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authorLinus Torvalds <torvalds@linux-foundation.org>2009-02-27 16:28:18 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-02-27 16:28:18 -0800
commit174eef11a2c452cfa0c1e5bc6f759251fbc74d79 (patch)
tree6f2149ab42eaadab0fc4a33dce9034588af8a08c
parent5cf8cf4146de03de67d1a8aefbece66b65f255cc (diff)
parentb391d0f08fb0858f7d2cc034ddcca6cd0545bd7d (diff)
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: V4L/DVB (10696): Remove outdated README for the flexcop-driver V4L/DVB (10695): Update Technisat card documentation V4L/DVB (10694): [PATCH] software IRQ watchdog for Flexcop B2C2 DVB PCI cards V4L/DVB (10663): soc-camera: fix S_CROP breakage on PXA and SuperH V4L/DVB (10659): em28xx: register device to soundcard for sysfs
-rw-r--r--Documentation/dvb/README.flexcop205
-rw-r--r--Documentation/dvb/technisat.txt34
-rw-r--r--drivers/media/dvb/b2c2/flexcop-hw-filter.c1
-rw-r--r--drivers/media/dvb/b2c2/flexcop-pci.c65
-rw-r--r--drivers/media/dvb/b2c2/flexcop.c3
-rw-r--r--drivers/media/video/em28xx/em28xx-audio.c2
-rw-r--r--drivers/media/video/pxa_camera.c26
-rw-r--r--drivers/media/video/sh_mobile_ceu_camera.c13
8 files changed, 84 insertions, 265 deletions
diff --git a/Documentation/dvb/README.flexcop b/Documentation/dvb/README.flexcop
deleted file mode 100644
index 5515469de7c..00000000000
--- a/Documentation/dvb/README.flexcop
+++ /dev/null
@@ -1,205 +0,0 @@
-This README escorted the skystar2-driver rewriting procedure. It describes the
-state of the new flexcop-driver set and some internals are written down here
-too.
-
-This document hopefully describes things about the flexcop and its
-device-offsprings. Goal was to write an easy-to-write and easy-to-read set of
-drivers based on the skystar2.c and other information.
-
-Remark: flexcop-pci.c was a copy of skystar2.c, but every line has been
-touched and rewritten.
-
-History & News
-==============
- 2005-04-01 - correct USB ISOC transfers (thanks to Vadim Catana)
-
-
-
-
-General coding processing
-=========================
-
-We should proceed as follows (as long as no one complains):
-
-0) Think before start writing code!
-
-1) rewriting the skystar2.c with the help of the flexcop register descriptions
-and splitting up the files to a pci-bus-part and a flexcop-part.
-The new driver will be called b2c2-flexcop-pci.ko/b2c2-flexcop-usb.ko for the
-device-specific part and b2c2-flexcop.ko for the common flexcop-functions.
-
-2) Search for errors in the leftover of flexcop-pci.c (compare with pluto2.c
-and other pci drivers)
-
-3) make some beautification (see 'Improvements when rewriting (refactoring) is
-done')
-
-4) Testing the new driver and maybe substitute the skystar2.c with it, to reach
-a wider tester audience.
-
-5) creating an usb-bus-part using the already written flexcop code for the pci
-card.
-
-Idea: create a kernel-object for the flexcop and export all important
-functions. This option saves kernel-memory, but maybe a lot of functions have
-to be exported to kernel namespace.
-
-
-Current situation
-=================
-
-0) Done :)
-1) Done (some minor issues left)
-2) Done
-3) Not ready yet, more information is necessary
-4) next to be done (see the table below)
-5) USB driver is working (yes, there are some minor issues)
-
-What seems to be ready?
------------------------
-
-1) Rewriting
-1a) i2c is cut off from the flexcop-pci.c and seems to work
-1b) moved tuner and demod stuff from flexcop-pci.c to flexcop-tuner-fe.c
-1c) moved lnb and diseqc stuff from flexcop-pci.c to flexcop-tuner-fe.c
-1e) eeprom (reading MAC address)
-1d) sram (no dynamic sll size detection (commented out) (using default as JJ told me))
-1f) misc. register accesses for reading parameters (e.g. resetting, revision)
-1g) pid/mac filter (flexcop-hw-filter.c)
-1i) dvb-stuff initialization in flexcop.c (done)
-1h) dma stuff (now just using the size-irq, instead of all-together, to be done)
-1j) remove flexcop initialization from flexcop-pci.c completely (done)
-1l) use a well working dma IRQ method (done, see 'Known bugs and problems and TODO')
-1k) cleanup flexcop-files (remove unused EXPORT_SYMBOLs, make static from
-non-static where possible, moved code to proper places)
-
-2) Search for errors in the leftover of flexcop-pci.c (partially done)
-5a) add MAC address reading
-5c) feeding of ISOC data to the software demux (format of the isochronous data
-and speed optimization, no real error) (thanks to Vadim Catana)
-
-What to do in the near future?
