cregit-Linux how code gets into the kernel

Release 4.7 drivers/mfd/tc6387xb.c

Directory: drivers/mfd
/*
 * Toshiba TC6387XB support
 * Copyright (c) 2005 Ian Molton
 *
 * 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.
 *
 * This file contains TC6387XB base support.
 *
 */

#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/mfd/core.h>
#include <linux/mfd/tmio.h>
#include <linux/mfd/tc6387xb.h>
#include <linux/slab.h>

enum {
	
TC6387XB_CELL_MMC,
};


struct tc6387xb {
	
void __iomem *scr;
	
struct clk *clk32k;
	
struct resource rscr;
};


static struct resource tc6387xb_mmc_resources[] = {
	{
		.start = 0x800,
		.end   = 0x9ff,
		.flags = IORESOURCE_MEM,
        },
	{
		.start = 0,
		.end   = 0,
		.flags = IORESOURCE_IRQ,
        },
};

/*--------------------------------------------------------------------------*/

#ifdef CONFIG_PM

static int tc6387xb_suspend(struct platform_device *dev, pm_message_t state) { struct tc6387xb *tc6387xb = platform_get_drvdata(dev); struct tc6387xb_platform_data *pdata = dev_get_platdata(&dev->dev); if (pdata && pdata->suspend) pdata->suspend(dev); clk_disable_unprepare(tc6387xb->clk32k); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
ian moltonian molton5791.94%360.00%
jingoo hanjingoo han46.45%120.00%
dmitry eremin-baryshkovdmitry eremin-baryshkov11.61%120.00%
Total62100.00%5100.00%


static int tc6387xb_resume(struct platform_device *dev) { struct tc6387xb *tc6387xb = platform_get_drvdata(dev); struct tc6387xb_platform_data *pdata = dev_get_platdata(&dev->dev); clk_prepare_enable(tc6387xb->clk32k); if (pdata && pdata->resume) pdata->resume(dev); tmio_core_mmc_resume(tc6387xb->scr + 0x200, 0, tc6387xb_mmc_resources[0].start & 0xfffe); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
ian moltonian molton7493.67%360.00%
jingoo hanjingoo han45.06%120.00%
dmitry eremin-baryshkovdmitry eremin-baryshkov11.27%120.00%
Total79100.00%5100.00%

#else #define tc6387xb_suspend NULL #define tc6387xb_resume NULL #endif /*--------------------------------------------------------------------------*/
static void tc6387xb_mmc_pwr(struct platform_device *mmc, int state) { struct platform_device *dev = to_platform_device(mmc->dev.parent); struct tc6387xb *tc6387xb = platform_get_drvdata(dev); tmio_core_mmc_pwr(tc6387xb->scr + 0x200, 0, state); }

Contributors

PersonTokensPropCommitsCommitProp
ian moltonian molton51100.00%1100.00%
Total51100.00%1100.00%


static void tc6387xb_mmc_clk_div(struct platform_device *mmc, int state) { struct platform_device *dev = to_platform_device(mmc->dev.parent); struct tc6387xb *tc6387xb = platform_get_drvdata(dev); tmio_core_mmc_clk_div(tc6387xb->scr + 0x200, 0, state); }

Contributors

PersonTokensPropCommitsCommitProp
ian moltonian molton51100.00%1100.00%
Total51100.00%1100.00%


static int tc6387xb_mmc_enable(struct platform_device *mmc) { struct platform_device *dev = to_platform_device(mmc->dev.parent); struct tc6387xb *tc6387xb = platform_get_drvdata(dev); clk_prepare_enable(tc6387xb->clk32k); tmio_core_mmc_enable(tc6387xb->scr + 0x200, 0, tc6387xb_mmc_resources[0].start & 0xfffe); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
ian moltonian molton6498.46%375.00%
dmitry eremin-baryshkovdmitry eremin-baryshkov11.54%125.00%
Total65100.00%4100.00%


static int tc6387xb_mmc_disable(struct platform_device *mmc) { struct platform_device *dev = to_platform_device(mmc->dev.parent); struct tc6387xb *tc6387xb = platform_get_drvdata(dev); clk_disable_unprepare(tc6387xb->clk32k); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
ian moltonian molton4497.78%375.00%
dmitry eremin-baryshkovdmitry eremin-baryshkov12.22%125.00%
Total45100.00%4100.00%

