ARM: OMAP2: clock: add DT boot support for cpufreq_ck
The clock and clkdev for this are added manually. Signed-off-by: Tero Kristo <t-kristo@ti.com>
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@ -208,3 +208,56 @@ void omap2xxx_clkt_vps_late_init(void)
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clk_put(c);
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}
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}
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#ifdef CONFIG_OF
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#include <linux/clk-provider.h>
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#include <linux/clkdev.h>
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static const struct clk_ops virt_prcm_set_ops = {
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.recalc_rate = &omap2_table_mpu_recalc,
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.set_rate = &omap2_select_table_rate,
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.round_rate = &omap2_round_to_table_rate,
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};
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/**
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* omap2xxx_clkt_vps_init - initialize virt_prcm_set clock
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*
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* Does a manual init for the virtual prcm DVFS clock for OMAP2. This
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* function is called only from omap2 DT clock init, as the virtual
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* node is not modelled in the DT clock data.
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*/
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void omap2xxx_clkt_vps_init(void)
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{
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struct clk_init_data init = { NULL };
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struct clk_hw_omap *hw = NULL;
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struct clk *clk;
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const char *parent_name = "mpu_ck";
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struct clk_lookup *lookup = NULL;
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omap2xxx_clkt_vps_late_init();
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omap2xxx_clkt_vps_check_bootloader_rates();
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hw = kzalloc(sizeof(*hw), GFP_KERNEL);
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lookup = kzalloc(sizeof(*lookup), GFP_KERNEL);
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if (!hw || !lookup)
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goto cleanup;
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init.name = "virt_prcm_set";
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init.ops = &virt_prcm_set_ops;
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init.parent_names = &parent_name;
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init.num_parents = 1;
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hw->hw.init = &init;
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clk = clk_register(NULL, &hw->hw);
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lookup->dev_id = NULL;
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lookup->con_id = "cpufreq_ck";
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lookup->clk = clk;
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clkdev_add(lookup);
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return;
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cleanup:
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kfree(hw);
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kfree(lookup);
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}
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#endif
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@ -229,6 +229,8 @@ static int __init omap2xxx_dt_clk_init(int soc_type)
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else
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ti_dt_clocks_register(omap2430_clks);
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omap2xxx_clkt_vps_init();
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omap2_clk_disable_autoidle_all();
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omap2_clk_enable_init_clocks(enable_init_clks,
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@ -283,6 +283,7 @@ unsigned long omap2_dpllcore_recalc(struct clk_hw *hw,
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int omap2_reprogram_dpllcore(struct clk_hw *clk, unsigned long rate,
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unsigned long parent_rate);
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void omap2xxx_clkt_dpllcore_init(struct clk_hw *hw);
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void omap2xxx_clkt_vps_init(void);
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void __iomem *ti_clk_get_reg_addr(struct device_node *node, int index);
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void ti_dt_clocks_register(struct ti_dt_clk *oclks);
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