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![Greg Kroah-Hartman](/assets/img/avatar_default.png)
CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: David Airlie <airlied@linux.ie> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
829 lines
22 KiB
C
829 lines
22 KiB
C
/*
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* Copyright © 2011 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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*/
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#include "mdfld_dsi_dpi.h"
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#include "mdfld_output.h"
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#include "mdfld_dsi_pkg_sender.h"
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#include "tc35876x-dsi-lvds.h"
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#include <linux/i2c/tc35876x.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <asm/intel_scu_ipc.h>
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static struct i2c_client *tc35876x_client;
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static struct i2c_client *cmi_lcd_i2c_client;
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#define FLD_MASK(start, end) (((1 << ((start) - (end) + 1)) - 1) << (end))
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#define FLD_VAL(val, start, end) (((val) << (end)) & FLD_MASK(start, end))
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/* DSI D-PHY Layer Registers */
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#define D0W_DPHYCONTTX 0x0004
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#define CLW_DPHYCONTRX 0x0020
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#define D0W_DPHYCONTRX 0x0024
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#define D1W_DPHYCONTRX 0x0028
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#define D2W_DPHYCONTRX 0x002C
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#define D3W_DPHYCONTRX 0x0030
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#define COM_DPHYCONTRX 0x0038
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#define CLW_CNTRL 0x0040
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#define D0W_CNTRL 0x0044
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#define D1W_CNTRL 0x0048
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#define D2W_CNTRL 0x004C
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#define D3W_CNTRL 0x0050
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#define DFTMODE_CNTRL 0x0054
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/* DSI PPI Layer Registers */
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#define PPI_STARTPPI 0x0104
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#define PPI_BUSYPPI 0x0108
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#define PPI_LINEINITCNT 0x0110
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#define PPI_LPTXTIMECNT 0x0114
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#define PPI_LANEENABLE 0x0134
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#define PPI_TX_RX_TA 0x013C
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#define PPI_CLS_ATMR 0x0140
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#define PPI_D0S_ATMR 0x0144
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#define PPI_D1S_ATMR 0x0148
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#define PPI_D2S_ATMR 0x014C
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#define PPI_D3S_ATMR 0x0150
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#define PPI_D0S_CLRSIPOCOUNT 0x0164
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#define PPI_D1S_CLRSIPOCOUNT 0x0168
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#define PPI_D2S_CLRSIPOCOUNT 0x016C
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#define PPI_D3S_CLRSIPOCOUNT 0x0170
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#define CLS_PRE 0x0180
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#define D0S_PRE 0x0184
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#define D1S_PRE 0x0188
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#define D2S_PRE 0x018C
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#define D3S_PRE 0x0190
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#define CLS_PREP 0x01A0
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#define D0S_PREP 0x01A4
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#define D1S_PREP 0x01A8
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#define D2S_PREP 0x01AC
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#define D3S_PREP 0x01B0
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#define CLS_ZERO 0x01C0
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#define D0S_ZERO 0x01C4
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#define D1S_ZERO 0x01C8
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#define D2S_ZERO 0x01CC
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#define D3S_ZERO 0x01D0
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#define PPI_CLRFLG 0x01E0
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#define PPI_CLRSIPO 0x01E4
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#define HSTIMEOUT 0x01F0
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#define HSTIMEOUTENABLE 0x01F4
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/* DSI Protocol Layer Registers */
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#define DSI_STARTDSI 0x0204
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#define DSI_BUSYDSI 0x0208
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#define DSI_LANEENABLE 0x0210
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#define DSI_LANESTATUS0 0x0214
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#define DSI_LANESTATUS1 0x0218
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#define DSI_INTSTATUS 0x0220
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#define DSI_INTMASK 0x0224
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#define DSI_INTCLR 0x0228
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#define DSI_LPTXTO 0x0230
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/* DSI General Registers */
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#define DSIERRCNT 0x0300
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/* DSI Application Layer Registers */
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#define APLCTRL 0x0400
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#define RDPKTLN 0x0404
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/* Video Path Registers */
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#define VPCTRL 0x0450
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#define HTIM1 0x0454
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#define HTIM2 0x0458
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#define VTIM1 0x045C
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#define VTIM2 0x0460
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#define VFUEN 0x0464
