[ARM] pxa/saar: add support for the on-board smart panel LCD

Signed-off-by: Eric Miao <eric.miao@marvell.com>

1 files changed, 421 insertions, 0 deletions

diff --git a/arch/arm/mach-pxa/saar.c b/arch/arm/mach-pxa/saar.c
index e7ea91ce7f02..5d02a7325586 100644
--- a/arch/arm/mach-pxa/saar.c
+++ b/arch/arm/mach-pxa/saar.c
@@ -17,19 +17,44 @@
 #include <linux/platform_device.h>
 #include <linux/clk.h>
 #include <linux/gpio.h>
+#include <linux/delay.h>
+#include <linux/fb.h>
+#include <linux/i2c.h>
 #include <linux/smc91x.h>
+#include <linux/mfd/da903x.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 #include <mach/hardware.h>
 #include <mach/pxa3xx-regs.h>
 #include <mach/mfp-pxa930.h>
+#include <mach/i2c.h>
+#include <mach/regs-lcd.h>
+#include <mach/pxafb.h>
 
 #include "devices.h"
 #include "generic.h"
 
+#define GPIO_LCD_RESET  (16)
+
 /* SAAR MFP configurations */
 static mfp_cfg_t saar_mfp_cfg[] __initdata = {
+        /* LCD */
+        GPIO23_LCD_DD0,
+        GPIO24_LCD_DD1,
+        GPIO25_LCD_DD2,
+        GPIO26_LCD_DD3,
+        GPIO27_LCD_DD4,
+        GPIO28_LCD_DD5,
+        GPIO29_LCD_DD6,
+        GPIO44_LCD_DD7,
+        GPIO21_LCD_CS,
+        GPIO22_LCD_VSYNC,
+        GPIO17_LCD_FCLK_RD,
+        GPIO18_LCD_LCLK_A0,
+        GPIO19_LCD_PCLK_WR,
+        GPIO16_GPIO, /* LCD reset */
+
         /* Ethernet */
         DF_nCS1_nCS3,
         GPIO97_GPIO,
@@ -64,12 +89,408 @@ static struct platform_device smc91x_device = {
         },
 };
 
