diff options
Diffstat (limited to 'drivers/i2c/busses/i2c-designware-platdrv.c')
| -rw-r--r-- | drivers/i2c/busses/i2c-designware-platdrv.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index 2b463c313e4..c270f5f9a8f 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -195,6 +195,10 @@ static int dw_i2c_probe(struct platform_device *pdev) clk_freq = pdata->i2c_scl_freq; } + r = i2c_dw_eval_lock_support(dev); + if (r) + return r; + dev->functionality = I2C_FUNC_I2C | I2C_FUNC_10BIT_ADDR | @@ -257,10 +261,14 @@ static int dw_i2c_probe(struct platform_device *pdev) return r; } - pm_runtime_set_autosuspend_delay(&pdev->dev, 1000); - pm_runtime_use_autosuspend(&pdev->dev); - pm_runtime_set_active(&pdev->dev); - pm_runtime_enable(&pdev->dev); + if (dev->pm_runtime_disabled) { + pm_runtime_forbid(&pdev->dev); + } else { + pm_runtime_set_autosuspend_delay(&pdev->dev, 1000); + pm_runtime_use_autosuspend(&pdev->dev); + pm_runtime_set_active(&pdev->dev); + pm_runtime_enable(&pdev->dev); + } return 0; } @@ -310,7 +318,9 @@ static int dw_i2c_resume(struct device *dev) struct dw_i2c_dev *i_dev = platform_get_drvdata(pdev); clk_prepare_enable(i_dev->clk); - i2c_dw_init(i_dev); + + if (!i_dev->pm_runtime_disabled) + i2c_dw_init(i_dev); return 0; } |