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/* LVDS Registers */
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#define LVMX0003 0x0480
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#define LVMX0407 0x0484
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#define LVMX0811 0x0488
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#define LVMX1215 0x048C
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#define LVMX1619 0x0490
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#define LVMX2023 0x0494
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#define LVMX2427 0x0498
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#define LVCFG 0x049C
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#define LVPHY0 0x04A0
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#define LVPHY1 0x04A4
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/* System Registers */
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#define SYSSTAT 0x0500
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#define SYSRST 0x0504
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/* GPIO Registers */
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/*#define GPIOC 0x0520*/
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#define GPIOO 0x0524
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#define GPIOI 0x0528
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/* I2C Registers */
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#define I2CTIMCTRL 0x0540
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#define I2CMADDR 0x0544
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#define WDATAQ 0x0548
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#define RDATAQ 0x054C
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/* Chip/Rev Registers */
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#define IDREG 0x0580
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/* Debug Registers */
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#define DEBUG00 0x05A0
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#define DEBUG01 0x05A4
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/* Panel CABC registers */
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#define PANEL_PWM_CONTROL 0x90
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#define PANEL_FREQ_DIVIDER_HI 0x91
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#define PANEL_FREQ_DIVIDER_LO 0x92
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#define PANEL_DUTY_CONTROL 0x93
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#define PANEL_MODIFY_RGB 0x94
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#define PANEL_FRAMERATE_CONTROL 0x96
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#define PANEL_PWM_MIN 0x97
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#define PANEL_PWM_REF 0x98
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#define PANEL_PWM_MAX 0x99
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#define PANEL_ALLOW_DISTORT 0x9A
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#define PANEL_BYPASS_PWMI 0x9B
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/* Panel color management registers */
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#define PANEL_CM_ENABLE 0x700
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#define PANEL_CM_HUE 0x701
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#define PANEL_CM_SATURATION 0x702
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#define PANEL_CM_INTENSITY 0x703
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#define PANEL_CM_BRIGHTNESS 0x704
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#define PANEL_CM_CE_ENABLE 0x705
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#define PANEL_CM_PEAK_EN 0x710
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#define PANEL_CM_GAIN 0x711
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#define PANEL_CM_HUETABLE_START 0x730
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#define PANEL_CM_HUETABLE_END 0x747 /* inclusive */
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/* Input muxing for registers LVMX0003...LVMX2427 */
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enum {
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INPUT_R0, /* 0 */
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INPUT_R1,
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INPUT_R2,
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INPUT_R3,
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INPUT_R4,
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INPUT_R5,
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INPUT_R6,
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INPUT_R7,
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INPUT_G0, /* 8 */
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INPUT_G1,
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INPUT_G2,
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INPUT_G3,
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INPUT_G4,
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INPUT_G5,
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INPUT_G6,
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INPUT_G7,
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INPUT_B0, /* 16 */
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INPUT_B1,
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INPUT_B2,
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INPUT_B3,
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INPUT_B4,
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INPUT_B5,
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INPUT_B6,
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INPUT_B7,
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INPUT_HSYNC, /* 24 */
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INPUT_VSYNC,
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INPUT_DE,
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LOGIC_0,
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/* 28...31 undefined */
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};
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#define INPUT_MUX(lvmx03, lvmx02, lvmx01, lvmx00) \
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(FLD_VAL(lvmx03, 29, 24) | FLD_VAL(lvmx02, 20, 16) | \
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FLD_VAL(lvmx01, 12, 8) | FLD_VAL(lvmx00, 4, 0))
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/**
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* tc35876x_regw - Write DSI-LVDS bridge register using I2C
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* @client: struct i2c_client to use
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* @reg: register address
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* @value: value to write
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*
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* Returns 0 on success, or a negative error value.
