/* * Copyright © 2010 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. * * Authors: * Jim Liu * Jackie Li */ #include "mdfld_dsi_dbi.h" #include "mdfld_dsi_pkg_sender.h" #include "mdfld_dsi_esd.h" #include #include #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,8,0)) #include #endif #include struct h8c7_regulator_factory { bool h8c7_mmc2_on; struct regulator *regulator; }; static struct h8c7_regulator_factory h8c7_regulator_status; static u8 h8c7_exit_sleep_mode[] = {0x11}; static u8 h8c7_set_tear_on[] = {0x35, 0x00}; static u8 h8c7_set_brightness[] = {0x51, 0x00}; static u8 h8c7_turn_on_backlight[] = {0x53, 0x24}; static u8 h8c7_turn_off_backlight[] = {0x53, 0x00}; static u8 h8c7_disable_cabc[] = {0x55, 0x00}; static u8 h8c7_set_mipi_ctrl[] = {0xba, 0x12, 0x83}; static u8 h8c7_command_mode[] = {0xc2, 0x08}; static u8 h8c7_set_panel[] = {0xcc, 0x08}; static u8 h8c7_set_eq_func_ltps[] = {0xd4, 0x0c}; static u8 h8c7_set_address_mode[] = {0x36, 0x00}; static u8 h8c7_set_te_scanline[] = {0x44, 0x00, 0x00, 0x00}; static u8 h8c7_set_pixel_format[] = {0x3a, 0x77}; static u8 h8c7_mcs_protect_off[] = {0xb9, 0xff, 0x83, 0x92}; static u8 h8c7_mcs_protect_on[] = {0xb9, 0x00, 0x00, 0x00}; static u8 h8c7_set_blanking_opt_2[] = {0xc7, 0x00, 0x40}; static u8 h8c7_mcs_clumn_addr[] = {0x2a, 0x00, 0x00, 0x02, 0xcf}; static u8 h8c7_mcs_page_addr[] = {0x2b, 0x00, 0x00, 0x04, 0xff}; static u8 h8c7_ic_bias_current[] = { 0xbf, 0x05, 0xe0, 0x02, 0x00}; static u8 h8c7_set_power[] = { 0xb1, 0x7c, 0x00, 0x44, 0x94, 0x00, 0x0d, 0x0d, 0x12, 0x1f, 0x3f, 0x3f, 0x42, 0x72}; static u8 h8c7_set_power_dstb[] = { 0xb1, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; static u8 h8c7_set_disp_reg[] = { 0xb2, 0x0f, 0xc8, 0x01, 0x01, 0x06, 0x84, 0x00, 0xff, 0x01, 0x01, 0x06, 0x20}; static u8 h8c7_set_command_cyc[] = { 0xb4, 0x00, 0x00, 0x05, 0x00, 0xa0, 0x05, 0x16, 0x9d, 0x30, 0x03, 0x16, 0x00, 0x03, 0x03, 0x00, 0x1b, 0x04, 0x07, 0x07, 0x01, 0x00, 0x1a, 0x77}; static u8 h8c7_set_ltps_ctrl_output[] = { 0xd5, 0x00, 0x08, 0x08, 0x00, 0x44, 0x55, 0x66, 0x77, 0xcc, 0xcc, 0xcc, 0xcc, 0x00, 0x77, 0x66, 0x55, 0x44, 0xcc, 0xcc, 0xcc, 0xcc}; static u8 h8c7_set_video_cyc[] = { 0xd8, 0x00, 0x00, 0x05, 0x00, 0xa0, 0x05, 0x16, 0x9d, 0x30, 0x03, 0x16, 0x00, 0x03, 0x03, 0x00, 0x1b, 0x04, 0x07, 0x07, 0x01, 0x00, 0x1a, 0x77}; static u8 h8c7_gamma_r[] = { 0xe0, 0x00, 0x1f, 0x23, 0x3f, 0x3f, 0x3f, 0x33, 0x55, 0x06, 0x0e, 0x0e, 0x11, 0x14, 0x12, 0x14, 0x1d, 0x1f, 0x00, 0x1f, 0x23, 0x3f, 0x3f, 0x3f, 0x33, 0x55, 0x06, 0x0e, 0x0e, 0x11, 0x14, 0x12, 0x14, 0x1d, 0x1f}; static u8 h8c7_gamma_g[] = { 0xe1, 0x00, 0x1f, 0x23, 0x3f, 0x3f, 0x3f, 0x33, 0x55, 0x06, 0x0e, 0x0e, 0x11, 0x14, 0x12, 0x14, 0x1d, 0x1f, 0x00, 0x1f, 0x23, 0x3f, 0x3f, 0x3f, 0x33, 0x55, 0x06, 0x0e, 0x0e, 0x11, 0x14, 0x12, 0x14, 0x1d, 0x1f}; static u8 h8c7_gamma_b[] = { 0xe2, 0x00, 0x1f, 0x23, 0x3f, 0x3f, 0x3f, 0x33, 0x55, 0x06, 0x0e, 0x0e, 0x11, 0x14, 0x12, 0x14, 0x1d, 0x1f, 0x00, 0x1f, 0x23, 0x3f, 0x3f, 0x3f, 0x33, 0x55, 0x06, 0x0e, 0x0e, 0x11, 0x14, 0x12, 0x14, 