| /* 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 <debug.h> |
| #include <smem.h> |
| #include <err.h> |
| #include <msm_panel.h> |
| #include <mipi_dsi.h> |
| #include <pm8x41.h> |
| #include <pm8x41_wled.h> |
| #include <board.h> |
| #include <mdp5.h> |
| #include <endian.h> |
| #include <platform/gpio.h> |
| #include <platform/clock.h> |
| #include <platform/iomap.h> |
| #include <target/display.h> |
| #include "include/panel.h" |
| #include "include/display_resource.h" |
| |
| static struct msm_fb_panel_data panel; |
| static uint8_t edp_enable; |
| |
| #define HFPLL_LDO_ID 12 |
| |
| static struct pm8x41_wled_data wled_ctrl = { |
| .mod_scheme = 0x00, |
| .led1_brightness = (0x0F << 8) | 0xEF, |
| .led2_brightness = (0x0F << 8) | 0xEF, |
| .led3_brightness = (0x0F << 8) | 0xEF, |
| .max_duty_cycle = 0x01, |
| .ovp = 0x2, |
| .full_current_scale = 0x19 |
| }; |
| |
| static uint32_t dsi_pll_enable_seq(uint32_t ctl_base) |
| { |
| uint32_t rc = 0; |
| |
| mdss_dsi_uniphy_pll_sw_reset(ctl_base); |
| |
| writel(0x01, ctl_base + 0x0220); /* GLB CFG */ |
| mdelay(1); |
| writel(0x05, ctl_base + 0x0220); /* GLB CFG */ |
| mdelay(1); |
| writel(0x07, ctl_base + 0x0220); /* GLB CFG */ |
| mdelay(1); |
| writel(0x0f, ctl_base + 0x0220); /* GLB CFG */ |
| mdelay(1); |
| |
| mdss_dsi_uniphy_pll_lock_detect_setting(ctl_base); |
| |
| while (!(readl(ctl_base + 0x02c0) & 0x01)) { |
| mdss_dsi_uniphy_pll_sw_reset(ctl_base); |
| writel(0x01, ctl_base + 0x0220); /* GLB CFG */ |
| mdelay(1); |
| writel(0x05, ctl_base + 0x0220); /* GLB CFG */ |
| mdelay(1); |
| writel(0x07, ctl_base + 0x0220); /* GLB CFG */ |
| mdelay(1); |
| writel(0x05, ctl_base + 0x0220); /* GLB CFG */ |
| mdelay(1); |
| writel(0x07, ctl_base + 0x0220); /* GLB CFG */ |
| mdelay(1); |
| writel(0x0f, ctl_base + 0x0220); /* GLB CFG */ |
| mdelay(2); |
| mdss_dsi_uniphy_pll_lock_detect_setting(ctl_base); |
| } |
| return rc; |
| } |
| |
| int target_backlight_ctrl(uint8_t enable) |
| { |
| uint32_t platform_id = board_platform_id(); |
| uint32_t hardware_id = board_hardware_id(); |
| uint8_t slave_id = 1; |
| |
| if (enable) { |
| if (platform_id == MSM8974AC) |
| if ((hardware_id == HW_PLATFORM_MTP) |
| || (hardware_id == HW_PLATFORM_LIQUID)) |
| slave_id = 3; |
| |
| pm8x41_wled_config_slave_id(slave_id); |
| pm8x41_wled_config(&wled_ctrl); |
| pm8x41_wled_sink_control(enable); |
| pm8x41_wled_iled_sync_control(enable); |
| } |
| pm8x41_wled_enable(enable); |
| |
| return NO_ERROR; |
| } |
| |
| int target_panel_clock(uint8_t enable, struct msm_panel_info *pinfo) |
| { |
| struct mdss_dsi_pll_config *pll_data; |
| uint32_t dual_dsi = pinfo->mipi.dual_dsi; |
| dprintf(SPEW, "target_panel_clock\n"); |
| |
| pll_data = pinfo->mipi.dsi_pll_config; |
| if (enable) { |
| mdp_gdsc_ctrl(enable); |
| mdp_clock_init(); |
| mdss_dsi_auto_pll_config(MIPI_DSI0_BASE, pll_data); |
| dsi_pll_enable_seq(MIPI_DSI0_BASE); |
| if (panel.panel_info.mipi.dual_dsi && |
| !(panel.panel_info.mipi.broadcast)) { |
| mdss_dsi_auto_pll_config(MIPI_DSI1_BASE, pll_data); |
| dsi_pll_enable_seq(MIPI_DSI1_BASE); |
| } |
| mmss_clock_auto_pll_init(DSI0_PHY_PLL_OUT, dual_dsi, |
| pll_data->pclk_m, |
| pll_data->pclk_n, |
| pll_data->pclk_d); |
