[v4,11/18] clk: imx: add hw API imx8m_anatop_get_clk_hw

Commit Message

Dario Binacchi Dec. 1, 2024, 5:46 p.m. UTC

Get the hw of a clock registered by the anatop module. This function is
preparatory for future developments.

Signed-off-by: Dario Binacchi <[e-mail]>

 - Added in v4

---

(no changes since v1)

 drivers/clk/imx/clk.c | 26 ++++++++++++++++++++++++++
 drivers/clk/imx/clk.h |  6 ++++++
 2 files changed, 32 insertions(+)

Patch

diff --git a/drivers/clk/imx/clk.c b/drivers/clk/imx/clk.c
index df83bd939492..8a8473a77b7c 100644
--- a/drivers/clk/imx/clk.c
+++ b/drivers/clk/imx/clk.c
@@ -128,6 +128,32 @@  struct clk_hw *imx_get_clk_hw_by_name(struct device_node *np, const char *name)
 }
 EXPORT_SYMBOL_GPL(imx_get_clk_hw_by_name);
 
+#if defined(CONFIG_CLK_IMX8MM) || defined(CONFIG_CLK_IMX8MN) || \
+	defined(CONFIG_CLK_IMX8MP) || defined(CONFIG_CLK_IMX8MQ)
+struct clk_hw *imx8m_anatop_get_clk_hw(int id)
+{
+#if defined(CONFIG_CLK_IMX8MQ)
+	const char *compatible = "fsl,imx8mq-anatop";
+#else
+	const char *compatible = "fsl,imx8mm-anatop";
+#endif
+	struct device_node *np;
+	struct of_phandle_args args;
+	struct clk_hw *hw;
+
+	np = of_find_compatible_node(NULL, NULL, compatible);
+	args.np = np;
+	args.args_count = 1;
+	args.args[0] = id;
+	of_node_put(np);
+
+	hw = __clk_get_hw(of_clk_get_from_provider(&args));
+	pr_debug("%s: got clk: %s\n", __func__, clk_hw_get_name(hw));
+	return hw;
+}
+EXPORT_SYMBOL_GPL(imx8m_anatop_get_clk_hw);
+#endif
+
 /*
  * This fixups the register CCM_CSCMR1 write value.
  * The write/read/divider values of the aclk_podf field
diff --git a/drivers/clk/imx/clk.h b/drivers/clk/imx/clk.h
index aa5202f284f3..6b6af26f4f1e 100644
--- a/drivers/clk/imx/clk.h
+++ b/drivers/clk/imx/clk.h
@@ -487,4 +487,10 @@  struct clk_hw *imx_clk_gpr_mux(const char *name, const char *compatible,
 			       u32 reg, const char **parent_names,
 			       u8 num_parents, const u32 *mux_table, u32 mask);
 
+
+#if defined(CONFIG_CLK_IMX8MM) || defined(CONFIG_CLK_IMX8MN) || \
+	defined(CONFIG_CLK_IMX8MP) || defined(CONFIG_CLK_IMX8MQ)
+struct clk_hw *imx8m_anatop_get_clk_hw(int id);
+#endif
+
 #endif