0x1d, 0x1f}; static u8 h8c7_enter_set_cabc[] = { 0xc9, 0x1f, 0x00, 0x1e, 0x1e, 0x00, 0x20, 0x00, 0x01, 0xe3}; static u8 h8c7_set_stba[] = { 0xc0, 0x01, 0x94}; static u8 h8c7_set_cabc_gain[] = { 0xca, 0x40, 0x3d, 0x3a, 0x36, 0x35, 0x34, 0x2d, 0x25, 0x22}; #define MIPI_RESET_GPIO_DEFAULT 128 static int mdfld_h8c7_drv_ic_init(struct mdfld_dsi_config *dsi_config) { struct drm_device *dev = dsi_config->dev; struct mdfld_dsi_pkg_sender *sender = mdfld_dsi_get_pkg_sender(dsi_config); struct mdfld_dsi_hw_registers *regs; if (!sender) return -EINVAL; regs = &dsi_config->regs; PSB_DEBUG_ENTRY("\n"); sender->status = MDFLD_DSI_PKG_SENDER_FREE; /* swtich to 2 data lane */ REG_WRITE(regs->device_ready_reg, 0x0); udelay(1); REG_WRITE(regs->dsi_func_prg_reg, 0xA002); udelay(1); REG_WRITE(regs->device_ready_reg, 0x1); udelay(1); mdfld_dsi_send_mcs_short_hs(sender, h8c7_exit_sleep_mode[0], 0, 0, 0); if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL) return -EIO; mdelay(150); /* set password*/ mdfld_dsi_send_mcs_long_hs(sender, h8c7_mcs_protect_off, 4, 0); if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL) return -EIO; mdfld_dsi_send_mcs_long_hs(sender, h8c7_ic_bias_current, 5, 0); if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL) return -EIO; mdfld_dsi_send_mcs_long_hs(sender, h8c7_set_power, 14, 0); if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL) return -EIO; mdfld_dsi_send_mcs_long_hs(sender, h8c7_set_disp_reg, 13, 0); if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL) return -EIO; mdfld_dsi_send_mcs_long_hs(sender, h8c7_set_command_cyc, 24, 0); if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL) return -EIO; mdfld_dsi_send_mcs_long_hs(sender, h8c7_set_mipi_ctrl, sizeof(h8c7_set_mipi_ctrl), 0); if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL) return -EIO; /* switch back to 3 data lane */ mdfld_dsi_wait_for_fifos_empty(sender); REG_WRITE(regs->device_ready_reg, 0x0); udelay(1); REG_WRITE(regs->dsi_func_prg_reg, 0xA003); udelay(1); REG_WRITE(regs->device_ready_reg, 0x1); mdfld_dsi_send_mcs_long_hs(sender, h8c7_set_stba, 3, 0); if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL) return -EIO; mdfld_dsi_send_mcs_short_hs(sender, h8c7_command_mode[0], h8c7_command_mode[1], 1, 0); if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL) return -EIO; mdfld_dsi_send_mcs_long_hs(sender, h8c7_set_blanking_opt_2, sizeof(h8c7_set_blanking_opt_2), 0); if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL) return -EIO; mdfld_dsi_send_mcs_short_hs(sender, h8c7_set_panel[0], h8c7_set_panel[1], 1, 0); if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL) return -EIO; mdfld_dsi_send_mcs_short_hs(sender, h8c7_set_eq_func_ltps[0], h8c7_set_eq_func_ltps[1], 1, 0); if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL) return -EIO; mdfld_dsi_send_mcs_long_hs(sender, h8c7_set_ltps_ctrl_output, 22, 0); if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL) return -EIO; mdfld_dsi_send_mcs_long_hs(sender, h8c7_set_video_cyc, 24, 