Re: CRIS v32: leftover references on ETRAX_VIRTUAL_GPIO

[Jesper Nilsson <jesper.nilsson@axis.com>]

On Fri, Oct 02, 2015 at 08:57:22AM +0200, Valentin Rothberg wrote:
> Hi Rabin,
> 
> your commit ("CRIS v32: remove old GPIO and LEDs code") is in today's
> linux-next tree (i.e., 20151002).  Among other Kconfig options, the
> commit removes ETRAX_VIRTUAL_GPIO but leaves the following references in
> the code:
> 
> 0 arch/cris/arch-v32/kernel/setup.c       132 #ifdef CONFIG_ETRAX_VIRTUAL_GPIO
> 1 arch/cris/arch-v32/kernel/setup.c       149 #ifdef CONFIG_ETRAX_VIRTUAL_GPIO
> 2 arch/cris/arch-v32/mach-fs/Kconfig      197 depends on ETRAX_VIRTUAL_GPIO
> 3 arch/cris/arch-v32/mach-fs/Kconfig      208 depends on ETRAX_VIRTUAL_GPIO
> 4 arch/cris/include/uapi/asm/etraxgpio.h   59 #ifdef CONFIG_ETRAX_VIRTUAL_GPIO
> 5 arch/cris/include/uapi/asm/etraxgpio.h   74 #ifdef CONFIG_ETRAX_VIRTUAL_GPIO
> 
> Is it intentional or just an accident?
> 
> I found the issue with scripts/checkkconfigsymbols.py.

Good tip, I've gone through the list and removed the ones I found
to be orphaned. There was one that actually was a typo, and some that was
false detections. For example ETRAX_SER is only a part of magic macro concatenation...
For reference:

CRIS: Drop code related to obsolete or unused kconfigs

Drop all code related to Kconfigs that don't exist.
Fix one Kconfig where it was actually typo:ed (ETRAX_KGB_PORT2)
Drop content related to CRIS v32 SoCs from etraxgpio.h headerfile,
all use of GPIO for both ETRAX FS and ARTPEC-3 should now be through
standard gpiolib instead.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
---
 arch/cris/arch-v10/kernel/head.S       |  106 ---------------------
 arch/cris/arch-v10/mm/init.c           |   14 +--
 arch/cris/arch-v32/kernel/debugport.c  |    2 -
 arch/cris/arch-v32/kernel/head.S       |    4 -
 arch/cris/arch-v32/kernel/irq.c        |    2 +-
 arch/cris/arch-v32/kernel/setup.c      |    8 --
 arch/cris/arch-v32/mach-fs/Kconfig     |   19 ----
 arch/cris/boot/rescue/head_v10.S       |    3 -
 arch/cris/include/asm/eshlibld.h       |    3 +-
 arch/cris/include/uapi/asm/etraxgpio.h |  157 --------------------------------
 10 files changed, 5 insertions(+), 313 deletions(-)

diff --git a/arch/cris/arch-v10/kernel/head.S b/arch/cris/arch-v10/kernel/head.S
index 4a146e1..a4877a4 100644
--- a/arch/cris/arch-v10/kernel/head.S
+++ b/arch/cris/arch-v10/kernel/head.S
@@ -354,63 +354,6 @@ no_command_line:
 	blo	1b
 	nop
 
