diff options
Diffstat (limited to 'drivers/gpu/drm/gma500/tc35876x-dsi-lvds.c')
| -rw-r--r-- | drivers/gpu/drm/gma500/tc35876x-dsi-lvds.c | 805 |
1 files changed, 0 insertions, 805 deletions
diff --git a/drivers/gpu/drm/gma500/tc35876x-dsi-lvds.c b/drivers/gpu/drm/gma500/tc35876x-dsi-lvds.c deleted file mode 100644 index e5bdd99ad453..000000000000 --- a/drivers/gpu/drm/gma500/tc35876x-dsi-lvds.c +++ /dev/null @@ -1,805 +0,0 @@ -/* - * Copyright © 2011 Intel Corporation - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER - * DEALINGS IN THE SOFTWARE. - * - */ - -#include <linux/delay.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/gpio/consumer.h> - -#include <asm/intel_scu_ipc.h> - -#include "mdfld_dsi_dpi.h" -#include "mdfld_dsi_pkg_sender.h" -#include "mdfld_output.h" -#include "tc35876x-dsi-lvds.h" - -static struct i2c_client *tc35876x_client; -static struct i2c_client *cmi_lcd_i2c_client; -/* Panel GPIOs */ -static struct gpio_desc *bridge_reset; -static struct gpio_desc *bridge_bl_enable; -static struct gpio_desc *backlight_voltage; - - -#define FLD_MASK(start, end) (((1 << ((start) - (end) + 1)) - 1) << (end)) -#define FLD_VAL(val, start, end) (((val) << (end)) & FLD_MASK(start, end)) - -/* DSI D-PHY Layer Registers */ -#define D0W_DPHYCONTTX 0x0004 -#define CLW_DPHYCONTRX 0x0020 -#define D0W_DPHYCONTRX 0x0024 -#define D1W_DPHYCONTRX 0x0028 -#define D2W_DPHYCONTRX 0x002C -#define D3W_DPHYCONTRX 0x0030 -#define COM_DPHYCONTRX 0x0038 -#define CLW_CNTRL 0x0040 -#define D0W_CNTRL 0x0044 -#define D1W_CNTRL 0x0048 -#define D2W_CNTRL 0x004C -#define D3W_CNTRL 0x0050 -#define DFTMODE_CNTRL 0x0054 - -/* DSI PPI Layer Registers */ -#define PPI_STARTPPI 0x0104 -#define PPI_BUSYPPI 0x0108 -#define PPI_LINEINITCNT 0x0110 -#define PPI_LPTXTIMECNT 0x0114 -#define PPI_LANEENABLE 0x0134 -#define PPI_TX_RX_TA 0x013C -#define PPI_CLS_ATMR 0x0140 -#define PPI_D0S_ATMR 0x0144 -#define PPI_D1S_ATMR 0x0148 -#define PPI_D2S_ATMR 0x014C -#define PPI_D3S_ATMR 0x0150 -#define PPI_D0S_CLRSIPOCOUNT 0x0164 -#define PPI_D1S_CLRSIPOCOUNT 0x0168 -#define PPI_D2S_CLRSIPOCOUNT 0x016C -#define PPI_D3S_CLRSIPOCOUNT 0x0170 -#define CLS_PRE 0x0180 -#define D0S_PRE 0x0184 -#define D1S_PRE 0x0188 -#define D2S_PRE 0x018C -#define D3S_PRE 0x0190 -#define CLS_PREP 0x01A0 -#define D0S_PREP 0x01A4 -#define D1S_PREP 0x01A8 -#define D2S_PREP 0x01AC -#define D3S_PREP 0x01B0 -#define CLS_ZERO 0x01C0 -#define D0S_ZERO 0x01C4 -#define D1S_ZERO 0x01C8 -#define D2S_ZERO 0x01CC -#define D3S_ZERO 0x01D0 -#define PPI_CLRFLG 0x01E0 -#define PPI_CLRSIPO 0x01E4 -#define HSTIMEOUT 0x01F0 -#define HSTIMEOUTENABLE 0x01F4 - -/* DSI Protocol Layer Registers */ -#define DSI_STARTDSI 0x0204 -#define DSI_BUSYDSI 0x0208 -#define DSI_LANEENABLE 0x0210 -#define DSI_LANESTATUS0 0x0214 -#define DSI_LANESTATUS1 0x0218 -#define DSI_INTSTATUS 0x0220 -#define DSI_INTMASK 0x0224 -#define DSI_INTCLR 0x0228 -#define DSI_LPTXTO 0x0230 - -/* DSI General Registers */ -#define DSIERRCNT 0x0300 - -/* DSI Application Layer Registers */ -#define APLCTRL 0x0400 -#define RDPKTLN 0x0404 - -/* Video Path Registers */ -#define VPCTRL 0x0450 -#define HTIM1 0x0454 -#define HTIM2 0x0458 -#define VTIM1 0x045C -#define VTIM2 0x0460 -#define VFUEN 0x0464 - -/* LVDS Registers */ -#define LVMX0003 0x0480 -#define LVMX0407 0x0484 -#define LVMX0811 0x0488 -#define LVMX1215 0x048C -#define LVMX1619 0x0490 -#define LVMX2023 0x0494 -#define LVMX2427 0x0498 -#define LVCFG 0x049C -#define LVPHY0 0x04A0 -#define LVPHY1 0x04A4 - -/* System Registers */ -#define SYSSTAT 0x0500 -#define SYSRST 0x0504 - -/* GPIO Registers */ -/*#define GPIOC 0x0520*/ -#define GPIOO 0x0524 -#define GPIOI 0x0528 - -/* I2C Registers */ -#define I2CTIMCTRL 0x0540 -#define I2CMADDR 0x0544 -#define WDATAQ 0x0548 -#define RDATAQ 0x054C - -/* Chip/Rev Registers */ -#define IDREG 0x0580 - -/* Debug Registers */ -#define DEBUG00 0x05A0 -#define DEBUG01 0x05A4 - -/* Panel CABC registers */ -#define PANEL_PWM_CONTROL 0x90 -#define PANEL_FREQ_DIVIDER_HI 0x91 -#define PANEL_FREQ_DIVIDER_LO 0x92 -#define PANEL_DUTY_CONTROL 0x93 -#define PANEL_MODIFY_RGB 0x94 -#define PANEL_FRAMERATE_CONTROL 0x96 -#define PANEL_PWM_MIN 0x97 -#define PANEL_PWM_REF 0x98 -#define PANEL_PWM_MAX 0x99 -#define PANEL_ALLOW_DISTORT 0x9A -#define PANEL_BYPASS_PWMI 0x9B - -/* Panel color management registers */ -#define PANEL_CM_ENABLE 0x700 -#define PANEL_CM_HUE 0x701 -#define PANEL_CM_SATURATION 0x702 -#define PANEL_CM_INTENSITY 0x703 -#define PANEL_CM_BRIGHTNESS 0x704 -#define PANEL_CM_CE_ENABLE 0x705 -#define PANEL_CM_PEAK_EN 0x710 -#define PANEL_CM_GAIN 0x711 -#define PANEL_CM_HUETABLE_START 0x730 -#define PANEL_CM_HUETABLE_END 0x747 /* inclusive */ - -/* Input muxing for registers LVMX0003...LVMX2427 */ -enum { - INPUT_R0, /* 0 */ - INPUT_R1, - INPUT_R2, - INPUT_R3, - INPUT_R4, - INPUT_R5, - INPUT_R6, - INPUT_R7, - INPUT_G0, /* 8 */ - INPUT_G1, - INPUT_G2, - INPUT_G3, - INPUT_G4, - INPUT_G5, - INPUT_G6, - INPUT_G7, - INPUT_B0, /* 16 */ - INPUT_B1, - INPUT_B2, - INPUT_B3, - INPUT_B4, - INPUT_B5, - INPUT_B6, - INPUT_B7, - INPUT_HSYNC, /* 24 */ - INPUT_VSYNC, - INPUT_DE, - LOGIC_0, - /* 28...31 undefined */ -}; - -#define INPUT_MUX(lvmx03, lvmx02, lvmx01, lvmx00) \ - (FLD_VAL(lvmx03, 29, 24) | FLD_VAL(lvmx02, 20, 16) | \ - FLD_VAL(lvmx01, 12, 8) | FLD_VAL(lvmx00, 4, 0)) - -/** - * tc35876x_regw - Write DSI-LVDS bridge register using