diff options
Diffstat (limited to 'drivers/gpu/drm/mcde/mcde_drm.h')
| -rw-r--r-- | drivers/gpu/drm/mcde/mcde_drm.h | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/drivers/gpu/drm/mcde/mcde_drm.h b/drivers/gpu/drm/mcde/mcde_drm.h new file mode 100644 index 000000000..ecb70b4b7 --- /dev/null +++ b/drivers/gpu/drm/mcde/mcde_drm.h @@ -0,0 +1,118 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (C) 2018 Linus Walleij <linus.walleij@linaro.org> + * Parts of this file were based on the MCDE driver by Marcus Lorentzon + * (C) ST-Ericsson SA 2013 + */ +#include <drm/drm_simple_kms_helper.h> + +#ifndef _MCDE_DRM_H_ +#define _MCDE_DRM_H_ + +/* Shared basic registers */ +#define MCDE_CR 0x00000000 +#define MCDE_CR_IFIFOEMPTYLINECOUNT_V422_SHIFT 0 +#define MCDE_CR_IFIFOEMPTYLINECOUNT_V422_MASK 0x0000003F +#define MCDE_CR_IFIFOCTRLEN BIT(15) +#define MCDE_CR_UFRECOVERY_MODE_V422 BIT(16) +#define MCDE_CR_WRAP_MODE_V422_SHIFT BIT(17) +#define MCDE_CR_AUTOCLKG_EN BIT(30) +#define MCDE_CR_MCDEEN BIT(31) + +#define MCDE_CONF0 0x00000004 +#define MCDE_CONF0_SYNCMUX0 BIT(0) +#define MCDE_CONF0_SYNCMUX1 BIT(1) +#define MCDE_CONF0_SYNCMUX2 BIT(2) +#define MCDE_CONF0_SYNCMUX3 BIT(3) +#define MCDE_CONF0_SYNCMUX4 BIT(4) +#define MCDE_CONF0_SYNCMUX5 BIT(5) +#define MCDE_CONF0_SYNCMUX6 BIT(6) +#define MCDE_CONF0_SYNCMUX7 BIT(7) +#define MCDE_CONF0_IFIFOCTRLWTRMRKLVL_SHIFT 12 +#define MCDE_CONF0_IFIFOCTRLWTRMRKLVL_MASK 0x00007000 +#define MCDE_CONF0_OUTMUX0_SHIFT 16 +#define MCDE_CONF0_OUTMUX0_MASK 0x00070000 +#define MCDE_CONF0_OUTMUX1_SHIFT 19 +#define MCDE_CONF0_OUTMUX1_MASK 0x00380000 +#define MCDE_CONF0_OUTMUX2_SHIFT 22 +#define MCDE_CONF0_OUTMUX2_MASK 0x01C00000 +#define MCDE_CONF0_OUTMUX3_SHIFT 25 +#define MCDE_CONF0_OUTMUX3_MASK 0x0E000000 +#define MCDE_CONF0_OUTMUX4_SHIFT 28 +#define MCDE_CONF0_OUTMUX4_MASK 0x70000000 + +#define MCDE_SSP 0x00000008 +#define MCDE_AIS 0x00000100 +#define MCDE_IMSCERR 0x00000110 +#define MCDE_RISERR 0x00000120 +#define MCDE_MISERR 0x00000130 +#define MCDE_SISERR 0x00000140 + +enum mcde_flow_mode { + /* One-shot mode: flow stops after one frame */ + MCDE_COMMAND_ONESHOT_FLOW, + /* Command mode with tearing effect (TE) IRQ sync */ + MCDE_COMMAND_TE_FLOW, + /* + * Command mode with bus turn-around (BTA) and tearing effect + * (TE) IRQ sync. + */ + MCDE_COMMAND_BTA_TE_FLOW, + /* Video mode with tearing effect (TE) sync IRQ */ + MCDE_VIDEO_TE_FLOW, + /* Video mode with the formatter itself as sync source */ + MCDE_VIDEO_FORMATTER_FLOW, + /* DPI video with the formatter itsels as sync source */ + MCDE_DPI_FORMATTER_FLOW, +}; + +struct mcde { + struct drm_device drm; + struct device *dev; + struct drm_panel *panel; + struct drm_bridge *bridge; + struct drm_connector *connector; + struct drm_simple_display_pipe pipe; + struct mipi_dsi_device *mdsi; + bool dpi_output; + s16 stride; + enum mcde_flow_mode flow_mode; + unsigned int flow_active; + spinlock_t flow_lock; /* Locks the channel flow control */ + + void __iomem *regs; + + struct clk *mcde_clk; + struct clk *lcd_clk; + struct clk *hdmi_clk; + /* Handles to the clock dividers for FIFO A and B */ + struct clk *fifoa_clk; + struct clk *fifob_clk; + /* Locks the MCDE FIFO control register A and B */ + spinlock_t fifo_crx1_lock; + + struct regulator *epod; + struct regulator *vana; +}; + +#define to_mcde(dev) container_of(dev, struct mcde, drm) + +static inline bool mcde_flow_is_video(struct mcde *mcde) +{ + return (mcde->flow_mode == MCDE_VIDEO_TE_FLOW || + mcde->flow_mode == MCDE_VIDEO_FORMATTER_FLOW); +} + +bool mcde_dsi_irq(struct mipi_dsi_device *mdsi); +void mcde_dsi_te_request(struct mipi_dsi_device *mdsi); +void mcde_dsi_enable(struct drm_bridge *bridge); +void mcde_dsi_disable(struct drm_bridge *bridge); +extern struct platform_driver mcde_dsi_driver; + +void mcde_display_irq(struct mcde *mcde); +void mcde_display_disable_irqs(struct mcde *mcde); +int mcde_display_init(struct drm_device *drm); + +int mcde_init_clock_divider(struct mcde *mcde); + +#endif /* _MCDE_DRM_H_ */ |