diff options
| author | Peng Fan <peng.fan@nxp.com> | 2020-05-07 13:56:17 +0800 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2020-05-21 22:37:48 +0800 |
| commit | 0e40198dc28b620ead39de6e42db291418cd1183 (patch) | |
| tree | 414d38fbd1b63aa35e91353af7f9ab75740e130c /drivers/clk | |
| parent | f90b68d6c8b008549a4538f608575ff3f9ed2905 (diff) | |
| download | linux-0e40198dc28b620ead39de6e42db291418cd1183.tar.bz2 | |
clk: imx: add imx8m_clk_hw_composite_bus
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>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'drivers/clk')
| -rw-r--r-- | drivers/clk/imx/clk-composite-8m.c | 5 | ||||
| -rw-r--r-- | drivers/clk/imx/clk.h | 7 |
2 files changed, 12 insertions, 0 deletions
diff --git a/drivers/clk/imx/clk-composite-8m.c b/drivers/clk/imx/clk-composite-8m.c index 2d9562ebddc3..d2b5af826f2c 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, \ |