0); if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL) return -EIO; #if 0 mdfld_dsi_send_mcs_long_lp(sender, h8c7_gamma_r, 35, 0); if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL) return -EIO; mdfld_dsi_send_mcs_long_lp(sender, h8c7_gamma_g, 35, 0); if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL) return -EIO; mdfld_dsi_send_mcs_long_lp(sender, h8c7_gamma_b, 35, 0); if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL) return -EIO; #endif mdfld_dsi_send_mcs_short_hs(sender, h8c7_set_pixel_format[0], h8c7_set_pixel_format[1], 1, 0); if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL) return -EIO; mdfld_dsi_send_mcs_long_hs(sender, h8c7_mcs_clumn_addr, 5, 0); if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL) return -EIO; mdfld_dsi_send_mcs_long_hs(sender, h8c7_mcs_page_addr, 5, 0); if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL) return -EIO; mdfld_dsi_send_mcs_short_hs(sender, h8c7_set_address_mode[0], h8c7_set_address_mode[1], 1, 0); if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL) return -EIO; mdfld_dsi_send_mcs_long_hs(sender, h8c7_set_te_scanline, 4, 0); if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL) return -EIO; mdfld_dsi_send_mcs_short_hs(sender, h8c7_set_tear_on[0], h8c7_set_tear_on[1], 1, 0); if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL) return -EIO; mdfld_dsi_send_mcs_long_hs(sender, h8c7_enter_set_cabc, 10, 0); if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL) return -EIO; /* set backlight on*/ mdfld_dsi_send_mcs_short_hs(sender, h8c7_turn_on_backlight[0], h8c7_turn_on_backlight[1], 1 , 0); if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL) return -EIO; /* disalble CABC*/ mdfld_dsi_send_mcs_short_hs(sender, h8c7_disable_cabc[0], h8c7_disable_cabc[1], 1, 0); if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL) return -EIO; mdfld_dsi_send_mcs_long_hs(sender, h8c7_mcs_protect_on, 4, 0); if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL) return -EIO; mdelay(5); return 0; } static void mdfld_h8c7_dsi_controller_init(struct mdfld_dsi_config *dsi_config) { struct mdfld_dsi_hw_context *hw_ctx = &dsi_config->dsi_hw_context; struct drm_device *dev = dsi_config->dev; struct csc_setting csc = { .pipe = 0, .type = CSC_REG_SETTING, .enable_state = true, .data_len = CSC_REG_COUNT, .data.csc_reg_data = { 0xFFB0424, 0xFDF, 0x4320FF1, 0xFDC, 0xFF50FF5, 0x415} }; struct gamma_setting gamma = { .pipe = 0, .type = GAMMA_REG_SETTING, .enable_state = true, .data_len = GAMMA_10_BIT_TABLE_COUNT, .gamma_tableX100 = { 0x000000, 0x030303, 0x050505, 0x070707, 0x090909, 0x0C0C0C, 0x0E0E0E, 0x101010, 0x121212, 0x141414, 0x171717, 0x191919, 0x1B1B1B, 0x1D1D1D, 0x1F1F1F, 0x212121, 0x232323, 0x252525, 0x282828, 0x2A2A2A, 0x2C2C2C, 0x2E2E2E, 0x303030, 0x323232, 0x343434, 0x363636, 0x383838, 0x3A3A3A, 0x3C3C3C, 0x3E3E3E, 0x404040, 0x424242, 0x444444, 0x464646, 0x484848, 0x4A4A4A, 0x4C4C4C, 0x4E4E4E, 0x505050, 0x525252, 0x545454, 0x565656, 0x585858, 0x5A5A5A, 0x5C5C5C, 0x5E5E5E, 0x606060, 0x626262, 0x646464, 0x666666, 0x686868, 