Commit e3c57087ced40ed6a510dc771aa952fa1ebded01
Committed by
Afzal Mohammed
1 parent
f92e7d1144
Exists in
master
OMAP2+: OPP: Do not skip scanning OPP table if one of them is invalid
Let omap_init_opp_table run through all the OPP's instead of returning on seeing the first invalid one. Skip the invalid ones and give a fair chance to the rest to get registered, if they are found to be valid. For every invalid entry in the OPP table, instead of a pr_warn, do a WARN so it gets the attention it needs. Signed-off-by: Rajendra Nayak <rnayak@ti.com> [vaibhav.bedia@ti.com: Pull in for AM33xx] Signed-off-by: Vaibhav Bedia <vaibhav.bedia@ti.com>
Showing 1 changed file with 6 additions and 5 deletions Inline Diff
arch/arm/mach-omap2/opp.c
1 | /* | 1 | /* |
2 | * OMAP SoC specific OPP wrapper function | 2 | * OMAP SoC specific OPP wrapper function |
3 | * | 3 | * |
4 | * Copyright (C) 2009-2010 Texas Instruments Incorporated - http://www.ti.com/ | 4 | * Copyright (C) 2009-2010 Texas Instruments Incorporated - http://www.ti.com/ |
5 | * Nishanth Menon | 5 | * Nishanth Menon |
6 | * Kevin Hilman | 6 | * Kevin Hilman |
7 | * Copyright (C) 2010 Nokia Corporation. | 7 | * Copyright (C) 2010 Nokia Corporation. |
8 | * Eduardo Valentin | 8 | * Eduardo Valentin |
9 | * | 9 | * |
10 | * This program is free software; you can redistribute it and/or modify | 10 | * This program is free software; you can redistribute it and/or modify |
11 | * it under the terms of the GNU General Public License version 2 as | 11 | * it under the terms of the GNU General Public License version 2 as |
12 | * published by the Free Software Foundation. | 12 | * published by the Free Software Foundation. |
13 | * | 13 | * |
14 | * This program is distributed "as is" WITHOUT ANY WARRANTY of any | 14 | * This program is distributed "as is" WITHOUT ANY WARRANTY of any |
15 | * kind, whether express or implied; without even the implied warranty | 15 | * kind, whether express or implied; without even the implied warranty |
16 | * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | 16 | * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
17 | * GNU General Public License for more details. | 17 | * GNU General Public License for more details. |
18 | */ | 18 | */ |
19 | #include <linux/module.h> | 19 | #include <linux/module.h> |
20 | #include <linux/opp.h> | 20 | #include <linux/opp.h> |
21 | 21 | ||
22 | #include <plat/omap_device.h> | 22 | #include <plat/omap_device.h> |
23 | #include <plat/dvfs.h> | 23 | #include <plat/dvfs.h> |
24 | 24 | ||
25 | #include "omap_opp_data.h" | 25 | #include "omap_opp_data.h" |
26 | 26 | ||
27 | /* Temp variable to allow multiple calls */ | 27 | /* Temp variable to allow multiple calls */ |
28 | static u8 __initdata omap_table_init; | 28 | static u8 __initdata omap_table_init; |
29 | 29 | ||
30 | /** | 30 | /** |
31 | * omap_init_opp_table() - Initialize opp table as per the CPU type | 31 | * omap_init_opp_table() - Initialize opp table as per the CPU type |
32 | * @opp_def: opp default list for this silicon | 32 | * @opp_def: opp default list for this silicon |
33 | * @opp_def_size: number of opp entries for this silicon | 33 | * @opp_def_size: number of opp entries for this silicon |
34 | * | 34 | * |
35 | * Register the initial OPP table with the OPP library based on the CPU | 35 | * Register the initial OPP table with the OPP library based on the CPU |
36 | * type. This is meant to be used only by SoC specific registration. | 36 | * type. This is meant to be used only by SoC specific registration. |
37 | */ | 37 | */ |
