Merge branch 'for-linus' of git://www.jni.nu/cris

* 'for-linus' of git://www.jni.nu/cris: (51 commits)
  CRIS: Fix alignment problem for older ld
  CRIS: Always dump registers for segfaulting process.
  CRIS: Add config for pausing a seg-faulting process
  CRIS: Don't take faults while in_atomic
  CRIS: Fixup lookup for delay slot faults
  CRIS: Discard exit.text and .data at runtime
  CRIS: Add cache aligned and read mostly data sections
  CRIS: Return something from profile write
  CRIS: Add ARTPEC-3 and timestamps for sync-serial
  CRIS: Better ARTPEC-3 support for gpio
  CRIS: Add include guard
  CRIS: Better handling of pinmux settings
  CRIS: New DMA defines for ARTPEC-3
  CRIS: __do_strncpy_from_user: Don't read the byte beyond the nil
  CRIS: Pagetable for ARTPEC-3
  CRIS: Machine dependent memmap.h
  CRIS: Check if pointer is set before using it
  CRIS: Machine dependent dma.h
  CRIS: Define __read_mostly for CRISv32
  CRIS: Discard .note.gnu.build-id section
  ...

2 files changed, 104 insertions, 19 deletions

diff --git a/arch/cris/include/asm/etraxgpio.h b/arch/cris/include/asm/etraxgpio.h
index 38f1c8e..d474818 100644
--- a/arch/cris/include/asm/etraxgpio.h
+++ b/arch/cris/include/asm/etraxgpio.h
@@ -21,31 +21,35 @@
  * /dev/leds   minor 2, Access to leds depending on kernelconfig
  *
  * For ARTPEC-3 (CONFIG_CRIS_MACH_ARTPEC3):
- * /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/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
 
+#define GPIO_MINOR_FIRST 0
+
+#define ETRAXGPIO_IOCTYPE 43
+
 /* etraxgpio _IOC_TYPE, bits 8 to 15 in ioctl cmd */
 #ifdef CONFIG_ETRAX_ARCH_V10
-#define ETRAXGPIO_IOCTYPE 43
 #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 ETRAXGPIO_IOCTYPE 43
 #define GPIO_MINOR_A 0
 #define GPIO_MINOR_B 1
 #define GPIO_MINOR_LEDS 2
@@ -58,10 +62,10 @@
 #else
 #define GPIO_MINOR_LAST 5
 #endif
+#define GPIO_MINOR_LAST_REAL GPIO_MINOR_LAST
 #endif
 
 #ifdef CONFIG_CRIS_MACH_ARTPEC3
-#define ETRAXGPIO_IOCTYPE 43
 #define GPIO_MINOR_A 0
 #define GPIO_MINOR_B 1
 #define GPIO_MINOR_LEDS 2
@@ -73,12 +77,17 @@
 #else
 #define GPIO_MINOR_LAST 4
 #endif
-#define GPIO_MINOR_PWM0 16
-#define GPIO_MINOR_PWM1 17
-#define GPIO_MINOR_PWM2 18
-#define GPIO_MINOR_LAST_PWM GPIO_MINOR_PWM2
+#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 */
 
 #define IO_READBITS  0x1  /* read and return current port bits (obsolete) */
@@ -125,12 +134,10 @@
  */
 #define IO_READ_INBITS   0x10 /* *arg is result of reading the input pins */
 #define IO_READ_OUTBITS  0x11 /* *arg is result of reading the output shadow */
-#define IO_SETGET_INPUT  0x12 /* bits set in *arg is set to input,
-                               * *arg updated with current input pins.
-                               */
-#define IO_SETGET_OUTPUT 0x13 /* bits set in *arg is set to output,
-                               * *arg updated with current output pins.
-                               */
+#define IO_SETGET_INPUT  0x12 /* bits set in *arg is set to input, */
+			      /* *arg updated with current input pins. */
+#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 */
 
@@ -140,7 +147,8 @@ 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_VARFREQ = 3,	/* individually configurable high/low periods */
+	PWM_SOFT = 4		/* software generated */
 };
 
 struct io_pwm_set_mode {
@@ -176,4 +184,56 @@ 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
diff --git a/arch/cris/include/asm/sync_serial.h b/arch/cris/include/asm/sync_serial.h
index d87c24d..7f827fe 100644
--- a/arch/cris/include/asm/sync_serial.h
+++ b/arch/cris/include/asm/sync_serial.h
@@ -19,6 +19,7 @@
 #define SSP_OPOLARITY  _IOR('S', 4, unsigned int)
 #define SSP_SPI        _IOR('S', 5, unsigned int)
 #define SSP_INBUFCHUNK _IOR('S', 6, unsigned int)
+#define SSP_INPUT      _IOR('S', 7, unsigned int)
 
 /* Values for SSP_SPEED */
 #define SSP150        0
@@ -37,6 +38,7 @@
 #define SSP921600    13
 #define SSP3125000   14
 #define CODEC        15
+#define CODEC_f32768 16
 
 #define FREQ_4MHz   0
 #define FREQ_2MHz   1
@@ -46,9 +48,14 @@
 #define FREQ_128kHz 5
 #define FREQ_64kHz  6
 #define FREQ_32kHz  7
+/* FREQ_* with values where bit (value & 0x10) is set are */
+/* used for CODEC_f32768 */
+#define FREQ_4096kHz 16 /* CODEC_f32768 */
 
 /* Used by application to set CODEC divider, word rate and frame rate */
-#define CODEC_VAL(freq, clk_per_sync, sync_per_frame) (CODEC | (freq << 8) | (clk_per_sync << 16) | (sync_per_frame << 28))
+#define CODEC_VAL(freq, clk_per_sync, sync_per_frame) \
+	((CODEC + ((freq & 0x10) >> 4)) | (freq << 8) | \
+		   (clk_per_sync << 16) | (sync_per_frame << 28))
 
 /* Used by driver to extract speed */
 #define GET_SPEED(x) (x & 0xff)
@@ -68,6 +75,7 @@
 #define NORMAL_SYNC                1
 #define EARLY_SYNC                 2
 #define SECOND_WORD_SYNC     0x40000
+#define LATE_SYNC            0x80000
 
 #define BIT_SYNC                   4
 #define WORD_SYNC                  8
@@ -104,4 +112,21 @@
 /* Values for SSP_INBUFCHUNK */
 /* plain integer with the size of DMA chunks */
 
+/* To ensure that the timestamps are aligned with the data being read
+ * the read length MUST be a multiple of the length of the DMA buffers.
+ *
+ * Use a multiple of SSP_INPUT_CHUNK_SIZE defined below.
+ */
+#define SSP_INPUT_CHUNK_SIZE  256
+
+/* Request struct to pass through the ioctl interface to read
+ * data with timestamps.
+ */
+struct ssp_request {
+	char __user *buf;	/* Where to put the data. */
+	size_t len;		/* Size of buf. MUST be a multiple of */
+				/* SSP_INPUT_CHUNK_SIZE! */
+	struct timespec ts;	/* The time the data was sampled. */
+};
+
 #endif