修改led为gpio

hc

2024-10-12 a5969cabbb4660eab42b6ef0412cbbd1200cf14d

 kernel/drivers/clk/samsung/clk-s3c2410-dclk.c
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@@ -1,9 +1,6 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * Copyright (c) 2013 Heiko Stuebner <heiko@sntech.de>
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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 version 2 as
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- * published by the Free Software Foundation.
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  *
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  * Common Clock Framework support for s3c24xx external clock output.
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  */
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@@ -12,13 +9,11 @@
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 #include <linux/slab.h>
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 #include <linux/clk.h>
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 #include <linux/clk-provider.h>
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+#include <linux/io.h>
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 #include <linux/platform_device.h>
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+#include <linux/platform_data/clk-s3c2410.h>
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 #include <linux/module.h>
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 #include "clk.h"
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-
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-/* legacy access to misccr, until dt conversion is finished */
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-#include <mach/hardware.h>
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-#include <mach/regs-gpio.h>
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 #define MUX_DCLK0	0
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 #define MUX_DCLK1	1
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@@ -54,6 +49,7 @@
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 	struct clk_hw		hw;
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 	u32			mask;
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 	u8			shift;
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+	unsigned int (*modify_misccr)(unsigned int clr, unsigned int chg);
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 };
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 #define to_s3c24xx_clkout(_hw) container_of(_hw, struct s3c24xx_clkout, hw)
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@@ -64,7 +60,7 @@
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 	int num_parents = clk_hw_get_num_parents(hw);
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 	u32 val;
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-	val = readl_relaxed(S3C24XX_MISCCR) >> clkout->shift;
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+	val = clkout->modify_misccr(0, 0) >> clkout->shift;
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 	val >>= clkout->shift;
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 	val &= clkout->mask;
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@@ -78,7 +74,7 @@
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 {
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 	struct s3c24xx_clkout *clkout = to_s3c24xx_clkout(hw);
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-	s3c2410_modify_misccr((clkout->mask << clkout->shift),
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+	clkout->modify_misccr((clkout->mask << clkout->shift),
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 			      (index << clkout->shift));
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 	return 0;
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@@ -94,9 +90,13 @@
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 		const char *name, const char **parent_names, u8 num_parents,
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 		u8 shift, u32 mask)
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 {
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+	struct s3c2410_clk_platform_data *pdata = dev_get_platdata(dev);
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 	struct s3c24xx_clkout *clkout;
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-	struct clk_init_data init = {};
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+	struct clk_init_data init;
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 	int ret;
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+
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+	if (!pdata)
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+		return ERR_PTR(-EINVAL);
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 	/* allocate the clkout */
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 	clkout = kzalloc(sizeof(*clkout), GFP_KERNEL);
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@@ -105,13 +105,14 @@
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 	init.name = name;
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 	init.ops = &s3c24xx_clkout_ops;
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-	init.flags = CLK_IS_BASIC;
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+	init.flags = 0;
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 	init.parent_names = parent_names;
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 	init.num_parents = num_parents;
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 	clkout->shift = shift;
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 	clkout->mask = mask;
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 	clkout->hw.init = &init;
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+	clkout->modify_misccr = pdata->modify_misccr;
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 	ret = clk_hw_register(dev, &clkout->hw);
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 	if (ret)
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@@ -240,7 +241,6 @@
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 static int s3c24xx_dclk_probe(struct platform_device *pdev)
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 {
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 	struct s3c24xx_dclk *s3c24xx_dclk;
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-	struct resource *mem;
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 	struct s3c24xx_dclk_drv_data *dclk_variant;
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 	struct clk_hw **clk_table;
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 	int ret, i;
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@@ -259,8 +259,7 @@
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 	platform_set_drvdata(pdev, s3c24xx_dclk);
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 	spin_lock_init(&s3c24xx_dclk->dclk_lock);
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-	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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-	s3c24xx_dclk->base = devm_ioremap_resource(&pdev->dev, mem);
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+	s3c24xx_dclk->base = devm_platform_ioremap_resource(pdev, 0);
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 	if (IS_ERR(s3c24xx_dclk->base))
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 		return PTR_ERR(s3c24xx_dclk->base);
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