xref: /OK3568_Linux_fs/kernel/drivers/gpu/drm/zte/zx_drm_drv.h (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun  * Copyright 2016 Linaro Ltd.
4*4882a593Smuzhiyun  * Copyright 2016 ZTE Corporation.
5*4882a593Smuzhiyun  */
6*4882a593Smuzhiyun 
7*4882a593Smuzhiyun #ifndef __ZX_DRM_DRV_H__
8*4882a593Smuzhiyun #define __ZX_DRM_DRV_H__
9*4882a593Smuzhiyun 
10*4882a593Smuzhiyun extern struct platform_driver zx_crtc_driver;
11*4882a593Smuzhiyun extern struct platform_driver zx_hdmi_driver;
12*4882a593Smuzhiyun extern struct platform_driver zx_tvenc_driver;
13*4882a593Smuzhiyun extern struct platform_driver zx_vga_driver;
14*4882a593Smuzhiyun 
zx_readl(void __iomem * reg)15*4882a593Smuzhiyun static inline u32 zx_readl(void __iomem *reg)
16*4882a593Smuzhiyun {
17*4882a593Smuzhiyun 	return readl_relaxed(reg);
18*4882a593Smuzhiyun }
19*4882a593Smuzhiyun 
zx_writel(void __iomem * reg,u32 val)20*4882a593Smuzhiyun static inline void zx_writel(void __iomem *reg, u32 val)
21*4882a593Smuzhiyun {
22*4882a593Smuzhiyun 	writel_relaxed(val, reg);
23*4882a593Smuzhiyun }
24*4882a593Smuzhiyun 
zx_writel_mask(void __iomem * reg,u32 mask,u32 val)25*4882a593Smuzhiyun static inline void zx_writel_mask(void __iomem *reg, u32 mask, u32 val)
26*4882a593Smuzhiyun {
27*4882a593Smuzhiyun 	u32 tmp;
28*4882a593Smuzhiyun 
29*4882a593Smuzhiyun 	tmp = zx_readl(reg);
30*4882a593Smuzhiyun 	tmp = (tmp & ~mask) | (val & mask);
31*4882a593Smuzhiyun 	zx_writel(reg, tmp);
32*4882a593Smuzhiyun }
33*4882a593Smuzhiyun 
34*4882a593Smuzhiyun #endif /* __ZX_DRM_DRV_H__ */
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