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*/
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static int tc35876x_regw(struct i2c_client *client, u16 reg, u32 value)
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{
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int r;
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u8 tx_data[] = {
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/* NOTE: Register address big-endian, data little-endian. */
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(reg >> 8) & 0xff,
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reg & 0xff,
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value & 0xff,
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(value >> 8) & 0xff,
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(value >> 16) & 0xff,
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(value >> 24) & 0xff,
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};
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struct i2c_msg msgs[] = {
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{
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.addr = client->addr,
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.flags = 0,
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.buf = tx_data,
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.len = ARRAY_SIZE(tx_data),
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},
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};
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r = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
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if (r < 0) {
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dev_err(&client->dev, "%s: reg 0x%04x val 0x%08x error %d\n",
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__func__, reg, value, r);
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return r;
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}
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if (r < ARRAY_SIZE(msgs)) {
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dev_err(&client->dev, "%s: reg 0x%04x val 0x%08x msgs %d\n",
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__func__, reg, value, r);
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return -EAGAIN;
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}
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dev_dbg(&client->dev, "%s: reg 0x%04x val 0x%08x\n",
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__func__, reg, value);
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return 0;
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}
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/**
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* tc35876x_regr - Read DSI-LVDS bridge register using I2C
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* @client: struct i2c_client to use
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* @reg: register address
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* @value: pointer for storing the value
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*
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* Returns 0 on success, or a negative error value.
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*/
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static int tc35876x_regr(struct i2c_client *client, u16 reg, u32 *value)
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{
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int r;
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u8 tx_data[] = {
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(reg >> 8) & 0xff,
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reg & 0xff,
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};
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u8 rx_data[4];
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struct i2c_msg msgs[] = {
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{
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.addr = client->addr,
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.flags = 0,
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.buf = tx_data,
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.len = ARRAY_SIZE(tx_data),
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},
