target: msm8909: Add initial display changes for msm8909
Add initial display changes for msm8909 in lk so as to help to
get splash and continuous splash working.
Change-Id: Ic100f7f02323059813f0bbee913c4980ba97f2b3
diff --git a/target/msm8909/target_display.c b/target/msm8909/target_display.c
new file mode 100755
index 0000000..338c5da
--- /dev/null
+++ b/target/msm8909/target_display.c
@@ -0,0 +1,249 @@
+/* Copyright (c) 2014, 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 <board.h>
+#include <mdp3.h>
+#include <scm.h>
+#include <platform/gpio.h>
+#include <platform/iomap.h>
+#include <target/display.h>
+
+#include "include/panel.h"
+#include "include/display_resource.h"
+
+#define VCO_DELAY_USEC 1000
+#define GPIO_STATE_LOW 0
+#define GPIO_STATE_HIGH 2
+#define RESET_GPIO_SEQ_LEN 3
+#define PWM_DUTY_US 13
+#define PWM_PERIOD_US 27
+
+static void mdss_dsi_uniphy_pll_sw_reset_8909(uint32_t pll_base)
+{
+ writel(0x01, pll_base + 0x0068); /* PLL TEST CFG */
+ mdelay(1);
+ writel(0x00, pll_base + 0x0068); /* PLL TEST CFG */
+ mdelay(1);
+}
+
+static uint32_t dsi_pll_enable_seq_8909(uint32_t pll_base)
+{
+ uint32_t pll_locked = 0;
+
+ writel(0x01, pll_base + 0x0068); /* PLL TEST CFG */
+ udelay(1);
+ writel(0x00, pll_base + 0x0068); /* PLL TEST CFG */
+
+ /*
+ * Add hardware recommended delays between register writes for
+ * the updates to take effect. These delays are necessary for the
+ * PLL to successfully lock
+ */
+ writel(0x34, pll_base + 0x0070); /* CAL CFG1*/
+ udelay(1);
+ writel(0x01, pll_base + 0x0020); /* GLB CFG */
+ udelay(1);
+ writel(0x05, pll_base + 0x0020); /* GLB CFG */
+ udelay(1);
+ writel(0x0f, pll_base + 0x0020); /* GLB CFG */
+ udelay(1);
+
+ writel(0x04, pll_base + 0x0064); /* LKDetect CFG2 */
+ udelay(1);
+ writel(0x05, pll_base + 0x0064); /* LKDetect CFG2 */
+ udelay(512);
+ pll_locked = readl(pll_base + 0x00c0) & 0x01;
+
+ return pll_locked;
+}
+
+int target_backlight_ctrl(struct backlight *bl, uint8_t enable)
+{
+ struct pm8x41_mpp mpp;
+ int rc;
+
+ if (bl->bl_interface_type == BL_DCS)
+ return 0;
+
+ mpp.base = PM8x41_MMP4_BASE;
+ mpp.vin = MPP_VIN0;
+ if (enable) {
+ pm_pwm_enable(false);
+ rc = pm_pwm_config(PWM_DUTY_US, PWM_PERIOD_US);
+ if (rc < 0)
+ mpp.mode = MPP_HIGH;
+ else {
+ mpp.mode = MPP_DTEST1;
+ pm_pwm_enable(true);
+ }
+ pm8x41_config_output_mpp(&mpp);
+ pm8x41_enable_mpp(&mpp, MPP_ENABLE);
+ } else {
+ pm_pwm_enable(false);
+ pm8x41_enable_mpp(&mpp, MPP_DISABLE);
+ }
+ mdelay(20);
+ return 0;
+}
+
+int target_panel_clock(uint8_t enable, struct msm_panel_info *pinfo)
+{
+ int32_t ret = 0;
+ struct mdss_dsi_pll_config *pll_data;
+ dprintf(SPEW, "target_panel_clock\n");
+
+ pll_data = pinfo->mipi.dsi_pll_config;
+ pll_data->vco_delay = VCO_DELAY_USEC;
+
+ if (enable) {
+ mdp_gdsc_ctrl(enable);
+ mdss_bus_clocks_enable();
+ mdp_clock_enable();
