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fcebddb9d8
The IS_ENABLED() macro checks if a Kconfig symbol has been enabled either built-in or as a module, use that macro instead of open coding the same. Using the macro makes the code more readable by helping abstract away some of the Kconfig built-in and module enable details. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
68 lines
1.5 KiB
C
68 lines
1.5 KiB
C
/*
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* linux/arch/arm/mach-omap1/board-sx1-mmc.c
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*
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* Copyright (C) 2007 Instituto Nokia de Tecnologia - INdT
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* Author: Carlos Eduardo Aguiar <carlos.aguiar@indt.org.br>
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*
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* This code is based on linux/arch/arm/mach-omap1/board-h2-mmc.c, which is:
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* Copyright (C) 2007 Instituto Nokia de Tecnologia - INdT
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/gpio.h>
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#include <linux/platform_device.h>
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#include <mach/hardware.h>
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#include "board-sx1.h"
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#include "mmc.h"
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#if IS_ENABLED(CONFIG_MMC_OMAP)
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static int mmc_set_power(struct device *dev, int slot, int power_on,
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int vdd)
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{
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int err;
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u8 dat = 0;
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err = sx1_i2c_read_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, &dat);
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if (err < 0)
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return err;
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if (power_on)
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dat |= SOFIA_MMC_POWER;
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else
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dat &= ~SOFIA_MMC_POWER;
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return sx1_i2c_write_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, dat);
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}
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/* Cover switch is at OMAP_MPUIO(3) */
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static struct omap_mmc_platform_data mmc1_data = {
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.nr_slots = 1,
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.slots[0] = {
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.set_power = mmc_set_power,
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.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
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.name = "mmcblk",
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},
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};
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static struct omap_mmc_platform_data *mmc_data[OMAP15XX_NR_MMC];
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void __init sx1_mmc_init(void)
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{
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mmc_data[0] = &mmc1_data;
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omap1_init_mmc(mmc_data, OMAP15XX_NR_MMC);
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}
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#else
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void __init sx1_mmc_init(void)
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{
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}
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#endif
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