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{
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.addr = client->addr,
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.flags = I2C_M_RD,
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.buf = rx_data,
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.len = ARRAY_SIZE(rx_data),
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},
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};
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r = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
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if (r < 0) {
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dev_err(&client->dev, "%s: reg 0x%04x error %d\n", __func__,
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reg, r);
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return r;
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}
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if (r < ARRAY_SIZE(msgs)) {
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dev_err(&client->dev, "%s: reg 0x%04x msgs %d\n", __func__,
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reg, r);
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return -EAGAIN;
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}
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*value = rx_data[0] << 24 | rx_data[1] << 16 |
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rx_data[2] << 8 | rx_data[3];
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dev_dbg(&client->dev, "%s: reg 0x%04x value 0x%08x\n", __func__,
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reg, *value);
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return 0;
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}
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void tc35876x_set_bridge_reset_state(struct drm_device *dev, int state)
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{
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struct tc35876x_platform_data *pdata;
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if (WARN(!tc35876x_client, "%s called before probe", __func__))
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return;
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dev_dbg(&tc35876x_client->dev, "%s: state %d\n", __func__, state);
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pdata = dev_get_platdata(&tc35876x_client->dev);
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if (pdata->gpio_bridge_reset == -1)
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return;
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if (state) {
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gpio_set_value_cansleep(pdata->gpio_bridge_reset, 0);
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mdelay(10);
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} else {
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/* Pull MIPI Bridge reset pin to Low */
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gpio_set_value_cansleep(pdata->gpio_bridge_reset, 0);
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mdelay(20);
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/* Pull MIPI Bridge reset pin to High */
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gpio_set_value_cansleep(pdata->gpio_bridge_reset, 1);
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mdelay(40);
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}
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}
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void tc35876x_configure_lvds_bridge(struct drm_device *dev)
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{
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struct i2c_client *i2c = tc35876x_client;
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u32 ppi_lptxtimecnt;
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u32 txtagocnt;
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u32 txtasurecnt;
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u32 id;
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if (WARN(!tc35876x_client, "%s called before probe", __func__))
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return;
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dev_dbg(&tc35876x_client->dev, "%s\n", __func__);
