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authorLinus Torvalds <torvalds@linux-foundation.org>2012-12-13 10:58:20 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-12-13 10:58:20 -0800
commita11da7df6543b5f71a150b47c0d08ecf0799a0f3 (patch)
tree77eaac99426f64a0a8dc3b5d62c86138a8c72d43 /arch/arm/mach-omap2/prm_common.c
parentb8edf848e9119bab9d999b9ca80d8520641810f2 (diff)
parent9c7466b217af784280d9fc841bbd559ef3bf33e9 (diff)
Merge tag 'pm-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC power management and clock changes from Olof Johansson: "This branch contains a largeish set of updates of power management and clock setup. The bulk of it is for OMAP/AM33xx platforms, but also a few around hotplug/suspend/resume on Exynos. It includes a split-up of some of the OMAP clock data into separate files which adds to the diffstat, but gross delta is fairly reasonable." * tag 'pm-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (60 commits) ARM: OMAP: Move plat-omap/dma-omap.h to include/linux/omap-dma.h ASoC: OMAP: mcbsp fixes for enabling ARM multiplatform support watchdog: OMAP: fixup for ARM multiplatform support ARM: EXYNOS: Add flush_cache_all in suspend finisher ARM: EXYNOS: Remove scu_enable from cpuidle ARM: EXYNOS: Fix soft reboot hang after suspend/resume ARM: EXYNOS: Add support for rtc wakeup ARM: EXYNOS: fix the hotplug for Cortex-A15 ARM: OMAP2+: omap_device: Correct resource handling for DT boot ARM: OMAP2+: hwmod: Add possibility to count hwmod resources based on type ARM: OMAP2+: hwmod: Add support for per hwmod/module context lost count ARM: OMAP2+: PRM: initialize some PRM functions early ARM: OMAP2+: voltage: fixup oscillator handling when CONFIG_PM=n ARM: OMAP4: USB: power down MUSB PHY during boot ARM: OMAP2+: clock: Cleanup !CONFIG_COMMON_CLK parts ARM: OMAP2xxx: clock: drop obsolete clock data ARM: OMAP2: clock: Cleanup !CONFIG_COMMON_CLK parts ARM: OMAP3+: DPLL: drop !CONFIG_COMMON_CLK sections ARM: AM33xx: clock: drop obsolete clock data ARM: OMAP3xxx: clk: drop obsolete clock data ...
Diffstat (limited to 'arch/arm/mach-omap2/prm_common.c')
-rw-r--r--arch/arm/mach-omap2/prm_common.c45
1 files changed, 45 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index f596e1e91ffd..228b850e632f 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -365,6 +365,51 @@ u32 prm_read_reset_sources(void)
}
/**
+ * prm_was_any_context_lost_old - was device context lost? (old API)
+ * @part: PRM partition ID (e.g., OMAP4430_PRM_PARTITION)
+ * @inst: PRM instance offset (e.g., OMAP4430_PRM_MPU_INST)
+ * @idx: CONTEXT register offset
+ *
+ * Return 1 if any bits were set in the *_CONTEXT_* register
+ * identified by (@part, @inst, @idx), which means that some context
+ * was lost for that module; otherwise, return 0. XXX Deprecated;
+ * callers need to use a less-SoC-dependent way to identify hardware
+ * IP blocks.
+ */
+bool prm_was_any_context_lost_old(u8 part, s16 inst, u16 idx)
+{
+ bool ret = true;
+
+ if (prm_ll_data->was_any_context_lost_old)
+ ret = prm_ll_data->was_any_context_lost_old(part, inst, idx);
+ else
+ WARN_ONCE(1, "prm: %s: no mapping function defined\n",
+ __func__);
+
+ return ret;
+}
+
+/**
+ * prm_clear_context_lost_flags_old - clear context loss flags (old API)
+ * @part: PRM partition ID (e.g., OMAP4430_PRM_PARTITION)
+ * @inst: PRM instance offset (e.g., OMAP4430_PRM_MPU_INST)
+ * @idx: CONTEXT register offset
+ *
+ * Clear hardware context loss bits for the module identified by
+ * (@part, @inst, @idx). No return value. XXX Deprecated; callers
+ * need to use a less-SoC-dependent way to identify hardware IP
+ * blocks.
+ */
+void prm_clear_context_loss_flags_old(u8 part, s16 inst, u16 idx)
+{
+ if (prm_ll_data->clear_context_loss_flags_old)
+ prm_ll_data->clear_context_loss_flags_old(part, inst, idx);
+ else
+ WARN_ONCE(1, "prm: %s: no mapping function defined\n",
+ __func__);
+}
+
+/**
* prm_register - register per-SoC low-level data with the PRM
* @pld: low-level per-SoC OMAP PRM data & function pointers to register
*