---------------------------------------
-(no special order here)
-
-5) USB driver
-5b) optimize isoc-transfer (submitting/killing isoc URBs when transfer is starting)
-
-Testing changes
----------------
-
-O = item is working
-P = item is partially working
-X = item is not working
-N = item does not apply here
-<empty field> = item need to be examined
-
- | PCI | USB
-item | mt352 | nxt2002 | stv0299 | mt312 | mt352 | nxt2002 | stv0299 | mt312
--------+-------+---------+---------+-------+-------+---------+---------+-------
-1a) | O | | | | N | N | N | N
-1b) | O | | | | | | O |
-1c) | N | N | | | N | N | O |
-1d) | O | O
-1e) | O | O
-1f) | P
-1g) | O
-1h) | P |
-1i) | O | N
-1j) | O | N
-1l) | O | N
-2) | O | N
-5a) | N | O
-5b)* | N |
-5c) | N | O
-
-* - not done yet
-
-Known bugs and problems and TODO
---------------------------------
-
-1g/h/l) when pid filtering is enabled on the pci card
-
-DMA usage currently:
- The DMA is splitted in 2 equal-sized subbuffers. The Flexcop writes to first
- address and triggers an IRQ when it's full and starts writing to the second
- address. When the second address is full, the IRQ is triggered again, and
- the flexcop writes to first address again, and so on.
- The buffersize of each address is currently 640*188 bytes.
-
- Problem is, when using hw-pid-filtering and doing some low-bandwidth
- operation (like scanning) the buffers won't be filled enough to trigger
- the IRQ. That's why:
-
- When PID filtering is activated, the timer IRQ is used. Every 1.97 ms the IRQ
- is triggered. Is the current write address of DMA1 different to the one
- during the last IRQ, then the data is passed to the demuxer.
-
- There is an additional DMA-IRQ-method: packet count IRQ. This isn't
- implemented correctly yet.
-
- The solution is to disable HW PID filtering, but I don't know how the DVB
- API software demux behaves on slow systems with 45MBit/s TS.
-
-Solved bugs :)
---------------
-1g) pid-filtering (somehow pid index 4 and 5 (EMM_PID and ECM_PID) aren't
-working)
-SOLUTION: also index 0 was affected, because net_translation is done for
-these indexes by default
-
-5b) isochronous transfer does only work in the first attempt (for the Sky2PC
-USB, Air2PC is working) SOLUTION: the flexcop was going asleep and never really
-woke up again (don't know if this need fixes, see
-flexcop-fe-tuner.c:flexcop_sleep)
-
-NEWS: when the driver is loaded and unloaded and loaded again (w/o doing
-anything in the while the driver is loaded the first time), no transfers take
-place anymore.
-
-Improvements when rewriting (refactoring) is done
-=================================================
-
-- split sleeping of the flexcop (misc_204.ACPI3_sig = 1;) from lnb_control
- (enable sleeping for other demods than dvb-s)
-- add support for CableStar (stv0297 Microtune 203x/ALPS) (almost done, incompatibilities with the Nexus-CA)
-
-Debugging
----------
-- add verbose debugging to skystar2.c (dump the reg_dw_data) and compare it
- with this flexcop, this is important, because i2c is now using the
- flexcop_ibi_value union from flexcop-reg.h (do you have a better idea for
- that, please tell us so).
-
-Everything which is identical in the following table, can be put into a common
-flexcop-module.
-
- PCI USB
--------------------------------------------------------------------------------
-Different:
-Register access: accessing IO memory USB control message
-I2C bus: I2C bus of the FC USB control message
-Data transfer: DMA isochronous transfer
-EEPROM transfer: through i2c bus not clear yet
-
-Identical:
-Streaming: accessing registers
-PID Filtering: accessing registers
-Sram destinations: accessing registers
-Tuner/Demod: I2C bus
-DVB-stuff: can be written for common use
-
-Acknowledgements (just for the rewriting part)
-================
-
-Bjarne Steinsbo thought a lot in the first place of the pci part for this code
-sharing idea.
