39 static void rockchip_audio_spk_ctl(struct rk_audio_pwm_dev *apwm, int on)  in rockchip_audio_spk_ctl()  argument
41 	if (apwm->spk_ctl_gpio)  in rockchip_audio_spk_ctl()
42 		gpiod_direction_output(apwm->spk_ctl_gpio, on);  in rockchip_audio_spk_ctl()
45 static void rockchip_audio_pwm_xfer(struct rk_audio_pwm_dev *apwm, int on)  in rockchip_audio_pwm_xfer()  argument
48 		regmap_write(apwm->regmap, AUDPWM_FIFO_CFG, AUDPWM_DMA_EN);  in rockchip_audio_pwm_xfer()
49 		regmap_write(apwm->regmap, AUDPWM_XFER, AUDPWM_XFER_START);  in rockchip_audio_pwm_xfer()
50 		rockchip_audio_spk_ctl(apwm, on);  in rockchip_audio_pwm_xfer()
52 		rockchip_audio_spk_ctl(apwm, on);  in rockchip_audio_pwm_xfer()
53 		regmap_write(apwm->regmap, AUDPWM_FIFO_CFG, AUDPWM_DMA_DIS);  in rockchip_audio_pwm_xfer()
54 		regmap_write(apwm->regmap, AUDPWM_XFER, AUDPWM_XFER_STOP);  in rockchip_audio_pwm_xfer()
62 	struct rk_audio_pwm_dev *apwm = to_info(dai);  in rockchip_audio_pwm_hw_params()  local
66 	rate = params_rate(params) << apwm->sample_width_bits;  in rockchip_audio_pwm_hw_params()
67 	if (apwm->interpolat_points) {  in rockchip_audio_pwm_hw_params()
68 		rate *= (apwm->interpolat_points + 1);  in rockchip_audio_pwm_hw_params()
69 		regmap_write(apwm->regmap, AUDPWM_PWM_CFG,  in rockchip_audio_pwm_hw_params()
71 			     AUDPWM_INTERP_RATE(apwm->interpolat_points));  in rockchip_audio_pwm_hw_params()
75 	ret = clk_set_rate(apwm->clk, rate);  in rockchip_audio_pwm_hw_params()
79 	regmap_write(apwm->regmap, AUDPWM_SRC_CFG,  in rockchip_audio_pwm_hw_params()
81 	regmap_write(apwm->regmap, AUDPWM_PWM_CFG,  in rockchip_audio_pwm_hw_params()
82 		     AUDPWM_SAMPLE_WIDTH(apwm->sample_width_bits));  in rockchip_audio_pwm_hw_params()
83 	regmap_write(apwm->regmap, AUDPWM_FIFO_CFG,  in rockchip_audio_pwm_hw_params()
92 	struct rk_audio_pwm_dev *apwm = to_info(dai);  in rockchip_audio_pwm_trigger()  local
100 			rockchip_audio_pwm_xfer(apwm, 1);  in rockchip_audio_pwm_trigger()
106 			rockchip_audio_pwm_xfer(apwm, 0);  in rockchip_audio_pwm_trigger()
118 	struct rk_audio_pwm_dev *apwm = to_info(dai);  in rockchip_audio_pwm_dai_probe()  local
120 	dai->playback_dma_data = &apwm->playback_dma_data;  in rockchip_audio_pwm_dai_probe()
153 	struct rk_audio_pwm_dev *apwm = dev_get_drvdata(dev);  in rockchip_audio_pwm_runtime_suspend()  local
155 	regcache_cache_only(apwm->regmap, true);  in rockchip_audio_pwm_runtime_suspend()
156 	clk_disable_unprepare(apwm->clk);  in rockchip_audio_pwm_runtime_suspend()
157 	clk_disable_unprepare(apwm->hclk);  in rockchip_audio_pwm_runtime_suspend()
164 	struct rk_audio_pwm_dev *apwm = dev_get_drvdata(dev);  in rockchip_audio_pwm_runtime_resume()  local
167 	ret = clk_prepare_enable(apwm->clk);  in rockchip_audio_pwm_runtime_resume()
171 	ret = clk_prepare_enable(apwm->hclk);  in rockchip_audio_pwm_runtime_resume()
175 	regcache_cache_only(apwm->regmap, false);  in rockchip_audio_pwm_runtime_resume()
176 	regcache_mark_dirty(apwm->regmap);  in rockchip_audio_pwm_runtime_resume()
177 	ret = regcache_sync(apwm->regmap);  in rockchip_audio_pwm_runtime_resume()
179 		clk_disable_unprepare(apwm->clk);  in rockchip_audio_pwm_runtime_resume()
180 		clk_disable_unprepare(apwm->hclk);  in rockchip_audio_pwm_runtime_resume()
258 	struct rk_audio_pwm_dev *apwm;  in rockchip_audio_pwm_probe()  local
264 	apwm = devm_kzalloc(&pdev->dev, sizeof(*apwm), GFP_KERNEL);  in rockchip_audio_pwm_probe()
265 	if (!apwm)  in rockchip_audio_pwm_probe()
273 	apwm->regmap = devm_regmap_init_mmio(&pdev->dev, regs,  in rockchip_audio_pwm_probe()
275 	if (IS_ERR(apwm->regmap))  in rockchip_audio_pwm_probe()
276 		return PTR_ERR(apwm->regmap);  in rockchip_audio_pwm_probe()
278 	apwm->playback_dma_data.addr = res->start + AUDPWM_FIFO_ENTRY;  in rockchip_audio_pwm_probe()
279 	apwm->playback_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;  in rockchip_audio_pwm_probe()
280 	apwm->playback_dma_data.maxburst = AUDIO_PWM_DMA_BURST_SIZE;  in rockchip_audio_pwm_probe()
282 	apwm->dev = &pdev->dev;  in rockchip_audio_pwm_probe()
283 	dev_set_drvdata(&pdev->dev, apwm);  in rockchip_audio_pwm_probe()
285 	apwm->clk = devm_clk_get(&pdev->dev, "clk");  in rockchip_audio_pwm_probe()
286 	if (IS_ERR(apwm->clk))  in rockchip_audio_pwm_probe()
287 		return PTR_ERR(apwm->clk);  in rockchip_audio_pwm_probe()
289 	apwm->hclk = devm_clk_get(&pdev->dev, "hclk");  in rockchip_audio_pwm_probe()
290 	if (IS_ERR(apwm->hclk))  in rockchip_audio_pwm_probe()
291 		return PTR_ERR(apwm->hclk);  in rockchip_audio_pwm_probe()
300 	apwm->sample_width_bits = 8;  in rockchip_audio_pwm_probe()
303 		apwm->sample_width_bits = val;  in rockchip_audio_pwm_probe()
306 			     &apwm->interpolat_points);  in rockchip_audio_pwm_probe()
308 	apwm->spk_ctl_gpio = devm_gpiod_get_optional(&pdev->dev, "spk-ctl",  in rockchip_audio_pwm_probe()
311 	if (!apwm->spk_ctl_gpio) {  in rockchip_audio_pwm_probe()
313 	} else if (IS_ERR(apwm->spk_ctl_gpio)) {  in rockchip_audio_pwm_probe()
314 		ret = PTR_ERR(apwm->spk_ctl_gpio);  in rockchip_audio_pwm_probe()