[ARM] 4737/1: Refactor corgi_lcd to improve readability + bugfix

This patch refactors the code in corgi_lcd.c moving it to the board
specific corgi and spitz files where appropriate instead of the
existing ifdef mess which hinders readability.

Fix spitz_get_hsync_len() to call get_hsync_invperiod so pxafb can be
compiled as a module.

The confusing variables which represent the inverse horizintal sync
period are renamed to "invperiod" consistently.

An incorrect comment in corgi_ts.c is also corrected.
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/mach-pxa/corgi.c

@@ -21,6 +21,7 @@
 #include <linux/mmc/host.h>
 #include <linux/pm.h>
 #include <linux/backlight.h>
+#include <video/w100fb.h>
 
 #include <asm/setup.h>
 #include <asm/memory.h>
@@ -140,6 +141,136 @@ struct corgissp_machinfo corgi_ssp_machinfo = {
 };
 
 
+/*
+ * LCD/Framebuffer
+ */
+static void w100_lcdtg_suspend(struct w100fb_par *par)
+{
+	corgi_lcdtg_suspend();
+}
+
+static void w100_lcdtg_init(struct w100fb_par *par)
+{
+	corgi_lcdtg_hw_init(par->xres);
+}
+
+
+static struct w100_tg_info corgi_lcdtg_info = {
+	.change  = w100_lcdtg_init,
+	.suspend = w100_lcdtg_suspend,
+	.resume  = w100_lcdtg_init,
+};
+
+static struct w100_mem_info corgi_fb_mem = {
+	.ext_cntl          = 0x00040003,
+	.sdram_mode_reg    = 0x00650021,
+	.ext_timing_cntl   = 0x10002a4a,
+	.io_cntl           = 0x7ff87012,
+	.size              = 0x1fffff,
+};
+
+static struct w100_gen_regs corgi_fb_regs = {
+	.lcd_format    = 0x00000003,
+	.lcdd_cntl1    = 0x01CC0000,
+	.lcdd_cntl2    = 0x0003FFFF,
+	.genlcd_cntl1  = 0x00FFFF0D,
+	.genlcd_cntl2  = 0x003F3003,
+	.genlcd_cntl3  = 0x000102aa,
+};
+
+static struct w100_gpio_regs corgi_fb_gpio = {
+	.init_data1   = 0x000000bf,
+	.init_data2   = 0x00000000,
+	.gpio_dir1    = 0x00000000,
+	.gpio_oe1     = 0x03c0feff,
+	.gpio_dir2    = 0x00000000,
+	.gpio_oe2     = 0x00000000,
+};
+
+static struct w100_mode corgi_fb_modes[] = {
+{
+	.xres            = 480,
+	.yres            = 640,
+	.left_margin     = 0x56,
+	.right_margin    = 0x55,
+	.upper_margin    = 0x03,
+	.lower_margin    = 0x00,
+	.crtc_ss         = 0x82360056,
+	.crtc_ls         = 0xA0280000,
+	.crtc_gs         = 0x80280028,
+	.crtc_vpos_gs    = 0x02830002,
+	.crtc_rev        = 0x00400008,
+	.crtc_dclk       = 0xA0000000,
+	.crtc_gclk       = 0x8015010F,
+	.crtc_goe        = 0x80100110,
+	.crtc_ps1_active = 0x41060010,
+	.pll_freq        = 75,
+	.fast_pll_freq   = 100,
+	.sysclk_src      = CLK_SRC_PLL,
+	.sysclk_divider  = 0,
+	.pixclk_src      = CLK_SRC_PLL,
+	.pixclk_divider  = 2,
+	.pixclk_divider_rotated = 6,
+},{
+	.xres            = 240,
+	.yres            = 320,
+	.left_margin     = 0x27,
+	.right_margin    = 0x2e,
+	.upper_margin    = 0x01,
+	.lower_margin    = 0x00,
+	.crtc_ss         = 0x81170027,
+	.crtc_ls         = 0xA0140000,
+	.crtc_gs         = 0xC0140014,
+	.crtc_vpos_gs    = 0x00010141,
+	.crtc_rev        = 0x00400008,
+	.crtc_dclk       = 0xA0000000,
+	.crtc_gclk       = 0x8015010F,
+	.crtc_goe        = 0x80100110,
+	.crtc_ps1_active = 0x41060010,
+	.pll_freq        = 0,
+	.fast_pll_freq   = 0,
+	.sysclk_src      = CLK_SRC_XTAL,
+	.sysclk_divider  = 0,
+	.pixclk_src      = CLK_SRC_XTAL,
+	.pixclk_divider  = 1,
+	.pixclk_divider_rotated = 1,
+},
+
+};
+
+static struct w100fb_mach_info corgi_fb_info = {
+	.tg         = &corgi_lcdtg_info,
+	.init_mode  = INIT_MODE_ROTATED,
+	.mem        = &corgi_fb_mem,
+	.regs       = &corgi_fb_regs,
+	.modelist   = &corgi_fb_modes[0],
+	.num_modes  = 2,
+	.gpio       = &corgi_fb_gpio,
+	.xtal_freq  = 12500000,
+	.xtal_dbl   = 0,
+};
+
+static struct resource corgi_fb_resources[] = {
+	[0] = {
+		.start   = 0x08000000,
+		.end     = 0x08ffffff,
+		.flags   = IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device corgifb_device = {
+	.name           = "w100fb",
+	.id             = -1,
+	.num_resources	= ARRAY_SIZE(corgi_fb_resources),
+	.resource	= corgi_fb_resources,
+	.dev            = {
+		.platform_data = &corgi_fb_info,
+		.parent = &corgissp_device.dev,
+	},
+
+};
+
+
 /*
  * Corgi Backlight Device
  */
@@ -154,6 +285,21 @@ static void corgi_bl_kick_battery(void)
 	}
 }
 
