/* Copyright (c) 2012-2013, The Linux Foundation. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * Neither the name of The Linux Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include #include #include #include #include #include #include #include #include #include static struct msm_fb_panel_data panel; static uint8_t display_enable; extern int msm_display_init(struct msm_fb_panel_data *pdata); extern int msm_display_off(); extern int mdss_dsi_uniphy_pll_config(void); extern int mdss_sharp_dsi_uniphy_pll_config(void); static int msm8974_backlight_on() { static struct pm8x41_wled_data wled_ctrl = { .mod_scheme = 0xC3, .led1_brightness = (0x0F << 8) | 0xEF, .led2_brightness = (0x0F << 8) | 0xEF, .led3_brightness = (0x0F << 8) | 0xEF, .max_duty_cycle = 0x01, }; pm8x41_wled_config(&wled_ctrl); pm8x41_wled_sink_control(1); pm8x41_wled_iled_sync_control(1); pm8x41_wled_enable(1); return 0; } static int msm8974_mdss_dsi_panel_clock(uint8_t enable) { if (enable) { mdp_gdsc_ctrl(enable); mdp_clock_init(); mdss_dsi_uniphy_pll_config(); mmss_clock_init(DSI0_PHY_PLL_OUT); } else if(!target_cont_splash_screen()) { // * Add here for continuous splash * mmss_clock_disable(); mdp_clock_disable(); mdp_gdsc_ctrl(enable); } return 0; } static int msm8974_mdss_sharp_dsi_panel_clock(uint8_t enable) { if (enable) { mdp_gdsc_ctrl(enable); mdp_clock_init(); mdss_sharp_dsi_uniphy_pll_config(); mmss_clock_init(DSI0_PHY_PLL_OUT); } else if (!target_cont_splash_screen()) { /* Add here for continuous splash */ mmss_clock_disable(); mdp_clock_disable(); mdp_gdsc_ctrl(enable); } return 0; } /* Pull DISP_RST_N high to get panel out of reset */ static void msm8974_mdss_mipi_panel_reset(uint8_t enable) { struct pm8x41_gpio gpio19_param = { .direction = PM_GPIO_DIR_OUT, .output_buffer = PM_GPIO_OUT_CMOS, .out_strength = PM_GPIO_OUT_DRIVE_MED, }; pm8x41_gpio_config(19, &gpio19_param); if (enable) { gpio_tlmm_config(58, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_8MA, GPIO_DISABLE); pm8x41_gpio_set(19, PM_GPIO_FUNC_HIGH); mdelay(2); pm8x41_gpio_set(19, PM_GPIO_FUNC_LOW); mdelay(5); pm8x41_gpio_set(19, PM_GPIO_FUNC_HIGH); mdelay(2); gpio_set(58, 2); } else { gpio19_param.out_strength = PM_GPIO_OUT_DRIVE_LOW; pm8x41_gpio_config(19, &gpio19_param); pm8x41_gpio_set(19, PM_GPIO_FUNC_LOW); gpio_set(58, 2); } } static int msm8974_mipi_panel_power(uint8_t enable) { if (enable) { /* Enable backlight */ msm8974_backlight_on(); /* Turn on LDO8 for lcd1 mipi vdd */ dprintf(SPEW, " Setting LDO22\n"); pm8x41_ldo_set_voltage("LDO22", 3000000); pm8x41_ldo_control("LDO22", enable); dprintf(SPEW, " Setting LDO12\n"); /* Turn on LDO23 for lcd1 mipi vddio */ pm8x41_ldo_set_voltage("LDO12", 1800000); pm8x41_ldo_control("LDO12", enable); dprintf(SPEW, " Setting LDO2\n"); /* Turn on LDO2 for vdda_mipi_dsi */ pm8x41_ldo_set_voltage("LDO2", 1200000); pm8x41_ldo_control("LDO2", enable); dprintf(SPEW, " Panel Reset \n"); /* Panel Reset */ msm8974_mdss_mipi_panel_reset(enable); dprintf(SPEW, " Panel Reset Done\n"); } else { msm8974_mdss_mipi_panel_reset(enable); pm8x41_wled_enable(enable); pm8x41_ldo_control("LDO2", enable); pm8x41_ldo_control("LDO22", enable); } return 0; } void display_init(void) { uint32_t hw_id = board_hardware_id(); uint32_t soc_ver = board_soc_version(); dprintf(INFO, "display_init(),target_id=%d.\n", hw_id); switch (hw_id) { case HW_PLATFORM_MTP: case HW_PLATFORM_FLUID: case HW_PLATFORM_SURF: mipi_toshiba_video_720p_init(&(panel.panel_info)); panel.clk_func = msm8974_mdss_dsi_panel_clock; panel.power_func = msm8974_mipi_panel_power; panel.fb.base = MIPI_FB_ADDR; panel.fb.width = panel.panel_info.xres; panel.fb.height = panel.panel_info.yres; panel.fb.stride = panel.panel_info.xres; panel.fb.bpp = panel.panel_info.bpp; panel.fb.format = FB_FORMAT_RGB888; panel.mdp_rev = MDP_REV_50; break; case HW_PLATFORM_DRAGON: mipi_sharp_video_qhd_init(&(panel.panel_info)); panel.clk_func = msm8974_mdss_sharp_dsi_panel_clock; panel.power_func = msm8974_mipi_panel_power; panel.fb.base = MIPI_FB_ADDR; panel.fb.width = panel.panel_info.xres; panel.fb.height = panel.panel_info.yres; panel.fb.stride = panel.panel_info.xres; panel.fb.bpp = panel.panel_info.bpp; panel.fb.format = FB_FORMAT_RGB888; panel.mdp_rev = MDP_REV_50; break; default: return; }; if (msm_display_init(&panel)) { dprintf(CRITICAL, "Display init failed!\n"); return; } display_enable = 1; } void display_shutdown(void) { if (display_enable) msm_display_off(); }