The include/dt-bindings/clock/ath79-clk.h header file
is introduced so we can use symbolic identifiers for SoC clocks.
Signed-off-by: Antony Pavlov <antonynpavlov@xxxxxxxxx>
Cc: Gabor Juhos <juhosg@xxxxxxxxxxx>
Cc: Alban Bedel <albeu@xxxxxxx>
Cc: Michael Turquette <mturquette@xxxxxxxxxxxx>
Cc: Stephen Boyd <sboyd@xxxxxxxxxxxxxx>
Cc: Rob Herring <robh+dt@xxxxxxxxxx>
Cc: linux-mips@xxxxxxxxxxxxxx
Cc: linux-clk@xxxxxxxxxxxxxxx
Cc: devicetree@xxxxxxxxxxxxxxx
---
arch/mips/ath79/clock.c | 33 +++++++++++++++++----------------
arch/mips/boot/dts/qca/ar9132.dtsi | 8 +++++---
include/dt-bindings/clock/ath79-clk.h | 19 +++++++++++++++++++
3 files changed, 41 insertions(+), 19 deletions(-)
diff --git a/arch/mips/ath79/clock.c b/arch/mips/ath79/clock.c
index 618dfd7..c3a94ea 100644
--- a/arch/mips/ath79/clock.c
+++ b/arch/mips/ath79/clock.c
@@ -18,6 +18,7 @@
#include <linux/clk.h>
#include <linux/clkdev.h>
#include <linux/clk-provider.h>
+#include <dt-bindings/clock/ath79-clk.h>
#include <asm/div64.h>
@@ -28,7 +29,7 @@
#define AR71XX_BASE_FREQ 40000000
#define AR724X_BASE_FREQ 40000000
-static struct clk *clks[3];
+static struct clk *clks[ATH79_CLK_END];
static struct clk_onecell_data clk_data = {
.clks = clks,
.clk_num = ARRAY_SIZE(clks),
@@ -78,9 +79,9 @@ static void __init ar71xx_clocks_init(void)
ahb_rate = cpu_rate / div;
ath79_add_sys_clkdev("ref", ref_rate);
- clks[0] = ath79_add_sys_clkdev("cpu", cpu_rate);
- clks[1] = ath79_add_sys_clkdev("ddr", ddr_rate);
- clks[2] = ath79_add_sys_clkdev("ahb", ahb_rate);
+ clks[ATH79_CLK_CPU] = ath79_add_sys_clkdev("cpu", cpu_rate);
+ clks[ATH79_CLK_DDR] = ath79_add_sys_clkdev("ddr", ddr_rate);
+ clks[ATH79_CLK_AHB] = ath79_add_sys_clkdev("ahb", ahb_rate);
clk_add_alias("wdt", NULL, "ahb", NULL);
clk_add_alias("uart", NULL, "ahb", NULL);
@@ -114,9 +115,9 @@ static void __init ar724x_clocks_init(void)
ahb_rate = cpu_rate / div;
ath79_add_sys_clkdev("ref", ref_rate);
- clks[0] = ath79_add_sys_clkdev("cpu", cpu_rate);
- clks[1] = ath79_add_sys_clkdev("ddr", ddr_rate);
- clks[2] = ath79_add_sys_clkdev("ahb", ahb_rate);
+ clks[ATH79_CLK_CPU] = ath79_add_sys_clkdev("cpu", cpu_rate);
+ clks[ATH79_CLK_DDR] = ath79_add_sys_clkdev("ddr", ddr_rate);
+ clks[ATH79_CLK_AHB] = ath79_add_sys_clkdev("ahb", ahb_rate);
clk_add_alias("wdt", NULL, "ahb", NULL);
clk_add_alias("uart", NULL, "ahb", NULL);
@@ -176,9 +177,9 @@ static void __init ar933x_clocks_init(void)
}
ath79_add_sys_clkdev("ref", ref_rate);
- clks[0] = ath79_add_sys_clkdev("cpu", cpu_rate);
- clks[1] = ath79_add_sys_clkdev("ddr", ddr_rate);
- clks[2] = ath79_add_sys_clkdev("ahb", ahb_rate);
+ clks[ATH79_CLK_CPU] = ath79_add_sys_clkdev("cpu", cpu_rate);