-
-Andreas Oberritter for providing a recent PCI initialization template
-(pluto2.c).
-
-Boleslaw Ciesielski for pointing out a problem with firmware loader.
-
-Vadim Catana for correcting the USB transfer.
-
-comments, critics and ideas to linux-dvb@linuxtv.org.
diff --git a/Documentation/dvb/technisat.txt b/Documentation/dvb/technisat.txt
index cdf6ee4b2da..3f435ffb289 100644
--- a/Documentation/dvb/technisat.txt
+++ b/Documentation/dvb/technisat.txt
@@ -1,5 +1,5 @@
-How to set up the Technisat devices
-===================================
+How to set up the Technisat/B2C2 Flexcop devices
+================================================
1) Find out what device you have
================================
@@ -16,54 +16,60 @@ DVB: registering frontend 0 (Conexant CX24123/CX24109)...
If the Technisat is the only TV device in your box get rid of unnecessary modules and check this one:
"Multimedia devices" => "Customise analog and hybrid tuner modules to build"
-In this directory uncheck every driver which is activated there.
+In this directory uncheck every driver which is activated there (except "Simple tuner support" for case 9 only).
Then please activate:
2a) Main module part:
a.)"Multimedia devices" => "DVB/ATSC adapters" => "Technisat/B2C2 FlexcopII(b) and FlexCopIII adapters"
-b.)"Multimedia devices" => "DVB/ATSC adapters" => "Technisat/B2C2 FlexcopII(b) and FlexCopIII adapters" => "Technisat/B2C2 Air/Sky/Cable2PC PCI" in case of a PCI card OR
+b.)"Multimedia devices" => "DVB/ATSC adapters" => "Technisat/B2C2 FlexcopII(b) and FlexCopIII adapters" => "Technisat/B2C2 Air/Sky/Cable2PC PCI" in case of a PCI card
+OR
c.)"Multimedia devices" => "DVB/ATSC adapters" => "Technisat/B2C2 FlexcopII(b) and FlexCopIII adapters" => "Technisat/B2C2 Air/Sky/Cable2PC USB" in case of an USB 1.1 adapter
d.)"Multimedia devices" => "DVB/ATSC adapters" => "Technisat/B2C2 FlexcopII(b) and FlexCopIII adapters" => "Enable debug for the B2C2 FlexCop drivers"
Notice: d.) is helpful for troubleshooting
2b) Frontend module part:
-1.) Revision 2.3:
+1.) SkyStar DVB-S Revision 2.3:
a.)"Multimedia devices" => "Customise DVB frontends" => "Customise the frontend modules to build"
b.)"Multimedia devices" => "Customise DVB frontends" => "Zarlink VP310/MT312/ZL10313 based"
-2.) Revision 2.6:
+2.) SkyStar DVB-S Revision 2.6:
a.)"Multimedia devices" => "Customise DVB frontends" => "Customise the frontend modules to build"
b.)"Multimedia devices" => "Customise DVB frontends" => "ST STV0299 based"
-3.) Revision 2.7:
+3.) SkyStar DVB-S Revision 2.7:
a.)"Multimedia devices" => "Customise DVB frontends" => "Customise the frontend modules to build"
b.)"Multimedia devices" => "Customise DVB frontends" => "Samsung S5H1420 based"
c.)"Multimedia devices" => "Customise DVB frontends" => "Integrant ITD1000 Zero IF tuner for DVB-S/DSS"
d.)"Multimedia devices" => "Customise DVB frontends" => "ISL6421 SEC controller"
-4.) Revision 2.8:
+4.) SkyStar DVB-S Revision 2.8:
a.)"Multimedia devices" => "Customise DVB frontends" => "Customise the frontend modules to build"
b.)"Multimedia devices" => "Customise DVB frontends" => "Conexant CX24113/CX24128 tuner for DVB-S/DSS"
c.)"Multimedia devices" => "Customise DVB frontends" => "Conexant CX24123 based"
