diff options
Diffstat (limited to 'packages/linux/linux-omap-pm/0008-DSS-Hacked-N810-support.patch')
| -rw-r--r-- | packages/linux/linux-omap-pm/0008-DSS-Hacked-N810-support.patch | 1076 |
1 files changed, 1076 insertions, 0 deletions
diff --git a/packages/linux/linux-omap-pm/0008-DSS-Hacked-N810-support.patch b/packages/linux/linux-omap-pm/0008-DSS-Hacked-N810-support.patch new file mode 100644 index 0000000000..e2f21699b9 --- /dev/null +++ b/packages/linux/linux-omap-pm/0008-DSS-Hacked-N810-support.patch @@ -0,0 +1,1076 @@ +From a36dfe9ce6faa6a13bb82b3039856d8aa1528dc2 Mon Sep 17 00:00:00 2001 +From: Tomi Valkeinen <tomi.valkeinen@nokia.com> +Date: Thu, 18 Dec 2008 15:37:42 +0200 +Subject: [PATCH] DSS: Hacked N810 support + +--- + arch/arm/mach-omap2/board-n800.c | 214 ++++++++++++++--- + drivers/video/omap2/Kconfig | 10 + + drivers/video/omap2/Makefile | 3 + + drivers/video/omap2/ctrl-blizzard.c | 279 ++++++++++++++++++++++ + drivers/video/omap2/panel-n800.c | 437 +++++++++++++++++++++++++++++++++++ + 5 files changed, 905 insertions(+), 38 deletions(-) + create mode 100644 drivers/video/omap2/ctrl-blizzard.c + create mode 100644 drivers/video/omap2/panel-n800.c + +diff --git a/arch/arm/mach-omap2/board-n800.c b/arch/arm/mach-omap2/board-n800.c +index b38b295..ffa5aad 100644 +--- a/arch/arm/mach-omap2/board-n800.c ++++ b/arch/arm/mach-omap2/board-n800.c +@@ -40,6 +40,7 @@ + #include <mach/gpio-switch.h> + #include <mach/omapfb.h> + #include <mach/blizzard.h> ++#include <mach/display.h> + + #include <../drivers/cbus/tahvo.h> + #include <../drivers/media/video/tcm825x.h> +@@ -156,23 +157,175 @@ static struct omap_uart_config n800_uart_config __initdata = { + + #include "../../../drivers/cbus/retu.h" + +-static struct omap_fbmem_config n800_fbmem0_config __initdata = { +- .size = 752 * 1024, ++static struct omap_tmp105_config n800_tmp105_config __initdata = { ++ .tmp105_irq_pin = 125, ++ .set_power = n800_tmp105_set_power, + }; + +-static struct omap_fbmem_config n800_fbmem1_config __initdata = { +- .size = 752 * 1024, +-}; + +-static struct omap_fbmem_config n800_fbmem2_config __initdata = { +- .size = 752 * 1024, ++ ++ ++/* DISPLAY */ ++static struct { ++ struct clk *sys_ck; ++} blizzard; ++ ++static int blizzard_get_clocks(void) ++{ ++ blizzard.sys_ck = clk_get(0, "osc_ck"); ++ if (IS_ERR(blizzard.sys_ck)) { ++ printk(KERN_ERR "can't get Blizzard clock\n"); ++ return PTR_ERR(blizzard.sys_ck); ++ } ++ return 0; ++} ++ ++static unsigned long blizzard_get_clock_rate(void) ++{ ++ return clk_get_rate(blizzard.sys_ck); ++} ++ ++static int n800_pn800_enable(struct omap_display *display) ++{ ++ if (display->hw_config.panel_reset_gpio != -1) { ++ printk("enabling panel gpio\n"); ++ gpio_direction_output(display->hw_config.panel_reset_gpio, 1); ++ } ++ ++ return 0; ++} ++ ++static void n800_pn800_disable(struct omap_display *display) ++{ ++ if (display->hw_config.panel_reset_gpio != -1) { ++ printk("disabling panel gpio\n"); ++ gpio_direction_output(display->hw_config.panel_reset_gpio, 0); ++ msleep(120); ++ } ++} ++ ++static int n800_blizzard_enable(struct omap_display *display) ++{ ++ printk("enabling bliz powers\n"); ++ ++ /* Vcore to 1.475V */ ++ tahvo_set_clear_reg_bits(0x07, 0, 0xf); ++ msleep(10); ++ ++ clk_enable(blizzard.sys_ck); ++ ++ if (display->hw_config.ctrl_reset_gpio != -1) ++ gpio_direction_output(display->hw_config.ctrl_reset_gpio, 1); ++ ++ printk("osc_ck %lu\n", blizzard_get_clock_rate()); ++ ++ return 0; ++} ++ ++static void n800_blizzard_disable(struct omap_display *display) ++{ ++ printk("disabling bliz powers\n"); ++ ++ if (display->hw_config.ctrl_reset_gpio != -1) ++ gpio_direction_output(display->hw_config.ctrl_reset_gpio, 0); ++ ++ clk_disable(blizzard.sys_ck); ++ ++ /* Vcore to 1.005V */ ++ tahvo_set_clear_reg_bits(0x07, 0xf, 0); ++} ++ ++static int n800_set_backlight_level(struct omap_display *display, int level) ++{ ++ return 0; ++} ++ ++static struct omap_display_data n800_dsi_display_data = { ++ .type = OMAP_DISPLAY_TYPE_DBI, ++ .name = "lcd", ++ .ctrl_name = "ctrl-blizzard", ++ .panel_name = "panel-pn800", ++ .panel_reset_gpio = -1, ++ .ctrl_reset_gpio = N800_BLIZZARD_POWERDOWN_GPIO, ++ .panel_enable = n800_pn800_enable, ++ .panel_disable = n800_pn800_disable, ++ .ctrl_enable = n800_blizzard_enable, ++ .ctrl_disable = n800_blizzard_disable, ++ .set_backlight = n800_set_backlight_level, ++ .u.rfbi = { ++ .channel = 0, ++ /* 8 for cmd mode, 16 for pixel data. ctrl-blizzard handles switching */ ++ .data_lines = 8, ++ }, ++ .priv = 0, // XXX used for panel datalines ++}; ++static struct omap_dss_platform_data n800_dss_data = { ++ .num_displays = 1, ++ .displays = { ++ &n800_dsi_display_data, ++ }, + }; + +-static struct omap_tmp105_config n800_tmp105_config __initdata = { +- .tmp105_irq_pin = 125, +- .set_power = n800_tmp105_set_power, ++static struct platform_device n800_dss_device = { ++ .name = "omap-dss", ++ .id = -1, ++ .dev = { ++ .platform_data = &n800_dss_data, ++ }, + }; + ++static void __init n800_display_init(void) ++{ ++ int r; ++ const struct omap_lcd_config *conf; ++ ++ conf = omap_get_config(OMAP_TAG_LCD, struct omap_lcd_config); ++ if (conf != NULL) { ++ n800_dsi_display_data.panel_reset_gpio = conf->nreset_gpio; ++ n800_dsi_display_data.priv = (void*)(u32)conf->data_lines; // XXX ++ //printk("\n\nTULI %d\n\n", conf->data_lines); ++ } else { ++ printk("\n\nEI TULLU MIOTÄÄÄ\n\n"); ++ } ++ ++ blizzard_get_clocks(); ++ clk_enable(blizzard.sys_ck); // XXX always enable ++ ++ //omapfb_set_ctrl_platform_data(&n800_blizzard_data); ++ // ++ if (n800_dsi_display_data.ctrl_reset_gpio != -1) { ++ r = gpio_request(n800_dsi_display_data.ctrl_reset_gpio, ++ "Blizzard pd"); ++ if (r < 0) { ++ n800_dsi_display_data.ctrl_reset_gpio = -1; ++ printk(KERN_ERR "Unable to get Blizzard GPIO\n"); ++ } else { ++ gpio_direction_output(n800_dsi_display_data.ctrl_reset_gpio, ++ 1); ++ // XXX always enable ++ } ++ } ++ ++ if (n800_dsi_display_data.panel_reset_gpio != -1) { ++ r = gpio_request(n800_dsi_display_data.panel_reset_gpio, ++ "panel reset"); ++ if (r < 0) { ++ n800_dsi_display_data.panel_reset_gpio = -1; ++ printk(KERN_ERR "Unable to get pn800 GPIO\n"); ++ } else { ++ gpio_direction_output(n800_dsi_display_data.panel_reset_gpio, ++ 1); ++ // XXX always enable ++ } ++ } ++} ++ ++/* DISPLAY END */ ++ ++ ++ ++ ++ + static void mipid_shutdown(struct mipid_platform_data *pdata) + { + if (pdata->nreset_gpio != -1) { +@@ -186,6 +339,7 @@ static struct mipid_platform_data n800_mipid_platform_data = { + .shutdown = mipid_shutdown, + }; + ++#if 0 + static void __init mipid_dev_init(void) + { + const struct omap_lcd_config *conf; +@@ -196,26 +350,9 @@ static