| } else if(!target_cont_splash_screen()) { |
| // * Add here for continuous splash * |
| mmss_clock_disable(dual_dsi); |
| mdp_clock_disable(dual_dsi); |
| } |
| |
| return NO_ERROR; |
| } |
| |
| /* Pull DISP_RST_N high to get panel out of reset */ |
| int target_panel_reset(uint8_t enable, struct panel_reset_sequence *resetseq, |
| struct msm_panel_info *pinfo) |
| { |
| uint32_t rst_gpio = reset_gpio.pin_id; |
| uint32_t platform_id = board_platform_id(); |
| uint32_t hardware_id = board_hardware_id(); |
| |
| struct pm8x41_gpio resetgpio_param = { |
| .direction = PM_GPIO_DIR_OUT, |
| .output_buffer = PM_GPIO_OUT_CMOS, |
| .out_strength = PM_GPIO_OUT_DRIVE_MED, |
| }; |
| |
| if (platform_id == MSM8974AC) |
| if ((hardware_id == HW_PLATFORM_MTP) |
| || (hardware_id == HW_PLATFORM_LIQUID)) |
| rst_gpio = 20; |
| |
| dprintf(SPEW, "platform_id: %u, rst_gpio: %u\n", |
| platform_id, rst_gpio); |
| |
| pm8x41_gpio_config(rst_gpio, &resetgpio_param); |
| if (enable) { |
| gpio_tlmm_config(enable_gpio.pin_id, 0, |
| enable_gpio.pin_direction, enable_gpio.pin_pull, |
| enable_gpio.pin_strength, enable_gpio.pin_state); |
| |
| gpio_set(enable_gpio.pin_id, resetseq->pin_direction); |
| pm8x41_gpio_set(rst_gpio, resetseq->pin_state[0]); |
| mdelay(resetseq->sleep[0]); |
| pm8x41_gpio_set(rst_gpio, resetseq->pin_state[1]); |
| mdelay(resetseq->sleep[1]); |
| pm8x41_gpio_set(rst_gpio, resetseq->pin_state[2]); |
| mdelay(resetseq->sleep[2]); |
| } else { |
| resetgpio_param.out_strength = PM_GPIO_OUT_DRIVE_LOW; |
| pm8x41_gpio_config(rst_gpio, &resetgpio_param); |
| pm8x41_gpio_set(rst_gpio, PM_GPIO_FUNC_LOW); |
| gpio_set(enable_gpio.pin_id, resetseq->pin_direction); |
| } |
| return NO_ERROR; |
| } |
| |
| int target_ldo_ctrl(uint8_t enable) |
| { |
| uint32_t ldocounter = 0; |
| uint32_t pm8x41_ldo_base = 0x13F00; |
| |
| while (ldocounter < TOTAL_LDO_DEFINED) { |
| struct pm8x41_ldo ldo_entry = LDO((pm8x41_ldo_base + |
| 0x100 * ldo_entry_array[ldocounter].ldo_id), |
| ldo_entry_array[ldocounter].ldo_type); |
| |
| dprintf(SPEW, "Setting %s\n", |
| ldo_entry_array[ldocounter].ldo_id); |
| |
| /* Set voltage during power on */ |
| if (enable) { |
| pm8x41_ldo_set_voltage(&ldo_entry, |
| ldo_entry_array[ldocounter].ldo_voltage); |
| pm8x41_ldo_control(&ldo_entry, enable); |
| } else if(ldo_entry_array[ldocounter].ldo_id != HFPLL_LDO_ID) { |
| pm8x41_ldo_control(&ldo_entry, enable); |
| } |
| ldocounter++; |
| } |
| |
| return NO_ERROR; |
| } |
| |
| static uint32_t response_value = 0; |
| |
| uint32_t target_read_panel_signature(uint32_t panel_signature) |
| { |
| uint32_t rec_buf[1]; |
| uint32_t *lp = rec_buf, data; |
| int ret = response_value; |
| |
| if (ret && ret != panel_signature) |
| goto exit_read_signature; |
| |
| ret = mipi_dsi_cmds_tx(&read_ddb_start_cmd, 1); |
| if (ret) |
| goto exit_read_signature; |
| if (!mdss_dsi_cmds_rx(&lp, 1, 1)) |
| goto exit_read_signature; |
| |
| data = ntohl(*lp); |
| data = data >> 8; |
| response_value = data; |
| if (response_value != panel_signature) |
| ret = response_value; |
| |
| exit_read_signature: |
| return ret; |
| } |
| |
| static int msm8974_mdss_edp_panel_clock(int enable) |
| { |
| if (enable) { |
