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61b29b8268
At present devres.h is included in all files that include dm.h but few make use of it. Also this pulls in linux/compat which adds several more headers. Drop the automatic inclusion and require files to include devres themselves. This provides a good indication of which files use devres. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Anatolij Gustschin <agust@denx.de>
46 lines
810 B
C
46 lines
810 B
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2016 Google, Inc
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*/
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#include <common.h>
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#include <dm.h>
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#include <asm/io.h>
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#include <asm/arch/scu_ast2500.h>
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#include <linux/err.h>
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int ast_get_clk(struct udevice **devp)
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{
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return uclass_get_device_by_driver(UCLASS_CLK,
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DM_GET_DRIVER(aspeed_ast2500_scu), devp);
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}
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void *ast_get_scu(void)
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{
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struct ast2500_clk_priv *priv;
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struct udevice *dev;
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int ret;
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ret = ast_get_clk(&dev);
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if (ret)
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return ERR_PTR(ret);
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priv = dev_get_priv(dev);
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return priv->scu;
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}
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void ast_scu_unlock(struct ast2500_scu *scu)
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{
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writel(SCU_UNLOCK_VALUE, &scu->protection_key);
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while (!readl(&scu->protection_key))
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;
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}
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void ast_scu_lock(struct ast2500_scu *scu)
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{
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writel(~SCU_UNLOCK_VALUE, &scu->protection_key);
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while (readl(&scu->protection_key))
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;
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}
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