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[media] atmel-isc: add the isc pipeline function

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Image Sensor Controller has an internal image processor.
It can convert raw format to the other formats, like
RGB565, YUV420P. A module parameter 'sensor_preferred'
is used to enable or disable the pipeline function.
Some v4l2 controls are added to tuning the image when
the pipeline function is enabled.

Signed-off-by: Songjun Wu <songjun.wu@microchip.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Songjun Wu 2017-01-24 06:05:57 -02:00 committed by Mauro Carvalho Chehab
parent 50ad58f9dc
commit 93d4a26c3d
2 changed files with 617 additions and 106 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

102
drivers/media/platform/atmel/atmel-isc-regs.h
View File

@ -65,6 +65,7 @@
#define ISC_INTSR 0x00000034
#define ISC_INT_DDONE BIT(8)
#define ISC_INT_HISDONE BIT(12)
/* ISC White Balance Control Register */
#define ISC_WB_CTRL 0x00000058
@ -72,30 +73,98 @@
/* ISC White Balance Configuration Register */
#define ISC_WB_CFG 0x0000005c
/* ISC White Balance Offset for R, GR Register */
#define ISC_WB_O_RGR 0x00000060
/* ISC White Balance Offset for B, GB Register */
#define ISC_WB_O_BGR 0x00000064
/* ISC White Balance Gain for R, GR Register */
#define ISC_WB_G_RGR 0x00000068
/* ISC White Balance Gain for B, GB Register */
#define ISC_WB_G_BGR 0x0000006c
/* ISC Color Filter Array Control Register */
#define ISC_CFA_CTRL 0x00000070
/* ISC Color Filter Array Configuration Register */
#define ISC_CFA_CFG 0x00000074
#define ISC_CFA_CFG_EITPOL BIT(4)
#define ISC_BAY_CFG_GRGR 0x0
#define ISC_BAY_CFG_RGRG 0x1
#define ISC_BAY_CFG_GBGB 0x2
#define ISC_BAY_CFG_BGBG 0x3
#define ISC_BAY_CFG_MASK GENMASK(1, 0)
/* ISC Color Correction Control Register */
#define ISC_CC_CTRL 0x00000078
/* ISC Color Correction RR RG Register */
#define ISC_CC_RR_RG 0x0000007c
/* ISC Color Correction RB OR Register */
#define ISC_CC_RB_OR 0x00000080
/* ISC Color Correction GR GG Register */
#define ISC_CC_GR_GG 0x00000084
/* ISC Color Correction GB OG Register */
#define ISC_CC_GB_OG 0x00000088
/* ISC Color Correction BR BG Register */
#define ISC_CC_BR_BG 0x0000008c
/* ISC Color Correction BB OB Register */
#define ISC_CC_BB_OB 0x00000090
/* ISC Gamma Correction Control Register */
#define ISC_GAM_CTRL 0x00000094
/* ISC_Gamma Correction Blue Entry Register */
#define ISC_GAM_BENTRY 0x00000098
/* ISC_Gamma Correction Green Entry Register */
#define ISC_GAM_GENTRY 0x00000198
/* ISC_Gamma Correction Green Entry Register */
#define ISC_GAM_RENTRY 0x00000298
/* Color Space Conversion Control Register */
#define ISC_CSC_CTRL 0x00000398
/* Color Space Conversion YR YG Register */
#define ISC_CSC_YR_YG 0x0000039c
/* Color Space Conversion YB OY Register */
#define ISC_CSC_YB_OY 0x000003a0
/* Color Space Conversion CBR CBG Register */
#define ISC_CSC_CBR_CBG 0x000003a4
/* Color Space Conversion CBB OCB Register */
#define ISC_CSC_CBB_OCB 0x000003a8
/* Color Space Conversion CRR CRG Register */
#define ISC_CSC_CRR_CRG 0x000003ac
/* Color Space Conversion CRB OCR Register */
#define ISC_CSC_CRB_OCR 0x000003b0
/* Contrast And Brightness Control Register */
#define ISC_CBC_CTRL 0x000003b4
/* Contrast And Brightness Configuration Register */
#define ISC_CBC_CFG 0x000003b8
/* Brightness Register */
#define ISC_CBC_BRIGHT 0x000003bc
#define ISC_CBC_BRIGHT_MASK GENMASK(10, 0)
/* Contrast Register */
#define ISC_CBC_CONTRAST 0x000003c0
#define ISC_CBC_CONTRAST_MASK GENMASK(11, 0)
/* Subsampling 4:4:4 to 4:2:2 Control Register */
#define ISC_SUB422_CTRL 0x000003c4
@ -120,6 +189,27 @@
#define ISC_RLP_CFG_MODE_YYCC_LIMITED 0xc
#define ISC_RLP_CFG_MODE_MASK GENMASK(3, 0)
/* Histogram Control Register */
#define ISC_HIS_CTRL 0x000003d4
#define ISC_HIS_CTRL_EN BIT(0)
#define ISC_HIS_CTRL_DIS 0x0
/* Histogram Configuration Register */
#define ISC_HIS_CFG 0x000003d8
#define ISC_HIS_CFG_MODE_GR 0x0
#define ISC_HIS_CFG_MODE_R 0x1
#define ISC_HIS_CFG_MODE_GB 0x2
#define ISC_HIS_CFG_MODE_B 0x3
#define ISC_HIS_CFG_MODE_Y 0x4
#define ISC_HIS_CFG_MODE_RAW 0x5
#define ISC_HIS_CFG_MODE_YCCIR656 0x6
#define ISC_HIS_CFG_BAYSEL_SHIFT 4
#define ISC_HIS_CFG_RAR BIT(8)
/* DMA Configuration Register */
#define ISC_DCFG 0x000003e0
#define ISC_DCFG_IMODE_PACKED8 0x0
@ -159,7 +249,13 @@
/* DMA Address 0 Register */
#define ISC_DAD0 0x000003ec
/* DMA Stride 0 Register */
#define ISC_DST0 0x000003f0
/* DMA Address 1 Register */
#define ISC_DAD1 0x000003f4
/* DMA Address 2 Register */
#define ISC_DAD2 0x000003fc
/* Histogram Entry */
#define ISC_HIS_ENTRY 0x00000410
#endif

621
drivers/media/platform/atmel/atmel-isc.c
View File

@ -29,6 +29,7 @@
#include <linux/clk-provider.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/math64.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
@ -36,7 +37,9 @@
#include <linux/regmap.h>
#include <linux/videodev2.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-device.h>
#include <media/v4l2-event.h>
#include <media/v4l2-image-sizes.h>
#include <media/v4l2-ioctl.h>
#include <media/v4l2-of.h>
@ -89,10 +92,12 @@ struct isc_subdev_entity {
* struct isc_format - ISC media bus format information
* @fourcc: Fourcc code for this format
* @mbus_code: V4L2 media bus format code.
