CHROMIUM: Remove "DP Hotplug" in mach-exynos.
[cascardo/linux.git] / arch / arm / mach-exynos / mach-exynos5-dt.c
index 6be8eea..0d12546 100644 (file)
 #include <linux/spi/spi.h>
 #include <linux/memblock.h>
 #include <linux/of_fdt.h>
+#include <linux/err.h>
+#include <linux/platform_data/ntc_thermistor.h>
 
 #include <asm/mach/arch.h>
 #include <asm/hardware/gic.h>
+#include <mach/bitfix-snow.h>
 #include <mach/map.h>
+#include <mach/ppmu.h>
+#include <mach/dev.h>
 #include <mach/ohci.h>
 #include <mach/regs-pmu.h>
 #include <mach/sysmmu.h>
@@ -37,6 +42,7 @@
 #include <mach/regs-pmu.h>
 
 #include <plat/audio.h>
+#include <plat/adc.h>  /* for s3c_adc_register and friends */
 #include <plat/cpu.h>
 #include <plat/dsim.h>
 #include <plat/fb.h>
@@ -51,7 +57,6 @@
 #include <plat/ehci.h>
 #include <plat/dp.h>
 #include <plat/s3c64xx-spi.h>
-#include <plat/adc.h>
 
 #include <video/platform_lcd.h>
 
@@ -81,6 +86,7 @@ static void __init smsc911x_init(int ncs)
                S5P_SROM_BC0 + (ncs * 4));
 }
 
+#ifndef CONFIG_DRM_EXYNOS_FIMD
 static struct s3c_fb_pd_win smdk5250_fb_win0 = {
        .win_mode = {
                .left_margin    = 4,
@@ -137,32 +143,27 @@ static struct s3c_fb_pd_win smdk5250_fb_win2 = {
        .max_bpp                = 32,
        .default_bpp            = 24,
 };
+#endif
 
-static struct fb_videomode snow_fb_window[] = {
-       [0] = { /* Only LCD Connected */
-               .left_margin    = 0,
-               .right_margin   = 0,
-               .upper_margin   = 4,
-               .lower_margin   = 4,
-               .hsync_len      = 5,
-               .vsync_len      = 32,
+/*
+ * - 70250000. / ((1366 + 40 + 40 + 32) * (768 + 10 + 10 + 5))
+ * - 59.93751141159025
+ * - 70500000. / ((1366 + 40 + 40 + 32) * (768 + 10 + 10 + 5))
+ * - 60.150812163944664
+ * - 70500000. / ((1366 + 40 + 40 + 32) * (768 + 10 + 12 + 6))
+ *   59.92411312312578
+ */
+static struct fb_videomode snow_fb_window = {
+               .left_margin    = 40,
+               .right_margin   = 40,
+               .upper_margin   = 10,
+               .lower_margin   = 12,
+               .hsync_len      = 32,
+               .vsync_len      = 6,
                .xres           = 1366,
                .yres           = 768,
-       },
-       [1] = { /* TV & LCD Connected */
-               .left_margin    = 70,
-               .right_margin   = 70,
-               .upper_margin   = 12,
-               .lower_margin   = 13,
-               .hsync_len      = 5,
-               .vsync_len      = 32,
-               .xres           = 1280,
-               .yres           = 720,
-       },
-       [2] = {
-               .xres           = -1,
-               .yres           = -1,
-       },
+               .refresh        = 60,
+               .pixclock       = 70500000,
 };
 
 static void exynos_fimd_gpio_setup_24bpp(void)
@@ -178,7 +179,6 @@ static void exynos_fimd_gpio_setup_24bpp(void)
         */
        reg = __raw_readl(S3C_VA_SYS + 0x0214);
        reg &= ~(1 << 15);      /* To save other reset values */
-       reg |= (1 << 15);
        __raw_writel(reg, S3C_VA_SYS + 0x0214);
 }
 
