diff mbox

[2/4] ARM: shmobile: r8a7790: add audio clock

Message ID 878uujguzj.wl%kuninori.morimoto.gx@gmail.com (mailing list archive)
State Accepted
Commit 03850dd7aaa922424529e9c1374f2724bc7c33be
Headers show

Commit Message

Kuninori Morimoto Jan. 14, 2014, 2:25 a.m. UTC 
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

Current audio clock doesn't have dependency to device/driver,
but, it is not good design for DT support.
To avoid branch merge conflict issue,
it uses this load map, and this patch is 1) part.
 1) add old/new style clock in platform
 2) add new style clock method in driver
 3) remove old tyle clock from platform

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
---
 arch/arm/boot/dts/r8a7790.dtsi         |   23 +++++++++++++++++++++++
 arch/arm/mach-shmobile/clock-r8a7790.c |   20 ++++++++++++++++++++
 2 files changed, 43 insertions(+)
diff mbox

Patch

diff --git a/arch/arm/boot/dts/r8a7790.dtsi b/arch/arm/boot/dts/r8a7790.dtsi
index 3cc834b..b4f0cd5 100644
--- a/arch/arm/boot/dts/r8a7790.dtsi
+++ b/arch/arm/boot/dts/r8a7790.dtsi
@@ -414,6 +414,29 @@ 
 			clock-output-names = "extal";
 		};
 
+		/*
+		 * The external audio clocks are configured as 0 Hz fixed frequency clocks by
+		 * default. Boards that provide audio clocks should override them.
+		 */
+		audio_clk_a: audio_clk_a {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <0>;
+			clock-output-names = "audio_clk_a";
+		};
+		audio_clk_b: audio_clk_b {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <0>;
+			clock-output-names = "audio_clk_b";
+		};
+		audio_clk_c: audio_clk_c {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <0>;
+			clock-output-names = "audio_clk_c";
+		};
+
 		/* Special CPG clocks */
 		cpg_clocks: cpg_clocks@e6150000 {
 			compatible = "renesas,r8a7790-cpg-clocks",
diff --git a/arch/arm/mach-shmobile/clock-r8a7790.c b/arch/arm/mach-shmobile/clock-r8a7790.c
index f25b43a..77fd456 100644
--- a/arch/arm/mach-shmobile/clock-r8a7790.c
+++ b/arch/arm/mach-shmobile/clock-r8a7790.c
@@ -91,6 +91,15 @@  static struct clk main_clk = {
 	.ops	= &followparent_clk_ops,
 };
 
+static struct clk audio_clk_a = {
+};
+
+static struct clk audio_clk_b = {
+};
+
+static struct clk audio_clk_c = {
+};
+
 /*
  * clock ratio of these clock will be updated
  * on r8a7790_clock_init()
@@ -124,6 +133,9 @@  SH_FIXED_RATIO_CLK_SET(ddr_clk,			pll3_clk,	1, 8);
 SH_FIXED_RATIO_CLK_SET(mp_clk,			pll1_div2_clk,	1, 15);
 
 static struct clk *main_clks[] = {
+	&audio_clk_a,
+	&audio_clk_b,
+	&audio_clk_c,
 	&extal_clk,
 	&extal_div2_clk,
 	&main_clk,
@@ -266,6 +278,10 @@  static struct clk mstp_clks[MSTP_NR] = {
 static struct clk_lookup lookups[] = {
 
 	/* main clocks */
+	CLKDEV_CON_ID("audio_clk_a",	&audio_clk_a),
+	CLKDEV_CON_ID("audio_clk_b",	&audio_clk_b),
+	CLKDEV_CON_ID("audio_clk_c",	&audio_clk_c),
+	CLKDEV_CON_ID("audio_clk_internal",	&m2_clk),
 	CLKDEV_CON_ID("extal",		&extal_clk),
 	CLKDEV_CON_ID("extal_div2",	&extal_div2_clk),
 	CLKDEV_CON_ID("main",		&main_clk),
@@ -353,6 +369,10 @@  static struct clk_lookup lookups[] = {
 	CLKDEV_ICK_ID("du.0", "rcar-du-r8a7790", &mstp_clks[MSTP724]),
 	CLKDEV_ICK_ID("du.1", "rcar-du-r8a7790", &mstp_clks[MSTP723]),
 	CLKDEV_ICK_ID("du.2", "rcar-du-r8a7790", &mstp_clks[MSTP722]),
+	CLKDEV_ICK_ID("clk_a", "rcar_sound", &audio_clk_a),
+	CLKDEV_ICK_ID("clk_b", "rcar_sound", &audio_clk_b),
+	CLKDEV_ICK_ID("clk_c", "rcar_sound", &audio_clk_c),
+	CLKDEV_ICK_ID("clk_i", "rcar_sound", &m2_clk),
 	CLKDEV_ICK_ID("ssi.0", "rcar_sound", &mstp_clks[MSTP1015]),
 	CLKDEV_ICK_ID("ssi.1", "rcar_sound", &mstp_clks[MSTP1014]),
 	CLKDEV_ICK_ID("ssi.2", "rcar_sound", &mstp_clks[MSTP1013]),