* @bpp: Bytes per pixel (when stored in memory)
* @bpp: Bits per pixel (when stored in memory)
* @reg_bps: reg value for bits per sample
* (when transferred over a bus)
* @support: Indicates format supported by subdev
* @pipeline: pipeline switch
* @sd_support: Subdev supports this format
* @isc_support: ISC can convert raw format to this format
*/
struct isc_format {
u32 fourcc;
@ -100,11 +105,42 @@ struct isc_format {
u8 bpp;
u32 reg_bps;
u32 reg_bay_cfg;
u32 reg_rlp_mode;
u32 reg_dcfg_imode;
u32 reg_dctrl_dview;
bool support;
u32 pipeline;
bool sd_support;
bool isc_support;
};
#define HIST_ENTRIES 512
#define HIST_BAYER (ISC_HIS_CFG_MODE_B + 1)
enum{
HIST_INIT = 0,
HIST_ENABLED,
HIST_DISABLED,
};
struct isc_ctrls {
struct v4l2_ctrl_handler handler;
u32 brightness;
u32 contrast;
u8 gamma_index;
u8 awb;
u32 r_gain;
u32 b_gain;
u32 hist_entry[HIST_ENTRIES];
u32 hist_count[HIST_BAYER];
u8 hist_id;
u8 hist_stat;
};
#define ISC_PIPE_LINE_NODE_NUM 11
@ -131,6 +167,10 @@ struct isc_device {
struct isc_format **user_formats;
unsigned int num_user_formats;
const struct isc_format *current_fmt;
const struct isc_format *raw_fmt;
struct isc_ctrls ctrls;
struct work_struct awb_work;
struct mutex lock;
@ -140,51 +180,134 @@ struct isc_device {
struct list_head subdev_entities;
};
#define RAW_FMT_IND_START 0
#define RAW_FMT_IND_END 11
#define ISC_FMT_IND_START 12
#define ISC_FMT_IND_END 14
static struct isc_format isc_formats[] = {
{ V4L2_PIX_FMT_SBGGR8, MEDIA_BUS_FMT_SBGGR8_1X8,
1, ISC_PFE_CFG0_BPS_EIGHT, ISC_RLP_CFG_MODE_DAT8,
ISC_DCFG_IMODE_PACKED8, ISC_DCTRL_DVIEW_PACKED, false },
{ V4L2_PIX_FMT_SGBRG8, MEDIA_BUS_FMT_SGBRG8_1X8,
1, ISC_PFE_CFG0_BPS_EIGHT, ISC_RLP_CFG_MODE_DAT8,
ISC_DCFG_IMODE_PACKED8, ISC_DCTRL_DVIEW_PACKED, false },
{ V4L2_PIX_FMT_SGRBG8, MEDIA_BUS_FMT_SGRBG8_1X8,
1, ISC_PFE_CFG0_BPS_EIGHT, ISC_RLP_CFG_MODE_DAT8,
ISC_DCFG_IMODE_PACKED8, ISC_DCTRL_DVIEW_PACKED, false },
{ V4L2_PIX_FMT_SRGGB8, MEDIA_BUS_FMT_SRGGB8_1X8,
1, ISC_PFE_CFG0_BPS_EIGHT, ISC_RLP_CFG_MODE_DAT8,
ISC_DCFG_IMODE_PACKED8, ISC_DCTRL_DVIEW_PACKED, false },
{ V4L2_PIX_FMT_SBGGR8, MEDIA_BUS_FMT_SBGGR8_1X8, 8,
ISC_PFE_CFG0_BPS_EIGHT, ISC_BAY_CFG_BGBG, ISC_RLP_CFG_MODE_DAT8,
ISC_DCFG_IMODE_PACKED8, ISC_DCTRL_DVIEW_PACKED, 0x0,
false, false },
{ V4L2_PIX_FMT_SGBRG8, MEDIA_BUS_FMT_SGBRG8_1X8, 8,
ISC_PFE_CFG0_BPS_EIGHT, ISC_BAY_CFG_GBGB, ISC_RLP_CFG_MODE_DAT8,
ISC_DCFG_IMODE_PACKED8, ISC_DCTRL_DVIEW_PACKED, 0x0,
false, false },
{ V4L2_PIX_FMT_SGRBG8, MEDIA_BUS_FMT_SGRBG8_1X8, 8,
ISC_PFE_CFG0_BPS_EIGHT, ISC_BAY_CFG_GRGR, ISC_RLP_CFG_MODE_DAT8,
ISC_DCFG_IMODE_PACKED8, ISC_DCTRL_DVIEW_PACKED, 0x0,
false, false },
{ V4L2_PIX_FMT_SRGGB8, MEDIA_BUS_FMT_SRGGB8_1X8, 8,
ISC_PFE_CFG0_BPS_EIGHT, ISC_BAY_CFG_RGRG, ISC_RLP_CFG_MODE_DAT8,
ISC_DCFG_IMODE_PACKED8, ISC_DCTRL_DVIEW_PACKED, 0x0,
false, false },
{ V4L2_PIX_FMT_SBGGR10, MEDIA_BUS_FMT_SBGGR10_1X10,
2, ISC_PFG_CFG0_BPS_TEN, ISC_RLP_CFG_MODE_DAT10,
ISC_DCFG_IMODE_PACKED16, ISC_DCTRL_DVIEW_PACKED, false },
{ V4L2_PIX_FMT_SGBRG10, MEDIA_BUS_FMT_SGBRG10_1X10,
2, ISC_PFG_CFG0_BPS_TEN, ISC_RLP_CFG_MODE_DAT10,
ISC_DCFG_IMODE_PACKED16, ISC_DCTRL_DVIEW_PACKED, false },
{ V4L2_PIX_FMT_SGRBG10, MEDIA_BUS_FMT_SGRBG10_1X10,
2, ISC_PFG_CFG0_BPS_TEN, ISC_RLP_CFG_MODE_DAT10,
ISC_DCFG_IMODE_PACKED16, ISC_DCTRL_DVIEW_PACKED, false },
{ V4L2_PIX_FMT_SRGGB10, MEDIA_BUS_FMT_SRGGB10_1X10,
2, ISC_PFG_CFG0_BPS_TEN, ISC_RLP_CFG_MODE_DAT10,
ISC_DCFG_IMODE_PACKED16, ISC_DCTRL_DVIEW_PACKED, false },
{ V4L2_PIX_FMT_SBGGR10, MEDIA_BUS_FMT_SBGGR10_1X10, 16,
ISC_PFG_CFG0_BPS_TEN, ISC_BAY_CFG_BGBG, ISC_RLP_CFG_MODE_DAT10,
ISC_DCFG_IMODE_PACKED16, ISC_DCTRL_DVIEW_PACKED, 0x0,
false, false },
{ V4L2_PIX_FMT_SGBRG10, MEDIA_BUS_FMT_SGBRG10_1X10, 16,
ISC_PFG_CFG0_BPS_TEN, ISC_BAY_CFG_GBGB, ISC_RLP_CFG_MODE_DAT10,
ISC_DCFG_IMODE_PACKED16, ISC_DCTRL_DVIEW_PACKED, 0x0,
false, false },
{ V4L2_PIX_FMT_SGRBG10, MEDIA_BUS_FMT_SGRBG10_1X10, 16,