@@ -223,31 +223,18 @@ static struct exynos_drm_hdmi_pdata drm_hdmi_pdata = {
 
 #ifdef CONFIG_DRM_EXYNOS_FIMD
 static struct exynos_drm_fimd_pdata smdk5250_lcd1_pdata = {
-       .panel[0].timing   = {
-               .xres           = 1280,
-               .yres           = 800,
-               .hsync_len      = 4,
-               .left_margin    = 0x4,
-               .right_margin   = 0x4,
-               .vsync_len      = 4,
-               .upper_margin   = 4,
-               .lower_margin   = 4,
-               .refresh        = 60,
-       },
-       .panel[1].timing   = {
-               .xres           = 1280,
-               .yres           = 720,
-               .hsync_len      = 4,
-               .left_margin    = 0x4,
-               .right_margin   = 0x4,
-               .vsync_len      = 4,
-               .upper_margin   = 4,
-               .lower_margin   = 4,
-               .refresh        = 60,
-       },
-       .panel[2].timing   = {
-               .xres           = -1,
-               .yres           = -1,
+       .panel = {
+               .timing   = {
+                       .xres           = 1280,
+                       .yres           = 800,
+                       .hsync_len      = 4,
+                       .left_margin    = 0x4,
+                       .right_margin   = 0x4,
+                       .vsync_len      = 4,
+                       .upper_margin   = 4,
+                       .lower_margin   = 4,
+                       .refresh        = 60,
+               },
        },
        .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
        .vidcon1        = VIDCON1_INV_VCLK,
@@ -341,6 +328,8 @@ static struct platform_device exynos_drm_device = {
        }
 };
 
+static void exynos_wifi_bt_set_power(u32, u32);        /* TODO(sleffler) hack */
+
 static void lcd_set_power(struct plat_lcd_data *pd,
                        unsigned int power)
 {
@@ -389,6 +378,7 @@ static void lcd_set_power(struct plat_lcd_data *pd,
                /* Wait 10 ms between regulator on and PWM start per spec */
                mdelay(10);
        }
+       exynos_wifi_bt_set_power(0, power);     /* TODO(sleffler) hack */
 }
 
 static int smdk5250_match_fb(struct plat_lcd_data *pd, struct fb_info *info)
@@ -555,6 +545,8 @@ static struct dwc3_exynos_data smdk5250_xhci_pdata = {
        .phy_type = S5P_USB_PHY_DRD,
        .phy_init = s5p_usb_phy_init,
        .phy_exit = s5p_usb_phy_exit,
+       .phyclk_switch = exynos5_dwc_phyclk_switch,
+       .use_ext_clk = s5p_usb_phy_use_ext_clk,
 };
 
 struct exynos_gpio_cfg {
@@ -568,7 +560,7 @@ static const char *rclksrc[] = {
        [1] = "i2sclk",
 };
 
-static struct video_info smdk5250_dp_config = {
+static struct video_info ptn3460_dp_config = {
        .name                   = "eDP-LVDS NXP PTN3460",
 
        .h_sync_polarity        = 0,
@@ -584,41 +576,29 @@ static struct video_info smdk5250_dp_config = {
        .lane_count             = LANE_COUNT2,
 };
 
-static void get_dp_bridge_gpios(int *pd_n_gpio, int *rst_n_gpio)
-{
-       struct device_node *np;
-
-       np = of_find_compatible_node(NULL, NULL, "nxp,ptn3460");
-       *pd_n_gpio = np ? of_get_named_gpio(np, "pd_n_gpio", 0) : -1;
-       *rst_n_gpio = np ? of_get_named_gpio(np, "rst_n_gpio", 0) : -1;
-}
-
-static void dp_phy_init(void)
-{
-       int pd_n_gpio, rst_n_gpio;
-
-       get_dp_bridge_gpios(&pd_n_gpio, &rst_n_gpio);
-       if (pd_n_gpio >= 0)
-               gpio_set_value(pd_n_gpio, 1);
+static struct video_info ps8622_dp_config = {
+       .name                   = "eDP-LVDS Parade PS8622",
 
-       if (rst_n_gpio >= 0) {
-               gpio_set_value(rst_n_gpio, 0);
-               udelay(10);
-               gpio_set_value(rst_n_gpio, 1);
-       }
+       .h_sync_polarity        = 0,
+       .v_sync_polarity        = 0,
+       .interlaced             = 0,
 