38 | int __init omap_init_opp_table(struct omap_opp_def *opp_def, | 38 | int __init omap_init_opp_table(struct omap_opp_def *opp_def, |
39 | u32 opp_def_size) | 39 | u32 opp_def_size) |
40 | { | 40 | { |
41 | int i, r; | 41 | int i, r; |
42 | 42 | ||
43 | if (!opp_def || !opp_def_size) { | 43 | if (!opp_def || !opp_def_size) { |
44 | pr_err("%s: invalid params!\n", __func__); | 44 | pr_err("%s: invalid params!\n", __func__); |
45 | return -EINVAL; | 45 | return -EINVAL; |
46 | } | 46 | } |
47 | 47 | ||
48 | /* | 48 | /* |
49 | * Initialize only if not already initialized even if the previous | 49 | * Initialize only if not already initialized even if the previous |
50 | * call failed, because, no reason we'd succeed again. | 50 | * call failed, because, no reason we'd succeed again. |
51 | */ | 51 | */ |
52 | if (omap_table_init) | 52 | if (omap_table_init) |
53 | return -EEXIST; | 53 | return -EEXIST; |
54 | omap_table_init = 1; | 54 | omap_table_init = 1; |
55 | 55 | ||
56 | /* Lets now register with OPP library */ | 56 | /* Lets now register with OPP library */ |
57 | for (i = 0; i < opp_def_size; i++) { | 57 | for (i = 0; i < opp_def_size; i++) { |
58 | struct omap_hwmod *oh; | 58 | struct omap_hwmod *oh; |
59 | struct device *dev; | 59 | struct device *dev; |
60 | 60 | ||
61 | if (!opp_def->hwmod_name) { | 61 | if (!opp_def->hwmod_name) { |
62 | pr_err("%s: NULL name of omap_hwmod, failing [%d].\n", | 62 | WARN(1, "%s: NULL name of omap_hwmod, failing" |
63 | __func__, i); | 63 | " [%d].\n", __func__, i); |
64 | return -EINVAL; | 64 | goto next; |
65 | } | 65 | } |
66 | oh = omap_hwmod_lookup(opp_def->hwmod_name); | 66 | oh = omap_hwmod_lookup(opp_def->hwmod_name); |
67 | if (!oh || !oh->od) { | 67 | if (!oh || !oh->od) { |
68 | pr_warn("%s: no hwmod or odev for %s, [%d] " | 68 | WARN(1, "%s: no hwmod or odev for %s, [%d] " |
69 | "cannot add OPPs.\n", __func__, | 69 | "cannot add OPPs.\n", __func__, |
70 | opp_def->hwmod_name, i); | 70 | opp_def->hwmod_name, i); |
71 | return -EINVAL; | 71 | goto next; |
72 | } | 72 | } |
73 | dev = &oh->od->pdev->dev; | 73 | dev = &oh->od->pdev->dev; |
74 | 74 | ||
75 | r = opp_add(dev, opp_def->freq, opp_def->u_volt); | 75 | r = opp_add(dev, opp_def->freq, opp_def->u_volt); |
76 | if (r) { | 76 | if (r) { |
77 | dev_err(dev, "%s: add OPP %ld failed for %s [%d] " | 77 | dev_err(dev, "%s: add OPP %ld failed for %s [%d] " |
78 | "result=%d\n", | 78 | "result=%d\n", |
79 | __func__, opp_def->freq, | 79 | __func__, opp_def->freq, |
80 | opp_def->hwmod_name, i, r); | 80 | opp_def->hwmod_name, i, r); |
81 | } else { | 81 | } else { |
82 | if (!opp_def->default_available) | 82 | if (!opp_def->default_available) |
83 | r = opp_disable(dev, opp_def->freq); | 83 | r = opp_disable(dev, opp_def->freq); |
84 | if (r) | 84 | if (r) |
85 | dev_err(dev, "%s: disable %ld failed for %s " | 85 | dev_err(dev, "%s: disable %ld failed for %s " |
86 | "[%d] result=%d\n", | 86 | "[%d] result=%d\n", |
87 | __func__, opp_def->freq, | 87 | __func__, opp_def->freq, |
88 | opp_def->hwmod_name, i, r); | 88 | opp_def->hwmod_name, i, r); |
89 | 89 | ||
90 | r = omap_dvfs_register_device(dev, | 90 | r = omap_dvfs_register_device(dev, |
91 | opp_def->voltdm_name, opp_def->clk_name); | 91 | opp_def->voltdm_name, opp_def->clk_name); |
92 | if (r) | 92 | if (r) |
93 | dev_err(dev, "%s:%s:err dvfs register %d %d\n", | 93 | dev_err(dev, "%s:%s:err dvfs register %d %d\n", |
94 | __func__, opp_def->hwmod_name, r, i); | 94 | __func__, opp_def->hwmod_name, r, i); |
95 | } | 95 | } |
96 | next: | ||
96 | opp_def++; | 97 | opp_def++; |
97 | } | 98 | } |
98 | 99 | ||
99 | return 0; | 100 | return 0; |
100 | } | 101 | } |
101 | 102 |