[PATCH 4.9 60/63] pinctrl: max77620: Use define directive for max77620_pinconf_param values

From: Greg Kroah-Hartman
Date: Mon Feb 25 2019 - 16:15:32 EST


4.9-stable review patch. If anyone has any objections, please let me know.

------------------

From: Nathan Chancellor <natechancellor@xxxxxxxxx>

commit 1f60652dd586d1b3eee7c4602892a97a62fa937a upstream.

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

drivers/pinctrl/pinctrl-max77620.c:56:12: warning: implicit conversion
from enumeration type 'enum max77620_pinconf_param' to different
enumeration type 'enum pin_config_param' [-Wenum-conversion]
.param = MAX77620_ACTIVE_FPS_SOURCE,
^~~~~~~~~~~~~~~~~~~~~~~~~~

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.

Link: https://github.com/ClangBuiltLinux/linux/issues/139
Signed-off-by: Nathan Chancellor <natechancellor@xxxxxxxxx>
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/pinctrl/pinctrl-max77620.c | 14 ++++++--------
1 file changed, 6 insertions(+), 8 deletions(-)

--- a/drivers/pinctrl/pinctrl-max77620.c
+++ b/drivers/pinctrl/pinctrl-max77620.c
@@ -34,14 +34,12 @@ enum max77620_pin_ppdrv {
MAX77620_PIN_PP_DRV,
};

-enum max77620_pinconf_param {
- MAX77620_ACTIVE_FPS_SOURCE = PIN_CONFIG_END + 1,
- MAX77620_ACTIVE_FPS_POWER_ON_SLOTS,
- MAX77620_ACTIVE_FPS_POWER_DOWN_SLOTS,
- MAX77620_SUSPEND_FPS_SOURCE,
- MAX77620_SUSPEND_FPS_POWER_ON_SLOTS,
- MAX77620_SUSPEND_FPS_POWER_DOWN_SLOTS,
-};
+#define MAX77620_ACTIVE_FPS_SOURCE (PIN_CONFIG_END + 1)
+#define MAX77620_ACTIVE_FPS_POWER_ON_SLOTS (PIN_CONFIG_END + 2)
+#define MAX77620_ACTIVE_FPS_POWER_DOWN_SLOTS (PIN_CONFIG_END + 3)
+#define MAX77620_SUSPEND_FPS_SOURCE (PIN_CONFIG_END + 4)
+#define MAX77620_SUSPEND_FPS_POWER_ON_SLOTS (PIN_CONFIG_END + 5)
+#define MAX77620_SUSPEND_FPS_POWER_DOWN_SLOTS (PIN_CONFIG_END + 6)

struct max77620_pin_function {
const char *name;