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Subject[PATCH 4/6] clk: mediatek: reset: Implement mtk_unregister_reset_controller() API
Date
From: Yassine Oudjana <y.oudjana@protonmail.com>

Add a function to unregister a reset controller previously
registered with mtk_register_reset_controller() or
mtk_register_reset_controller_with_dev(), and do the
necessary cleanup.

Signed-off-by: Yassine Oudjana <y.oudjana@protonmail.com>
---
Dependencies:
- clk: mediatek: Move to struct clk_hw provider APIs (series)
https://patchwork.kernel.org/project/linux-mediatek/cover/20220510104804.544597-1-wenst@chromium.org/
- Cleanup MediaTek clk reset drivers and support MT8192/MT8195 (series)
https://patchwork.kernel.org/project/linux-mediatek/cover/20220503093856.22250-1-rex-bc.chen@mediatek.com/
- Export required symbols to compile clk drivers as module (single patch)
https://patchwork.kernel.org/project/linux-mediatek/patch/20220518111652.223727-7-angelogioacchino.delregno@collabora.com/

drivers/clk/mediatek/reset.c | 7 +++++++
drivers/clk/mediatek/reset.h | 6 ++++++
2 files changed, 13 insertions(+)

diff --git a/drivers/clk/mediatek/reset.c b/drivers/clk/mediatek/reset.c
index 09862baf1d57..c1ab8c87ec27 100644
--- a/drivers/clk/mediatek/reset.c
+++ b/drivers/clk/mediatek/reset.c
@@ -232,4 +232,11 @@ struct mtk_clk_rst_data
}
EXPORT_SYMBOL_GPL(mtk_register_reset_controller_with_dev);

+void mtk_unregister_reset_controller(struct mtk_clk_rst_data *data)
+{
+ reset_controller_unregister(&data->rcdev);
+ kfree(data);
+}
+EXPORT_SYMBOL_GPL(mtk_unregister_reset_controller);
+
MODULE_LICENSE("GPL");
diff --git a/drivers/clk/mediatek/reset.h b/drivers/clk/mediatek/reset.h
index 7418dd0d046f..0feaea4115a8 100644
--- a/drivers/clk/mediatek/reset.h
+++ b/drivers/clk/mediatek/reset.h
@@ -81,4 +81,10 @@ struct mtk_clk_rst_data
*mtk_register_reset_controller_with_dev(struct device *dev,
const struct mtk_clk_rst_desc *desc);

+/**
+ * mtk_unregister_reset_controller - Unregister mediatek clock reset controller
+ * @data: Pointer to previously registered struct mtk_clk_rst_data.
+ */
+void mtk_unregister_reset_controller(struct mtk_clk_rst_data *data);
+
#endif /* __DRV_CLK_MTK_RESET_H */
--
2.36.1
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