Merge tag 'media/v4.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:
 "Brazil's Independence Day pull request :-)

  This is one of the biggest media pull requests, with 625 patches
  affecting almost all parts of media (RC, DVB, V4L2, CEC, docs).

  This contains:

   - A lot of new drivers:
     * DVB frontends: mxl5xx, stv0910, stv6111;
     * camera flash: as3645a led driver;
     * HDMI receiver: adv748X;
     * camera sensor: Omnivision 6650 5M driver (ov6650);
     * HDMI CEC: ao-cec meson driver;
     * V4L2: Qualcom camss driver;
     * Remote controller: gpio-ir-tx, pwm-ir-tx and zx-irdec drivers.

   - The DDbridge DVB driver got a massive update, with makes it in sync
     with modern hardware from that vendor;

   - There's an important milestone on this series: the DVB
     documentation was written in 2003, but only started to be updated
     in 2007. It also used to contain several gaps from the time it was
     kept out of tree, mentioning error codes and device nodes that
     never existed upstream. On this series, it received a massive
     update: all non-deprecated digital TV APIs are now in sync with the
     current implementation;

   - Some DVB APIs that aren't used by any upstream driver got removed;

   - Other parts of the media documentation algo got updated, fixing
     some bugs on its PDF output and making it compatible with Sphinx
     version 1.6.

     As the number of hacks required to build PDF output reduced, I hope
     we'll have less troubles as newer versions of our documentation
     toolchain are released (famous last words);

   - As usual, lots of driver cleanups and improvements"

* tag 'media/v4.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (624 commits)
  media: leds: as3645a: add V4L2_FLASH_LED_CLASS dependency
  media: get rid of removed DMX_GET_CAPS and DMX_SET_SOURCE leftovers
  media: Revert "[media] v4l: async: make v4l2 coexist with devicetree nodes in a dt overlay"
  media: staging: atomisp: sh_css_calloc shall return a pointer to the allocated space
  media: Revert "[media] lirc_dev: remove superfluous get/put_device() calls"
  media: add qcom_camss.rst to v4l-drivers rst file
  media: dvb headers: make checkpatch happier
  media: dvb uapi: move frontend legacy API to another part of the book
  media: pixfmt-srggb12p.rst: better format the table for PDF output
  media: docs-rst: media: Don't use \small for V4L2_PIX_FMT_SRGGB10 documentation
  media: index.rst: don't write "Contents:" on PDF output
  media: pixfmt*.rst: replace a two dots by a comma
  media: vidioc-g-fmt.rst: adjust table format
  media: vivid.rst: add a blank line to correct ReST format
  media: v4l2 uapi book: get rid of driver programming's chapter
  media: format.rst: use the right markup for important notes
  media: docs-rst: cardlists: change their format to flat-tables
  media: em28xx-cardlist.rst: update to reflect last changes
  media: v4l2-event.rst: adjust table to fit on PDF output
  media: docs: don't show ToC for each part on PDF output
  ...

1 files changed, 20 insertions, 26 deletions

diff --git a/drivers/media/rc/serial_ir.c b/drivers/media/rc/serial_ir.c
index 77d5d4cbed0a..8b66926bc16a 100644
--- a/drivers/media/rc/serial_ir.c
+++ b/drivers/media/rc/serial_ir.c
@@ -139,10 +139,8 @@ struct serial_ir {
 	struct platform_device *pdev;
 	struct timer_list timeout_timer;
 
-	unsigned int freq;
+	unsigned int carrier;
 	unsigned int duty_cycle;
-
-	unsigned int pulse_width, space_width;
 };
 
 static struct serial_ir serial_ir;
@@ -183,18 +181,6 @@ static void off(void)
 		soutp(UART_MCR, hardware[type].off);
 }
 
