static int rsnd_src_init(struct rsnd_mod *mod) { struct rsnd_src *src = rsnd_mod_to_src(mod); rsnd_mod_hw_start(mod); src->err = 0; /* * Initialize the operation of the SRC internal circuits * see rsnd_src_start() */ rsnd_mod_write(mod, SRC_SRCIR, 1); return 0; }
static void rsnd_ssi_hw_start(struct rsnd_ssi *ssi, struct rsnd_dai_stream *io) { struct rsnd_priv *priv = rsnd_io_to_priv(io); struct rsnd_dai *rdai = rsnd_io_to_rdai(io); struct device *dev = rsnd_priv_to_dev(priv); u32 cr_mode; u32 cr; if (0 == ssi->usrcnt) { rsnd_mod_hw_start(&ssi->mod); if (rsnd_rdai_is_clk_master(rdai)) { if (rsnd_ssi_clk_from_parent(ssi)) rsnd_ssi_hw_start(ssi->parent, io); else rsnd_ssi_master_clk_start(ssi, io); } } cr_mode = rsnd_ssi_is_dma_mode(&ssi->mod) ? DMEN : /* DMA : enable DMA */ DIEN; /* PIO : enable Data interrupt */ cr = ssi->cr_own | ssi->cr_clk | cr_mode | UIEN | OIEN | EN; rsnd_mod_write(&ssi->mod, SSICR, cr); /* enable WS continue */ if (rsnd_rdai_is_clk_master(rdai)) rsnd_mod_write(&ssi->mod, SSIWSR, CONT); /* clear error status */ rsnd_mod_write(&ssi->mod, SSISR, 0); ssi->usrcnt++; dev_dbg(dev, "%s[%d] hw started\n", rsnd_mod_name(&ssi->mod), rsnd_mod_id(&ssi->mod)); }