Merge tag 'media/v4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - Lots of improvements at the DVB API DocBook documentation.  Now, the
   frontend and the network APIs are fully in sync with the Kernel and
   looks more like the rest of the media documentation;

 - New frontend driver: cx24120

 - New driver for a PCI device: cobalt.  This driver is actually not
   sold in the market, but it is a good example of a multi-HDMI input
   device;

 - The dt3155 driver were promoted from staging;

 - The mantis driver got remote controller support;

 - New V4L2 driver for ST bdisp SoC chipsets;

 - Make sparse and smatch happier: several bugs were solved by fixing
   the issues reported by those static code analyzers.

 - Lots of new device additions, new features, improvements and cleanups
   at the existing drivers.

* tag 'media/v4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (553 commits)
  [media] lmedm04: fix the range for relative measurements
  [media] lmedm04: use u32 instead of u64 for relative stats
  [media] omap3isp: remove unused var
  [media] saa7134: fix page size on some archs
  [media] use CONFIG_PM_SLEEP for suspend/resume
  [media] tuner-i2c: be consistent with I2C declaration
  [media] si470x: cleanup define namespace
  [media] bdisp: prevent compiling on random arch
  [media] vb2: Don't WARN when v4l2_buffer.bytesused is 0 for multiplanar buffers
  [media] MAINTAINERS: Add entry for the Renesas VSP1 driver
  [media] videodev2.h: fix copy-and-paste error in V4L2_MAP_XFER_FUNC_DEFAULT
  [media] Revert "[media] vb2: Push mmap_sem down to memops"
  [media] mantis: cleanup a warning
  [media] bdisp-debug: don't try to divide by s64
  [media] cx88: don't declare restart_video_queue if not used
  [media] au0828: move dev->boards atribuition to happen earlier
  [media] lmedm04: implement dvb v5 statistics
  [media] bdisp: remove unused var
  [media] bdisp: remove needless check
  ts2020: fix compilation on i386
  ...

1 files changed, 35 insertions, 43 deletions

diff --git a/drivers/media/dvb-core/dvb_frontend.c b/drivers/media/dvb-core/dvb_frontend.c
index 882ca417f328..842b9c8f80c6 100644
--- a/drivers/media/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb-core/dvb_frontend.c
@@ -40,6 +40,7 @@
 #include <linux/freezer.h>
 #include <linux/jiffies.h>
 #include <linux/kthread.h>
+#include <linux/ktime.h>
 #include <asm/processor.h>
 
 #include "dvb_frontend.h"
@@ -110,7 +111,7 @@ struct dvb_frontend_private {
 	struct task_struct *thread;
 	unsigned long release_jiffies;
 	unsigned int wakeup;
-	fe_status_t status;
+	enum fe_status status;
 	unsigned long tune_mode_flags;
 	unsigned int delay;
 	unsigned int reinitialise;
@@ -198,7 +199,8 @@ static enum dvbv3_emulation_type dvbv3_type(u32 delivery_system)
 	}
 }
 
-static void dvb_frontend_add_event(struct dvb_frontend *fe, fe_status_t status)
+static void dvb_frontend_add_event(struct dvb_frontend *fe,
+				   enum fe_status status)
 {
 	struct dvb_frontend_private *fepriv = fe->frontend_priv;
 	struct dvb_fe_events *events = &fepriv->events;
@@ -429,7 +431,7 @@ static int dvb_frontend_swzigzag_autotune(struct dvb_frontend *fe, int check_wra
 
 static void dvb_frontend_swzigzag(struct dvb_frontend *fe)
 {
-	fe_status_t s = 0;
+	enum fe_status s = 0;
 	int retval = 0;
 	struct dvb_frontend_private *fepriv = fe->frontend_priv;
 	struct dtv_frontend_properties *c = &fe->dtv_property_cache, tmp;
@@ -690,7 +692,7 @@ static int dvb_frontend_thread(void *data)
 {
 	struct dvb_frontend *fe = data;
 	struct dvb_frontend_private *fepriv = fe->frontend_priv;
-	fe_status_t s;
+	enum fe_status s;
 	enum dvbfe_algo algo;
 #ifdef CONFIG_MEDIA_CONTROLLER_DVB
 	int ret;
@@ -889,42 +891,21 @@ static void dvb_frontend_stop(struct dvb_frontend *fe)
 				fepriv->thread);
 }
 
