drivers/gpu/drm/zte/zx_drm_drv.h

   1 /*
   2  * Copyright 2016 Linaro Ltd.
   3  * Copyright 2016 ZTE Corporation.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8  *
   9  */
  10
  11 #ifndef __ZX_DRM_DRV_H__
  12 #define __ZX_DRM_DRV_H__
  13
  14 extern struct platform_driver zx_crtc_driver;
  15 extern struct platform_driver zx_hdmi_driver;
  16 extern struct platform_driver zx_tvenc_driver;
  17 extern struct platform_driver zx_vga_driver;
  18
  19 static inline u32 zx_readl(void __iomem *reg)
  20 {
  21         return readl_relaxed(reg);
  22 }
  23
  24 static inline void zx_writel(void __iomem *reg, u32 val)
  25 {
  26         writel_relaxed(val, reg);
  27 }
  28
  29 static inline void zx_writel_mask(void __iomem *reg, u32 mask, u32 val)
  30 {
  31         u32 tmp;
  32
  33         tmp = zx_readl(reg);
  34         tmp = (tmp & ~mask) | (val & mask);
  35         zx_writel(reg, tmp);
  36 }
  37
  38 #endif /* __ZX_DRM_DRV_H__ */