diff options
author | Tony Lindgren <tony@atomide.com> | 2013-02-11 09:40:45 -0800 |
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committer | Tony Lindgren <tony@atomide.com> | 2013-02-11 09:40:45 -0800 |
commit | 93b23711b7132400d4d76f31c660d27a2bb0afdb (patch) | |
tree | 9de75a8020d78fc210f82451414bc0a09f6fa228 /arch/arm/mach-omap2/omap_hwmod_reset.c | |
parent | 88b62b915b0b7e25870eb0604ed9a92ba4bfc9f7 (diff) | |
parent | a5a8c31d9f7587b601ecf0106c8abeabe3da24c3 (diff) |
Merge tag 'omap-devel-d2-for-3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into omap-for-v3.9/pm-omap4
Some OMAP4 power management fixes and audio device integration
patches. This pull request contains a fix for an issue discovered during
branch integration.
Basic test logs are available at:
http://www.pwsan.com/omap/testlogs/omap4_prcm_devel_a_3.9/20130210112717/
Diffstat (limited to 'arch/arm/mach-omap2/omap_hwmod_reset.c')
-rw-r--r-- | arch/arm/mach-omap2/omap_hwmod_reset.c | 52 |
1 files changed, 52 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..bba43fa627d --- /dev/null +++ b/arch/arm/mach-omap2/omap_hwmod_reset.c @@ -0,0 +1,52 @@ +/* + * 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 <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; +} |