d.)"Multimedia devices" => "Customise DVB frontends" => "ISL6421 SEC controller"
-5.) DVB-T card:
+5.) AirStar DVB-T card:
a.)"Multimedia devices" => "Customise DVB frontends" => "Customise the frontend modules to build"
b.)"Multimedia devices" => "Customise DVB frontends" => "Zarlink MT352 based"
-6.) DVB-C card:
+6.) CableStar DVB-C card:
a.)"Multimedia devices" => "Customise DVB frontends" => "Customise the frontend modules to build"
b.)"Multimedia devices" => "Customise DVB frontends" => "ST STV0297 based"
-7.) ATSC card 1st generation:
+7.) AirStar ATSC card 1st generation:
a.)"Multimedia devices" => "Customise DVB frontends" => "Customise the frontend modules to build"
b.)"Multimedia devices" => "Customise DVB frontends" => "Broadcom BCM3510"
-8.) ATSC card 2nd generation:
+8.) AirStar ATSC card 2nd generation:
a.)"Multimedia devices" => "Customise DVB frontends" => "Customise the frontend modules to build"
b.)"Multimedia devices" => "Customise DVB frontends" => "NxtWave Communications NXT2002/NXT2004 based"
-c.)"Multimedia devices" => "Customise DVB frontends" => "LG Electronics LGDT3302/LGDT3303 based"
+c.)"Multimedia devices" => "Customise DVB frontends" => "Generic I2C PLL based tuners"
-Author: Uwe Bugla <uwe.bugla@gmx.de> December 2008
+9.) AirStar ATSC card 3rd generation:
+a.)"Multimedia devices" => "Customise DVB frontends" => "Customise the frontend modules to build"
+b.)"Multimedia devices" => "Customise DVB frontends" => "LG Electronics LGDT3302/LGDT3303 based"
+c.)"Multimedia devices" => "Customise analog and hybrid tuner modules to build" => "Simple tuner support"
+
+Author: Uwe Bugla <uwe.bugla@gmx.de> February 2009
diff --git a/drivers/media/dvb/b2c2/flexcop-hw-filter.c b/drivers/media/dvb/b2c2/flexcop-hw-filter.c
index b386cc66c6b..451974ba32f 100644
--- a/drivers/media/dvb/b2c2/flexcop-hw-filter.c
+++ b/drivers/media/dvb/b2c2/flexcop-hw-filter.c
@@ -192,6 +192,7 @@ int flexcop_pid_feed_control(struct flexcop_device *fc, struct dvb_demux_feed *d
return 0;
}
+EXPORT_SYMBOL(flexcop_pid_feed_control);
void flexcop_hw_filter_init(struct flexcop_device *fc)
{
diff --git a/drivers/media/dvb/b2c2/flexcop-pci.c b/drivers/media/dvb/b2c2/flexcop-pci.c
index 5b30dfc7846..76e37fd96bb 100644
--- a/drivers/media/dvb/b2c2/flexcop-pci.c
+++ b/drivers/media/dvb/b2c2/flexcop-pci.c
@@ -13,9 +13,9 @@ static int enable_pid_filtering = 1;
module_param(enable_pid_filtering, int, 0444);
MODULE_PARM_DESC(enable_pid_filtering, "enable hardware pid filtering: supported values: 0 (fullts), 1");
-static int irq_chk_intv;
+static int irq_chk_intv = 100;
module_param(irq_chk_intv, int, 0644);
-MODULE_PARM_DESC(irq_chk_intv, "set the interval for IRQ watchdog (currently just debugging).");
+MODULE_PARM_DESC(irq_chk_intv, "set the interval for IRQ streaming watchdog.");
#ifdef CONFIG_DVB_B2C2_FLEXCOP_DEBUG
#define dprintk(level,args...) \
@@ -34,7 +34,9 @@ MODULE_PARM_DESC(irq_chk_intv, "set the interval for IRQ watchdog (currently jus
static int debug;
module_param(debug, int, 0644);
-MODULE_PARM_DESC(debug, "set debug level (1=info,2=regs,4=TS,8=irqdma (|-able))." DEBSTATUS);
+MODULE_PARM_DESC(debug,
+ "set debug level (1=info,2=regs,4=TS,8=irqdma,16=check (|-able))."
