License cleanup: add SPDX GPL-2.0 license identifier to files with no license
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.
By default all files without license information are under the default
license of the kernel, which is GPL version 2.
Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.
This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.
How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,
Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.
The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.
The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.
Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if <5
lines).
All documentation files were explicitly excluded.
The following heuristics were used to determine which SPDX license
identifiers to apply.
- when both scanners couldn't find any license traces, file was
considered to have no license information in it, and the top level
COPYING file license applied.
For non */uapi/* files that summary was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 11139
and resulted in the first patch in this series.
If that file was a */uapi/* path one, it was "GPL-2.0 WITH
Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 WITH Linux-syscall-note 930
and resulted in the second patch in this series.
- if a file had some form of licensing information in it, and was one
of the */uapi/* ones, it was denoted with the Linux-syscall-note if
any GPL family license was found in the file or had no licensing in
it (per prior point). Results summary:
SPDX license identifier # files
---------------------------------------------------|------
GPL-2.0 WITH Linux-syscall-note 270
GPL-2.0+ WITH Linux-syscall-note 169
((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21
((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17
LGPL-2.1+ WITH Linux-syscall-note 15
GPL-1.0+ WITH Linux-syscall-note 14
((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5
LGPL-2.0+ WITH Linux-syscall-note 4
LGPL-2.1 WITH Linux-syscall-note 3
((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3
((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1
and that resulted in the third patch in this series.
- when the two scanners agreed on the detected license(s), that became
the concluded license(s).
- when there was disagreement between the two scanners (one detected a
license but the other didn't, or they both detected different
licenses) a manual inspection of the file occurred.
- In most cases a manual inspection of the information in the file
resulted in a clear resolution of the license that should apply (and
which scanner probably needed to revisit its heuristics).
- When it was not immediately clear, the license identifier was
confirmed with lawyers working with the Linux Foundation.
- If there was any question as to the appropriate license identifier,
the file was flagged for further research and to be revisited later
in time.
In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.
Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights. The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.
Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.
In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.
Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
- a full scancode scan run, collecting the matched texts, detected
license ids and scores
- reviewing anything where there was a license detected (about 500+
files) to ensure that the applied SPDX license was correct
- reviewing anything where there was no detection but the patch license
was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
SPDX license was correct
This produced a worksheet with 20 files needing minor correction. This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.
These .csv files were then reviewed by Greg. Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected. This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.) Finally Greg ran the script using the .csv files to
generate the patches.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-01 14:07:57 +00:00
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// SPDX-License-Identifier: GPL-2.0
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2011-09-14 22:01:21 +00:00
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/*
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* OMAP3xxx clockdomains
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*
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* Copyright (C) 2008-2011 Texas Instruments, Inc.
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* Copyright (C) 2008-2010 Nokia Corporation
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*
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* Paul Walmsley, Jouni Högander
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*
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* This file contains clockdomains and clockdomain wakeup/sleep
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* dependencies for the OMAP3xxx chips. Some notes:
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*
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* A useful validation rule for struct clockdomain: Any clockdomain
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* referenced by a wkdep_srcs or sleepdep_srcs array must have a
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* dep_bit assigned. So wkdep_srcs/sleepdep_srcs are really just
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* software-controllable dependencies. Non-software-controllable
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* dependencies do exist, but they are not encoded below (yet).
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*
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* The overly-specific dep_bit names are due to a bit name collision
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* with CM_FCLKEN_{DSP,IVA2}. The DSP/IVA2 PM_WKDEP and CM_SLEEPDEP shift
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* value are the same for all powerdomains: 2
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*
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* XXX should dep_bit be a mask, so we can test to see if it is 0 as a
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* sanity check?
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* XXX encode hardware fixed wakeup dependencies -- esp. for 3430 CORE
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*/
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/*
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* To-Do List
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* -> Port the Sleep/Wakeup dependencies for the domains
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* from the Power domain framework
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*/
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#include <linux/kernel.h>
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#include <linux/io.h>
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2012-10-05 20:25:59 +00:00
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#include "soc.h"
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2011-09-14 22:01:21 +00:00
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#include "clockdomain.h"
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#include "prm2xxx_3xxx.h"
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#include "cm2xxx_3xxx.h"
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#include "cm-regbits-34xx.h"
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#include "prm-regbits-34xx.h"
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/*
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* Clockdomain dependencies for wkdeps/sleepdeps
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*
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* XXX Hardware dependencies (e.g., dependencies that cannot be
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* changed in software) are not included here yet, but should be.