+#if defined(CONFIG_FB_PXA) || (CONFIG_FB_PXA_MODULE)
+static uint16_t lcd_power_on[] = {
+        /* single frame */
+        SMART_CMD_NOOP,
+        SMART_CMD(0x00),
+        SMART_DELAY(0),
+
+        SMART_CMD_NOOP,
+        SMART_CMD(0x00),
+        SMART_DELAY(0),
+
+        SMART_CMD_NOOP,
+        SMART_CMD(0x00),
+        SMART_DELAY(0),
+
+        SMART_CMD_NOOP,
+        SMART_CMD(0x00),
+        SMART_DELAY(10),
+
+        /* calibration control */
+        SMART_CMD(0x00),
+        SMART_CMD(0xA4),
+        SMART_DAT(0x80),
+        SMART_DAT(0x01),
+        SMART_DELAY(150),
+
+        /*Power-On Init sequence*/
+        SMART_CMD(0x00),        /* output ctrl */
+        SMART_CMD(0x01),
+        SMART_DAT(0x01),
+        SMART_DAT(0x00),
+        SMART_CMD(0x00),        /* wave ctrl */
+        SMART_CMD(0x02),
+        SMART_DAT(0x07),
+        SMART_DAT(0x00),
+        SMART_CMD(0x00),
+        SMART_CMD(0x03),        /* entry mode */
+        SMART_DAT(0xD0),
+        SMART_DAT(0x30),
+        SMART_CMD(0x00),
+        SMART_CMD(0x08),        /* display ctrl 2 */
+        SMART_DAT(0x08),
+        SMART_DAT(0x08),
+        SMART_CMD(0x00),
+        SMART_CMD(0x09),        /* display ctrl 3 */
+        SMART_DAT(0x04),
+        SMART_DAT(0x2F),
+        SMART_CMD(0x00),
+        SMART_CMD(0x0A),        /* display ctrl 4 */
+        SMART_DAT(0x00),
+        SMART_DAT(0x08),
+        SMART_CMD(0x00),
+        SMART_CMD(0x0D),        /* Frame Marker position */
+        SMART_DAT(0x00),
+        SMART_DAT(0x08),
+        SMART_CMD(0x00),
+        SMART_CMD(0x60),        /* Driver output control */
+        SMART_DAT(0x27),
+        SMART_DAT(0x00),
+        SMART_CMD(0x00),
+        SMART_CMD(0x61),        /* Base image display control */
+        SMART_DAT(0x00),
+        SMART_DAT(0x01),
+        SMART_CMD(0x00),
+        SMART_CMD(0x30),        /* Y settings 30h-3Dh */
+        SMART_DAT(0x07),
+        SMART_DAT(0x07),
+        SMART_CMD(0x00),
+        SMART_CMD(0x31),
+        SMART_DAT(0x00),
+        SMART_DAT(0x07),
+        SMART_CMD(0x00),
+        SMART_CMD(0x32),        /* Timing(3), ASW HOLD=0.5CLK */
+        SMART_DAT(0x04),
+        SMART_DAT(0x00),
+        SMART_CMD(0x00),
+        SMART_CMD(0x33),        /* Timing(4), CKV ST=0CLK, CKV ED=1CLK */
+        SMART_DAT(0x03),
+        SMART_DAT(0x03),
+        SMART_CMD(0x00),
+        SMART_CMD(0x34),
+        SMART_DAT(0x00),
+        SMART_DAT(0x00),
+        SMART_CMD(0x00),
+        SMART_CMD(0x35),
+        SMART_DAT(0x02),
+        SMART_DAT(0x05),
+        SMART_CMD(0x00),
+        SMART_CMD(0x36),
+        SMART_DAT(0x1F),
+        SMART_DAT(0x1F),
+        SMART_CMD(0x00),
+        SMART_CMD(0x37),
+        SMART_DAT(0x07),
+        SMART_DAT(0x07),
+        SMART_CMD(0x00),
+        SMART_CMD(0x38),
+        SMART_DAT(0x00),
+        SMART_DAT(0x07),
+        SMART_CMD(0x00),
+        SMART_CMD(0x39),
+        SMART_DAT(0x04),
+        SMART_DAT(0x00),
+        SMART_CMD(0x00),
+        SMART_CMD(0x3A),
+        SMART_DAT(0x03),
+        SMART_DAT(0x03),
+        SMART_CMD(0x00),
+        SMART_CMD(0x3B),
+        SMART_DAT(0x00),
+        SMART_DAT(0x00),
+        SMART_CMD(0x00),
+        SMART_CMD(0x3C),
+        SMART_DAT(0x02),
+        SMART_DAT(0x05),
+        SMART_CMD(0x00),
+        SMART_CMD(0x3D),
+        SMART_DAT(0x1F),
+        SMART_DAT(0x1F),
+        SMART_CMD(0x00),        /* Display control 1 */
+        SMART_CMD(0x07),
+        SMART_DAT(0x00),
+        SMART_DAT(0x01),
+        SMART_CMD(0x00),        /* Power control 5 */
+        SMART_CMD(0x17),
+        SMART_DAT(0x00),
+        SMART_DAT(0x01),
+        SMART_CMD(0x00),        /* Power control 1 */
+        SMART_CMD(0x10),
+        SMART_DAT(0x10),
+        SMART_DAT(0xB0),
+        SMART_CMD(0x00),        /* Power control 2 */
+        SMART_CMD(0x11),
+        SMART_DAT(0x01),
+        SMART_DAT(0x30),
+        SMART_CMD(0x00),        /* Power control 3 */
+        SMART_CMD(0x12),
