[v9,10/23] clk: imx: add hw API imx_anatop_get_clk_hw
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Message ID 20250118124044.157308-11-dario.binacchi@amarulasolutions.com
State New
Headers show
Series
  • Support spread spectrum clocking for i.MX8M PLLs
Related show

Commit Message

Dario Binacchi Jan. 18, 2025, 12:39 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 <dario.binacchi@amarulasolutions.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>

---

Changes in v9:
- Add 'Reviewed-by' tag of Peng Fan

Changes in v7:
- Add device_node type parameter to imx8m_anatop_get_clk_hw()
- Rename imx8m_anatop_get_clk_hw() to imx_anatop_get_clk_hw()
- Drop the gaurding macros so the code can be used also by i.MX9

Changes in v5:
- Consider CONFIG_CLK_IMX8M{M,N,P,Q}_MODULE to fix compilation errors

Changes in v4:
- New

 drivers/clk/imx/clk.c | 15 +++++++++++++++
 drivers/clk/imx/clk.h |  2 ++
 2 files changed, 17 insertions(+)

Patch
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diff --git a/drivers/clk/imx/clk.c b/drivers/clk/imx/clk.c
index df83bd939492..a906d3cd960b 100644
--- a/drivers/clk/imx/clk.c
+++ b/drivers/clk/imx/clk.c
@@ -128,6 +128,21 @@  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);
 
+struct clk_hw *imx_anatop_get_clk_hw(struct device_node *np, int id)
+{
+	struct of_phandle_args args;
+	struct clk_hw *hw;
+
+	args.np = np;
+	args.args_count = 1;
+	args.args[0] = id;
+
+	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(imx_anatop_get_clk_hw);
+
 /*
  * 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..50e407cf48d9 100644
--- a/drivers/clk/imx/clk.h
+++ b/drivers/clk/imx/clk.h
@@ -487,4 +487,6 @@  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);
 
+struct clk_hw *imx_anatop_get_clk_hw(struct device_node *np, int id);
+
 #endif