static void mipi_dsi_clk(int on) { char *cc, *ns, *md; cc = mmss_cc_base + 0x004c; md = mmss_cc_base + 0x0050; ns = mmss_cc_base + 0x0054; if (on) { if (mipi_dsi_mxo_selected()) MIPI_OUTP(cc, 0x125); /* mxo */ else MIPI_OUTP(cc, 0x25); /* pxo */ MIPI_OUTP(md, 0x1fd); MIPI_OUTP(ns, 0xff000003); } else MIPI_OUTP(cc, 0); wmb(); }
static int mipi_dsi_probe(struct platform_device *pdev) { struct msm_fb_data_type *mfd; struct fb_info *fbi; struct platform_device *mdp_dev = NULL; struct msm_fb_panel_data *pdata = NULL; int rc; resource_size_t size ; if ((pdev->id == 0) && (pdev->num_resources >= 0)) { mipi_dsi_pdata = pdev->dev.platform_data; size = resource_size(&pdev->resource[0]); mipi_dsi_base = ioremap(pdev->resource[0].start, size); MSM_FB_INFO("mipi_dsi base phy_addr = 0x%x virt = 0x%x\n", pdev->resource[0].start, (int) mipi_dsi_base); if (!mipi_dsi_base) return -ENOMEM; mmss_cc_base = ioremap(MMSS_CC_BASE_PHY, 0x200); MSM_FB_INFO("mmss_cc base phy_addr = 0x%x virt = 0x%x\n", MMSS_CC_BASE_PHY, (int) mmss_cc_base); if (!mmss_cc_base) return -ENOMEM; mmss_sfpb_base = ioremap(MMSS_SFPB_BASE_PHY, 0x100); MSM_FB_INFO("mmss_sfpb base phy_addr = 0x%x virt = 0x%x\n", MMSS_SFPB_BASE_PHY, (int) mmss_sfpb_base); if (!mmss_cc_base) return -ENOMEM; rc = request_irq(DSI_IRQ, mipi_dsi_isr, IRQF_DISABLED, "MIPI_DSI", 0); if (rc) { printk(KERN_ERR "mipi_dsi_host request_irq() failed!\n"); return rc; } disable_irq(DSI_IRQ); mipi_dsi_calibration(); if (mipi_dsi_mxo_selected()) dsi_cc_data |= BIT(8); /* use MXO for DSI PLL clkref */ else dsi_cc_data &= ~BIT(8); /* use PXO */ mipi_dsi_resource_initialized = 1; return 0; } if (!mipi_dsi_resource_initialized) return -EPERM; mfd = platform_get_drvdata(pdev); if (!mfd) return -ENODEV; if (mfd->key != MFD_KEY) return -EINVAL; if (pdev_list_cnt >= MSM_FB_MAX_DEV_LIST) return -ENOMEM; mdp_dev = platform_device_alloc("mdp", pdev->id); if (!mdp_dev) return -ENOMEM; /* * link to the latest pdev */ mfd->pdev = mdp_dev; mfd->dest = DISPLAY_LCD; /* * alloc panel device data */ if (platform_device_add_data (mdp_dev, pdev->dev.platform_data, sizeof(struct msm_fb_panel_data))) { printk(KERN_ERR "mipi_dsi_probe: platform_device_add_data failed!\n"); platform_device_put(mdp_dev); return -ENOMEM; } /* * data chain */ pdata = mdp_dev->dev.platform_data; pdata->on = mipi_dsi_on; pdata->off = mipi_dsi_off; pdata->next = pdev; /* * get/set panel specific fb info */ mfd->panel_info = pdata->panel_info; if (mfd->index == 0) mfd->fb_imgType = MSMFB_DEFAULT_TYPE; else mfd->fb_imgType = MDP_RGB_565; fbi = mfd->fbi; fbi->var.pixclock = mfd->panel_info.clk_rate; fbi->var.left_margin = mfd->panel_info.lcdc.h_back_porch; fbi->var.right_margin = mfd->panel_info.lcdc.h_front_porch; fbi->var.upper_margin = mfd->panel_info.lcdc.v_back_porch; fbi->var.lower_margin = mfd->panel_info.lcdc.v_front_porch; fbi->var.hsync_len = mfd->panel_info.lcdc.h_pulse_width; fbi->var.vsync_len = mfd->panel_info.lcdc.v_pulse_width; #ifdef DSI_CLK clk_rate = mfd->panel_info.clk_max; if (clk_set_max_rate(mipi_dsi_clk, clk_rate) < 0) printk(KERN_ERR "%s: clk_set_max_rate failed\n", __func__); mfd->panel_info.clk_rate = mfd->panel_info.clk_min; #endif /* * set driver data */ platform_set_drvdata(mdp_dev, mfd); /* * register in mdp driver */ rc = platform_device_add(mdp_dev); if (rc) goto mipi_dsi_probe_err; pdev_list[pdev_list_cnt++] = pdev; mfd->pm_qos_req = pm_qos_add_request(PM_QOS_SYSTEM_BUS_FREQ, PM_QOS_DEFAULT_VALUE); if (!mfd->pm_qos_req) goto mipi_dsi_probe_err; return 0; mipi_dsi_probe_err: platform_device_put(mdp_dev); return rc; }