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media: i2c: ov5695: to speed up stream on

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reduce 1296x972 regs.
reg list write change to continue instead of one by one.
TODO: to i2c write faster, config i2c to 400k.
clock-frequency = <400000>; to i2c node.

Change-Id: I4294cb9ba37bd1e2550a122ff45420a66911ebd9
Signed-off-by: Cai YiWei <cyw@rock-chips.com>
This commit is contained in:
Cai YiWei
2018-12-27 09:35:03 +08:00
committed by Tao Huang
parent 626ba6d88f
commit 22fcda3e9d
1 changed files with 53 additions and 162 deletions
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215
drivers/media/i2c/ov5695.c
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@@ -69,6 +69,10 @@
#define OV5695_LANES 2
#define OV5695_BITS_PER_SAMPLE 10
#define I2C_M_WR 0
#define I2C_MSG_MAX 300
#define I2C_DATA_MAX (I2C_MSG_MAX * 3)
static const char * const ov5695_supply_names[] = {
"avdd", /* Analog power */
"dovdd", /* Digital I/O power */
@@ -385,175 +389,18 @@ static const struct regval ov5695_1920x1080_regs[] = {
* mipi_datarate per lane 840Mbps
*/
static const struct regval ov5695_1296x972_regs[] = {
{0x0103, 0x01},
{0x0100, 0x00},
{0x0300, 0x04},
{0x0301, 0x00},
{0x0302, 0x69},
{0x0303, 0x00},
{0x0304, 0x00},
{0x0305, 0x01},
{0x0307, 0x00},
{0x030b, 0x00},
{0x030c, 0x00},
{0x030d, 0x1e},
{0x030e, 0x04},
{0x030f, 0x03},
{0x0312, 0x01},
{0x3000, 0x00},
{0x3002, 0xa1},
{0x3008, 0x00},
{0x3010, 0x00},
{0x3016, 0x32},
{0x3022, 0x51},
{0x3106, 0x15},
{0x3107, 0x01},
{0x3108, 0x05},
{0x3500, 0x00},
{0x3501, 0x3e},
{0x3502, 0x00},
{0x3503, 0x08},
{0x3504, 0x03},
{0x3505, 0x8c},
{0x3507, 0x03},
{0x3508, 0x00},
{0x3509, 0x10},
{0x350c, 0x00},
{0x350d, 0x80},
{0x3510, 0x00},
{0x3511, 0x02},
{0x3512, 0x00},
{0x3601, 0x55},
{0x3602, 0x58},
{0x3611, 0x58},
{0x3614, 0x30},
{0x3615, 0x77},
{0x3621, 0x08},
{0x3624, 0x40},
{0x3633, 0x0c},
{0x3634, 0x0c},
{0x3635, 0x0c},
{0x3636, 0x0c},
{0x3638, 0x00},
{0x3639, 0x00},
{0x363a, 0x00},
{0x363b, 0x00},
{0x363c, 0xff},
{0x363d, 0xfa},
{0x3650, 0x44},
{0x3651, 0x44},
{0x3652, 0x44},
{0x3653, 0x44},
{0x3654, 0x44},
{0x3655, 0x44},
{0x3656, 0x44},
{0x3657, 0x44},
{0x3660, 0x00},
{0x3661, 0x00},
{0x3662, 0x00},
{0x366a, 0x00},
{0x366e, 0x0c},
{0x3673, 0x04},
{0x3700, 0x14},
{0x3703, 0x0c},
{0x3706, 0x24},
{0x3714, 0x27},
{0x3715, 0x01},
{0x3716, 0x00},
{0x3717, 0x02},
{0x3733, 0x10},
{0x3734, 0x40},
{0x373f, 0xa0},
{0x3765, 0x20},
{0x37a1, 0x1d},
{0x37a8, 0x26},
{0x37ab, 0x14},
{0x37c2, 0x04},
{0x37c3, 0xf0},
{0x37cb, 0x09},
{0x37cc, 0x13},