-       /* This really sucks, but we can't trust HPD from the bridge */
-       if (pd_n_gpio >= 0)
-               msleep(90);
+       .color_space            = COLOR_RGB,
+       .dynamic_range          = VESA,
+       .ycbcr_coeff            = COLOR_YCBCR601,
+       .color_depth            = COLOR_8,
 
-       s5p_dp_phy_init();
-}
+       .link_rate              = LINK_RATE_2_70GBPS,
+       .lane_count             = LANE_COUNT1,
+};
 
 static struct exynos_dp_platdata smdk5250_dp_data = {
-       .video_info     = &smdk5250_dp_config,
-       .training_type  = SW_LINK_TRAINING,
-       .phy_init       = dp_phy_init,
-       .phy_exit       = s5p_dp_phy_exit,
+       .video_info             = &ptn3460_dp_config,
+       .training_type          = SW_LINK_TRAINING,
+       .hpd_gpio               = -ENODEV,
+       .force_connected        = true,
+       .phy_init               = s5p_dp_phy_init,
+       .phy_exit               = s5p_dp_phy_exit,
 };
 
 #define S5P_PMU_DEBUG                          S5P_PMUREG(0x0A00)
@@ -678,16 +658,149 @@ static struct s3c_audio_pdata i2sv5_pdata = {
        },
 };
 
-static struct resource exynos5_adc_resource[] = {
-       [0] = DEFINE_RES_MEM(EXYNOS5_PA_ADC, SZ_256),
-       [1] = DEFINE_RES_IRQ(EXYNOS5_IRQ_ADC0),
+/*
+ * Hack to do power-on sequence after the 32khz SLP_CLK is
+ * running as doing this entirely in the DT is problematic.
+ * We attach an auxdata record to dw_mmc2 with a set_power
+ * method that frobs the regulators.  This work is not board
+ * specific but must be done before the device is recognized
+ * so cannot go in the driver.
+ */
+static bool enable_mwi87xx(void)
+{
+       struct regulator *wifi_en, *wifi_rst;
+       bool ok;
+
+       wifi_en = regulator_get(NULL, "wifi-en");
+       wifi_rst = regulator_get(NULL, "wifi-rst-l");
+       ok = !IS_ERR(wifi_en) && !IS_ERR(wifi_rst);
+       if (ok) {
+               /*
+                * This assumes SLP_CLK is enabled and stable by the
+                * time we get here.  Also any delay required between
+                * RESETn and PDn should be set in startup-delay-us
+                * in the DT.
+                */
+               regulator_enable(wifi_rst);
+               regulator_enable(wifi_en);
+       }
+
+       if (!IS_ERR(wifi_rst))
+               regulator_put(wifi_rst);
+       if (!IS_ERR(wifi_en))
+               regulator_put(wifi_en);
+       return ok;
+}
+
+static void exynos_wifi_bt_set_power(u32 slot_id, u32 volt)
+{
+       if (volt == 0 || (!of_machine_is_compatible("google,snow") &&
+                         !of_machine_is_compatible("google,spring") &&
+                         !of_machine_is_compatible("google,daisy")))
+               return;
+       if (!enable_mwi87xx())
+               pr_err("%s: problem enabling WiFi+BT\n", __func__);
+       /* NB: bt-reset-l is tied to wifi-rst-l so BT should be ready too */
+}
+
+
+/* NTC Thermistor. Attached to S3C-ADC in some Samsung SoC Devices */
+struct s3c_adc_client *ntc_adc_clients[4];
+struct mutex ntc_adc_locks[] = {
+       __MUTEX_INITIALIZER(ntc_adc_locks[0]),
+       __MUTEX_INITIALIZER(ntc_adc_locks[1]),
+       __MUTEX_INITIALIZER(ntc_adc_locks[2]),
+       __MUTEX_INITIALIZER(ntc_adc_locks[3]),
 };
 
