Let's introduce a new module called meson-clkc-utils that
will contain shared utility functions for all Amlogic clock
controller drivers.
The first utility function is a replacement of of_clk_hw_onecell_get
in order to get rid of the NR_CLKS define in all Amlogic clock
drivers.
The goal is to move all duplicate probe and init code in this module.
Signed-off-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
---
drivers/clk/meson/Kconfig | 3 +++
drivers/clk/meson/Makefile | 1 +
drivers/clk/meson/meson-clkc-utils.c | 25 +++++++++++++++++++++++++
drivers/clk/meson/meson-clkc-utils.h | 19 +++++++++++++++++++
4 files changed, 48 insertions(+)
diff --git a/drivers/clk/meson/Kconfig b/drivers/clk/meson/Kconfig
index 8ce846fdbe43..d03adad31318 100644
--- a/drivers/clk/meson/Kconfig
+++ b/drivers/clk/meson/Kconfig
@@ -30,6 +30,9 @@ config COMMON_CLK_MESON_VID_PLL_DIV
tristate
select COMMON_CLK_MESON_REGMAP
+config COMMON_CLK_MESON_CLKC_UTILS
+ tristate
+
config COMMON_CLK_MESON_AO_CLKC
tristate
select COMMON_CLK_MESON_REGMAP
diff --git a/drivers/clk/meson/Makefile b/drivers/clk/meson/Makefile
index d5288662881d..cd961cc4f4db 100644
--- a/drivers/clk/meson/Makefile
+++ b/drivers/clk/meson/Makefile
@@ -1,6 +1,7 @@
# SPDX-License-Identifier: GPL-2.0-only
# Amlogic clock drivers
+obj-$(CONFIG_COMMON_CLK_MESON_CLKC_UTILS) += meson-clkc-utils.o
obj-$(CONFIG_COMMON_CLK_MESON_AO_CLKC) += meson-aoclk.o
obj-$(CONFIG_COMMON_CLK_MESON_CPU_DYNDIV) += clk-cpu-dyndiv.o
obj-$(CONFIG_COMMON_CLK_MESON_DUALDIV) += clk-dualdiv.o
diff --git a/drivers/clk/meson/meson-clkc-utils.c b/drivers/clk/meson/meson-clkc-utils.c
new file mode 100644
index 000000000000..9a0620bcc161
--- /dev/null
+++ b/drivers/clk/meson/meson-clkc-utils.c
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2023 Neil Armstrong <neil.armstrong@xxxxxxxxxx>
+ */
+
+#include <linux/of_device.h>
+#include <linux/clk-provider.h>
+#include <linux/module.h>
+#include "meson-clkc-utils.h"
+
+struct clk_hw *meson_clk_hw_get(struct of_phandle_args *clkspec, void *clk_hw_data)
+{
+ const struct meson_clk_hw_data *data = clk_hw_data;
+ unsigned int idx = clkspec->args[0];
+
+ if (idx >= data->num) {
+ pr_err("%s: invalid index %u\n", __func__, idx);
+ return ERR_PTR(-EINVAL);
+ }
+
+ return data->hws[idx];
+}
+EXPORT_SYMBOL_GPL(meson_clk_hw_get);
+
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/clk/meson/meson-clkc-utils.h b/drivers/clk/meson/meson-clkc-utils.h
new file mode 100644
index 000000000000..fe6f40728949
--- /dev/null
+++ b/drivers/clk/meson/meson-clkc-utils.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
+/*
+ * Copyright (c) 2023 Neil Armstrong <neil.armstrong@xxxxxxxxxx>
+ */
+
+#ifndef __MESON_CLKC_UTILS_H__
+#define __MESON_CLKC_UTILS_H__
+
+#include <linux/of_device.h>
+#include <linux/clk-provider.h>
+
+struct meson_clk_hw_data {
+ struct clk_hw **hws;
+ unsigned int num;
+};
+
+struct clk_hw *meson_clk_hw_get(struct of_phandle_args *clkspec, void *clk_hw_data);
+
+#endif
--
2.34.1
