forked from Minki/linux
62e59c4e69
Now that we've gotten rid of clk_readl() we can remove io.h from the clk-provider header and push out the io.h include to any code that isn't already including the io.h header but using things like readl/writel, etc. Found with this grep: git grep -l clk-provider.h | grep '.c$' | xargs git grep -L 'linux/io.h' | \ xargs git grep -l \ -e '\<__iowrite32_copy\>' --or \ -e '\<__ioread32_copy\>' --or \ -e '\<__iowrite64_copy\>' --or \ -e '\<ioremap_page_range\>' --or \ -e '\<ioremap_huge_init\>' --or \ -e '\<arch_ioremap_pud_supported\>' --or \ -e '\<arch_ioremap_pmd_supported\>' --or \ -e '\<devm_ioport_map\>' --or \ -e '\<devm_ioport_unmap\>' --or \ -e '\<IOMEM_ERR_PTR\>' --or \ -e '\<devm_ioremap\>' --or \ -e '\<devm_ioremap_nocache\>' --or \ -e '\<devm_ioremap_wc\>' --or \ -e '\<devm_iounmap\>' --or \ -e '\<devm_ioremap_release\>' --or \ -e '\<devm_memremap\>' --or \ -e '\<devm_memunmap\>' --or \ -e '\<__devm_memremap_pages\>' --or \ -e '\<pci_remap_cfgspace\>' --or \ -e '\<arch_has_dev_port\>' --or \ -e '\<arch_phys_wc_add\>' --or \ -e '\<arch_phys_wc_del\>' --or \ -e '\<memremap\>' --or \ -e '\<memunmap\>' --or \ -e '\<arch_io_reserve_memtype_wc\>' --or \ -e '\<arch_io_free_memtype_wc\>' --or \ -e '\<__io_aw\>' --or \ -e '\<__io_pbw\>' --or \ -e '\<__io_paw\>' --or \ -e '\<__io_pbr\>' --or \ -e '\<__io_par\>' --or \ -e '\<__raw_readb\>' --or \ -e '\<__raw_readw\>' --or \ -e '\<__raw_readl\>' --or \ -e '\<__raw_readq\>' --or \ -e '\<__raw_writeb\>' --or \ -e '\<__raw_writew\>' --or \ -e '\<__raw_writel\>' --or \ -e '\<__raw_writeq\>' --or \ -e '\<readb\>' --or \ -e '\<readw\>' --or \ -e '\<readl\>' --or \ -e '\<readq\>' --or \ -e '\<writeb\>' --or \ -e '\<writew\>' --or \ -e '\<writel\>' --or \ -e '\<writeq\>' --or \ -e '\<readb_relaxed\>' --or \ -e '\<readw_relaxed\>' --or \ -e '\<readl_relaxed\>' --or \ -e '\<readq_relaxed\>' --or \ -e '\<writeb_relaxed\>' --or \ -e '\<writew_relaxed\>' --or \ -e '\<writel_relaxed\>' --or \ -e '\<writeq_relaxed\>' --or \ -e '\<readsb\>' --or \ -e '\<readsw\>' --or \ -e '\<readsl\>' --or \ -e '\<readsq\>' --or \ -e '\<writesb\>' --or \ -e '\<writesw\>' --or \ -e '\<writesl\>' --or \ -e '\<writesq\>' --or \ -e '\<inb\>' --or \ -e '\<inw\>' --or \ -e '\<inl\>' --or \ -e '\<outb\>' --or \ -e '\<outw\>' --or \ -e '\<outl\>' --or \ -e '\<inb_p\>' --or \ -e '\<inw_p\>' --or \ -e '\<inl_p\>' --or \ -e '\<outb_p\>' --or \ -e '\<outw_p\>' --or \ -e '\<outl_p\>' --or \ -e '\<insb\>' --or \ -e '\<insw\>' --or \ -e '\<insl\>' --or \ -e '\<outsb\>' --or \ -e '\<outsw\>' --or \ -e '\<outsl\>' --or \ -e '\<insb_p\>' --or \ -e '\<insw_p\>' --or \ -e '\<insl_p\>' --or \ -e '\<outsb_p\>' --or \ -e '\<outsw_p\>' --or \ -e '\<outsl_p\>' --or \ -e '\<ioread8\>' --or \ -e '\<ioread16\>' --or \ -e '\<ioread32\>' --or \ -e '\<ioread64\>' --or \ -e '\<iowrite8\>' --or \ -e '\<iowrite16\>' --or \ -e '\<iowrite32\>' --or \ -e '\<iowrite64\>' --or \ -e '\<ioread16be\>' --or \ -e '\<ioread32be\>' --or \ -e '\<ioread64be\>' --or \ -e '\<iowrite16be\>' --or \ -e '\<iowrite32be\>' --or \ -e '\<iowrite64be\>' --or \ -e '\<ioread8_rep\>' --or \ -e '\<ioread16_rep\>' --or \ -e '\<ioread32_rep\>' --or \ -e '\<ioread64_rep\>' --or \ -e '\<iowrite8_rep\>' --or \ -e '\<iowrite16_rep\>' --or \ -e '\<iowrite32_rep\>' --or \ -e '\<iowrite64_rep\>' --or \ -e '\<__io_virt\>' --or \ -e '\<pci_iounmap\>' --or \ -e '\<virt_to_phys\>' --or \ -e '\<phys_to_virt\>' --or \ -e '\<ioremap_uc\>' --or \ -e '\<ioremap\>' --or \ -e '\<__ioremap\>' --or \ -e '\<iounmap\>' --or \ -e '\<ioremap\>' --or \ -e '\<ioremap_nocache\>' --or \ -e '\<ioremap_uc\>' --or \ -e '\<ioremap_wc\>' --or \ -e '\<ioremap_wc\>' --or \ -e '\<ioremap_wt\>' --or \ -e '\<ioport_map\>' --or \ -e '\<ioport_unmap\>' --or \ -e '\<ioport_map\>' --or \ -e '\<ioport_unmap\>' --or \ -e '\<xlate_dev_kmem_ptr\>' --or \ -e '\<xlate_dev_mem_ptr\>' --or \ -e '\<unxlate_dev_mem_ptr\>' --or \ -e '\<virt_to_bus\>' --or \ -e '\<bus_to_virt\>' --or \ -e '\<memset_io\>' --or \ -e '\<memcpy_fromio\>' --or \ -e '\<memcpy_toio\>' I also reordered a couple includes when they weren't alphabetical and removed clk.h from kona, replacing it with clk-provider.h because that driver doesn't use clk consumer APIs. Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Chen-Yu Tsai <wens@csie.org> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com> Acked-by: Tero Kristo <t-kristo@ti.com> Acked-by: Sekhar Nori <nsekhar@ti.com> Cc: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Mark Brown <broonie@kernel.org> Cc: Chris Zankel <chris@zankel.net> Acked-by: Max Filippov <jcmvbkbc@gmail.com> Acked-by: John Crispin <john@phrozen.org> Acked-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
122 lines
3.6 KiB
C
122 lines
3.6 KiB
C
/*
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* Copyright 2013 Emilio López
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* Emilio López <emilio@elopez.com.ar>
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*
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* Copyright 2013 Chen-Yu Tsai
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* Chen-Yu Tsai <wens@csie.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/clk-provider.h>
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#include <linux/io.h>
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#include <linux/of.h>
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#include <linux/of_address.h>
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#include <linux/slab.h>
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static DEFINE_SPINLOCK(gmac_lock);
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/**
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* sun7i_a20_gmac_clk_setup - Setup function for A20/A31 GMAC clock module
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*
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* This clock looks something like this
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* ________________________
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* MII TX clock from PHY >-----|___________ _________|----> to GMAC core
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* GMAC Int. RGMII TX clk >----|___________\__/__gate---|----> to PHY