-static void init_timing_params(unsigned int new_duty_cycle,
-			       unsigned int new_freq)
-{
-	serial_ir.duty_cycle = new_duty_cycle;
-	serial_ir.freq = new_freq;
-
-	serial_ir.pulse_width = DIV_ROUND_CLOSEST(
-		new_duty_cycle * NSEC_PER_SEC, new_freq * 100l);
-	serial_ir.space_width = DIV_ROUND_CLOSEST(
-		(100l - new_duty_cycle) * NSEC_PER_SEC, new_freq * 100l);
-}
-
 static void send_pulse_irdeo(unsigned int length, ktime_t target)
 {
 	long rawbits;
@@ -241,13 +227,20 @@ static void send_pulse_homebrew_softcarrier(unsigned int length, ktime_t edge)
 	 * ndelay(s64) does not compile; so use s32 rather than s64.
 	 */
 	s32 delta;
+	unsigned int pulse, space;
+
+	/* Ensure the dividend fits into 32 bit */
+	pulse = DIV_ROUND_CLOSEST(serial_ir.duty_cycle * (NSEC_PER_SEC / 100),
+				  serial_ir.carrier);
+	space = DIV_ROUND_CLOSEST((100 - serial_ir.duty_cycle) *
+				  (NSEC_PER_SEC / 100), serial_ir.carrier);
 
 	for (;;) {
 		now = ktime_get();
 		if (ktime_compare(now, target) >= 0)
 			break;
 		on();
-		edge = ktime_add_ns(edge, serial_ir.pulse_width);
+		edge = ktime_add_ns(edge, pulse);
 		delta = ktime_to_ns(ktime_sub(edge, now));
 		if (delta > 0)
 			ndelay(delta);
@@ -255,7 +248,7 @@ static void send_pulse_homebrew_softcarrier(unsigned int length, ktime_t edge)
 		off();
 		if (ktime_compare(now, target) >= 0)
 			break;
-		edge = ktime_add_ns(edge, serial_ir.space_width);
+		edge = ktime_add_ns(edge, space);
 		delta = ktime_to_ns(ktime_sub(edge, now));
 		if (delta > 0)
 			ndelay(delta);
@@ -513,19 +506,19 @@ static int serial_ir_probe(struct platform_device *dev)
 
 	switch (type) {
 	case IR_HOMEBREW:
-		rcdev->input_name = "Serial IR type home-brew";
+		rcdev->device_name = "Serial IR type home-brew";
 		break;
 	case IR_IRDEO:
-		rcdev->input_name = "Serial IR type IRdeo";
+		rcdev->device_name = "Serial IR type IRdeo";
 		break;
 	case IR_IRDEO_REMOTE:
-		rcdev->input_name = "Serial IR type IRdeo remote";
+		rcdev->device_name = "Serial IR type IRdeo remote";
 		break;
 	case IR_ANIMAX:
-		rcdev->input_name = "Serial IR type AnimaX";
+		rcdev->device_name = "Serial IR type AnimaX";
 		break;
 	case IR_IGOR:
-		rcdev->input_name = "Serial IR type IgorPlug";
+		rcdev->device_name = "Serial IR type IgorPlug";
 		break;
 	}
 
@@ -537,7 +530,7 @@ static int serial_ir_probe(struct platform_device *dev)
 	rcdev->open = serial_ir_open;
 	rcdev->close = serial_ir_close;
 	rcdev->dev.parent = &serial_ir.pdev->dev;
-	rcdev->allowed_protocols = RC_BIT_ALL_IR_DECODER;
+	rcdev->allowed_protocols = RC_PROTO_BIT_ALL_IR_DECODER;
 	rcdev->driver_name = KBUILD_MODNAME;
 	rcdev->map_name = RC_MAP_RC6_MCE;
 	rcdev->min_timeout = 1;
@@ -580,7 +573,8 @@ static int serial_ir_probe(struct platform_device *dev)
 		return result;
 
 	/* Initialize pulse/space widths */
-	init_timing_params(50, 38000);
+	serial_ir.duty_cycle = 50;
+	serial_ir.carrier = 38000;
 
 	/* If pin is high, then this must be an active low receiver. */
 	if (sense == -1) {
@@ -684,7 +678,7 @@ static int serial_ir_tx(struct rc_dev *dev, unsigned int *txbuf,
 
 static int serial_ir_tx_duty_cycle(struct rc_dev *dev, u32 cycle)
 {
-	init_timing_params(cycle, serial_ir.freq);
+	serial_ir.duty_cycle = cycle;
 	return 0;
 }
 
@@ -693,7 +687,7 @@ static int serial_ir_tx_carrier(struct rc_dev *dev, u32 carrier)
 	if (carrier > 500000 || carrier < 20000)
 		return -EINVAL;
 
-	init_timing_params(serial_ir.duty_cycle, carrier);
+	serial_ir.carrier = carrier;
 	return 0;
 }