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2c80661d2e
The drivers current default configuration drives the pixel data on rising edge of the pixel clock. However, most display sample data on rising edge... This leads to color shift artefacts visible especially at edges. This patch changes the relevant defines to be useful and actually set the bits, and changes pixel clock polarity to drive the pixel data on falling edge by default. The patch also adds an explicit pixel clock polarity flag to the display introduced with the driver (NEC WQVGA "nec,nl4827hc19-05b") using the new bus_flags field to retain the initial behavior. Signed-off-by: Stefan Agner <stefan@agner.ch>
202 lines
5.8 KiB
C
202 lines
5.8 KiB
C
/*
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* Copyright 2015 Freescale Semiconductor, Inc.
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*
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* Freescale DCU drm device driver
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef __FSL_DCU_DRM_DRV_H__
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#define __FSL_DCU_DRM_DRV_H__
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#include "fsl_dcu_drm_crtc.h"
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#include "fsl_dcu_drm_output.h"
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#include "fsl_dcu_drm_plane.h"
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#define DCU_DCU_MODE 0x0010
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#define DCU_MODE_BLEND_ITER(x) ((x) << 20)
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#define DCU_MODE_RASTER_EN BIT(14)
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#define DCU_MODE_DCU_MODE(x) (x)
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#define DCU_MODE_DCU_MODE_MASK 0x03
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#define DCU_MODE_OFF 0
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#define DCU_MODE_NORMAL 1
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#define DCU_MODE_TEST 2
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#define DCU_MODE_COLORBAR 3
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#define DCU_BGND 0x0014
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#define DCU_BGND_R(x) ((x) << 16)
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#define DCU_BGND_G(x) ((x) << 8)
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#define DCU_BGND_B(x) (x)
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#define DCU_DISP_SIZE 0x0018
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#define DCU_DISP_SIZE_DELTA_Y(x) ((x) << 16)
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/*Regisiter value 1/16 of horizontal resolution*/
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#define DCU_DISP_SIZE_DELTA_X(x) ((x) >> 4)
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#define DCU_HSYN_PARA 0x001c
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#define DCU_HSYN_PARA_BP(x) ((x) << 22)
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#define DCU_HSYN_PARA_PW(x) ((x) << 11)
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#define DCU_HSYN_PARA_FP(x) (x)
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#define DCU_VSYN_PARA 0x0020
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#define DCU_VSYN_PARA_BP(x) ((x) << 22)
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#define DCU_VSYN_PARA_PW(x) ((x) << 11)
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#define DCU_VSYN_PARA_FP(x) (x)
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#define DCU_SYN_POL 0x0024
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#define DCU_SYN_POL_INV_PXCK BIT(6)
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#define DCU_SYN_POL_NEG BIT(5)
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#define DCU_SYN_POL_INV_VS_LOW BIT(1)
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#define DCU_SYN_POL_INV_HS_LOW BIT(0)
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#define DCU_THRESHOLD 0x0028
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#define DCU_THRESHOLD_LS_BF_VS(x) ((x) << 16)
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#define DCU_THRESHOLD_OUT_BUF_HIGH(x) ((x) << 8)
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#define DCU_THRESHOLD_OUT_BUF_LOW(x) (x)
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#define BF_VS_VAL 0x03
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#define BUF_MAX_VAL 0x78
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#define BUF_MIN_VAL 0x0a
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#define DCU_INT_STATUS 0x002C
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#define DCU_INT_STATUS_VSYNC BIT(0)
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#define DCU_INT_STATUS_UNDRUN BIT(1)
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#define DCU_INT_STATUS_LSBFVS BIT(2)
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#define DCU_INT_STATUS_VBLANK BIT(3)
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#define DCU_INT_STATUS_CRCREADY BIT(4)
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#define DCU_INT_STATUS_CRCOVERFLOW BIT(5)
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#define DCU_INT_STATUS_P1FIFOLO BIT(6)
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#define DCU_INT_STATUS_P1FIFOHI BIT(7)
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#define DCU_INT_STATUS_P2FIFOLO BIT(8)
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#define DCU_INT_STATUS_P2FIFOHI BIT(9)
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#define DCU_INT_STATUS_PROGEND BIT(10)
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#define DCU_INT_STATUS_IPMERROR BIT(11)
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#define DCU_INT_STATUS_LYRTRANS BIT(12)
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#define DCU_INT_STATUS_DMATRANS BIT(14)
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#define DCU_INT_STATUS_P3FIFOLO BIT(16)
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#define DCU_INT_STATUS_P3FIFOHI BIT(17)
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#define DCU_INT_STATUS_P4FIFOLO BIT(18)
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#define DCU_INT_STATUS_P4FIFOHI BIT(19)
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#define DCU_INT_STATUS_P1EMPTY BIT(26)
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#define DCU_INT_STATUS_P2EMPTY BIT(27)
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#define DCU_INT_STATUS_P3EMPTY BIT(28)
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#define DCU_INT_STATUS_P4EMPTY BIT(29)
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#define DCU_INT_MASK 0x0030
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#define DCU_INT_MASK_VSYNC BIT(0)
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#define DCU_INT_MASK_UNDRUN BIT(1)
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#define DCU_INT_MASK_LSBFVS BIT(2)
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#define DCU_INT_MASK_VBLANK BIT(3)
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#define DCU_INT_MASK_CRCREADY BIT(4)
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#define DCU_INT_MASK_CRCOVERFLOW BIT(5)
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#define DCU_INT_MASK_P1FIFOLO BIT(6)