ISC_PFG_CFG0_BPS_TEN, ISC_BAY_CFG_GRGR, ISC_RLP_CFG_MODE_DAT10,
ISC_DCFG_IMODE_PACKED16, ISC_DCTRL_DVIEW_PACKED, 0x0,
false, false },
{ V4L2_PIX_FMT_SRGGB10, MEDIA_BUS_FMT_SRGGB10_1X10, 16,
ISC_PFG_CFG0_BPS_TEN, ISC_BAY_CFG_RGRG, ISC_RLP_CFG_MODE_DAT10,
ISC_DCFG_IMODE_PACKED16, ISC_DCTRL_DVIEW_PACKED, 0x0,
false, false },
{ V4L2_PIX_FMT_SBGGR12, MEDIA_BUS_FMT_SBGGR12_1X12,
2, ISC_PFG_CFG0_BPS_TWELVE, ISC_RLP_CFG_MODE_DAT12,
ISC_DCFG_IMODE_PACKED16, ISC_DCTRL_DVIEW_PACKED, false },
{ V4L2_PIX_FMT_SGBRG12, MEDIA_BUS_FMT_SGBRG12_1X12,
2, ISC_PFG_CFG0_BPS_TWELVE, ISC_RLP_CFG_MODE_DAT12,
ISC_DCFG_IMODE_PACKED16, ISC_DCTRL_DVIEW_PACKED, false },
{ V4L2_PIX_FMT_SGRBG12, MEDIA_BUS_FMT_SGRBG12_1X12,
2, ISC_PFG_CFG0_BPS_TWELVE, ISC_RLP_CFG_MODE_DAT12,
ISC_DCFG_IMODE_PACKED16, ISC_DCTRL_DVIEW_PACKED, false },
{ V4L2_PIX_FMT_SRGGB12, MEDIA_BUS_FMT_SRGGB12_1X12,
2, ISC_PFG_CFG0_BPS_TWELVE, ISC_RLP_CFG_MODE_DAT12,
ISC_DCFG_IMODE_PACKED16, ISC_DCTRL_DVIEW_PACKED, false },
{ V4L2_PIX_FMT_SBGGR12, MEDIA_BUS_FMT_SBGGR12_1X12, 16,
ISC_PFG_CFG0_BPS_TWELVE, ISC_BAY_CFG_BGBG, ISC_RLP_CFG_MODE_DAT12,
ISC_DCFG_IMODE_PACKED16, ISC_DCTRL_DVIEW_PACKED, 0x0,
false, false },
{ V4L2_PIX_FMT_SGBRG12, MEDIA_BUS_FMT_SGBRG12_1X12, 16,
ISC_PFG_CFG0_BPS_TWELVE, ISC_BAY_CFG_GBGB, ISC_RLP_CFG_MODE_DAT12,
ISC_DCFG_IMODE_PACKED16, ISC_DCTRL_DVIEW_PACKED, 0x0,
false, false },
{ V4L2_PIX_FMT_SGRBG12, MEDIA_BUS_FMT_SGRBG12_1X12, 16,
ISC_PFG_CFG0_BPS_TWELVE, ISC_BAY_CFG_GRGR, ISC_RLP_CFG_MODE_DAT12,
ISC_DCFG_IMODE_PACKED16, ISC_DCTRL_DVIEW_PACKED, 0x0,
false, false },
{ V4L2_PIX_FMT_SRGGB12, MEDIA_BUS_FMT_SRGGB12_1X12, 16,
ISC_PFG_CFG0_BPS_TWELVE, ISC_BAY_CFG_RGRG, ISC_RLP_CFG_MODE_DAT12,
ISC_DCFG_IMODE_PACKED16, ISC_DCTRL_DVIEW_PACKED, 0x0,
false, false },
{ V4L2_PIX_FMT_YUYV, MEDIA_BUS_FMT_YUYV8_2X8,
2, ISC_PFE_CFG0_BPS_EIGHT, ISC_RLP_CFG_MODE_DAT8,
ISC_DCFG_IMODE_PACKED8, ISC_DCTRL_DVIEW_PACKED, false },
{ V4L2_PIX_FMT_YUV420, 0x0, 12,
ISC_PFE_CFG0_BPS_EIGHT, ISC_BAY_CFG_BGBG, ISC_RLP_CFG_MODE_YYCC,
ISC_DCFG_IMODE_YC420P | ISC_DCFG_YMBSIZE_BEATS8 |
ISC_DCFG_CMBSIZE_BEATS8, ISC_DCTRL_DVIEW_PLANAR, 0x7fb,
false, false },
{ V4L2_PIX_FMT_YUV422P, 0x0, 16,
ISC_PFE_CFG0_BPS_EIGHT, ISC_BAY_CFG_BGBG, ISC_RLP_CFG_MODE_YYCC,
ISC_DCFG_IMODE_YC422P | ISC_DCFG_YMBSIZE_BEATS8 |
ISC_DCFG_CMBSIZE_BEATS8, ISC_DCTRL_DVIEW_PLANAR, 0x3fb,
false, false },
{ V4L2_PIX_FMT_RGB565, MEDIA_BUS_FMT_RGB565_2X8_LE, 16,
ISC_PFE_CFG0_BPS_EIGHT, ISC_BAY_CFG_BGBG, ISC_RLP_CFG_MODE_RGB565,
ISC_DCFG_IMODE_PACKED16, ISC_DCTRL_DVIEW_PACKED, 0x7b,
false, false },
{ V4L2_PIX_FMT_YUYV, MEDIA_BUS_FMT_YUYV8_2X8, 16,
ISC_PFE_CFG0_BPS_EIGHT, ISC_BAY_CFG_BGBG, ISC_RLP_CFG_MODE_DAT8,
ISC_DCFG_IMODE_PACKED8, ISC_DCTRL_DVIEW_PACKED, 0x0,
false, false },
};
#define GAMMA_MAX 2
#define GAMMA_ENTRIES 64
/* Gamma table with gamma 1/2.2 */
static const u32 isc_gamma_table[GAMMA_MAX + 1][GAMMA_ENTRIES] = {
/* 0 --> gamma 1/1.8 */
{ 0x65, 0x66002F, 0x950025, 0xBB0020, 0xDB001D, 0xF8001A,
0x1130018, 0x12B0017, 0x1420016, 0x1580014, 0x16D0013, 0x1810012,
0x1940012, 0x1A60012, 0x1B80011, 0x1C90010, 0x1DA0010, 0x1EA000F,
0x1FA000F, 0x209000F, 0x218000F, 0x227000E, 0x235000E, 0x243000E,
0x251000E, 0x25F000D, 0x26C000D, 0x279000D, 0x286000D, 0x293000C,
0x2A0000C, 0x2AC000C, 0x2B8000C, 0x2C4000C, 0x2D0000B, 0x2DC000B,
0x2E7000B, 0x2F3000B, 0x2FE000B, 0x309000B, 0x314000B, 0x31F000A,
0x32A000A, 0x334000B, 0x33F000A, 0x349000A, 0x354000A, 0x35E000A,
0x368000A, 0x372000A, 0x37C000A, 0x386000A, 0x3900009, 0x399000A,
0x3A30009, 0x3AD0009, 0x3B60009, 0x3BF000A, 0x3C90009, 0x3D20009,
0x3DB0009, 0x3E40009, 0x3ED0009, 0x3F60009 },
/* 1 --> gamma 1/2 */
{ 0x7F, 0x800034, 0xB50028, 0xDE0021, 0x100001E, 0x11E001B,
0x1390019, 0x1520017, 0x16A0015, 0x1800014, 0x1940014, 0x1A80013,
0x1BB0012, 0x1CD0011, 0x1DF0010, 0x1EF0010, 0x200000F, 0x20F000F,
