2 * OMAP SoC specific OPP wrapper function
4 * Copyright (C) 2009-2010 Texas Instruments Incorporated - http://www.ti.com/
7 * Copyright (C) 2010 Nokia Corporation.
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
12 * published by the Free Software Foundation.
14 * This program is distributed "as is" WITHOUT ANY WARRANTY of any
15 * kind, whether express or implied; without even the implied warranty
16 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 #include <linux/module.h>
20 #include <linux/opp.h>
22 #include <plat/omap_device.h>
24 #include "omap_opp_data.h"
26 /* Temp variable to allow multiple calls */
27 static u8 __initdata omap_table_init;
30 * omap_init_opp_table() - Initialize opp table as per the CPU type
31 * @opp_def: opp default list for this silicon
32 * @opp_def_size: number of opp entries for this silicon
34 * Register the initial OPP table with the OPP library based on the CPU
35 * type. This is meant to be used only by SoC specific registration.
37 int __init omap_init_opp_table(struct omap_opp_def *opp_def,
42 if (!opp_def || !opp_def_size) {
43 pr_err("%s: invalid params!\n", __func__);
48 * Initialize only if not already initialized even if the previous
49 * call failed, because, no reason we'd succeed again.
55 /* Lets now register with OPP library */
56 for (i = 0; i < opp_def_size; i++, opp_def++) {
57 struct omap_hwmod *oh;
60 if (!opp_def->hwmod_name) {
61 pr_err("%s: NULL name of omap_hwmod, failing [%d].\n",
65 oh = omap_hwmod_lookup(opp_def->hwmod_name);
67 pr_debug("%s: no hwmod or odev for %s, [%d] cannot add OPPs.\n",
68 __func__, opp_def->hwmod_name, i);
71 dev = &oh->od->pdev->dev;
73 r = opp_add(dev, opp_def->freq, opp_def->u_volt);
75 dev_err(dev, "%s: add OPP %ld failed for %s [%d] result=%d\n",
76 __func__, opp_def->freq,
77 opp_def->hwmod_name, i, r);
79 if (!opp_def->default_available)
80 r = opp_disable(dev, opp_def->freq);
82 dev_err(dev, "%s: disable %ld failed for %s [%d] result=%d\n",
83 __func__, opp_def->freq,
84 opp_def->hwmod_name, i, r);