[ARM] pxa/spitz: use SPI-based driver for ads7846, corgi-lcd and max1111
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c
index 075fd8d..8b06b7a 100644
--- a/arch/arm/mach-pxa/spitz.c
+++ b/arch/arm/mach-pxa/spitz.c
@@ -23,6 +23,9 @@
#include <linux/mmc/host.h>
#include <linux/pm.h>
#include <linux/backlight.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/ads7846.h>
+#include <linux/spi/corgi_lcd.h>
#include <asm/setup.h>
#include <asm/memory.h>
@@ -47,6 +50,7 @@
#include <mach/ohci.h>
#include <mach/udc.h>
#include <mach/pxafb.h>
+#include <mach/pxa2xx_spi.h>
#include <mach/akita.h>
#include <mach/spitz.h>
#include <mach/sharpsl.h>
@@ -237,64 +241,6 @@
EXPORT_SYMBOL(spitzscoop_device);
EXPORT_SYMBOL(spitzscoop2_device);
-
-/*
- * Spitz SSP Device
- *
- * Set the parent as the scoop device because a lot of SSP devices
- * also use scoop functions and this makes the power up/down order
- * work correctly.
- */
-struct platform_device spitzssp_device = {
- .name = "corgi-ssp",
- .dev = {
- .parent = &spitzscoop_device.dev,
- },
- .id = -1,
-};
-
-struct corgissp_machinfo spitz_ssp_machinfo = {
- .port = 2,
- .cs_lcdcon = SPITZ_GPIO_LCDCON_CS,
- .cs_ads7846 = SPITZ_GPIO_ADS7846_CS,
- .cs_max1111 = SPITZ_GPIO_MAX1111_CS,
- .clk_lcdcon = 520,
- .clk_ads7846 = 14,
- .clk_max1111 = 56,
-};
-
-
-/*
- * Spitz Backlight Device
- */
-static void spitz_bl_kick_battery(void)
-{
- void (*kick_batt)(void);
-
- kick_batt = symbol_get(sharpsl_battery_kick);
- if (kick_batt) {
- kick_batt();
- symbol_put(sharpsl_battery_kick);
- }
-}
-
-static struct generic_bl_info spitz_bl_machinfo = {
- .name = "corgi-bl",
- .default_intensity = 0x1f,
- .limit_mask = 0x0b,
- .max_intensity = 0x2f,
- .kick_battery = spitz_bl_kick_battery,
-};
-
-static struct platform_device spitzbl_device = {
- .name = "generic-bl",
- .dev = {
- .platform_data = &spitz_bl_machinfo,
- },
- .id = -1,
-};
-
-
/*
* Spitz Keyboard Device
*/
@@ -312,83 +258,150 @@
.id = -1,
};
-/*
- * Spitz Touch Screen Device
- */
+#if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
+static struct pxa2xx_spi_master spitz_spi_info = {
+ .num_chipselect = 3,
+};
-static unsigned long (*get_hsync_invperiod)(struct device *dev);
+static struct ads7846_platform_data spitz_ads7846_info = {
+ .model = 7846,
+ .vref_delay_usecs = 100,
+ .x_plate_ohms = 419,
+ .y_plate_ohms = 486,
+ .gpio_pendown = SPITZ_GPIO_TP_INT,
+};
-static void inline sharpsl_wait_sync(int gpio)
+static void spitz_ads7846_cs(u32 command)
{
- while((GPLR(gpio) & GPIO_bit(gpio)) == 0);
- while((GPLR(gpio) & GPIO_bit(gpio)) != 0);
+ gpio_set_value(SPITZ_GPIO_ADS7846_CS, !(command == PXA2XX_CS_ASSERT));
}
-static struct device *spitz_pxafb_dev;
+static struct pxa2xx_spi_chip spitz_ads7846_chip = {
+ .cs_control = spitz_ads7846_cs,
+};
-static int is_pxafb_device(struct device * dev, void * data)
+static void spitz_notify_intensity(int intensity)
{
- struct platform_device *pdev = container_of(dev, struct platform_device, dev);
+ if (machine_is_spitz() || machine_is_borzoi()) {
+ /* Bit 5 is via SCOOP */
+ if (intensity & 0x0020)
+ reset_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_BACKLIGHT_CONT);
+ else
+ set_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_BACKLIGHT_CONT);
- return (strncmp(pdev->name, "pxa2xx-fb", 9) == 0);
-}
-
-static unsigned long spitz_get_hsync_invperiod(void)
-{
-#ifdef CONFIG_FB_PXA
- if (!spitz_pxafb_dev) {
