drm/amdgpu: add OEM i2c bus for polaris chips

It uses the VGADCC bus. DC doesn't use this bus, so it
is safe to add it here.

Reviewed-by: Harry Wentland <[email protected]>
Signed-off-by: Ale

drm/amdgpu: add OEM i2c bus for polaris chips

It uses the VGADCC bus. DC doesn't use this bus, so it
is safe to add it here.

Reviewed-by: Harry Wentland <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

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drm/amdgpu: rework i2c init and fini

No functional change. Rework the code to allow for
adding some additional i2c buses in conjunction with DC
in the future.

Reviewed-by: Harry Wentland <harry.we

drm/amdgpu: rework i2c init and fini

No functional change. Rework the code to allow for
adding some additional i2c buses in conjunction with DC
in the future.

Reviewed-by: Harry Wentland <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

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drm/amdgpu: Remove unused amdgpu_i2c functions

amdgpu_i2c_add and amdgpu_i2c_init were added in 2015's commit
d38ceaf99ed0 ("drm/amdgpu: add core driver (v4)")
but never used.

Remove them.

Signed-

drm/amdgpu: Remove unused amdgpu_i2c functions

amdgpu_i2c_add and amdgpu_i2c_init were added in 2015's commit
d38ceaf99ed0 ("drm/amdgpu: add core driver (v4)")
but never used.

Remove them.

Signed-off-by: Dr. David Alan Gilbert <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

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drm/amdgpu: add return result for amdgpu_i2c_{get/put}_byte

After amdgpu_i2c_get_byte fail, amdgpu_i2c_put_byte shouldn't be
conducted to put wrong value.
So return and check the i2c transfer result

drm/amdgpu: add return result for amdgpu_i2c_{get/put}_byte

After amdgpu_i2c_get_byte fail, amdgpu_i2c_put_byte shouldn't be
conducted to put wrong value.
So return and check the i2c transfer result.

Signed-off-by: Bob Zhou <[email protected]>
Reviewed-by: Christian König <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

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drm: remove I2C_CLASS_DDC support

After removal of the legacy EEPROM driver and I2C_CLASS_DDC support in
olpc_dcon there's no i2c client driver left supporting I2C_CLASS_DDC.
Class-based device auto

drm: remove I2C_CLASS_DDC support

After removal of the legacy EEPROM driver and I2C_CLASS_DDC support in
olpc_dcon there's no i2c client driver left supporting I2C_CLASS_DDC.
Class-based device auto-detection is a legacy mechanism and shouldn't
be used in new code. So we can remove this class completely now.

Acked-by: Alex Deucher <[email protected]>
Acked-by: Dmitry Baryshkov <[email protected]>
Acked-by: Harry Wentland <[email protected]>
Acked-by: Heiko Stuebner <[email protected]>
Acked-by: Jani Nikula <[email protected]>
Acked-by: Jernej Skrabec <[email protected]>
Reviewed-by: Thomas Zimmermann <[email protected]>
Reviewed-by: Andi Shyti <[email protected]>
Reviewed-by: AngeloGioacchino Del Regno <[email protected]>
Reviewed-by: Neil Armstrong <[email protected]>
Signed-off-by: Heiner Kallweit <[email protected]>
Signed-off-by: Wolfram Sang <[email protected]>

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gpu: drm: amd: amdgpu: amdgpu_i2c: fix possible uninitialized-variable access in amdgpu_i2c_router_select_ddc_port()

The variable val is declared without initialization, and its address is
passed to

gpu: drm: amd: amdgpu: amdgpu_i2c: fix possible uninitialized-variable access in amdgpu_i2c_router_select_ddc_port()

The variable val is declared without initialization, and its address is
passed to amdgpu_i2c_get_byte(). In this function, the value of val is
accessed in:
DRM_DEBUG("i2c 0x%02x 0x%02x read failed\n",
addr, *val);

Also, when amdgpu_i2c_get_byte() returns, val may remain uninitialized,
but it is accessed in:
val &= ~amdgpu_connector->router.ddc_mux_control_pin;

To fix this possible uninitialized-variable access, initialize val to 0 in
amdgpu_i2c_router_select_ddc_port().