void __init mipid_dev_init(void) + n800_mipid_platform_data.data_lines = conf->data_lines; + } + } ++#endif + +-static struct { +- struct clk *sys_ck; +-} blizzard; +- +-static int blizzard_get_clocks(void) +-{ +- blizzard.sys_ck = clk_get(0, "osc_ck"); +- if (IS_ERR(blizzard.sys_ck)) { +- printk(KERN_ERR "can't get Blizzard clock\n"); +- return PTR_ERR(blizzard.sys_ck); +- } +- return 0; +-} +- +-static unsigned long blizzard_get_clock_rate(struct device *dev) +-{ +- return clk_get_rate(blizzard.sys_ck); +-} +- ++#if 0 + static void blizzard_enable_clocks(int enable) + { + if (enable) +@@ -260,14 +397,12 @@ static void __init blizzard_dev_init(void) + gpio_direction_output(N800_BLIZZARD_POWERDOWN_GPIO, 1); + + blizzard_get_clocks(); +- omapfb_set_ctrl_platform_data(&n800_blizzard_data); ++ //omapfb_set_ctrl_platform_data(&n800_blizzard_data); + } ++#endif + + static struct omap_board_config_kernel n800_config[] __initdata = { + { OMAP_TAG_UART, &n800_uart_config }, +- { OMAP_TAG_FBMEM, &n800_fbmem0_config }, +- { OMAP_TAG_FBMEM, &n800_fbmem1_config }, +- { OMAP_TAG_FBMEM, &n800_fbmem2_config }, + { OMAP_TAG_TMP105, &n800_tmp105_config }, + }; + +@@ -374,7 +509,7 @@ static struct omap2_mcspi_device_config tsc2005_mcspi_config = { + + static struct spi_board_info n800_spi_board_info[] __initdata = { + { +- .modalias = "lcd_mipid", ++ .modalias = "panel-n800", + .bus_num = 1, + .chip_select = 1, + .max_speed_hz = 4000000, +@@ -399,7 +534,7 @@ static struct spi_board_info n800_spi_board_info[] __initdata = { + + static struct spi_board_info n810_spi_board_info[] __initdata = { + { +- .modalias = "lcd_mipid", ++ .modalias = "panel-n800", + .bus_num = 1, + .chip_select = 1, + .max_speed_hz = 4000000, +@@ -567,6 +702,7 @@ static struct platform_device *n800_devices[] __initdata = { + #if defined(CONFIG_CBUS_RETU) && defined(CONFIG_LEDS_OMAP_PWM) + &n800_keypad_led_device, + #endif ++ &n800_dss_device, + }; + + #ifdef CONFIG_MENELAUS +@@ -689,9 +825,10 @@ void __init nokia_n800_common_init(void) + if (machine_is_nokia_n810()) + i2c_register_board_info(2, n810_i2c_board_info_2, + ARRAY_SIZE(n810_i2c_board_info_2)); +- +- mipid_dev_init(); +- blizzard_dev_init(); ++ ++ //mipid_dev_init(); ++ //blizzard_dev_init(); ++ n800_display_init(); + } + + static void __init nokia_n800_init(void) +@@ -712,6 +849,7 @@ void __init nokia_n800_map_io(void) + omap_board_config_size = ARRAY_SIZE(n800_config); + + omap2_set_globals_242x(); ++ omap2_set_sdram_vram(800 * 480 * 2 * 3, 0); + omap2_map_common_io(); + } + +diff --git a/drivers/video/omap2/Kconfig b/drivers/video/omap2/Kconfig +index b54c955..4e9211e 100644 +--- a/drivers/video/omap2/Kconfig ++++ b/drivers/video/omap2/Kconfig +@@ -49,4 +49,14 @@ config PANEL_SHARP_LS037V7DW01 + help + LCD Panel used in TI's SDP3430 and EVM boards + ++config PANEL_N800 ++ tristate "panel n800" ++ help ++ N800 LCD ++ ++config CTRL_BLIZZARD ++ tristate "blizzard ctrl" ++ help ++ Blizzard Ctrl ++ + endmenu +diff --git a/drivers/video/omap2/Makefile b/drivers/video/omap2/Makefile +index fe6858e..7727f9c 100644 +--- a/drivers/video/omap2/Makefile ++++ b/drivers/video/omap2/Makefile +@@ -3,3 +3,6 @@ omapfb-y := omapfb-main.o omapfb-sysfs.o omapfb-ioctl.o + + obj-$(CONFIG_PANEL_GENERIC) += panel-generic.o + obj-$(CONFIG_PANEL_SHARP_LS037V7DW01) += panel-sharp-ls037v7dw01.o ++ ++obj-$(CONFIG_CTRL_BLIZZARD) += ctrl-blizzard.o ++obj-$(CONFIG_PANEL_N800) += panel-n800.o +diff --git a/drivers/video/omap2/ctrl-blizzard.c b/drivers/video/omap2/ctrl-blizzard.c +new file mode 100644 +index 0000000..e1e5569 +--- /dev/null ++++ b/drivers/video/omap2/ctrl-blizzard.c +@@ -0,0 +1,279 @@ ++ ++//#define DEBUG ++ ++#include <linux/kernel.h> ++#include <linux/module.h> ++#include <linux/clk.h> ++#include <linux/delay.h> ++#include <linux/err.h> ++ ++#include <mach/display.h> ++#include <mach/dma.h> ++ ++#ifdef DEBUG ++#define DBG(format, ...) printk(KERN_DEBUG "Blizzard: " format, ## __VA_ARGS__) ++#else ++#define DBG(format, ...) ++#endif ++ ++#define BLIZZARD_REV_CODE 0x00 ++#define BLIZZARD_CONFIG 0x02 ++#define BLIZZARD_PLL_DIV 0x04 ++#define BLIZZARD_PLL_LOCK_RANGE 0x06 ++#define BLIZZARD_PLL_CLOCK_SYNTH_0 0x08 ++#define BLIZZARD_PLL_CLOCK_SYNTH_1 0x0a ++#define BLIZZARD_PLL_MODE 0x0c ++#define BLIZZARD_CLK_SRC 0x0e ++#define BLIZZARD_MEM_BANK0_ACTIVATE 0x10 ++#define BLIZZARD_MEM_BANK0_STATUS 0x14 ++#define BLIZZARD_PANEL_CONFIGURATION 0x28 ++#define BLIZZARD_HDISP 0x2a ++#define BLIZZARD_HNDP 0x2c ++#define BLIZZARD_VDISP0 0x2e ++#define BLIZZARD_VDISP1 0x30 ++#define BLIZZARD_VNDP 0x32 ++#define BLIZZARD_HSW 0x34 ++#define BLIZZARD_VSW 0x38 ++#define BLIZZARD_DISPLAY_MODE 0x68 ++#define BLIZZARD_INPUT_WIN_X_START_0 0x6c ++#define BLIZZARD_DATA_SOURCE_SELECT 0x8e ++#define BLIZZARD_DISP_MEM_DATA_PORT 0x90 ++#define BLIZZARD_DISP_MEM_READ_ADDR0 0x92 ++#define BLIZZARD_POWER_SAVE 0xE6 ++#define BLIZZARD_NDISP_CTRL_STATUS 0xE8 ++ ++/* Data source select */ ++/* For S1D13745 */ ++#define BLIZZARD_SRC_WRITE_LCD_BACKGROUND 0x00 ++#define BLIZZARD_SRC_WRITE_LCD_DESTRUCTIVE 0x01 ++#define BLIZZARD_SRC_WRITE_OVERLAY_ENABLE 0x04 ++#define BLIZZARD_SRC_DISABLE_OVERLAY 0x05 ++/* For S1D13744 */ ++#define BLIZZARD_SRC_WRITE_LCD 0x00 ++#define BLIZZARD_SRC_BLT_LCD 0x06 ++ ++#define BLIZZARD_COLOR_RGB565 0x01 ++#define BLIZZARD_COLOR_YUV420 0x09 ++ ++#define BLIZZARD_VERSION_S1D13745 0x01 /* Hailstorm */ ++#define BLIZZARD_VERSION_S1D13744 0x02 /* Blizzard */ ++ ++#define BLIZZARD_AUTO_UPDATE_TIME (HZ / 20) ++ ++ ++ ++static struct { ++ int version; ++} blizzard; ++ ++ ++static inline void blizzard_cmd(u8 cmd) ++{ ++ omap_rfbi_write_command(&cmd, 1); ++} ++ ++static inline void blizzard_write(u8 cmd, const u8 *buf, int len) ++{ ++ omap_rfbi_write_command(&cmd, 1); ++ omap_rfbi_write_data(buf, len); ++} ++ ++static inline void blizzard_read(u8 cmd, u8 *buf, int len) ++{ ++ omap_rfbi_write_command(&cmd, 1); ++ omap_rfbi_read_data(buf, len); ++} ++ ++static u8 blizzard_read_reg(u8 cmd) ++{ ++ u8 data; ++ blizzard_read(cmd, &data, 1); ++ return data; ++} ++ ++static int blizzard_ctrl_init(struct omap_display *display) ++{ ++ DBG("blizzard_ctrl_init\n"); ++ ++ return 0; ++} ++ ++ ++static int blizzard_ctrl_enable(struct omap_display *display) ++{ ++ int r = 0; ++ u8 rev, conf; ++ ++ DBG("blizzard_ctrl_enable\n"); ++ ++ if (display->hw_config.ctrl_enable) { ++ r = display->hw_config.ctrl_enable(display); ++ if (r) ++ return r; ++ } ++ ++ msleep(100); ++ ++ rev = blizzard_read_reg(BLIZZARD_CLK_SRC); ++ printk("CLK_SRC %x\n", rev); ++ ++ rev = blizzard_read_reg(BLIZZARD_PLL_DIV); ++ printk("PLLDIV %x\n", rev); ++ ++ rev = blizzard_read_reg(BLIZZARD_REV_CODE); ++ conf = blizzard_read_reg(BLIZZARD_CONFIG); ++ ++ printk("rev %x, conf %x\n", rev, conf); ++ ++ switch (rev & 0xfc) { ++ case 0x9c: ++ blizzard.version = BLIZZARD_VERSION_S1D13744; ++ pr_info("omapfb: s1d13744 LCD controller rev %d " ++ "initialized (CNF pins %x)\n", rev & 0x03, conf & 0x07); ++ break; ++ case 0xa4: ++ blizzard.version = BLIZZARD_VERSION_S1D13745; ++ pr_info("omapfb: s1d13745 LCD controller rev %d " ++ "initialized (CNF pins %x)\n", rev & 0x03, conf & 0x07); ++ break; ++ default: ++ printk("invalid s1d1374x revision %02x\n", ++ rev); ++ r = -ENODEV; ++ } ++ ++ return r; ++} ++ ++static void blizzard_ctrl_disable(struct omap_display *display) ++{ ++ DBG("blizzard_ctrl_disable\n"); ++ ++ if (display->hw_config.ctrl_disable) ++ display->hw_config.ctrl_disable(display); ++} ++ ++int rfbi_configure(int rfbi_module, int bpp, int lines); ++ ++static void blizzard_ctrl_setup_update(struct omap_display *display, ++ int x, int y, int w, int h) ++{ ++ u8 tmp[18]; ++ int x_end, y_end; ++ ++ DBG("blizzard_ctrl_setup_update\n"); ++ ++ x_end = x + w - 1; ++ y_end = y + h - 1; ++ ++ tmp[0] = x; ++ tmp[1] = x >> 8; ++ tmp[2] = y; ++ tmp[3] = y >> 8; ++ tmp[4] = x_end; ++ tmp[5] = x_end >> 8; ++ tmp[6] = y_end; ++ tmp[7] = y_end >> 8; ++ ++ /* scaling? */ ++ tmp[8] = x; ++ tmp[9] = x >> 8; ++ tmp[10] = y; ++ tmp[11] = y >> 8; ++ tmp[12] = x_end; ++ tmp[13] = x_end >> 8; ++ tmp[14] = y_end; ++ tmp[15] = y_end >> 8; ++ ++ tmp[16] = BLIZZARD_COLOR_RGB565; //color_mode; ++ ++ if (blizzard.version == BLIZZARD_VERSION_S1D13745) ++ tmp[17] = BLIZZARD_SRC_WRITE_LCD_BACKGROUND; ++ else ++ tmp[17] = blizzard.version == BLIZZARD_VERSION_S1D13744 ? ++ BLIZZARD_SRC_WRITE_LCD : ++ BLIZZARD_SRC_WRITE_LCD_DESTRUCTIVE; ++ ++ rfbi_configure(display->hw_config.u.rfbi.channel, ++ 16, ++ 8); ++ ++ blizzard_write(BLIZZARD_INPUT_WIN_X_START_0, tmp, 18); ++ ++ rfbi_configure(display->hw_config.u.rfbi.channel, ++ 16, ++ 16); ++} ++ ++static int blizzard_ctrl_enable_te(struct omap_display *display, int enable) ++{ ++ return 0; ++} ++ ++static int blizzard_ctrl_rotate(struct omap_display *display, int rotate) ++{ ++ return 0; ++} ++ ++static int blizzard_ctrl_mirror(struct omap_display *display, int enable) ++{ ++ return 0; ++} ++ ++static int blizzard_run_test(struct omap_display *display, int test_num) ++{ ++ return 0; ++} ++ ++static struct omap_ctrl blizzard_ctrl = { ++ .owner = THIS_MODULE, ++ .name = "ctrl-blizzard", ++ .init = blizzard_ctrl_init, ++ .enable = blizzard_ctrl_enable, ++ .disable = blizzard_ctrl_disable, ++ .setup_update = blizzard_ctrl_setup_update, ++ .enable_te = blizzard_ctrl_enable_te, ++ .rotate = blizzard_ctrl_rotate, ++ .mirror = blizzard_ctrl_mirror, ++ .run_test = blizzard_run_test, ++ .pixel_size = 16, ++ ++ .timings = { ++ .cs_on_time = 0, ++ ++ .we_on_time = 9000, ++ .we_off_time = 18000, ++ .we_cycle_time = 36000, ++ ++ .re_on_time = 9000, ++ .re_off_time = 27000, ++ .re_cycle_time = 36000, ++ ++ .access_time = 27000, ++ .cs_off_time = 36000, ++ ++ .cs_pulse_width = 0, ++ }, ++}; ++ ++ ++static int __init blizzard_init(void) ++{ ++ DBG("blizzard_init\n"); ++ omap_dss_register_ctrl(&blizzard_ctrl); ++ return 0; ++} ++ ++static void __exit blizzard_exit(void) ++{ ++ DBG("blizzard_exit\n"); ++ ++ omap_dss_unregister_ctrl(&blizzard_ctrl); ++} ++ ++module_init(blizzard_init); ++module_exit(blizzard_exit); ++ ++MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@nokia.com>"); ++MODULE_DESCRIPTION("Blizzard Driver"); ++MODULE_LICENSE("GPL"); +diff --git a/drivers/video/omap2/panel-n800.c b/drivers/video/omap2/panel-n800.c +new file mode 100644 +index 0000000..3ae0a16 +--- /dev/null ++++ b/drivers/video/omap2/panel-n800.c +@@ -0,0 +1,437 @@ ++ ++/*#define DEBUG*/ ++ ++#include <linux/kernel.h> ++#include <linux/module.h> ++#include <linux/clk.h> ++#include <linux/platform_device.h> ++#include <linux/delay.h> ++#include <linux/spi/spi.h> ++#include <linux/jiffies.h> ++#include <linux/sched.h> ++#include <linux/backlight.h> ++#include <linux/fb.h> ++ ++#include <mach/display.h> ++#include <mach/dma.h> ++ ++#define MIPID_CMD_READ_DISP_ID 0x04 ++#define MIPID_CMD_READ_RED 0x06 ++#define MIPID_CMD_READ_GREEN 0x07 ++#define MIPID_CMD_READ_BLUE 0x08 ++#define MIPID_CMD_READ_DISP_STATUS 0x09 ++#define MIPID_CMD_RDDSDR 0x0F ++#define MIPID_CMD_SLEEP_IN 0x10 ++#define MIPID_CMD_SLEEP_OUT 0x11 ++#define MIPID_CMD_DISP_OFF 0x28 ++#define MIPID_CMD_DISP_ON 0x29 ++ ++#define MIPID_VER_LPH8923 3 ++#define MIPID_VER_LS041Y3 4 ++ ++#define MIPID_ESD_CHECK_PERIOD msecs_to_jiffies(5000) ++ ++#ifdef DEBUG ++#define DBG(format, ...) printk(KERN_DEBUG "PN800: " format, ## __VA_ARGS__) ++#else ++#define DBG(format, ...) ++#endif ++ ++struct pn800_device { ++ struct backlight_device *bl_dev; ++ int enabled; ++ int model; ++ int revision; ++ u8 display_id[3]; ++ unsigned int saved_bklight_level; ++ unsigned long hw_guard_end; /* next value of jiffies ++ when we can issue the ++ next sleep in/out command */ ++ unsigned long hw_guard_wait; /* max guard time in jiffies */ ++ ++ struct spi_device *spi; ++ struct mutex mutex; ++ struct omap_panel panel; ++ struct omap_display *display; ++}; ++ ++ ++static void pn800_transfer(struct pn800_device *md, int cmd, ++ const u8 *wbuf, int wlen, u8 *rbuf, int rlen) ++{ ++ struct spi_message m; ++ struct spi_transfer *x, xfer[4]; ++ u16 w; ++ int r; ++ ++ BUG_ON(md->spi == NULL); ++ ++ spi_message_init(&m); ++ ++ memset(xfer, 0, sizeof(xfer)); ++ x = &xfer[0]; ++ ++ cmd &= 0xff; ++ x->tx_buf = &cmd; ++ x->bits_per_word = 9; ++ x->len = 2; ++ spi_message_add_tail(x, &m); ++ ++ if (wlen) { ++ x++; ++ x->tx_buf = wbuf; ++ x->len = wlen; ++ x->bits_per_word = 9; ++ spi_message_add_tail(x, &m); ++ } ++ ++ if (rlen) { ++ x++; ++ x->rx_buf = &w; ++ x->len = 1; ++ spi_message_add_tail(x, &m); ++ ++ if (rlen > 1) { ++ /* Arrange for the extra clock before the first ++ * data bit. ++ */ ++ x->bits_per_word = 9; ++ x->len = 2; ++ ++ x++; ++ x->rx_buf = &rbuf[1]; ++ x->len = rlen - 1; ++ spi_message_add_tail(x, &m); ++ } ++ } ++ ++ r = spi_sync(md->spi, &m); ++ if (r < 0) ++ dev_dbg(&md->spi->dev, "spi_sync %d\n", r); ++ ++ if (rlen) ++ rbuf[0] = w & 0xff; ++} ++ ++static inline void pn800_cmd(struct pn800_device *md, int cmd) ++{ ++ pn800_transfer(md, cmd, NULL, 0, NULL, 0); ++} ++ ++static inline void pn800_write(struct pn800_device *md, ++ int reg, const u8 *buf, int len) ++{ ++ pn800_transfer(md, reg, buf, len, NULL, 0); ++} ++ ++static inline void pn800_read(struct pn800_device *md, ++ int reg, u8 *buf, int len) ++{ ++ pn800_transfer(md, reg, NULL, 0, buf, len); ++} ++ ++static void set_data_lines(struct pn800_device *md, int data_lines) ++{ ++ u16 par; ++ ++ switch (data_lines) { ++ case 16: ++ par = 0x150; ++ break; ++ case 18: ++ par = 0x160; ++ break; ++ case 24: ++ par = 0x170; ++ break; ++ } ++ pn800_write(md, 0x3a, (u8 *)&par, 2); ++} ++ ++static void send_init_string(struct pn800_device *md) ++{ ++ u16 initpar[] = { 0x0102, 0x0100, 0x0100 }; ++ int data_lines; ++ ++ pn800_write(md, 0xc2, (u8 *)initpar, sizeof(initpar)); ++ ++ data_lines = (int)md->display->hw_config.priv; // XXX ++ ++ set_data_lines(md, data_lines); ++} ++ ++static void hw_guard_start(struct pn800_device *md, int guard_msec) ++{ ++ md->hw_guard_wait = msecs_to_jiffies(guard_msec); ++ md->hw_guard_end = jiffies + md->hw_guard_wait; ++} ++ ++static void hw_guard_wait(struct pn800_device *md) ++{ ++ unsigned long wait = md->hw_guard_end - jiffies; ++ ++ if ((long)wait > 0 && wait <= md->hw_guard_wait) { ++ set_current_state(TASK_UNINTERRUPTIBLE); ++ schedule_timeout(wait); ++ } ++} ++ ++static void set_sleep_mode(struct pn800_device *md, int on) ++{ ++ int cmd, sleep_time = 50; ++ ++ if (on) ++ cmd = MIPID_CMD_SLEEP_IN; ++ else ++ cmd = MIPID_CMD_SLEEP_OUT; ++ hw_guard_wait(md); ++ pn800_cmd(md, cmd); ++ hw_guard_start(md, 120); ++ /* ++ * When we enable the panel, it seems we _have_ to sleep ++ * 120 ms before sending the init string. When disabling the ++ * panel we'll sleep for the duration of 2 frames, so that the ++ * controller can still provide the PCLK,HS,VS signals. */ ++ if (!on) ++ sleep_time = 120; ++ msleep(sleep_time); ++} ++ ++static void set_display_state(struct pn800_device *md, int enabled) ++{ ++ int cmd = enabled ? MIPID_CMD_DISP_ON : MIPID_CMD_DISP_OFF; ++ ++ pn800_cmd(md, cmd); ++} ++ ++static int panel_enabled(struct pn800_device *md) ++{ ++ u32 disp_status; ++ int enabled; ++ ++ pn800_read(md, MIPID_CMD_READ_DISP_STATUS, (u8 *)&disp_status, 4); ++ disp_status = __be32_to_cpu(disp_status); ++ enabled = (disp_status & (1 << 17)) && (disp_status & (1 << 10)); ++ dev_dbg(&md->spi->dev, ++ "LCD panel %s enabled by bootloader (status 0x%04x)\n", ++ enabled ? "" : "not ", disp_status); ++ DBG("status %#08x\n", disp_status); ++ return enabled; ++} ++ ++static int panel_detect(struct pn800_device *md) ++{ ++ pn800_read(md, MIPID_CMD_READ_DISP_ID, md->display_id, 3); ++ dev_dbg(&md->spi->dev, "MIPI display ID: %02x%02x%02x\n", ++ md->display_id[0], md->display_id[1], md->display_id[2]); ++ ++ switch (md->display_id[0]) { ++ case 0x45: ++ md->model = MIPID_VER_LPH8923; ++ md->panel.name = "lph8923"; ++ break; ++ case 0x83: ++ md->model = MIPID_VER_LS041Y3; ++ md->panel.name = "ls041y3"; ++ //md->esd_check = ls041y3_esd_check; ++ break; ++ default: ++ md->panel.name = "unknown"; ++ dev_err(&md->spi->dev, "invalid display ID\n"); ++ return -ENODEV; ++ } ++ ++ md->revision = md->display_id[1]; ++ pr_info("omapfb: %s rev %02x LCD detected\n", ++ md->panel.name, md->revision); ++ ++ return 0; ++} ++ ++ ++ ++static int pn800_panel_enable(struct omap_display *display) ++{ ++ int r; ++ struct pn800_device *md = ++ (struct pn800_device *)display->panel->priv; ++ ++ DBG("pn800_panel_enable\n"); ++ ++ mutex_lock(&md->mutex); ++ ++ if (display->hw_config.panel_enable) ++ display->hw_config.panel_enable(display); ++ ++ msleep(50); // wait for power up ++ ++ r = panel_detect(md); ++ if (r) { ++ mutex_unlock(&md->mutex); ++ return r; ++ } ++ ++ md->enabled = panel_enabled(md); ++ ++ if (md->enabled) { ++ DBG("panel already enabled\n"); ++ ; /*pn800_esd_start_check(md);*/ ++ } else { ++ ; /*md->saved_bklight_level = pn800_get_bklight_level(panel);*/ ++ } ++ ++ ++ if (md->enabled) { ++ mutex_unlock(&md->mutex); ++ return 0; ++ } ++ ++ set_sleep_mode(md, 0); ++ md->enabled = 1; ++ send_init_string(md); ++ set_display_state(md, 1); ++ //mipid_set_bklight_level(panel, md->saved_bklight_level); ++ //mipid_esd_start_check(md); ++ ++ mutex_unlock(&md->mutex); ++ return 0; ++} ++ ++static void pn800_panel_disable(struct omap_display *display) ++{ ++ struct pn800_device *md = ++ (struct pn800_device *)display->panel->priv; ++ ++ DBG("pn800_panel_disable\n"); ++ ++ mutex_lock(&md->mutex); ++ ++ if (!md->enabled) { ++ mutex_unlock(&md->mutex); ++ return; ++ } ++ /*md->saved_bklight_level = pn800_get_bklight_level(panel);*/ ++ /*pn800_set_bklight_level(panel, 0);*/ ++ ++ set_display_state(md, 0); ++ set_sleep_mode(md, 1); ++ md->enabled = 0; ++ ++ ++ if (display->hw_config.panel_disable) ++ display->hw_config.panel_disable(display); ++ ++ mutex_unlock(&md->mutex); ++} ++ ++static int pn800_panel_init(struct omap_display *display) ++{ ++ struct pn800_device *md = ++ (struct pn800_device *)display->panel->priv; ++ ++ DBG("pn800_panel_init\n"); ++ ++ mutex_init(&md->mutex); ++ md->display = display; ++ ++ return 0; ++} ++ ++static int pn800_run_test(struct omap_display *display, int test_num) ++{ ++ return 0; ++} ++ ++static struct omap_panel pn800_panel = { ++ .owner = THIS_MODULE, ++ .name = "panel-pn800", ++ .init = pn800_panel_init, ++ /*.remove = pn800_cleanup,*/ ++ .enable = pn800_panel_enable, ++ .disable = pn800_panel_disable, ++ //.set_mode = pn800_set_mode, ++ .run_test = pn800_run_test, ++ ++ .timings = { ++ .x_res = 800, ++ .y_res = 480, ++ ++ .pixel_clock = 21940, ++ .hsw = 50, ++ .hfp = 20, ++ .hbp = 15, ++ ++ .vsw = 2, ++ .vfp = 1, ++ .vbp = 3, ++ }, ++ .config = OMAP_DSS_LCD_TFT, ++ ++ .bpp = 16, ++}; ++ ++static int pn800_spi_probe(struct spi_device *spi) ++{ ++ struct pn800_device *md; ++ ++ DBG("pn800_spi_probe\n"); ++ ++ md = kzalloc(sizeof(*md), GFP_KERNEL); ++ if (md == NULL) { ++ dev_err(&spi->dev, "out of memory\n"); ++ return -ENOMEM; ++ } ++ ++ spi->mode = SPI_MODE_0; ++ md->spi = spi; ++ dev_set_drvdata(&spi->dev, md); ++ md->panel = pn800_panel; ++ pn800_panel.priv = md; ++ ++ omap_dss_register_panel(&pn800_panel); ++ ++ return 0; ++} ++ ++static int pn800_spi_remove(struct spi_device *spi) ++{ ++ struct pn800_device *md = dev_get_drvdata(&spi->dev); ++ ++ DBG("pn800_spi_remove\n"); ++ ++ omap_dss_unregister_panel(&pn800_panel); ++ ++ /*pn800_disable(&md->panel);*/ ++ kfree(md); ++ ++ return 0; ++} ++ ++static struct spi_driver pn800_spi_driver = { ++ .driver = { ++ .name = "panel-n800", ++ .bus = &spi_bus_type, ++ .owner = THIS_MODULE, ++ }, ++ .probe = pn800_spi_probe, ++ .remove = __devexit_p(pn800_spi_remove), ++}; ++ ++static int __init pn800_init(void) ++{ ++ DBG("pn800_init\n"); ++ return spi_register_driver(&pn800_spi_driver); ++} ++ ++static void __exit pn800_exit(void) ++{ ++ DBG("pn800_exit\n"); ++ spi_unregister_driver(&pn800_spi_driver); ++} ++ ++module_init(pn800_init); ++module_exit(pn800_exit); ++ ++MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@nokia.com>"); ++MODULE_DESCRIPTION("N800 LCD Driver"); ++MODULE_LICENSE("GPL"); +-- +1.5.6.3 + |