diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dce/dce_aux.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce/dce_aux.c | 46 |
1 files changed, 37 insertions, 9 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c b/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c index 793c0cec407f..f1a5d2c6aa37 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c @@ -60,12 +60,14 @@ enum { AUX_DEFER_RETRY_COUNTER = 6 }; -#define TIME_OUT_INCREMENT 1016 -#define TIME_OUT_MULTIPLIER_8 8 -#define TIME_OUT_MULTIPLIER_16 16 -#define TIME_OUT_MULTIPLIER_32 32 -#define TIME_OUT_MULTIPLIER_64 64 -#define MAX_TIMEOUT_LENGTH 127 +#define TIME_OUT_INCREMENT 1016 +#define TIME_OUT_MULTIPLIER_8 8 +#define TIME_OUT_MULTIPLIER_16 16 +#define TIME_OUT_MULTIPLIER_32 32 +#define TIME_OUT_MULTIPLIER_64 64 +#define MAX_TIMEOUT_LENGTH 127 +#define DEFAULT_AUX_ENGINE_MULT 0 +#define DEFAULT_AUX_ENGINE_LENGTH 69 static void release_engine( struct dce_aux *engine) @@ -427,11 +429,14 @@ void dce110_engine_destroy(struct dce_aux **engine) } -static bool dce_aux_configure_timeout(struct ddc_service *ddc, +static uint32_t dce_aux_configure_timeout(struct ddc_service *ddc, uint32_t timeout_in_us) { uint32_t multiplier = 0; uint32_t length = 0; + uint32_t prev_length = 0; + uint32_t prev_mult = 0; + uint32_t prev_timeout_val = 0; struct ddc *ddc_pin = ddc->ddc_pin; struct dce_aux *aux_engine = ddc->ctx->dc->res_pool->engines[ddc_pin->pin_data->en]; struct aux_engine_dce110 *aux110 = FROM_AUX_ENGINE(aux_engine); @@ -440,7 +445,10 @@ static bool dce_aux_configure_timeout(struct ddc_service *ddc, aux110->polling_timeout_period = timeout_in_us * SW_AUX_TIMEOUT_PERIOD_MULTIPLIER; /* 2-Update aux timeout period length and multiplier */ - if (timeout_in_us <= TIME_OUT_INCREMENT) { + if (timeout_in_us == 0) { + multiplier = DEFAULT_AUX_ENGINE_MULT; + length = DEFAULT_AUX_ENGINE_LENGTH; + } else if (timeout_in_us <= TIME_OUT_INCREMENT) { multiplier = 0; length = timeout_in_us/TIME_OUT_MULTIPLIER_8; if (timeout_in_us % TIME_OUT_MULTIPLIER_8 != 0) @@ -464,9 +472,29 @@ static bool dce_aux_configure_timeout(struct ddc_service *ddc, length = (length < MAX_TIMEOUT_LENGTH) ? length : MAX_TIMEOUT_LENGTH; + REG_GET_2(AUX_DPHY_RX_CONTROL1, AUX_RX_TIMEOUT_LEN, &prev_length, AUX_RX_TIMEOUT_LEN_MUL, &prev_mult); + + switch (prev_mult) { + case 0: + prev_timeout_val = prev_length * TIME_OUT_MULTIPLIER_8; + break; + case 1: + prev_timeout_val = prev_length * TIME_OUT_MULTIPLIER_16; + break; + case 2: + prev_timeout_val = prev_length * TIME_OUT_MULTIPLIER_32; + break; + case 3: + prev_timeout_val = prev_length * TIME_OUT_MULTIPLIER_64; + break; + default: + prev_timeout_val = DEFAULT_AUX_ENGINE_LENGTH * TIME_OUT_MULTIPLIER_8; + break; + } + REG_UPDATE_SEQ_2(AUX_DPHY_RX_CONTROL1, AUX_RX_TIMEOUT_LEN, length, AUX_RX_TIMEOUT_LEN_MUL, multiplier); - return true; + return prev_timeout_val; } static struct dce_aux_funcs aux_functions = { |