Release 4.7 arch/arm/mach-omap2/mcbsp.c
/*
* linux/arch/arm/mach-omap2/mcbsp.c
*
* Copyright (C) 2008 Instituto Nokia de Tecnologia
* Contact: Eduardo Valentin <eduardo.valentin@indt.org.br>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Multichannel mode not supported.
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/platform_data/asoc-ti-mcbsp.h>
#include <linux/pm_runtime.h>
#include <linux/omap-dma.h>
#include "soc.h"
#include "omap_device.h"
#include "clock.h"
/*
* FIXME: Find a mechanism to enable/disable runtime the McBSP ICLK autoidle.
* Sidetone needs non-gated ICLK and sidetone autoidle is broken.
*/
#include "cm3xxx.h"
#include "cm-regbits-34xx.h"
static struct clk *mcbsp_iclks[5];
static int omap3_enable_st_clock(unsigned int id, bool enable)
{
/*
* Sidetone uses McBSP ICLK - which must not idle when sidetones
* are enabled or sidetones start sounding ugly.
*/
if (enable)
return omap2_clk_deny_idle(mcbsp_iclks[id]);
else
return omap2_clk_allow_idle(mcbsp_iclks[id]);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| jarkko nikula | jarkko nikula | 23 | 62.16% | 1 | 50.00% |
| tero kristo | tero kristo | 14 | 37.84% | 1 | 50.00% |
| Total | 37 | 100.00% | 2 | 100.00% |
static int __init omap_init_mcbsp(struct omap_hwmod *oh, void *unused)
{
int id, count = 1;
char *name = "omap-mcbsp";
struct omap_hwmod *oh_device[2];
struct omap_mcbsp_platform_data *pdata = NULL;
struct platform_device *pdev;
char clk_name[11];
sscanf(oh->name, "mcbsp%d", &id);
pdata = kzalloc(sizeof(struct omap_mcbsp_platform_data), GFP_KERNEL);
if (!pdata) {
pr_err("%s: No memory for mcbsp\n", __func__);
return -ENOMEM;
}
pdata->reg_step = 4;
if (oh->class->rev < MCBSP_CONFIG_TYPE2) {
pdata->reg_size = 2;
} else {
pdata->reg_size = 4;
pdata->has_ccr = true;
}
if (oh->class->rev == MCBSP_CONFIG_TYPE2) {
/* The FIFO has 128 locations */
pdata->buffer_size = 0x80;
} else if (oh->class->rev == MCBSP_CONFIG_TYPE3) {
if (id == 2)
/* The FIFO has 1024 + 256 locations */
pdata->buffer_size = 0x500;
else
/* The FIFO has 128 locations */
pdata->buffer_size = 0x80;
} else if (oh->class->rev == MCBSP_CONFIG_TYPE4) {
/* The FIFO has 128 locations for all instances */
pdata->buffer_size = 0x80;
}
if (oh->class->rev >= MCBSP_CONFIG_TYPE3)
pdata->has_wakeup = true;
oh_device[0] = oh;
if (oh->dev_attr) {
oh_device[1] = omap_hwmod_lookup((
(struct omap_mcbsp_dev_attr *)(oh->dev_attr))->sidetone);
pdata->enable_st_clock = omap3_enable_st_clock;
sprintf(clk_name, "mcbsp%d_ick", id);
mcbsp_iclks[id] = clk_get(NULL, clk_name);
count++;
}
pdev = omap_device_build_ss(name, id, oh_device, count, pdata,
sizeof(*pdata));
kfree(pdata);
if (IS_ERR(pdev)) {
pr_err("%s: Can't build omap_device for %s:%s.\n", __func__,
name, oh->name);
return PTR_ERR(pdev);
}
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| kishon vijay abraham i | kishon vijay abraham i | 217 | 61.82% | 3 | 20.00% |
| jarkko nikula | jarkko nikula | 60 | 17.09% | 5 | 33.33% |
| peter ujfalusi | peter ujfalusi | 40 | 11.40% | 3 | 20.00% |
| tero kristo | tero kristo | 27 | 7.69% | 1 | 6.67% |
| kevin hilman | kevin hilman | 6 | 1.71% | 2 | 13.33% |
| lucas de marchi | lucas de marchi | 1 | 0.28% | 1 | 6.67% |
| Total | 351 | 100.00% | 15 | 100.00% |
static int __init omap2_mcbsp_init(void)
{
if (!of_have_populated_dt())
omap_hwmod_for_each_by_class("mcbsp", omap_init_mcbsp, NULL);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| eduardo valentin | eduardo valentin | 10 | 37.04% | 1 | 16.67% |
| kishon vijay abraham i | kishon vijay abraham i | 8 | 29.63% | 1 | 16.67% |
| peter ujfalusi | peter ujfalusi | 7 | 25.93% | 2 | 33.33% |
| janusz krzysztofik | janusz krzysztofik | 1 | 3.70% | 1 | 16.67% |
| chandra shekhar | chandra shekhar | 1 | 3.70% | 1 | 16.67% |
| Total | 27 | 100.00% | 6 | 100.00% |
omap_arch_initcall(omap2_mcbsp_init);
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| kishon vijay abraham i | kishon vijay abraham i | 227 | 47.39% | 3 | 11.11% |
| jarkko nikula | jarkko nikula | 89 | 18.58% | 5 | 18.52% |
| tero kristo | tero kristo | 53 | 11.06% | 1 | 3.70% |
| peter ujfalusi | peter ujfalusi | 50 | 10.44% | 5 | 18.52% |
| eduardo valentin | eduardo valentin | 37 | 7.72% | 1 | 3.70% |
| tony lindgren | tony lindgren | 7 | 1.46% | 3 | 11.11% |
| kevin hilman | kevin hilman | 6 | 1.25% | 2 | 7.41% |
| paul walmsley | paul walmsley | 3 | 0.63% | 2 | 7.41% |
| tejun heo | tejun heo | 3 | 0.63% | 1 | 3.70% |
| janusz krzysztofik | janusz krzysztofik | 1 | 0.21% | 1 | 3.70% |
| arnd bergmann | arnd bergmann | 1 | 0.21% | 1 | 3.70% |
| lucas de marchi | lucas de marchi | 1 | 0.21% | 1 | 3.70% |
| chandra shekhar | chandra shekhar | 1 | 0.21% | 1 | 3.70% |
| Total | 479 | 100.00% | 27 | 100.00% |
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