aboutsummaryrefslogtreecommitdiff
path: root/arch/arm/mach-omap2/omap_hwmod_reset.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2013-02-28 20:00:40 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-02-28 20:00:40 -0800
commit7307c00f335a4e986586b12334696098d2fc2bcd (patch)
tree3427b10ffc57570cf6153056f6ae1dac200cb3b3 /arch/arm/mach-omap2/omap_hwmod_reset.c
parentf8f466c81795a3ed2b8a74c8feebc280aec3db81 (diff)
parent55ccb1a8b4c14c086427fd6b7272448fbd0c4449 (diff)
Merge tag 'late-omap' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC late OMAP changes from Olof Johansson: "This branch contains changes for OMAP that came in late during the release staging, close to when the merge window opened. It contains, among other things: - OMAP PM fixes and some patches for audio device integration - OMAP clock fixes related to common clock conversion - A set of patches cleaning up WFI entry and blocking. - A set of fixes and IP block support for PM on TI AM33xx SoCs (Beaglebone, etc) - A set of smaller fixes and cleanups around AM33xx restart and revision detection, as well as removal of some dead code (CONFIG_32K_TIMER_HZ)" * tag 'late-omap' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (34 commits) ARM: omap2: include linux/errno.h in hwmod_reset ARM: OMAP2+: fix some omap_device_build() calls that aren't compiled by default ARM: OMAP4: hwmod data: Enable AESS hwmod device ARM: OMAP4: hwmod data: Update AESS data with memory bank area ARM: OMAP4+: AESS: enable internal auto-gating during initial setup ASoC: TI AESS: add autogating-enable function, callable from architecture code ARM: OMAP2+: hwmod: add enable_preprogram hook ARM: OMAP4: clock data: Add missing clkdm association for dpll_usb ARM: OMAP2+: PM: Fix the dt return condition in pm_late_init() ARM: OMAP2: am33xx-hwmod: Fix "register offset NULL check" bug ARM: OMAP2+: AM33xx: hwmod: add missing HWMOD_NO_IDLEST flags ARM: OMAP: AM33xx hwmod: Add parent-child relationship for PWM subsystem ARM: OMAP: AM33xx hwmod: Corrects PWM subsystem HWMOD entries ARM: DTS: AM33XX: Add nodes for OCMC RAM and WKUP-M3 ARM: OMAP2+: AM33XX: Update the hardreset API ARM: OMAP2+: AM33XX: hwmod: Update the WKUP-M3 hwmod with reset status bit ARM: OMAP2+: AM33XX: hwmod: Fixup cpgmac0 hwmod entry ARM: OMAP2+: AM33XX: hwmod: Update TPTC0 hwmod with the right flags ARM: OMAP2+: AM33XX: hwmod: Register OCMC RAM hwmod ARM: OMAP2+: AM33XX: CM/PRM: Use __ASSEMBLER__ macros in header files ...
Diffstat (limited to 'arch/arm/mach-omap2/omap_hwmod_reset.c')
-rw-r--r--arch/arm/mach-omap2/omap_hwmod_reset.c53
1 files changed, 53 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/omap_hwmod_reset.c b/arch/arm/mach-omap2/omap_hwmod_reset.c
new file mode 100644
index 00000000000..65e186c9df5
--- /dev/null
+++ b/arch/arm/mach-omap2/omap_hwmod_reset.c
@@ -0,0 +1,53 @@
+/*
+ * OMAP IP block custom reset and preprogramming stubs
+ *
+ * Copyright (C) 2012 Texas Instruments, Inc.
+ * Paul Walmsley
+ *
+ * A small number of IP blocks need custom reset and preprogramming
+ * functions. The stubs in this file provide a standard way for the
+ * hwmod code to call these functions, which are to be located under
+ * drivers/.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+#include <linux/kernel.h>
+#include <linux/errno.h>
+
+#include <sound/aess.h>
+
+#include "omap_hwmod.h"
+
+/**
+ * omap_hwmod_aess_preprogram - enable AESS internal autogating
+ * @oh: struct omap_hwmod *
+ *
+ * The AESS will not IdleAck to the PRCM until its internal autogating
+ * is enabled. Since internal autogating is disabled by default after
+ * AESS reset, we must enable autogating after the hwmod code resets
+ * the AESS. Returns 0.
+ */
+int omap_hwmod_aess_preprogram(struct omap_hwmod *oh)
+{
+ void __iomem *va;
+
+ va = omap_hwmod_get_mpu_rt_va(oh);
+ if (!va)
+ return -EINVAL;
+
+ aess_enable_autogating(va);
+
+ return 0;
+}