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*/
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/* OMAP3-specific possible dependencies */
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/*
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* 3430ES1 PM_WKDEP_GFX: adds IVA2, removes CORE
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* 3430ES2 PM_WKDEP_SGX: adds IVA2, removes CORE
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*/
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static struct clkdm_dep gfx_sgx_3xxx_wkdeps[] = {
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2012-05-08 05:55:38 +00:00
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{ .clkdm_name = "iva2_clkdm" },
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{ .clkdm_name = "mpu_clkdm" },
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{ .clkdm_name = "wkup_clkdm" },
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2011-09-14 22:01:21 +00:00
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{ NULL },
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};
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2012-04-19 20:16:46 +00:00
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static struct clkdm_dep gfx_sgx_am35x_wkdeps[] = {
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{ .clkdm_name = "mpu_clkdm" },
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{ .clkdm_name = "wkup_clkdm" },
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{ NULL },
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};
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2011-09-14 22:01:21 +00:00
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/* 3430: PM_WKDEP_PER: CORE, IVA2, MPU, WKUP */
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static struct clkdm_dep per_wkdeps[] = {
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{ .clkdm_name = "core_l3_clkdm" },
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{ .clkdm_name = "core_l4_clkdm" },
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{ .clkdm_name = "iva2_clkdm" },
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{ .clkdm_name = "mpu_clkdm" },
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{ .clkdm_name = "wkup_clkdm" },
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{ NULL },
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};
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2012-04-19 20:16:46 +00:00
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static struct clkdm_dep per_am35x_wkdeps[] = {
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{ .clkdm_name = "core_l3_clkdm" },
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{ .clkdm_name = "core_l4_clkdm" },
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{ .clkdm_name = "mpu_clkdm" },
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{ .clkdm_name = "wkup_clkdm" },
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{ NULL },
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};
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2011-09-14 22:01:21 +00:00
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/* 3430ES2: PM_WKDEP_USBHOST: CORE, IVA2, MPU, WKUP */
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static struct clkdm_dep usbhost_wkdeps[] = {
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{ .clkdm_name = "core_l3_clkdm" },
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{ .clkdm_name = "core_l4_clkdm" },
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{ .clkdm_name = "iva2_clkdm" },
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{ .clkdm_name = "mpu_clkdm" },
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{ .clkdm_name = "wkup_clkdm" },
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{ NULL },
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};
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2012-04-19 20:16:46 +00:00
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static struct clkdm_dep usbhost_am35x_wkdeps[] = {
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{ .clkdm_name = "core_l3_clkdm" },
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{ .clkdm_name = "core_l4_clkdm" },
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{ .clkdm_name = "mpu_clkdm" },
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{ .clkdm_name = "wkup_clkdm" },
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{ NULL },
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};
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2011-09-14 22:01:21 +00:00
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/* 3430 PM_WKDEP_MPU: CORE, IVA2, DSS, PER */
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static struct clkdm_dep mpu_3xxx_wkdeps[] = {
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{ .clkdm_name = "core_l3_clkdm" },
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{ .clkdm_name = "core_l4_clkdm" },
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{ .clkdm_name = "iva2_clkdm" },
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{ .clkdm_name = "dss_clkdm" },
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{ .clkdm_name = "per_clkdm" },
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{ NULL },
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};
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2012-04-19 20:16:46 +00:00
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static struct clkdm_dep mpu_am35x_wkdeps[] = {
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{ .clkdm_name = "core_l3_clkdm" },
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{ .clkdm_name = "core_l4_clkdm" },
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{ .clkdm_name = "dss_clkdm" },
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{ .clkdm_name = "per_clkdm" },
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{ NULL },
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};
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2011-09-14 22:01:21 +00:00
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/* 3430 PM_WKDEP_IVA2: CORE, MPU, WKUP, DSS, PER */
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static struct clkdm_dep iva2_wkdeps[] = {
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{ .clkdm_name = "core_l3_clkdm" },
