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authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-12 12:39:17 +0900
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-12 12:39:17 +0900
commit4f1cd91497774488ed16119ec3f54b3daf1561de (patch)
tree190ed2b2ecbbfe371740cf6e29d9aefd25ecc3e3 /drivers/media/i2c/ths7303.c
parent759e00b8a8883be28357426206d2f1752827e38a (diff)
parentbf3b202b41999f88f091632f13842b7234bd58b7 (diff)
downloadblackbird-obmc-linux-4f1cd91497774488ed16119ec3f54b3daf1561de.tar.gz
blackbird-obmc-linux-4f1cd91497774488ed16119ec3f54b3daf1561de.zip
Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull second set of media updates from Mauro Carvalho Chehab: "Despite its size, most of the stuff here is trivial. This series contains: - s5p-mfc: additions at the driver and at the core to support H.264 hardware codec; - Some improvements at s5p and davinci embedded drivers; - Some V4L2 compliance fixes applied on a few drivers; - Several random trivial patches, including several fixes and a few new board support additions; Notes: 1) Some Exynos media patches were dependent on some -arm fixes that got merged on changeset 782cd9e. That's why this pull request is based that changeset. 2) As promised, I reviewed the pending VB2 DMABUF series. While setting a test environment, it was noticed that the upstream support for Samsung Exynos 4 boards (smdk310 and Origen) are broken upstream, likely due to regressions: both defconfigs are wrong and regulator settings for both boards are broken. That, allied with some bug at the dummy regulator driver, causes OOPSes during boot time. Long story short: even fixing the above, the proposed patches OOPSed when running the DMABUF test. Not sure yet if the OOPSes are due to some other undetected regressions, or due to some bug on the patches. Due to the above, DMABUF patches for vb2 got NACKed for 3.7." * 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (109 commits) [media] m5mols: Add missing #include <linux/sizes.h> [media] stk1160: Add support for S-Video input Revert "[media] omap3isp: Replace cpu_is_omap3630() with ISP revision check" [media] dvb: LNA implementation changes [media] v4l2-ioctl: fix W=1 warnings [media] v4l2-ioctl: add blocks check for VIDIOC_SUBDEV_G/S_EDID [media] omap3isp: Fix compilation error in ispreg.h [media] rc-msi-digivox-ii: Add full scan keycodes [media] cx25821: testing the wrong variable [media] tda18271-common: hold the I2C adapter during write transfers [media] ds3000: add module parameter to force firmware upload [media] drivers/media: Remove unnecessary semicolon [media] winbond: remove space from driver name [media] iguanair: cannot send data from the stack [media] omap3isp: Replace cpu_is_omap3630() with ISP revision check [media] dvb-usb: print small buffers via %*ph [media] uvc: Add return code check at vb2_queue_init() [media] em28xx: Replace memcpy with struct assignment [media] bt8xx: Add video4linux control V4L2_CID_COLOR_KILLER [media] mem2mem_testdev: Use devm_kzalloc() in probe ... Conflicts: arch/arm/mach-davinci/include/mach/da8xx.h
Diffstat (limited to 'drivers/media/i2c/ths7303.c')
-rw-r--r--drivers/media/i2c/ths7303.c106
1 files changed, 90 insertions, 16 deletions
diff --git a/drivers/media/i2c/ths7303.c b/drivers/media/i2c/ths7303.c
index e5c0eedebc58..c31cc04fffd2 100644
--- a/drivers/media/i2c/ths7303.c
+++ b/drivers/media/i2c/ths7303.c
@@ -28,6 +28,18 @@
#include <media/v4l2-subdev.h>
#include <media/v4l2-chip-ident.h>
+#define THS7303_CHANNEL_1 1
+#define THS7303_CHANNEL_2 2
+#define THS7303_CHANNEL_3 3
+
+enum ths7303_filter_mode {
+ THS7303_FILTER_MODE_480I_576I,
+ THS7303_FILTER_MODE_480P_576P,
+ THS7303_FILTER_MODE_720P_1080I,
+ THS7303_FILTER_MODE_1080P,