+static void corgi_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)
+		set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_BACKLIGHT_CONT);
+	else
+		reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_BACKLIGHT_CONT);
+}
+
 static struct generic_bl_info corgi_bl_machinfo = {
 	.name = "corgi-bl",
 	.max_intensity = 0x2f,
@@ -190,9 +336,40 @@ static struct platform_device corgiled_device = {
 	.id		= -1,
 };
 
+
 /*
  * Corgi Touch Screen Device
  */
+static unsigned long (*get_hsync_invperiod)(struct device *dev);
+
+static void inline sharpsl_wait_sync(int gpio)
+{
+	while((GPLR(gpio) & GPIO_bit(gpio)) == 0);
+	while((GPLR(gpio) & GPIO_bit(gpio)) != 0);
+}
+
+static unsigned long corgi_get_hsync_invperiod(void)
+{
+	if (!get_hsync_invperiod)
+		get_hsync_invperiod = symbol_get(w100fb_get_hsynclen);
+	if (!get_hsync_invperiod)
+		return 0;
+
+	return get_hsync_invperiod(&corgifb_device.dev);
+}
+
+static void corgi_put_hsync(void)
+{
+	if (get_hsync_invperiod)
+		symbol_put(w100fb_get_hsynclen);
+	get_hsync_invperiod = NULL;
+}
+
+static void corgi_wait_hsync(void)
+{
+	sharpsl_wait_sync(CORGI_GPIO_HSYNC);
+}
+
 static struct resource corgits_resources[] = {
 	[0] = {
 		.start		= CORGI_IRQ_GPIO_TP_INT,
@@ -202,7 +379,7 @@ static struct resource corgits_resources[] = {
 };
 
 static struct corgits_machinfo  corgi_ts_machinfo = {
-	.get_hsync_len   = corgi_get_hsync_len,
+	.get_hsync_invperiod = corgi_get_hsync_invperiod,
 	.put_hsync           = corgi_put_hsync,
 	.wait_hsync          = corgi_wait_hsync,
 };

arch/arm/mach-pxa/corgi_lcd.c

@@ -173,7 +173,7 @@ static void lcdtg_set_phadadj(int mode)
 
 static int lcd_inited;
 
-static void lcdtg_hw_init(int mode)
+void corgi_lcdtg_hw_init(int mode)
 {
 	if (!lcd_inited) {
 		int comadj;
@@ -254,7 +254,7 @@ static void lcdtg_hw_init(int mode)
 	}
 }
 
-static void lcdtg_suspend(void)
+void corgi_lcdtg_suspend(void)
 {
 	/* 60Hz x 2 frame = 16.7msec x 2 = 33.4 msec */
 	mdelay(34);
@@ -288,298 +288,3 @@ static void lcdtg_suspend(void)
 	lcd_inited = 0;
 }
 