0x6A6A6A, 0x6C6C6C, 0x6E6E6E, 0x707070, 0x727272, 0x747474, 0x767676, 0x787878, 0x7A7A7A, 0x7C7C7C, 0x7E7E7E, 0x808080, 0x828282, 0x848484, 0x868686, 0x888888, 0x8A8A8A, 0x8C8C8C, 0x8E8E8E, 0x909090, 0x929292, 0x949494, 0x969696, 0x989898, 0x999999, 0x9B9B9B, 0x9D9D9D, 0x9F9F9F, 0xA1A1A1, 0xA3A3A3, 0xA5A5A5, 0xA7A7A7, 0xA9A9A9, 0xABABAB, 0xADADAD, 0xAFAFAF, 0xB1B1B1, 0xB3B3B3, 0xB5B5B5, 0xB6B6B6, 0xB8B8B8, 0xBABABA, 0xBCBCBC, 0xBEBEBE, 0xC0C0C0, 0xC2C2C2, 0xC4C4C4, 0xC6C6C6, 0xC8C8C8, 0xCACACA, 0xCCCCCC, 0xCECECE, 0xCFCFCF, 0xD1D1D1, 0xD3D3D3, 0xD5D5D5, 0xD7D7D7, 0xD9D9D9, 0xDBDBDB, 0xDDDDDD, 0xDFDFDF, 0xE1E1E1, 0xE3E3E3, 0xE4E4E4, 0xE6E6E6, 0xE8E8E8, 0xEAEAEA, 0xECECEC, 0xEEEEEE, 0xF0F0F0, 0xF2F2F2, 0xF4F4F4, 0xF6F6F6, 0xF7F7F7, 0xF9F9F9, 0xFBFBFB, 0xFDFDFD} }; PSB_DEBUG_ENTRY("\n"); /*reconfig lane configuration*/ dsi_config->lane_count = 3; dsi_config->lane_config = MDFLD_DSI_DATA_LANE_3_1; dsi_config->enable_gamma_csc = ENABLE_GAMMA | ENABLE_CSC; /* This is for 400 mhz. Set it to 0 for 800mhz */ hw_ctx->cck_div = 1; hw_ctx->pll_bypass_mode = 0; hw_ctx->mipi_control = 0x00; hw_ctx->intr_en = 0xffffffff; hw_ctx->hs_tx_timeout = 0xffffff; hw_ctx->lp_rx_timeout = 0xffffff; hw_ctx->turn_around_timeout = 0x1f; hw_ctx->device_reset_timer = 0xffff; hw_ctx->high_low_switch_count = 0x20; hw_ctx->init_count = 0xf0; hw_ctx->eot_disable = 0x3; hw_ctx->lp_byteclk = 0x4; hw_ctx->clk_lane_switch_time_cnt = 0x20000E; hw_ctx->hs_ls_dbi_enable = 0x0; /* HW team suggested 1390 for bandwidth setting */ hw_ctx->dbi_bw_ctrl = 1390; hw_ctx->dphy_param = 0x20124E1A; hw_ctx->dsi_func_prg = (0xa000 | dsi_config->lane_count); hw_ctx->mipi = TE_TRIGGER_GPIO_PIN; hw_ctx->mipi |= dsi_config->lane_config; if (dsi_config->enable_gamma_csc & ENABLE_CSC) { /* setting the tuned csc setting */ drm_psb_enable_color_conversion = 1; mdfld_intel_crtc_set_color_conversion(dev, &csc); } if (dsi_config->enable_gamma_csc & ENABLE_GAMMA) { /* setting the tuned gamma setting */ drm_psb_enable_gamma = 1; mdfld_intel_crtc_set_gamma(dev, &gamma); } } static struct drm_display_mode *h8c7_cmd_get_config_mode(void) { struct drm_display_mode *mode; PSB_DEBUG_ENTRY("\n"); mode = kzalloc(sizeof(*mode), GFP_KERNEL); if (!mode) return NULL; mode->htotal = 920; mode->hdisplay = 720; mode->hsync_start = 816; mode->hsync_end = 824; mode->vtotal = 1300; mode->vdisplay = 1280; mode->vsync_start = 1294; mode->vsync_end = 1296; mode->vrefresh = 60; mode->clock = mode->vrefresh * mode->vtotal * mode->htotal / 1000; mode->type |= DRM_MODE_TYPE_PREFERRED; PSB_DEBUG_ENTRY("hdisplay is %d\n", mode->hdisplay); PSB_DEBUG_ENTRY("vdisplay is %d\n", mode->vdisplay); PSB_DEBUG_ENTRY("HSS is %d\n", mode->hsync_start); PSB_DEBUG_ENTRY("HSE is %d\n", mode->hsync_end); PSB_DEBUG_ENTRY("htotal is %d\n", mode->htotal); PSB_DEBUG_ENTRY("VSS is %d\n", mode->vsync_start); PSB_DEBUG_ENTRY("VSE is %d\n", mode->vsync_end); PSB_DEBUG_ENTRY("vtotal is %d\n", mode->vtotal); PSB_DEBUG_ENTRY("clock is %d\n", mode->clock); drm_mode_set_name(mode); drm_mode_set_crtcinfo(mode, 