I2C - * @client: struct i2c_client to use - * @reg: register address - * @value: value to write - * - * Returns 0 on success, or a negative error value. - */ -static int tc35876x_regw(struct i2c_client *client, u16 reg, u32 value) -{ - int r; - u8 tx_data[] = { - /* NOTE: Register address big-endian, data little-endian. */ - (reg >> 8) & 0xff, - reg & 0xff, - value & 0xff, - (value >> 8) & 0xff, - (value >> 16) & 0xff, - (value >> 24) & 0xff, - }; - struct i2c_msg msgs[] = { - { - .addr = client->addr, - .flags = 0, - .buf = tx_data, - .len = ARRAY_SIZE(tx_data), - }, - }; - - r = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs)); - if (r < 0) { - dev_err(&client->dev, "%s: reg 0x%04x val 0x%08x error %d\n", - __func__, reg, value, r); - return r; - } - - if (r < ARRAY_SIZE(msgs)) { - dev_err(&client->dev, "%s: reg 0x%04x val 0x%08x msgs %d\n", - __func__, reg, value, r); - return -EAGAIN; - } - - dev_dbg(&client->dev, "%s: reg 0x%04x val 0x%08x\n", - __func__, reg, value); - - return 0; -} - -/** - * tc35876x_regr - Read DSI-LVDS bridge register using I2C - * @client: struct i2c_client to use - * @reg: register address - * @value: pointer for storing the value - * - * Returns 0 on success, or a negative error value. - */ -static int tc35876x_regr(struct i2c_client *client, u16 reg, u32 *value) -{ - int r; - u8 tx_data[] = { - (reg >> 8) & 0xff, - reg & 0xff, - }; - u8 rx_data[4]; - struct i2c_msg msgs[] = { - { - .addr = client->addr, - .flags = 0, - .buf = tx_data, - .len = ARRAY_SIZE(tx_data), - }, - { - .addr = client->addr, - .flags = I2C_M_RD, - .buf = rx_data, - .len = ARRAY_SIZE(rx_data), - }, - }; - - r = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs)); - if (r < 0) { - dev_err(&client->dev, "%s: reg 0x%04x error %d\n", __func__, - reg, r); - return r; - } - - if (r < ARRAY_SIZE(msgs)) { - dev_err(&client->dev, "%s: reg 0x%04x msgs %d\n", __func__, - reg, r); - return -EAGAIN; - } - - *value = rx_data[0] << 24 | rx_data[1] << 16 | - rx_data[2] << 8 | rx_data[3]; - - dev_dbg(&client->dev, "%s: reg 0x%04x value 0x%08x\n", __func__, - reg, *value); - - return 0; -} - -void tc35876x_set_bridge_reset_state(struct drm_device *dev, int state) -{ - if (WARN(!tc35876x_client, "%s called before probe", __func__)) - return; - - dev_dbg(&tc35876x_client->dev, "%s: state %d\n", __func__, state); - - if (!bridge_reset) - return; - - if (state) { - gpiod_set_value_cansleep(bridge_reset, 0); - mdelay(10); - } else { - /* Pull MIPI Bridge reset pin to Low */ - gpiod_set_value_cansleep(bridge_reset, 0); - mdelay(20); - /* Pull MIPI Bridge reset pin to High */ - gpiod_set_value_cansleep(bridge_reset, 1); - mdelay(40); - } -} - -void