regulator: core: Add back the const qualifier for ops of struct regulator_desc

Fix below build warning:
CC [M]  drivers/regulator/hi6421-regulator.o
drivers/regulator/hi6421-regulator.c:356:2: warning: initialization discards 'const' qualifier from pointer target type [enabled by default]

This is a revert of commit 716845ebeb50 ("regulator: core: Fix build error due
to const qualifier for ops"). The build error was fixed by commit 39f5460d7f9c
("regulator: core: add const to regulator_ops and fix build error in mc13892").

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index 3abda7554d82..efe058f8f746 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -246,7 +246,7 @@ struct regulator_desc {
         int id;
         bool continuous_voltage_range;
         unsigned n_voltages;
-        struct regulator_ops *ops;
+        const struct regulator_ops *ops;
         int irq;
         enum regulator_type type;
         struct module *owner;