explaining the technical basis for this and for explaining what can be done to make this path work in future code. Thanks to Richard Woodruff <r-woodruff2@ti.com>, Nishanth Menon <nm@ti.com>, and Olof Johansson <olof@lixom.net> for their comments. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Rajendra Nayak <rnayak@ti.com> Cc: Christophe Sucur <c-sucur@ti.com> Cc: Benoît Cousson <b-cousson@ti.com> Cc: Richard Woodruff <r-woodruff2@ti.com> Cc: Nishanth Menon <nm@ti.com> Cc: Olof Johansson <olof@lixom.net>
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Roel Kluin authored
IS_ERR returns only 1 or 0, and the functions return a negative error in other cases anyways. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
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Paul Walmsley authored
This patch rearranges the order of structure members in struct powerdomain to avoid wasting memory due to alignment restrictions. Signed-off-by: Paul Walmsley <paul@pwsan.com>
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Paul Walmsley authored
Replace some bare constants with power states. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Kevin Hilman <khilman@deeprootsystems.com>
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Paul Walmsley authored
OMAP24xx chips don't support software-configurable sleep dependencies. Test early for this so the compiler can redact the entire function body on OMAP24xx. Signed-off-by: Paul Walmsley <paul@pwsan.com>
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Paul Walmsley authored
Avoid cluttering the Kconfig space with debug options that are rarely used. These can now be enabled and disabled by patching the "#undef DEBUG" in the source files with "#define DEBUG", conforming to the practice for the rest of the linux-omap code. Also, while we're here, some lines in plat-omap/Kconfig use sets of leading spaces when those lines should start with tabs. Convert most of them to use tabs. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Tony Lindgren <tony@atomide.com>
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Paul Walmsley authored
Device drivers and loadable modules should not be calling these prm_* and cm_* functions, so stop exporting them. Only core code and device driver integration code (in arch/arm/*omap*) should call these functions. Signed-off-by: Paul Walmsley <paul@pwsan.com>
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Paul Walmsley authored
The OMAP1 clock code currently #includes a large .h file full of static data structures. Instead, define the data in a .c file. Russell King <linux@arm.linux.org.uk> proposed this new arrangement: http://marc.info/?l=linux-omap&m=125967425908895&w=2 This patch also deals with most of the flagrant checkpatch violations. While here, separate the mpu_rate data structures out into their own files, opp.h and opp_data.c. In the long run, these mpu_rate tables should be replaced with OPP code. Also includes a patch from Felipe Balbi <felipe.balbi@nokia.com> to mark omap1_clk_functions as __initdata to avoid a section warning: http://patchwork.kernel.org/patch/64366/Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Felipe Balbi <felipe.balbi@nokia.com> Cc: Nishanth Menon <nm@ti.com>
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Paul Walmsley authored
mach-omap1/clock.c:omap1_clk_disable_unused() contains a test that assumes that the clock structures are available in the file's namespace. After a following patch, this will no longer be the case. So we need to reimplement that test. It turns out that we already have a facility in the clock framework to handle this case - the ENABLE_ON_INIT flag - used on OMAP2/3. Remove the offending test and mark the clocks that it was intended to catch as ENABLE_ON_INIT. Signed-off-by: Paul Walmsley <paul@pwsan.com>
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- 11 Dec, 2009 7 commits
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Paul Walmsley authored
The OMAP2 clock code currently #includes a large .h file full of static data structures. Instead, define the data in a .c file. Russell King <linux@arm.linux.org.uk> proposed this new arrangement: http://marc.info/?l=linux-omap&m=125967425908895&w=2 This patch also deals with most of the flagrant checkpatch violations. While here, separate the prcm_config data structures out into their own files, opp2xxx.h and opp24{2,3}0_data.c, and only build in the OPP tables for the target device. This should save some memory. In the long run, these prcm_config tables should be replaced with OPP code. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Richard Woodruff <r-woodruff2@ti.com> Cc: Nishanth Menon <nm@ti.com>
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Paul Walmsley authored
