diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/irq')
4 files changed, 32 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/irq/dcn21/irq_service_dcn21.c b/drivers/gpu/drm/amd/display/dc/irq/dcn21/irq_service_dcn21.c index ed54e1c819be..685528734575 100644 --- a/drivers/gpu/drm/amd/display/dc/irq/dcn21/irq_service_dcn21.c +++ b/drivers/gpu/drm/amd/display/dc/irq/dcn21/irq_service_dcn21.c @@ -135,6 +135,31 @@ enum dc_irq_source to_dal_irq_source_dcn21( return DC_IRQ_SOURCE_INVALID; } +uint32_t dal_get_hpd_state_dcn21(struct irq_service *irq_service, enum dc_irq_source source) +{ + const struct irq_source_info *info; + uint32_t addr; + uint32_t value; + uint32_t current_status; + + info = find_irq_source_info(irq_service, source); + if (!info) + return 0; + + addr = info->status_reg; + if (!addr) + return 0; + + value = dm_read_reg(irq_service->ctx, addr); + current_status = + get_reg_field_value( + value, + HPD0_DC_HPD_INT_STATUS, + DC_HPD_SENSE); + + return current_status; +} + static bool hpd_ack( struct irq_service *irq_service, const struct irq_source_info *info) diff --git a/drivers/gpu/drm/amd/display/dc/irq/dcn21/irq_service_dcn21.h b/drivers/gpu/drm/amd/display/dc/irq/dcn21/irq_service_dcn21.h index da2bd0e93d7a..3df2ceeb2b70 100644 --- a/drivers/gpu/drm/amd/display/dc/irq/dcn21/irq_service_dcn21.h +++ b/drivers/gpu/drm/amd/display/dc/irq/dcn21/irq_service_dcn21.h @@ -31,4 +31,6 @@ struct irq_service *dal_irq_service_dcn21_create( struct irq_service_init_data *init_data); +uint32_t dal_get_hpd_state_dcn21(struct irq_service *irq_service, enum dc_irq_source source); + #endif diff --git a/drivers/gpu/drm/amd/display/dc/irq/irq_service.c b/drivers/gpu/drm/amd/display/dc/irq/irq_service.c index a2a4fbeb83f8..4db1133e4466 100644 --- a/drivers/gpu/drm/amd/display/dc/irq/irq_service.c +++ b/drivers/gpu/drm/amd/display/dc/irq/irq_service.c @@ -79,7 +79,7 @@ void dal_irq_service_destroy(struct irq_service **irq_service) *irq_service = NULL; } -static const struct irq_source_info *find_irq_source_info( +const struct irq_source_info *find_irq_source_info( struct irq_service *irq_service, enum dc_irq_source source) { diff --git a/drivers/gpu/drm/amd/display/dc/irq/irq_service.h b/drivers/gpu/drm/amd/display/dc/irq/irq_service.h index dbfcb096eedd..e60b82480093 100644 --- a/drivers/gpu/drm/amd/display/dc/irq/irq_service.h +++ b/drivers/gpu/drm/amd/display/dc/irq/irq_service.h @@ -69,6 +69,10 @@ struct irq_service { const struct irq_service_funcs *funcs; }; +const struct irq_source_info *find_irq_source_info( + struct irq_service *irq_service, + enum dc_irq_source source); + void dal_irq_service_construct( struct irq_service *irq_service, struct irq_service_init_data *init_data); |