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https://github.com/torvalds/linux
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55ccb1a8b4
The newly created omap_hwmod_reset.c is missing an
include of linux/errno.h in commit c02060d8 "ARM:
OMAP4+: AESS: enable internal auto-gating during
initial setup". It still works in omap2_defconfig,
but not in all other combinations.
Without this patch, building allmodconfig results in:
arch/arm/mach-omap2/omap_hwmod_reset.c: In function 'omap_hwmod_aess_preprogram':
arch/arm/mach-omap2/omap_hwmod_reset.c:47:11: error: 'EINVAL' undeclared (first use in this function)
arch/arm/mach-omap2/omap_hwmod_reset.c:47:11: note: each undeclared identifier is reported only once for each function it appears in
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Tony Lindgren <tony@atomide.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Sebastien Guiriec <s-guiriec@ti.com>
53 lines
1.6 KiB
C
53 lines
1.6 KiB
C
/*
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* OMAP IP block custom reset and preprogramming stubs
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*
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* Copyright (C) 2012 Texas Instruments, Inc.
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* Paul Walmsley
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*
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* A small number of IP blocks need custom reset and preprogramming
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* functions. The stubs in this file provide a standard way for the
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* hwmod code to call these functions, which are to be located under
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* drivers/.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation version 2.
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*
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any
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* kind, whether express or implied; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*/
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <sound/aess.h>
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#include "omap_hwmod.h"
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/**
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* omap_hwmod_aess_preprogram - enable AESS internal autogating
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* @oh: struct omap_hwmod *
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*
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* The AESS will not IdleAck to the PRCM until its internal autogating
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* is enabled. Since internal autogating is disabled by default after
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* AESS reset, we must enable autogating after the hwmod code resets
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* the AESS. Returns 0.
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*/
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int omap_hwmod_aess_preprogram(struct omap_hwmod *oh)
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{
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void __iomem *va;
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va = omap_hwmod_get_mpu_rt_va(oh);
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if (!va)
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return -EINVAL;
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aess_enable_autogating(va);
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return 0;
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}
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