-s32 timeval_usec_diff(struct timeval lasttime, struct timeval curtime)
-{
-	return ((curtime.tv_usec < lasttime.tv_usec) ?
-		1000000 - lasttime.tv_usec + curtime.tv_usec :
-		curtime.tv_usec - lasttime.tv_usec);
-}
-EXPORT_SYMBOL(timeval_usec_diff);
-
-static inline void timeval_usec_add(struct timeval *curtime, u32 add_usec)
-{
-	curtime->tv_usec += add_usec;
-	if (curtime->tv_usec >= 1000000) {
-		curtime->tv_usec -= 1000000;
-		curtime->tv_sec++;
-	}
-}
-
 /*
  * Sleep until gettimeofday() > waketime + add_usec
  * This needs to be as precise as possible, but as the delay is
  * usually between 2ms and 32ms, it is done using a scheduled msleep
  * followed by usleep (normally a busy-wait loop) for the remainder
  */
-void dvb_frontend_sleep_until(struct timeval *waketime, u32 add_usec)
+void dvb_frontend_sleep_until(ktime_t *waketime, u32 add_usec)
 {
-	struct timeval lasttime;
 	s32 delta, newdelta;
 
-	timeval_usec_add(waketime, add_usec);
-
-	do_gettimeofday(&lasttime);
-	delta = timeval_usec_diff(lasttime, *waketime);
+	ktime_add_us(*waketime, add_usec);
+	delta = ktime_us_delta(ktime_get_real(), *waketime);
 	if (delta > 2500) {
 		msleep((delta - 1500) / 1000);
-		do_gettimeofday(&lasttime);
-		newdelta = timeval_usec_diff(lasttime, *waketime);
+		newdelta = ktime_us_delta(ktime_get_real(), *waketime);
 		delta = (newdelta > delta) ? 0 : newdelta;
 	}
 	if (delta > 0)
@@ -2216,7 +2197,7 @@ static int dtv_set_frontend(struct dvb_frontend *fe)
 		break;
 	}
 	if (rolloff)
-		c->bandwidth_hz = (c->symbol_rate * rolloff) / 100;
+		c->bandwidth_hz = mult_frac(c->symbol_rate, rolloff, 100);
 
 	/* force auto frequency inversion if requested */
 	if (dvb_force_auto_inversion)
@@ -2341,7 +2322,7 @@ static int dvb_frontend_ioctl_legacy(struct file *file,
 	}
 
 	case FE_READ_STATUS: {
-		fe_status_t* status = parg;
+		enum fe_status *status = parg;
 
 		/* if retune was requested but hasn't occurred yet, prevent
 		 * that user get signal state from previous tuning */
@@ -2403,7 +2384,13 @@ static int dvb_frontend_ioctl_legacy(struct file *file,
 
 	case FE_DISEQC_SEND_MASTER_CMD:
 		if (fe->ops.diseqc_send_master_cmd) {
-			err = fe->ops.diseqc_send_master_cmd(fe, (struct dvb_diseqc_master_cmd*) parg);
+			struct dvb_diseqc_master_cmd *cmd = parg;
+
+			if (cmd->msg_len > sizeof(cmd->msg)) {
+				err = -EINVAL;
+				break;
+			}
+			err = fe->ops.diseqc_send_master_cmd(fe, cmd);
 			fepriv->state = FESTATE_DISEQC;
 			fepriv->status = 0;
 		}
@@ -2411,7 +2398,8 @@ static int dvb_frontend_ioctl_legacy(struct file *file,
 
