From efe7d640ef486c4c0c305641dbcacc6918542b76 Mon Sep 17 00:00:00 2001 From: Mika Westerberg Date: Wed, 10 Apr 2013 00:36:39 +0000 Subject: [PATCH] i2c-designware: use dynamic adapter numbering on Lynxpoint It is not good idea to mix static and dynamic I2C adapter numbering. In this particular case on Lynxpoint we had graphics I2C adapter which took the first numbers preventing the designware I2C driver from using the adapter numbers it preferred. Since Lynxpoint support was just introduced and there is no hardware available outside Intel we can fix this by switching to use dynamic adapter numbering instead of static. Signed-off-by: Mika Westerberg Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-designware-platdrv.c | 9 --------- 1 file changed, 9 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index c53a3127f694..2a596dd1ec66 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -56,20 +56,11 @@ static u32 i2c_dw_get_clk_rate_khz(struct dw_i2c_dev *dev) static int dw_i2c_acpi_configure(struct platform_device *pdev) { struct dw_i2c_dev *dev = platform_get_drvdata(pdev); - struct acpi_device *adev; - int busno, ret; if (!ACPI_HANDLE(&pdev->dev)) return -ENODEV; - ret = acpi_bus_get_device(ACPI_HANDLE(&pdev->dev), &adev); - if (ret) - return -ENODEV; - dev->adapter.nr = -1; - if (adev->pnp.unique_id && !kstrtoint(adev->pnp.unique_id, 0, &busno)) - dev->adapter.nr = busno; - dev->tx_fifo_depth = 32; dev->rx_fifo_depth = 32; return 0;