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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-08 17:45:29 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-08 17:45:29 +0000
commit83506c85f8d4332b3edfdc8f1fd07aa691415350 (patch)
tree316b9630e093bb3b80e5d6e1c304151b5597901e /drivers/clk/qcom/reset.c
parentAdding upstream version 5.10.209. (diff)
downloadlinux-upstream/5.10.216.tar.xz
linux-upstream/5.10.216.zip
Adding upstream version 5.10.216.upstream/5.10.216
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/clk/qcom/reset.c')
-rw-r--r--drivers/clk/qcom/reset.c27
1 files changed, 14 insertions, 13 deletions
diff --git a/drivers/clk/qcom/reset.c b/drivers/clk/qcom/reset.c
index e45e32804..d96c96a90 100644
--- a/drivers/clk/qcom/reset.c
+++ b/drivers/clk/qcom/reset.c
@@ -22,8 +22,8 @@ static int qcom_reset(struct reset_controller_dev *rcdev, unsigned long id)
return 0;
}
-static int
-qcom_reset_assert(struct reset_controller_dev *rcdev, unsigned long id)
+static int qcom_reset_set_assert(struct reset_controller_dev *rcdev,
+ unsigned long id, bool assert)
{
struct qcom_reset_controller *rst;
const struct qcom_reset_map *map;
@@ -33,21 +33,22 @@ qcom_reset_assert(struct reset_controller_dev *rcdev, unsigned long id)
map = &rst->reset_map[id];
mask = map->bitmask ? map->bitmask : BIT(map->bit);
- return regmap_update_bits(rst->regmap, map->reg, mask, mask);
+ regmap_update_bits(rst->regmap, map->reg, mask, assert ? mask : 0);
+
+ /* Read back the register to ensure write completion, ignore the value */
+ regmap_read(rst->regmap, map->reg, &mask);
+
+ return 0;
}
-static int
-qcom_reset_deassert(struct reset_controller_dev *rcdev, unsigned long id)
+static int qcom_reset_assert(struct reset_controller_dev *rcdev, unsigned long id)
{
- struct qcom_reset_controller *rst;
- const struct qcom_reset_map *map;
- u32 mask;
-
- rst = to_qcom_reset_controller(rcdev);
- map = &rst->reset_map[id];
- mask = map->bitmask ? map->bitmask : BIT(map->bit);
+ return qcom_reset_set_assert(rcdev, id, true);
+}
- return regmap_update_bits(rst->regmap, map->reg, mask, 0);
+static int qcom_reset_deassert(struct reset_controller_dev *rcdev, unsigned long id)
+{
+ return qcom_reset_set_assert(rcdev, id, false);
}
const struct reset_control_ops qcom_reset_ops = {