[PATCH v2 2/4] clk: meson: gxbb-aoclk: migrate to the new parent description method

Alexandre Mergnat amergnat at baylibre.com
Thu Jul 25 09:41:24 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/gxbb-aoclk.c | 55 +++++++++++++++++-----------------
 1 file changed, 27 insertions(+), 28 deletions(-)

diff --git a/drivers/clk/meson/gxbb-aoclk.c b/drivers/clk/meson/gxbb-aoclk.c
index 449f6ac189d8..e940861a396b 100644
--- a/drivers/clk/meson/gxbb-aoclk.c
+++ b/drivers/clk/meson/gxbb-aoclk.c
@@ -11,8 +11,6 @@
 #include "clk-regmap.h"
 #include "clk-dualdiv.h"
 
-#define IN_PREFIX "ao-in-"
-
 /* AO Configuration Clock registers offsets */
 #define AO_RTI_PWR_CNTL_REG1	0x0c
 #define AO_RTI_PWR_CNTL_REG0	0x10
@@ -31,7 +29,9 @@ static struct clk_regmap _name##_ao = {					\
 	.hw.init = &(struct clk_init_data) {				\
 		.name = #_name "_ao",					\
 		.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,				\
 	},								\
@@ -52,7 +52,9 @@ static struct clk_regmap ao_cts_oscin = {
 	.hw.init = &(struct clk_init_data){
 		.name = "ao_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,
 	},
 };
@@ -65,7 +67,7 @@ static struct clk_regmap ao_32k_pre = {
 	.hw.init = &(struct clk_init_data){
 		.name = "ao_32k_pre",
 		.ops = &clk_regmap_gate_ops,
-		.parent_names = (const char *[]){ "ao_cts_oscin" },
+		.parent_hws = (const struct clk_hw *[]) { &ao_cts_oscin.hw },
 		.num_parents = 1,
 	},
 };
@@ -112,7 +114,7 @@ static struct clk_regmap ao_32k_div = {
 	.hw.init = &(struct clk_init_data){
 		.name = "ao_32k_div",
 		.ops = &meson_clk_dualdiv_ops,
-		.parent_names = (const char *[]){ "ao_32k_pre" },
+		.parent_hws = (const struct clk_hw *[]) { &ao_32k_pre.hw },
 		.num_parents = 1,
 	},
 };
@@ -127,8 +129,10 @@ static struct clk_regmap ao_32k_sel = {
 	.hw.init = &(struct clk_init_data){
 		.name = "ao_32k_sel",
 		.ops = &clk_regmap_mux_ops,
-		.parent_names = (const char *[]){ "ao_32k_div",
-						  "ao_32k_pre" },
+		.parent_hws = (const struct clk_hw *[]) {
+			&ao_32k_div.hw,
+			&ao_32k_pre.hw
+		},
 		.num_parents = 2,
 		.flags = CLK_SET_RATE_PARENT,
 	},
@@ -142,7 +146,7 @@ static struct clk_regmap ao_32k = {
 	.hw.init = &(struct clk_init_data){
 		.name = "ao_32k",
 		.ops = &clk_regmap_gate_ops,
-		.parent_names = (const char *[]){ "ao_32k_sel" },
+		.parent_hws = (const struct clk_hw *[]) { &ao_32k_sel.hw },
 		.num_parents = 1,
 		.flags = CLK_SET_RATE_PARENT,
 	},
@@ -159,10 +163,12 @@ static struct clk_regmap ao_cts_rtc_oscin = {
 	.hw.init = &(struct clk_init_data){
 		.name = "ao_cts_rtc_oscin",
 		.ops = &clk_regmap_mux_ops,
-		.parent_names = (const char *[]){ IN_PREFIX "ext-32k-0",
-						  IN_PREFIX "ext-32k-1",
-						  IN_PREFIX "ext-32k-2",
-						  "ao_32k" },
+		.parent_data = (const struct clk_parent_data []) {
+			{ .fw_name = "ext-32k-0", },
+			{ .fw_name = "ext-32k-1", },
+			{ .fw_name = "ext-32k-2", },
+			{ .hw = &ao_32k.hw },
+		},
 		.num_parents = 4,
 		.flags = CLK_SET_RATE_PARENT,
 	},
@@ -178,8 +184,10 @@ static struct clk_regmap ao_clk81 = {
 	.hw.init = &(struct clk_init_data){
 		.name = "ao_clk81",
 		.ops = &clk_regmap_mux_ro_ops,
-		.parent_names = (const char *[]){ IN_PREFIX "mpeg-clk",
-						  "ao_cts_rtc_oscin" },
+		.parent_data = (const struct clk_parent_data []) {
+			{ .fw_name = "mpeg-clk", },
+			{ .hw = &ao_cts_rtc_oscin.hw },
+		},
 		.num_parents = 2,
 		.flags = CLK_SET_RATE_PARENT,
 	},
@@ -208,8 +216,10 @@ static struct clk_regmap ao_cts_cec = {
 		 * Until CCF gets fixed, adding this fake parent that won't
 		 * ever be registered should work around the problem
 		 */
-		.parent_names = (const char *[]){ "fixme",
-						  "ao_cts_rtc_oscin" },
+		.parent_data = (const struct clk_parent_data []) {
+			{ .name = "fixme", .index = -1, },
+			{ .hw = &ao_cts_rtc_oscin.hw },
+		},
 		.num_parents = 2,
 		.flags = CLK_SET_RATE_PARENT,
 	},
@@ -261,14 +271,6 @@ static const struct clk_hw_onecell_data gxbb_aoclk_onecell_data = {
 	.num = NR_CLKS,
 };
 
-static const struct meson_aoclk_input gxbb_aoclk_inputs[] = {
-	{ .name = "xtal",	.required = true,  },
-	{ .name = "mpeg-clk",	.required = true,  },
-	{. name = "ext-32k-0",	.required = false, },
-	{. name = "ext-32k-1",	.required = false, },
-	{. name = "ext-32k-2",	.required = false, },
-};
-
 static const struct meson_aoclk_data gxbb_aoclkc_data = {
 	.reset_reg	= AO_RTI_GEN_CNTL_REG0,
 	.num_reset	= ARRAY_SIZE(gxbb_aoclk_reset),
@@ -276,9 +278,6 @@ static const struct meson_aoclk_data gxbb_aoclkc_data = {
 	.num_clks	= ARRAY_SIZE(gxbb_aoclk),
 	.clks		= gxbb_aoclk,
 	.hw_data	= &gxbb_aoclk_onecell_data,
-	.inputs		= gxbb_aoclk_inputs,
-	.num_inputs	= ARRAY_SIZE(gxbb_aoclk_inputs),
-	.input_prefix	= IN_PREFIX,
 };
 
 static const struct of_device_id gxbb_aoclkc_match_table[] = {
-- 
2.17.1




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