tc35876x_configure_lvds_bridge(struct drm_device *dev) -{ - struct i2c_client *i2c = tc35876x_client; - u32 ppi_lptxtimecnt; - u32 txtagocnt; - u32 txtasurecnt; - u32 id; - - if (WARN(!tc35876x_client, "%s called before probe", __func__)) - return; - - dev_dbg(&tc35876x_client->dev, "%s\n", __func__); - - if (!tc35876x_regr(i2c, IDREG, &id)) - dev_info(&tc35876x_client->dev, "tc35876x ID 0x%08x\n", id); - else - dev_err(&tc35876x_client->dev, "Cannot read ID\n"); - - ppi_lptxtimecnt = 4; - txtagocnt = (5 * ppi_lptxtimecnt - 3) / 4; - txtasurecnt = 3 * ppi_lptxtimecnt / 2; - tc35876x_regw(i2c, PPI_TX_RX_TA, FLD_VAL(txtagocnt, 26, 16) | - FLD_VAL(txtasurecnt, 10, 0)); - tc35876x_regw(i2c, PPI_LPTXTIMECNT, FLD_VAL(ppi_lptxtimecnt, 10, 0)); - - tc35876x_regw(i2c, PPI_D0S_CLRSIPOCOUNT, FLD_VAL(1, 5, 0)); - tc35876x_regw(i2c, PPI_D1S_CLRSIPOCOUNT, FLD_VAL(1, 5, 0)); - tc35876x_regw(i2c, PPI_D2S_CLRSIPOCOUNT, FLD_VAL(1, 5, 0)); - tc35876x_regw(i2c, PPI_D3S_CLRSIPOCOUNT, FLD_VAL(1, 5, 0)); - - /* Enabling MIPI & PPI lanes, Enable 4 lanes */ - tc35876x_regw(i2c, PPI_LANEENABLE, - BIT(4) | BIT(3) | BIT(2) | BIT(1) | BIT(0)); - tc35876x_regw(i2c, DSI_LANEENABLE, - BIT(4) | BIT(3) | BIT(2) | BIT(1) | BIT(0)); - tc35876x_regw(i2c, PPI_STARTPPI, BIT(0)); - tc35876x_regw(i2c, DSI_STARTDSI, BIT(0)); - - /* Setting LVDS output frequency */ - tc35876x_regw(i2c, LVPHY0, FLD_VAL(1, 20, 16) | - FLD_VAL(2, 15, 14) | FLD_VAL(6, 4, 0)); /* 0x00048006 */ - - /* Setting video panel control register,0x00000120 VTGen=ON ?!?!? */ - tc35876x_regw(i2c, VPCTRL, BIT(8) | BIT(5)); - - /* Horizontal back porch and horizontal pulse width. 0x00280028 */ - tc35876x_regw(i2c, HTIM1, FLD_VAL(40, 24, 16) | FLD_VAL(40, 8, 0)); - - /* Horizontal front porch and horizontal active video size. 0x00500500*/ - tc35876x_regw(i2c, HTIM2, FLD_VAL(80, 24, 16) | FLD_VAL(1280, 10, 0)); - - /* Vertical back porch and vertical sync pulse width. 0x000e000a */ - tc35876x_regw(i2c, VTIM1, FLD_VAL(14, 23, 16) | FLD_VAL(10, 7, 0)); - - /* Vertical front porch and vertical display size. 0x000e0320 */ - tc35876x_regw(i2c, VTIM2, FLD_VAL(14, 23, 16) | FLD_VAL(800, 10, 0)); - - /* Set above HTIM1, HTIM2, VTIM1, and VTIM2 at next VSYNC. */ - tc35876x_regw(i2c, VFUEN, BIT(0)); - - /* Soft reset LCD controller. */ - tc35876x_regw(i2c, SYSRST, BIT(2)); - - /* LVDS-TX input muxing */ - tc35876x_regw(i2c, LVMX0003, - INPUT_MUX(INPUT_R5, INPUT_R4, INPUT_R3, INPUT_R2)); - tc35876x_regw(i2c, LVMX0407, - INPUT_MUX(INPUT_G2, INPUT_R7, INPUT_R1, INPUT_R6)); - tc35876x_regw(i2c, LVMX0811, - INPUT_MUX(INPUT_G1, INPUT_G0, INPUT_G4, INPUT_G3)); - tc35876x_regw(i2c, LVMX1215, - INPUT_MUX(INPUT_B2, INPUT_G7, INPUT_G6, INPUT_G5)); - tc35876x_regw(i2c, LVMX1619, - INPUT_MUX(INPUT_B4, INPUT_B3, INPUT_B1, INPUT_B0)); - tc35876x_regw(i2c, LVMX2023, - INPUT_MUX(LOGIC_0, INPUT_B7, INPUT_B6, INPUT_B5)); - tc35876x_regw(i2c, LVMX2427, - INPUT_MUX(INPUT_R0, INPUT_DE, INPUT_VSYNC, INPUT_HSYNC)); - - /* Enable