- spitz_pxafb_dev = bus_find_device(&platform_bus_type, NULL, NULL, is_pxafb_device);
- if (!spitz_pxafb_dev)
- return 0;
+ if (intensity)
+ set_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_BACKLIGHT_ON);
+ else
+ reset_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_BACKLIGHT_ON);
+ return;
}
- if (!get_hsync_invperiod)
- get_hsync_invperiod = symbol_get(pxafb_get_hsync_time);
- if (!get_hsync_invperiod)
+
+ if (machine_is_akita()) {
+ /* Bit 5 is via IO-Expander */
+ if (intensity & 0x0020)
+ akita_reset_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_BACKLIGHT_CONT);
+ else
+ akita_set_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_BACKLIGHT_CONT);
+
+ if (intensity)
+ akita_set_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_BACKLIGHT_ON);
+ else
+ akita_reset_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_BACKLIGHT_ON);
+ return;
+ }
+}
+
+static void spitz_bl_kick_battery(void)
+{
+ void (*kick_batt)(void);
+
+ kick_batt = symbol_get(sharpsl_battery_kick);
+ if (kick_batt) {
+ kick_batt();
+ symbol_put(sharpsl_battery_kick);
+ }
+}
+
+static struct corgi_lcd_platform_data spitz_lcdcon_info = {
+ .init_mode = CORGI_LCD_MODE_VGA,
+ .max_intensity = 0x2f,
+ .default_intensity = 0x1f,
+ .limit_mask = 0x0b,
+ .notify = spitz_notify_intensity,
+ .kick_battery = spitz_bl_kick_battery,
+};
+
+static void spitz_lcdcon_cs(u32 command)
+{
+ gpio_set_value(SPITZ_GPIO_LCDCON_CS, !(command == PXA2XX_CS_ASSERT));
+}
+
+static struct pxa2xx_spi_chip spitz_lcdcon_chip = {
+ .cs_control = spitz_lcdcon_cs,
+};
+
+static void spitz_max1111_cs(u32 command)
+{
+ gpio_set_value(SPITZ_GPIO_MAX1111_CS, !(command == PXA2XX_CS_ASSERT));
+}
+
+static struct pxa2xx_spi_chip spitz_max1111_chip = {
+ .cs_control = spitz_max1111_cs,
+};
+
+static struct spi_board_info spitz_spi_devices[] = {
+ {
+ .modalias = "ads7846",
+ .max_speed_hz = 1200000,
+ .bus_num = 2,
+ .chip_select = 0,
+ .platform_data = &spitz_ads7846_info,
+ .controller_data= &spitz_ads7846_chip,
+ .irq = gpio_to_irq(SPITZ_GPIO_TP_INT),
+ }, {
+ .modalias = "corgi-lcd",
+ .max_speed_hz = 50000,
+ .bus_num = 2,
+ .chip_select = 1,
+ .platform_data = &spitz_lcdcon_info,
+ .controller_data= &spitz_lcdcon_chip,
+ }, {
+ .modalias = "max1111",
+ .max_speed_hz = 450000,
+ .bus_num = 2,
+ .chip_select = 2,
+ .controller_data= &spitz_max1111_chip,
+ },
+};
+
+static void __init spitz_init_spi(void)
+{
+ int err;
+
+ err = gpio_request(SPITZ_GPIO_ADS7846_CS, "ADS7846_CS");
+ if (err)
+ return;
+
+ err = gpio_request(SPITZ_GPIO_LCDCON_CS, "LCDCON_CS");
+ if (err)
+ goto err_free_1;
+
+ err = gpio_request(SPITZ_GPIO_MAX1111_CS, "MAX1111_CS");
+ if (err)
+ goto err_free_2;
+
+ pxa2xx_set_spi_info(2, &spitz_spi_info);
+ spi_register_board_info(ARRAY_AND_SIZE(spitz_spi_devices));
+ return;
+
+err_free_2:
+ gpio_free(SPITZ_GPIO_LCDCON_CS);
+err_free_1:
+ gpio_free(SPITZ_GPIO_ADS7846_CS);
+}
+#else
+static inline void spitz_init_spi(void) {}
#endif
- return 0;
-
- return get_hsync_invperiod(spitz_pxafb_dev);
-}
-
-static void spitz_put_hsync(void)
-{
- put_device(spitz_pxafb_dev);
- if (get_hsync_invperiod)
- symbol_put(pxafb_get_hsync_time);
- spitz_pxafb_dev = NULL;
- get_hsync_invperiod = NULL;
-}
-
-static void spitz_wait_hsync(void)
-{
- sharpsl_wait_sync(SPITZ_GPIO_HSYNC);
-}
-
-static struct resource spitzts_resources[] = {
- [0] = {
- .start = SPITZ_IRQ_GPIO_TP_INT,
- .end = SPITZ_IRQ_GPIO_TP_INT,
- .flags = IORESOURCE_IRQ,
- },