0); return mode; } static int mdfld_dsi_h8c7_cmd_power_on(struct mdfld_dsi_config *dsi_config) { struct mdfld_dsi_pkg_sender *sender = mdfld_dsi_get_pkg_sender(dsi_config); int err = 0; int enable_err, enabled = 0; PSB_DEBUG_ENTRY("\n"); if (!sender) { DRM_ERROR("Failed to get DSI packet sender\n"); return -EINVAL; } if (!IS_ERR(h8c7_regulator_status.regulator)) { if (!h8c7_regulator_status.h8c7_mmc2_on) { PSB_DEBUG_ENTRY("Before power on, regulator is %d\n", regulator_is_enabled(h8c7_regulator_status.regulator)); PSB_DEBUG_ENTRY("Begin to power on\n"); h8c7_regulator_status.h8c7_mmc2_on = true; } else { DRM_ERROR("power on several times without off\n"); } enabled = regulator_is_enabled(h8c7_regulator_status.regulator); enable_err = regulator_enable(h8c7_regulator_status.regulator); if (enable_err < 0) { regulator_put(h8c7_regulator_status.regulator); DRM_ERROR("FATAL:enable h8c7 regulator error\n"); } /* vemmc2 need 50ms delay due to stability ** If already enabled, no need to wait for this delay. ** This code isn't race proof but since in addition to ** this panel driver only touch driver is enabling this ** regulator and does it after this function has been ** finished, this code works well enough for now. */ if (!enabled) msleep(50); PSB_DEBUG_ENTRY("After power on, regulator is %d\n", regulator_is_enabled(h8c7_regulator_status.regulator)); } /*set tear on*/ err = mdfld_dsi_send_dcs(sender, set_tear_on, NULL, 0, CMD_DATA_SRC_SYSTEM_MEM, MDFLD_DSI_SEND_PACKAGE); if (err) { DRM_ERROR("faild to set_tear_on mode\n"); goto power_err; } /*turn on display*/ err = mdfld_dsi_send_dcs(sender, set_display_on, NULL, 0, CMD_DATA_SRC_SYSTEM_MEM, MDFLD_DSI_SEND_PACKAGE); if (err) { DRM_ERROR("faild to set_display_on mode\n"); goto power_err; } if (drm_psb_enable_cabc) { /* turn on cabc */ h8c7_disable_cabc[1] = 0x2; mdfld_dsi_send_mcs_long_hs(sender, h8c7_disable_cabc, sizeof(h8c7_disable_cabc), 0); mdelay(5); mdfld_dsi_send_gen_long_hs(sender, h8c7_mcs_protect_off, 4, 0); mdfld_dsi_send_mcs_long_hs(sender, h8c7_set_cabc_gain, 10, 0); mdfld_dsi_send_gen_long_hs(sender, h8c7_mcs_protect_on, 4, 0); DRM_INFO("%s enable h8c7 cabc\n", __func__); } power_err: return err; } static int mdfld_dsi_h8c7_cmd_power_off(struct mdfld_dsi_config *dsi_config) { struct mdfld_dsi_pkg_sender *sender = mdfld_dsi_get_pkg_sender(dsi_config); int err = 0; PSB_DEBUG_ENTRY("\n"); if (!sender) { DRM_ERROR("Failed to get DSI packet sender\n"); return -EINVAL; } /* turn off cabc */ h8c7_disable_cabc[1] = 0x0; mdfld_dsi_send_mcs_long_hs(sender, h8c7_disable_cabc, sizeof(h8c7_disable_cabc), 0); /*turn off backlight*/ err = mdfld_dsi_send_mcs_long_hs(sender, h8c7_turn_off_backlight, sizeof(h8c7_turn_off_backlight), 0); if (err) { DRM_ERROR("%s: failed to turn off backlight\n", __func__); goto out; } mdelay(1); /*turn off display */ err = mdfld_dsi_send_dcs(sender, set_display_off, NULL, 0, CMD_DATA_SRC_SYSTEM_MEM, MDFLD_DSI_SEND_PACKAGE); if (err) { DRM_ERROR("sent set_display_off faild\n"); goto out; } /*set tear off */ err = mdfld_dsi_send_dcs(sender, set_tear_off, NULL, 0, CMD_DATA_SRC_SYSTEM_MEM, MDFLD_DSI_SEND_PACKAGE); if (err) { DRM_ERROR("sent set_tear_off faild\n"); goto out; } /*Enter sleep mode */ err = mdfld_dsi_send_dcs(sender, enter_sleep_mode, NULL, 0, CMD_DATA_SRC_SYSTEM_MEM, MDFLD_DSI_SEND_PACKAGE); if (err) { DRM_ERROR("DCS 0x%x sent failed\n", enter_sleep_mode); goto out; } /** * MIPI spec shows it must wait 5ms * before sneding next command */ mdelay(5); /*enter deep standby mode*/ err = mdfld_dsi_send_mcs_long_hs(sender, h8c7_mcs_protect_off, 4, 0); if (err) { DRM_ERROR("Failed to turn off protection\n"); goto out; } err = mdfld_dsi_send_mcs_long_hs(sender, h8c7_set_power_dstb, 14, 0); if (err) DRM_ERROR("Failed to enter DSTB\n"); mdelay(5); mdfld_dsi_send_mcs_long_hs(sender, h8c7_mcs_protect_on, 4, 0); out: if (!IS_ERR(h8c7_regulator_status.regulator)) { if (h8c7_regulator_status.h8c7_mmc2_on) { h8c7_regulator_status.h8c7_mmc2_on = false; PSB_DEBUG_GENERAL("Begin to power off\n"); } else DRM_ERROR("power off several times without on\n"); regulator_disable(h8c7_regulator_status.regulator); PSB_DEBUG_GENERAL("After power off, regulator is %d\n", regulator_is_enabled(h8c7_regulator_status.regulator)); } return err; } static void h8c7_cmd_get_panel_info(int pipe, struct panel_info *pi) { PSB_DEBUG_ENTRY("\n"); if (pipe == 0) { pi->width_mm = PANEL_4DOT3_WIDTH; pi->height_mm = PANEL_4DOT3_HEIGHT; } } static int mdfld_dsi_h8c7_cmd_detect(struct mdfld_dsi_config *dsi_config) { int status; struct drm_device *dev = dsi_config->dev; struct mdfld_dsi_hw_registers *regs = &dsi_config->regs; u32 dpll_val, device_ready_val; int pipe = dsi_config->pipe; struct mdfld_dsi_pkg_sender *sender = mdfld_dsi_get_pkg_sender(dsi_config); PSB_DEBUG_ENTRY("\n"); if (pipe == 0) { /* * FIXME: WA to detect the panel connection status, and need to * implement detection feature with get_power_mode DSI command. */ if (!ospm_power_using_hw_begin(OSPM_DISPLAY_ISLAND, OSPM_UHB_FORCE_POWER_ON)) { DRM_ERROR("hw begin failed\n"); return -EAGAIN; } dpll_val = REG_READ(regs->dpll_reg); device_ready_val = REG_READ(regs->device_ready_reg); if ((device_ready_val & DSI_DEVICE_READY) && (dpll_val & DPLL_VCO_ENABLE)) { dsi_config->dsi_hw_context.panel_on = true; mdfld_dsi_send_gen_long_hs(sender, h8c7_mcs_protect_off, 4, 0); mdfld_dsi_send_gen_long_hs(sender, h8c7_set_disp_reg, 13, 0); mdfld_dsi_send_gen_long_hs(sender, h8c7_mcs_protect_on, 4, 0); } else { dsi_config->dsi_hw_context.panel_on = false; DRM_INFO("%s: panel is not initialized!\n", __func__); } status = MDFLD_DSI_PANEL_CONNECTED; ospm_power_using_hw_end(OSPM_DISPLAY_ISLAND); } else { DRM_INFO("%s: do NOT support dual panel\n", __func__); status = MDFLD_DSI_PANEL_DISCONNECTED; } return status; } static int mdfld_dsi_h8c7_cmd_set_brightness(struct mdfld_dsi_config *dsi_config, int level) { struct mdfld_dsi_pkg_sender *sender = mdfld_dsi_get_pkg_sender(dsi_config); int duty_val = 0; static bool b_cabc_initialized = false; if (!sender) { DRM_ERROR("Failed to get