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ISP mfd child devices are using genpd and the system suspend-resume
operations between genpd and amdgpu parent device which uses only
runtime suspend-resume are not in sync.
Linux power manager during suspend-resume resuming the genpd devices
earlier than the amdgpu parent device. This is resulting in the below
warning as SMU is in suspended state when genpd attempts to resume ISP.
WARNING: CPU: 13 PID: 5435 at drivers/gpu/drm/amd/amdgpu/../pm/swsmu/amdgpu_smu.c:398 smu_dpm_set_power_gate+0x36f/0x380 [amdgpu]
To fix this warning isp suspend-resume is handled as part of amdgpu
parent device suspend-resume instead of genpd sequence. Each ISP MFD
child device is marked as dev_pm_syscore_device to skip genpd
suspend-resume and use pm_runtime_force api's to suspend-resume
the devices when callbacks from amdgpu are received.
Co-developed-by: Gjorgji Rosikopulos <grosikop@amd.com>
Signed-off-by: Gjorgji Rosikopulos <grosikop@amd.com>
Signed-off-by: Bin Du <bin.du@amd.com>
Signed-off-by: Pratap Nirujogi <pratap.nirujogi@amd.com>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 0288a345f19b2162546352161509bb24614729e1)
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Accessing amdgpu internal data structures "struct amdgpu_device"
and "struct amdgpu_bo" in ISP V4L2 driver to alloc/free GART
buffers is not recommended.
Add new amdgpu_isp helper functions that takes opaque params
from ISP V4L2 driver and calls the amdgpu internal functions
amdgpu_bo_create_isp_user() and amdgpu_bo_create_kernel() to
alloc/free GART buffers.
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Pratap Nirujogi <pratap.nirujogi@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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AMDISP I2C device requires to power on ISP HW to probe the sensor
device. Instead of using the exported symbols from ISP driver to
control the power and clocks remotely,added Generic PM Domain (genpd)
support in amdgpu_isp device for its child devices (amd_isp_capture,
amd_isp_i2c_designware) to set power and clocks using PM methods.
Co-developed-by: Bin Du <bin.du@amd.com>
Signed-off-by: Bin Du <bin.du@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Pratap Nirujogi <pratap.nirujogi@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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AMDISP GPIO control uses a dedicated pinctrl driver,
and requires MFD hotadd GPIO resources.
Co-developed-by: Pratap Nirujogi <pratap.nirujogi@amd.com>
Signed-off-by: Benjamin Chan <benjamin.chan@amd.com>
Signed-off-by: Pratap Nirujogi <pratap.nirujogi@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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ISP I2C bus device can't be enumerated via ACPI mechanism
since it shares the memory map with the AMDGPU.
So use the MFD mechanism for registering the ISP I2C device
and add the required resources.
Signed-off-by: Venkata Narendra Kumar Gutta <vengutta@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Add independent IP centric modules for ISP4.1.0 and ISP4.1.1 hw blocks.
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Pratap Nirujogi <pratap.nirujogi@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Map ISP IH interrupts to Linux generic IRQ for ISP driver to
handle the interrupts using MFD IORESOURCE_IRQ resource.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Pratap Nirujogi <pratap.nirujogi@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Add the isp driver in amdgpu to support ISP device on the APUs that
supports ISP IP block. ISP hw block is used for camera front-end, pre
and post processing operations.
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Pratap Nirujogi <pratap.nirujogi@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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