-};
-
-static struct corgits_machinfo spitz_ts_machinfo = {
- .get_hsync_invperiod = spitz_get_hsync_invperiod,
- .put_hsync = spitz_put_hsync,
- .wait_hsync = spitz_wait_hsync,
-};
-
-static struct platform_device spitzts_device = {
- .name = "corgi-ts",
- .dev = {
- .parent = &spitzssp_device.dev,
- .platform_data = &spitz_ts_machinfo,
- },
- .id = -1,
- .num_resources = ARRAY_SIZE(spitzts_resources),
- .resource = spitzts_resources,
-};
-
/*
* MMC/SD Device
@@ -532,14 +545,6 @@
* Spitz PXA Framebuffer
*/
-static void spitz_lcd_power(int on, struct fb_var_screeninfo *var)
-{
- if (on)
- corgi_lcdtg_hw_init(var->xres);
- else
- corgi_lcdtg_suspend();
-}
-
static struct pxafb_mode_info spitz_pxafb_modes[] = {
{
.pixclock = 19231,
@@ -573,16 +578,12 @@
.num_modes = 2,
.fixed_modes = 1,
.lcd_conn = LCD_COLOR_TFT_16BPP | LCD_ALTERNATE_MAPPING,
- .pxafb_lcd_power = spitz_lcd_power,
};
static struct platform_device *devices[] __initdata = {
&spitzscoop_device,
- &spitzssp_device,
&spitzkbd_device,
- &spitzts_device,
- &spitzbl_device,
&spitzled_device,
};
@@ -613,44 +614,21 @@
pxa2xx_mfp_config(ARRAY_AND_SIZE(spitz_pin_config));
- corgi_ssp_set_machinfo(&spitz_ssp_machinfo);
+ spitz_init_spi();
platform_add_devices(devices, ARRAY_SIZE(devices));
pxa_set_mci_info(&spitz_mci_platform_data);
pxa_set_ohci_info(&spitz_ohci_platform_data);
pxa_set_ficp_info(&spitz_ficp_platform_data);
- set_pxa_fb_parent(&spitzssp_device.dev);
set_pxa_fb_info(&spitz_pxafb_info);
pxa_set_i2c_info(NULL);
}
#if defined(CONFIG_MACH_SPITZ) || defined(CONFIG_MACH_BORZOI)
-static void spitz_bl_set_intensity(int intensity)
-{
- if (intensity > 0x10)
- intensity += 0x10;
-
- /* Bits 0-4 are accessed via the SSP interface */
- corgi_ssp_blduty_set(intensity & 0x1f);
-
- /* Bit 5 is via SCOOP */
- if (intensity & 0x0020)
- reset_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_BACKLIGHT_CONT);
- else
- set_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_BACKLIGHT_CONT);
-
- if (intensity)
- set_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_BACKLIGHT_ON);
- else
- reset_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_BACKLIGHT_ON);
-}
-
static void __init spitz_init(void)
{
platform_scoop_config = &spitz_pcmcia_config;
- spitz_bl_machinfo.set_bl_intensity = spitz_bl_set_intensity;
-
common_init();
platform_device_register(&spitzscoop2_device);
@@ -668,26 +646,6 @@
EXPORT_SYMBOL_GPL(akitaioexp_device);
-static void akita_bl_set_intensity(int intensity)
-{
- if (intensity > 0x10)
- intensity += 0x10;
-
- /* Bits 0-4 are accessed via the SSP interface */
- corgi_ssp_blduty_set(intensity & 0x1f);
-
- /* Bit 5 is via IO-Expander */
- if (intensity & 0x0020)
- akita_reset_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_BACKLIGHT_CONT);
- else
- akita_set_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_BACKLIGHT_CONT);
-
- if (intensity)
- akita_set_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_BACKLIGHT_ON);
- else
- akita_reset_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_BACKLIGHT_ON);
-}
-
static void __init akita_init(void)
{
spitz_ficp_platform_data.transceiver_mode = akita_irda_transceiver_mode;
@@ -695,7 +653,6 @@
/* We just pretend the second element of the array doesn't exist */
spitz_pcmcia_config.num_devs = 1;
platform_scoop_config = &spitz_pcmcia_config;
- spitz_bl_machinfo.set_bl_intensity = akita_bl_set_intensity;
platform_device_register(&akitaioexp_device);