DSI packet sender\n"); return -EINVAL; } if (drm_psb_enable_cabc && !b_cabc_initialized) { h8c7_disable_cabc[1] = 0x2; mdfld_dsi_send_mcs_long_hs(sender, h8c7_disable_cabc, sizeof(h8c7_disable_cabc), 0); mdelay(5); mdfld_dsi_send_gen_long_hs(sender, h8c7_mcs_protect_off, 4, 0); mdfld_dsi_send_mcs_long_hs(sender, h8c7_set_cabc_gain, 10, 0); mdfld_dsi_send_gen_long_hs(sender, h8c7_mcs_protect_on, 4, 0); b_cabc_initialized = true; } duty_val = (255 * level) / 100; h8c7_set_brightness[1] = duty_val; mdfld_dsi_send_mcs_short_hs(sender, h8c7_set_brightness[0], h8c7_set_brightness[1], 1, 0); return 0; } static int mdfld_dsi_h8c7_cmd_panel_reset(struct mdfld_dsi_config *dsi_config) { static int mipi_reset_gpio; int ret = 0; PSB_DEBUG_ENTRY("\n"); if (mipi_reset_gpio == 0) { ret = get_gpio_by_name("mipi-reset"); if (ret < 0) { DRM_ERROR("Faild to get panel reset gpio, " \ "use default reset pin\n"); ret = 128; } mipi_reset_gpio = ret; ret = gpio_request(mipi_reset_gpio, "mipi_display"); if (ret) { DRM_ERROR("Faild to request panel reset gpio\n"); return -EINVAL; } gpio_direction_output(mipi_reset_gpio, 0); } gpio_set_value_cansleep(mipi_reset_gpio, 0); mdelay(11); gpio_set_value_cansleep(mipi_reset_gpio, 1); mdelay(5); return 0; } void h8c7_cmd_init(struct drm_device *dev, struct panel_funcs *p_funcs) { int ena_err; if (!dev || !p_funcs) { DRM_ERROR("Invalid parameters\n"); return; } PSB_DEBUG_ENTRY("\n"); p_funcs->get_config_mode = h8c7_cmd_get_config_mode; p_funcs->get_panel_info = h8c7_cmd_get_panel_info; p_funcs->reset = mdfld_dsi_h8c7_cmd_panel_reset; p_funcs->drv_ic_init = mdfld_h8c7_drv_ic_init; p_funcs->dsi_controller_init = mdfld_h8c7_dsi_controller_init; p_funcs->detect = mdfld_dsi_h8c7_cmd_detect; p_funcs->power_on = mdfld_dsi_h8c7_cmd_power_on; p_funcs->power_off = mdfld_dsi_h8c7_cmd_power_off; p_funcs->set_brightness = mdfld_dsi_h8c7_cmd_set_brightness; /* Please check the file pmic_avp.c for the correct regulator name */ h8c7_regulator_status.regulator = regulator_get(NULL, "vemmc2"); if (IS_ERR(h8c7_regulator_status.regulator)) { DRM_ERROR("H8C7 device failed to get mmc regulator\n"); return ; } h8c7_regulator_status.h8c7_mmc2_on = regulator_is_enabled(h8c7_regulator_status.regulator); if (h8c7_regulator_status.h8c7_mmc2_on) { ena_err = regulator_enable(h8c7_regulator_status.regulator); if (ena_err < 0) { regulator_put(h8c7_regulator_status.regulator); DRM_ERROR("FATAL:enable h8c7 regulator error\n"); } } /*Temperory Work Around to keep VEMMC2 rail ON as current display panel doesnt support this */ ena_err = regulator_enable(h8c7_regulator_status.regulator); if (ena_err < 0) { regulator_put(h8c7_regulator_status.regulator); DRM_ERROR("FATAL:enable h8c7 regulator error in WA\n"); } } static int h8c7_lcd_cmd_probe(struct platform_device *pdev) { DRM_INFO("%s: H8C7 panel detected\n", __func__); intel_mid_panel_register(h8c7_cmd_init); return 0; } struct platform_driver h8c7_lcd_driver = { .probe = h8c7_lcd_cmd_probe, .driver = { .name = "H8C7 CMD RHB", .owner = THIS_MODULE, }, };