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* Ext. 125MHz RGMII TX clk >--|__divider__/ |
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* |________________________|
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*
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* The external 125 MHz reference is optional, i.e. GMAC can use its
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* internal TX clock just fine. The A31 GMAC clock module does not have
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* the divider controls for the external reference.
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*
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* To keep it simple, let the GMAC use either the MII TX clock for MII mode,
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* and its internal TX clock for GMII and RGMII modes. The GMAC driver should
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* select the appropriate source and gate/ungate the output to the PHY.
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*
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* Only the GMAC should use this clock. Altering the clock so that it doesn't
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* match the GMAC's operation parameters will result in the GMAC not being
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* able to send traffic out. The GMAC driver should set the clock rate and
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* enable/disable this clock to configure the required state. The clock
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* driver then responds by auto-reparenting the clock.
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*/
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#define SUN7I_A20_GMAC_GPIT 2
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#define SUN7I_A20_GMAC_MASK 0x3
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#define SUN7I_A20_GMAC_PARENTS 2
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static u32 sun7i_a20_gmac_mux_table[SUN7I_A20_GMAC_PARENTS] = {
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0x00, /* Select mii_phy_tx_clk */
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0x02, /* Select gmac_int_tx_clk */
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};
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static void __init sun7i_a20_gmac_clk_setup(struct device_node *node)
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{
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struct clk *clk;
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struct clk_mux *mux;
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struct clk_gate *gate;
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const char *clk_name = node->name;
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const char *parents[SUN7I_A20_GMAC_PARENTS];
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void __iomem *reg;
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if (of_property_read_string(node, "clock-output-names", &clk_name))
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return;
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/* allocate mux and gate clock structs */
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mux = kzalloc(sizeof(struct clk_mux), GFP_KERNEL);
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if (!mux)
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return;
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gate = kzalloc(sizeof(struct clk_gate), GFP_KERNEL);
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if (!gate)
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goto free_mux;
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/* gmac clock requires exactly 2 parents */
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if (of_clk_parent_fill(node, parents, 2) != 2)
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goto free_gate;
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reg = of_iomap(node, 0);
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if (!reg)
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goto free_gate;
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/* set up gate and fixed rate properties */
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gate->reg = reg;
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gate->bit_idx = SUN7I_A20_GMAC_GPIT;
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gate->lock = &gmac_lock;
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mux->reg = reg;
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mux->mask = SUN7I_A20_GMAC_MASK;
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mux->table = sun7i_a20_gmac_mux_table;
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mux->lock = &gmac_lock;
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clk = clk_register_composite(NULL, clk_name,
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parents, SUN7I_A20_GMAC_PARENTS,
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&mux->hw, &clk_mux_ops,
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NULL, NULL,
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&gate->hw, &clk_gate_ops,
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0);
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if (IS_ERR(clk))
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goto iounmap_reg;
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of_clk_add_provider(node, of_clk_src_simple_get, clk);
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return;
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iounmap_reg:
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iounmap(reg);
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free_gate:
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kfree(gate);
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free_mux:
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kfree(mux);
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}
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CLK_OF_DECLARE(sun7i_a20_gmac, "allwinner,sun7i-a20-gmac-clk",
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sun7i_a20_gmac_clk_setup);
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