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pinctrl: bcm2835: Use define directive for BCM2835_PINCONF_PARAM_PULL

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Clang warns when one enumerated type is implicitly converted to another:

drivers/pinctrl/bcm/pinctrl-bcm2835.c:707:40: warning: implicit
conversion from enumeration type 'enum bcm2835_pinconf_param' to
different enumeration type 'enum pin_config_param' [-Wenum-conversion]
        configs[0] = pinconf_to_config_packed(BCM2835_PINCONF_PARAM_PULL, pull);
                     ~~~~~~~~~~~~~~~~~~~~~~~~ ^~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.

It is expected that pinctrl drivers can extend pin_config_param because
of the gap between PIN_CONFIG_END and PIN_CONFIG_MAX so this conversion
isn't an issue. Most drivers that take advantage of this define the
PIN_CONFIG variables as constants, rather than enumerated values. Do the
same thing here so that Clang no longer warns.

Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Acked-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Nathan Chancellor 2018-10-31 17:46:54 -07:00 committed by Linus Walleij
parent 957063c924
commit b40ac08ff8
1 changed files with 2 additions and 4 deletions
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6
drivers/pinctrl/bcm/pinctrl-bcm2835.c
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@ -72,10 +72,8 @@
#define GPIO_REG_OFFSET(p) ((p) / 32)
#define GPIO_REG_SHIFT(p) ((p) % 32)
enum bcm2835_pinconf_param {
/* argument: bcm2835_pinconf_pull */
BCM2835_PINCONF_PARAM_PULL = (PIN_CONFIG_END + 1),
};
/* argument: bcm2835_pinconf_pull */
#define BCM2835_PINCONF_PARAM_PULL (PIN_CONFIG_END + 1)
struct bcm2835_pinctrl {
struct device *dev;