2  * max98095.c -- MAX98095 ALSA SoC Audio driver
67  * @return	int value 0 for success, -1 in case of error.
77 		return -1;  in max98095_i2c_read()
86  * @param reg	codec register
90  * @return int value 0 for success, non-zero error code.
99 		return -1;  in max98095_update_bits()
111  * codec mclk clock divider coefficients based on sampling rate
130 	return -1;  in rate_value()
140  * @return -1 for error  and 0  Success.
152 	if (aif_id == AIF1) {  in max98095_hw_params()
174 		return -1;  in max98095_hw_params()
180 		return -1;  in max98095_hw_params()
182 	max98095->rate = rate;  in max98095_hw_params()
197 		return -1;  in max98095_hw_params()
209  * @return -1 for error and 0 success.
217 	if (freq == max98095->sysclk)  in max98095_set_sysclk()
233 		return -1;  in max98095_set_sysclk()
239 		return -1;  in max98095_set_sysclk()
241 	max98095->sysclk = freq;  in max98095_set_sysclk()
249  * @param fmt		i2S format - supports a subset of the options defined
252  * @return -1 for error and 0  Success.
264 	if (fmt == max98095->fmt)  in max98095_set_fmt()
267 	max98095->fmt = fmt;  in max98095_set_fmt()
269 	if (aif_id == AIF1) {  in max98095_set_fmt()
297 		return -1;  in max98095_set_fmt()
308 		return -1;  in max98095_set_fmt()
325 		return -1;  in max98095_set_fmt()
338 		return -1;  in max98095_set_fmt()
345  * resets the audio codec
347  * @return -1 for error and 0 success.
354 	 * Gracefully reset the DSP core and the codec hardware in a proper  in max98095_reset()
365 		debug("%s: Failed to reset codec: %d\n", __func__, ret);  in max98095_reset()
385  * Intialise max98095 codec device
389  * @returns -1 for error  and 0 Success.
397 	/* reset the codec, the DSP core, and disable all interrupts */  in max98095_device_init()
405 	max98095->sysclk = -1U;  in max98095_device_init()
406 	max98095->rate = -1U;  in max98095_device_init()
407 	max98095->fmt = -1U;  in max98095_device_init()
415 	debug("%s: Hardware revision: %c\n", __func__, (id - 0x40) + 'A');  in max98095_device_init()
423 	if (aif_id == AIF1)  in max98095_device_init()
435 	if (aif_id == AIF1)  in max98095_device_init()
442 	/* take the codec out of the shut down */  in max98095_device_init()
462 	if (aif_id == AIF1)  in max98095_device_init()
469 		return -1;  in max98095_device_init()
481 	/* Enable codec clock */  in max98095_do_init()
485 	g_max98095_i2c_dev_addr = pcodec_info->i2c_dev_addr >> 1;  in max98095_do_init()
487 	if (pcodec_info->codec_type == CODEC_MAX_98095) {  in max98095_do_init()
490 		debug("%s: Codec id [%d] not defined\n", __func__,  in max98095_do_init()
491 		      pcodec_info->codec_type);  in max98095_do_init()
492 		return -1;  in max98095_do_init()
497 		debug("%s: max98095 codec chip init failed\n", __func__);  in max98095_do_init()
503 		debug("%s: max98095 codec set sys clock failed\n", __func__);  in max98095_do_init()
530 	/* Get the node from FDT for codec */  in get_max98095_codec_values()
533 		debug("EXYNOS_SOUND: No node for codec in device tree\n");  in get_max98095_codec_values()
535 		return -1;  in get_max98095_codec_values()
541 		return -1;  in get_max98095_codec_values()
547 		pcodec_info->i2c_bus = i2c_get_bus_num_fdt(parent);  in get_max98095_codec_values()
548 		error |= pcodec_info->i2c_bus;  in get_max98095_codec_values()
549 		debug("i2c bus = %d\n", pcodec_info->i2c_bus);  in get_max98095_codec_values()
550 		pcodec_info->i2c_dev_addr = fdtdec_get_int(blob, node,  in get_max98095_codec_values()
552 		error |= pcodec_info->i2c_dev_addr;  in get_max98095_codec_values()
553 		debug("i2c dev addr = %x\n", pcodec_info->i2c_dev_addr);  in get_max98095_codec_values()
557 		return -1;  in get_max98095_codec_values()
560 	pcodec_info->i2c_bus = AUDIO_I2C_BUS;  in get_max98095_codec_values()
561 	pcodec_info->i2c_dev_addr = AUDIO_I2C_REG;  in get_max98095_codec_values()
562 	debug("i2c dev addr = %d\n", pcodec_info->i2c_dev_addr);  in get_max98095_codec_values()
564 	pcodec_info->codec_type = CODEC_MAX_98095;  in get_max98095_codec_values()
565 	if (error == -1) {  in get_max98095_codec_values()
566 		debug("fail to get max98095 codec node properties\n");  in get_max98095_codec_values()
567 		return -1;  in get_max98095_codec_values()
583 		debug("FDT Codec values failed\n");  in max98095_init()
584 		return -1;  in max98095_init()
587 	i2c_set_bus_num(pcodec_info->i2c_bus);  in max98095_init()