--- /dev/null
+/*
+ * Copyright (C) 2012 Samsung Electronics
+ *
+ * Author: InKi Dae <inki.dae@samsung.com>
+ * Author: Donghwa Lee <dh09.lee@samsung.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <malloc.h>
+#include <fdtdec.h>
+#include <libfdt.h>
+#include <linux/err.h>
+#include <asm/arch/dsim.h>
+#include <asm/arch/mipi_dsim.h>
+#include <asm/arch/power.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/clk.h>
+
+#include "exynos_mipi_dsi_lowlevel.h"
+#include "exynos_mipi_dsi_common.h"
+
+#define master_to_driver(a) (a->dsim_lcd_drv)
+#define master_to_device(a) (a->dsim_lcd_dev)
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static struct exynos_platform_mipi_dsim *dsim_pd;
+#ifdef CONFIG_OF_CONTROL
+static struct mipi_dsim_config dsim_config_dt;
+static struct exynos_platform_mipi_dsim dsim_platform_data_dt;
+static struct mipi_dsim_lcd_device mipi_lcd_device_dt;
+#endif
+
+struct mipi_dsim_ddi {
+ int bus_id;
+ struct list_head list;
+ struct mipi_dsim_lcd_device *dsim_lcd_dev;
+ struct mipi_dsim_lcd_driver *dsim_lcd_drv;
+};
+
+static LIST_HEAD(dsim_ddi_list);
+static LIST_HEAD(dsim_lcd_dev_list);
+
+int exynos_mipi_dsi_register_lcd_device(struct mipi_dsim_lcd_device *lcd_dev)
+{
+ struct mipi_dsim_ddi *dsim_ddi;
+
+ if (!lcd_dev) {
+ debug("mipi_dsim_lcd_device is NULL.\n");
+ return -EFAULT;
+ }
+
+ if (!lcd_dev->name) {
+ debug("dsim_lcd_device name is NULL.\n");
+ return -EFAULT;
+ }
+
+ dsim_ddi = kzalloc(sizeof(struct mipi_dsim_ddi), GFP_KERNEL);
+ if (!dsim_ddi) {
+ debug("failed to allocate dsim_ddi object.\n");
+ return -EFAULT;
+ }
+
+ dsim_ddi->dsim_lcd_dev = lcd_dev;
+
+ list_add_tail(&dsim_ddi->list, &dsim_ddi_list);
+
+ return 0;
+}
+
+struct mipi_dsim_ddi
+ *exynos_mipi_dsi_find_lcd_device(struct mipi_dsim_lcd_driver *lcd_drv)
+{
+ struct mipi_dsim_ddi *dsim_ddi;
+ struct mipi_dsim_lcd_device *lcd_dev;
+
+ list_for_each_entry(dsim_ddi, &dsim_ddi_list, list) {
+ lcd_dev = dsim_ddi->dsim_lcd_dev;
+ if (!lcd_dev)
+ continue;
+
+ if (lcd_drv->id >= 0) {
+ if ((strcmp(lcd_drv->name, lcd_dev->name)) == 0 &&
+ lcd_drv->id == lcd_dev->id) {
+ /**
+ * bus_id would be used to identify
+ * connected bus.
+ */
+ dsim_ddi->bus_id = lcd_dev->bus_id;
+
+ return dsim_ddi;
+ }
+ } else {
+ if ((strcmp(lcd_drv->name, lcd_dev->name)) == 0) {
+ /**
+ * bus_id would be used to identify
+ * connected bus.