+ THS7303_FILTER_MODE_DISABLE
+};
+
MODULE_DESCRIPTION("TI THS7303 video amplifier driver");
MODULE_AUTHOR("Chaithrika U S");
MODULE_LICENSE("GPL");
@@ -37,35 +49,96 @@ module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "Debug level 0-1");
/* following function is used to set ths7303 */
-static int ths7303_setvalue(struct v4l2_subdev *sd, v4l2_std_id std)
+int ths7303_setval(struct v4l2_subdev *sd, enum ths7303_filter_mode mode)
{
+ u8 input_bias_chroma = 3;
+ u8 input_bias_luma = 3;
+ int disable = 0;
int err = 0;
- u8 val;
- struct i2c_client *client;
+ u8 val = 0;
+ u8 temp;
- client = v4l2_get_subdevdata(sd);
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
- if (std & (V4L2_STD_ALL & ~V4L2_STD_SECAM)) {
- val = 0x02;
- v4l2_dbg(1, debug, sd, "setting value for SDTV format\n");
- } else {
- val = 0x00;
- v4l2_dbg(1, debug, sd, "disabling all channels\n");
+ if (!client)
+ return -EINVAL;
+
+ switch (mode) {
+ case THS7303_FILTER_MODE_1080P:
+ val = (3 << 6);
+ val |= (3 << 3);
+ break;
+ case THS7303_FILTER_MODE_720P_1080I:
+ val = (2 << 6);
+ val |= (2 << 3);
+ break;
+ case THS7303_FILTER_MODE_480P_576P:
+ val = (1 << 6);
+ val |= (1 << 3);
+ break;
+ case THS7303_FILTER_MODE_480I_576I:
+ break;
+ case THS7303_FILTER_MODE_DISABLE:
+ pr_info("mode disabled\n");
+ /* disable all channels */
+ disable = 1;
+ default:
+ /* disable all channels */
+ disable = 1;
}
+ /* Setup channel 2 - Luma - Green */
+ temp = val;
+ if (!disable)
+ val |= input_bias_luma;
+ err = i2c_smbus_write_byte_data(client, THS7303_CHANNEL_2, val);
+ if (err)
+ goto out;
- err |= i2c_smbus_write_byte_data(client, 0x01, val);
- err |= i2c_smbus_write_byte_data(client, 0x02, val);
- err |= i2c_smbus_write_byte_data(client, 0x03, val);
+ /* setup two chroma channels */
+ if (!disable)
+ temp |= input_bias_chroma;
+ err = i2c_smbus_write_byte_data(client, THS7303_CHANNEL_1, temp);
if (err)
- v4l2_err(sd, "write failed\n");
+ goto out;
+ err = i2c_smbus_write_byte_data(client, THS7303_CHANNEL_3, temp);
+ if (err)
+ goto out;
+ return err;
+out:
+ pr_info("write byte data failed\n");
return err;
}
static int ths7303_s_std_output(struct v4l2_subdev *sd, v4l2_std_id norm)
{
- return ths7303_setvalue(sd, norm);
+ if (norm & (V4L2_STD_ALL & ~V4L2_STD_SECAM))
+ return ths7303_setval(sd, THS7303_FILTER_MODE_480I_576I);
+ else
+ return ths7303_setval(sd, THS7303_FILTER_MODE_DISABLE);
+}
+
+/* for setting filter for HD output */
+static int ths7303_s_dv_timings(struct v4l2_subdev *sd,
+ struct v4l2_dv_timings *dv_timings)
+{
+ u32 height = dv_timings->bt.height;
+ int interlaced = dv_timings->bt.interlaced;
+ int res = 0;
+
+ if (height == 1080 && !interlaced)
+ res = ths7303_setval(sd, THS7303_FILTER_MODE_1080P);
+ else if ((height == 720 && !interlaced) ||
+ (height == 1080 && interlaced))
+ res = ths7303_setval(sd, THS7303_FILTER_MODE_720P_1080I);
+ else if ((height == 480 || height == 576) && !interlaced)
+ res = ths7303_setval(sd, THS7303_FILTER_MODE_480P_576P);
+ else
+ /* disable all channels */
+ res = ths7303_setval(sd, THS7303_FILTER_MODE_DISABLE);
+
+ return res;
}
static int ths7303_g_chip_ident(struct v4l2_subdev *sd,
@@ -78,6 +151,7 @@ static int ths7303_g_chip_ident(struct v4l2_subdev *sd,
static const struct v4l2_subdev_video_ops ths7303_video_ops = {
.s_std_output = ths7303_s_std_output,
+ .s_dv_timings = ths7303_s_dv_timings,
};
static const struct v4l2_subdev_core_ops ths7303_core_ops = {
@@ -107,7 +181,7 @@ static int ths7303_probe(struct i2c_client *client,
v4l2_i2c_subdev_init(sd, client, &ths7303_ops);
- return ths7303_setvalue(sd, std_id);
+ return ths7303_s_std_output(sd, std_id);
}
static int ths7303_remove(struct i2c_client *client)
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