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if (!tc35876x_regr(i2c, IDREG, &id))
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dev_info(&tc35876x_client->dev, "tc35876x ID 0x%08x\n", id);
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else
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dev_err(&tc35876x_client->dev, "Cannot read ID\n");
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ppi_lptxtimecnt = 4;
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txtagocnt = (5 * ppi_lptxtimecnt - 3) / 4;
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txtasurecnt = 3 * ppi_lptxtimecnt / 2;
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tc35876x_regw(i2c, PPI_TX_RX_TA, FLD_VAL(txtagocnt, 26, 16) |
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FLD_VAL(txtasurecnt, 10, 0));
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tc35876x_regw(i2c, PPI_LPTXTIMECNT, FLD_VAL(ppi_lptxtimecnt, 10, 0));
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tc35876x_regw(i2c, PPI_D0S_CLRSIPOCOUNT, FLD_VAL(1, 5, 0));
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tc35876x_regw(i2c, PPI_D1S_CLRSIPOCOUNT, FLD_VAL(1, 5, 0));
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tc35876x_regw(i2c, PPI_D2S_CLRSIPOCOUNT, FLD_VAL(1, 5, 0));
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tc35876x_regw(i2c, PPI_D3S_CLRSIPOCOUNT, FLD_VAL(1, 5, 0));
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/* Enabling MIPI & PPI lanes, Enable 4 lanes */
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tc35876x_regw(i2c, PPI_LANEENABLE,
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BIT(4) | BIT(3) | BIT(2) | BIT(1) | BIT(0));
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tc35876x_regw(i2c, DSI_LANEENABLE,
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BIT(4) | BIT(3) | BIT(2) | BIT(1) | BIT(0));
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tc35876x_regw(i2c, PPI_STARTPPI, BIT(0));
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tc35876x_regw(i2c, DSI_STARTDSI, BIT(0));
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/* Setting LVDS output frequency */
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tc35876x_regw(i2c, LVPHY0, FLD_VAL(1, 20, 16) |
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FLD_VAL(2, 15, 14) | FLD_VAL(6, 4, 0)); /* 0x00048006 */
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/* Setting video panel control register,0x00000120 VTGen=ON ?!?!? */
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tc35876x_regw(i2c, VPCTRL, BIT(8) | BIT(5));
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/* Horizontal back porch and horizontal pulse width. 0x00280028 */
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tc35876x_regw(i2c, HTIM1, FLD_VAL(40, 24, 16) | FLD_VAL(40, 8, 0));
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/* Horizontal front porch and horizontal active video size. 0x00500500*/
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tc35876x_regw(i2c, HTIM2, FLD_VAL(80, 24, 16) | FLD_VAL(1280, 10, 0));
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/* Vertical back porch and vertical sync pulse width. 0x000e000a */
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tc35876x_regw(i2c, VTIM1, FLD_VAL(14, 23, 16) | FLD_VAL(10, 7, 0));
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/* Vertical front porch and vertical display size. 0x000e0320 */
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tc35876x_regw(i2c, VTIM2, FLD_VAL(14, 23, 16) | FLD_VAL(800, 10, 0));
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/* Set above HTIM1, HTIM2, VTIM1, and VTIM2 at next VSYNC. */
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tc35876x_regw(i2c, VFUEN, BIT(0));
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/* Soft reset LCD controller. */
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tc35876x_regw(i2c, SYSRST, BIT(2));
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/* LVDS-TX input muxing */
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tc35876x_regw(i2c, LVMX0003,
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INPUT_MUX(INPUT_R5, INPUT_R4, INPUT_R3, INPUT_R2));
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tc35876x_regw(i2c, LVMX0407,
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INPUT_MUX(INPUT_G2, INPUT_R7, INPUT_R1, INPUT_R6));
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tc35876x_regw(i2c, LVMX0811,