+        SMART_DAT(0x01),
+        SMART_DAT(0x9E),
+        SMART_CMD(0x00),        /* Power control 4 */
+        SMART_CMD(0x13),
+        SMART_DAT(0x17),
+        SMART_DAT(0x00),
+        SMART_CMD(0x00),        /* Power control 3 */
+        SMART_CMD(0x12),
+        SMART_DAT(0x01),
+        SMART_DAT(0xBE),
+        SMART_DELAY(100),
+
+        /* display mode : 240*320 */
+        SMART_CMD(0x00),        /* RAM address set(H) 0*/
+        SMART_CMD(0x20),
+        SMART_DAT(0x00),
+        SMART_DAT(0x00),
+        SMART_CMD(0x00),        /* RAM address set(V)   4*/
+        SMART_CMD(0x21),
+        SMART_DAT(0x00),
+        SMART_DAT(0x00),
+        SMART_CMD(0x00),        /* Start of Window RAM address set(H) 8*/
+        SMART_CMD(0x50),
+        SMART_DAT(0x00),
+        SMART_DAT(0x00),
+        SMART_CMD(0x00),        /* End of Window RAM address set(H) 12*/
+        SMART_CMD(0x51),
+        SMART_DAT(0x00),
+        SMART_DAT(0xEF),
+        SMART_CMD(0x00),        /* Start of Window RAM address set(V) 16*/
+        SMART_CMD(0x52),
+        SMART_DAT(0x00),
+        SMART_DAT(0x00),
+        SMART_CMD(0x00),        /* End of Window RAM address set(V) 20*/
+        SMART_CMD(0x53),
+        SMART_DAT(0x01),
+        SMART_DAT(0x3F),
+        SMART_CMD(0x00),        /* Panel interface control 1 */
+        SMART_CMD(0x90),
+        SMART_DAT(0x00),
+        SMART_DAT(0x1A),
+        SMART_CMD(0x00),        /* Panel interface control 2 */
+        SMART_CMD(0x92),
+        SMART_DAT(0x04),
+        SMART_DAT(0x00),
+        SMART_CMD(0x00),        /* Panel interface control 3 */
+        SMART_CMD(0x93),
+        SMART_DAT(0x00),
+        SMART_DAT(0x05),
+        SMART_DELAY(20),
+};
+
+static uint16_t lcd_panel_on[] = {
+        SMART_CMD(0x00),
+        SMART_CMD(0x07),
+        SMART_DAT(0x00),
+        SMART_DAT(0x21),
+        SMART_DELAY(1),
+
+        SMART_CMD(0x00),
+        SMART_CMD(0x07),
+        SMART_DAT(0x00),
+        SMART_DAT(0x61),
+        SMART_DELAY(100),
+
+        SMART_CMD(0x00),
+        SMART_CMD(0x07),
+        SMART_DAT(0x01),
+        SMART_DAT(0x73),
+        SMART_DELAY(1),
+};
+
+static uint16_t lcd_panel_off[] = {
+        SMART_CMD(0x00),
+        SMART_CMD(0x07),
+        SMART_DAT(0x00),
+        SMART_DAT(0x72),
+        SMART_DELAY(40),
+
+        SMART_CMD(0x00),
+        SMART_CMD(0x07),
+        SMART_DAT(0x00),
+        SMART_DAT(0x01),
+        SMART_DELAY(1),
+
+        SMART_CMD(0x00),
+        SMART_CMD(0x07),
+        SMART_DAT(0x00),
+        SMART_DAT(0x00),
+        SMART_DELAY(1),
+};
+
+static uint16_t lcd_power_off[] = {
+        SMART_CMD(0x00),
+        SMART_CMD(0x10),
+        SMART_DAT(0x00),
+        SMART_DAT(0x80),
+
+        SMART_CMD(0x00),
+        SMART_CMD(0x11),
+        SMART_DAT(0x01),
+        SMART_DAT(0x60),
+
+        SMART_CMD(0x00),
+        SMART_CMD(0x12),
+        SMART_DAT(0x01),
+        SMART_DAT(0xAE),
+        SMART_DELAY(40),
+
+        SMART_CMD(0x00),
+        SMART_CMD(0x10),
+        SMART_DAT(0x00),
+        SMART_DAT(0x00),
+};
+
+static uint16_t update_framedata[] = {
+        /* set display ram: 240*320 */
+        SMART_CMD(0x00), /* RAM address set(H) 0*/
+        SMART_CMD(0x20),
+        SMART_DAT(0x00),
+        SMART_DAT(0x00),
+        SMART_CMD(0x00), /* RAM address set(V) 4*/
+        SMART_CMD(0x21),
+        SMART_DAT(0x00),
+        SMART_DAT(0x00),
+        SMART_CMD(0x00), /* Start of Window RAM address set(H) 8 */
+        SMART_CMD(0x50),
+        SMART_DAT(0x00),
+        SMART_DAT(0x00),
+        SMART_CMD(0x00), /* End of Window RAM address set(H) 12 */
+        SMART_CMD(0x51),
+        SMART_DAT(0x00),
+        SMART_DAT(0xEF),
+        SMART_CMD(0x00), /* Start of Window RAM address set(V) 16 */
+        SMART_CMD(0x52),
+        SMART_DAT(0x00),
+        SMART_DAT(0x00),
+        SMART_CMD(0x00), /* End of Window RAM address set(V) 20 */
+        SMART_CMD(0x53),
+        SMART_DAT(0x01),
+        SMART_DAT(0x3F),
+
