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Subject[PATCH 3/4] clk: meson: axg-aoclk: migrate to the new parent description method
Date
This clock controller use the string comparison method to describe parent
relation between the clocks, which is not optimized.

Migrate to the new way by using .parent_hws where possible (when parent
clocks are localy declared in the controller) and use .parent_data
otherwise.

Remove clk input helper and all bypass clocks (declared in probe function)
which are no longer used since we are able to use device-tree clock name
directly.

Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com>
---
drivers/clk/meson/axg-aoclk.c | 63 ++++++++++++++++++++---------------
1 file changed, 37 insertions(+), 26 deletions(-)

diff --git a/drivers/clk/meson/axg-aoclk.c b/drivers/clk/meson/axg-aoclk.c
index 0086f31288eb..b488b40c9d0e 100644
--- a/drivers/clk/meson/axg-aoclk.c
+++ b/drivers/clk/meson/axg-aoclk.c
@@ -18,8 +18,6 @@
#include "clk-regmap.h"
#include "clk-dualdiv.h"

-#define IN_PREFIX "ao-in-"
-
/*
* AO Configuration Clock registers offsets
* Register offsets from the data sheet must be multiplied by 4.
@@ -42,7 +40,9 @@ static struct clk_regmap axg_aoclk_##_name = { \
.hw.init = &(struct clk_init_data) { \
.name = "axg_ao_" #_name, \
.ops = &clk_regmap_gate_ops, \
- .parent_names = (const char *[]){ IN_PREFIX "mpeg-clk" }, \
+ .parent_data = &(const struct clk_parent_data) { \
+ .fw_name = "mpeg-clk", \
+ }, \
.num_parents = 1, \
.flags = CLK_IGNORE_UNUSED, \
}, \
@@ -64,7 +64,9 @@ static struct clk_regmap axg_aoclk_cts_oscin = {
.hw.init = &(struct clk_init_data){
.name = "cts_oscin",
.ops = &clk_regmap_gate_ro_ops,
- .parent_names = (const char *[]){ IN_PREFIX "xtal" },
+ .parent_data = &(const struct clk_parent_data) {
+ .fw_name = "xtal",
+ },
.num_parents = 1,
},
};
@@ -77,7 +79,9 @@ static struct clk_regmap axg_aoclk_32k_pre = {
.hw.init = &(struct clk_init_data){
.name = "axg_ao_32k_pre",
.ops = &clk_regmap_gate_ops,
- .parent_names = (const char *[]){ "cts_oscin" },
+ .parent_hws = (const struct clk_hw *[]) {
+ &axg_aoclk_cts_oscin.hw
+ },
.num_parents = 1,
},
};
@@ -124,7 +128,9 @@ static struct clk_regmap axg_aoclk_32k_div = {
.hw.init = &(struct clk_init_data){
.name = "axg_ao_32k_div",
.ops = &meson_clk_dualdiv_ops,
- .parent_names = (const char *[]){ "axg_ao_32k_pre" },
+ .parent_hws = (const struct clk_hw *[]) {
+ &axg_aoclk_32k_pre.hw
+ },
.num_parents = 1,
},
};
@@ -139,8 +145,10 @@ static struct clk_regmap axg_aoclk_32k_sel = {
.hw.init = &(struct clk_init_data){
.name = "axg_ao_32k_sel",
.ops = &clk_regmap_mux_ops,
- .parent_names = (const char *[]){ "axg_ao_32k_div",
- "axg_ao_32k_pre" },
+ .parent_hws = (const struct clk_hw *[]) {
+ &axg_aoclk_32k_div.hw,
+ &axg_aoclk_32k_pre.hw,
+ },
.num_parents = 2,
.flags = CLK_SET_RATE_PARENT,
},
@@ -154,7 +162,9 @@ static struct clk_regmap axg_aoclk_32k = {
.hw.init = &(struct clk_init_data){
.name = "axg_ao_32k",
.ops = &clk_regmap_gate_ops,