LVDS transmitter. */ - tc35876x_regw(i2c, LVCFG, BIT(0)); - - /* Clear notifications. Don't write reserved bits. Was write 0xffffffff - * to 0x0288, must be in error?! */ - tc35876x_regw(i2c, DSI_INTCLR, FLD_MASK(31, 30) | FLD_MASK(22, 0)); -} - -#define GPIOPWMCTRL 0x38F -#define PWM0CLKDIV0 0x62 /* low byte */ -#define PWM0CLKDIV1 0x61 /* high byte */ - -#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) -{ - if (WARN(!tc35876x_client, "%s called before probe", __func__)) - return; - - dev_dbg(&tc35876x_client->dev, "%s\n", __func__); - - if (bridge_bl_enable) - gpiod_set_value_cansleep(bridge_bl_enable, 0); - - if (backlight_voltage) - gpiod_set_value_cansleep(backlight_voltage, 0); -} - -void tc35876x_toshiba_bridge_panel_on(struct drm_device *dev) -{ - 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__); - - if (backlight_voltage) { - gpiod_set_value_cansleep(backlight_voltage, 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 (bridge_bl_enable) - gpiod_set_value_cansleep(bridge_bl_enable, 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) -{ - 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; - } - - bridge_reset = devm_gpiod_get_optional(&client->dev, "bridge-reset", GPIOD_OUT_LOW); - if (IS_ERR(bridge_reset)) - return PTR_ERR(bridge_reset); - if (bridge_reset) - gpiod_set_consumer_name(bridge_reset, "tc35876x bridge reset"); - - bridge_bl_enable = devm_gpiod_get_optional(&client->dev, "bl-en", GPIOD_OUT_LOW); - if (IS_ERR(bridge_bl_enable)) - return PTR_ERR(bridge_bl_enable); - if (bridge_bl_enable) - gpiod_set_consumer_name(bridge_bl_enable, "tc35876x panel bl en"); - - backlight_voltage = devm_gpiod_get_optional(&client->dev, "vadd", GPIOD_OUT_LOW); - if (IS_ERR(backlight_voltage)) - return PTR_ERR(backlight_voltage); - if (backlight_voltage) - gpiod_set_consumer_name(backlight_voltage, "tc35876x panel vadd"); - - tc35876x_client = client; - - return 0; -} - -static int tc35876x_bridge_remove(struct i2c_client *client) -{ - dev_dbg(&client->dev, "%s\n", __func__); - - 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_client_device(adapter, &info); - if (IS_ERR(client)) { - pr_err("%s: creating I2C device failed\n", __func__); - i2c_put_adapter(adapter); - return PTR_ERR(client); - } - - 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, -}; - -const struct panel_funcs mdfld_tc35876x_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); -} |