diff options
| -rw-r--r-- | drivers/i2c/busses/i2c-designware-core.c | 7 | ||||
| -rw-r--r-- | drivers/i2c/busses/i2c-designware-platdrv.c | 9 |
2 files changed, 11 insertions, 5 deletions
diff --git a/drivers/i2c/busses/i2c-designware-core.c b/drivers/i2c/busses/i2c-designware-core.c index c6922b806fb7..07edff7a62e3 100644 --- a/drivers/i2c/busses/i2c-designware-core.c +++ b/drivers/i2c/busses/i2c-designware-core.c @@ -347,8 +347,11 @@ int i2c_dw_init(struct dw_i2c_dev *dev) dw_writel(dev, lcnt, DW_IC_SS_SCL_LCNT); dev_dbg(dev->dev, "Standard-mode HCNT:LCNT = %d:%d\n", hcnt, lcnt); - /* Set SCL timing parameters for fast-mode */ - if (dev->fs_hcnt && dev->fs_lcnt) { + /* Set SCL timing parameters for fast-mode or fast-mode plus */ + if ((dev->clk_freq == 1000000) && dev->fp_hcnt && dev->fp_lcnt) { + hcnt = dev->fp_hcnt; + lcnt = dev->fp_lcnt; + } else if (dev->fs_hcnt && dev->fs_lcnt) { hcnt = dev->fs_hcnt; lcnt = dev->fs_lcnt; } else { diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index cbe4fb31cb4b..ea92e9f3fba1 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -196,10 +196,13 @@ static int dw_i2c_plat_probe(struct platform_device *pdev) dw_i2c_acpi_configure(pdev); /* - * Only standard mode at 100kHz and fast mode at 400kHz are supported. + * Only standard mode at 100kHz, fast mode at 400kHz, + * and fast mode plus at 1MHz are supported. */ - if (dev->clk_freq != 100000 && dev->clk_freq != 400000) { - dev_err(&pdev->dev, "Only 100kHz and 400kHz supported"); + if (dev->clk_freq != 100000 && dev->clk_freq != 400000 + && dev->clk_freq != 1000000) { + dev_err(&pdev->dev, + "Only 100kHz, 400kHz and 1MHz are supported"); return -EINVAL; } |