From: Peng Fan <peng.fan@xxxxxxx>
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@xxxxxxx>
---
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 8fa60f22d377..3ba6838ce3d4 100644
--- a/drivers/clk/imx/clk-composite-8m.c
+++ b/drivers/clk/imx/clk-composite-8m.c
@@ -205,6 +205,11 @@ 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 b91b1b18a4a2..16adbc34e05f 100644
--- a/drivers/clk/imx/clk.h
+++ b/drivers/clk/imx/clk.h
@@ -527,6 +527,7 @@ 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,
@@ -535,6 +536,12 @@ 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
