---

yaml --- r: 100929 b: refs/heads/master c: fdc614e h: refs/heads/master i: 100927: 060bada v: v3
git-mirror · Jul 9, 2008 · 8abc294 · 8abc294
1 parent f26bc21
commit 8abc294
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Showing 30 changed files with 941 additions and 114 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 9fc697b0b01416edae99dd9c5c49fb69c9282744
+refs/heads/master: fdc614e873bc56ed15d8f4e9fa33516cd0915fc2
diff --git a/trunk/arch/arm/Kconfig b/trunk/arch/arm/Kconfig
@@ -22,6 +22,9 @@ config ARM
 	  Europe.  There is an ARM Linux project with a web page at
 	  <http://www.arm.linux.org.uk/>.
 
+config HAVE_PWM
+	bool
+
 config SYS_SUPPORTS_APM_EMULATION
 	bool
 

diff --git a/trunk/arch/arm/mach-pxa/Kconfig b/trunk/arch/arm/mach-pxa/Kconfig
@@ -36,10 +36,12 @@ config ARCH_LUBBOCK
 config MACH_LOGICPD_PXA270
 	bool "LogicPD PXA270 Card Engine Development Platform"
 	select PXA27x
+	select HAVE_PWM
 
 config MACH_MAINSTONE
 	bool "Intel HCDDBBVA0 Development Platform"
 	select PXA27x
+	select HAVE_PWM
 
 config ARCH_PXA_IDP
 	bool "Accelent Xscale IDP"
@@ -115,6 +117,7 @@ config MACH_COLIBRI
 config MACH_ZYLONITE
 	bool "PXA3xx Development Platform"
 	select PXA3xx
+	select HAVE_PWM
 
 config MACH_LITTLETON
 	bool "PXA3xx Form Factor Platform (aka Littleton)"
@@ -145,6 +148,22 @@ choice
 
 config MACH_PCM990_BASEBOARD
 	bool "PHYTEC PCM-990 development board"
+	select HAVE_PWM
+
+endchoice
+
+choice
+	prompt "display on pcm990"
+	depends on MACH_PCM990_BASEBOARD
+
+config PCM990_DISPLAY_SHARP
+	bool "sharp lq084v1dg21 stn display"
+
+config PCM990_DISPLAY_NEC
+	bool "nec nl6448bc20_18d tft display"
+
+config PCM990_DISPLAY_NONE
+	bool "no display"
 
 endchoice
 
@@ -263,4 +282,10 @@ config PXA_SSP
 	tristate
 	help
 	  Enable support for PXA2xx SSP ports
+
+config PXA_PWM
+	tristate
+	default BACKLIGHT_PWM
+	help
+	  Enable support for PXA2xx/PXA3xx PWM controllers
 endif
diff --git a/trunk/arch/arm/mach-pxa/Makefile b/trunk/arch/arm/mach-pxa/Makefile
@@ -10,6 +10,7 @@ obj-$(CONFIG_CPU_FREQ)		+= cpu-pxa.o
 
 # Generic drivers that other drivers may depend upon
 obj-$(CONFIG_PXA_SSP)		+= ssp.o
+obj-$(CONFIG_PXA_PWM)		+= pwm.o
 
 # SoC-specific code
 obj-$(CONFIG_PXA25x)		+= mfp-pxa2xx.o pxa25x.o

diff --git a/trunk/arch/arm/mach-pxa/clock.c b/trunk/arch/arm/mach-pxa/clock.c
@@ -47,6 +47,9 @@ struct clk *clk_get(struct device *dev, const char *id)
 		clk = p;
 	mutex_unlock(&clocks_mutex);
 
+	if (!IS_ERR(clk) && clk->ops == NULL)
+		clk = clk->other;
+
 	return clk;
 }
 EXPORT_SYMBOL(clk_get);

diff --git a/trunk/arch/arm/mach-pxa/clock.h b/trunk/arch/arm/mach-pxa/clock.h
@@ -15,6 +15,7 @@ struct clk {
 	unsigned int		cken;
 	unsigned int		delay;
 	unsigned int		enabled;
+	struct clk		*other;
 };
 
 #define INIT_CKEN(_name, _cken, _rate, _delay, _dev)	\
@@ -35,6 +36,17 @@ struct clk {
 		.cken	= CKEN_##_cken,			\
 	}
 
