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authorSang-Heon Jeon <ekffu200098@gmail.com>2026-08-24 01:18:14 +0900
committerJulia Lawall <Julia.Lawall@inria.fr>2026-08-23 22:12:11 +0200
commit2bd30b8dc75b823dd7bbef9d7bc68e1fd7ecee5c (patch)
treedcc4da1d99f17541c5590ac63c77da4bf372a4ab /drivers/clk/actions/owl-reset.c
downloadlinux-stable-2bd30b8dc75b823dd7bbef9d7bc68e1fd7ecee5c.tar.gz
linux-stable-2bd30b8dc75b823dd7bbef9d7bc68e1fd7ecee5c.zip
coccinelle: alloc_cast: drop removed allocatorsgrafted
- pci_alloc_consistent() and pci_zalloc_consistent() were removed by commit 7968778914e5 ("PCI: Remove the deprecated "pci-dma-compat.h" API") - kmem_alloc() was removed by commit f078d4ea8276 ("xfs: convert kmem_alloc() to kmalloc()") - kmem_zalloc() was removed by commit 10634530f7ba ("xfs: convert kmem_zalloc() to kzalloc()") - kmem_zone_alloc() and kmem_zone_zalloc() were removed by commit bae633a4a283 ("xfs: remove xfs_zone_{alloc,zalloc} helpers") So drop them from the rules. No functional change. Signed-off-by: Sang-Heon Jeon <ekffu200098@gmail.com> Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Diffstat (limited to 'drivers/clk/actions/owl-reset.c')
-rw-r--r--drivers/clk/actions/owl-reset.c66
1 files changed, 66 insertions, 0 deletions
diff --git a/drivers/clk/actions/owl-reset.c b/drivers/clk/actions/owl-reset.c
new file mode 100644
index 000000000..203f8f34a
--- /dev/null
+++ b/drivers/clk/actions/owl-reset.c
@@ -0,0 +1,66 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+//
+// Actions Semi Owl SoCs Reset Management Unit driver
+//
+// Copyright (c) 2018 Linaro Ltd.
+// Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+
+#include <linux/delay.h>
+#include <linux/regmap.h>
+#include <linux/reset-controller.h>
+
+#include "owl-reset.h"
+
+static int owl_reset_assert(struct reset_controller_dev *rcdev,
+ unsigned long id)
+{
+ struct owl_reset *reset = to_owl_reset(rcdev);
+ const struct owl_reset_map *map = &reset->reset_map[id];
+
+ return regmap_update_bits(reset->regmap, map->reg, map->bit, 0);
+}
+
+static int owl_reset_deassert(struct reset_controller_dev *rcdev,
+ unsigned long id)
+{
+ struct owl_reset *reset = to_owl_reset(rcdev);
+ const struct owl_reset_map *map = &reset->reset_map[id];
+
+ return regmap_update_bits(reset->regmap, map->reg, map->bit, map->bit);
+}
+
+static int owl_reset_reset(struct reset_controller_dev *rcdev,
+ unsigned long id)
+{
+ owl_reset_assert(rcdev, id);
+ udelay(1);
+ owl_reset_deassert(rcdev, id);
+
+ return 0;
+}
+
+static int owl_reset_status(struct reset_controller_dev *rcdev,
+ unsigned long id)
+{
+ struct owl_reset *reset = to_owl_reset(rcdev);
+ const struct owl_reset_map *map = &reset->reset_map[id];
+ u32 reg;
+ int ret;
+
+ ret = regmap_read(reset->regmap, map->reg, &reg);
+ if (ret)
+ return ret;
+
+ /*
+ * The reset control API expects 0 if reset is not asserted,
+ * which is the opposite of what our hardware uses.
+ */
+ return !(map->bit & reg);
+}
+
+const struct reset_control_ops owl_reset_ops = {
+ .assert = owl_reset_assert,
+ .deassert = owl_reset_deassert,
+ .reset = owl_reset_reset,
+ .status = owl_reset_status,
+};