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torvalds
GitHub Repository: torvalds/linux
Path: blob/master/drivers/gpu/drm/arm/display/include/malidp_io.h
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* (C) COPYRIGHT 2018 ARM Limited. All rights reserved.
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* Author: James.Qian.Wang <[email protected]>
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*
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*/
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#ifndef _MALIDP_IO_H_
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#define _MALIDP_IO_H_
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#include <linux/io.h>
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static inline u32
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malidp_read32(u32 __iomem *base, u32 offset)
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{
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return readl((base + (offset >> 2)));
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}
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static inline void
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malidp_write32(u32 __iomem *base, u32 offset, u32 v)
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{
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writel(v, (base + (offset >> 2)));
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}
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static inline void
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malidp_write64(u32 __iomem *base, u32 offset, u64 v)
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{
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writel(lower_32_bits(v), (base + (offset >> 2)));
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writel(upper_32_bits(v), (base + (offset >> 2) + 1));
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}
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static inline void
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malidp_write32_mask(u32 __iomem *base, u32 offset, u32 m, u32 v)
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{
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u32 tmp = malidp_read32(base, offset);
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tmp &= (~m);
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malidp_write32(base, offset, v | tmp);
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}
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static inline void
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malidp_write_group(u32 __iomem *base, u32 offset, int num, const u32 *values)
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{
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int i;
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for (i = 0; i < num; i++)
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malidp_write32(base, offset + i * 4, values[i]);
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}
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#endif /*_MALIDP_IO_H_*/
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