-#ifdef CONFIG_BLK_DEV_ETRAXIDE
-	;; disable ATA before enabling it in genconfig below
-	moveq	0,$r0
-	move.d	$r0,[R_ATA_CTRL_DATA]
-	move.d	$r0,[R_ATA_TRANSFER_CNT]
-	move.d	$r0,[R_ATA_CONFIG]
-#if 0
-	move.d	R_PORT_G_DATA, $r1
-	move.d	$r0, [$r1]; assert ATA bus-reset
-	nop
-	nop
-	nop
-	nop
-	nop
-	nop
-	move.d	0x08000000,$r0
-	move.d	$r0,[$r1]
-#endif
-#endif
-
-#ifdef CONFIG_JULIETTE
-	;; configure external DMA channel 0 before enabling it in genconfig
-
-	moveq	0,$r0
-	move.d	$r0,[R_EXT_DMA_0_ADDR]
-	; cnt enable, word size, output, stop, size 0
-	move.d	  IO_STATE (R_EXT_DMA_0_CMD, cnt, enable)	\
-		| IO_STATE (R_EXT_DMA_0_CMD, rqpol, ahigh)	\
-		| IO_STATE (R_EXT_DMA_0_CMD, apol, ahigh)	\
-		| IO_STATE (R_EXT_DMA_0_CMD, rq_ack, burst)	\
-		| IO_STATE (R_EXT_DMA_0_CMD, wid, word)		\
-		| IO_STATE (R_EXT_DMA_0_CMD, dir, output)	\
-		| IO_STATE (R_EXT_DMA_0_CMD, run, stop)		\
-		| IO_FIELD (R_EXT_DMA_0_CMD, trf_count, 0),$r0
-	move.d	$r0,[R_EXT_DMA_0_CMD]
-
-	;; reset dma4 and wait for completion
-
-	moveq	IO_STATE (R_DMA_CH4_CMD, cmd, reset),$r0
-	move.b	$r0,[R_DMA_CH4_CMD]
-1:	move.b	[R_DMA_CH4_CMD],$r0
-	and.b	IO_MASK (R_DMA_CH4_CMD, cmd),$r0
-	cmp.b	IO_STATE (R_DMA_CH4_CMD, cmd, reset),$r0
-	beq	1b
-	nop
-
-	;; reset dma5 and wait for completion
-
-	moveq	IO_STATE (R_DMA_CH5_CMD, cmd, reset),$r0
-	move.b	$r0,[R_DMA_CH5_CMD]
-1:	move.b	[R_DMA_CH5_CMD],$r0
-	and.b	IO_MASK (R_DMA_CH5_CMD, cmd),$r0
-	cmp.b	IO_STATE (R_DMA_CH5_CMD, cmd, reset),$r0
-	beq	1b
-	nop
-#endif
-
 	;; Etrax product HW genconfig setup
 
 	moveq	0,$r0
@@ -447,21 +390,6 @@ no_command_line:
 		| IO_STATE (R_GEN_CONFIG, dma9, usb),$r0
 
 
-#if defined(CONFIG_ETRAX_DEF_R_PORT_G0_DIR_OUT)
-        or.d      IO_STATE (R_GEN_CONFIG, g0dir, out),$r0
-#endif
-
-#if defined(CONFIG_ETRAX_DEF_R_PORT_G8_15_DIR_OUT)
-        or.d      IO_STATE (R_GEN_CONFIG, g8_15dir, out),$r0
-#endif
-#if defined(CONFIG_ETRAX_DEF_R_PORT_G16_23_DIR_OUT)
-       or.d      IO_STATE (R_GEN_CONFIG, g16_23dir, out),$r0
-#endif
-
-#if defined(CONFIG_ETRAX_DEF_R_PORT_G24_DIR_OUT)
-       or.d      IO_STATE (R_GEN_CONFIG, g24dir, out),$r0
-#endif
-
 	move.d	$r0,[genconfig_shadow] ; init a shadow register of R_GEN_CONFIG
 
 	move.d	$r0,[R_GEN_CONFIG]
@@ -500,19 +428,9 @@ no_command_line:
 	;; including their shadow registers
 
 	move.b	CONFIG_ETRAX_DEF_R_PORT_PA_DIR,$r0
-#if defined(CONFIG_BLUETOOTH) && defined(CONFIG_BLUETOOTH_RESET_PA7)
-	or.b	IO_STATE (R_PORT_PA_DIR, dir7, output),$r0
-#endif
 	move.b	$r0,[port_pa_dir_shadow]
 	move.b	$r0,[R_PORT_PA_DIR]
 	move.b	CONFIG_ETRAX_DEF_R_PORT_PA_DATA,$r0
-#if defined(CONFIG_BLUETOOTH) && defined(CONFIG_BLUETOOTH_RESET_PA7)
-#if defined(CONFIG_BLUETOOTH_RESET_ACTIVE_HIGH)
-	and.b	~(1 << 7),$r0
-#else
-	or.b	(1 << 7),$r0
-#endif
-#endif
 	move.b	$r0,[port_pa_data_shadow]
 	move.b	$r0,[R_PORT_PA_DATA]
 
