blob: 173fcd5a0fc35294d2a51dcecdc8543cc780db7c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
|
--- a/drivers/i2c/busses/i2c-imx.c
+++ b/drivers/i2c/busses/i2c-imx.c
@@ -469,6 +469,8 @@ static int i2c_imx_acked(struct imx_i2c_
{
if (imx_i2c_read_reg(i2c_imx, IMX_I2C_I2SR) & I2SR_RXAK) {
dev_dbg(&i2c_imx->adapter.dev, "<%s> No ACK\n", __func__);
+ if (i2c_imx->adapter.retries)
+ return -EAGAIN;
return -ENXIO; /* No ACK */
}
@@ -1072,6 +1074,10 @@ static int i2c_imx_probe(struct platform
i2c_imx->adapter.nr = pdev->id;
i2c_imx->adapter.dev.of_node = pdev->dev.of_node;
i2c_imx->base = base;
+ if (of_machine_is_compatible("gw,ventana") && phy_addr == 0x021a0000) {
+ dev_info(&pdev->dev, "Adding retries for Ventana GSC\n");
+ i2c_imx->adapter.retries = 3;
+ }
/* Get I2C clock */
i2c_imx->clk = devm_clk_get(&pdev->dev, NULL);
|