0x21F000E, 0x22D000F, 0x23C000E, 0x24A000E, 0x258000D, 0x265000D,
0x273000C, 0x27F000D, 0x28C000C, 0x299000C, 0x2A5000C, 0x2B1000B,
0x2BC000C, 0x2C8000B, 0x2D3000C, 0x2DF000B, 0x2EA000A, 0x2F5000A,
0x2FF000B, 0x30A000A, 0x314000B, 0x31F000A, 0x329000A, 0x333000A,
0x33D0009, 0x3470009, 0x350000A, 0x35A0009, 0x363000A, 0x36D0009,
0x3760009, 0x37F0009, 0x3880009, 0x3910009, 0x39A0009, 0x3A30009,
0x3AC0008, 0x3B40009, 0x3BD0008, 0x3C60008, 0x3CE0008, 0x3D60009,
0x3DF0008, 0x3E70008, 0x3EF0008, 0x3F70008 },
/* 2 --> gamma 1/2.2 */
{ 0x99, 0x9B0038, 0xD4002A, 0xFF0023, 0x122001F, 0x141001B,
0x15D0019, 0x1760017, 0x18E0015, 0x1A30015, 0x1B80013, 0x1CC0012,
0x1DE0011, 0x1F00010, 0x2010010, 0x2110010, 0x221000F, 0x230000F,
0x23F000E, 0x24D000E, 0x25B000D, 0x269000C, 0x276000C, 0x283000C,
0x28F000C, 0x29B000C, 0x2A7000C, 0x2B3000B, 0x2BF000B, 0x2CA000B,
0x2D5000B, 0x2E0000A, 0x2EB000A, 0x2F5000A, 0x2FF000A, 0x30A000A,
0x3140009, 0x31E0009, 0x327000A, 0x3310009, 0x33A0009, 0x3440009,
0x34D0009, 0x3560009, 0x35F0009, 0x3680008, 0x3710008, 0x3790009,
0x3820008, 0x38A0008, 0x3930008, 0x39B0008, 0x3A30008, 0x3AB0008,
0x3B30008, 0x3BB0008, 0x3C30008, 0x3CB0007, 0x3D20008, 0x3DA0007,
0x3E20007, 0x3E90007, 0x3F00008, 0x3F80007 },
};
static unsigned int sensor_preferred = 1;
module_param(sensor_preferred, uint, 0644);
MODULE_PARM_DESC(sensor_preferred,
"Sensor is preferred to output the specified format (1-on 0-off), default 1");
static int isc_clk_enable(struct clk_hw *hw)
{
struct isc_clk *isc_clk = to_isc_clk(hw);
@ -447,27 +570,155 @@ static int isc_buffer_prepare(struct vb2_buffer *vb)
return 0;
}
static inline void isc_start_dma(struct regmap *regmap,
struct isc_buffer *frm, u32 dview)
static inline bool sensor_is_preferred(const struct isc_format *isc_fmt)
{
dma_addr_t addr;
return (sensor_preferred && isc_fmt->sd_support) ||
!isc_fmt->isc_support;
}
addr = vb2_dma_contig_plane_dma_addr(&frm->vb.vb2_buf, 0);
static void isc_start_dma(struct isc_device *isc)
{
struct regmap *regmap = isc->regmap;
struct v4l2_pix_format *pixfmt = &isc->fmt.fmt.pix;
u32 sizeimage = pixfmt->sizeimage;
u32 dctrl_dview;
dma_addr_t addr0;
regmap_write(regmap, ISC_DCTRL, dview | ISC_DCTRL_IE_IS);
regmap_write(regmap, ISC_DAD0, addr);
addr0 = vb2_dma_contig_plane_dma_addr(&isc->cur_frm->vb.vb2_buf, 0);
regmap_write(regmap, ISC_DAD0, addr0);
switch (pixfmt->pixelformat) {
case V4L2_PIX_FMT_YUV420:
regmap_write(regmap, ISC_DAD1, addr0 + (sizeimage * 2) / 3);
regmap_write(regmap, ISC_DAD2, addr0 + (sizeimage * 5) / 6);
break;
case V4L2_PIX_FMT_YUV422P:
regmap_write(regmap, ISC_DAD1, addr0 + sizeimage / 2);
regmap_write(regmap, ISC_DAD2, addr0 + (sizeimage * 3) / 4);
break;
default:
break;
}
if (sensor_is_preferred(isc->current_fmt))
dctrl_dview = ISC_DCTRL_DVIEW_PACKED;
else
dctrl_dview = isc->current_fmt->reg_dctrl_dview;
regmap_write(regmap, ISC_DCTRL, dctrl_dview | ISC_DCTRL_IE_IS);
regmap_write(regmap, ISC_CTRLEN, ISC_CTRL_CAPTURE);
}
static void isc_set_pipeline(struct isc_device *isc, u32 pipeline)
{
u32 val;
struct regmap *regmap = isc->regmap;
struct isc_ctrls *ctrls = &isc->ctrls;
u32 val, bay_cfg;
const u32 *gamma;
unsigned int i;
/* WB-->CFA-->CC-->GAM-->CSC-->CBC-->SUB422-->SUB420 */
for (i = 0; i < ISC_PIPE_LINE_NODE_NUM; i++) {
val = pipeline & BIT(i) ? 1 : 0;
regmap_field_write(isc->pipeline[i], val);
}
if (!pipeline)
return;
bay_cfg = isc->raw_fmt->reg_bay_cfg;
regmap_write(regmap, ISC_WB_CFG, bay_cfg);
regmap_write(regmap, ISC_WB_O_RGR, 0x0);
regmap_write(regmap, ISC_WB_O_BGR, 0x0);
regmap_write(regmap, ISC_WB_G_RGR, ctrls->r_gain | (0x1 << 25));
regmap_write(regmap, ISC_WB_G_BGR, ctrls->b_gain | (0x1 << 25));
regmap_write(regmap, ISC_CFA_CFG, bay_cfg | ISC_CFA_CFG_EITPOL);
gamma = &isc_gamma_table[ctrls->gamma_index][0];
regmap_bulk_write(regmap, ISC_GAM_BENTRY, gamma, GAMMA_ENTRIES);
regmap_bulk_write(regmap, ISC_GAM_GENTRY, gamma, GAMMA_ENTRIES);