@@ -520,19 +438,9 @@ no_command_line:
 	move.b	$r0,[port_pb_config_shadow]
 	move.b	$r0,[R_PORT_PB_CONFIG]
 	move.b	CONFIG_ETRAX_DEF_R_PORT_PB_DIR,$r0
-#if defined(CONFIG_BLUETOOTH) && defined(CONFIG_BLUETOOTH_RESET_PB5)
-	or.b	IO_STATE (R_PORT_PB_DIR, dir5, output),$r0
-#endif
 	move.b	$r0,[port_pb_dir_shadow]
 	move.b	$r0,[R_PORT_PB_DIR]
 	move.b	CONFIG_ETRAX_DEF_R_PORT_PB_DATA,$r0
-#if defined(CONFIG_BLUETOOTH) && defined(CONFIG_BLUETOOTH_RESET_PB5)
-#if defined(CONFIG_BLUETOOTH_RESET_ACTIVE_HIGH)
-	and.b	~(1 << 5),$r0
-#else
-	or.b	(1 << 5),$r0
-#endif
-#endif
 	move.b	$r0,[port_pb_data_shadow]
 	move.b	$r0,[R_PORT_PB_DATA]
 
@@ -541,20 +449,6 @@ no_command_line:
 	move.d  $r0, [R_PORT_PB_I2C]
 
 	moveq	0,$r0
-#if defined(CONFIG_BLUETOOTH) && defined(CONFIG_BLUETOOTH_RESET_G10)
-#if defined(CONFIG_BLUETOOTH_RESET_ACTIVE_HIGH)
-	and.d	~(1 << 10),$r0
-#else
-	or.d	(1 << 10),$r0
-#endif
-#endif
-#if defined(CONFIG_BLUETOOTH) && defined(CONFIG_BLUETOOTH_RESET_G11)
-#if defined(CONFIG_BLUETOOTH_RESET_ACTIVE_HIGH)
-	and.d	~(1 << 11),$r0
-#else
-	or.d	(1 << 11),$r0
-#endif
-#endif
 	move.d	$r0,[port_g_data_shadow]
 	move.d	$r0,[R_PORT_G_DATA]
 
diff --git a/arch/cris/arch-v10/mm/init.c b/arch/cris/arch-v10/mm/init.c
index e7f8066..85e3f1b 100644
--- a/arch/cris/arch-v10/mm/init.c
+++ b/arch/cris/arch-v10/mm/init.c
@@ -68,14 +68,10 @@ paging_init(void)
 