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INPUT_MUX(INPUT_G1, INPUT_G0, INPUT_G4, INPUT_G3));
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tc35876x_regw(i2c, LVMX1215,
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INPUT_MUX(INPUT_B2, INPUT_G7, INPUT_G6, INPUT_G5));
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tc35876x_regw(i2c, LVMX1619,
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INPUT_MUX(INPUT_B4, INPUT_B3, INPUT_B1, INPUT_B0));
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tc35876x_regw(i2c, LVMX2023,
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INPUT_MUX(LOGIC_0, INPUT_B7, INPUT_B6, INPUT_B5));
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tc35876x_regw(i2c, LVMX2427,
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INPUT_MUX(INPUT_R0, INPUT_DE, INPUT_VSYNC, INPUT_HSYNC));
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/* Enable LVDS transmitter. */
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tc35876x_regw(i2c, LVCFG, BIT(0));
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/* Clear notifications. Don't write reserved bits. Was write 0xffffffff
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* to 0x0288, must be in error?! */
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tc35876x_regw(i2c, DSI_INTCLR, FLD_MASK(31, 30) | FLD_MASK(22, 0));
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}
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#define GPIOPWMCTRL 0x38F
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#define PWM0CLKDIV0 0x62 /* low byte */
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#define PWM0CLKDIV1 0x61 /* high byte */
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#define SYSTEMCLK 19200000UL /* 19.2 MHz */
|
|
#define PWM_FREQUENCY 9600 /* Hz */
|
|
|
|
/* f = baseclk / (clkdiv + 1) => clkdiv = (baseclk - f) / f */
|
|
static inline u16 calc_clkdiv(unsigned long baseclk, unsigned int f)
|
|
{
|
|
return (baseclk - f) / f;
|
|
}
|
|
|
|
static void tc35876x_brightness_init(struct drm_device *dev)
|
|
{
|
|
int ret;
|
|
u8 pwmctrl;
|
|
u16 clkdiv;
|
|
|
|
/* Make sure the PWM reference is the 19.2 MHz system clock. Read first
|
|
* instead of setting directly to catch potential conflicts between PWM
|
|
* users. */
|
|
ret = intel_scu_ipc_ioread8(GPIOPWMCTRL, &pwmctrl);
|
|
if (ret || pwmctrl != 0x01) {
|
|
if (ret)
|
|
dev_err(&dev->pdev->dev, "GPIOPWMCTRL read failed\n");
|
|
else
|
|
dev_warn(&dev->pdev->dev, "GPIOPWMCTRL was not set to system clock (pwmctrl = 0x%02x)\n", pwmctrl);
|
|
|
|
ret = intel_scu_ipc_iowrite8(GPIOPWMCTRL, 0x01);
|
|
if (ret)
|
|
dev_err(&dev->pdev->dev, "GPIOPWMCTRL set failed\n");
|
|
}
|
|
|
|
clkdiv = calc_clkdiv(SYSTEMCLK, PWM_FREQUENCY);
|
|
|
|
ret = intel_scu_ipc_iowrite8(PWM0CLKDIV1, (clkdiv >> 8) & 0xff);
|
|
if (!ret)
|
|
ret = intel_scu_ipc_iowrite8(PWM0CLKDIV0, clkdiv & 0xff);
|
|
|
|
if (ret)
|
|
dev_err(&dev->pdev->dev, "PWM0CLKDIV set failed\n");
|
|
else
|
|
dev_dbg(&dev->pdev->dev, "PWM0CLKDIV set to 0x%04x (%d Hz)\n",
|
|
clkdiv, PWM_FREQUENCY);
|
|
}
|
|
|
|
#define PWM0DUTYCYCLE 0x67
|
|
|
|
void tc35876x_brightness_control(struct drm_device *dev, int level)
|
|
{
|
|
int ret;
|
|
u8 duty_val;
|
|
u8 panel_duty_val;
|
|
|
|
level = clamp(level, 0, MDFLD_DSI_BRIGHTNESS_MAX_LEVEL);
|
|
|
|
/* PWM duty cycle 0x00...0x63 corresponds to 0...99% */
|
|
duty_val = level * 0x63 / MDFLD_DSI_BRIGHTNESS_MAX_LEVEL;
|
|
|
|
/* I won't pretend to understand this formula. The panel spec is quite
|
|
* bad engrish.
|
|
*/
|
|
panel_duty_val = (2 * level - 100) * 0xA9 /
|
|
MDFLD_DSI_BRIGHTNESS_MAX_LEVEL + 0x56;
|
|
|
|
ret = intel_scu_ipc_iowrite8(PWM0DUTYCYCLE, duty_val);
|
|
if (ret)
|
|
dev_err(&tc35876x_client->dev, "%s: ipc write fail\n",
|
|
__func__);
|
|
|
|
if (cmi_lcd_i2c_client) {
|
|
ret = i2c_smbus_write_byte_data(cmi_lcd_i2c_client,
|
|
PANEL_PWM_MAX, panel_duty_val);
|
|
if (ret < 0)
|
|
dev_err(&cmi_lcd_i2c_client->dev, "%s: i2c write failed\n",
|
|
__func__);
|
|
}
|
|
}
|
|
|
|
void tc35876x_toshiba_bridge_panel_off(struct drm_device *dev)
|
|
{
|
|
struct tc35876x_platform_data *pdata;
|
|
|
|
if (WARN(!tc35876x_client, "%s called before probe", __func__))
|
|
return;
|
|
|
|
dev_dbg(&tc35876x_client->dev, "%s\n", __func__);
|
|
|
|
pdata = dev_get_platdata(&tc35876x_client->dev);
|
|
|
|
