Messages in this thread Patch in this message | | | From | peng.fan@nxp ... | Subject | [PATCH V2 08/10] clk: imx: add imx8m_clk_hw_composite_bus | Date | Thu, 12 Mar 2020 18:19:42 +0800 |
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From: Peng Fan <peng.fan@nxp.com>
Introduce imx8m_clk_hw_composite_bus api for bus clk root slice usage. Because the mux switch sequence issue, we could not reuse Peripheral Clock Slice code, need use composite specific mux operation.
Signed-off-by: Peng Fan <peng.fan@nxp.com> --- drivers/clk/imx/clk-composite-8m.c | 5 +++++ drivers/clk/imx/clk.h | 7 +++++++ 2 files changed, 12 insertions(+)
diff --git a/drivers/clk/imx/clk-composite-8m.c b/drivers/clk/imx/clk-composite-8m.c index eae02c151ced..ec28643426c2 100644 --- a/drivers/clk/imx/clk-composite-8m.c +++ b/drivers/clk/imx/clk-composite-8m.c @@ -216,6 +216,11 @@ struct clk_hw *imx8m_clk_hw_composite_flags(const char *name, div->width = PCG_CORE_DIV_WIDTH; divider_ops = &clk_divider_ops; mux_ops = &imx8m_clk_composite_mux_ops; + } else if (composite_flags & IMX_COMPOSITE_BUS) { + div->shift = PCG_PREDIV_SHIFT; + div->width = PCG_PREDIV_WIDTH; + divider_ops = &imx8m_clk_composite_divider_ops; + mux_ops = &imx8m_clk_composite_mux_ops; } else { div->shift = PCG_PREDIV_SHIFT; div->width = PCG_PREDIV_WIDTH; diff --git a/drivers/clk/imx/clk.h b/drivers/clk/imx/clk.h index f074dd8ec42e..d4ea1609bcb7 100644 --- a/drivers/clk/imx/clk.h +++ b/drivers/clk/imx/clk.h @@ -478,6 +478,7 @@ struct clk_hw *imx_clk_hw_cpu(const char *name, const char *parent_name, struct clk *step); #define IMX_COMPOSITE_CORE BIT(0) +#define IMX_COMPOSITE_BUS BIT(1) struct clk_hw *imx8m_clk_hw_composite_flags(const char *name, const char * const *parent_names, @@ -486,6 +487,12 @@ struct clk_hw *imx8m_clk_hw_composite_flags(const char *name, u32 composite_flags, unsigned long flags); +#define imx8m_clk_hw_composite_bus(name, parent_names, reg) \ + imx8m_clk_hw_composite_flags(name, parent_names, \ + ARRAY_SIZE(parent_names), reg, \ + IMX_COMPOSITE_BUS, \ + CLK_SET_RATE_NO_REPARENT | CLK_OPS_PARENT_ENABLE) + #define imx8m_clk_hw_composite_core(name, parent_names, reg) \ imx8m_clk_hw_composite_flags(name, parent_names, \ ARRAY_SIZE(parent_names), reg, \ -- 2.16.4
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