Reported-by: TOTE Robot <[email protected]>
Signed-off-by: Tuo Li <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

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drm/amdgpu: Remove references to struct drm_device.pdev

Using struct drm_device.pdev is deprecated. Convert amdgpu to struct
drm_device.dev. No functional changes.

v3:
* rebased

Signed-off-by: Th

drm/amdgpu: Remove references to struct drm_device.pdev

Using struct drm_device.pdev is deprecated. Convert amdgpu to struct
drm_device.dev. No functional changes.

v3:
* rebased

Signed-off-by: Thomas Zimmermann <[email protected]>
Acked-by: Christian König <[email protected]>
Acked-by: Alex Deucher <[email protected]>
Acked-by: Sam Ravnborg <[email protected]>
Cc: Alex Deucher <[email protected]>
Cc: Christian König <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

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drm/amdgpu: Get DRM dev from adev by inline-f

Add a static inline adev_to_drm() to obtain
the DRM device pointer from an amdgpu_device pointer.

Signed-off-by: Luben Tuikov <[email protected]>
Re

drm/amdgpu: Get DRM dev from adev by inline-f

Add a static inline adev_to_drm() to obtain
the DRM device pointer from an amdgpu_device pointer.

Signed-off-by: Luben Tuikov <[email protected]>
Reviewed-by: Alex Deucher <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

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drm/amdgpu: drm_device to amdgpu_device by inline-f (v2)

Get the amdgpu_device from the DRM device by use
of an inline function, drm_to_adev(). The inline
function resolves a pointer to struct drm_d

drm/amdgpu: drm_device to amdgpu_device by inline-f (v2)

Get the amdgpu_device from the DRM device by use
of an inline function, drm_to_adev(). The inline
function resolves a pointer to struct drm_device
to a pointer to struct amdgpu_device.

v2: Use a typed visible static inline function
instead of an invisible macro.

Signed-off-by: Luben Tuikov <[email protected]>
Reviewed-by: Alex Deucher <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

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drm/amd: drop use of drmP.h in amdgpu/amdgpu*

Drop use of drmP.h in all files named amdgpu*
in drm/amd/amdgpu/

Fix fallout.

Signed-off-by: Sam Ravnborg <[email protected]>
Reviewed-by: Alex Deucher

drm/amd: drop use of drmP.h in amdgpu/amdgpu*

Drop use of drmP.h in all files named amdgpu*
in drm/amd/amdgpu/

Fix fallout.

Signed-off-by: Sam Ravnborg <[email protected]>
Reviewed-by: Alex Deucher <[email protected]>
Cc: "Christian König" <[email protected]>
Cc: "David (ChunMing) Zhou" <[email protected]>
Cc: David Airlie <[email protected]>
Cc: Daniel Vetter <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

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drm/amdgpu: Remove checking for atombios

This is a left over from radeon, amdgpu doesn't support any
non-atombios parts and amdgpu_device_init would bail if the
check for atombios failed anyway.

Re

drm/amdgpu: Remove checking for atombios

This is a left over from radeon, amdgpu doesn't support any
non-atombios parts and amdgpu_device_init would bail if the
check for atombios failed anyway.

Reviewed-by: Edward O'Callaghan <[email protected]>
Signed-off-by: Nils Wallménius <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

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drm/amdgpu: warn if dp aux is still attached on free

If this happens (and it recently did), we free a structure while part of
it is still in use, which results in non-obvious crashes. The way it's
d

drm/amdgpu: warn if dp aux is still attached on free

If this happens (and it recently did), we free a structure while part of
it is still in use, which results in non-obvious crashes. The way it's
detached is not trivial (DRM core has to call the connector .destroy
callback and things must be torn down in the right order), so better
detect it and warn early.

Signed-off-by: Grazvydas Ignotas <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

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drm/amdgpu/i2c: add const where appropriate

Signed-off-by: Grazvydas Ignotas <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

gpu: drm: amd: amdgpu: amdgpu_i2c: don't print error when adding adapter fails

The core will do this for us now.

Signed-off-by: Wolfram Sang <[email protected]>
Signed-off-by: Alex Deuch

gpu: drm: amd: amdgpu: amdgpu_i2c: don't print error when adding adapter fails

The core will do this for us now.

Signed-off-by: Wolfram Sang <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

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drm/amdgpu: add core driver (v4)

This adds the non-asic specific core driver code.

v2: remove extra kconfig option
v3: implement minor fixes from Fengguang Wu
v4: fix cast in amdgpu_ucode.c

Acked-

drm/amdgpu: add core driver (v4)

This adds the non-asic specific core driver code.

v2: remove extra kconfig option
v3: implement minor fixes from Fengguang Wu
v4: fix cast in amdgpu_ucode.c

Acked-by: Christian König <[email protected]>
Acked-by: Jammy Zhou <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

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