41  * Between command and response, there are latency byte (up to 15
47  * some latency byte before the answer is available (max 15).
60 	int latency;  member
119 	memset(&phy->tx_buf[total_length], TPM_DUMMY_BYTE, phy->latency);  in st33zp24_spi_send()
121 	spi_xfer.len = total_length + phy->latency;  in st33zp24_spi_send()
125 		ret = phy->rx_buf[total_length + phy->latency - 1];  in st33zp24_spi_send()
155 	       phy->latency + tpm_size);  in st33zp24_spi_read8_reg()
157 	spi_xfer.len = total_length + phy->latency + tpm_size;  in st33zp24_spi_read8_reg()
162 		ret = phy->rx_buf[total_length + phy->latency - 1];  in st33zp24_spi_read8_reg()
164 		memcpy(tpm_data, phy->rx_buf + total_length + phy->latency,  in st33zp24_spi_read8_reg()
194 	int latency = 1, status = 0;  in st33zp24_spi_evaluate_latency()  local
197 	while (!status && latency < MAX_SPI_LATENCY) {  in st33zp24_spi_evaluate_latency()
198 		phy->latency = latency;  in st33zp24_spi_evaluate_latency()
201 		latency++;  in st33zp24_spi_evaluate_latency()
205 	if (latency == MAX_SPI_LATENCY)  in st33zp24_spi_evaluate_latency()
208 	return latency - 1;  in st33zp24_spi_evaluate_latency()
233 	phy->latency = st33zp24_spi_evaluate_latency(phy);  in st33zp24_spi_probe()
234 	if (phy->latency <= 0)  in st33zp24_spi_probe()