if (pdata->gpio_panel_bl_en != -1)
|
|
gpio_set_value_cansleep(pdata->gpio_panel_bl_en, 0);
|
|
|
|
if (pdata->gpio_panel_vadd != -1)
|
|
gpio_set_value_cansleep(pdata->gpio_panel_vadd, 0);
|
|
}
|
|
|
|
void tc35876x_toshiba_bridge_panel_on(struct drm_device *dev)
|
|
{
|
|
struct tc35876x_platform_data *pdata;
|
|
struct drm_psb_private *dev_priv = dev->dev_private;
|
|
|
|
if (WARN(!tc35876x_client, "%s called before probe", __func__))
|
|
return;
|
|
|
|
dev_dbg(&tc35876x_client->dev, "%s\n", __func__);
|
|
|
|
pdata = dev_get_platdata(&tc35876x_client->dev);
|
|
|
|
if (pdata->gpio_panel_vadd != -1) {
|
|
gpio_set_value_cansleep(pdata->gpio_panel_vadd, 1);
|
|
msleep(260);
|
|
}
|
|
|
|
if (cmi_lcd_i2c_client) {
|
|
int ret;
|
|
dev_dbg(&cmi_lcd_i2c_client->dev, "setting TCON\n");
|
|
/* Bit 4 is average_saving. Setting it to 1, the brightness is
|
|
* referenced to the average of the frame content. 0 means
|
|
* reference to the maximum of frame contents. Bits 3:0 are
|
|
* allow_distort. When set to a nonzero value, all color values
|
|
* between 255-allow_distort*2 and 255 are mapped to the
|
|
* 255-allow_distort*2 value.
|
|
*/
|
|
ret = i2c_smbus_write_byte_data(cmi_lcd_i2c_client,
|
|
PANEL_ALLOW_DISTORT, 0x10);
|
|
if (ret < 0)
|
|
dev_err(&cmi_lcd_i2c_client->dev,
|
|
"i2c write failed (%d)\n", ret);
|
|
ret = i2c_smbus_write_byte_data(cmi_lcd_i2c_client,
|
|
PANEL_BYPASS_PWMI, 0);
|
|
if (ret < 0)
|
|
dev_err(&cmi_lcd_i2c_client->dev,
|
|
"i2c write failed (%d)\n", ret);
|
|
/* Set minimum brightness value - this is tunable */
|
|
ret = i2c_smbus_write_byte_data(cmi_lcd_i2c_client,
|
|
PANEL_PWM_MIN, 0x35);
|
|
if (ret < 0)
|
|
dev_err(&cmi_lcd_i2c_client->dev,
|
|
"i2c write failed (%d)\n", ret);
|
|
}
|
|
|
|
if (pdata->gpio_panel_bl_en != -1)
|
|
gpio_set_value_cansleep(pdata->gpio_panel_bl_en, 1);
|
|
|
|
tc35876x_brightness_control(dev, dev_priv->brightness_adjusted);
|
|
}
|
|
|
|
static struct drm_display_mode *tc35876x_get_config_mode(struct drm_device *dev)
|
|
{
|
|
struct drm_display_mode *mode;
|
|
|
|
dev_dbg(&dev->pdev->dev, "%s\n", __func__);
|
|
|
|
mode = kzalloc(sizeof(*mode), GFP_KERNEL);
|
|
if (!mode)
|
|
return NULL;
|
|
|
|
/* FIXME: do this properly. */
|
|
mode->hdisplay = 1280;
|
|
mode->vdisplay = 800;
|
|
mode->hsync_start = 1360;
|
|
mode->hsync_end = 1400;
|
|
mode->htotal = 1440;
|
|
mode->vsync_start = 814;
|
|
mode->vsync_end = 824;
|
|
mode->vtotal = 838;
|
|
mode->clock = 33324 << 1;
|
|
|
|
dev_info(&dev->pdev->dev, "hdisplay(w) = %d\n", mode->hdisplay);
|
|
dev_info(&dev->pdev->dev, "vdisplay(h) = %d\n", mode->vdisplay);
|
|
dev_info(&dev->pdev->dev, "HSS = %d\n", mode->hsync_start);
|
|
dev_info(&dev->pdev->dev, "HSE = %d\n", mode->hsync_end);
|
|
dev_info(&dev->pdev->dev, "htotal = %d\n", mode->htotal);
|
|
dev_info(&dev->pdev->dev, "VSS = %d\n", mode->vsync_start);
|
|
dev_info(&dev->pdev->dev, "VSE = %d\n", mode->vsync_end);
|
|
dev_info(&dev->pdev->dev, "vtotal = %d\n", mode->vtotal);
|
|
dev_info(&dev->pdev->dev, "clock = %d\n", mode->clock);
|
|
|
|
drm_mode_set_name(mode);
|
|
drm_mode_set_crtcinfo(mode, 0);
|
|
|
|
mode->type |= DRM_MODE_TYPE_PREFERRED;
|
|
|
|
return mode;
|
|
}
|
|
|
|
/* DV1 Active area 216.96 x 135.6 mm */
|
|
#define DV1_PANEL_WIDTH 217
|
|
#define DV1_PANEL_HEIGHT 136
|
|
|
|
static int tc35876x_get_panel_info(struct drm_device *dev, int pipe,
|
|
struct panel_info *pi)
|
|
{
|
|
if (!dev || !pi)
|
|
return -EINVAL;
|
|
|
|
pi->width_mm = DV1_PANEL_WIDTH;
|
|
pi->height_mm = DV1_PANEL_HEIGHT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tc35876x_bridge_probe(struct i2c_client *client,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
struct tc35876x_platform_data *pdata;
|
|
|
|
dev_info(&client->dev, "%s\n", __func__);
|
|
|
|
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
|
|
dev_err(&client->dev, "%s: i2c_check_functionality() failed\n",
|
|
__func__);
|
|
return -ENODEV;
|
|
}
|
|
|
|
pdata = dev_get_platdata(&client->dev);
|
|
if (!pdata) {
|
|
dev_err(&client->dev, "%s: no platform data\n", __func__);
|
|
return -ENODEV;
|
|
}
|
|
|
|
if (pdata->gpio_bridge_reset != -1) {
|
|
gpio_request(pdata->gpio_bridge_reset, "tc35876x bridge reset");
|
|
gpio_direction_output(pdata->gpio_bridge_reset, 0);
|
|
}
|
|
|
|
if (pdata->gpio_panel_bl_en != -1) {
|
|
gpio_request(pdata->gpio_panel_bl_en, "tc35876x panel bl en");
|
|
