110 	struct rockchip_i2s_pwm_chip *pc = to_rockchip_i2s_pwm_chip(chip);  in rockchip_i2s_pwm_get_state()  local
114 	ret = clk_enable(pc->hclk);  in rockchip_i2s_pwm_get_state()
118 	memcpy(state, &pc->pwm_state, sizeof(struct pwm_state));  in rockchip_i2s_pwm_get_state()
120 	ctrl = readl_relaxed(pc->base + I2S_XFER);  in rockchip_i2s_pwm_get_state()
126 	clk_disable(pc->hclk);  in rockchip_i2s_pwm_get_state()
133 	struct rockchip_i2s_pwm_chip *pc = to_rockchip_i2s_pwm_chip(chip);  in rockchip_i2s_pwm_config()  local
140 	ret = clk_enable(pc->hclk);  in rockchip_i2s_pwm_config()
147 	mclk_rate = clk_get_rate(pc->mclk);  in rockchip_i2s_pwm_config()
167 	div_val = readl_relaxed(pc->base + pc->data->reg_clkdiv);  in rockchip_i2s_pwm_config()
168 	div_val &= ~pc->data->mask_clkdiv;  in rockchip_i2s_pwm_config()
169 	writel_relaxed((I2S_CLKDIV_TXM(div_bclk) << pc->data->bit_clkdiv)  in rockchip_i2s_pwm_config()
170 		       | div_val, pc->base + pc->data->reg_clkdiv);  in rockchip_i2s_pwm_config()
173 		memcpy((u64 *)pc->dma.tx_buff + i, &duty, sizeof(u64));  in rockchip_i2s_pwm_config()
175 	pc->pwm_state.period = state->period;  in rockchip_i2s_pwm_config()
176 	pc->pwm_state.duty_cycle = state->duty_cycle;  in rockchip_i2s_pwm_config()
177 	pc->pwm_state.polarity = state->polarity;  in rockchip_i2s_pwm_config()
180 	clk_disable(pc->hclk);  in rockchip_i2s_pwm_config()
189 	struct rockchip_i2s_pwm_chip *pc = to_rockchip_i2s_pwm_chip(chip);  in rockchip_i2s_pwm_enable()  local
190 	struct rockchip_i2s_pwm_dma *dma = &pc->dma;  in rockchip_i2s_pwm_enable()
196 		ret = clk_enable(pc->hclk);  in rockchip_i2s_pwm_enable()
200 		ret = clk_enable(pc->mclk);  in rockchip_i2s_pwm_enable()
224 		dma_async_issue_pending(pc->dma.chan_tx);  in rockchip_i2s_pwm_enable()
226 		val = readl_relaxed(pc->base + I2S_DMACR);  in rockchip_i2s_pwm_enable()
229 			       pc->base + I2S_DMACR);  in rockchip_i2s_pwm_enable()
231 		val = readl_relaxed(pc->base + I2S_XFER);  in rockchip_i2s_pwm_enable()
233 		writel_relaxed(val | I2S_XFER_TXS_START, pc->base + I2S_XFER);  in rockchip_i2s_pwm_enable()
235 		dmaengine_terminate_all(pc->dma.chan_tx);  in rockchip_i2s_pwm_enable()
237 		val = readl_relaxed(pc->base + I2S_DMACR);  in rockchip_i2s_pwm_enable()
240 			       pc->base + I2S_DMACR);  in rockchip_i2s_pwm_enable()
242 		val = readl_relaxed(pc->base + I2S_XFER);  in rockchip_i2s_pwm_enable()
244 		writel_relaxed(val | I2S_XFER_TXS_STOP, pc->base + I2S_XFER);  in rockchip_i2s_pwm_enable()
248 		val = readl_relaxed(pc->base + I2S_CLR);  in rockchip_i2s_pwm_enable()
250 		writel_relaxed(val | I2S_CLR_TXC, pc->base + I2S_CLR);  in rockchip_i2s_pwm_enable()
254 			val = readl_relaxed(pc->base + I2S_CLR);  in rockchip_i2s_pwm_enable()
262 		clk_disable(pc->mclk);  in rockchip_i2s_pwm_enable()
263 		clk_disable(pc->hclk);  in rockchip_i2s_pwm_enable()
269 	clk_disable(pc->mclk);  in rockchip_i2s_pwm_enable()
271 	clk_disable(pc->hclk);  in rockchip_i2s_pwm_enable()
307 static int rockchip_i2s_pwm_dma_request(struct rockchip_i2s_pwm_chip *pc,  in rockchip_i2s_pwm_dma_request()  argument
311 	struct rockchip_i2s_pwm_dma *dma = &pc->dma;  in rockchip_i2s_pwm_dma_request()
347 static void rockchip_i2s_pwm_dma_release(struct rockchip_i2s_pwm_chip *pc)  in rockchip_i2s_pwm_dma_release()  argument
