60 	struct axi_i2s *i2s = snd_soc_dai_get_drvdata(dai);  in axi_i2s_trigger()  local
83 	regmap_update_bits(i2s->regmap, AXI_I2S_REG_CTRL, mask, val);  in axi_i2s_trigger()
91 	struct axi_i2s *i2s = snd_soc_dai_get_drvdata(dai);  in axi_i2s_hw_params()  local
98 	bclk_div = DIV_ROUND_UP(clk_get_rate(i2s->clk_ref), bclk_rate) / 2 - 1;  in axi_i2s_hw_params()
100 	regmap_write(i2s->regmap, AXI_I2S_REG_CLK_CTRL, (word_size << 16) |  in axi_i2s_hw_params()
109 	struct axi_i2s *i2s = snd_soc_dai_get_drvdata(dai);  in axi_i2s_startup()  local
118 	regmap_write(i2s->regmap, AXI_I2S_REG_RESET, mask);  in axi_i2s_startup()
122 			   &i2s->rate_constraints);  in axi_i2s_startup()
126 	return clk_prepare_enable(i2s->clk_ref);  in axi_i2s_startup()
132 	struct axi_i2s *i2s = snd_soc_dai_get_drvdata(dai);  in axi_i2s_shutdown()  local
134 	clk_disable_unprepare(i2s->clk_ref);  in axi_i2s_shutdown()
139 	struct axi_i2s *i2s = snd_soc_dai_get_drvdata(dai);  in axi_i2s_dai_probe()  local
143 		i2s->has_playback ? &i2s->playback_dma_data : NULL,  in axi_i2s_dai_probe()
144 		i2s->has_capture  ? &i2s->capture_dma_data  : NULL);  in axi_i2s_dai_probe()
163 	.name = "axi-i2s",
174 static void axi_i2s_parse_of(struct axi_i2s *i2s, const struct device_node *np)  in axi_i2s_parse_of()  argument
181 			i2s->has_capture = true;  in axi_i2s_parse_of()
183 			i2s->has_playback = true;  in axi_i2s_parse_of()
190 	struct axi_i2s *i2s;  in axi_i2s_probe()  local
194 	i2s = devm_kzalloc(&pdev->dev, sizeof(*i2s), GFP_KERNEL);  in axi_i2s_probe()
195 	if (!i2s)  in axi_i2s_probe()
198 	platform_set_drvdata(pdev, i2s);  in axi_i2s_probe()
200 	axi_i2s_parse_of(i2s, pdev->dev.of_node);  in axi_i2s_probe()
206 	i2s->regmap = devm_regmap_init_mmio(&pdev->dev, base,  in axi_i2s_probe()
208 	if (IS_ERR(i2s->regmap))  in axi_i2s_probe()
209 		return PTR_ERR(i2s->regmap);  in axi_i2s_probe()
211 	i2s->clk = devm_clk_get(&pdev->dev, "axi");  in axi_i2s_probe()
212 	if (IS_ERR(i2s->clk))  in axi_i2s_probe()
213 		return PTR_ERR(i2s->clk);  in axi_i2s_probe()
215 	i2s->clk_ref = devm_clk_get(&pdev->dev, "ref");  in axi_i2s_probe()
216 	if (IS_ERR(i2s->clk_ref))  in axi_i2s_probe()
217 		return PTR_ERR(i2s->clk_ref);  in axi_i2s_probe()
219 	ret = clk_prepare_enable(i2s->clk);  in axi_i2s_probe()
223 	if (i2s->has_playback) {  in axi_i2s_probe()
230 		i2s->playback_dma_data.addr = res->start + AXI_I2S_REG_TX_FIFO;  in axi_i2s_probe()
231 		i2s->playback_dma_data.addr_width = 4;  in axi_i2s_probe()
232 		i2s->playback_dma_data.maxburst = 1;  in axi_i2s_probe()
235 	if (i2s->has_capture) {  in axi_i2s_probe()
242 		i2s->capture_dma_data.addr = res->start + AXI_I2S_REG_RX_FIFO;  in axi_i2s_probe()
243 		i2s->capture_dma_data.addr_width = 4;  in axi_i2s_probe()
244 		i2s->capture_dma_data.maxburst = 1;  in axi_i2s_probe()
247 	i2s->ratnum.num = clk_get_rate(i2s->clk_ref) / 2 / AXI_I2S_BITS_PER_FRAME;  in axi_i2s_probe()
248 	i2s->ratnum.den_step = 1;  in axi_i2s_probe()
249 	i2s->ratnum.den_min = 1;  in axi_i2s_probe()
250 	i2s->ratnum.den_max = 64;  in axi_i2s_probe()
252 	i2s->rate_constraints.rats = &i2s->ratnum;  in axi_i2s_probe()
253 	i2s->rate_constraints.nrats = 1;  in axi_i2s_probe()
255 	regmap_write(i2s->regmap, AXI_I2S_REG_RESET, AXI_I2S_RESET_GLOBAL);  in axi_i2s_probe()
267 		 i2s->has_capture ? "enabled" : "disabled",  in axi_i2s_probe()
268 		 i2s->has_playback ? "enabled" : "disabled");  in axi_i2s_probe()
273 	clk_disable_unprepare(i2s->clk);  in axi_i2s_probe()
279 	struct axi_i2s *i2s = platform_get_drvdata(pdev);  in axi_i2s_dev_remove()  local
281 	clk_disable_unprepare(i2s->clk);  in axi_i2s_dev_remove()
285 	{ .compatible = "adi,axi-i2s-1.00.a", },
292 		.name = "axi-i2s",
301 MODULE_DESCRIPTION("AXI I2S driver");