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#define DCU_INT_MASK_P1FIFOHI BIT(7)
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#define DCU_INT_MASK_P2FIFOLO BIT(8)
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#define DCU_INT_MASK_P2FIFOHI BIT(9)
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#define DCU_INT_MASK_PROGEND BIT(10)
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#define DCU_INT_MASK_IPMERROR BIT(11)
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#define DCU_INT_MASK_LYRTRANS BIT(12)
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#define DCU_INT_MASK_DMATRANS BIT(14)
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#define DCU_INT_MASK_P3FIFOLO BIT(16)
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#define DCU_INT_MASK_P3FIFOHI BIT(17)
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#define DCU_INT_MASK_P4FIFOLO BIT(18)
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#define DCU_INT_MASK_P4FIFOHI BIT(19)
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#define DCU_INT_MASK_P1EMPTY BIT(26)
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#define DCU_INT_MASK_P2EMPTY BIT(27)
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#define DCU_INT_MASK_P3EMPTY BIT(28)
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#define DCU_INT_MASK_P4EMPTY BIT(29)
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#define DCU_DIV_RATIO 0x0054
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#define DCU_UPDATE_MODE 0x00cc
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#define DCU_UPDATE_MODE_MODE BIT(31)
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#define DCU_UPDATE_MODE_READREG BIT(30)
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#define DCU_DCFB_MAX 0x300
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#define DCU_CTRLDESCLN(layer, reg) (0x200 + (reg - 1) * 4 + (layer) * 0x40)
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#define DCU_LAYER_HEIGHT(x) ((x) << 16)
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#define DCU_LAYER_WIDTH(x) (x)
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#define DCU_LAYER_POSY(x) ((x) << 16)
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#define DCU_LAYER_POSX(x) (x)
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#define DCU_LAYER_EN BIT(31)
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#define DCU_LAYER_TILE_EN BIT(30)
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#define DCU_LAYER_DATA_SEL_CLUT BIT(29)
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#define DCU_LAYER_SAFETY_EN BIT(28)
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#define DCU_LAYER_TRANS(x) ((x) << 20)
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#define DCU_LAYER_BPP(x) ((x) << 16)
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#define DCU_LAYER_RLE_EN BIT(15)
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#define DCU_LAYER_LUOFFS(x) ((x) << 4)
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#define DCU_LAYER_BB_ON BIT(2)
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#define DCU_LAYER_AB_NONE 0
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#define DCU_LAYER_AB_CHROMA_KEYING 1
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#define DCU_LAYER_AB_WHOLE_FRAME 2
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#define DCU_LAYER_CKMAX_R(x) ((x) << 16)
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#define DCU_LAYER_CKMAX_G(x) ((x) << 8)
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#define DCU_LAYER_CKMAX_B(x) (x)
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#define DCU_LAYER_CKMIN_R(x) ((x) << 16)
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#define DCU_LAYER_CKMIN_G(x) ((x) << 8)
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#define DCU_LAYER_CKMIN_B(x) (x)
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#define DCU_LAYER_TILE_VER(x) ((x) << 16)
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#define DCU_LAYER_TILE_HOR(x) (x)
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#define DCU_LAYER_FG_FCOLOR(x) (x)
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#define DCU_LAYER_BG_BCOLOR(x) (x)
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#define DCU_LAYER_POST_SKIP(x) ((x) << 16)
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#define DCU_LAYER_PRE_SKIP(x) (x)
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#define FSL_DCU_RGB565 4
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#define FSL_DCU_RGB888 5
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#define FSL_DCU_ARGB8888 6
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#define FSL_DCU_ARGB1555 11
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#define FSL_DCU_ARGB4444 12
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#define FSL_DCU_YUV422 14
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#define VF610_LAYER_REG_NUM 9
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#define LS1021A_LAYER_REG_NUM 10
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struct clk;
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struct device;
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struct drm_device;
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struct fsl_dcu_soc_data {
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const char *name;
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/*total layer number*/
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unsigned int total_layer;
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/*max layer number DCU supported*/
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unsigned int max_layer;
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};
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struct fsl_dcu_drm_device {
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struct device *dev;
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struct device_node *np;
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struct regmap *regmap;
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int irq;
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struct clk *clk;
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struct clk *pix_clk;
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struct fsl_tcon *tcon;
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/*protects hardware register*/
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spinlock_t irq_lock;
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struct drm_device *drm;
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struct drm_fbdev_cma *fbdev;
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struct drm_crtc crtc;
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struct drm_encoder encoder;
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struct fsl_dcu_drm_connector connector;
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const struct fsl_dcu_soc_data *soc;
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};
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void fsl_dcu_fbdev_init(struct drm_device *dev);
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int fsl_dcu_drm_modeset_init(struct fsl_dcu_drm_device *fsl_dev);
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#endif /* __FSL_DCU_DRM_DRV_H__ */
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