Hi,
I'm in the same place, I found that the system freezes when I send a
VIDIOC_STREAMON ioctl, but I don't know how can I debug the kernel.
I'm doing the same in v3.18 with same results:
All the consoles blocked and only an info message, like this.
[ 367.701660] INFO: rcu_sched self-detected stall on CPU { 0}
(t=2100 jiffies g=6237 c=6236 q=138)
Does anyone know something about what happens?
Carlos S.
2014-11-18 12:41 GMT+01:00 Carlos Sanmartín Bustos <carsanbu@xxxxxxxxx>:
> Hi all,
>
> I have one question about capture with the OMAP3ISP.
> I'm trying to capture images with the MT0V034 sensor included in the
> IGEP Cam Bird with the IGEPv2 board. I'm using the 3.17 mainline
> kernel with some modifications to register the sensor and configure
> the pin muxes.
> The sensor is registering correctly and I can configure the media
> pipeline, but when I try to capture with Yavta all the system freezes
> when Yavta try to queue the buffers, then the sensor is throwing data
> by the parallel port, I can see this, but ISP seems don't get nothing.
>
> This is the patch I wrote for this:
>
> diff --git a/arch/arm/boot/dts/omap3-igep.dtsi
> b/arch/arm/boot/dts/omap3-igep.dtsi
> index e2d163b..a184af9 100644
> --- a/arch/arm/boot/dts/omap3-igep.dtsi
> +++ b/arch/arm/boot/dts/omap3-igep.dtsi
> @@ -159,7 +159,7 @@
> &i2c2 {
> pinctrl-names = "default";
> pinctrl-0 = <&i2c2_pins>;
> - clock-frequency = <400000>;
> + clock-frequency = <50000>;
> };
>
> &i2c3 {
> diff --git a/arch/arm/boot/dts/omap3-igep0020.dts
> b/arch/arm/boot/dts/omap3-igep0020.dts
> index b22caaa..47128b2 100644
> --- a/arch/arm/boot/dts/omap3-igep0020.dts
> +++ b/arch/arm/boot/dts/omap3-igep0020.dts
> @@ -109,6 +109,7 @@
> pinctrl-0 = <
> &tfp410_pins
> &dss_dpi_pins
> + &cam_pins
> >;
>
> tfp410_pins: pinmux_tfp410_pins {
> @@ -117,6 +118,31 @@
> >;
> };
>
> + cam_pins: pinmux_cam_pins {
> + pinctrl-single,pins = <
> + OMAP3_CORE1_IOPAD(0x210c, PIN_INPUT |
> MUX_MODE0) /* cam_hs.cam_hs */
> + OMAP3_CORE1_IOPAD(0x210e, PIN_INPUT |
> MUX_MODE0) /* cam_vs.cam_vs */
> + OMAP3_CORE1_IOPAD(0x2110, PIN_OUTPUT|
> MUX_MODE0) /* cam_xclka.cam_xclka */
> + OMAP3_CORE1_IOPAD(0x2112, PIN_INPUT |
> MUX_MODE0) /* cam_pclk.cam_pclk */
> + OMAP3_CORE1_IOPAD(0x2114, PIN_INPUT |
> MUX_MODE4) /* cam_fld.gpio98 */
> + OMAP3_CORE1_IOPAD(0x2116, PIN_INPUT |
> MUX_MODE0) /* cam_d0.cam_d0 */
> + OMAP3_CORE1_IOPAD(0x2118, PIN_INPUT |
> MUX_MODE0) /* cam_d1.cam_d1 */
> + OMAP3_CORE1_IOPAD(0x211a, PIN_INPUT |
> MUX_MODE0) /* cam_d2.cam_d2 */
> + OMAP3_CORE1_IOPAD(0x211c, PIN_INPUT |
> MUX_MODE0) /* cam_d3.cam_d3 */
> + OMAP3_CORE1_IOPAD(0x211e, PIN_INPUT |
> MUX_MODE0) /* cam_d4.cam_d4 */
> + OMAP3_CORE1_IOPAD(0x2120, PIN_INPUT |
