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intelfb: add preliminary i2c support

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Adds code to unregister the I2C buses in the cleanup function.

Signed-off-by: Dennis Munsie <dmunsie@cecropia.com>
This commit is contained in:
Dennis Munsie 2006-06-20 14:55:55 -04:00 committed by Dave Airlie
parent 1f6e8449e1
commit 7627899b11
3 changed files with 22 additions and 0 deletions
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1
drivers/video/intelfb/intelfb.h
View File

@ -367,6 +367,7 @@ extern int intelfb_var_to_depth(const struct fb_var_screeninfo *var);
#ifdef CONFIG_FB_INTEL_I2C
extern void intelfb_create_i2c_busses(struct intelfb_info *dinfo);
extern void intelfb_delete_i2c_busses(struct intelfb_info *dinfo);
#endif
#endif /* _INTELFB_H */

16
drivers/video/intelfb/intelfb_i2c.c
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@ -182,3 +182,19 @@ void intelfb_create_i2c_busses(struct intelfb_info *dinfo)
}
dinfo->num_outputs = i;
}
void intelfb_delete_i2c_busses(struct intelfb_info *dinfo)
{
int i;
for (i = 0; i < MAX_OUTPUTS; i++) {
if (dinfo->output[i].i2c_bus.dinfo) {
i2c_bit_del_bus(&dinfo->output[i].i2c_bus.adapter);
dinfo->output[i].i2c_bus.dinfo = NULL;
}
if (dinfo->output[i].ddc_bus.dinfo) {
i2c_bit_del_bus(&dinfo->output[i].ddc_bus.adapter);
dinfo->output[i].ddc_bus.dinfo = NULL;
}
}
}

5
drivers/video/intelfb/intelfbdrv.c
View File

@ -474,6 +474,11 @@ cleanup(struct intelfb_info *dinfo)
agp_free_memory(dinfo->gtt_ring_mem);
}
#ifdef CONFIG_FB_INTEL_I2C
/* un-register I2C bus */
intelfb_delete_i2c_busses(dinfo);
#endif
if (dinfo->mmio_base)
iounmap((void __iomem *)dinfo->mmio_base);
if (dinfo->aperture.virtual)