gpio_direction_output(pdata->gpio_panel_bl_en, 0);
|
|
}
|
|
|
|
if (pdata->gpio_panel_vadd != -1) {
|
|
gpio_request(pdata->gpio_panel_vadd, "tc35876x panel vadd");
|
|
gpio_direction_output(pdata->gpio_panel_vadd, 0);
|
|
}
|
|
|
|
tc35876x_client = client;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tc35876x_bridge_remove(struct i2c_client *client)
|
|
{
|
|
struct tc35876x_platform_data *pdata = dev_get_platdata(&client->dev);
|
|
|
|
dev_dbg(&client->dev, "%s\n", __func__);
|
|
|
|
if (pdata->gpio_bridge_reset != -1)
|
|
gpio_free(pdata->gpio_bridge_reset);
|
|
|
|
if (pdata->gpio_panel_bl_en != -1)
|
|
gpio_free(pdata->gpio_panel_bl_en);
|
|
|
|
if (pdata->gpio_panel_vadd != -1)
|
|
gpio_free(pdata->gpio_panel_vadd);
|
|
|
|
tc35876x_client = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct i2c_device_id tc35876x_bridge_id[] = {
|
|
{ "i2c_disp_brig", 0 },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, tc35876x_bridge_id);
|
|
|
|
static struct i2c_driver tc35876x_bridge_i2c_driver = {
|
|
.driver = {
|
|
.name = "i2c_disp_brig",
|
|
},
|
|
.id_table = tc35876x_bridge_id,
|
|
.probe = tc35876x_bridge_probe,
|
|
.remove = tc35876x_bridge_remove,
|
|
};
|
|
|
|
/* LCD panel I2C */
|
|
static int cmi_lcd_i2c_probe(struct i2c_client *client,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
dev_info(&client->dev, "%s\n", __func__);
|
|
|
|
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
|
|
dev_err(&client->dev, "%s: i2c_check_functionality() failed\n",
|
|
__func__);
|
|
return -ENODEV;
|
|
}
|
|
|
|
cmi_lcd_i2c_client = client;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int cmi_lcd_i2c_remove(struct i2c_client *client)
|
|
{
|
|
dev_dbg(&client->dev, "%s\n", __func__);
|
|
|
|
cmi_lcd_i2c_client = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct i2c_device_id cmi_lcd_i2c_id[] = {
|
|
{ "cmi-lcd", 0 },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, cmi_lcd_i2c_id);
|
|
|
|
static struct i2c_driver cmi_lcd_i2c_driver = {
|
|
.driver = {
|
|
.name = "cmi-lcd",
|
|
},
|
|
.id_table = cmi_lcd_i2c_id,
|
|
.probe = cmi_lcd_i2c_probe,
|
|
.remove = cmi_lcd_i2c_remove,
|
|
};
|
|
|
|
/* HACK to create I2C device while it's not created by platform code */
|
|
#define CMI_LCD_I2C_ADAPTER 2
|
|
#define CMI_LCD_I2C_ADDR 0x60
|
|
|
|
static int cmi_lcd_hack_create_device(void)
|
|
{
|
|
struct i2c_adapter *adapter;
|
|
struct i2c_client *client;
|
|
struct i2c_board_info info = {
|
|
.type = "cmi-lcd",
|
|
.addr = CMI_LCD_I2C_ADDR,
|
|
};
|
|
|
|
pr_debug("%s\n", __func__);
|
|
|
|
adapter = i2c_get_adapter(CMI_LCD_I2C_ADAPTER);
|
|
if (!adapter) {
|
|
pr_err("%s: i2c_get_adapter(%d) failed\n", __func__,
|
|
CMI_LCD_I2C_ADAPTER);
|
|
return -EINVAL;
|
|
}
|
|
|
|
client = i2c_new_device(adapter, &info);
|
|
if (!client) {
|
|
pr_err("%s: i2c_new_device() failed\n", __func__);
|
|
i2c_put_adapter(adapter);
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct drm_encoder_helper_funcs tc35876x_encoder_helper_funcs = {
|
|
.dpms = mdfld_dsi_dpi_dpms,
|
|
.mode_fixup = mdfld_dsi_dpi_mode_fixup,
|
|
.prepare = mdfld_dsi_dpi_prepare,
|
|
.mode_set = mdfld_dsi_dpi_mode_set,
|
|
.commit = mdfld_dsi_dpi_commit,
|
|
};
|
|
|
|
static const struct drm_encoder_funcs tc35876x_encoder_funcs = {
|
|
.destroy = drm_encoder_cleanup,
|
|
};
|
|
|
|
const struct panel_funcs mdfld_tc35876x_funcs = {
|
|
.encoder_funcs = &tc35876x_encoder_funcs,
|
|
.encoder_helper_funcs = &tc35876x_encoder_helper_funcs,
|
|
.get_config_mode = tc35876x_get_config_mode,
|
|
.get_panel_info = tc35876x_get_panel_info,
|
|
};
|
|
|
|
void tc35876x_init(struct drm_device *dev)
|
|
{
|
|
int r;
|
|
|
|
dev_dbg(&dev->pdev->dev, "%s\n", __func__);
|
|
|
|
cmi_lcd_hack_create_device();
|
|
|
|
r = i2c_add_driver(&cmi_lcd_i2c_driver);
|
|
if (r < 0)
|
|
dev_err(&dev->pdev->dev,
|
|
"%s: i2c_add_driver() for %s failed (%d)\n",
|
|
__func__, cmi_lcd_i2c_driver.driver.name, r);
|
|
|
|
r = i2c_add_driver(&tc35876x_bridge_i2c_driver);
|
|
if (r < 0)
|
|
dev_err(&dev->pdev->dev,
|
|
"%s: i2c_add_driver() for %s failed (%d)\n",
|
|
__func__, tc35876x_bridge_i2c_driver.driver.name, r);
|
|
|
|
tc35876x_brightness_init(dev);
|
|
}
|
|
|
|
void tc35876x_exit(void)
|
|
{
|
|
pr_debug("%s\n", __func__);
|
|
|
|
i2c_del_driver(&tc35876x_bridge_i2c_driver);
|
|
|
|
if (cmi_lcd_i2c_client)
|
|
i2c_del_driver(&cmi_lcd_i2c_driver);
|
|
}
|