regmap_bulk_write(regmap, ISC_GAM_RENTRY, gamma, GAMMA_ENTRIES);
/* Convert RGB to YUV */
regmap_write(regmap, ISC_CSC_YR_YG, 0x42 | (0x81 << 16));
regmap_write(regmap, ISC_CSC_YB_OY, 0x19 | (0x10 << 16));
regmap_write(regmap, ISC_CSC_CBR_CBG, 0xFDA | (0xFB6 << 16));
regmap_write(regmap, ISC_CSC_CBB_OCB, 0x70 | (0x80 << 16));
regmap_write(regmap, ISC_CSC_CRR_CRG, 0x70 | (0xFA2 << 16));
regmap_write(regmap, ISC_CSC_CRB_OCR, 0xFEE | (0x80 << 16));
regmap_write(regmap, ISC_CBC_BRIGHT, ctrls->brightness);
regmap_write(regmap, ISC_CBC_CONTRAST, ctrls->contrast);
}
static int isc_update_profile(struct isc_device *isc)
{
struct regmap *regmap = isc->regmap;
u32 sr;
int counter = 100;
regmap_write(regmap, ISC_CTRLEN, ISC_CTRL_UPPRO);
regmap_read(regmap, ISC_CTRLSR, &sr);
while ((sr & ISC_CTRL_UPPRO) && counter--) {
usleep_range(1000, 2000);
regmap_read(regmap, ISC_CTRLSR, &sr);
}
if (counter < 0) {
v4l2_warn(&isc->v4l2_dev, "Time out to update profie\n");
return -ETIMEDOUT;
}
return 0;
}
static void isc_set_histogram(struct isc_device *isc)
{
struct regmap *regmap = isc->regmap;
struct isc_ctrls *ctrls = &isc->ctrls;
if (ctrls->awb && (ctrls->hist_stat != HIST_ENABLED)) {
regmap_write(regmap, ISC_HIS_CFG, ISC_HIS_CFG_MODE_R |
(isc->raw_fmt->reg_bay_cfg << ISC_HIS_CFG_BAYSEL_SHIFT) |
ISC_HIS_CFG_RAR);
regmap_write(regmap, ISC_HIS_CTRL, ISC_HIS_CTRL_EN);
regmap_write(regmap, ISC_INTEN, ISC_INT_HISDONE);
ctrls->hist_id = ISC_HIS_CFG_MODE_R;
isc_update_profile(isc);
regmap_write(regmap, ISC_CTRLEN, ISC_CTRL_HISREQ);
ctrls->hist_stat = HIST_ENABLED;
} else if (!ctrls->awb && (ctrls->hist_stat != HIST_DISABLED)) {
regmap_write(regmap, ISC_INTDIS, ISC_INT_HISDONE);
regmap_write(regmap, ISC_HIS_CTRL, ISC_HIS_CTRL_DIS);
ctrls->hist_stat = HIST_DISABLED;
}
}
static inline void isc_get_param(const struct isc_format *fmt,
u32 *rlp_mode, u32 *dcfg_imode)
{
switch (fmt->fourcc) {
case V4L2_PIX_FMT_SBGGR10:
case V4L2_PIX_FMT_SGBRG10:
case V4L2_PIX_FMT_SGRBG10:
case V4L2_PIX_FMT_SRGGB10:
case V4L2_PIX_FMT_SBGGR12:
case V4L2_PIX_FMT_SGBRG12:
case V4L2_PIX_FMT_SGRBG12:
case V4L2_PIX_FMT_SRGGB12:
*rlp_mode = fmt->reg_rlp_mode;
*dcfg_imode = fmt->reg_dcfg_imode;
break;
default:
*rlp_mode = ISC_RLP_CFG_MODE_DAT8;
*dcfg_imode = ISC_DCFG_IMODE_PACKED8;
break;
}
}
static int isc_configure(struct isc_device *isc)
@ -475,39 +726,40 @@ static int isc_configure(struct isc_device *isc)
struct regmap *regmap = isc->regmap;
const struct isc_format *current_fmt = isc->current_fmt;
struct isc_subdev_entity *subdev = isc->current_subdev;
u32 val, mask;
int counter = 10;
u32 pfe_cfg0, rlp_mode, dcfg_imode, mask, pipeline;
val = current_fmt->reg_bps | subdev->pfe_cfg0 |
ISC_PFE_CFG0_MODE_PROGRESSIVE;
if (sensor_is_preferred(current_fmt)) {
pfe_cfg0 = current_fmt->reg_bps;
pipeline = 0x0;
isc_get_param(current_fmt, &rlp_mode, &dcfg_imode);
isc->ctrls.hist_stat = HIST_INIT;
} else {
pfe_cfg0 = isc->raw_fmt->reg_bps;
pipeline = current_fmt->pipeline;
rlp_mode = current_fmt->reg_rlp_mode;
dcfg_imode = current_fmt->reg_dcfg_imode;
}
pfe_cfg0 |= subdev->pfe_cfg0 | ISC_PFE_CFG0_MODE_PROGRESSIVE;
mask = ISC_PFE_CFG0_BPS_MASK | ISC_PFE_CFG0_HPOL_LOW |
ISC_PFE_CFG0_VPOL_LOW | ISC_PFE_CFG0_PPOL_LOW |
ISC_PFE_CFG0_MODE_MASK;
regmap_update_bits(regmap, ISC_PFE_CFG0, mask, val);
regmap_update_bits(regmap, ISC_PFE_CFG0, mask, pfe_cfg0);
regmap_update_bits(regmap, ISC_RLP_CFG, ISC_RLP_CFG_MODE_MASK,
current_fmt->reg_rlp_mode);
rlp_mode);
regmap_update_bits(regmap, ISC_DCFG, ISC_DCFG_IMODE_MASK,
current_fmt->reg_dcfg_imode);
regmap_update_bits(regmap, ISC_DCFG, ISC_DCFG_IMODE_MASK, dcfg_imode);
/* Disable the pipeline */
isc_set_pipeline(isc, 0x0);
/* Set the pipeline */
isc_set_pipeline(isc, pipeline);
if (pipeline)
isc_set_histogram(isc);
/* Update profile */
regmap_write(regmap, ISC_CTRLEN, ISC_CTRL_UPPRO);
regmap_read(regmap, ISC_CTRLSR, &val);