> MUX_MODE0) /* cam_d5.cam_d5 */
> + OMAP3_CORE1_IOPAD(0x2122, PIN_INPUT |
> MUX_MODE0) /* cam_d6.cam_d6 */
> + OMAP3_CORE1_IOPAD(0x2124, PIN_INPUT |
> MUX_MODE0) /* cam_d7.cam_d7 */
> + OMAP3_CORE1_IOPAD(0x2126, PIN_INPUT |
> MUX_MODE0) /* cam_d8.cam_d8 */
> + OMAP3_CORE1_IOPAD(0x2128, PIN_INPUT |
> MUX_MODE0) /* cam_d9.cam_d9 */
> + OMAP3_CORE1_IOPAD(0x212a, PIN_INPUT |
> MUX_MODE0) /* cam_d10.cam_d10 */
> + OMAP3_CORE1_IOPAD(0x212c, PIN_INPUT |
> MUX_MODE0) /* cam_d11.cam_d11 */
> + OMAP3_CORE1_IOPAD(0x212e, PIN_INPUT |
> MUX_MODE4) /* cam_xclkb.gpio111 */
> + OMAP3_CORE1_IOPAD(0x2130, PIN_INPUT |
> MUX_MODE0) /* cam_wen.cam_wen */
> + OMAP3_CORE1_IOPAD(0x2132, PIN_INPUT |
> MUX_MODE0) /* cam_strobe.cam_strobe */
> + >;
> + };
> +
> dss_dpi_pins: pinmux_dss_dpi_pins {
> pinctrl-single,pins = <
> 0x0a4 (PIN_OUTPUT | MUX_MODE0) /* dss_pclk.dss_pclk */
> diff --git a/arch/arm/mach-omap2/pdata-quirks.c
> b/arch/arm/mach-omap2/pdata-quirks.c
> index c95346c..cf4bd2d 100644
> --- a/arch/arm/mach-omap2/pdata-quirks.c
> +++ b/arch/arm/mach-omap2/pdata-quirks.c
> @@ -10,17 +10,25 @@
> #include <linux/clk.h>
> #include <linux/davinci_emac.h>
> #include <linux/gpio.h>
> +#include <linux/i2c.h>
> #include <linux/init.h>
> #include <linux/kernel.h>
> #include <linux/of_platform.h>
> +#include <linux/regulator/fixed.h>
> +#include <linux/regulator/machine.h>
> #include <linux/wl12xx.h>
>
> +#include <media/mt9v032.h>
> +#include <media/omap3isp.h>
> +
> #include <linux/platform_data/pinctrl-single.h>
> #include <linux/platform_data/iommu-omap.h>
>
> #include "am35xx.h"
> #include "common.h"
> #include "common-board-devices.h"
> +#include "devices.h"
> #include "dss-common.h"
> #include "control.h"
> #include "omap_device.h"
> @@ -35,6 +42,61 @@ struct pdata_init {
> struct of_dev_auxdata omap_auxdata_lookup[];
> static struct twl4030_gpio_platform_data twl_gpio_auxdata;
>
> +static struct regulator_consumer_supply igep00x0_dummy_supplies[] = {
> + REGULATOR_SUPPLY("vaa", "1-005c"),
> +};
> +
> +static const s64 mt9v032_link_freqs[] = {
> + 13000000,
> + 26600000,
> + 27000000,
> + 0,
> +};
> +
> +static struct mt9v032_platform_data mt9v032_pdata = {
> + .link_freqs = mt9v032_link_freqs,
> + .link_def_freq = 13000000,
> +};
> +
> +static struct i2c_board_info mt9v032_i2c_device = {
> + I2C_BOARD_INFO("mt9v032", 0xb8 >> 1),
> + .platform_data = &mt9v032_pdata,
> +};
> +
> +static struct isp_subdev_i2c_board_info mt9v032_board_info[] = {
> + {
> + .board_info = &mt9v032_i2c_device,
> + .i2c_adapter_id = 1,
> + },
> + { NULL, 0, },
> +};
> +
> +
> +static struct isp_v4l2_subdevs_group igep00x0_camera_subdevs[] = {
> + {
> + .subdevs = mt9v032_board_info,