static struct tmio_mmc_data tc6387xb_mmc_data = { .hclk = 24000000, .set_pwr = tc6387xb_mmc_pwr, .set_clk_div = tc6387xb_mmc_clk_div, }; /*--------------------------------------------------------------------------*/ static const struct mfd_cell tc6387xb_cells[] = { [TC6387XB_CELL_MMC] = { .name = "tmio-mmc", .enable = tc6387xb_mmc_enable, .disable = tc6387xb_mmc_disable, .platform_data = &tc6387xb_mmc_data, .pdata_size = sizeof(tc6387xb_mmc_data), .num_resources = ARRAY_SIZE(tc6387xb_mmc_resources), .resources = tc6387xb_mmc_resources, }, };
static int tc6387xb_probe(struct platform_device *dev) { struct tc6387xb_platform_data *pdata = dev_get_platdata(&dev->dev); struct resource *iomem, *rscr; struct clk *clk32k; struct tc6387xb *tc6387xb; int irq, ret; iomem = platform_get_resource(dev, IORESOURCE_MEM, 0); if (!iomem) return -EINVAL; tc6387xb = kzalloc(sizeof(*tc6387xb), GFP_KERNEL); if (!tc6387xb) return -ENOMEM; ret = platform_get_irq(dev, 0); if (ret >= 0) irq = ret; else goto err_no_irq; clk32k = clk_get(&dev->dev, "CLK_CK32K"); if (IS_ERR(clk32k)) { ret = PTR_ERR(clk32k); goto err_no_clk; } rscr = &tc6387xb->rscr; rscr->name = "tc6387xb-core"; rscr->start = iomem->start; rscr->end = iomem->start + 0xff; rscr->flags = IORESOURCE_MEM; ret = request_resource(iomem, rscr); if (ret) goto err_resource; tc6387xb->scr = ioremap(rscr->start, resource_size(rscr)); if (!tc6387xb->scr) { ret = -ENOMEM; goto err_ioremap; } tc6387xb->clk32k = clk32k; platform_set_drvdata(dev, tc6387xb); if (pdata && pdata->enable) pdata->enable(dev); dev_info(&dev->dev, "Toshiba tc6387xb initialised\n"); ret = mfd_add_devices(&dev->dev, dev->id, tc6387xb_cells, ARRAY_SIZE(tc6387xb_cells), iomem, irq, NULL); if (!ret) return 0; iounmap(tc6387xb->scr); err_ioremap: release_resource(&tc6387xb->rscr); err_resource: clk_put(clk32k); err_no_clk: err_no_irq: kfree(tc6387xb); return ret; }

Contributors

PersonTokensPropCommitsCommitProp
ian moltonian molton30690.53%333.33%
lee joneslee jones92.66%111.11%
axel linaxel lin72.07%111.11%
samuel ortizsamuel ortiz72.07%111.11%
jingoo hanjingoo han41.18%111.11%
joe perchesjoe perches30.89%111.11%
mark brownmark brown20.59%111.11%
Total338100.00%9100.00%


static int tc6387xb_remove(struct platform_device *dev) { struct tc6387xb *tc6387xb = platform_get_drvdata(dev); mfd_remove_devices(&dev->dev); iounmap(tc6387xb->scr); release_resource(&tc6387xb->rscr); clk_disable_unprepare(tc6387xb->clk32k); clk_put(tc6387xb->clk32k); kfree(tc6387xb); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
ian moltonian molton3959.09%250.00%
axel linaxel lin2639.39%125.00%
dmitry eremin-baryshkovdmitry eremin-baryshkov11.52%125.00%
Total66100.00%4100.00%

static struct platform_driver tc6387xb_platform_driver = { .driver = { .name = "tc6387xb", }, .probe = tc6387xb_probe, .remove = tc6387xb_remove, .suspend = tc6387xb_suspend, .resume = tc6387xb_resume, }; module_platform_driver(tc6387xb_platform_driver); MODULE_DESCRIPTION("Toshiba TC6387XB core driver"); MODULE_LICENSE("GPL v2"); MODULE_AUTHOR("Ian Molton"); MODULE_ALIAS("platform:tc6387xb");

Overall Contributors

PersonTokensPropCommitsCommitProp
ian moltonian molton90689.97%425.00%
axel linaxel lin333.28%16.25%
samuel ortizsamuel ortiz161.59%212.50%
philipp zabelphilipp zabel151.49%16.25%
jingoo hanjingoo han121.19%16.25%
lee joneslee jones90.89%16.25%
dmitry eremin-baryshkovdmitry eremin-baryshkov50.50%16.25%
mark brownmark brown40.40%212.50%
tejun heotejun heo30.30%16.25%
joe perchesjoe perches30.30%16.25%
geert uytterhoevengeert uytterhoeven10.10%16.25%
Total1007100.00%16100.00%
Directory: drivers/mfd
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
{% endraw %}