-
-/*
- * Corgi w100 Frame Buffer Device
- */
-#ifdef CONFIG_PXA_SHARP_C7xx
-
-#include <video/w100fb.h>
-
-static void w100_lcdtg_suspend(struct w100fb_par *par)
-{
-	lcdtg_suspend();
-}
-
-static void w100_lcdtg_init(struct w100fb_par *par)
-{
-	lcdtg_hw_init(par->xres);
-}
-
-
-static struct w100_tg_info corgi_lcdtg_info = {
-	.change  = w100_lcdtg_init,
-	.suspend = w100_lcdtg_suspend,
-	.resume  = w100_lcdtg_init,
-};
-
-static struct w100_mem_info corgi_fb_mem = {
-	.ext_cntl          = 0x00040003,
-	.sdram_mode_reg    = 0x00650021,
-	.ext_timing_cntl   = 0x10002a4a,
-	.io_cntl           = 0x7ff87012,
-	.size              = 0x1fffff,
-};
-
-static struct w100_gen_regs corgi_fb_regs = {
-	.lcd_format    = 0x00000003,
-	.lcdd_cntl1    = 0x01CC0000,
-	.lcdd_cntl2    = 0x0003FFFF,
-	.genlcd_cntl1  = 0x00FFFF0D,
-	.genlcd_cntl2  = 0x003F3003,
-	.genlcd_cntl3  = 0x000102aa,
-};
-
-static struct w100_gpio_regs corgi_fb_gpio = {
-	.init_data1   = 0x000000bf,
-	.init_data2   = 0x00000000,
-	.gpio_dir1    = 0x00000000,
-	.gpio_oe1     = 0x03c0feff,
-	.gpio_dir2    = 0x00000000,
-	.gpio_oe2     = 0x00000000,
-};
-
-static struct w100_mode corgi_fb_modes[] = {
-{
-	.xres            = 480,
-	.yres            = 640,
-	.left_margin     = 0x56,
-	.right_margin    = 0x55,
-	.upper_margin    = 0x03,
-	.lower_margin    = 0x00,
-	.crtc_ss         = 0x82360056,
-	.crtc_ls         = 0xA0280000,
-	.crtc_gs         = 0x80280028,
-	.crtc_vpos_gs    = 0x02830002,
-	.crtc_rev        = 0x00400008,
-	.crtc_dclk       = 0xA0000000,
-	.crtc_gclk       = 0x8015010F,
-	.crtc_goe        = 0x80100110,
-	.crtc_ps1_active = 0x41060010,
-	.pll_freq        = 75,
-	.fast_pll_freq   = 100,
-	.sysclk_src      = CLK_SRC_PLL,
-	.sysclk_divider  = 0,
-	.pixclk_src      = CLK_SRC_PLL,
-	.pixclk_divider  = 2,
-	.pixclk_divider_rotated = 6,
-},{
-	.xres            = 240,
-	.yres            = 320,
-	.left_margin     = 0x27,
-	.right_margin    = 0x2e,
-	.upper_margin    = 0x01,
-	.lower_margin    = 0x00,
-	.crtc_ss         = 0x81170027,
-	.crtc_ls         = 0xA0140000,
-	.crtc_gs         = 0xC0140014,
-	.crtc_vpos_gs    = 0x00010141,
-	.crtc_rev        = 0x00400008,
-	.crtc_dclk       = 0xA0000000,
-	.crtc_gclk       = 0x8015010F,
-	.crtc_goe        = 0x80100110,
-	.crtc_ps1_active = 0x41060010,
-	.pll_freq        = 0,
-	.fast_pll_freq   = 0,
-	.sysclk_src      = CLK_SRC_XTAL,
-	.sysclk_divider  = 0,
-	.pixclk_src      = CLK_SRC_XTAL,
-	.pixclk_divider  = 1,
-	.pixclk_divider_rotated = 1,
-},
-
-};
-
-static struct w100fb_mach_info corgi_fb_info = {
-	.tg         = &corgi_lcdtg_info,
-	.init_mode  = INIT_MODE_ROTATED,
-	.mem        = &corgi_fb_mem,
-	.regs       = &corgi_fb_regs,
-	.modelist   = &corgi_fb_modes[0],
-	.num_modes  = 2,
-	.gpio       = &corgi_fb_gpio,
-	.xtal_freq  = 12500000,