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{ .clkdm_name = "core_l4_clkdm" },
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{ .clkdm_name = "mpu_clkdm" },
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{ .clkdm_name = "wkup_clkdm" },
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{ .clkdm_name = "dss_clkdm" },
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{ .clkdm_name = "per_clkdm" },
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{ NULL },
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};
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/* 3430 PM_WKDEP_CAM: IVA2, MPU, WKUP */
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static struct clkdm_dep cam_wkdeps[] = {
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{ .clkdm_name = "iva2_clkdm" },
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{ .clkdm_name = "mpu_clkdm" },
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{ .clkdm_name = "wkup_clkdm" },
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{ NULL },
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};
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/* 3430 PM_WKDEP_DSS: IVA2, MPU, WKUP */
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static struct clkdm_dep dss_wkdeps[] = {
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{ .clkdm_name = "iva2_clkdm" },
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{ .clkdm_name = "mpu_clkdm" },
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{ .clkdm_name = "wkup_clkdm" },
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{ NULL },
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};
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2012-04-19 20:16:46 +00:00
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static struct clkdm_dep dss_am35x_wkdeps[] = {
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{ .clkdm_name = "mpu_clkdm" },
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{ .clkdm_name = "wkup_clkdm" },
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{ NULL },
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};
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2011-09-14 22:01:21 +00:00
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/* 3430: PM_WKDEP_NEON: MPU */
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static struct clkdm_dep neon_wkdeps[] = {
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{ .clkdm_name = "mpu_clkdm" },
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{ NULL },
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};
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/* Sleep dependency source arrays for OMAP3-specific clkdms */
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/* 3430: CM_SLEEPDEP_DSS: MPU, IVA */
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static struct clkdm_dep dss_sleepdeps[] = {
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{ .clkdm_name = "mpu_clkdm" },
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{ .clkdm_name = "iva2_clkdm" },
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{ NULL },
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};
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2012-04-19 20:16:46 +00:00
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static struct clkdm_dep dss_am35x_sleepdeps[] = {
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{ .clkdm_name = "mpu_clkdm" },
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{ NULL },
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};
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2011-09-14 22:01:21 +00:00
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/* 3430: CM_SLEEPDEP_PER: MPU, IVA */
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static struct clkdm_dep per_sleepdeps[] = {
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{ .clkdm_name = "mpu_clkdm" },
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{ .clkdm_name = "iva2_clkdm" },
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{ NULL },
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};
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2012-04-19 20:16:46 +00:00
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static struct clkdm_dep per_am35x_sleepdeps[] = {
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{ .clkdm_name = "mpu_clkdm" },
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{ NULL },
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};
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2011-09-14 22:01:21 +00:00
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/* 3430ES2: CM_SLEEPDEP_USBHOST: MPU, IVA */
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static struct clkdm_dep usbhost_sleepdeps[] = {
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{ .clkdm_name = "mpu_clkdm" },
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{ .clkdm_name = "iva2_clkdm" },
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{ NULL },
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};
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2012-04-19 20:16:46 +00:00
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static struct clkdm_dep usbhost_am35x_sleepdeps[] = {
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{ .clkdm_name = "mpu_clkdm" },
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{ NULL },
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};
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2011-09-14 22:01:21 +00:00
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/* 3430: CM_SLEEPDEP_CAM: MPU */
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static struct clkdm_dep cam_sleepdeps[] = {
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{ .clkdm_name = "mpu_clkdm" },
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{ NULL },
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};
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/*
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* 3430ES1: CM_SLEEPDEP_GFX: MPU
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* 3430ES2: CM_SLEEPDEP_SGX: MPU
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* These can share data since they will never be present simultaneously
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* on the same device.
