diff options
Diffstat (limited to 'drivers/misc/pmic_spi.c')
| -rw-r--r-- | drivers/misc/pmic_spi.c | 108 | 
1 files changed, 0 insertions, 108 deletions
diff --git a/drivers/misc/pmic_spi.c b/drivers/misc/pmic_spi.c deleted file mode 100644 index 5a0dd22e2..000000000 --- a/drivers/misc/pmic_spi.c +++ /dev/null @@ -1,108 +0,0 @@ -/* - * Copyright (C) 2011 Samsung Electronics - * Lukasz Majewski <l.majewski@samsung.com> - * - * (C) Copyright 2010 - * Stefano Babic, DENX Software Engineering, sbabic@denx.de - * - * (C) Copyright 2008-2009 Freescale Semiconductor, Inc. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * 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., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include <common.h> -#include <linux/types.h> -#include <pmic.h> -#include <spi.h> - -static struct spi_slave *slave; - -void pmic_spi_free(struct spi_slave *slave) -{ -	if (slave) -		spi_free_slave(slave); -} - -struct spi_slave *pmic_spi_probe(struct pmic *p) -{ -	return spi_setup_slave(p->bus, -		p->hw.spi.cs, -		p->hw.spi.clk, -		p->hw.spi.mode); -} - -static u32 pmic_reg(struct pmic *p, u32 reg, u32 *val, u32 write) -{ -	u32 pmic_tx, pmic_rx; -	u32 tmp; - -	if (!slave) { -		slave = pmic_spi_probe(p); - -		if (!slave) -			return -1; -	} - -	if (check_reg(reg)) -		return -1; - -	if (spi_claim_bus(slave)) -		return -1; - -	pmic_tx = p->hw.spi.prepare_tx(reg, val, write); - -	tmp = cpu_to_be32(pmic_tx); - -	if (spi_xfer(slave, pmic_spi_bitlen, &tmp, &pmic_rx, -			pmic_spi_flags)) { -		spi_release_bus(slave); -		return -1; -	} - -	if (write) { -		pmic_tx = p->hw.spi.prepare_tx(reg, val, 0); -		tmp = cpu_to_be32(pmic_tx); -		if (spi_xfer(slave, pmic_spi_bitlen, &tmp, &pmic_rx, -			pmic_spi_flags)) { -			spi_release_bus(slave); -			return -1; -		} -	} - -	spi_release_bus(slave); -	*val = cpu_to_be32(pmic_rx); - -	return 0; -} - -int pmic_reg_write(struct pmic *p, u32 reg, u32 val) -{ -	if (pmic_reg(p, reg, &val, 1)) -		return -1; - -	return 0; -} - -int pmic_reg_read(struct pmic *p, u32 reg, u32 *val) -{ -	if (pmic_reg(p, reg, val, 0)) -		return -1; - -	return 0; -}  |