 	*R_MMU_KSEG = ( IO_STATE(R_MMU_KSEG, seg_f, seg  ) |  /* bootrom */
 			IO_STATE(R_MMU_KSEG, seg_e, page ) |
-			IO_STATE(R_MMU_KSEG, seg_d, page ) | 
-			IO_STATE(R_MMU_KSEG, seg_c, page ) |   
+			IO_STATE(R_MMU_KSEG, seg_d, page ) |
+			IO_STATE(R_MMU_KSEG, seg_c, page ) |
 			IO_STATE(R_MMU_KSEG, seg_b, seg  ) |  /* kernel reg area */
-#ifdef CONFIG_JULIETTE
-			IO_STATE(R_MMU_KSEG, seg_a, seg  ) |  /* ARTPEC etc. */
-#else
 			IO_STATE(R_MMU_KSEG, seg_a, page ) |
-#endif
 			IO_STATE(R_MMU_KSEG, seg_9, seg  ) |  /* LED's on some boards */
 			IO_STATE(R_MMU_KSEG, seg_8, seg  ) |  /* CSE0/1, flash and I/O */
 			IO_STATE(R_MMU_KSEG, seg_7, page ) |  /* kernel vmalloc area */
@@ -92,14 +88,10 @@ paging_init(void)
 			    IO_FIELD(R_MMU_KBASE_HI, base_d, 0x0 ) |
 			    IO_FIELD(R_MMU_KBASE_HI, base_c, 0x0 ) |
 			    IO_FIELD(R_MMU_KBASE_HI, base_b, 0xb ) |
-#ifdef CONFIG_JULIETTE
-			    IO_FIELD(R_MMU_KBASE_HI, base_a, 0xa ) |
-#else
 			    IO_FIELD(R_MMU_KBASE_HI, base_a, 0x0 ) |
-#endif
 			    IO_FIELD(R_MMU_KBASE_HI, base_9, 0x9 ) |
 			    IO_FIELD(R_MMU_KBASE_HI, base_8, 0x8 ) );
-	
+
 	*R_MMU_KBASE_LO = ( IO_FIELD(R_MMU_KBASE_LO, base_7, 0x0 ) |
 			    IO_FIELD(R_MMU_KBASE_LO, base_6, 0x4 ) |
 			    IO_FIELD(R_MMU_KBASE_LO, base_5, 0x0 ) |
diff --git a/arch/cris/arch-v32/kernel/debugport.c b/arch/cris/arch-v32/kernel/debugport.c
index 02e33eb..d2f3f9c 100644
--- a/arch/cris/arch-v32/kernel/debugport.c
+++ b/arch/cris/arch-v32/kernel/debugport.c
@@ -77,8 +77,6 @@ static struct dbg_port *port =
 	&ports[2];
 #elif defined(CONFIG_ETRAX_DEBUG_PORT3)
 	&ports[3];
-#elif defined(CONFIG_ETRAX_DEBUG_PORT4)
-	&ports[4];
 #else
 	NULL;
 #endif
diff --git a/arch/cris/arch-v32/kernel/head.S b/arch/cris/arch-v32/kernel/head.S
index 74a66e0..ea63668 100644
--- a/arch/cris/arch-v32/kernel/head.S
+++ b/arch/cris/arch-v32/kernel/head.S
@@ -292,11 +292,7 @@ _no_romfs_in_flash:
 	;; For cramfs, partition starts with magic and length.
 	;; For jffs2, a jhead is prepended which contains with magic and length.
 	;; The jhead is not part of the jffs2 partition however.
-#ifndef CONFIG_ETRAXFS_SIM
 	move.d	__bss_start, $r0
-#else
-	move.d	__end, $r0
-#endif
 	move.d	[$r0], $r1
 	cmp.d	CRAMFS_MAGIC, $r1 ; cramfs magic?
 	beq	2f		  ; yes, jump
diff --git a/arch/cris/arch-v32/kernel/irq.c b/arch/cris/arch-v32/kernel/irq.c
index b566a03..6de8db6 100644
--- a/arch/cris/arch-v32/kernel/irq.c
+++ b/arch/cris/arch-v32/kernel/irq.c
@@ -37,7 +37,7 @@
 #define IGNOREMASK (1 << (SER0_INTR_VECT - FIRST_IRQ))
 #elif defined(CONFIG_ETRAX_KGDB_PORT1)
 #define IGNOREMASK (1 << (SER1_INTR_VECT - FIRST_IRQ))
-#elif defined(CONFIG_ETRAX_KGB_PORT2)
+#elif defined(CONFIG_ETRAX_KGDB_PORT2)
 #define IGNOREMASK (1 << (SER2_INTR_VECT - FIRST_IRQ))
 #elif defined(CONFIG_ETRAX_KGDB_PORT3)
 #define IGNOREMASK (1 << (SER3_INTR_VECT - FIRST_IRQ))
diff --git a/arch/cris/arch-v32/kernel/setup.c b/arch/cris/arch-v32/kernel/setup.c
index cd1865d..fe50287 100644
--- a/arch/cris/arch-v32/kernel/setup.c
+++ b/arch/cris/arch-v32/kernel/setup.c
@@ -129,10 +129,6 @@ static struct i2c_board_info __initdata i2c_info[] = {
 #ifdef CONFIG_RTC_DRV_PCF8563
 	{I2C_BOARD_INFO("pcf8563", 0x51)},
 #endif
-#ifdef CONFIG_ETRAX_VIRTUAL_GPIO
-	{I2C_BOARD_INFO("vgpio", 0x20)},
-	{I2C_BOARD_INFO("vgpio", 0x21)},
-#endif
 	{I2C_BOARD_INFO("pca9536", 0x41)},
 	{I2C_BOARD_INFO("fnp300", 0x40)},
 	{I2C_BOARD_INFO("fnp300", 0x42)},
@@ -146,10 +142,6 @@ static struct i2c_board_info __initdata i2c_info2[] = {
 	{I2C_BOARD_INFO("tmp100", 0x4C)},
 	{I2C_BOARD_INFO("tmp100", 0x4D)},
 	{I2C_BOARD_INFO("tmp100", 0x4E)},
-#ifdef CONFIG_ETRAX_VIRTUAL_GPIO
-	{I2C_BOARD_INFO("vgpio", 0x20)},
-	{I2C_BOARD_INFO("vgpio", 0x21)},
-#endif
 	{I2C_BOARD_INFO("pca9536", 0x41)},
 	{I2C_BOARD_INFO("fnp300", 0x40)},
 	{I2C_BOARD_INFO("fnp300", 0x42)},
diff --git a/arch/cris/arch-v32/mach-fs/Kconfig b/arch/cris/arch-v32/mach-fs/Kconfig
index 774de82..7d1ab97 100644
--- a/arch/cris/arch-v32/mach-fs/Kconfig
+++ b/arch/cris/arch-v32/mach-fs/Kconfig
@@ -192,25 +192,6 @@ config ETRAX_DEF_GIO_PE_OUT
 	  Configures the initial data for the general port E bits.  Most
 	  products should use 00000 here.
 