349 	struct rockchip_i2s_pwm_dma *dma = &pc->dma;  in rockchip_i2s_pwm_dma_release()
350 	struct device *dev = pc->chip.dev;  in rockchip_i2s_pwm_dma_release()
356 static int rockchip_i2s_pwm_hw_params(struct rockchip_i2s_pwm_chip *pc)  in rockchip_i2s_pwm_hw_params()  argument
361 	ret = clk_enable(pc->hclk);  in rockchip_i2s_pwm_hw_params()
366 	val = readl_relaxed(pc->base + I2S_TXCR);  in rockchip_i2s_pwm_hw_params()
369 		       | I2S_TXCR_FBM_LSB, pc->base + I2S_TXCR);  in rockchip_i2s_pwm_hw_params()
371 	val = readl_relaxed(pc->base + I2S_CKR);  in rockchip_i2s_pwm_hw_params()
373 	writel_relaxed(val | I2S_CKR_TSD(I2S_FRAME_BITS), pc->base + I2S_CKR);  in rockchip_i2s_pwm_hw_params()
376 	val = readl_relaxed(pc->base + I2S_DMACR);  in rockchip_i2s_pwm_hw_params()
379 		       pc->base + I2S_DMACR);  in rockchip_i2s_pwm_hw_params()
381 	clk_disable(pc->hclk);  in rockchip_i2s_pwm_hw_params()
405 	struct rockchip_i2s_pwm_chip *pc;  in rockchip_i2s_pwm_probe()  local
414 	pc = devm_kzalloc(&pdev->dev, sizeof(*pc), GFP_KERNEL);  in rockchip_i2s_pwm_probe()
415 	if (!pc)  in rockchip_i2s_pwm_probe()
419 	pc->base = devm_ioremap_resource(&pdev->dev, res);  in rockchip_i2s_pwm_probe()
420 	if (IS_ERR(pc->base))  in rockchip_i2s_pwm_probe()
421 		return PTR_ERR(pc->base);  in rockchip_i2s_pwm_probe()
423 	pc->hclk = devm_clk_get(&pdev->dev, "hclk");  in rockchip_i2s_pwm_probe()
424 	if (IS_ERR(pc->hclk))  in rockchip_i2s_pwm_probe()
425 		return PTR_ERR(pc->hclk);  in rockchip_i2s_pwm_probe()
427 	pc->mclk = devm_clk_get(&pdev->dev, "mclk");  in rockchip_i2s_pwm_probe()
428 	if (IS_ERR(pc->mclk))  in rockchip_i2s_pwm_probe()
429 		return PTR_ERR(pc->mclk);  in rockchip_i2s_pwm_probe()
431 	ret = clk_prepare(pc->hclk);  in rockchip_i2s_pwm_probe()
435 	ret = clk_prepare(pc->mclk);  in rockchip_i2s_pwm_probe()
439 	pc->chip.dev = &pdev->dev;  in rockchip_i2s_pwm_probe()
440 	platform_set_drvdata(pdev, pc);  in rockchip_i2s_pwm_probe()
442 	ret = rockchip_i2s_pwm_hw_params(pc);  in rockchip_i2s_pwm_probe()
446 	ret = rockchip_i2s_pwm_dma_request(pc, &pdev->dev,  in rockchip_i2s_pwm_probe()
453 	pc->data = id->data;  in rockchip_i2s_pwm_probe()
454 	pc->chip.ops = &rockchip_i2s_pwm_ops;  in rockchip_i2s_pwm_probe()
455 	pc->chip.base = -1;  in rockchip_i2s_pwm_probe()
456 	pc->chip.npwm = 1;  in rockchip_i2s_pwm_probe()
457 	pc->chip.of_xlate = of_pwm_xlate_with_flags;  in rockchip_i2s_pwm_probe()
458 	pc->chip.of_pwm_n_cells = 3;  in rockchip_i2s_pwm_probe()
460 	ret = pwmchip_add(&pc->chip);  in rockchip_i2s_pwm_probe()
463 		rockchip_i2s_pwm_dma_release(pc);  in rockchip_i2s_pwm_probe()
470 	clk_unprepare(pc->mclk);  in rockchip_i2s_pwm_probe()
472 	clk_unprepare(pc->hclk);  in rockchip_i2s_pwm_probe()
479 	struct rockchip_i2s_pwm_chip *pc = platform_get_drvdata(pdev);  in rockchip_i2s_pwm_remove()  local
482 	pwm_get_state(pc->chip.pwms, &curstate);  in rockchip_i2s_pwm_remove()
484 		dmaengine_terminate_all(pc->dma.chan_tx);  in rockchip_i2s_pwm_remove()
486 	rockchip_i2s_pwm_dma_release(pc);  in rockchip_i2s_pwm_remove()
488 	clk_unprepare(pc->mclk);  in rockchip_i2s_pwm_remove()
489 	clk_unprepare(pc->hclk);  in rockchip_i2s_pwm_remove()
491 	return pwmchip_remove(&pc->chip);  in rockchip_i2s_pwm_remove()