> + .interface = ISP_INTERFACE_PARALLEL,
> + .bus = {
> + .parallel = {
> + .data_lane_shift = ISP_LANE_SHIFT_0,
> + /* Sample on falling edge */
> + .clk_pol = 1,
> + }
> + },
> + },
> + { },
> +};
> +
> +static struct isp_platform_data igep00x0_isp_pdata = {
> + .xclks = {
> + [0] = {
> + .dev_id = "1-005c",
> + },
> + },
> + .subdevs = igep00x0_camera_subdevs,
> +};
> +
> +
> #if IS_ENABLED(CONFIG_WL12XX)
>
> static struct wl12xx_platform_data wl12xx __initdata;
> @@ -141,6 +203,12 @@ static void __init omap3_sbc_t3530_legacy_init(void)
>
> static void __init omap3_igep0020_legacy_init(void)
> {
> + clk_add_alias(NULL, "1-005c", "cam_xclka", NULL);
> +
> + regulator_register_fixed(0, igep00x0_dummy_supplies,
> + ARRAY_SIZE(igep00x0_dummy_supplies));
> +
> + omap3_init_camera(&igep00x0_isp_pdata);
> }
>
> And in runtime I test with this pipeline:
>
> Media controller API version 0.0.0
>
>
>
> Media device information
>
> ------------------------
>
> driver omap3isp
>
> model TI OMAP3 ISP
>
> serial
>
> bus info
>
> hw revision 0xf0
>
> driver version 0.0.0
>
>
>
> Device topology
>
> - entity 1: OMAP3 ISP CCP2 (2 pads, 2 links)
>
> type V4L2 subdev subtype Unknown flags 0
>
> device node name /dev/v4l-subdev0
>
> pad0: Sink
>
> [fmt:SGRBG10/4096x4096]
>
> <- "OMAP3 ISP CCP2 input":0 []
>
> pad1: Source
>
> [fmt:SGRBG10/4096x4096]
>
> -> "OMAP3 ISP CCDC":0 []
>
>
>
> - entity 2: OMAP3 ISP CCP2 input (1 pad, 1 link)
>
> type Node subtype V4L flags 0
>
> device node name /dev/video0
>
> pad0: Source
>
> -> "OMAP3 ISP CCP2":0 []
>
>
>
> - entity 3: OMAP3 ISP CSI2a (2 pads, 2 links)
>
> type V4L2 subdev subtype Unknown flags 0
>
> device node name /dev/v4l-subdev1
>
> pad0: Sink
>
> [fmt:SGRBG10/4096x4096]
>
> pad1: Source
>
> [fmt:SGRBG10/4096x4096]
>
> -> "OMAP3 ISP CSI2a output":0 []
>
> -> "OMAP3 ISP CCDC":0 []
>
>
>
> - entity 4: OMAP3 ISP CSI2a output (1 pad, 1 link)
>
> type Node subtype V4L flags 0
>
> device node name /dev/video1
>
> pad0: Sink
>
> <- "OMAP3 ISP CSI2a":1 []
>
>
>
> - entity 5: OMAP3 ISP CCDC (3 pads, 9 links)
>
> type V4L2 subdev subtype Unknown flags 0
>
> device node name /dev/v4l-subdev2
>
> pad0: Sink
>
> [fmt:SGRBG10/752x480]
>
> <- "OMAP3 ISP CCP2":1 []
>
> <- "OMAP3 ISP CSI2a":1 []
>
> <- "mt9v032 1-005c":0 [ENABLED]
>
> pad1: Source
>
> [fmt:SGRBG10/752x480
>
> crop.bounds:(0,0)/752x480
>
> crop:(0,0)/752x480]
>
> -> "OMAP3 ISP CCDC output":0 []
>
> -> "OMAP3 ISP resizer":0 []
>
> pad2: Source
>
> [fmt:SGRBG10/752x479]
>
> -> "OMAP3 ISP preview":0 [ENABLED]
>
> -> "OMAP3 ISP AEWB":0 [ENABLED,IMMUTABLE]
>
> -> "OMAP3 ISP AF":0 [ENABLED,IMMUTABLE]
>
> -> "OMAP3 ISP histogram":0 [ENABLED,IMMUTABLE]
>
>
>
> - entity 6: OMAP3 ISP CCDC output (1 pad, 1 link)