-config ETRAX_DEF_GIO_PV_OE
-	hex "GIO_PV_OE"
-	depends on ETRAX_VIRTUAL_GPIO
-	default "0000"
-	help
-	  Configures the direction of virtual general port V bits. 1 is out,
-	  0 is in. This is often totally different depending on the product
-	  used. These bits are used for all kinds of stuff. If you don't know
-	  what to use, it is always safe to put all as inputs, although
-	  floating inputs isn't good.
-
-config ETRAX_DEF_GIO_PV_OUT
-	hex "GIO_PV_OUT"
-	depends on ETRAX_VIRTUAL_GPIO
-	default "0000"
-	help
-	  Configures the initial data for the virtual general port V bits.
-	  Most products should use 0000 here.
-
 endmenu
 
 endif
diff --git a/arch/cris/boot/rescue/head_v10.S b/arch/cris/boot/rescue/head_v10.S
index af55df0..1c05492 100644
--- a/arch/cris/boot/rescue/head_v10.S
+++ b/arch/cris/boot/rescue/head_v10.S
@@ -281,9 +281,6 @@ wait_ser:
 #ifdef CONFIG_ETRAX_PB_LEDS
 	move.b	$r2, [R_PORT_PB_DATA]
 #endif
-#ifdef CONFIG_ETRAX_90000000_LEDS
-	move.b	$r2, [0x90000000]
-#endif
 #endif
 
