[PATCH 8/9] ARM: zynq: clk: convert to platform driver

[Steffen Trumtrar]

Signed-off-by: Steffen Trumtrar <s.trumt...@pengutronix.de>
---
 arch/arm/mach-zynq/Kconfig        |  2 ++
 arch/arm/mach-zynq/clk-zynq7000.c | 25 ++++++++++++++++++++++---
 arch/arm/mach-zynq/zynq.c         |  1 +
 3 files changed, 25 insertions(+), 3 deletions(-)

diff --git a/arch/arm/mach-zynq/Kconfig b/arch/arm/mach-zynq/Kconfig
index cec749a..a4ce949 100644
--- a/arch/arm/mach-zynq/Kconfig
+++ b/arch/arm/mach-zynq/Kconfig
@@ -14,6 +14,8 @@ config ARCH_ZYNQ7000
        bool "Zynq-7000"
        select CPU_V7
        select DRIVER_SERIAL_CADENCE
+       select CLKDEV_LOOKUP
+       select COMMON_CLK
 
 endchoice
 
diff --git a/arch/arm/mach-zynq/clk-zynq7000.c 
b/arch/arm/mach-zynq/clk-zynq7000.c
index 0d3c3a8..74f08ad 100644
--- a/arch/arm/mach-zynq/clk-zynq7000.c
+++ b/arch/arm/mach-zynq/clk-zynq7000.c
@@ -335,7 +335,7 @@ static struct clk *zynq_cpu_subclk(const char *name,
        return &subclk->clk;
 }
 
-static int zynq_init_clks(void)
+static int zynq_clock_probe(struct device_d *dev)
 {
        void __iomem *slcr_base = (void __iomem *) ZYNQ_SLCR_BASE;
        unsigned long ps_clk_rate = 33333330;
@@ -365,9 +365,28 @@ static int zynq_init_clks(void)
        clks[cpu_1x] = zynq_cpu_subclk("cpu_1x", CPU_SUBCLK_1X,
                                        slcr_base + 0x120, slcr_base + 0x1C4);
 
-       clk_register_clkdev(clks[cpu_3x2x], NULL, "smp_twd0");
+       clk_register_clkdev(clks[cpu_3x2x], NULL, "arm_smp_twd");
        clk_register_clkdev(clks[uart0], NULL, "zynq_serial0");
        clk_register_clkdev(clks[uart1], NULL, "zynq_serial1");
        return 0;
 }
-postcore_initcall(zynq_init_clks);
+
+static __maybe_unused struct of_device_id zynq_clock_dt_ids[] = {
+       {
+               .compatible = "xlnx,zynq-clock",
+       }, {
+               /* sentinel */
+       }
+};
+
+static struct driver_d zynq_clock_driver = {
+       .probe  = zynq_clock_probe,
+       .name   = "zynq-clock",
+       .of_compatible = DRV_OF_COMPAT(zynq_clock_dt_ids),
+};
+
+static int zynq_clock_init(void)
+{
+       return platform_driver_register(&zynq_clock_driver);
+}
+postcore_initcall(zynq_clock_init);
diff --git a/arch/arm/mach-zynq/zynq.c b/arch/arm/mach-zynq/zynq.c
index 2043655..33fc1ab 100644
--- a/arch/arm/mach-zynq/zynq.c
+++ b/arch/arm/mach-zynq/zynq.c
@@ -20,6 +20,7 @@
 
 static int zynq_init(void)
 {
+       add_generic_device("zynq-clock", 0, NULL, ZYNQ_SLCR_BASE, 0x4000, 
IORESOURCE_MEM, NULL);
        return 0;
 }
 postcore_initcall(zynq_init);
-- 
1.8.2.rc2


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