{0x37cd, 0x1f},
{0x37ce, 0x1f},
{0x3800, 0x00},
{0x3801, 0x00},
{0x3802, 0x00},
{0x3803, 0x00},
{0x3804, 0x0a},
{0x3805, 0x3f},
{0x3806, 0x07},
{0x3807, 0xaf},
{0x3808, 0x05},
{0x3809, 0x10},
{0x380a, 0x03},
{0x380b, 0xcc},
{0x380c, 0x02},
{0x380d, 0xe4},
{0x380e, 0x03},
{0x380f, 0xf4},
{0x3810, 0x00},
{0x3811, 0x00},
{0x3812, 0x00},
{0x3813, 0x06},
{0x3814, 0x03},
{0x3815, 0x01},
{0x3816, 0x03},
{0x3817, 0x01},
{0x3818, 0x00},
{0x3819, 0x00},
{0x381a, 0x00},
{0x381b, 0x01},
{0x3820, 0x8b},
{0x3821, 0x01},
{0x3c80, 0x08},
{0x3c82, 0x00},
{0x3c83, 0x00},
{0x3c88, 0x00},
{0x3d85, 0x14},
{0x3f02, 0x08},
{0x3f03, 0x10},
{0x4008, 0x02},
{0x4009, 0x09},
{0x404e, 0x20},
{0x4501, 0x00},
{0x4502, 0x10},
{0x4800, 0x00},
{0x481f, 0x2a},
{0x4837, 0x13},
{0x5000, 0x13},
{0x5780, 0x3e},
{0x5781, 0x0f},
{0x5782, 0x44},
{0x5783, 0x02},
{0x5784, 0x01},
{0x5785, 0x01},
{0x5786, 0x00},
{0x5787, 0x04},
{0x5788, 0x02},
{0x5789, 0x0f},
{0x578a, 0xfd},
{0x578b, 0xf5},
{0x578c, 0xf5},
{0x578d, 0x03},
{0x578e, 0x08},
{0x578f, 0x0c},
{0x5790, 0x08},
{0x5791, 0x06},
{0x5792, 0x00},
{0x5793, 0x52},
{0x5794, 0xa3},
{0x5b00, 0x00},
{0x5b01, 0x1c},
{0x5b02, 0x00},
{0x5b03, 0x7f},
{0x5b05, 0x6c},
{0x5e10, 0xfc},
{0x4010, 0xf1},
{0x3503, 0x08},
{0x3505, 0x8c},
{0x3507, 0x03},
{0x3508, 0x00},
{0x3509, 0xf8},
{0x0100, 0x01},
{REG_NULL, 0x00}
};
@@ -734,14 +581,58 @@ static int ov5695_write_reg(struct i2c_client *client, u16 reg,
static int ov5695_write_array(struct i2c_client *client,
const struct regval *regs)
{
u32 i;
u8 *data;
u32 i, j = 0, k = 0;
int ret = 0;
struct i2c_msg *msg;
for (i = 0; ret == 0 && regs[i].addr != REG_NULL; i++)
ret = ov5695_write_reg(client, regs[i].addr,
OV5695_REG_VALUE_08BIT, regs[i].val);
msg = kmalloc((sizeof(struct i2c_msg) * I2C_MSG_MAX),
GFP_KERNEL);
if (!msg)
return -ENOMEM;
return ret;
data = kmalloc((sizeof(unsigned char) * I2C_DATA_MAX),
GFP_KERNEL);
if (!data) {
kfree(msg);
return -ENOMEM;
}
for (i = 0; regs[i].addr != REG_NULL; i++) {
(msg + j)->addr = client->addr;
(msg + j)->flags = I2C_M_WR;
(msg + j)->buf = (data + k);
data[k + 0] = (u8)(regs[i].addr >> 8);
data[k + 1] = (u8)(regs[i].addr & 0xFF);
data[k + 2] = (u8)(regs[i].val & 0xFF);
k = k + 3;
(msg + j)->len = 3;
if (j++ == (I2C_MSG_MAX - 1)) {
ret = i2c_transfer(client->adapter, msg, j);
if (ret < 0) {
kfree(msg);
kfree(data);
return ret;
}
j = 0;
k = 0;
}
}
if (j != 0) {
ret = i2c_transfer(client->adapter, msg, j);
if (ret < 0) {
kfree(msg);
kfree(data);
return ret;
}
}
kfree(msg);
kfree(data);
return 0;
}
/* Read registers up to 4 at a time */