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path: root/drivers/gpu/drm/radeon
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-rw-r--r--drivers/gpu/drm/radeon/atombios_encoders.c8
-rw-r--r--drivers/gpu/drm/radeon/radeon_atpx_handler.c3
-rw-r--r--drivers/gpu/drm/radeon/radeon_connectors.c6
-rw-r--r--drivers/gpu/drm/radeon/radeon_drv.c11
4 files changed, 19 insertions, 9 deletions
diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c
index 01b20e14a247..1603751b1164 100644
--- a/drivers/gpu/drm/radeon/atombios_encoders.c
+++ b/drivers/gpu/drm/radeon/atombios_encoders.c
@@ -2623,16 +2623,8 @@ radeon_atom_ext_dpms(struct drm_encoder *encoder, int mode)
}
-static bool radeon_atom_ext_mode_fixup(struct drm_encoder *encoder,
- const struct drm_display_mode *mode,
- struct drm_display_mode *adjusted_mode)
-{
- return true;
-}
-
static const struct drm_encoder_helper_funcs radeon_atom_ext_helper_funcs = {
.dpms = radeon_atom_ext_dpms,
- .mode_fixup = radeon_atom_ext_mode_fixup,
.prepare = radeon_atom_ext_prepare,
.mode_set = radeon_atom_ext_mode_set,
.commit = radeon_atom_ext_commit,
diff --git a/drivers/gpu/drm/radeon/radeon_atpx_handler.c b/drivers/gpu/drm/radeon/radeon_atpx_handler.c
index c4b4f298a283..56482e35d43e 100644
--- a/drivers/gpu/drm/radeon/radeon_atpx_handler.c
+++ b/drivers/gpu/drm/radeon/radeon_atpx_handler.c
@@ -551,13 +551,14 @@ static bool radeon_atpx_detect(void)
void radeon_register_atpx_handler(void)
{
bool r;
+ enum vga_switcheroo_handler_flags_t handler_flags = 0;
/* detect if we have any ATPX + 2 VGA in the system */
r = radeon_atpx_detect();
if (!r)
return;
- vga_switcheroo_register_handler(&radeon_atpx_handler);
+ vga_switcheroo_register_handler(&radeon_atpx_handler, handler_flags);
}
/**
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index 340f3f549f29..cfcc099c537d 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -34,6 +34,7 @@
#include "atom.h"
#include <linux/pm_runtime.h>
+#include <linux/vga_switcheroo.h>
static int radeon_dp_handle_hpd(struct drm_connector *connector)
{
@@ -344,6 +345,11 @@ static void radeon_connector_get_edid(struct drm_connector *connector)
else if (radeon_connector->ddc_bus)
radeon_connector->edid = drm_get_edid(&radeon_connector->base,
&radeon_connector->ddc_bus->adapter);
+ } else if (vga_switcheroo_handler_flags() & VGA_SWITCHEROO_CAN_SWITCH_DDC &&
+ connector->connector_type == DRM_MODE_CONNECTOR_LVDS &&
+ radeon_connector->ddc_bus) {
+ radeon_connector->edid = drm_get_edid_switcheroo(&radeon_connector->base,
+ &radeon_connector->ddc_bus->adapter);
} else if (radeon_connector->ddc_bus) {
radeon_connector->edid = drm_get_edid(&radeon_connector->base,
&radeon_connector->ddc_bus->adapter);
diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index e266ffc520d2..cad25557650f 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -34,9 +34,11 @@
#include "radeon_drv.h"
#include <drm/drm_pciids.h>
+#include <linux/apple-gmux.h>
#include <linux/console.h>
#include <linux/module.h>
#include <linux/pm_runtime.h>
+#include <linux/vgaarb.h>
#include <linux/vga_switcheroo.h>
#include <drm/drm_gem.h>
@@ -319,6 +321,15 @@ static int radeon_pci_probe(struct pci_dev *pdev,
{
int ret;
+ /*
+ * apple-gmux is needed on dual GPU MacBook Pro
+ * to probe the panel if we're the inactive GPU.
+ */
+ if (IS_ENABLED(CONFIG_VGA_ARB) && IS_ENABLED(CONFIG_VGA_SWITCHEROO) &&
+ apple_gmux_present() && pdev != vga_default_device() &&
+ !vga_switcheroo_handler_flags())
+ return -EPROBE_DEFER;
+
/* Get rid of things like offb */
ret = radeon_kick_out_firmware_fb(pdev);
if (ret)