diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/808-i2c-0012-i2c-imx-correct-code-of-errata-A-010650-for-layersca.patch')
| -rw-r--r-- | target/linux/layerscape/patches-5.4/808-i2c-0012-i2c-imx-correct-code-of-errata-A-010650-for-layersca.patch | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/target/linux/layerscape/patches-5.4/808-i2c-0012-i2c-imx-correct-code-of-errata-A-010650-for-layersca.patch b/target/linux/layerscape/patches-5.4/808-i2c-0012-i2c-imx-correct-code-of-errata-A-010650-for-layersca.patch index fe6d6d3135..7fd505df42 100644 --- a/target/linux/layerscape/patches-5.4/808-i2c-0012-i2c-imx-correct-code-of-errata-A-010650-for-layersca.patch +++ b/target/linux/layerscape/patches-5.4/808-i2c-0012-i2c-imx-correct-code-of-errata-A-010650-for-layersca.patch @@ -17,8 +17,8 @@ Signed-off-by: Biwen Li <biwen.li@nxp.com> --- a/drivers/i2c/busses/i2c-imx.c +++ b/drivers/i2c/busses/i2c-imx.c -@@ -503,6 +503,14 @@ static void i2c_imx_dma_free(struct imx_ - dma->chan_using = NULL; +@@ -516,6 +516,14 @@ static void i2c_imx_clear_irq(struct imx + imx_i2c_write_reg(temp, i2c_imx, IMX_I2C_I2SR); } +/* Clear arbitration lost bit */ @@ -32,17 +32,16 @@ Signed-off-by: Biwen Li <biwen.li@nxp.com> static int i2c_imx_bus_busy(struct imx_i2c_struct *i2c_imx, int for_busy) { unsigned long orig_jiffies = jiffies; -@@ -515,8 +523,7 @@ static int i2c_imx_bus_busy(struct imx_i +@@ -528,7 +536,7 @@ static int i2c_imx_bus_busy(struct imx_i /* check for arbitration lost */ if (temp & I2SR_IAL) { -- temp &= ~I2SR_IAL; -- imx_i2c_write_reg(temp, i2c_imx, IMX_I2C_I2SR); +- i2c_imx_clear_irq(i2c_imx, I2SR_IAL); + i2c_imx_clr_al_bit(temp, i2c_imx); return -EAGAIN; } -@@ -700,14 +707,6 @@ static void i2c_imx_clr_if_bit(unsigned +@@ -724,14 +732,6 @@ static void i2c_imx_clr_if_bit(unsigned imx_i2c_write_reg(status, i2c_imx, IMX_I2C_I2SR); } @@ -57,7 +56,7 @@ Signed-off-by: Biwen Li <biwen.li@nxp.com> static irqreturn_t i2c_imx_master_isr(struct imx_i2c_struct *i2c_imx) { unsigned int status; -@@ -1050,12 +1049,14 @@ static int i2c_imx_recovery_for_layersca +@@ -1080,12 +1080,14 @@ static int i2c_imx_recovery_for_layersca gpio_set_value(i2c_imx->gpio, 1); /* @@ -77,7 +76,7 @@ Signed-off-by: Biwen Li <biwen.li@nxp.com> /* Restore the saved value of the register SCFG_RCWPMUXCR0 */ if (i2c_imx->need_set_pmuxcr == 1) { -@@ -1069,10 +1070,9 @@ static int i2c_imx_recovery_for_layersca +@@ -1099,10 +1101,9 @@ static int i2c_imx_recovery_for_layersca * I2C_IBSR[IBAL] = 1 */ temp = imx_i2c_read_reg(i2c_imx, IMX_I2C_I2SR); |