diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-17 19:28:15 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-17 19:28:15 -0700 |
commit | 0df0914d414a504b975f3cc66ace0c16ef55b7f3 (patch) | |
tree | c97ffa357943a8b226cdec1b9632c4cede813205 /arch/arm/mach-omap2/hwspinlock.c | |
parent | 6899608533410557e6698cb9d4ff6df553916e98 (diff) | |
parent | 05f689400ea5fa3d71af82f910c8b140f87ad1f3 (diff) |
Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6
* 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (258 commits)
omap: zoom: host should not pull up wl1271's irq line
arm: plat-omap: iommu: fix request_mem_region() error path
OMAP2+: Common CPU DIE ID reading code reads wrong registers for OMAP4430
omap4: mux: Remove duplicate mux modes
omap: iovmm: don't check 'da' to set IOVMF_DA_FIXED flag
omap: iovmm: disallow mapping NULL address when IOVMF_DA_ANON is set
omap2+: mux: Fix compile when CONFIG_OMAP_MUX is not selected
omap4: board-omap4panda: Initialise the serial pads
omap3: board-3430sdp: Initialise the serial pads
omap4: board-4430sdp: Initialise the serial pads
omap2+: mux: Add macro for configuring static with omap_hwmod_mux_init
omap2+: mux: Remove the use of IDLE flag
omap2+: Add separate list for dynamic pads to mux
perf: add OMAP support for the new power events
OMAP4: Add IVA OPP enteries.
OMAP4: Update Voltage Rail Values for MPU, IVA and CORE
OMAP4: Enable 800 MHz and 1 GHz MPU-OPP
OMAP3+: OPP: Replace voltage values with Macros
OMAP3: wdtimer: Fix CORE idle transition
Watchdog: omap_wdt: add fine grain runtime-pm
...
Fix up various conflicts in
- arch/arm/mach-omap2/board-omap3evm.c
- arch/arm/mach-omap2/clock3xxx_data.c
- arch/arm/mach-omap2/usb-musb.c
- arch/arm/plat-omap/include/plat/usb.h
- drivers/usb/musb/musb_core.h
Diffstat (limited to 'arch/arm/mach-omap2/hwspinlock.c')
-rw-r--r-- | arch/arm/mach-omap2/hwspinlock.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/hwspinlock.c b/arch/arm/mach-omap2/hwspinlock.c new file mode 100644 index 000000000000..06d4a80660a5 --- /dev/null +++ b/arch/arm/mach-omap2/hwspinlock.c @@ -0,0 +1,63 @@ +/* + * OMAP hardware spinlock device initialization + * + * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com + * + * Contact: Simon Que <sque@ti.com> + * Hari Kanigeri <h-kanigeri2@ti.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/err.h> + +#include <plat/omap_hwmod.h> +#include <plat/omap_device.h> + +struct omap_device_pm_latency omap_spinlock_latency[] = { + { + .deactivate_func = omap_device_idle_hwmods, + .activate_func = omap_device_enable_hwmods, + .flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST, + } +}; + +int __init hwspinlocks_init(void) +{ + int retval = 0; + struct omap_hwmod *oh; + struct omap_device *od; + const char *oh_name = "spinlock"; + const char *dev_name = "omap_hwspinlock"; + + /* + * Hwmod lookup will fail in case our platform doesn't support the + * hardware spinlock module, so it is safe to run this initcall + * on all omaps + */ + oh = omap_hwmod_lookup(oh_name); + if (oh == NULL) + return -EINVAL; + + od = omap_device_build(dev_name, 0, oh, NULL, 0, + omap_spinlock_latency, + ARRAY_SIZE(omap_spinlock_latency), false); + if (IS_ERR(od)) { + pr_err("Can't build omap_device for %s:%s\n", dev_name, + oh_name); + retval = PTR_ERR(od); + } + + return retval; +} +/* early board code might need to reserve specific hwspinlock instances */ +postcore_initcall(hwspinlocks_init); |