+ clks[ATH79_CLK_DDR] = ath79_add_sys_clkdev("ddr", ddr_rate);
+ clks[ATH79_CLK_AHB] = ath79_add_sys_clkdev("ahb", ahb_rate);
clk_add_alias("wdt", NULL, "ahb", NULL);
clk_add_alias("uart", NULL, "ref", NULL);
@@ -310,9 +311,9 @@ static void __init ar934x_clocks_init(void)
ahb_rate = cpu_pll / (postdiv + 1);
ath79_add_sys_clkdev("ref", ref_rate);
- clks[0] = ath79_add_sys_clkdev("cpu", cpu_rate);
- clks[1] = ath79_add_sys_clkdev("ddr", ddr_rate);
- clks[2] = ath79_add_sys_clkdev("ahb", ahb_rate);
+ clks[ATH79_CLK_CPU] = ath79_add_sys_clkdev("cpu", cpu_rate);
+ clks[ATH79_CLK_DDR] = ath79_add_sys_clkdev("ddr", ddr_rate);
+ clks[ATH79_CLK_AHB] = ath79_add_sys_clkdev("ahb", ahb_rate);
clk_add_alias("wdt", NULL, "ref", NULL);
clk_add_alias("uart", NULL, "ref", NULL);
@@ -397,9 +398,9 @@ static void __init qca955x_clocks_init(void)
ahb_rate = cpu_pll / (postdiv + 1);
ath79_add_sys_clkdev("ref", ref_rate);
- clks[0] = ath79_add_sys_clkdev("cpu", cpu_rate);
- clks[1] = ath79_add_sys_clkdev("ddr", ddr_rate);
- clks[2] = ath79_add_sys_clkdev("ahb", ahb_rate);
+ clks[ATH79_CLK_CPU] = ath79_add_sys_clkdev("cpu", cpu_rate);
+ clks[ATH79_CLK_DDR] = ath79_add_sys_clkdev("ddr", ddr_rate);
+ clks[ATH79_CLK_AHB] = ath79_add_sys_clkdev("ahb", ahb_rate);
clk_add_alias("wdt", NULL, "ref", NULL);
clk_add_alias("uart", NULL, "ref", NULL);
diff --git a/arch/mips/boot/dts/qca/ar9132.dtsi b/arch/mips/boot/dts/qca/ar9132.dtsi
index 3bff63b..2f9a3ee 100644
--- a/arch/mips/boot/dts/qca/ar9132.dtsi
+++ b/arch/mips/boot/dts/qca/ar9132.dtsi
@@ -1,3 +1,5 @@
+#include <dt-bindings/clock/ath79-clk.h>
+
/ {
compatible = "qca,ar9132";
@@ -57,7 +59,7 @@
reg = <0x18020000 0x20>;
interrupts = <3>;
- clocks = <&pll 2>;
+ clocks = <&pll ATH79_CLK_AHB>;
clock-names = "uart";
reg-io-width = <4>;
@@ -100,7 +102,7 @@
interrupts = <4>;
- clocks = <&pll 2>;
+ clocks = <&pll ATH79_CLK_AHB>;
clock-names = "wdt";
};
@@ -144,7 +146,7 @@
compatible = "qca,ar9132-spi", "qca,ar7100-spi";
reg = <0x1f000000 0x10>;
- clocks = <&pll 2>;
+ clocks = <&pll ATH79_CLK_AHB>;
clock-names = "ahb";
status = "disabled";
diff --git a/include/dt-bindings/clock/ath79-clk.h b/include/dt-bindings/clock/ath79-clk.h
new file mode 100644
index 0000000..27359ad
--- /dev/null
+++ b/include/dt-bindings/clock/ath79-clk.h
@@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2014, 2016 Antony Pavlov <antonynpavlov@xxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#ifndef __DT_BINDINGS_ATH79_CLK_H
+#define __DT_BINDINGS_ATH79_CLK_H
+
+#define ATH79_CLK_CPU 0
+#define ATH79_CLK_DDR 1
+#define ATH79_CLK_AHB 2
+
+#define ATH79_CLK_END 3
+
+#endif /* __DT_BINDINGS_ATH79_CLK_H */
--
2.7.0
