[PATCH v2 3/4] clk: meson: axg-aoclk: migrate to the new parent description method

Alexandre Mergnat amergnat at baylibre.com
Thu Jul 25 09:41:25 PDT 2019


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 at 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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