+ ret = restore_secure_cfg(SECURE_DEVICE_MDSS);
+ if (ret) {
+ dprintf(CRITICAL,
+ "%s: Failed to restore MDP security configs",
+ __func__);
+ mdp_clock_disable();
+ mdss_bus_clocks_disable();
+ mdp_gdsc_ctrl(0);
+ return ret;
+ }
+ mdss_dsi_uniphy_pll_sw_reset_8909(DSI0_PLL_BASE);
+ mdss_dsi_auto_pll_config(DSI0_PLL_BASE,
+ MIPI_DSI0_BASE, pll_data);
+ if (!dsi_pll_enable_seq_8909(DSI0_PLL_BASE))
+ dprintf(CRITICAL, "Not able to enable the pll\n");
+ gcc_dsi_clocks_enable(pll_data->pclk_m,
+ pll_data->pclk_n,
+ pll_data->pclk_d);
+ } else if(!target_cont_splash_screen()) {
+ gcc_dsi_clocks_disable();
+ mdp_clock_disable();
+ mdss_bus_clocks_disable();
+ mdp_gdsc_ctrl(enable);
+ }
+
+ return 0;
+}
+
+int target_panel_reset(uint8_t enable, struct panel_reset_sequence *resetseq,
+ struct msm_panel_info *pinfo)
+{
+ int ret = NO_ERROR;
+ uint32_t hw_id = board_hardware_id();
+ uint32_t hw_subtype = board_hardware_subtype();
+
+ if (enable) {
+ if (pinfo->mipi.use_enable_gpio) {
+ 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_dir(enable_gpio.pin_id, 2);
+ }
+
+ if (hw_id == HW_PLATFORM_SURF) {
+ /* configure backlight gpio for CDP */
+ gpio_tlmm_config(bkl_gpio.pin_id, 0,
+ bkl_gpio.pin_direction, bkl_gpio.pin_pull,
+ bkl_gpio.pin_strength, bkl_gpio.pin_state);
+ gpio_set_dir(bkl_gpio.pin_id, 2);
+ }
+
+ gpio_tlmm_config(reset_gpio.pin_id, 0,
+ reset_gpio.pin_direction, reset_gpio.pin_pull,
+ reset_gpio.pin_strength, reset_gpio.pin_state);
+
+ gpio_set_dir(reset_gpio.pin_id, 2);
+
+ /* reset */
+ for (int i = 0; i < RESET_GPIO_SEQ_LEN; i++) {
+ if (resetseq->pin_state[i] == GPIO_STATE_LOW)
+ gpio_set_dir(reset_gpio.pin_id, GPIO_STATE_LOW);
+ else
+ gpio_set_dir(reset_gpio.pin_id, GPIO_STATE_HIGH);
+ mdelay(resetseq->sleep[i]);
+ }
+ } else if(!target_cont_splash_screen()) {
+ gpio_set_dir(reset_gpio.pin_id, 0);
+ if (pinfo->mipi.use_enable_gpio)
+ gpio_set_dir(enable_gpio.pin_id, 0);
+ }
+
+ return ret;
+}
+
+int target_ldo_ctrl(uint8_t enable)
+{
+ /*
+ * The PMIC regulators needed for display are enabled in SBL.
+ * There is no access to the regulators is LK.
+ */
+ return NO_ERROR;
+}
+
+bool target_display_panel_node(char *panel_name, char *pbuf, uint16_t buf_size)
+{
+ return gcdb_display_cmdline_arg(pbuf, buf_size);
+}
+
+void target_display_init(const char *panel_name)
+{
+ uint32_t panel_loop = 0;
+ uint32_t ret = 0;
+
+ if (!strcmp(panel_name, NO_PANEL_CONFIG)) {
+ dprintf(INFO, "Skip panel configuration\n");
+ return;
+ }
+
+ do {
+ target_force_cont_splash_disable(false);
+ ret = gcdb_display_init(panel_name, MDP_REV_305, MIPI_FB_ADDR);
+ if (!ret || ret == ERR_NOT_SUPPORTED) {
+ break;
+ } else {
+ target_force_cont_splash_disable(true);
+ msm_display_off();
+ }
+ } while (++panel_loop <= oem_panel_max_auto_detect_panels());
+}
+
+void target_display_shutdown(void)
+{
+ gcdb_display_shutdown();
+}