while ((val & ISC_CTRL_UPPRO) && counter--) {
usleep_range(1000, 2000);
regmap_read(regmap, ISC_CTRLSR, &val);
}
if (counter < 0)
return -ETIMEDOUT;
return 0;
return isc_update_profile(isc);
}
static int isc_start_streaming(struct vb2_queue *vq, unsigned int count)
@ -517,7 +769,6 @@ static int isc_start_streaming(struct vb2_queue *vq, unsigned int count)
struct isc_buffer *buf;
unsigned long flags;
int ret;
u32 val;
/* Enable stream on the sub device */
ret = v4l2_subdev_call(isc->current_subdev->sd, video, s_stream, 1);
@ -528,12 +779,6 @@ static int isc_start_streaming(struct vb2_queue *vq, unsigned int count)
pm_runtime_get_sync(isc->dev);
/* Disable all the interrupts */
regmap_write(isc->regmap, ISC_INTDIS, (u32)~0UL);
/* Clean the interrupt status register */
regmap_read(regmap, ISC_INTSR, &val);
ret = isc_configure(isc);
if (unlikely(ret))
goto err_configure;
@ -551,7 +796,7 @@ static int isc_start_streaming(struct vb2_queue *vq, unsigned int count)
struct isc_buffer, list);
list_del(&isc->cur_frm->list);
isc_start_dma(regmap, isc->cur_frm, isc->current_fmt->reg_dctrl_dview);
isc_start_dma(isc);
spin_unlock_irqrestore(&isc->dma_queue_lock, flags);
@ -620,8 +865,7 @@ static void isc_buffer_queue(struct vb2_buffer *vb)
if (!isc->cur_frm && list_empty(&isc->dma_queue) &&
vb2_is_streaming(vb->vb2_queue)) {
isc->cur_frm = buf;
isc_start_dma(isc->regmap, isc->cur_frm,
isc->current_fmt->reg_dctrl_dview);
isc_start_dma(isc);
} else
list_add_tail(&buf->list, &isc->dma_queue);
spin_unlock_irqrestore(&isc->dma_queue_lock, flags);
@ -691,13 +935,14 @@ static struct isc_format *find_format_by_fourcc(struct isc_device *isc,
}
static int isc_try_fmt(struct isc_device *isc, struct v4l2_format *f,
struct isc_format **current_fmt)
struct isc_format **current_fmt, u32 *code)
{
struct isc_format *isc_fmt;
struct v4l2_pix_format *pixfmt = &f->fmt.pix;
struct v4l2_subdev_format format = {
.which = V4L2_SUBDEV_FORMAT_TRY,
};
u32 mbus_code;
int ret;
if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
@ -717,7 +962,12 @@ static int isc_try_fmt(struct isc_device *isc, struct v4l2_format *f,
if (pixfmt->height > ISC_MAX_SUPPORT_HEIGHT)
pixfmt->height = ISC_MAX_SUPPORT_HEIGHT;
v4l2_fill_mbus_format(&format.format, pixfmt, isc_fmt->mbus_code);
if (sensor_is_preferred(isc_fmt))
mbus_code = isc_fmt->mbus_code;
else
mbus_code = isc->raw_fmt->mbus_code;
v4l2_fill_mbus_format(&format.format, pixfmt, mbus_code);
ret = v4l2_subdev_call(isc->current_subdev->sd, pad, set_fmt,
isc->current_subdev->config, &format);
if (ret < 0)
@ -726,12 +976,15 @@ static int isc_try_fmt(struct isc_device *isc, struct v4l2_format *f,
v4l2_fill_pix_format(pixfmt, &format.format);
pixfmt->field = V4L2_FIELD_NONE;
pixfmt->bytesperline = pixfmt->width * isc_fmt->bpp;
pixfmt->bytesperline = (pixfmt->width * isc_fmt->bpp) >> 3;
pixfmt->sizeimage = pixfmt->bytesperline * pixfmt->height;
if (current_fmt)
*current_fmt = isc_fmt;
if (code)
*code = mbus_code;
return 0;
}
@ -741,14 +994,14 @@ static int isc_set_fmt(struct isc_device *isc, struct v4l2_format *f)
.which = V4L2_SUBDEV_FORMAT_ACTIVE,
};
struct isc_format *current_fmt;
u32 mbus_code;
int ret;
ret = isc_try_fmt(isc, f, &current_fmt);
ret = isc_try_fmt(isc, f, &current_fmt, &mbus_code);
if (ret)
return ret;
v4l2_fill_mbus_format(&format.format, &f->fmt.pix,
current_fmt->mbus_code);
v4l2_fill_mbus_format(&format.format, &f->fmt.pix, mbus_code);
ret = v4l2_subdev_call(isc->current_subdev->sd, pad,
set_fmt, NULL, &format);
if (ret < 0)
@ -776,7 +1029,7 @@ static int isc_try_fmt_vid_cap(struct file *file, void *priv,
{
struct isc_device *isc = video_drvdata(file);
return isc_try_fmt(isc, f, NULL);
return isc_try_fmt(isc, f, NULL, NULL);
}
static int isc_enum_input(struct file *file, void *priv,
@ -842,7 +1095,10 @@ static int isc_enum_framesizes(struct file *file, void *fh,
