mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-11 15:37:23 +00:00
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>
87 lines
2 KiB
C
87 lines
2 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright (C) 2019 DENX Software Engineering
|
|
* Lukasz Majewski, DENX Software Engineering, lukma@denx.de
|
|
*
|
|
* Copyright (C) 2011 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
|
|
*/
|
|
|
|
#define LOG_CATEGORY UCLASS_CLK
|
|
|
|
#include <common.h>
|
|
#include <clk.h>
|
|
#include <clk-uclass.h>
|
|
#include <div64.h>
|
|
#include <log.h>
|
|
#include <malloc.h>
|
|
#include <dm/device.h>
|
|
#include <dm/devres.h>
|
|
#include <linux/clk-provider.h>
|
|
#include <linux/err.h>
|
|
|
|
#include "clk.h"
|
|
|
|
#define UBOOT_DM_CLK_IMX_FIXED_FACTOR "ccf_clk_fixed_factor"
|
|
|
|
static ulong clk_factor_recalc_rate(struct clk *clk)
|
|
{
|
|
struct clk_fixed_factor *fix = to_clk_fixed_factor(clk);
|
|
unsigned long parent_rate = clk_get_parent_rate(clk);
|
|
unsigned long long int rate;
|
|
|
|
rate = (unsigned long long int)parent_rate * fix->mult;
|
|
do_div(rate, fix->div);
|
|
return (ulong)rate;
|
|
}
|
|
|
|
const struct clk_ops ccf_clk_fixed_factor_ops = {
|
|
.get_rate = clk_factor_recalc_rate,
|
|
};
|
|
|
|
struct clk *clk_hw_register_fixed_factor(struct device *dev,
|
|
const char *name, const char *parent_name, unsigned long flags,
|
|
unsigned int mult, unsigned int div)
|
|
{
|
|
struct clk_fixed_factor *fix;
|
|
struct clk *clk;
|
|
int ret;
|
|
|
|
fix = kzalloc(sizeof(*fix), GFP_KERNEL);
|
|
if (!fix)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
/* struct clk_fixed_factor assignments */
|
|
fix->mult = mult;
|
|
fix->div = div;
|
|
clk = &fix->clk;
|
|
clk->flags = flags;
|
|
|
|
ret = clk_register(clk, UBOOT_DM_CLK_IMX_FIXED_FACTOR, name,
|
|
parent_name);
|
|
if (ret) {
|
|
kfree(fix);
|
|
return ERR_PTR(ret);
|
|
}
|
|
|
|
return clk;
|
|
}
|
|
|
|
struct clk *clk_register_fixed_factor(struct device *dev, const char *name,
|
|
const char *parent_name, unsigned long flags,
|
|
unsigned int mult, unsigned int div)
|
|
{
|
|
struct clk *clk;
|
|
|
|
clk = clk_hw_register_fixed_factor(dev, name, parent_name, flags, mult,
|
|
div);
|
|
if (IS_ERR(clk))
|
|
return ERR_CAST(clk);
|
|
return clk;
|
|
}
|
|
|
|
U_BOOT_DRIVER(imx_clk_fixed_factor) = {
|
|
.name = UBOOT_DM_CLK_IMX_FIXED_FACTOR,
|
|
.id = UCLASS_CLK,
|
|
.ops = &ccf_clk_fixed_factor_ops,
|
|
.flags = DM_FLAG_PRE_RELOC,
|
|
};
|