[PATCH] clk: imx: add CLK_GET_RATE_NOCACHE flag for i.MX8M composite clock
From: Anson Huang <hidden>
Date: 2018-12-18 02:56:08
Also in:
linux-clk, lkml
Subsystem:
common clk framework, nxp i.mx clock drivers, the rest · Maintainers:
Michael Turquette, Stephen Boyd, Abel Vesa, Linus Torvalds
On i.MX8M, some of the bus clocks' rate could be changed in TF-A, so Linux clock framework does NOT know it at all, need to add CLK_GET_RATE_NOCACHE flag for composite clock to make sure the clk rate from Linux clock tree always matches the HW settings. Signed-off-by: Anson Huang <redacted> --- drivers/clk/imx/clk-composite-8m.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/clk/imx/clk-composite-8m.c b/drivers/clk/imx/clk-composite-8m.c
index 527ade1..d9147ec 100644
--- a/drivers/clk/imx/clk-composite-8m.c
+++ b/drivers/clk/imx/clk-composite-8m.c@@ -161,6 +161,8 @@ struct clk *imx8m_clk_composite_flags(const char *name, gate->reg = reg; gate->bit_idx = PCG_CGC_SHIFT; + flags |= CLK_GET_RATE_NOCACHE; + hw = clk_hw_register_composite(NULL, name, parent_names, num_parents, mux_hw, &clk_mux_ops, div_hw, &imx8m_clk_composite_divider_ops,
--
2.7.4
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