diff options
Diffstat (limited to 'drivers/gpu/drm/sun4i/sun8i_tcon_top.h')
| -rw-r--r-- | drivers/gpu/drm/sun4i/sun8i_tcon_top.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/drivers/gpu/drm/sun4i/sun8i_tcon_top.h b/drivers/gpu/drm/sun4i/sun8i_tcon_top.h new file mode 100644 index 000000000..0390584a3 --- /dev/null +++ b/drivers/gpu/drm/sun4i/sun8i_tcon_top.h @@ -0,0 +1,44 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* Copyright (c) 2018 Jernej Skrabec <jernej.skrabec@siol.net> */ + +#ifndef _SUN8I_TCON_TOP_H_ +#define _SUN8I_TCON_TOP_H_ + +#include <linux/clk.h> +#include <linux/clk-provider.h> +#include <linux/reset.h> +#include <linux/spinlock.h> + +#define TCON_TOP_TCON_TV_SETUP_REG 0x00 + +#define TCON_TOP_PORT_SEL_REG 0x1C +#define TCON_TOP_PORT_DE0_MSK GENMASK(1, 0) +#define TCON_TOP_PORT_DE1_MSK GENMASK(5, 4) + +#define TCON_TOP_GATE_SRC_REG 0x20 +#define TCON_TOP_HDMI_SRC_MSK GENMASK(29, 28) +#define TCON_TOP_TCON_TV1_GATE 24 +#define TCON_TOP_TCON_TV0_GATE 20 +#define TCON_TOP_TCON_DSI_GATE 16 + +#define CLK_NUM 3 + +struct sun8i_tcon_top { + struct clk *bus; + struct clk_hw_onecell_data *clk_data; + void __iomem *regs; + struct reset_control *rst; + + /* + * spinlock is used to synchronize access to same + * register where multiple clock gates can be set. + */ + spinlock_t reg_lock; +}; + +extern const struct of_device_id sun8i_tcon_top_of_table[]; + +int sun8i_tcon_top_set_hdmi_src(struct device *dev, int tcon); +int sun8i_tcon_top_de_config(struct device *dev, int mixer, int tcon); + +#endif /* _SUN8I_TCON_TOP_H_ */ |