| mdp_gdsc_ctrl(enable); |
| mdp_clock_init(); |
| edp_clk_enable(); |
| } else if (!target_cont_splash_screen()) { |
| /* Add here for continuous splash */ |
| edp_clk_disable(); |
| mdp_clock_disable(); |
| mdp_gdsc_ctrl(enable); |
| } |
| |
| return 0; |
| } |
| |
| static void msm8974_lpg_backlight_enable(void) |
| { |
| /* lpg channel 8 */ |
| pm8x41_lpg_write(8, 0x41, 0x33); /* LPG_PWM_SIZE_CLK, */ |
| pm8x41_lpg_write(8, 0x42, 0x01); /* LPG_PWM_FREQ_PREDIV */ |
| pm8x41_lpg_write(8, 0x43, 0x20); /* LPG_PWM_TYPE_CONFIG */ |
| pm8x41_lpg_write(8, 0x44, 0xb2); /* LPG_VALUE_LSB */ |
| pm8x41_lpg_write(8, 0x45, 0x01); /* LPG_VALUE_MSB */ |
| pm8x41_lpg_write(8, 0x46, 0xe4); /* LPG_ENABLE_CONTROL */ |
| } |
| |
| static void msm8974_lpg_backlight_disable(void) |
| { |
| pm8x41_lpg_write(8, 0x46, 0x00); /* LPG_ENABLE_CONTROL */ |
| } |
| |
| static int msm8974_edp_panel_power(int enable) |
| { |
| struct pm8x41_gpio gpio36_param = { |
| .direction = PM_GPIO_DIR_OUT, |
| .function = PM_GPIO_FUNC_2, |
| .vin_sel = 2, /* VIN_2 */ |
| .pull = PM_GPIO_PULL_UP_1_5 | PM_GPIO_PULLDOWN_10, |
| .output_buffer = PM_GPIO_OUT_CMOS, |
| .out_strength = PM_GPIO_OUT_DRIVE_HIGH, |
| }; |
| |
| struct pm8x41_ldo ldo12 = LDO(PM8x41_LDO12, PLDO_TYPE); |
| |
| if (enable) { |
| /* Enable backlight */ |
| dprintf(SPEW, "Enable Backlight\n"); |
| pm8x41_gpio_config(36, &gpio36_param); |
| msm8974_lpg_backlight_enable(); |
| dprintf(SPEW, "Enable Backlight Done\n"); |
| |
| /* Turn on LDO12 for edp vdda */ |
| dprintf(SPEW, "Setting LDO12 n"); |
| pm8x41_ldo_set_voltage(&ldo12, 1800000); |
| pm8x41_ldo_control(&ldo12, enable); |
| dprintf(SPEW, "Setting LDO12 Done\n"); |
| |
| /* Panel Enable */ |
| dprintf(SPEW, "Panel Enable\n"); |
| gpio_tlmm_config(58, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_8MA, |
| GPIO_DISABLE); |
| gpio_set(58, 2); |
| dprintf(SPEW, "Panel Enable Done\n"); |
| } else { |
| /* Keep LDO12 on, otherwise kernel will not boot */ |
| gpio_set(58, 0); |
| msm8974_lpg_backlight_disable(); |
| } |
| |
| return 0; |
| } |
| |
| void display_init(void) |
| { |
| uint32_t hw_id = board_hardware_id(); |
| uint32_t panel_loop = 0; |
| uint32_t ret = 0; |
| switch (hw_id) { |
| case HW_PLATFORM_LIQUID: |
| edp_panel_init(&(panel.panel_info)); |
| panel.clk_func = msm8974_mdss_edp_panel_clock; |
| panel.power_func = msm8974_edp_panel_power; |
| panel.fb.base = (void *)EDP_FB_ADDR; |
| panel.fb.format = FB_FORMAT_RGB888; |
| panel.mdp_rev = MDP_REV_50; |
| |
| if (msm_display_init(&panel)) { |
| dprintf(CRITICAL, "edp init failed!\n"); |
| return; |
| } |
| |
| edp_enable = 1; |
| break; |
| default: |
| do { |
| ret = gcdb_display_init(MDP_REV_50, MIPI_FB_ADDR); |
| if (!ret || ret == ERR_NOT_SUPPORTED) { |
| break; |
| } else { |
| target_force_cont_splash_disable(true); |
| msm_display_off(); |
| target_force_cont_splash_disable(false); |
| } |
| } while (++panel_loop <= oem_panel_max_auto_detect_panels()); |
| break; |
| } |
| } |
| |
| void display_shutdown(void) |
| { |
| uint32_t hw_id = board_hardware_id(); |
| switch (hw_id) { |
| case HW_PLATFORM_LIQUID: |
| if (edp_enable) |
| msm_display_off(); |
| break; |
| default: |
| gcdb_display_shutdown(); |
| break; |
| } |
| } |