cregit-Linux how code gets into the kernel

Release 4.17 arch/arm/mach-imx/iomux-v3.c

/*
 * Copyright 2004-2006 Freescale Semiconductor, Inc. All Rights Reserved.
 * Copyright (C) 2008 by Sascha Hauer <kernel@pengutronix.de>
 * Copyright (C) 2009 by Jan Weitzel Phytec Messtechnik GmbH,
 *                       <armlinux@phytec.de>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA 02110-1301, USA.
 */
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/string.h>
#include <linux/gpio.h>

#include <asm/mach/map.h>

#include "hardware.h"
#include "iomux-v3.h"


static void __iomem *base;

/*
 * configures a single pad in the iomuxer
 */

int mxc_iomux_v3_setup_pad(iomux_v3_cfg_t pad) { u32 mux_ctrl_ofs = (pad & MUX_CTRL_OFS_MASK) >> MUX_CTRL_OFS_SHIFT; u32 mux_mode = (pad & MUX_MODE_MASK) >> MUX_MODE_SHIFT; u32 sel_input_ofs = (pad & MUX_SEL_INPUT_OFS_MASK) >> MUX_SEL_INPUT_OFS_SHIFT; u32 sel_input = (pad & MUX_SEL_INPUT_MASK) >> MUX_SEL_INPUT_SHIFT; u32 pad_ctrl_ofs = (pad & MUX_PAD_CTRL_OFS_MASK) >> MUX_PAD_CTRL_OFS_SHIFT; u32 pad_ctrl = (pad & MUX_PAD_CTRL_MASK) >> MUX_PAD_CTRL_SHIFT; if (mux_ctrl_ofs) imx_writel(mux_mode, base + mux_ctrl_ofs); if (sel_input_ofs) imx_writel(sel_input, base + sel_input_ofs); if (!(pad_ctrl & NO_PAD_CTRL) && pad_ctrl_ofs) imx_writel(pad_ctrl, base + pad_ctrl_ofs); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Lothar Waßmann7762.60%240.00%
Sascha Hauer4334.96%240.00%
Johannes Berg32.44%120.00%
Total123100.00%5100.00%


int mxc_iomux_v3_setup_multiple_pads(const iomux_v3_cfg_t *pad_list, unsigned count) { const iomux_v3_cfg_t *p = pad_list; int i; int ret; for (i = 0; i < count; i++) { ret = mxc_iomux_v3_setup_pad(*p); if (ret) return ret; p++; } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Sascha Hauer5791.94%240.00%
Lothar Waßmann34.84%240.00%
Uwe Kleine-König23.23%120.00%
Total62100.00%5100.00%


void mxc_iomux_v3_init(void __iomem *iomux_v3_base) { base = iomux_v3_base; }

Contributors

PersonTokensPropCommitsCommitProp
Sascha Hauer14100.00%1100.00%
Total14100.00%1100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Sascha Hauer14561.97%333.33%
Lothar Waßmann8134.62%222.22%
Shawn Guo31.28%222.22%
Johannes Berg31.28%111.11%
Uwe Kleine-König20.85%111.11%
Total234100.00%9100.00%
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