+/*
+ * This is a placeholder to alias one clock device+name pair
+ * to another struct clk.
+ */
+#define INIT_CKOTHER(_name, _other, _dev)		\
+	{						\
+		.name	= _name,			\
+		.dev	= _dev,				\
+		.other	= _other,			\
+	}
+
 extern const struct clkops clk_cken_ops;
 
 void clk_cken_enable(struct clk *clk);

diff --git a/trunk/arch/arm/mach-pxa/devices.c b/trunk/arch/arm/mach-pxa/devices.c
@@ -289,6 +289,36 @@ struct platform_device pxa_device_rtc = {
 
 #ifdef CONFIG_PXA25x
 
+static struct resource pxa25x_resource_pwm0[] = {
+	[0] = {
+		.start	= 0x40b00000,
+		.end	= 0x40b0000f,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+struct platform_device pxa25x_device_pwm0 = {
+	.name		= "pxa25x-pwm",
+	.id		= 0,
+	.resource	= pxa25x_resource_pwm0,
+	.num_resources	= ARRAY_SIZE(pxa25x_resource_pwm0),
+};
+
+static struct resource pxa25x_resource_pwm1[] = {
+	[0] = {
+		.start	= 0x40c00000,
+		.end	= 0x40c0000f,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+struct platform_device pxa25x_device_pwm1 = {
+	.name		= "pxa25x-pwm",
+	.id		= 1,
+	.resource	= pxa25x_resource_pwm1,
+	.num_resources	= ARRAY_SIZE(pxa25x_resource_pwm1),
+};
+
 static u64 pxa25x_ssp_dma_mask = DMA_BIT_MASK(32);
 
 static struct resource pxa25x_resource_ssp[] = {
@@ -577,6 +607,36 @@ struct platform_device pxa27x_device_ssp3 = {
 	.num_resources	= ARRAY_SIZE(pxa27x_resource_ssp3),
 };
 
+static struct resource pxa27x_resource_pwm0[] = {
+	[0] = {
+		.start	= 0x40b00000,
+		.end	= 0x40b0001f,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+struct platform_device pxa27x_device_pwm0 = {
+	.name		= "pxa27x-pwm",
+	.id		= 0,
+	.resource	= pxa27x_resource_pwm0,
+	.num_resources	= ARRAY_SIZE(pxa27x_resource_pwm0),
+};
+
+static struct resource pxa27x_resource_pwm1[] = {
+	[0] = {
+		.start	= 0x40c00000,
+		.end	= 0x40c0001f,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+struct platform_device pxa27x_device_pwm1 = {
+	.name		= "pxa27x-pwm",
+	.id		= 1,
+	.resource	= pxa27x_resource_pwm1,
+	.num_resources	= ARRAY_SIZE(pxa27x_resource_pwm1),
+};
+
 static struct resource pxa27x_resource_camera[] = {
 	[0] = {
 		.start	= 0x50000000,

diff --git a/trunk/arch/arm/mach-pxa/devices.h b/trunk/arch/arm/mach-pxa/devices.h
@@ -24,4 +24,9 @@ extern struct platform_device pxa27x_device_ssp2;
 extern struct platform_device pxa27x_device_ssp3;
 extern struct platform_device pxa3xx_device_ssp4;
 
+extern struct platform_device pxa25x_device_pwm0;
+extern struct platform_device pxa25x_device_pwm1;
+extern struct platform_device pxa27x_device_pwm0;
+extern struct platform_device pxa27x_device_pwm1;
+
 void __init pxa_register_device(struct platform_device *dev, void *data);
diff --git a/trunk/arch/arm/mach-pxa/irq.c b/trunk/arch/arm/mach-pxa/irq.c
@@ -21,7 +21,6 @@
 #include <asm/irq.h>
 #include <asm/mach/irq.h>
 #include <asm/arch/pxa-regs.h>
-#include <asm/arch/pxa2xx-gpio.h>
 
 #include "generic.h"
 

diff --git a/trunk/arch/arm/mach-pxa/lpd270.c b/trunk/arch/arm/mach-pxa/lpd270.c
@@ -23,6 +23,7 @@
 #include <linux/ioport.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
+#include <linux/pwm_backlight.h>
 