 	case FE_DISEQC_SEND_BURST:
 		if (fe->ops.diseqc_send_burst) {
-			err = fe->ops.diseqc_send_burst(fe, (fe_sec_mini_cmd_t) parg);
+			err = fe->ops.diseqc_send_burst(fe,
+						(enum fe_sec_mini_cmd)parg);
 			fepriv->state = FESTATE_DISEQC;
 			fepriv->status = 0;
 		}
@@ -2419,8 +2407,9 @@ static int dvb_frontend_ioctl_legacy(struct file *file,
 
 	case FE_SET_TONE:
 		if (fe->ops.set_tone) {
-			err = fe->ops.set_tone(fe, (fe_sec_tone_mode_t) parg);
-			fepriv->tone = (fe_sec_tone_mode_t) parg;
+			err = fe->ops.set_tone(fe,
+					       (enum fe_sec_tone_mode)parg);
+			fepriv->tone = (enum fe_sec_tone_mode)parg;
 			fepriv->state = FESTATE_DISEQC;
 			fepriv->status = 0;
 		}
@@ -2428,8 +2417,9 @@ static int dvb_frontend_ioctl_legacy(struct file *file,
 
 	case FE_SET_VOLTAGE:
 		if (fe->ops.set_voltage) {
-			err = fe->ops.set_voltage(fe, (fe_sec_voltage_t) parg);
-			fepriv->voltage = (fe_sec_voltage_t) parg;
+			err = fe->ops.set_voltage(fe,
+						  (enum fe_sec_voltage)parg);
+			fepriv->voltage = (enum fe_sec_voltage)parg;
 			fepriv->state = FESTATE_DISEQC;
 			fepriv->status = 0;
 		}
@@ -2437,7 +2427,8 @@ static int dvb_frontend_ioctl_legacy(struct file *file,
 
 	case FE_DISHNETWORK_SEND_LEGACY_CMD:
 		if (fe->ops.dishnetwork_send_legacy_command) {
-			err = fe->ops.dishnetwork_send_legacy_command(fe, (unsigned long) parg);
+			err = fe->ops.dishnetwork_send_legacy_command(fe,
+							 (unsigned long)parg);
 			fepriv->state = FESTATE_DISEQC;
 			fepriv->status = 0;
 		} else if (fe->ops.set_voltage) {
@@ -2458,13 +2449,13 @@ static int dvb_frontend_ioctl_legacy(struct file *file,
 			 * include the initialization or start bit
 			 */
 			unsigned long swcmd = ((unsigned long) parg) << 1;
-			struct timeval nexttime;
-			struct timeval tv[10];
+			ktime_t nexttime;
+			ktime_t tv[10];
 			int i;
 			u8 last = 1;
 			if (dvb_frontend_debug)
 				printk("%s switch command: 0x%04lx\n", __func__, swcmd);
-			do_gettimeofday(&nexttime);
+			nexttime = ktime_get_real();
 			if (dvb_frontend_debug)
 				tv[0] = nexttime;
 			/* before sending a command, initialize by sending
@@ -2475,7 +2466,7 @@ static int dvb_frontend_ioctl_legacy(struct file *file,
 
 			for (i = 0; i < 9; i++) {
 				if (dvb_frontend_debug)
-					do_gettimeofday(&tv[i + 1]);
+					tv[i+1] = ktime_get_real();
 				if ((swcmd & 0x01) != last) {
 					/* set voltage to (last ? 13V : 18V) */
 					fe->ops.set_voltage(fe, (last) ? SEC_VOLTAGE_13 : SEC_VOLTAGE_18);
@@ -2489,7 +2480,8 @@ static int dvb_frontend_ioctl_legacy(struct file *file,
 				printk("%s(%d): switch delay (should be 32k followed by all 8k\n",
 					__func__, fe->dvb->num);
 				for (i = 1; i < 10; i++)
-					printk("%d: %d\n", i, timeval_usec_diff(tv[i-1] , tv[i]));
+					printk("%d: %d\n", i,
+					(int) ktime_us_delta(tv[i], tv[i-1]));
 			}
 			err = 0;
 			fepriv->state = FESTATE_DISEQC;