drm/i915: don't register invalid gmbus pins for bdw
Do not expose invalid gmbus pins as i2c devices to userspace.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/intel_i2c.c b/drivers/gpu/drm/i915/intel_i2c.c
index 3daa7e3..76070c4 100644
--- a/drivers/gpu/drm/i915/intel_i2c.c
+++ b/drivers/gpu/drm/i915/intel_i2c.c
@@ -49,6 +49,13 @@
[GMBUS_PIN_DPD] = { "dpd", GPIOF },
};
+static const struct gmbus_pin gmbus_pins_bdw[] = {
+ [GMBUS_PIN_VGADDC] = { "vga", GPIOA },
+ [GMBUS_PIN_DPC] = { "dpc", GPIOD },
+ [GMBUS_PIN_DPB] = { "dpb", GPIOE },
+ [GMBUS_PIN_DPD] = { "dpd", GPIOF },
+};
+
static const struct gmbus_pin gmbus_pins_bxt[] = {
[GMBUS_PIN_1_BXT] = { "dpb", PCH_GPIOB },
[GMBUS_PIN_2_BXT] = { "dpc", PCH_GPIOC },
@@ -61,6 +68,8 @@
{
if (IS_BROXTON(dev_priv))
return &gmbus_pins_bxt[pin];
+ else if (IS_BROADWELL(dev_priv))
+ return &gmbus_pins_bdw[pin];
else
return &gmbus_pins[pin];
}
@@ -72,6 +81,8 @@
if (IS_BROXTON(dev_priv))
size = ARRAY_SIZE(gmbus_pins_bxt);
+ else if (IS_BROADWELL(dev_priv))
+ size = ARRAY_SIZE(gmbus_pins_bdw);
else
size = ARRAY_SIZE(gmbus_pins);