Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
drm/amd/display/dc: enable oem i2c support for DCE 12.x
Use the value pulled from the vbios just like newer chips.
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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drivers/gpu/drm/amd/display/dc/resource/dce120/dce120_resource.c
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drivers/gpu/drm/amd/display/dc/resource/dce120/dce120_resource.c
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#include "reg_helper.h"
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#include "dce100/dce100_resource.h"
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#include "link.h"
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#ifndef mmDP0_DP_DPHY_INTERNAL_CTRL
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#define mmDP0_DP_DPHY_INTERNAL_CTRL 0x210f
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if (pool->base.dmcu != NULL)
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dce_dmcu_destroy(&pool->base.dmcu);
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if (pool->base.oem_device != NULL) {
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struct dc *dc = pool->base.oem_device->ctx->dc;
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dc->link_srv->destroy_ddc_service(&pool->base.oem_device);
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}
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}
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static void read_dce_straps(
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struct dc *dc,
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struct dce110_resource_pool *pool)
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{
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struct ddc_service_init_data ddc_init_data = {0};
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unsigned int i;
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int j;
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struct dc_context *ctx = dc->ctx;
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bw_calcs_init(dc->bw_dceip, dc->bw_vbios, dc->ctx->asic_id);
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bw_calcs_data_update_from_pplib(dc);
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if (dc->ctx->dc_bios->fw_info.oem_i2c_present) {
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ddc_init_data.ctx = dc->ctx;
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ddc_init_data.link = NULL;
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ddc_init_data.id.id = dc->ctx->dc_bios->fw_info.oem_i2c_obj_id;
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ddc_init_data.id.enum_id = 0;
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ddc_init_data.id.type = OBJECT_TYPE_GENERIC;
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pool->base.oem_device = dc->link_srv->create_ddc_service(&ddc_init_data);
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}
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return true;
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