if (!isc_fmt)
return -EINVAL;
fse.code = isc_fmt->mbus_code;
if (sensor_is_preferred(isc_fmt))
fse.code = isc_fmt->mbus_code;
else
fse.code = isc->raw_fmt->mbus_code;
ret = v4l2_subdev_call(isc->current_subdev->sd, pad, enum_frame_size,
NULL, &fse);
@ -873,7 +1129,10 @@ static int isc_enum_frameintervals(struct file *file, void *fh,
if (!isc_fmt)
return -EINVAL;
fie.code = isc_fmt->mbus_code;
if (sensor_is_preferred(isc_fmt))
fie.code = isc_fmt->mbus_code;
else
fie.code = isc->raw_fmt->mbus_code;
ret = v4l2_subdev_call(isc->current_subdev->sd, pad,
enum_frame_interval, NULL, &fie);
@ -911,6 +1170,10 @@ static const struct v4l2_ioctl_ops isc_ioctl_ops = {
.vidioc_s_parm = isc_s_parm,
.vidioc_enum_framesizes = isc_enum_framesizes,
.vidioc_enum_frameintervals = isc_enum_frameintervals,
.vidioc_log_status = v4l2_ctrl_log_status,
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
};
static int isc_open(struct file *file)
@ -984,14 +1247,13 @@ static irqreturn_t isc_interrupt(int irq, void *dev_id)
u32 isc_intsr, isc_intmask, pending;
irqreturn_t ret = IRQ_NONE;
spin_lock(&isc->dma_queue_lock);
regmap_read(regmap, ISC_INTSR, &isc_intsr);
regmap_read(regmap, ISC_INTMASK, &isc_intmask);
pending = isc_intsr & isc_intmask;
if (likely(pending & ISC_INT_DDONE)) {
spin_lock(&isc->dma_queue_lock);
if (isc->cur_frm) {
struct vb2_v4l2_buffer *vbuf = &isc->cur_frm->vb;
struct vb2_buffer *vb = &vbuf->vb2_buf;
@ -1007,21 +1269,144 @@ static irqreturn_t isc_interrupt(int irq, void *dev_id)
struct isc_buffer, list);
list_del(&isc->cur_frm->list);
isc_start_dma(regmap, isc->cur_frm,
isc->current_fmt->reg_dctrl_dview);
isc_start_dma(isc);
}
if (isc->stop)
complete(&isc->comp);
ret = IRQ_HANDLED;
spin_unlock(&isc->dma_queue_lock);
}
spin_unlock(&isc->dma_queue_lock);
if (pending & ISC_INT_HISDONE) {
schedule_work(&isc->awb_work);
ret = IRQ_HANDLED;
}
return ret;
}
static void isc_hist_count(struct isc_device *isc)
{
struct regmap *regmap = isc->regmap;
struct isc_ctrls *ctrls = &isc->ctrls;
u32 *hist_count = &ctrls->hist_count[ctrls->hist_id];
u32 *hist_entry = &ctrls->hist_entry[0];
u32 i;
regmap_bulk_read(regmap, ISC_HIS_ENTRY, hist_entry, HIST_ENTRIES);
*hist_count = 0;
for (i = 0; i <= HIST_ENTRIES; i++)
*hist_count += i * (*hist_entry++);
}
static void isc_wb_update(struct isc_ctrls *ctrls)
{
u32 *hist_count = &ctrls->hist_count[0];
u64 g_count = (u64)hist_count[ISC_HIS_CFG_MODE_GB] << 9;
u32 hist_r = hist_count[ISC_HIS_CFG_MODE_R];
u32 hist_b = hist_count[ISC_HIS_CFG_MODE_B];
if (hist_r)
ctrls->r_gain = div_u64(g_count, hist_r);
if (hist_b)
ctrls->b_gain = div_u64(g_count, hist_b);
}
static void isc_awb_work(struct work_struct *w)
{
struct isc_device *isc =
container_of(w, struct isc_device, awb_work);
struct regmap *regmap = isc->regmap;
struct isc_ctrls *ctrls = &isc->ctrls;
u32 hist_id = ctrls->hist_id;
u32 baysel;
if (ctrls->hist_stat != HIST_ENABLED)
return;
isc_hist_count(isc);
if (hist_id != ISC_HIS_CFG_MODE_B) {
hist_id++;
} else {
isc_wb_update(ctrls);
hist_id = ISC_HIS_CFG_MODE_R;
}
ctrls->hist_id = hist_id;
baysel = isc->raw_fmt->reg_bay_cfg << ISC_HIS_CFG_BAYSEL_SHIFT;
pm_runtime_get_sync(isc->dev);
regmap_write(regmap, ISC_HIS_CFG, hist_id | baysel | ISC_HIS_CFG_RAR);
isc_update_profile(isc);
regmap_write(regmap, ISC_CTRLEN, ISC_CTRL_HISREQ);
pm_runtime_put_sync(isc->dev);
}
static int isc_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct isc_device *isc = container_of(ctrl->handler,
struct isc_device, ctrls.handler);
struct isc_ctrls *ctrls = &isc->ctrls;
switch (ctrl->id) {
case V4L2_CID_BRIGHTNESS:
ctrls->brightness = ctrl->val & ISC_CBC_BRIGHT_MASK;
break;
case V4L2_CID_CONTRAST:
ctrls->contrast = ctrl->val & ISC_CBC_CONTRAST_MASK;
break;
case V4L2_CID_GAMMA:
ctrls->gamma_index = ctrl->val;
break;
case V4L2_CID_AUTO_WHITE_BALANCE:
ctrls->awb = ctrl->val;
