- /* possibly use the hw based chip select */
- tspi->is_hw_based_cs = false;
- if (cdata && cdata->is_hw_based_cs && is_single_xfer &&
- ((tspi->curr_dma_words * tspi->bytes_per_word) ==
- (t->len - tspi->cur_pos))) {
- int setup_count;
- int sts2;
-
- setup_count = cdata->cs_setup_clk_count >> 1;
- setup_count = max(setup_count, 3);
- command2 |= SLINK_SS_SETUP(setup_count);
- if (tspi->chip_data->cs_hold_time) {
- int hold_count;
-
- hold_count = cdata->cs_hold_clk_count;
- hold_count = max(hold_count, 0xF);
- sts2 = tegra_slink_readl(tspi, SLINK_STATUS2);
- sts2 &= ~SLINK_SS_HOLD_TIME(0xF);
- sts2 |= SLINK_SS_HOLD_TIME(hold_count);
- tegra_slink_writel(tspi, sts2, SLINK_STATUS2);
- }
- tspi->is_hw_based_cs = true;
- }
-
- if (tspi->is_hw_based_cs)
- command &= ~SLINK_CS_SW;
- else
- command |= SLINK_CS_SW | SLINK_CS_VALUE;
-