LXR linux/drivers/gpu/drm/arm/display/include/malidp

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/*
   3 * (C) COPYRIGHT 2018 ARM Limited. All rights reserved.
   4 * Author: James.Qian.Wang <james.qian.wang@arm.com>
   5 *
   6 */
   7#ifndef _MALIDP_IO_H_
   8#define _MALIDP_IO_H_
   9
  10#include <linux/io.h>
  11
  12static inline u32
  13malidp_read32(u32 __iomem *base, u32 offset)
  14{
  15        return readl((base + (offset >> 2)));
  16}
  17
  18static inline void
  19malidp_write32(u32 __iomem *base, u32 offset, u32 v)
  20{
  21        writel(v, (base + (offset >> 2)));
  22}
  23
  24static inline void
  25malidp_write64(u32 __iomem *base, u32 offset, u64 v)
  26{
  27        writel(lower_32_bits(v), (base + (offset >> 2)));
  28        writel(upper_32_bits(v), (base + (offset >> 2) + 1));
  29}
  30
  31static inline void
  32malidp_write32_mask(u32 __iomem *base, u32 offset, u32 m, u32 v)
  33{
  34        u32 tmp = malidp_read32(base, offset);
  35
  36        tmp &= (~m);
  37        malidp_write32(base, offset, v | tmp);
  38}
  39
  40static inline void
  41malidp_write_group(u32 __iomem *base, u32 offset, int num, const u32 *values)
  42{
  43        int i;
  44
  45        for (i = 0; i < num; i++)
  46                malidp_write32(base, offset + i * 4, values[i]);
  47}
  48
  49#endif /*_MALIDP_IO_H_*/
  50