 	;; check if we got something on the serial port
diff --git a/arch/cris/include/asm/eshlibld.h b/arch/cris/include/asm/eshlibld.h
index 10ce36c..70aa448 100644
--- a/arch/cris/include/asm/eshlibld.h
+++ b/arch/cris/include/asm/eshlibld.h
@@ -45,8 +45,7 @@
    assumed that we want to share code when debugging (exposes more
    trouble). */
 #ifndef SHARE_LIB_CORE
-# if (defined(__KERNEL__) || !defined(RELOC_DEBUG)) \
-     && !defined(CONFIG_SHARE_SHLIB_CORE)
+# if (defined(__KERNEL__) || !defined(RELOC_DEBUG))
 #  define SHARE_LIB_CORE 0
 # else
 #  define SHARE_LIB_CORE 1
diff --git a/arch/cris/include/uapi/asm/etraxgpio.h b/arch/cris/include/uapi/asm/etraxgpio.h
index 461c089..c6e7d57 100644
--- a/arch/cris/include/uapi/asm/etraxgpio.h
+++ b/arch/cris/include/uapi/asm/etraxgpio.h
@@ -11,26 +11,6 @@
  *       g1-g7 and g25-g31 is both input and outputs but on different pins
  *       Also note that some bits change pins depending on what interfaces
  *       are enabled.
- *
- * For ETRAX FS (CONFIG_ETRAXFS):
- * /dev/gpioa  minor 0,  8 bit GPIO, each bit can change direction
- * /dev/gpiob  minor 1, 18 bit GPIO, each bit can change direction
- * /dev/gpioc  minor 3, 18 bit GPIO, each bit can change direction
- * /dev/gpiod  minor 4, 18 bit GPIO, each bit can change direction
- * /dev/gpioe  minor 5, 18 bit GPIO, each bit can change direction
- * /dev/leds   minor 2, Access to leds depending on kernelconfig
- *
- * For ARTPEC-3 (CONFIG_CRIS_MACH_ARTPEC3):
- * /dev/gpioa  minor 0, 32 bit GPIO, each bit can change direction
- * /dev/gpiob  minor 1, 32 bit GPIO, each bit can change direction
- * /dev/gpioc  minor 3, 16 bit GPIO, each bit can change direction
- * /dev/gpiod  minor 4, 32 bit GPIO, input only
- * /dev/leds   minor 2, Access to leds depending on kernelconfig
- * /dev/pwm0   minor 16, PWM channel 0 on PA30
- * /dev/pwm1   minor 17, PWM channel 1 on PA31
- * /dev/pwm2   minor 18, PWM channel 2 on PB26
- * /dev/ppwm   minor 19, PPWM channel
- *
  */
 #ifndef _ASM_ETRAXGPIO_H
 #define _ASM_ETRAXGPIO_H
@@ -40,52 +20,12 @@
 #define ETRAXGPIO_IOCTYPE 43
 
 /* etraxgpio _IOC_TYPE, bits 8 to 15 in ioctl cmd */
-#ifdef CONFIG_ETRAX_ARCH_V10
 #define GPIO_MINOR_A 0
 #define GPIO_MINOR_B 1
 #define GPIO_MINOR_LEDS 2
 #define GPIO_MINOR_G 3
 #define GPIO_MINOR_LAST 3
 #define GPIO_MINOR_LAST_REAL GPIO_MINOR_LAST
-#endif
-
-#ifdef CONFIG_ETRAXFS
-#define GPIO_MINOR_A 0
-#define GPIO_MINOR_B 1
-#define GPIO_MINOR_LEDS 2
-#define GPIO_MINOR_C 3
-#define GPIO_MINOR_D 4
-#define GPIO_MINOR_E 5
-#ifdef CONFIG_ETRAX_VIRTUAL_GPIO
-#define GPIO_MINOR_V 6
-#define GPIO_MINOR_LAST 6
-#else
-#define GPIO_MINOR_LAST 5
-#endif
-#define GPIO_MINOR_LAST_REAL GPIO_MINOR_LAST
-#endif
-
-#ifdef CONFIG_CRIS_MACH_ARTPEC3
-#define GPIO_MINOR_A 0
-#define GPIO_MINOR_B 1
-#define GPIO_MINOR_LEDS 2
-#define GPIO_MINOR_C 3
-#define GPIO_MINOR_D 4
-#ifdef CONFIG_ETRAX_VIRTUAL_GPIO
-#define GPIO_MINOR_V 6
-#define GPIO_MINOR_LAST 6
-#else
-#define GPIO_MINOR_LAST 4
-#endif
-#define GPIO_MINOR_FIRST_PWM 16
-#define GPIO_MINOR_PWM0 (GPIO_MINOR_FIRST_PWM+0)
-#define GPIO_MINOR_PWM1 (GPIO_MINOR_FIRST_PWM+1)
-#define GPIO_MINOR_PWM2 (GPIO_MINOR_FIRST_PWM+2)
-#define GPIO_MINOR_PPWM (GPIO_MINOR_FIRST_PWM+3)
-#define GPIO_MINOR_LAST_PWM GPIO_MINOR_PPWM
-#define GPIO_MINOR_LAST_REAL GPIO_MINOR_LAST_PWM
-#endif
-
 
 
 /* supported ioctl _IOC_NR's */
@@ -139,101 +79,4 @@
 #define IO_SETGET_OUTPUT 0x13 /* bits set in *arg is set to output, */
 			      /* *arg updated with current output pins. */
 