-	.xtal_dbl   = 0,
-};
-
-static struct resource corgi_fb_resources[] = {
-	[0] = {
-		.start   = 0x08000000,
-		.end     = 0x08ffffff,
-		.flags   = IORESOURCE_MEM,
-	},
-};
-
-struct platform_device corgifb_device = {
-	.name           = "w100fb",
-	.id             = -1,
-	.num_resources	= ARRAY_SIZE(corgi_fb_resources),
-	.resource	= corgi_fb_resources,
-	.dev            = {
- 		.platform_data = &corgi_fb_info,
- 		.parent = &corgissp_device.dev,
-	},
-
-};
-#endif
-
-
-/*
- * Spitz PXA Frame Buffer Device
- */
-#ifdef CONFIG_PXA_SHARP_Cxx00
-
-#include <asm/arch/pxafb.h>
-
-void spitz_lcd_power(int on, struct fb_var_screeninfo *var)
-{
-	if (on)
-		lcdtg_hw_init(var->xres);
-	else
-		lcdtg_suspend();
-}
-
-#endif
-
-
-/*
- * Corgi/Spitz Touchscreen to LCD interface
- */
-static unsigned long (*get_hsync_time)(struct device *dev);
-
-static void inline sharpsl_wait_sync(int gpio)
-{
-	while((GPLR(gpio) & GPIO_bit(gpio)) == 0);
-	while((GPLR(gpio) & GPIO_bit(gpio)) != 0);
-}
-
-#ifdef CONFIG_PXA_SHARP_C7xx
-unsigned long corgi_get_hsync_len(void)
-{
-	if (!get_hsync_time)
-		get_hsync_time = symbol_get(w100fb_get_hsynclen);
-	if (!get_hsync_time)
-		return 0;
-
-	return get_hsync_time(&corgifb_device.dev);
-}
-
-void corgi_put_hsync(void)
-{
-	if (get_hsync_time)
-		symbol_put(w100fb_get_hsynclen);
-	get_hsync_time = NULL;
-}
-
-void corgi_wait_hsync(void)
-{
-	sharpsl_wait_sync(CORGI_GPIO_HSYNC);
-}
-#endif
-
-#ifdef CONFIG_PXA_SHARP_Cxx00
-static struct device *spitz_pxafb_dev;
-
-static int is_pxafb_device(struct device * dev, void * data)
-{
-	struct platform_device *pdev = container_of(dev, struct platform_device, dev);
-
-	return (strncmp(pdev->name, "pxa2xx-fb", 9) == 0);
-}
-
-unsigned long spitz_get_hsync_len(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 (!get_hsync_time)
-		get_hsync_time = symbol_get(pxafb_get_hsync_time);
-	if (!get_hsync_time)
-#endif
-		return 0;
-
-	return pxafb_get_hsync_time(spitz_pxafb_dev);
-}
-
-void spitz_put_hsync(void)
-{
-	put_device(spitz_pxafb_dev);
-	if (get_hsync_time)
-		symbol_put(pxafb_get_hsync_time);
-	spitz_pxafb_dev = NULL;
-	get_hsync_time = NULL;
-}
-
-void spitz_wait_hsync(void)
-{
-	sharpsl_wait_sync(SPITZ_GPIO_HSYNC);
-}
-#endif
-
-/*
- * Corgi/Spitz Backlight Power
- */
-#ifdef CONFIG_PXA_SHARP_C7xx
-void corgi_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)
-		set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_BACKLIGHT_CONT);
-	else
-		reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_BACKLIGHT_CONT);
-}
-#endif
-
-
-#if defined(CONFIG_MACH_SPITZ) || defined(CONFIG_MACH_BORZOI)
-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);
-}
-#endif
-
-#ifdef CONFIG_MACH_AKITA
-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);
-}
-#endif

