soc/tegra/tegra_isomgr_bw.c

5 // ADMA bandwidth calculation
25 	u32 type = substream->stream, bandwidth = 0;  in tegra_isomgr_adma_setbw()  local
41 	 * No action if  stream is running and bandwidth is already set or  in tegra_isomgr_adma_setbw()
42 	 * stream is not running and bandwidth is already reset  in tegra_isomgr_adma_setbw()
54 		bandwidth = runtime->channels * (runtime->rate / 1000) *  in tegra_isomgr_adma_setbw()
61 		if (bandwidth + adma_isomgr->current_bandwidth > adma_isomgr->max_bw)  in tegra_isomgr_adma_setbw()
62 			bandwidth = adma_isomgr->max_bw - adma_isomgr->current_bandwidth;  in tegra_isomgr_adma_setbw()
64 		adma_isomgr->current_bandwidth += bandwidth;  in tegra_isomgr_adma_setbw()
71 	adma_isomgr->bw_per_dev[type][pcm->device] = bandwidth;  in tegra_isomgr_adma_setbw()
73 	dev_dbg(dev, "Setting up bandwidth to %d KBps\n", adma_isomgr->current_bandwidth);  in tegra_isomgr_adma_setbw()
128 MODULE_DESCRIPTION("Tegra ADMA Bandwidth Request driver");