+ */
+ dsim_ddi->bus_id = lcd_dev->bus_id;
+
+ return dsim_ddi;
+ }
+ }
+
+ kfree(dsim_ddi);
+ list_del(&dsim_ddi_list);
+ }
+
+ return NULL;
+}
+
+int exynos_mipi_dsi_register_lcd_driver(struct mipi_dsim_lcd_driver *lcd_drv)
+{
+ struct mipi_dsim_ddi *dsim_ddi;
+
+ if (!lcd_drv) {
+ debug("mipi_dsim_lcd_driver is NULL.\n");
+ return -EFAULT;
+ }
+
+ if (!lcd_drv->name) {
+ debug("dsim_lcd_driver name is NULL.\n");
+ return -EFAULT;
+ }
+
+ dsim_ddi = exynos_mipi_dsi_find_lcd_device(lcd_drv);
+ if (!dsim_ddi) {
+ debug("mipi_dsim_ddi object not found.\n");
+ return -EFAULT;
+ }
+
+ dsim_ddi->dsim_lcd_drv = lcd_drv;
+
+ debug("registered panel driver(%s) to mipi-dsi driver.\n",
+ lcd_drv->name);
+
+ return 0;
+
+}
+
+struct mipi_dsim_ddi
+ *exynos_mipi_dsi_bind_lcd_ddi(struct mipi_dsim_device *dsim,
+ const char *name)
+{
+ struct mipi_dsim_ddi *dsim_ddi;
+ struct mipi_dsim_lcd_driver *lcd_drv;
+ struct mipi_dsim_lcd_device *lcd_dev;
+
+ list_for_each_entry(dsim_ddi, &dsim_ddi_list, list) {
+ lcd_drv = dsim_ddi->dsim_lcd_drv;
+ lcd_dev = dsim_ddi->dsim_lcd_dev;
+ if (!lcd_drv || !lcd_dev)
+ continue;
+
+ debug("lcd_drv->id = %d, lcd_dev->id = %d\n",
+ lcd_drv->id, lcd_dev->id);
+
+ if ((strcmp(lcd_drv->name, name) == 0)) {
+ lcd_dev->master = dsim;
+
+ dsim->dsim_lcd_dev = lcd_dev;
+ dsim->dsim_lcd_drv = lcd_drv;
+
+ return dsim_ddi;
+ }
+ }
+
+ return NULL;
+}
+
+/* define MIPI-DSI Master operations. */
+static struct mipi_dsim_master_ops master_ops = {
+ .cmd_write = exynos_mipi_dsi_wr_data,
+ .get_dsim_frame_done = exynos_mipi_dsi_get_frame_done_status,
+ .clear_dsim_frame_done = exynos_mipi_dsi_clear_frame_done,
+};
+
+int exynos_mipi_dsi_init(void)
+{
+ struct mipi_dsim_device *dsim;
+ struct mipi_dsim_config *dsim_config;
+ struct mipi_dsim_ddi *dsim_ddi;
+
+ dsim = kzalloc(sizeof(struct mipi_dsim_device), GFP_KERNEL);
+ if (!dsim) {
+ debug("failed to allocate dsim object.\n");
+ return -EFAULT;
+ }
+
+ /* get mipi_dsim_config. */
+ dsim_config = dsim_pd->dsim_config;
+ if (dsim_config == NULL) {
+ debug("failed to get dsim config data.\n");
+ return -EFAULT;
+ }
+
+ dsim->pd = dsim_pd;
+ dsim->dsim_config = dsim_config;
+ dsim->master_ops = &master_ops;
+
+ /* bind lcd ddi matched with panel name. */
+ dsim_ddi = exynos_mipi_dsi_bind_lcd_ddi(dsim, dsim_pd->lcd_panel_name);
+ if (!dsim_ddi) {
+ debug("mipi_dsim_ddi object not found.\n");
+ return -ENOSYS;
+ }
+ if (dsim_pd->lcd_power)
+ dsim_pd->lcd_power();
+
+ if (dsim_pd->mipi_power)
+ dsim_pd->mipi_power();
+
+ /* phy_enable(unsigned int dev_index, unsigned int enable) */
+ if (dsim_pd->phy_enable)
+ dsim_pd->phy_enable(0, 1);
+
+ set_mipi_clk();
+
+ exynos_mipi_dsi_init_dsim(dsim);
+ exynos_mipi_dsi_init_link(dsim);
+ exynos_mipi_dsi_set_hs_enable(dsim);
+
+ /* set display timing. */
+ exynos_mipi_dsi_set_display_mode(dsim, dsim->dsim_config);
+
+ /* initialize mipi-dsi client(lcd panel). */
+ if (dsim_ddi->dsim_lcd_drv && dsim_ddi->dsim_lcd_drv->mipi_panel_init) {
+ dsim_ddi->dsim_lcd_drv->mipi_panel_init(dsim);
+ dsim_ddi->dsim_lcd_drv->mipi_display_on(dsim);
+ }
+
+ debug("mipi-dsi driver(%s mode) has been probed.\n",
+ (dsim_config->e_interface == DSIM_COMMAND) ?