>
> type Node subtype V4L flags 0
>
> device node name /dev/video2
>
> pad0: Sink
>
> <- "OMAP3 ISP CCDC":1 []
>
>
>
> - entity 7: OMAP3 ISP preview (2 pads, 4 links)
>
> type V4L2 subdev subtype Unknown flags 0
>
> device node name /dev/v4l-subdev3
>
> pad0: Sink
>
> [fmt:SGRBG10/752x479
>
> crop.bounds:(10,4)/734x471
>
> crop:(10,4)/734x471]
>
> <- "OMAP3 ISP CCDC":2 [ENABLED]
>
> <- "OMAP3 ISP preview input":0 []
>
> pad1: Source
>
> [fmt:UYVY/734x471]
>
> -> "OMAP3 ISP preview output":0 [ENABLED]
>
> -> "OMAP3 ISP resizer":0 []
>
>
>
> - entity 8: OMAP3 ISP preview input (1 pad, 1 link)
>
> type Node subtype V4L flags 0
>
> device node name /dev/video3
>
> pad0: Source
>
> -> "OMAP3 ISP preview":0 []
>
>
>
> - entity 9: OMAP3 ISP preview output (1 pad, 1 link)
>
> type Node subtype V4L flags 0
>
> device node name /dev/video4
>
> pad0: Sink
>
> <- "OMAP3 ISP preview":1 [ENABLED]
>
>
>
> - entity 10: OMAP3 ISP resizer (2 pads, 4 links)
>
> type V4L2 subdev subtype Unknown flags 0
>
> device node name /dev/v4l-subdev4
>
> pad0: Sink
>
> [fmt:YUYV/4095x4095
>
> crop.bounds:(4,6)/4086x4082
>
> crop:(4,6)/4086x4082]
>
> <- "OMAP3 ISP CCDC":1 []
>
> <- "OMAP3 ISP preview":1 []
>
> <- "OMAP3 ISP resizer input":0 []
>
> pad1: Source
>
> [fmt:YUYV/4096x4095]
>
> -> "OMAP3 ISP resizer output":0 []
>
>
>
> - entity 11: OMAP3 ISP resizer input (1 pad, 1 link)
>
> type Node subtype V4L flags 0
>
> device node name /dev/video5
>
> pad0: Source
>
> -> "OMAP3 ISP resizer":0 []
>
>
>
> - entity 12: OMAP3 ISP resizer output (1 pad, 1 link)
>
> type Node subtype V4L flags 1
>
> device node name /dev/video6
>
> pad0: Sink
>
> <- "OMAP3 ISP resizer":1 []
>
>
>
> - entity 13: OMAP3 ISP AEWB (1 pad, 1 link)
>
> type V4L2 subdev subtype Unknown flags 0
>
> device node name /dev/v4l-subdev5
>
> pad0: Sink
>
> <- "OMAP3 ISP CCDC":2 [ENABLED,IMMUTABLE]
>
>
>
> - entity 14: OMAP3 ISP AF (1 pad, 1 link)
>
> type V4L2 subdev subtype Unknown flags 0
>
> device node name /dev/v4l-subdev6
>
> pad0: Sink
>
> <- "OMAP3 ISP CCDC":2 [ENABLED,IMMUTABLE]
>
>
>
> - entity 15: OMAP3 ISP histogram (1 pad, 1 link)
>
> type V4L2 subdev subtype Unknown flags 0
>
> device node name /dev/v4l-subdev7
>
> pad0: Sink
>
> <- "OMAP3 ISP CCDC":2 [ENABLED,IMMUTABLE]
>
>
>
> - entity 16: mt9v032 1-005c (1 pad, 1 link)
>
> type V4L2 subdev subtype Unknown flags 0
>
> device node name /dev/v4l-subdev8
>
> pad0: Source
>
> [fmt:SGRBG10/752x480
>
> crop:(1,5)/752x480]
>
> -> "OMAP3 ISP CCDC":0 [ENABLED]
>
> Have you some idea about what is not working? I think it's something
> in OMAP3 ISP but I can't find the reason.
>
> Thanks,
>
> Carlos S.
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