 #include <asm/types.h>
 #include <asm/setup.h>
@@ -236,21 +237,20 @@ static struct platform_device lpd270_flash_device[2] = {
 	},
 };
 
-static void lpd270_backlight_power(int on)
-{
-	if (on) {
-		pxa_gpio_mode(GPIO16_PWM0_MD);
-		pxa_set_cken(CKEN_PWM0, 1);
-		PWM_CTRL0 = 0;
-		PWM_PWDUTY0 = 0x3ff;
-		PWM_PERVAL0 = 0x3ff;
-	} else {
-		PWM_CTRL0 = 0;
-		PWM_PWDUTY0 = 0x0;
-		PWM_PERVAL0 = 0x3FF;
-		pxa_set_cken(CKEN_PWM0, 0);
-	}
-}
+static struct platform_pwm_backlight_data lpd270_backlight_data = {
+	.pwm_id		= 0,
+	.max_brightness	= 1,
+	.dft_brightness	= 1,
+	.pwm_period_ns	= 78770,
+};
+
+static struct platform_device lpd270_backlight_device = {
+	.name		= "pwm-backlight",
+	.dev		= {
+		.parent	= &pxa27x_device_pwm0.dev,
+		.platform_data = &lpd270_backlight_data,
+	},
+};
 
 /* 5.7" TFT QVGA (LoLo display number 1) */
 static struct pxafb_mode_info sharp_lq057q3dc02_mode = {
@@ -272,7 +272,6 @@ static struct pxafb_mach_info sharp_lq057q3dc02 = {
 	.num_modes		= 1,
 	.lccr0			= 0x07800080,
 	.lccr3			= 0x00400000,
-	.pxafb_backlight_power	= lpd270_backlight_power,
 };
 
 /* 12.1" TFT SVGA (LoLo display number 2) */
@@ -295,7 +294,6 @@ static struct pxafb_mach_info sharp_lq121s1dg31 = {
 	.num_modes		= 1,
 	.lccr0			= 0x07800080,
 	.lccr3			= 0x00400000,
-	.pxafb_backlight_power	= lpd270_backlight_power,
 };
 
 /* 3.6" TFT QVGA (LoLo display number 3) */
@@ -318,7 +316,6 @@ static struct pxafb_mach_info sharp_lq036q1da01 = {
 	.num_modes		= 1,
 	.lccr0			= 0x07800080,
 	.lccr3			= 0x00400000,
-	.pxafb_backlight_power	= lpd270_backlight_power,
 };
 
 /* 6.4" TFT VGA (LoLo display number 5) */
@@ -341,7 +338,6 @@ static struct pxafb_mach_info sharp_lq64d343 = {
 	.num_modes		= 1,
 	.lccr0			= 0x07800080,
 	.lccr3			= 0x00400000,
-	.pxafb_backlight_power	= lpd270_backlight_power,
 };
 
 /* 10.4" TFT VGA (LoLo display number 7) */
@@ -364,7 +360,6 @@ static struct pxafb_mach_info sharp_lq10d368 = {
 	.num_modes		= 1,
 	.lccr0			= 0x07800080,
 	.lccr3			= 0x00400000,
-	.pxafb_backlight_power	= lpd270_backlight_power,
 };
 
 /* 3.5" TFT QVGA (LoLo display number 8) */
@@ -387,7 +382,6 @@ static struct pxafb_mach_info sharp_lq035q7db02_20 = {
 	.num_modes		= 1,
 	.lccr0			= 0x07800080,
 	.lccr3			= 0x00400000,
-	.pxafb_backlight_power	= lpd270_backlight_power,
 };
 
 static struct pxafb_mach_info *lpd270_lcd_to_use;
@@ -417,6 +411,7 @@ __setup("lcd=", lpd270_set_lcd);
 
 static struct platform_device *platform_devices[] __initdata = {
 	&smc91x_device,
+	&lpd270_backlight_device,
 	&lpd270_audio_device,
 	&lpd270_flash_device[0],
 	&lpd270_flash_device[1],
@@ -457,6 +452,7 @@ static void __init lpd270_init(void)
 	 * On LogicPD PXA270, we route AC97_SYSCLK via GPIO45.
 	 */
 	pxa_gpio_mode(GPIO45_SYSCLK_AC97_MD);
+	pxa_gpio_mode(GPIO16_PWM0_MD);
 
 	platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));