fmt->field = V4L2_FIELD_NONE;
}
+static int ov2740_load_otp_data(struct nvm_data *nvm)
+{
+ struct i2c_client *client = nvm->client;
+ struct ov2740 *ov2740 = to_ov2740(i2c_get_clientdata(client));
+ u32 isp_ctrl00 = 0;
+ u32 isp_ctrl01 = 0;
+ int ret;
+
+ if (!nvm)
+ return -EINVAL;
+
+ if (nvm->nvm_buffer)
+ return 0;
+
+ nvm->nvm_buffer = kzalloc(CUSTOMER_USE_OTP_SIZE, GFP_KERNEL);
+ if (!nvm->nvm_buffer)
+ return -ENOMEM;
+
+ ret = ov2740_read_reg(ov2740, OV2740_REG_ISP_CTRL00, 1, &isp_ctrl00);
+ if (ret) {
+ dev_err(&client->dev, "failed to read ISP CTRL00\n");
+ goto err;
+ }
+
+ ret = ov2740_read_reg(ov2740, OV2740_REG_ISP_CTRL01, 1, &isp_ctrl01);
+ if (ret) {
+ dev_err(&client->dev, "failed to read ISP CTRL01\n");
+ goto err;
+ }
+
+ /* Clear bit 5 of ISP CTRL00 */
+ ret = ov2740_write_reg(ov2740, OV2740_REG_ISP_CTRL00, 1,
+ isp_ctrl00 & ~BIT(5));
+ if (ret) {
+ dev_err(&client->dev, "failed to set ISP CTRL00\n");
+ goto err;
+ }
+
+ /* Clear bit 7 of ISP CTRL01 */
+ ret = ov2740_write_reg(ov2740, OV2740_REG_ISP_CTRL01, 1,
+ isp_ctrl01 & ~BIT(7));
+ if (ret) {
+ dev_err(&client->dev, "failed to set ISP CTRL01\n");
+ goto err;
+ }
+
+ ret = ov2740_write_reg(ov2740, OV2740_REG_MODE_SELECT, 1,
+ OV2740_MODE_STREAMING);
+ if (ret) {
+ dev_err(&client->dev, "failed to set streaming mode\n");
+ goto err;
+ }
+
+ /*
+ * Users are not allowed to access OTP-related registers and memory
+ * during the 20 ms period after streaming starts (0x100 = 0x01).
+ */
+ msleep(20);
+
+ ret = regmap_bulk_read(nvm->regmap, OV2740_REG_OTP_CUSTOMER,
+ nvm->nvm_buffer, CUSTOMER_USE_OTP_SIZE);
+ if (ret) {
+ dev_err(&client->dev, "failed to read OTP data, ret %d\n", ret);
+ goto err;
+ }
+
+ ret = ov2740_write_reg(ov2740, OV2740_REG_MODE_SELECT, 1,
+ OV2740_MODE_STANDBY);
+ if (ret) {
+ dev_err(&client->dev, "failed to set streaming mode\n");
+ goto err;
+ }
+
+ ret = ov2740_write_reg(ov2740, OV2740_REG_ISP_CTRL01, 1, isp_ctrl01);
+ if (ret) {
+ dev_err(&client->dev, "failed to set ISP CTRL01\n");
+ goto err;
+ }
+
+ ret = ov2740_write_reg(ov2740, OV2740_REG_ISP_CTRL00, 1, isp_ctrl00);
+ if (ret) {
+ dev_err(&client->dev, "failed to set ISP CTRL00\n");
+ goto err;
+ }
+
+ return 0;
+err:
+ kfree(nvm->nvm_buffer);
+ nvm->nvm_buffer = NULL;
+
+ return ret;
+}
+
static int ov2740_start_streaming(struct ov2740 *ov2740)
{
struct i2c_client *client = v4l2_get_subdevdata(&ov2740->sd);
+ struct nvm_data *nvm = ov2740->nvm;
const struct ov2740_reg_list *reg_list;
int link_freq_index;
int ret = 0;