The OMAP3 clock code currently #includes a large .h file full of static data structures. Instead, define the data in a .c file. Russell King <linux@arm.linux.org.uk> proposed this new arrangement: http://marc.info/?l=linux-omap&m=125967425908895&w=2Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Russell King <linux@arm.linux.org.uk>
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Paul Walmsley authored
cpu_mask is reused in the OMAP2xxx clock code to match against both the CPU-specific rate flags (e.g., RATE_IN_2420) and the OMAP clkdev integration code CPU flags (e.g., CK_242X). This means that any patch that renumbers the CK_* macros, as the next patch does, will probably break. This patch separates the clkdev_omap and clksel_rate CPU type detection flags so the CK_* macros can be renumbered freely. Signed-off-by: Paul Walmsley <paul@pwsan.com>
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Paul Walmsley authored
clock34xx.c contains some macros which probably belong in mach-omap2/sdrc.h. Move those macros to mach-omap2/sdrc.h. Signed-off-by: Paul Walmsley <paul@pwsan.com>
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Paul Walmsley authored
Similar to the previous patch, the APLL code relied on the presence of the static struct clks in its own namespace. The APLL code didn't use them for validation, however - it adjusted its own internal state depending on the struct clk * that called it. Now that static struct clks are leaving the clock24xx.c namespace, use a more durable method: split the omap2_clk_fixed_enable() function into omap2_clk_apll96_enable() and omap2_clk_apll54_enable(). They still share a disable function. Signed-off-by: Paul Walmsley <paul@pwsan.com>
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Paul Walmsley authored
Some parts of the clock code took advantage of the fact that the statically allocated clock tree was in clock{,24xx,34xx}.c's local namespace to do some extra argument checks. These are overzealous and are more difficult to maintain when the clock tree is in a separate namespace, so, remove them. Signed-off-by: Paul Walmsley <paul@pwsan.com>
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git://gitorious.org/linux-omap-dss2/linuxLinus Torvalds authored
* 'for-linus' of git://gitorious.org/linux-omap-dss2/linux: MAINTAINERS: Add OMAP2/3 DSS and OMAPFB maintainer OMAP: SDP: Enable DSS2 for OMAP3 SDP board OMAP: DSS2: Taal DSI command mode panel driver OMAP: DSS2: Add generic and Sharp panel drivers OMAP: DSS2: omapfb driver OMAP: DSS2: DSI driver OMAP: DSS2: SDI driver OMAP: DSS2: RFBI driver OMAP: DSS2: Video encoder driver OMAP: DSS2: DPI driver OMAP: DSS2: DISPC OMAP: DSS2: Add more core files OMAP: DSS2: Display Subsystem Driver core OMAP: DSS2: Documentation for DSS2 OMAP: Add support for VRFB rotation engine OMAP: Add VRAM manager OMAP: OMAPFB: add omapdss device OMAP: OMAPFB: split omapfb.h OMAP2: Add funcs for writing SMS_ROT_* registers
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- 10 Dec, 2009 4 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/wqLinus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: workqueue: Add debugobjects support
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git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xenLinus Torvalds authored
* 'bugfix' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen: xen: try harder to balloon up under memory pressure. Xen balloon: fix totalram_pages counting. xen: explicitly create/destroy stop_machine workqueues outside suspend/resume region. xen: improve error handling in do_suspend. xen: don't leak IRQs over suspend/resume. xen: call clock resume notifier on all CPUs xen: use iret for return from 64b kernel to 32b usermode xen: don't call dpm_resume_noirq() with interrupts disabled. xen: register runstate info for boot CPU early xen: register runstate on secondary CPUs xen: register timer interrupt with IRQF_TIMER xen: correctly restore pfn_to_mfn_list_list after resume xen: restore runstate_info even if !have_vcpu_info_placement xen: re-register runstate area earlier on resume. xen: wait up to 5 minutes for device connetion xen: improvement to wait_for_devices() xen: fix is_disconnected_device/exists_disconnected_device xen/xenbus: make DEVICE_ATTR()s static
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git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xenLinus Torvalds authored
* 'xen/fbdev' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen: xen pvfb: Inhibit VM_IO flag to be set on vmalloc-ed framebuffers. fb-defio: Inhibit VM_IO flag to be set on vmalloc-ed framebuffers. fb-defio: If FBINFO_VIRTFB is defined, do not set VM_IO flag. Fix toogle whether xenbus driver should be built as module or part of kernel.
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git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlmLinus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm: dlm: always use GFP_NOFS
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