diff options
Diffstat (limited to 'target/linux/imx6/patches-3.10/0004-i2c-imx-retry-on-NAK.patch')
| -rw-r--r-- | target/linux/imx6/patches-3.10/0004-i2c-imx-retry-on-NAK.patch | 38 |
1 files changed, 0 insertions, 38 deletions
diff --git a/target/linux/imx6/patches-3.10/0004-i2c-imx-retry-on-NAK.patch b/target/linux/imx6/patches-3.10/0004-i2c-imx-retry-on-NAK.patch deleted file mode 100644 index e876c6ed49..0000000000 --- a/target/linux/imx6/patches-3.10/0004-i2c-imx-retry-on-NAK.patch +++ /dev/null @@ -1,38 +0,0 @@ -From: Tim Harvey <tharvey@gateworks.com> -Subject: [PATCH] i2c: imx: retry on NAK - -In case of busy i2c try again to get ACK. - -Signed-off-by: Tim Harvey <tharvey@gateworks.com> -Tested-by: Luka Perkov <luka@openwrt.org> ---- - drivers/i2c/busses/i2c-imx.c | 4 +++- - 1 file changed, 3 insertions(+), 1 deletion(-) - ---- a/drivers/i2c/busses/i2c-imx.c -+++ b/drivers/i2c/busses/i2c-imx.c -@@ -62,6 +62,7 @@ - - /* Default value */ - #define IMX_I2C_BIT_RATE 100000 /* 100kHz */ -+#define IMX_I2C_MAX_RETRIES 3 /* number of retries to attempt */ - - /* IMX I2C registers */ - #define IMX_I2C_IADR 0x00 /* i2c slave address */ -@@ -198,7 +199,7 @@ static int i2c_imx_acked(struct imx_i2c_ - { - if (readb(i2c_imx->base + IMX_I2C_I2SR) & I2SR_RXAK) { - dev_dbg(&i2c_imx->adapter.dev, "<%s> No ACK\n", __func__); -- return -EIO; /* No ACK */ -+ return -EAGAIN; /* try again */ - } - - dev_dbg(&i2c_imx->adapter.dev, "<%s> ACK received\n", __func__); -@@ -533,6 +534,7 @@ static int __init i2c_imx_probe(struct p - i2c_imx->adapter.dev.parent = &pdev->dev; - i2c_imx->adapter.nr = pdev->id; - i2c_imx->adapter.dev.of_node = pdev->dev.of_node; -+ i2c_imx->adapter.retries = IMX_I2C_MAX_RETRIES; - i2c_imx->base = base; - - pinctrl = devm_pinctrl_get_select_default(&pdev->dev); |