soc/stm/stm32_sai_sub.c

79  * @sai_mclk: master clock from SAI mclk provider
417 	 * - mclk on or spdif:
418 	 *   f_sai_ck = MCKDIV * mclk-fs * fs
419 	 *   Here typical 256 ratio is assumed for mclk-fs
420 	 * - mclk off:
495 	struct stm32_sai_mclk_data *mclk = to_mclk_data(hw);
496 	struct stm32_sai_sub_data *sai = mclk->sai_data;
503 	mclk->freq = req->best_parent_rate / div;
505 	req->rate = mclk->freq;
513 	struct stm32_sai_mclk_data *mclk = to_mclk_data(hw);
515 	return mclk->freq;
521 	struct stm32_sai_mclk_data *mclk = to_mclk_data(hw);
522 	struct stm32_sai_sub_data *sai = mclk->sai_data;
533 	mclk->freq = rate;
540 	struct stm32_sai_mclk_data *mclk = to_mclk_data(hw);
541 	struct stm32_sai_sub_data *sai = mclk->sai_data;
551 	struct stm32_sai_mclk_data *mclk = to_mclk_data(hw);
552 	struct stm32_sai_sub_data *sai = mclk->sai_data;
570 	struct stm32_sai_mclk_data *mclk;
576 	mclk = devm_kzalloc(dev, sizeof(*mclk), GFP_KERNEL);
577 	if (!mclk)
586 	 * Forge mclk clock name from parent clock name and suffix.
596 	mclk->hw.init = CLK_HW_INIT(mclk_name, pname, &mclk_ops, 0);
597 	mclk->sai_data = sai;
598 	hw = &mclk->hw;
603 		dev_err(dev, "mclk register returned %d\n", ret);
608 	/* register mclk provider */
684 			/* Release mclk rate only if rate was actually set */
706 				"Could not set mclk rate\n");
1128 		/* mclk on (NODIV=0)
1132 		 * mclk off (NODIV=1)
1147 		 *   mclk on
1150 		 *   mclk off
1166 						"Wrong mclk ratio %d\n",
1180 				/* mclk-fs not set, master clock not active */
1625 	/* Register mclk provider if requested */