+ DEBSTATUS);
#define DRIVER_VERSION "0.1"
#define DRIVER_NAME "Technisat/B2C2 FlexCop II/IIb/III Digital TV PCI Driver"
@@ -58,6 +60,8 @@ struct flexcop_pci {
int active_dma1_addr; /* 0 = addr0 of dma1; 1 = addr1 of dma1 */
u32 last_dma1_cur_pos; /* position of the pointer last time the timer/packet irq occured */
int count;
+ int count_prev;
+ int stream_problem;
spinlock_t irq_lock;
@@ -103,18 +107,32 @@ static void flexcop_pci_irq_check_work(struct work_struct *work)
container_of(work, struct flexcop_pci, irq_check_work.work);
struct flexcop_device *fc = fc_pci->fc_dev;
- flexcop_ibi_value v = fc->read_ibi_reg(fc,sram_dest_reg_714);
-
- flexcop_dump_reg(fc_pci->fc_dev,dma1_000,4);
-
- if (v.sram_dest_reg_714.net_ovflow_error)
- deb_chk("sram net_ovflow_error\n");
- if (v.sram_dest_reg_714.media_ovflow_error)
- deb_chk("sram media_ovflow_error\n");
- if (v.sram_dest_reg_714.cai_ovflow_error)
- deb_chk("sram cai_ovflow_error\n");
- if (v.sram_dest_reg_714.cai_ovflow_error)
- deb_chk("sram cai_ovflow_error\n");
+ if (fc->feedcount) {
+
+ if (fc_pci->count == fc_pci->count_prev) {
+ deb_chk("no IRQ since the last check\n");
+ if (fc_pci->stream_problem++ == 3) {
+ struct dvb_demux_feed *feed;
+
+ spin_lock_irq(&fc->demux.lock);
+ list_for_each_entry(feed, &fc->demux.feed_list,
+ list_head) {
+ flexcop_pid_feed_control(fc, feed, 0);
+ }
+
+ list_for_each_entry(feed, &fc->demux.feed_list,
+ list_head) {
+ flexcop_pid_feed_control(fc, feed, 1);
+ }
+ spin_unlock_irq(&fc->demux.lock);
+
+ fc_pci->stream_problem = 0;
+ }
+ } else {
+ fc_pci->stream_problem = 0;
+ fc_pci->count_prev = fc_pci->count;
+ }
+ }
schedule_delayed_work(&fc_pci->irq_check_work,
msecs_to_jiffies(irq_chk_intv < 100 ? 100 : irq_chk_intv));
@@ -216,16 +234,12 @@ static int flexcop_pci_stream_control(struct flexcop_device *fc, int onoff)
flexcop_dma_control_timer_irq(fc,FC_DMA_1,1);
deb_irq("IRQ enabled\n");
+ fc_pci->count_prev = fc_pci->count;
+
// fc_pci->active_dma1_addr = 0;
// flexcop_dma_control_size_irq(fc,FC_DMA_1,1);
- if (irq_chk_intv > 0)
- schedule_delayed_work(&fc_pci->irq_check_work,
- msecs_to_jiffies(irq_chk_intv < 100 ? 100 : irq_chk_intv));
} else {
- if (irq_chk_intv > 0)
- cancel_delayed_work(&fc_pci->irq_check_work);
-
flexcop_dma_control_timer_irq(fc,FC_DMA_1,0);
deb_irq("IRQ disabled\n");
@@ -299,8 +313,6 @@ static int flexcop_pci_init(struct flexcop_pci *fc_pci)
IRQF_SHARED, DRIVER_NAME, fc_pci)) != 0)
goto err_pci_iounmap;
-
-
fc_pci->init_state |= FC_PCI_INIT;
return ret;
@@ -375,6 +387,10 @@ static int flexcop_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
INIT_DELAYED_WORK(&fc_pci->irq_check_work, flexcop_pci_irq_check_work);
+ if (irq_chk_intv > 0)
+ schedule_delayed_work(&fc_pci->irq_check_work,
+ msecs_to_jiffies(irq_chk_intv < 100 ? 100 : irq_chk_intv));
+
return ret;
err_fc_exit:
@@ -393,6 +409,9 @@ static void flexcop_pci_remove(struct pci_dev *pdev)
{
struct flexcop_pci *fc_pci = pci_get_drvdata(pdev);
+ if (irq_chk_intv > 0)
+ cancel_delayed_work(&fc_pci->irq_check_work);
+
flexcop_pci_dma_exit(fc_pci);
flexcop_device_exit(fc_pci->fc_dev);
flexcop_pci_exit(fc_pci);
diff --git a/drivers/media/dvb/b2c2/flexcop.c b/drivers/media/dvb/b2c2/flexcop.c
index 676413a915b..91068952b50 100644
--- a/drivers/media/dvb/b2c2/flexcop.c
+++ b/drivers/media/dvb/b2c2/flexcop.c