- .parent_names = (const char *[]){ "axg_ao_32k_sel" },
+ .parent_hws = (const struct clk_hw *[]) {
+ &axg_aoclk_32k_sel.hw
+ },
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
},
@@ -170,8 +180,10 @@ static struct clk_regmap axg_aoclk_cts_rtc_oscin = {
.hw.init = &(struct clk_init_data){
.name = "axg_ao_cts_rtc_oscin",
.ops = &clk_regmap_mux_ops,
- .parent_names = (const char *[]){ "axg_ao_32k",
- IN_PREFIX "ext_32k-0" },
+ .parent_data = (const struct clk_parent_data []) {
+ { .hw = &axg_aoclk_32k.hw },
+ { .fw_name = "ext_32k-0", },
+ },
.num_parents = 2,
.flags = CLK_SET_RATE_PARENT,
},
@@ -187,8 +199,10 @@ static struct clk_regmap axg_aoclk_clk81 = {
.hw.init = &(struct clk_init_data){
.name = "axg_ao_clk81",
.ops = &clk_regmap_mux_ro_ops,
- .parent_names = (const char *[]){ IN_PREFIX "mpeg-clk",
- "axg_ao_cts_rtc_oscin"},
+ .parent_data = (const struct clk_parent_data []) {
+ { .fw_name = "mpeg-clk", },
+ { .hw = &axg_aoclk_cts_rtc_oscin.hw },
+ },
.num_parents = 2,
.flags = CLK_SET_RATE_PARENT,
},
@@ -203,8 +217,10 @@ static struct clk_regmap axg_aoclk_saradc_mux = {
.hw.init = &(struct clk_init_data){
.name = "axg_ao_saradc_mux",
.ops = &clk_regmap_mux_ops,
- .parent_names = (const char *[]){ IN_PREFIX "xtal",
- "axg_ao_clk81" },
+ .parent_data = (const struct clk_parent_data []) {
+ { .fw_name = "xtal", },
+ { .hw = &axg_aoclk_clk81.hw },
+ },
.num_parents = 2,
},
};
@@ -218,7 +234,9 @@ static struct clk_regmap axg_aoclk_saradc_div = {
.hw.init = &(struct clk_init_data){
.name = "axg_ao_saradc_div",
.ops = &clk_regmap_divider_ops,
- .parent_names = (const char *[]){ "axg_ao_saradc_mux" },
+ .parent_hws = (const struct clk_hw *[]) {
+ &axg_aoclk_saradc_mux.hw
+ },
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
},
@@ -232,7 +250,9 @@ static struct clk_regmap axg_aoclk_saradc_gate = {
.hw.init = &(struct clk_init_data){
.name = "axg_ao_saradc_gate",
.ops = &clk_regmap_gate_ops,
- .parent_names = (const char *[]){ "axg_ao_saradc_div" },
+ .parent_hws = (const struct clk_hw *[]) {
+ &axg_aoclk_saradc_div.hw
+ },
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
},
@@ -290,12 +310,6 @@ static const struct clk_hw_onecell_data axg_aoclk_onecell_data = {
.num = NR_CLKS,
};

-static const struct meson_aoclk_input axg_aoclk_inputs[] = {
- { .name = "xtal", .required = true },
- { .name = "mpeg-clk", .required = true },
- { .name = "ext-32k-0", .required = false },
-};
-
static const struct meson_aoclk_data axg_aoclkc_data = {
.reset_reg = AO_RTI_GEN_CNTL_REG0,
.num_reset = ARRAY_SIZE(axg_aoclk_reset),
@@ -303,9 +317,6 @@ static const struct meson_aoclk_data axg_aoclkc_data = {
.num_clks = ARRAY_SIZE(axg_aoclk_regmap),
.clks = axg_aoclk_regmap,
.hw_data = &axg_aoclk_onecell_data,
- .inputs = axg_aoclk_inputs,
- .num_inputs = ARRAY_SIZE(axg_aoclk_inputs),
- .input_prefix = IN_PREFIX,
};

static const struct of_device_id axg_aoclkc_match_table[] = {
--
2.17.1
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