+ "CPU" : "RGB");
+
+ return 0;
+}
+
+void exynos_set_dsim_platform_data(struct exynos_platform_mipi_dsim *pd)
+{
+ if (pd == NULL) {
+ debug("pd is NULL\n");
+ return;
+ }
+
+ dsim_pd = pd;
+}
+
+#ifdef CONFIG_OF_CONTROL
+int exynos_dsim_config_parse_dt(const void *blob)
+{
+ int node;
+
+ node = fdtdec_next_compatible(blob, 0, COMPAT_SAMSUNG_EXYNOS_MIPI_DSI);
+ if (node <= 0) {
+ printf("exynos_mipi_dsi: Can't get device node for mipi dsi\n");
+ return -ENODEV;
+ }
+
+ dsim_config_dt.e_interface = fdtdec_get_int(blob, node,
+ "samsung,dsim-config-e-interface", 0);
+
+ dsim_config_dt.e_virtual_ch = fdtdec_get_int(blob, node,
+ "samsung,dsim-config-e-virtual-ch", 0);
+
+ dsim_config_dt.e_pixel_format = fdtdec_get_int(blob, node,
+ "samsung,dsim-config-e-pixel-format", 0);
+
+ dsim_config_dt.e_burst_mode = fdtdec_get_int(blob, node,
+ "samsung,dsim-config-e-burst-mode", 0);
+
+ dsim_config_dt.e_no_data_lane = fdtdec_get_int(blob, node,
+ "samsung,dsim-config-e-no-data-lane", 0);
+
+ dsim_config_dt.e_byte_clk = fdtdec_get_int(blob, node,
+ "samsung,dsim-config-e-byte-clk", 0);
+
+ dsim_config_dt.hfp = fdtdec_get_int(blob, node,
+ "samsung,dsim-config-hfp", 0);
+
+ dsim_config_dt.p = fdtdec_get_int(blob, node,
+ "samsung,dsim-config-p", 0);
+ dsim_config_dt.m = fdtdec_get_int(blob, node,
+ "samsung,dsim-config-m", 0);
+ dsim_config_dt.s = fdtdec_get_int(blob, node,
+ "samsung,dsim-config-s", 0);
+
+ dsim_config_dt.pll_stable_time = fdtdec_get_int(blob, node,
+ "samsung,dsim-config-pll-stable-time", 0);
+
+ dsim_config_dt.esc_clk = fdtdec_get_int(blob, node,
+ "samsung,dsim-config-esc-clk", 0);
+
+ dsim_config_dt.stop_holding_cnt = fdtdec_get_int(blob, node,
+ "samsung,dsim-config-stop-holding-cnt", 0);
+
+ dsim_config_dt.bta_timeout = fdtdec_get_int(blob, node,
+ "samsung,dsim-config-bta-timeout", 0);
+
+ dsim_config_dt.rx_timeout = fdtdec_get_int(blob, node,
+ "samsung,dsim-config-rx-timeout", 0);
+
+ mipi_lcd_device_dt.name = fdtdec_get_config_string(blob,
+ "samsung,dsim-device-name");
+
+ mipi_lcd_device_dt.id = fdtdec_get_int(blob, node,
+ "samsung,dsim-device-id", 0);
+
+ mipi_lcd_device_dt.bus_id = fdtdec_get_int(blob, node,
+ "samsung,dsim-device-bus_id", 0);
+
+ mipi_lcd_device_dt.reverse_panel = fdtdec_get_int(blob, node,
+ "samsung,dsim-device-reverse-panel", 0);
+
+ return 0;
+}
+
+void exynos_init_dsim_platform_data(vidinfo_t *vid)
+{
+ if (exynos_dsim_config_parse_dt(gd->fdt_blob))
+ debug("Can't get proper dsim config.\n");
+
+ strcpy(dsim_platform_data_dt.lcd_panel_name, mipi_lcd_device_dt.name);
+ dsim_platform_data_dt.dsim_config = &dsim_config_dt;
+ dsim_platform_data_dt.mipi_power = mipi_power;
+ dsim_platform_data_dt.phy_enable = set_mipi_phy_ctrl;
+ dsim_platform_data_dt.lcd_panel_info = (void *)vid;
+
+ mipi_lcd_device_dt.platform_data = (void *)&dsim_platform_data_dt;
+ exynos_mipi_dsi_register_lcd_device(&mipi_lcd_device_dt);
+
+ dsim_pd = &dsim_platform_data_dt;
+}
+#endif
Code Review / kvmfornfv.git / blobdiff