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*/
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static struct clkdm_dep gfx_sgx_sleepdeps[] = {
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{ .clkdm_name = "mpu_clkdm" },
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{ NULL },
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};
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/*
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* OMAP3 clockdomains
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*/
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static struct clockdomain mpu_3xxx_clkdm = {
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.name = "mpu_clkdm",
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.pwrdm = { .name = "mpu_pwrdm" },
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.flags = CLKDM_CAN_HWSUP | CLKDM_CAN_FORCE_WAKEUP,
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.dep_bit = OMAP3430_EN_MPU_SHIFT,
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.wkdep_srcs = mpu_3xxx_wkdeps,
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.clktrctrl_mask = OMAP3430_CLKTRCTRL_MPU_MASK,
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};
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2012-04-19 20:16:46 +00:00
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static struct clockdomain mpu_am35x_clkdm = {
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.name = "mpu_clkdm",
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.pwrdm = { .name = "mpu_pwrdm" },
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.flags = CLKDM_CAN_HWSUP | CLKDM_CAN_FORCE_WAKEUP,
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.dep_bit = OMAP3430_EN_MPU_SHIFT,
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.wkdep_srcs = mpu_am35x_wkdeps,
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.clktrctrl_mask = OMAP3430_CLKTRCTRL_MPU_MASK,
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};
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2011-09-14 22:01:21 +00:00
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static struct clockdomain neon_clkdm = {
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.name = "neon_clkdm",
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.pwrdm = { .name = "neon_pwrdm" },
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.flags = CLKDM_CAN_HWSUP_SWSUP,
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.wkdep_srcs = neon_wkdeps,
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.clktrctrl_mask = OMAP3430_CLKTRCTRL_NEON_MASK,
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};
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static struct clockdomain iva2_clkdm = {
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.name = "iva2_clkdm",
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.pwrdm = { .name = "iva2_pwrdm" },
|
2014-03-06 00:24:11 +00:00
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.flags = CLKDM_CAN_SWSUP,
|
2011-09-14 22:01:21 +00:00
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|
|
.dep_bit = OMAP3430_PM_WKDEP_MPU_EN_IVA2_SHIFT,
|
|
|
|
.wkdep_srcs = iva2_wkdeps,
|
|
|
|
.clktrctrl_mask = OMAP3430_CLKTRCTRL_IVA2_MASK,
|
|
|
|
};
|
|
|
|
|
|
|
|
static struct clockdomain gfx_3430es1_clkdm = {
|
|
|
|
.name = "gfx_clkdm",
|
|
|
|
.pwrdm = { .name = "gfx_pwrdm" },
|
|
|
|
.flags = CLKDM_CAN_HWSUP_SWSUP,
|
|
|
|
.wkdep_srcs = gfx_sgx_3xxx_wkdeps,
|
|
|
|
.sleepdep_srcs = gfx_sgx_sleepdeps,
|
|
|
|
.clktrctrl_mask = OMAP3430ES1_CLKTRCTRL_GFX_MASK,
|
|
|
|
};
|
|
|
|
|
|
|
|
static struct clockdomain sgx_clkdm = {
|
|
|
|
.name = "sgx_clkdm",
|
|
|
|
.pwrdm = { .name = "sgx_pwrdm" },
|
|
|
|
.flags = CLKDM_CAN_HWSUP_SWSUP,
|
|
|
|
.wkdep_srcs = gfx_sgx_3xxx_wkdeps,
|
|
|
|
.sleepdep_srcs = gfx_sgx_sleepdeps,
|
|
|
|
.clktrctrl_mask = OMAP3430ES2_CLKTRCTRL_SGX_MASK,
|
|
|
|
};
|
|
|
|
|
2012-04-19 20:16:46 +00:00
|
|
|
static struct clockdomain sgx_am35x_clkdm = {
|
|
|
|
.name = "sgx_clkdm",
|
|
|
|
.pwrdm = { .name = "sgx_pwrdm" },
|
|
|
|
.flags = CLKDM_CAN_HWSUP_SWSUP,
|
|
|
|
.wkdep_srcs = gfx_sgx_am35x_wkdeps,
|
|
|
|
.sleepdep_srcs = gfx_sgx_sleepdeps,
|
|
|
|
.clktrctrl_mask = OMAP3430ES2_CLKTRCTRL_SGX_MASK,
|
|
|
|
};
|
|
|
|
|
2011-09-14 22:01:21 +00:00
|
|
|
/*
|
|
|
|
* The die-to-die clockdomain was documented in the 34xx ES1 TRM, but
|
|
|
|
* then that information was removed from the 34xx ES2+ TRM. It is
|
|
|
|
* unclear whether the core is still there, but the clockdomain logic
|
|
|
|
* is there, and must be programmed to an appropriate state if the
|
|
|
|
* CORE clockdomain is to become inactive.
