diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c b/drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c index 818536eea00a..0b86cee4876f 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c @@ -23,6 +23,9 @@ * */ +#include <linux/delay.h> +#include <linux/slab.h> + #include "core_types.h" #include "link_encoder.h" #include "dce_dmcu.h" @@ -388,6 +391,9 @@ static bool dcn10_dmcu_init(struct dmcu *dmcu) /* Set initialized ramping boundary value */ REG_WRITE(MASTER_COMM_DATA_REG1, 0xFFFF); + /* Set backlight ramping stepsize */ + REG_WRITE(MASTER_COMM_DATA_REG2, abm_gain_stepsize); + /* Set command to initialize microcontroller */ REG_UPDATE(MASTER_COMM_CMD_REG, MASTER_COMM_CMD_REG_BYTE0, MCP_INIT_DMCU); @@ -723,6 +729,56 @@ static bool dcn10_is_dmcu_initialized(struct dmcu *dmcu) #endif //(CONFIG_DRM_AMD_DC_DCN1_0) +#if defined(CONFIG_DRM_AMD_DC_DCN2_0) + +static bool dcn20_lock_phy(struct dmcu *dmcu) +{ + struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(dmcu); + + /* If microcontroller is not running, do nothing */ + if (dmcu->dmcu_state != DMCU_RUNNING) + return false; + + /* waitDMCUReadyForCmd */ + REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0, 1, 10000); + + /* setDMCUParam_Cmd */ + REG_UPDATE(MASTER_COMM_CMD_REG, MASTER_COMM_CMD_REG_BYTE0, MCP_SYNC_PHY_LOCK); + + /* notifyDMCUMsg */ + REG_UPDATE(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 1); + + /* waitDMCUReadyForCmd */ + REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0, 1, 10000); + + return true; +} + +static bool dcn20_unlock_phy(struct dmcu *dmcu) +{ + struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(dmcu); + + /* If microcontroller is not running, do nothing */ + if (dmcu->dmcu_state != DMCU_RUNNING) + return false; + + /* waitDMCUReadyForCmd */ + REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0, 1, 10000); + + /* setDMCUParam_Cmd */ + REG_UPDATE(MASTER_COMM_CMD_REG, MASTER_COMM_CMD_REG_BYTE0, MCP_SYNC_PHY_UNLOCK); + + /* notifyDMCUMsg */ + REG_UPDATE(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 1); + + /* waitDMCUReadyForCmd */ + REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0, 1, 10000); + + return true; +} + +#endif //(CONFIG_DRM_AMD_DC_DCN2_0) + static const struct dmcu_funcs dce_funcs = { .dmcu_init = dce_dmcu_init, .load_iram = dce_dmcu_load_iram, @@ -747,6 +803,21 @@ static const struct dmcu_funcs dcn10_funcs = { }; #endif +#if defined(CONFIG_DRM_AMD_DC_DCN2_0) +static const struct dmcu_funcs dcn20_funcs = { + .dmcu_init = dcn10_dmcu_init, + .load_iram = dcn10_dmcu_load_iram, + .set_psr_enable = dcn10_dmcu_set_psr_enable, + .setup_psr = dcn10_dmcu_setup_psr, + .get_psr_state = dcn10_get_dmcu_psr_state, + .set_psr_wait_loop = dcn10_psr_wait_loop, + .get_psr_wait_loop = dcn10_get_psr_wait_loop, + .is_dmcu_initialized = dcn10_is_dmcu_initialized, + .lock_phy = dcn20_lock_phy, + .unlock_phy = dcn20_unlock_phy +}; +#endif + static void dce_dmcu_construct( struct dce_dmcu *dmcu_dce, struct dc_context *ctx, @@ -809,10 +880,36 @@ struct dmcu *dcn10_dmcu_create( } #endif +#if defined(CONFIG_DRM_AMD_DC_DCN2_0) +struct dmcu *dcn20_dmcu_create( + struct dc_context *ctx, + const struct dce_dmcu_registers *regs, + const struct dce_dmcu_shift *dmcu_shift, + const struct dce_dmcu_mask *dmcu_mask) +{ + struct dce_dmcu *dmcu_dce = kzalloc(sizeof(*dmcu_dce), GFP_KERNEL); + + if (dmcu_dce == NULL) { + BREAK_TO_DEBUGGER(); + return NULL; + } + + dce_dmcu_construct( + dmcu_dce, ctx, regs, dmcu_shift, dmcu_mask); + + dmcu_dce->base.funcs = &dcn20_funcs; + + return &dmcu_dce->base; +} +#endif + void dce_dmcu_destroy(struct dmcu **dmcu) { struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(*dmcu); + if (dmcu_dce->base.dmcu_state == DMCU_RUNNING) + dmcu_dce->base.funcs->set_psr_enable(*dmcu, false, true); + kfree(dmcu_dce); *dmcu = NULL; } |