-struct platform_device exynos5_device_adc = {
-       .name           = "samsung-adc-v4",
-       .id             = -1,
-       .num_resources  = ARRAY_SIZE(exynos5_adc_resource),
-       .resource       = exynos5_adc_resource,
+static int __init s3c_adc_ntc_init(struct platform_device *pdev)
+{
+       struct s3c_adc_client *ntc_adc_client;
+
+       ntc_adc_client = s3c_adc_register(pdev, NULL, NULL, 0);
+       if (IS_ERR(ntc_adc_client))
+               return PTR_ERR(ntc_adc_client);
+
+       ntc_adc_clients[pdev->id] = ntc_adc_client;
+
+       return 0;
+}
+
+/*
+ * read_thermistor_uV: is a call back from ntc_thermistor driver.
+ * returns the temperature of the thermistor in celsius
+ */
+static int read_thermistor_uV(struct platform_device *pdev)
+{
+       static unsigned int ntc_adc_ports[] = {3, 4, 5, 6};
+       s64 converted;
+       unsigned int port = ntc_adc_ports[pdev->id];
+       struct s3c_adc_client *client = ntc_adc_clients[pdev->id];
+       struct ntc_thermistor_platform_data *pdata = pdev->dev.platform_data;
+       struct mutex *lock = ntc_adc_locks + pdev->id;
+       int ret;
+
+       /* Arrays are sized; make sure we haven't blown over */
+       BUG_ON(pdev->id >= ARRAY_SIZE(ntc_adc_locks));
+
+       /*
+        * s3c_adc_read() assumes two processes aren't using the same client
+        * at the same time (yes, it's a bad design), so grab a per-client
+        * mutex to ensure this is OK.
+        */
+       mutex_lock(lock);
+       ret = s3c_adc_read(client, port);
+       mutex_unlock(lock);
+
+       if (ret < 0) {
+               dev_warn(&pdev->dev, "Thermistor read err: 0x%08x\n", ret);
+               return ret;
+       }
+
+       converted = pdata->pullup_uV * (s64) ret;
+       converted >>= 12;
+
+       return (int) converted;
+}
+
+static struct ntc_thermistor_platform_data ntc_adc_pdata = {
+       .read_uV        = read_thermistor_uV,
+       .pullup_uV      = 1800000, /* voltage of vdd for ADC */
+       .pullup_ohm     = 47000,
+       .pulldown_ohm   = 0,
+       .connect        = NTC_CONNECTED_GROUND,
+};
+
+struct platform_device s3c_device_adc_ntc_thermistor0 = {
+       .name                   = "ncp15wb473",
+       .id                     = 0,
+       .dev                    = {
+               .platform_data = &ntc_adc_pdata,
+       },
+};
+
+struct platform_device s3c_device_adc_ntc_thermistor1 = {
+       .name                   = "ncp15wb473",
+       .id                     = 1,
+       .dev                    = {
+       .platform_data = &ntc_adc_pdata,
+       },
+};
+
+struct platform_device s3c_device_adc_ntc_thermistor2 = {
+       .name                   = "ncp15wb473",
+       .id                     = 2,
+       .dev                    = {
+               .platform_data = &ntc_adc_pdata,
+       },
+};
+
+struct platform_device s3c_device_adc_ntc_thermistor3 = {
+       .name                   = "ncp15wb473",
+       .id                     = 3,
+       .dev                    = {
+               .platform_data = &ntc_adc_pdata,
+       },
 };
 
 /*
@@ -806,8 +919,17 @@ static const struct of_dev_auxdata exynos5250_auxdata_lookup[] __initconst = {
        {},
 };
 
