[ARM] pxa/saar: add support for the on-board smart panel LCD
Signed-off-by: Eric Miao <eric.miao@marvell.com>
diff --git a/arch/arm/mach-pxa/saar.c b/arch/arm/mach-pxa/saar.c
index e7ea91c..5d02a73 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 @@
},
};
+#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)")