/*
* This header provides constants for hisilicon pinctrl bindings.
*
* Copyright (c) 2015 Hisilicon Limited.
* Copyright (c) 2015 Linaro Limited.
*
* 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 program is distributed "as is" WITHOUT ANY WARRANTY of any
* kind, whether express or implied; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef _DT_BINDINGS_PINCTRL_HISI_H
#define _DT_BINDINGS_PINCTRL_HISI_H
/* iomg bit definition */
#define MUX_M0 0
#define MUX_M1 1
#define MUX_M2 2
#define MUX_M3 3
#define MUX_M4 4
#define MUX_M5 5
#define MUX_M6 6
#define MUX_M7 7
/* iocg bit definition */
#define PULL_MASK (3)
#define PULL_DIS (0)
#define PULL_UP (1 << 0)
#define PULL_DOWN (1 << 1)
/* drive strength definition */
#define DRIVE_MASK (7 << 4)
#define DRIVE1_02MA (0 << 4)
#define DRIVE1_04MA (1 << 4)
#define DRIVE1_08MA (2 << 4)
#define DRIVE1_10MA (3 << 4)
#define DRIVE2_02MA (0 << 4)
#define DRIVE2_04MA (1 << 4)
#define DRIVE2_08MA (2 << 4)
#define DRIVE2_10MA (3 << 4)
#define DRIVE3_04MA (0 << 4)
#define DRIVE3_08MA (1 << 4)
#define DRIVE3_12MA (2 << 4)
#define DRIVE3_16MA (3 << 4)
#define DRIVE3_20MA (4 << 4)
#define DRIVE3_24MA (5 << 4)
#define DRIVE3_32MA (6 << 4)
#define DRIVE3_40MA (7 << 4)
#define DRIVE4_02MA (0 << 4)
#define DRIVE4_04MA (2 << 4)
#define DRIVE4_08MA (4 << 4)
#define DRIVE4_10MA (6 << 4)
#endif
e-remove'>summaryrefslogtreecommitdiff
regulator: gpio: properly check return value of of_get_named_gpio
The function of_get_named_gpio() could return -ENOENT, -EPROBE_DEFER
-EINVAL and so on. Currently, for the optional property "enable-gpio",
we only check -EPROBE_DEFER, this is not enough since there may be
misconfigured "enable-gpio" in the DTB, of_get_named_gpio() will return
-EINVAL in this case, we should return immediately here. And for the
optional property "gpios", we didn't check the return value, the driver
will continue to the point where gpio_request_array() is called, it
doesn't make sense to continue if we got -EPROBE_DEFER or -EINVAL here.
This patch tries to address these two issues by properly checking the
return value of of_get_named_gpio.
Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: Mark Brown <broonie@kernel.org>