|
|
|
|
*/
|
|
|
|
static struct clockdomain d2d_clkdm = {
|
|
|
|
.name = "d2d_clkdm",
|
|
|
|
.pwrdm = { .name = "core_pwrdm" },
|
|
|
|
.flags = CLKDM_CAN_HWSUP_SWSUP,
|
|
|
|
.clktrctrl_mask = OMAP3430ES1_CLKTRCTRL_D2D_MASK,
|
|
|
|
};
|
|
|
|
|
|
|
|
/*
|
|
|
|
* XXX add usecounting for clkdm dependencies, otherwise the presence
|
|
|
|
* of a single dep bit for core_l3_3xxx_clkdm and core_l4_3xxx_clkdm
|
|
|
|
* could cause trouble
|
|
|
|
*/
|
|
|
|
static struct clockdomain core_l3_3xxx_clkdm = {
|
|
|
|
.name = "core_l3_clkdm",
|
|
|
|
.pwrdm = { .name = "core_pwrdm" },
|
|
|
|
.flags = CLKDM_CAN_HWSUP,
|
|
|
|
.dep_bit = OMAP3430_EN_CORE_SHIFT,
|
|
|
|
.clktrctrl_mask = OMAP3430_CLKTRCTRL_L3_MASK,
|
|
|
|
};
|
|
|
|
|
|
|
|
/*
|
|
|
|
* XXX add usecounting for clkdm dependencies, otherwise the presence
|
|
|
|
* of a single dep bit for core_l3_3xxx_clkdm and core_l4_3xxx_clkdm
|
|
|
|
* could cause trouble
|
|
|
|
*/
|
|
|
|
static struct clockdomain core_l4_3xxx_clkdm = {
|
|
|
|
.name = "core_l4_clkdm",
|
|
|
|
.pwrdm = { .name = "core_pwrdm" },
|
|
|
|
.flags = CLKDM_CAN_HWSUP,
|
|
|
|
.dep_bit = OMAP3430_EN_CORE_SHIFT,
|
|
|
|
.clktrctrl_mask = OMAP3430_CLKTRCTRL_L4_MASK,
|
|
|
|
};
|
|
|
|
|
|
|
|
/* Another case of bit name collisions between several registers: EN_DSS */
|
|
|
|
static struct clockdomain dss_3xxx_clkdm = {
|
|
|
|
.name = "dss_clkdm",
|
|
|
|
.pwrdm = { .name = "dss_pwrdm" },
|
|
|
|
.flags = CLKDM_CAN_HWSUP_SWSUP,
|
|
|
|
.dep_bit = OMAP3430_PM_WKDEP_MPU_EN_DSS_SHIFT,
|
|
|
|
.wkdep_srcs = dss_wkdeps,
|
|
|
|
.sleepdep_srcs = dss_sleepdeps,
|
|
|
|
.clktrctrl_mask = OMAP3430_CLKTRCTRL_DSS_MASK,
|
|
|
|
};
|
|
|
|
|
2012-04-19 20:16:46 +00:00
|
|
|
static struct clockdomain dss_am35x_clkdm = {
|
|
|
|
.name = "dss_clkdm",
|
|
|
|
.pwrdm = { .name = "dss_pwrdm" },
|
|
|
|
.flags = CLKDM_CAN_HWSUP_SWSUP,
|
|
|
|
.dep_bit = OMAP3430_PM_WKDEP_MPU_EN_DSS_SHIFT,
|
|
|
|
.wkdep_srcs = dss_am35x_wkdeps,
|
|
|
|
.sleepdep_srcs = dss_am35x_sleepdeps,
|
|
|
|
.clktrctrl_mask = OMAP3430_CLKTRCTRL_DSS_MASK,
|
|
|
|
};
|
|
|
|
|
2011-09-14 22:01:21 +00:00
|
|
|
static struct clockdomain cam_clkdm = {
|
|
|
|
.name = "cam_clkdm",
|
|
|
|
.pwrdm = { .name = "cam_pwrdm" },