if (ctrls->hist_stat != HIST_ENABLED) {
ctrls->r_gain = 0x1 << 9;
ctrls->b_gain = 0x1 << 9;
}
break;
default:
return -EINVAL;
}
return 0;
}
static const struct v4l2_ctrl_ops isc_ctrl_ops = {
.s_ctrl = isc_s_ctrl,
};
static int isc_ctrl_init(struct isc_device *isc)
{
const struct v4l2_ctrl_ops *ops = &isc_ctrl_ops;
struct isc_ctrls *ctrls = &isc->ctrls;
struct v4l2_ctrl_handler *hdl = &ctrls->handler;
int ret;
ctrls->hist_stat = HIST_INIT;
ret = v4l2_ctrl_handler_init(hdl, 4);
if (ret < 0)
return ret;
v4l2_ctrl_new_std(hdl, ops, V4L2_CID_BRIGHTNESS, -1024, 1023, 1, 0);
v4l2_ctrl_new_std(hdl, ops, V4L2_CID_CONTRAST, -2048, 2047, 1, 256);
v4l2_ctrl_new_std(hdl, ops, V4L2_CID_GAMMA, 0, GAMMA_MAX, 1, 2);
v4l2_ctrl_new_std(hdl, ops, V4L2_CID_AUTO_WHITE_BALANCE, 0, 1, 1, 1);
v4l2_ctrl_handler_setup(hdl);
return 0;
}
static int isc_async_bound(struct v4l2_async_notifier *notifier,
struct v4l2_subdev *subdev,
struct v4l2_async_subdev *asd)
@ -1047,10 +1432,11 @@ static void isc_async_unbind(struct v4l2_async_notifier *notifier,
{
struct isc_device *isc = container_of(notifier->v4l2_dev,
struct isc_device, v4l2_dev);
cancel_work_sync(&isc->awb_work);
video_unregister_device(&isc->video_dev);
if (isc->current_subdev->config)
v4l2_subdev_free_pad_config(isc->current_subdev->config);
v4l2_ctrl_handler_free(&isc->ctrls.handler);
}
static struct isc_format *find_format_by_code(unsigned int code, int *index)
@ -1074,14 +1460,16 @@ static int isc_formats_init(struct isc_device *isc)
{
struct isc_format *fmt;
struct v4l2_subdev *subdev = isc->current_subdev->sd;
int num_fmts = 0, i, j;
unsigned int num_fmts, i, j;
struct v4l2_subdev_mbus_code_enum mbus_code = {
.which = V4L2_SUBDEV_FORMAT_ACTIVE,
};
fmt = &isc_formats[0];
for (i = 0; i < ARRAY_SIZE(isc_formats); i++) {
fmt->support = false;
fmt->isc_support = false;
fmt->sd_support = false;
fmt++;
}
@ -1092,8 +1480,21 @@ static int isc_formats_init(struct isc_device *isc)
if (!fmt)
continue;
fmt->support = true;
num_fmts++;
fmt->sd_support = true;
if (i <= RAW_FMT_IND_END) {
for (j = ISC_FMT_IND_START; j <= ISC_FMT_IND_END; j++)
isc_formats[j].isc_support = true;
isc->raw_fmt = fmt;
}
}
for (i = 0, num_fmts = 0; i < ARRAY_SIZE(isc_formats); i++) {
if (fmt->isc_support || fmt->sd_support)
num_fmts++;
fmt++;
}
if (!num_fmts)
@ -1110,7 +1511,7 @@ static int isc_formats_init(struct isc_device *isc)
fmt = &isc_formats[0];
for (i = 0, j = 0; i < ARRAY_SIZE(isc_formats); i++) {
if (fmt->support)
if (fmt->isc_support || fmt->sd_support)
isc->user_formats[j++] = fmt;
fmt++;
@ -1132,7 +1533,7 @@ static int isc_set_default_fmt(struct isc_device *isc)
};
int ret;
ret = isc_try_fmt(isc, &f, NULL);
ret = isc_try_fmt(isc, &f, NULL, NULL);
if (ret)
return ret;
@ -1151,6 +1552,12 @@ static int isc_async_complete(struct v4l2_async_notifier *notifier)
struct vb2_queue *q = &isc->vb2_vidq;
int ret;
ret = v4l2_device_register_subdev_nodes(&isc->v4l2_dev);
if (ret < 0) {
v4l2_err(&isc->v4l2_dev, "Failed to register subdev nodes\n");
return ret;
}
isc->current_subdev = container_of(notifier,
struct isc_subdev_entity, notifier);
sd_entity = isc->current_subdev;
@ -1198,6 +1605,14 @@ static int isc_async_complete(struct v4l2_async_notifier *notifier)
return ret;
}
ret = isc_ctrl_init(isc);
if (ret) {
v4l2_err(&isc->v4l2_dev, "Init isc ctrols failed: %d\n", ret);
return ret;
}
INIT_WORK(&isc->awb_work, isc_awb_work);
/* Register video device */
strlcpy(vdev->name, ATMEL_ISC_NAME, sizeof(vdev->name));
vdev->release = video_device_release_empty;
@ -1207,7 +1622,7 @@ static int isc_async_complete(struct v4l2_async_notifier *notifier)
vdev->vfl_dir = VFL_DIR_RX;
vdev->queue = q;
vdev->lock = &isc->lock;
vdev->ctrl_handler = isc->current_subdev->sd->ctrl_handler;
vdev->ctrl_handler = &isc->ctrls.handler;
vdev->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_CAPTURE;
video_set_drvdata(vdev, isc);