+#ifdef CONFIG_BUSFREQ_OPP
+/* BUSFREQ to control memory/bus*/
+static struct device_domain busfreq;
+
+static struct platform_device exynos5_busfreq = {
+       .id = -1,
+       .name = "exynos-busfreq",
+};
+#endif
+
 static struct platform_device *smdk5250_devices[] __initdata = {
-       &exynos5_device_adc,
        &smdk5250_lcd, /* for platform_lcd device */
        &exynos_device_md0, /* for media device framework */
        &exynos_device_md1, /* for media device framework */
@@ -817,6 +939,16 @@ static struct platform_device *smdk5250_devices[] __initdata = {
 #ifdef CONFIG_DRM_EXYNOS_HDMI
        &exynos_drm_hdmi_device,
 #endif
+#ifdef CONFIG_BUSFREQ_OPP
+       &exynos5_busfreq,
+#endif
+};
+
+static struct platform_device *thermistor_devices[] __initdata = {
+       &s3c_device_adc_ntc_thermistor0,
+       &s3c_device_adc_ntc_thermistor1,
+       &s3c_device_adc_ntc_thermistor2,
+       &s3c_device_adc_ntc_thermistor3,
 };
 
 static struct regulator_consumer_supply dummy_supplies[] = {
@@ -878,6 +1010,7 @@ static void __init exynos5_reserve(void)
        init_consistent_dma_size(SZ_64M);
 
        exynos5_ramoops_reserve();
+       bitfix_reserve();
 }
 
 static void s5p_tv_setup(void)
@@ -899,7 +1032,6 @@ static void exynos5_i2c_setup(void)
 static void __init exynos5250_dt_machine_init(void)
 {
        struct device_node *srom_np, *np;
-       int ret,i;
 
        regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
 
@@ -918,14 +1050,26 @@ static void __init exynos5250_dt_machine_init(void)
        }
 
        /*
-        * Request lcd_bl_en GPIO for smdk5250_bl_notify().
-        * TODO: Fix this so we are not at risk of requesting the GPIO
-        * multiple times, this should be done with device tree, and
-        * likely integrated into the plat-samsung/dev-backlight.c init.
+        * Set the backlight on LCD_PWM pin only for boards not using the
+        * Parade eDP bridge which has an internal PWN for the backlight.
         */
-       gpio_request_one(EXYNOS5_GPX3(0), GPIOF_OUT_INIT_LOW, "lcd_bl_en");
+       if (!of_find_compatible_node(NULL, NULL, "parade,ps8622")) {
+               if (of_machine_is_compatible("google,snow")) {
+                       smdk5250_bl_data.max_brightness = 2800;
+                       smdk5250_bl_data.dft_brightness = 2800;
+               }
+
+               /*
+                * Request lcd_bl_en GPIO for smdk5250_bl_notify().
+                * TODO: Fix this so we are not at risk of requesting the GPIO
+                * multiple times, this should be done with device tree, and
+                * likely integrated into the plat-samsung/dev-backlight.c init.
+                */
+               gpio_request_one(EXYNOS5_GPX3(0), GPIOF_OUT_INIT_HIGH,
+                                "lcd_bl_en");
 
-       samsung_bl_set(&smdk5250_bl_gpio_info, &smdk5250_bl_data);
+               samsung_bl_set(&smdk5250_bl_gpio_info, &smdk5250_bl_data);
+       }
 
        /*
         * HACK ALERT! TODO: FIXME!
@@ -937,12 +1081,8 @@ static void __init exynos5250_dt_machine_init(void)
 
        if (of_machine_is_compatible("google,daisy")) {
 #ifdef CONFIG_DRM_EXYNOS_FIMD
-               smdk5250_lcd1_pdata.panel[0].timing.xres = 1366;
-               smdk5250_lcd1_pdata.panel[0].timing.yres = 768;
-               smdk5250_lcd1_pdata.panel[1].timing.xres = 1280;
-               smdk5250_lcd1_pdata.panel[1].timing.yres = 720;
-               smdk5250_lcd1_pdata.panel[2].timing.xres = -1;
-               smdk5250_lcd1_pdata.panel[2].timing.yres = -1;
+               smdk5250_lcd1_pdata.panel.timing.xres = 1366;
+               smdk5250_lcd1_pdata.panel.timing.yres = 768;
                smdk5250_lcd1_pdata.panel_type = MIPI_LCD;
 #else
                smdk5250_fb_win0.win_mode.xres = 1366;
@@ -962,27 +1102,28 @@ static void __init exynos5250_dt_machine_init(void)
 #endif
                dsim_lcd_info.lcd_size.width = 1366;
                dsim_lcd_info.lcd_size.height = 768;
-       } else if (of_machine_is_compatible("google,snow")) {
-               int pd_n_gpio, rst_n_gpio;
+       } else if ((of_machine_is_compatible("google,snow")) ||
+                  (of_machine_is_compatible("google,spring"))) {
 #ifdef CONFIG_DRM_EXYNOS_FIMD
-               for (i = 0;i < ARRAY_SIZE(snow_fb_window);i++)
-                       smdk5250_lcd1_pdata.panel[i].timing = snow_fb_window[i];
+               smdk5250_lcd1_pdata.panel.timing = snow_fb_window;
 