-/* The following ioctl's are applicable to the PWM channels only */
-
-#define IO_PWM_SET_MODE     0x20
-
-enum io_pwm_mode {
-	PWM_OFF = 0,		/* disabled, deallocated */
-	PWM_STANDARD = 1,	/* 390 kHz, duty cycle 0..255/256 */
-	PWM_FAST = 2,		/* variable freq, w/ 10ns active pulse len */
-	PWM_VARFREQ = 3,	/* individually configurable high/low periods */
-	PWM_SOFT = 4		/* software generated */
-};
-
-struct io_pwm_set_mode {
-	enum io_pwm_mode mode;
-};
-
-/* Only for mode PWM_VARFREQ. Period lo/high set in increments of 10ns
- * from 10ns (value = 0) to 81920ns (value = 8191)
- * (Resulting frequencies range from 50 MHz (10ns + 10ns) down to
- * 6.1 kHz (81920ns + 81920ns) at 50% duty cycle, to 12.2 kHz at min/max duty
- * cycle (81920 + 10ns or 10ns + 81920ns, respectively).)
- */
-#define IO_PWM_SET_PERIOD   0x21
-
-struct io_pwm_set_period {
-	unsigned int lo;		/* 0..8191 */
-	unsigned int hi;		/* 0..8191 */
-};
-
-/* Only for modes PWM_STANDARD and PWM_FAST.
- * For PWM_STANDARD, set duty cycle of 390 kHz PWM output signal, from
- * 0 (value = 0) to 255/256 (value = 255).
- * For PWM_FAST, set duty cycle of PWM output signal from
- * 0% (value = 0) to 100% (value = 255). Output signal in this mode
- * is a 10ns pulse surrounded by a high or low level depending on duty
- * cycle (except for 0% and 100% which result in a constant output).
- * Resulting output frequency varies from 50 MHz at 50% duty cycle,
- * down to 390 kHz at min/max duty cycle.
- */
-#define IO_PWM_SET_DUTY     0x22
-
-struct io_pwm_set_duty {
-	int duty;		/* 0..255 */
-};
-
-/* Returns information about the latest PWM pulse.
- * lo: Length of the latest low period, in units of 10ns.
- * hi: Length of the latest high period, in units of 10ns.
- * cnt: Time since last detected edge, in units of 10ns.
- *
- * The input source to PWM is decied by IO_PWM_SET_INPUT_SRC.
- *
- * NOTE: All PWM devices is connected to the same input source.
- */
-#define IO_PWM_GET_PERIOD   0x23
-
-struct io_pwm_get_period {
-	unsigned int lo;
-	unsigned int hi;
-	unsigned int cnt;
-};
-
-/* Sets the input source for the PWM input. For the src value see the
- * register description for gio:rw_pwm_in_cfg.
- *
- * NOTE: All PWM devices is connected to the same input source.
- */
-#define IO_PWM_SET_INPUT_SRC   0x24
-struct io_pwm_set_input_src {
-	unsigned int src;	/* 0..7 */
-};
-
-/* Sets the duty cycles in steps of 1/256, 0 = 0%, 255 = 100% duty cycle */
-#define IO_PPWM_SET_DUTY     0x25
-
-struct io_ppwm_set_duty {
-	int duty;		/* 0..255 */
-};
-
-/* Configuraton struct for the IO_PWMCLK_SET_CONFIG ioctl to configure
- * PWM capable gpio pins:
- */
-#define IO_PWMCLK_SETGET_CONFIG 0x26
-struct gpio_pwmclk_conf {
-  unsigned int gpiopin; /* The pin number based on the opened device */
-  unsigned int baseclk; /* The base clock to use, or sw will select one close*/
-  unsigned int low;     /* The number of low periods of the baseclk */
-  unsigned int high;    /* The number of high periods of the baseclk */
-};
-
-/* Examples:
- * To get a symmetric 12 MHz clock without knowing anything about the hardware:
- * baseclk = 12000000, low = 0, high = 0
- * To just get info of current setting:
- * baseclk = 0, low = 0, high = 0, the values will be updated by driver.
- */
-
 #endif
-- 
1.7.10.4

> Kind regards,
>  Valentin

/^JN - Jesper Nilsson
-- 
               Jesper Nilsson -- jesper.nilsson@axis.com