ARM: mx31: Replace clk_register_clkdev with clock DT lookup
Similarly as it was done for mx6q, use a DT lookup in order to make maintainance
task for the clock devices easier.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
diff --git a/arch/arm/boot/dts/imx31.dtsi b/arch/arm/boot/dts/imx31.dtsi
index eef7099..454c2d1 100644
--- a/arch/arm/boot/dts/imx31.dtsi
+++ b/arch/arm/boot/dts/imx31.dtsi
@@ -45,6 +45,8 @@
compatible = "fsl,imx31-uart", "fsl,imx21-uart";
reg = <0x43f90000 0x4000>;
interrupts = <45>;
+ clocks = <&clks 10>, <&clks 30>;
+ clock-names = "ipg", "per";
status = "disabled";
};
@@ -52,12 +54,16 @@
compatible = "fsl,imx31-uart", "fsl,imx21-uart";
reg = <0x43f94000 0x4000>;
interrupts = <32>;
+ clocks = <&clks 10>, <&clks 31>;
+ clock-names = "ipg", "per";
status = "disabled";
};
uart4: serial@43fb0000 {
compatible = "fsl,imx31-uart", "fsl,imx21-uart";
reg = <0x43fb0000 0x4000>;
+ clocks = <&clks 10>, <&clks 49>;
+ clock-names = "ipg", "per";
interrupts = <46>;
status = "disabled";
};
@@ -66,6 +72,8 @@
compatible = "fsl,imx31-uart", "fsl,imx21-uart";
reg = <0x43fb4000 0x4000>;
interrupts = <47>;
+ clocks = <&clks 10>, <&clks 50>;
+ clock-names = "ipg", "per";
status = "disabled";
};
};
@@ -81,8 +89,17 @@
compatible = "fsl,imx31-uart", "fsl,imx21-uart";
reg = <0x5000c000 0x4000>;
interrupts = <18>;
+ clocks = <&clks 10>, <&clks 48>;
+ clock-names = "ipg", "per";
status = "disabled";
};
+
+ clks: ccm@53f80000{
+ compatible = "fsl,imx31-ccm";
+ reg = <0x53f80000 0x4000>;
+ interrupts = <0 31 0x04 0 53 0x04>;
+ #clock-cells = <1>;
+ };
};
};
};
diff --git a/arch/arm/mach-imx/clk-imx31.c b/arch/arm/mach-imx/clk-imx31.c
index 590dd87..a42494d 100644
--- a/arch/arm/mach-imx/clk-imx31.c
+++ b/arch/arm/mach-imx/clk-imx31.c
@@ -46,11 +46,13 @@
};
static struct clk *clk[clk_max];
+static struct clk_onecell_data clk_data;
int __init mx31_clocks_init(unsigned long fref)
{
void __iomem *base = MX31_IO_ADDRESS(MX31_CCM_BASE_ADDR);
int i;
+ struct device_node *np;
clk[dummy] = imx_clk_fixed("dummy", 0);
clk[ckih] = imx_clk_fixed("ckih", fref);
@@ -117,6 +119,14 @@
pr_err("imx31 clk %d: register failed with %ld\n",
i, PTR_ERR(clk[i]));
+ np = of_find_compatible_node(NULL, NULL, "fsl,imx31-ccm");
+
+ if (np) {
+ clk_data.clks = clk;
+ clk_data.clk_num = ARRAY_SIZE(clk);
+ of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
+ }
+
clk_register_clkdev(clk[gpt_gate], "per", "imx-gpt.0");
clk_register_clkdev(clk[ipg], "ipg", "imx-gpt.0");
clk_register_clkdev(clk[cspi1_gate], NULL, "imx31-cspi.0");
diff --git a/arch/arm/mach-imx/imx31-dt.c b/arch/arm/mach-imx/imx31-dt.c
index af476de..dc083d3 100644
--- a/arch/arm/mach-imx/imx31-dt.c
+++ b/arch/arm/mach-imx/imx31-dt.c
@@ -18,24 +18,9 @@
#include "common.h"
#include "mx31.h"
-static const struct of_dev_auxdata imx31_auxdata_lookup[] __initconst = {
- OF_DEV_AUXDATA("fsl,imx31-uart", MX31_UART1_BASE_ADDR,
- "imx21-uart.0", NULL),
- OF_DEV_AUXDATA("fsl,imx31-uart", MX31_UART2_BASE_ADDR,
- "imx21-uart.1", NULL),
- OF_DEV_AUXDATA("fsl,imx31-uart", MX31_UART3_BASE_ADDR,
- "imx21-uart.2", NULL),
- OF_DEV_AUXDATA("fsl,imx31-uart", MX31_UART4_BASE_ADDR,
- "imx21-uart.3", NULL),
- OF_DEV_AUXDATA("fsl,imx31-uart", MX31_UART5_BASE_ADDR,
- "imx21-uart.4", NULL),
- { /* sentinel */ }
-};
-
static void __init imx31_dt_init(void)
{
- of_platform_populate(NULL, of_default_bus_match_table,
- imx31_auxdata_lookup, NULL);
+ of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
}
static void __init imx31_timer_init(void)