arch/arm/mach-pxa/sharpsl.h

@@ -26,28 +26,15 @@ void corgi_ssp_set_machinfo(struct corgissp_machinfo *machinfo);
 
 
 /*
- * SharpSL Backlight
+ * SharpSL/Corgi LCD Driver
  */
-void corgi_bl_set_intensity(int intensity);
-void spitz_bl_set_intensity(int intensity);
-void akita_bl_set_intensity(int intensity);
-
-
-/*
- * SharpSL Touchscreen Driver
- */
-unsigned long corgi_get_hsync_len(void);
-unsigned long spitz_get_hsync_len(void);
-void corgi_put_hsync(void);
-void spitz_put_hsync(void);
-void corgi_wait_hsync(void);
-void spitz_wait_hsync(void);
+void corgi_lcdtg_suspend(void);
+void corgi_lcdtg_hw_init(int mode);
 
 
 /*
  * SharpSL Battery/PM Driver
  */
-
 #define READ_GPIO_BIT(x)    (GPLR(x) & GPIO_bit(x))
 
 /* MAX1111 Channel Definitions */

arch/arm/mach-pxa/spitz.c

@@ -271,6 +271,55 @@ static struct platform_device spitzled_device = {
 /*
  * Spitz Touch Screen Device
  */
+
+static unsigned long (*get_hsync_invperiod)(struct device *dev);
+
+static void inline sharpsl_wait_sync(int gpio)
+{
+	while((GPLR(gpio) & GPIO_bit(gpio)) == 0);
+	while((GPLR(gpio) & GPIO_bit(gpio)) != 0);
+}
+
+static struct device *spitz_pxafb_dev;
+
+static int is_pxafb_device(struct device * dev, void * data)
+{
+	struct platform_device *pdev = container_of(dev, struct platform_device, dev);
+
+	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 (!get_hsync_invperiod)
+		get_hsync_invperiod = symbol_get(pxafb_get_hsync_time);
+	if (!get_hsync_invperiod)
+#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,
@@ -280,7 +329,7 @@ static struct resource spitzts_resources[] = {
 };
 
 static struct corgits_machinfo  spitz_ts_machinfo = {
-	.get_hsync_len   = spitz_get_hsync_len,
+	.get_hsync_invperiod = spitz_get_hsync_invperiod,
 	.put_hsync           = spitz_put_hsync,
 	.wait_hsync          = spitz_wait_hsync,
 };
@@ -423,6 +472,14 @@ static struct pxaficp_platform_data spitz_ficp_platform_data = {
  * 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,
@@ -520,6 +577,27 @@ static void __init common_init(void)
 	set_pxa_fb_info(&spitz_pxafb_info);
 }
 
+#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;
@@ -530,6 +608,7 @@ static void __init spitz_init(void)
 
 	platform_device_register(&spitzscoop2_device);
 }
+#endif
 
 #ifdef CONFIG_MACH_AKITA
 /*
@@ -542,6 +621,26 @@ struct platform_device akitaioexp_device = {
 
 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;
@@ -558,7 +657,6 @@ static void __init akita_init(void)
 }
 #endif
 
-
 static void __init fixup_spitz(struct machine_desc *desc,
 		struct tag *tags, char **cmdline, struct meminfo *mi)
 {

drivers/input/touchscreen/corgi_ts.c

@@ -74,10 +74,10 @@ extern unsigned int get_clk_frequency_khz(int info);
 
 static unsigned long calc_waittime(struct corgi_ts *corgi_ts)
 {
-	unsigned long hsync_len = corgi_ts->machinfo->get_hsync_len();
+	unsigned long hsync_invperiod = corgi_ts->machinfo->get_hsync_invperiod();
 
-	if (hsync_len)
-		return get_clk_frequency_khz(0)*1000/hsync_len;
+	if (hsync_invperiod)
+		return get_clk_frequency_khz(0)*1000/hsync_invperiod;
 	else
 		return 0;
 }
@@ -114,7 +114,7 @@ static int sync_receive_data_send_cmd(struct corgi_ts *corgi_ts, int doRecive, i
 			if (timer2-timer1 > wait_time) {
 				/* too slow - timeout, try again */
 				corgi_ts->machinfo->wait_hsync();
-				/* get OSCR */
+				/* get CCNT */
 				CCNT(timer1);
 				/* Wait after HSync */
 				CCNT(timer2);

include/asm-arm/arch-pxa/corgi.h

@@ -104,7 +104,6 @@
  */
 extern struct platform_device corgiscoop_device;
 extern struct platform_device corgissp_device;
-extern struct platform_device corgifb_device;
 
 #endif /* __ASM_ARCH_CORGI_H  */
 

include/asm-arm/arch-pxa/sharpsl.h

@@ -16,7 +16,7 @@ int corgi_ssp_max1111_get(unsigned long data);
  */
 
 struct corgits_machinfo {
-	unsigned long (*get_hsync_len)(void);
+	unsigned long (*get_hsync_invperiod)(void);
 	void (*put_hsync)(void);
 	void (*wait_hsync)(void);
 };

include/asm-arm/arch-pxa/spitz.h

@@ -156,5 +156,3 @@ extern struct platform_device spitzscoop_device;
 extern struct platform_device spitzscoop2_device;
 extern struct platform_device spitzssp_device;
 extern struct sharpsl_charger_machinfo spitz_pm_machinfo;
-
-extern void spitz_lcd_power(int on, struct fb_var_screeninfo *var);