1 // SPDX-License-Identifier: GPL-2.0
11 #include <linux/platform_data/asoc-s3c24xx_simtec.h>
13 #include "s3c24xx-i2s.h"
23  * speaker_gain_get - read the speaker gain setting.
24  * @kcontrol: The control for the speaker gain.
27  * Read the value for the AMP gain control.
32 	ucontrol->value.integer.value[0] = spk_gain;  in speaker_gain_get()
37  * speaker_gain_set - set the value of the speaker amp gain
42 	gpio_set_value_cansleep(pdata->amp_gain[0], value & 1);  in speaker_gain_set()
43 	gpio_set_value_cansleep(pdata->amp_gain[1], value >> 1);  in speaker_gain_set()
47  * speaker_gain_put - set the speaker gain setting.
48  * @kcontrol: The control for the speaker gain.
51  * Set the value of the speaker gain from the specified
54  * Note, if the speaker amp is muted, then we do not set a gain value
55  * as at-least one of the ICs that is fitted will try and power up even
61 	int value = ucontrol->value.integer.value[0];  in speaker_gain_put()
72 	SOC_SINGLE_EXT("Speaker Gain", 0, 0, 3, 0,
77  * spk_unmute_state - set the unmute state of the speaker
78  * @to: zero to unmute, non-zero to ununmute.
85 	gpio_set_value(pdata->amp_gpio, to);  in spk_unmute_state()
87 	/* if we're umuting, also re-set the gain */  in spk_unmute_state()
88 	if (to && pdata->amp_gain[0] > 0)  in spk_unmute_state()
93  * speaker_unmute_get - read the speaker unmute setting.
94  * @kcontrol: The control for the speaker gain.
97  * Read the value for the AMP gain control.
102 	ucontrol->value.integer.value[0] = spk_unmute;  in speaker_unmute_get()
107  * speaker_unmute_put - set the speaker unmute setting.
108  * @kcontrol: The control for the speaker gain.
111  * Set the value of the speaker gain from the specified
117 	spk_unmute_state(ucontrol->value.integer.value[0]);  in speaker_unmute_put()
132 	struct snd_soc_card *card = rtd->card;  in simtec_audio_init()
134 	if (pdata->amp_gpio > 0) {  in simtec_audio_init()
141 	if (pdata->amp_gain[0] > 0) {  in simtec_audio_init()
152  * simtec_hw_params - update hardware parameters
174 	if (pdata->use_mpllin) {  in simtec_hw_params()
185 	if (pdata->output_cdclk) {  in simtec_hw_params()
189 		cdclk_scale--;  in simtec_hw_params()
208 	if (pd->startup)  in simtec_call_startup()
209 		pd->startup();  in simtec_call_startup()
219  * attach_gpio_amp - get and configure the necessary gpios
231 	/* attach gpio amp gain (if any) */  in attach_gpio_amp()
232 	if (pdata->amp_gain[0] > 0) {  in attach_gpio_amp()
233 		ret = gpio_request(pd->amp_gain[0], "gpio-amp-gain0");  in attach_gpio_amp()
239 		ret = gpio_request(pd->amp_gain[1], "gpio-amp-gain1");  in attach_gpio_amp()
242 			gpio_free(pdata->amp_gain[0]);  in attach_gpio_amp()
246 		gpio_direction_output(pd->amp_gain[0], 0);  in attach_gpio_amp()
247 		gpio_direction_output(pd->amp_gain[1], 0);  in attach_gpio_amp()
251 	if (pdata->amp_gpio > 0) {  in attach_gpio_amp()
252 		ret = gpio_request(pd->amp_gpio, "gpio-amp");  in attach_gpio_amp()
255 				pd->amp_gpio, ret);  in attach_gpio_amp()
266 	if (pd->amp_gain[0] > 0) {  in attach_gpio_amp()
267 		gpio_free(pd->amp_gain[0]);  in attach_gpio_amp()
268 		gpio_free(pd->amp_gain[1]);  in attach_gpio_amp()
276 	if (pd->amp_gain[0] > 0) {  in detach_gpio_amp()
277 		gpio_free(pd->amp_gain[0]);  in detach_gpio_amp()
278 		gpio_free(pd->amp_gain[1]);  in detach_gpio_amp()
281 	if (pd->amp_gpio > 0)  in detach_gpio_amp()
282 		gpio_free(pd->amp_gpio);  in detach_gpio_amp()
304 	card->dai_link->ops = &simtec_snd_ops;  in simtec_audio_core_probe()
305 	card->dai_link->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |  in simtec_audio_core_probe()
308 	pdata = pdev->dev.platform_data;  in simtec_audio_core_probe()
310 		dev_err(&pdev->dev, "no platform data supplied\n");  in simtec_audio_core_probe()
311 		return -EINVAL;  in simtec_audio_core_probe()
316 	xtal_clk = clk_get(&pdev->dev, "xtal");  in simtec_audio_core_probe()
318 		dev_err(&pdev->dev, "could not get clkout0\n");  in simtec_audio_core_probe()
319 		return -EINVAL;  in simtec_audio_core_probe()
322 	dev_info(&pdev->dev, "xtal rate is %ld\n", clk_get_rate(xtal_clk));  in simtec_audio_core_probe()
324 	ret = attach_gpio_amp(&pdev->dev, pdata);  in simtec_audio_core_probe()
328 	snd_dev = platform_device_alloc("soc-audio", -1);  in simtec_audio_core_probe()
330 		dev_err(&pdev->dev, "failed to alloc soc-audio device\n");  in simtec_audio_core_probe()
331 		ret = -ENOMEM;  in simtec_audio_core_probe()
339 		dev_err(&pdev->dev, "failed to add soc-audio dev\n");  in simtec_audio_core_probe()