Attachment 205461 Details for Bug 238037 – patch with ig4_iic.c ig4iic_attach() updates from DragonflyBSD

[patch] patch with ig4_iic.c ig4iic_attach() updates from DragonflyBSD

ig4_iic.c.diff (text/plain), 1.13 KB, created by J.R. Oldroyd on 2019-07-01 13:25:48 UTC

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Creator: J.R. Oldroyd

Created: 2019-07-01 13:25:48 UTC

Size: 1.13 KB

patch

obsolete

>Index: ig4_iic.c
>===================================================================
>--- ig4_iic.c	(revision 349304)
>+++ ig4_iic.c	(working copy)
>@@ -579,6 +579,9 @@
> 	v = reg_read(sc, IG4_REG_SS_SCL_LCNT);
> 	reg_write(sc, IG4_REG_FS_SCL_LCNT, v);
> 
>+	reg_read(sc, IG4_REG_CLR_INTR);
>+	reg_write(sc, IG4_REG_INTR_MASK, 0);
>+
> 	/*
> 	 * Program based on a 25000 Hz clock.  This is a bit of a
> 	 * hack (obviously).  The defaults are 400 and 470 for standard
>@@ -590,6 +593,7 @@
> 	reg_write(sc, IG4_REG_SS_SCL_LCNT, 125);
> 	reg_write(sc, IG4_REG_FS_SCL_HCNT, 100);
> 	reg_write(sc, IG4_REG_FS_SCL_LCNT, 125);
>+	reg_write(sc, IG4_REG_SDA_HOLD, 1);
> 
> 	/*
> 	 * Use a threshold of 1 so we get interrupted on each character,
>@@ -631,6 +635,8 @@
> 		device_printf(sc->dev, "controller error during attach-1\n");
> 	if (set_controller(sc, IG4_I2C_ENABLE))
> 		device_printf(sc->dev, "controller error during attach-2\n");
>+	if (set_controller(sc, 0))
>+		device_printf(sc->dev, "controller error during attach-3\n");
> 	mtx_unlock(&sc->io_lock);
> 	error = bus_setup_intr(sc->dev, sc->intr_res, INTR_TYPE_MISC | INTR_MPSAFE,
> 			       NULL, ig4iic_intr, sc, &sc->intr_handle);

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Attachments on bug 238037: 204527 | 205417 | 205432 | 205447 | 205461 | 205573 | 205867 | 207593