|
|
|
|
.flags = CLKDM_CAN_HWSUP_SWSUP,
|
|
|
|
.wkdep_srcs = cam_wkdeps,
|
|
|
|
.sleepdep_srcs = cam_sleepdeps,
|
|
|
|
.clktrctrl_mask = OMAP3430_CLKTRCTRL_CAM_MASK,
|
|
|
|
};
|
|
|
|
|
|
|
|
static struct clockdomain usbhost_clkdm = {
|
|
|
|
.name = "usbhost_clkdm",
|
|
|
|
.pwrdm = { .name = "usbhost_pwrdm" },
|
|
|
|
.flags = CLKDM_CAN_HWSUP_SWSUP,
|
|
|
|
.wkdep_srcs = usbhost_wkdeps,
|
|
|
|
.sleepdep_srcs = usbhost_sleepdeps,
|
|
|
|
.clktrctrl_mask = OMAP3430ES2_CLKTRCTRL_USBHOST_MASK,
|
|
|
|
};
|
|
|
|
|
2012-04-19 20:16:46 +00:00
|
|
|
static struct clockdomain usbhost_am35x_clkdm = {
|
|
|
|
.name = "usbhost_clkdm",
|
|
|
|
.pwrdm = { .name = "core_pwrdm" },
|
|
|
|
.flags = CLKDM_CAN_HWSUP_SWSUP,
|
|
|
|
.wkdep_srcs = usbhost_am35x_wkdeps,
|
|
|
|
.sleepdep_srcs = usbhost_am35x_sleepdeps,
|
|
|
|
.clktrctrl_mask = OMAP3430ES2_CLKTRCTRL_USBHOST_MASK,
|
|
|
|
};
|
|
|
|
|
2011-09-14 22:01:21 +00:00
|
|
|
static struct clockdomain per_clkdm = {
|
|
|
|
.name = "per_clkdm",
|
|
|
|
.pwrdm = { .name = "per_pwrdm" },
|
|
|
|
.flags = CLKDM_CAN_HWSUP_SWSUP,
|
|
|
|
.dep_bit = OMAP3430_EN_PER_SHIFT,
|
|
|
|
.wkdep_srcs = per_wkdeps,
|
|
|
|
.sleepdep_srcs = per_sleepdeps,
|
|
|
|
.clktrctrl_mask = OMAP3430_CLKTRCTRL_PER_MASK,
|
|
|
|
};
|
|
|
|
|
2012-04-19 20:16:46 +00:00
|
|
|
static struct clockdomain per_am35x_clkdm = {
|
|
|
|
.name = "per_clkdm",
|
|
|
|
.pwrdm = { .name = "per_pwrdm" },
|
|
|
|
.flags = CLKDM_CAN_HWSUP_SWSUP,
|
|
|
|
.dep_bit = OMAP3430_EN_PER_SHIFT,
|
|
|
|
.wkdep_srcs = per_am35x_wkdeps,
|
|
|
|
.sleepdep_srcs = per_am35x_sleepdeps,
|
|
|
|
.clktrctrl_mask = OMAP3430_CLKTRCTRL_PER_MASK,
|
|
|
|
};
|
|
|
|
|
2011-09-14 22:01:21 +00:00
|
|
|
static struct clockdomain emu_clkdm = {
|
|
|
|
.name = "emu_clkdm",
|
|
|
|
.pwrdm = { .name = "emu_pwrdm" },
|
ARM: OMAP2+: clockdomain/hwmod: add workaround for EMU clockdomain idle problems
The idle status of the IP blocks and clocks inside the EMU clockdomain
isn't taken into account by the PRCM hardware when deciding whether
the clockdomain is idle. Add a workaround flag in the clockdomain
code, CLKDM_MISSING_IDLE_REPORTING, to deal with this problem, and add
the code necessary to support it.
