45  * Between command and response, there are latency byte (up to 15
51  * some latency byte before the answer is available (max 15).
65 	int latency;  member
124 	memset(&phy->tx_buf[total_length], TPM_DUMMY_BYTE, phy->latency);  in st33zp24_spi_send()
126 	spi_xfer.len = total_length + phy->latency;  in st33zp24_spi_send()
130 		ret = phy->rx_buf[total_length + phy->latency - 1];  in st33zp24_spi_send()
160 	       phy->latency + tpm_size);  in st33zp24_spi_read8_reg()
162 	spi_xfer.len = total_length + phy->latency + tpm_size;  in st33zp24_spi_read8_reg()
167 		ret = phy->rx_buf[total_length + phy->latency - 1];  in st33zp24_spi_read8_reg()
169 		memcpy(tpm_data, phy->rx_buf + total_length + phy->latency,  in st33zp24_spi_read8_reg()
199 	int latency = 1, status = 0;  in st33zp24_spi_evaluate_latency()  local
202 	while (!status && latency < MAX_SPI_LATENCY) {  in st33zp24_spi_evaluate_latency()
203 		phy->latency = latency;  in st33zp24_spi_evaluate_latency()
206 		latency++;  in st33zp24_spi_evaluate_latency()
210 	if (latency == MAX_SPI_LATENCY)  in st33zp24_spi_evaluate_latency()
213 	return latency - 1;  in st33zp24_spi_evaluate_latency()
371 	phy->latency = st33zp24_spi_evaluate_latency(phy);  in st33zp24_spi_probe()
372 	if (phy->latency <= 0)  in st33zp24_spi_probe()