                smdk5250_lcd1_pdata.panel_type = DP_LCD;
-               smdk5250_lcd1_pdata.clock_rate = 267 * 1000 * 1000;
                smdk5250_lcd1_pdata.vidcon1 = 0;
+               smdk5250_lcd1_pdata.clock_rate =
+                       smdk5250_lcd1_pdata.panel.timing.pixclock;
 #endif
+       }
 
-               get_dp_bridge_gpios(&pd_n_gpio, &rst_n_gpio);
-               if (pd_n_gpio >= 0) {
-                       ret = gpio_request_one(pd_n_gpio, GPIOF_OUT_INIT_HIGH,
-                                               "DP_PD_N");
-                       WARN_ON(ret);
-               }
-               if (rst_n_gpio >= 0) {
-                       ret = gpio_request_one(rst_n_gpio, GPIOF_OUT_INIT_HIGH,
-                                               "DP_RST_N");
-                       WARN_ON(ret);
+       /* put the DP output configuration matching the eDP-LVDS bridge */
+       if (of_find_compatible_node(NULL, NULL, "nxp,ptn3460")) {
+               smdk5250_dp_data.video_info = &ptn3460_dp_config;
+       } else {
+               struct device_node *node =
+                       of_find_compatible_node(NULL, NULL, "parade,ps8622");
+               if (node) {
+                       smdk5250_dp_data.video_info = &ps8622_dp_config;
+                       smdk5250_dp_data.hpd_gpio =
+                               of_get_named_gpio(node, "hpd-gpio", 0);
                }
        }
 
@@ -1037,9 +1178,28 @@ static void __init exynos5250_dt_machine_init(void)
 #endif
        s5p_tv_setup();
 
-       /* Enable power to ADC */
-       __raw_writel(0x1, S5P_ADC_PHY_CONTROL);
+       np = of_find_compatible_node(NULL, NULL, "samsung,exynos5-adc");
+       if (np && of_device_is_available(np)) {
+               /* Enable power to ADC */
+               __raw_writel(0x1, S5P_ADC_PHY_CONTROL);
+
+               s3c_adc_ntc_init(&s3c_device_adc_ntc_thermistor0);
+               s3c_adc_ntc_init(&s3c_device_adc_ntc_thermistor1);
+               s3c_adc_ntc_init(&s3c_device_adc_ntc_thermistor2);
+               s3c_adc_ntc_init(&s3c_device_adc_ntc_thermistor3);
 
+               platform_add_devices(thermistor_devices,
+                                    ARRAY_SIZE(thermistor_devices));
+       }
+
+#ifdef CONFIG_BUSFREQ_OPP
+       dev_add(&busfreq, &exynos5_busfreq.dev);
+       ppmu_init(&exynos_ppmu[PPMU_CPU], &exynos5_busfreq.dev);
+       ppmu_init(&exynos_ppmu[PPMU_DDR_C], &exynos5_busfreq.dev);
+       ppmu_init(&exynos_ppmu[PPMU_DDR_R1], &exynos5_busfreq.dev);
+       ppmu_init(&exynos_ppmu[PPMU_DDR_L], &exynos5_busfreq.dev);
+       ppmu_init(&exynos_ppmu[PPMU_RIGHT0_BUS], &exynos5_busfreq.dev);
+#endif
        platform_add_devices(smdk5250_devices, ARRAY_SIZE(smdk5250_devices));
 out:
        of_node_put(srom_np);