+        /* wait for vsync cmd before transferring frame data */
+        SMART_CMD_WAIT_FOR_VSYNC,
+
+        /* write ram */
+        SMART_CMD(0x00),
+        SMART_CMD(0x22),
+
+        /* write frame data */
+        SMART_CMD_WRITE_FRAME,
+};
+
+static void ltm022a97a_lcd_power(int on, struct fb_var_screeninfo *var)
+{
+        static int pin_requested = 0;
+        struct fb_info *info = container_of(var, struct fb_info, var);
+        int err;
+
+        if (!pin_requested) {
+                err = gpio_request(GPIO_LCD_RESET, "lcd reset");
+                if (err) {
+                        pr_err("failed to request gpio for LCD reset\n");
+                        return;
+                }
+
+                gpio_direction_output(GPIO_LCD_RESET, 0);
+                pin_requested = 1;
+        }
+
+        if (on) {
+                gpio_set_value(GPIO_LCD_RESET, 0); msleep(100);
+                gpio_set_value(GPIO_LCD_RESET, 1); msleep(10);
+
+                pxafb_smart_queue(info, ARRAY_AND_SIZE(lcd_power_on));
+                pxafb_smart_queue(info, ARRAY_AND_SIZE(lcd_panel_on));
+        } else {
+                pxafb_smart_queue(info, ARRAY_AND_SIZE(lcd_panel_off));
+                pxafb_smart_queue(info, ARRAY_AND_SIZE(lcd_power_off));
+        }
+
+        err = pxafb_smart_flush(info);
+        if (err)
+                pr_err("%s: timed out\n", __func__);
+}
+
+static void ltm022a97a_update(struct fb_info *info)
+{
+        pxafb_smart_queue(info, ARRAY_AND_SIZE(update_framedata));
+        pxafb_smart_flush(info);
+}
+
+static struct pxafb_mode_info toshiba_ltm022a97a_modes[] = {
+        [0] = {
+                .xres                   = 240,
+                .yres                   = 320,
+                .bpp                    = 16,
+                .a0csrd_set_hld         = 30,
+                .a0cswr_set_hld         = 30,
+                .wr_pulse_width         = 30,
+                .rd_pulse_width         = 30,
+                .op_hold_time           = 30,
+                .cmd_inh_time           = 60,
+
+                /* L_LCLK_A0 and L_LCLK_RD active low */
+                .sync                   = FB_SYNC_HOR_HIGH_ACT |
+                                          FB_SYNC_VERT_HIGH_ACT,
+        },
+};
+
+static struct pxafb_mach_info saar_lcd_info = {
+        .modes                  = toshiba_ltm022a97a_modes,
+        .num_modes              = 1,
+        .lcd_conn               = LCD_SMART_PANEL_8BPP | LCD_PCLK_EDGE_FALL,
+        .pxafb_lcd_power        = ltm022a97a_lcd_power,
+        .smart_update           = ltm022a97a_update,
+};
+
+static void __init saar_init_lcd(void)
+{
+        set_pxa_fb_info(&saar_lcd_info);
+}
+#else
+static inline void saar_init_lcd(void) {}
+#endif
+
+#if defined(CONFIG_I2C_PXA) || defined(CONFIG_I2C_PXA_MODULE)
+static struct da903x_subdev_info saar_da9034_subdevs[] = {
+        [0] = {
+                .name           = "da903x-backlight",
+                .id             = DA9034_ID_WLED,
+        },
+};
+
+static struct da903x_platform_data saar_da9034_info = {
+        .num_subdevs    = ARRAY_SIZE(saar_da9034_subdevs),
+        .subdevs        = saar_da9034_subdevs,
+};
+
+static struct i2c_board_info saar_i2c_info[] = {
+        [0] = {
+                .type           = "da9034",
+                .addr           = 0x34,
+                .platform_data  = &saar_da9034_info,
+                .irq            = gpio_to_irq(mfp_to_gpio(MFP_PIN_GPIO83)),
+        },
+};
+
+static void __init saar_init_i2c(void)
+{
+        pxa_set_i2c_info(NULL);
+        i2c_register_board_info(0, ARRAY_AND_SIZE(saar_i2c_info));
+}
+#else
+static inline void saar_init_i2c(void) {}
+#endif
 static void __init saar_init(void)
 {
         /* initialize MFP configurations */
         pxa3xx_mfp_config(ARRAY_AND_SIZE(saar_mfp_cfg));
 
         platform_device_register(&smc91x_device);
+
+        saar_init_i2c();
+        saar_init_lcd();
 }
 
 MACHINE_START(SAAR, "PXA930 Handheld Platform (aka SAAR)")