If CLKDM_MISSING_IDLE_REPORTING is set on a clockdomain, the
clockdomain will be forced active whenever an IP block inside that
clockdomain is in use, even if the clockdomain supports
hardware-supervised idle. When the kernel indicates that the last
active IP block inside the clockdomain is no longer used, the
clockdomain will be forced idle, or, if that mode is not supported in
the hardware, it will be placed into hardware-supervised idle.
This patch is an equal collaboration with Jon Hunter
<jon-hunter@ti.com>. Ming Lei <ming.lei@canonical.com>, Will Deacon
<will.deacon@arm.com>, Madhav Vij <mvij@ti.com>, Kevin Hilman
<khilman@ti.com>, Benoît Cousson <b-cousson@ti.com>, and Santosh
Shilimkar <santosh.shilimkar@ti.com> all made essential contributions
to the understanding of EMU clockdomain power management on OMAP.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Jon Hunter <jon-hunter@ti.com>
Cc: Ming Lei <ming.lei@canonical.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Madhav Vij <mvij@ti.com>
Cc: Kevin Hilman <khilman@ti.com>
Cc: Benoît Cousson <b-cousson@ti.com>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Tested-by: Jon Hunter <jon-hunter@ti.com>
2012-09-23 23:28:28 +00:00
|
|
|
.flags = (CLKDM_CAN_ENABLE_AUTO | CLKDM_CAN_SWSUP |
|
|
|
|
CLKDM_MISSING_IDLE_REPORTING),
|
2011-09-14 22:01:21 +00:00
|
|
|
.clktrctrl_mask = OMAP3430_CLKTRCTRL_EMU_MASK,
|
|
|
|
};
|
|
|
|
|
|
|
|
static struct clockdomain dpll1_clkdm = {
|
|
|
|
.name = "dpll1_clkdm",
|
|
|
|
.pwrdm = { .name = "dpll1_pwrdm" },
|
|
|
|
};
|
|
|
|
|
|
|
|
static struct clockdomain dpll2_clkdm = {
|
|
|
|
.name = "dpll2_clkdm",
|
|
|
|
.pwrdm = { .name = "dpll2_pwrdm" },
|
|
|
|
};
|
|
|
|
|
|
|
|
static struct clockdomain dpll3_clkdm = {
|
|
|
|
.name = "dpll3_clkdm",
|
|
|
|
.pwrdm = { .name = "dpll3_pwrdm" },
|
|
|
|
};
|
|
|
|
|
|
|
|
static struct clockdomain dpll4_clkdm = {
|
|
|
|
.name = "dpll4_clkdm",
|
|
|
|
.pwrdm = { .name = "dpll4_pwrdm" },
|
|
|
|
};
|
|
|
|
|
|
|
|
static struct clockdomain dpll5_clkdm = {
|
|
|
|
.name = "dpll5_clkdm",
|
|
|
|
.pwrdm = { .name = "dpll5_pwrdm" },
|
|
|
|
};
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Clockdomain hwsup dependencies
|
|
|
|
*/
|
|
|
|
|
|
|
|
static struct clkdm_autodep clkdm_autodeps[] = {
|
|
|
|
{
|
|
|
|
.clkdm = { .name = "mpu_clkdm" },
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.clkdm = { .name = "iva2_clkdm" },
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.clkdm = { .name = NULL },
|
|
|
|
}
|
|
|
|
};
|
|
|
|
|
2012-04-19 20:16:46 +00:00
|
|
|
static struct clkdm_autodep clkdm_am35x_autodeps[] = {