+ ov2740_load_otp_data(nvm);
+
link_freq_index = ov2740->cur_mode->link_freq_index;
reg_list = &link_freq_configs[link_freq_index].reg_list;
ret = ov2740_write_reg_list(ov2740, reg_list);
return 0;
}
-static int ov2740_load_otp_data(struct nvm_data *nvm)
-{
- struct i2c_client *client = nvm->client;
- struct ov2740 *ov2740 = to_ov2740(i2c_get_clientdata(client));
- u32 isp_ctrl00 = 0;
- u32 isp_ctrl01 = 0;
- int ret;
-
- if (!nvm)
- return -EINVAL;
-
- if (nvm->nvm_buffer)
- return 0;
-
- nvm->nvm_buffer = kzalloc(CUSTOMER_USE_OTP_SIZE, GFP_KERNEL);
- if (!nvm->nvm_buffer)
- return -ENOMEM;
-
- ret = ov2740_read_reg(ov2740, OV2740_REG_ISP_CTRL00, 1, &isp_ctrl00);
- if (ret) {
- dev_err(&client->dev, "failed to read ISP CTRL00\n");
- goto err;
- }
-
- ret = ov2740_read_reg(ov2740, OV2740_REG_ISP_CTRL01, 1, &isp_ctrl01);
- if (ret) {
- dev_err(&client->dev, "failed to read ISP CTRL01\n");
- goto err;
- }
-
- /* Clear bit 5 of ISP CTRL00 */
- ret = ov2740_write_reg(ov2740, OV2740_REG_ISP_CTRL00, 1,
- isp_ctrl00 & ~BIT(5));
- if (ret) {
- dev_err(&client->dev, "failed to set ISP CTRL00\n");
- goto err;
- }
-
- /* Clear bit 7 of ISP CTRL01 */
- ret = ov2740_write_reg(ov2740, OV2740_REG_ISP_CTRL01, 1,
- isp_ctrl01 & ~BIT(7));
- if (ret) {
- dev_err(&client->dev, "failed to set ISP CTRL01\n");
- goto err;
- }
-
- ret = ov2740_write_reg(ov2740, OV2740_REG_MODE_SELECT, 1,
- OV2740_MODE_STREAMING);
- if (ret) {
- dev_err(&client->dev, "failed to set streaming mode\n");
- goto err;
- }
-
- /*
- * Users are not allowed to access OTP-related registers and memory
- * during the 20 ms period after streaming starts (0x100 = 0x01).
- */
- msleep(20);
-
- ret = regmap_bulk_read(nvm->regmap, OV2740_REG_OTP_CUSTOMER,
- nvm->nvm_buffer, CUSTOMER_USE_OTP_SIZE);
- if (ret) {
- dev_err(&client->dev, "failed to read OTP data, ret %d\n", ret);
- goto err;
- }
-
- ret = ov2740_write_reg(ov2740, OV2740_REG_MODE_SELECT, 1,
- OV2740_MODE_STANDBY);
- if (ret) {
- dev_err(&client->dev, "failed to set streaming mode\n");
- goto err;
- }
-
- ret = ov2740_write_reg(ov2740, OV2740_REG_ISP_CTRL01, 1, isp_ctrl01);
- if (ret) {
- dev_err(&client->dev, "failed to set ISP CTRL01\n");
- goto err;
- }
-
- ret = ov2740_write_reg(ov2740, OV2740_REG_ISP_CTRL00, 1, isp_ctrl00);
- if (ret) {
- dev_err(&client->dev, "failed to set ISP CTRL00\n");
- goto err;
- }
-
- return 0;
-err:
- kfree(nvm->nvm_buffer);
- nvm->nvm_buffer = NULL;
-
- return ret;
-}
-
static int ov2740_nvmem_read(void *priv, unsigned int off, void *val,
size_t count)
{