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560e1e0050
Define LOG_CATEGORY to allow filtering with log command for generic clock and CCF clocks. This patch also change existing printf, debug and pr_ macro to log_ or dev_ macro. Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Reviewed-by: Sean Anderson <seanga2@gmail.com>
88 lines
2.0 KiB
C
88 lines
2.0 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2019 DENX Software Engineering
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* Lukasz Majewski, DENX Software Engineering, lukma@denx.de
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*
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* Copyright (C) 2011 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
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*/
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#define LOG_CATEGORY UCLASS_CLK
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#include <common.h>
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#include <clk.h>
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#include <clk-uclass.h>
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#include <div64.h>
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#include <log.h>
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#include <malloc.h>
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#include <dm/device.h>
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#include <dm/devres.h>
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#include <linux/clk-provider.h>
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#include <linux/err.h>
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#include "clk.h"
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#define UBOOT_DM_CLK_IMX_FIXED_FACTOR "ccf_clk_fixed_factor"
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static ulong clk_factor_recalc_rate(struct clk *clk)
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{
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struct clk_fixed_factor *fix = to_clk_fixed_factor(clk);
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unsigned long parent_rate = clk_get_parent_rate(clk);
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unsigned long long int rate;
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rate = (unsigned long long int)parent_rate * fix->mult;
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do_div(rate, fix->div);
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return (ulong)rate;
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}
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const struct clk_ops ccf_clk_fixed_factor_ops = {
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.get_rate = clk_factor_recalc_rate,
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};
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struct clk *clk_hw_register_fixed_factor(struct device *dev,
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const char *name, const char *parent_name, unsigned long flags,
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unsigned int mult, unsigned int div)
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{
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struct clk_fixed_factor *fix;
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struct clk *clk;
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int ret;
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fix = kzalloc(sizeof(*fix), GFP_KERNEL);
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if (!fix)
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return ERR_PTR(-ENOMEM);
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/* struct clk_fixed_factor assignments */
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fix->mult = mult;
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fix->div = div;
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clk = &fix->clk;
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clk->flags = flags;
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ret = clk_register(clk, UBOOT_DM_CLK_IMX_FIXED_FACTOR, name,
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parent_name);
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if (ret) {
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kfree(fix);
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return ERR_PTR(ret);
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}
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return clk;
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}
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struct clk *clk_register_fixed_factor(struct device *dev, const char *name,
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const char *parent_name, unsigned long flags,
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unsigned int mult, unsigned int div)
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{
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struct clk *clk;
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clk = clk_hw_register_fixed_factor(dev, name, parent_name, flags, mult,
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div);
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if (IS_ERR(clk))
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return ERR_CAST(clk);
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return clk;
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}
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U_BOOT_DRIVER(imx_clk_fixed_factor) = {
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.name = UBOOT_DM_CLK_IMX_FIXED_FACTOR,
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.id = UCLASS_CLK,
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.ops = &ccf_clk_fixed_factor_ops,
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.flags = DM_FLAG_PRE_RELOC,
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};
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