|
|
|
|
{
|
|
|
|
.clkdm = { .name = "mpu_clkdm" },
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.clkdm = { .name = NULL },
|
|
|
|
}
|
|
|
|
};
|
|
|
|
|
2011-09-14 22:01:21 +00:00
|
|
|
/*
|
|
|
|
*
|
|
|
|
*/
|
|
|
|
|
2012-04-19 20:16:46 +00:00
|
|
|
static struct clockdomain *clockdomains_common[] __initdata = {
|
2011-09-14 22:01:21 +00:00
|
|
|
&wkup_common_clkdm,
|
|
|
|
&neon_clkdm,
|
|
|
|
&core_l3_3xxx_clkdm,
|
|
|
|
&core_l4_3xxx_clkdm,
|
|
|
|
&emu_clkdm,
|
|
|
|
&dpll1_clkdm,
|
|
|
|
&dpll3_clkdm,
|
|
|
|
&dpll4_clkdm,
|
|
|
|
NULL
|
|
|
|
};
|
|
|
|
|
2012-04-19 20:16:46 +00:00
|
|
|
static struct clockdomain *clockdomains_omap3430[] __initdata = {
|
|
|
|
&mpu_3xxx_clkdm,
|
|
|
|
&iva2_clkdm,
|
|
|
|
&d2d_clkdm,
|
|
|
|
&dss_3xxx_clkdm,
|
|
|
|
&cam_clkdm,
|
|
|
|
&per_clkdm,
|
|
|
|
&dpll2_clkdm,
|
|
|
|
NULL
|
|
|
|
};
|
|
|
|
|
2011-09-14 22:01:21 +00:00
|
|
|
static struct clockdomain *clockdomains_omap3430es1[] __initdata = {
|
|
|
|
&gfx_3430es1_clkdm,
|
|
|
|
NULL,
|
|
|
|
};
|
|
|
|
|
|
|
|
static struct clockdomain *clockdomains_omap3430es2plus[] __initdata = {
|
|
|
|
&sgx_clkdm,
|
|
|
|
&dpll5_clkdm,
|
|
|
|
&usbhost_clkdm,
|
|
|
|
NULL,
|
|
|
|
};
|
|
|
|
|
2012-04-19 20:16:46 +00:00
|
|
|
static struct clockdomain *clockdomains_am35x[] __initdata = {
|
|
|
|
&mpu_am35x_clkdm,
|
|
|
|
&sgx_am35x_clkdm,
|
|
|
|
&dss_am35x_clkdm,
|
|
|
|
&per_am35x_clkdm,
|
|
|
|
&usbhost_am35x_clkdm,
|
|
|
|
&dpll5_clkdm,
|
|
|
|
NULL
|
|
|
|
};
|
|
|
|
|
2011-09-14 22:01:21 +00:00
|
|
|
void __init omap3xxx_clockdomains_init(void)
|
|
|
|
{
|
|
|
|
struct clockdomain **sc;
|
2012-04-19 20:16:46 +00:00
|
|
|
unsigned int rev;
|
2011-09-14 22:01:21 +00:00
|
|
|
|
|
|
|
if (!cpu_is_omap34xx())
|
|
|
|
return;
|
|
|
|
|
|
|
|
clkdm_register_platform_funcs(&omap3_clkdm_operations);
|
2012-04-19 20:16:46 +00:00
|
|
|
clkdm_register_clkdms(clockdomains_common);
|
2011-09-14 22:01:21 +00:00
|
|
|
|
2012-04-19 20:16:46 +00:00
|
|
|
rev = omap_rev();
|
2011-09-14 22:01:21 +00:00
|
|
|
|
2012-04-19 20:16:46 +00:00
|
|
|
if (rev == AM35XX_REV_ES1_0 || rev == AM35XX_REV_ES1_1) {
|
|
|
|
clkdm_register_clkdms(clockdomains_am35x);
|
|
|
|
clkdm_register_autodeps(clkdm_am35x_autodeps);
|
|
|
|
} else {
|
|
|
|
clkdm_register_clkdms(clockdomains_omap3430);
|
|
|
|
|
|
|
|
sc = (rev == OMAP3430_REV_ES1_0) ?
|
|
|
|
clockdomains_omap3430es1 : clockdomains_omap3430es2plus;
|
|
|
|
|
|
|
|
clkdm_register_clkdms(sc);
|
|
|
|
clkdm_register_autodeps(clkdm_autodeps);
|
|
|
|
}
|
2011-09-14 22:01:21 +00:00
|
|
|
|
|
|
|
clkdm_complete_init();
|
|
|
|
}
|