@@ -212,8 +212,7 @@ void flexcop_reset_block_300(struct flexcop_device *fc)
v210.sw_reset_210.Block_reset_enable = 0xb2;
fc->write_ibi_reg(fc,sw_reset_210,v210);
- msleep(1);
-
+ udelay(1000);
fc->write_ibi_reg(fc,ctrl_208,v208_save);
}
diff --git a/drivers/media/video/em28xx/em28xx-audio.c b/drivers/media/video/em28xx/em28xx-audio.c
index 5d882a44e3e..2ac738fa6a0 100644
--- a/drivers/media/video/em28xx/em28xx-audio.c
+++ b/drivers/media/video/em28xx/em28xx-audio.c
@@ -463,6 +463,8 @@ static int em28xx_audio_init(struct em28xx *dev)
pcm->info_flags = 0;
pcm->private_data = dev;
strcpy(pcm->name, "Empia 28xx Capture");
+
+ snd_card_set_dev(card, &dev->udev->dev);
strcpy(card->driver, "Empia Em28xx Audio");
strcpy(card->shortname, "Em28xx Audio");
strcpy(card->longname, "Empia Em28xx Audio");
diff --git a/drivers/media/video/pxa_camera.c b/drivers/media/video/pxa_camera.c
index a1d6008efcb..07c334f25aa 100644
--- a/drivers/media/video/pxa_camera.c
+++ b/drivers/media/video/pxa_camera.c
@@ -1155,23 +1155,23 @@ static int pxa_camera_set_fmt(struct soc_camera_device *icd,
{
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
struct pxa_camera_dev *pcdev = ici->priv;
- const struct soc_camera_data_format *host_fmt, *cam_fmt = NULL;
- const struct soc_camera_format_xlate *xlate;
+ const struct soc_camera_data_format *cam_fmt = NULL;
+ const struct soc_camera_format_xlate *xlate = NULL;
struct soc_camera_sense sense = {
.master_clock = pcdev->mclk,
.pixel_clock_max = pcdev->ciclk / 4,
};
- int ret, buswidth;
+ int ret;
- xlate = soc_camera_xlate_by_fourcc(icd, pixfmt);
- if (!xlate) {
- dev_warn(&ici->dev, "Format %x not found\n", pixfmt);
- return -EINVAL;
- }
+ if (pixfmt) {
+ xlate = soc_camera_xlate_by_fourcc(icd, pixfmt);
+ if (!xlate) {
+ dev_warn(&ici->dev, "Format %x not found\n", pixfmt);
+ return -EINVAL;
+ }
- buswidth = xlate->buswidth;
- host_fmt = xlate->host_fmt;
- cam_fmt = xlate->cam_fmt;
+ cam_fmt = xlate->cam_fmt;
+ }
/* If PCLK is used to latch data from the sensor, check sense */
if (pcdev->platform_flags & PXA_CAMERA_PCLK_EN)
@@ -1201,8 +1201,8 @@ static int pxa_camera_set_fmt(struct soc_camera_device *icd,
}
if (pixfmt && !ret) {
- icd->buswidth = buswidth;
- icd->current_fmt = host_fmt;
+ icd->buswidth = xlate->buswidth;
+ icd->current_fmt = xlate->host_fmt;
}
return ret;
diff --git a/drivers/media/video/sh_mobile_ceu_camera.c b/drivers/media/video/sh_mobile_ceu_camera.c
index 9a2586b07a0..ddcb81d0b81 100644
--- a/drivers/media/video/sh_mobile_ceu_camera.c
+++ b/drivers/media/video/sh_mobile_ceu_camera.c
@@ -603,21 +603,18 @@ static int sh_mobile_ceu_set_fmt(struct soc_camera_device *icd,
const struct soc_camera_format_xlate *xlate;
int ret;
+ if (!pixfmt)
+ return icd->ops->set_fmt(icd, pixfmt, rect);
+
xlate = soc_camera_xlate_by_fourcc(icd, pixfmt);
if (!xlate) {
dev_warn(&ici->dev, "Format %x not found\n", pixfmt);
return -EINVAL;
}
- switch (pixfmt) {
- case 0: /* Only geometry change */
- ret = icd->ops->set_fmt(icd, pixfmt, rect);
- break;
- default:
- ret = icd->ops->set_fmt(icd, xlate->cam_fmt->fourcc, rect);
- }
+ ret = icd->ops->set_fmt(icd, xlate->cam_fmt->fourcc, rect);
- if (pixfmt && !ret) {
+ if (!ret) {
icd->buswidth = xlate->buswidth;
icd->current_fmt = xlate->host_fmt;
pcdev->camera_fmt = xlate->cam_fmt;