drivers/spmi/spmi-mtk-pmif.c

265 static u32 pmif_readl(struct pmif *arb, enum pmif_regs reg)
267 	return readl(arb->base + arb->data->regs[reg]);
270 static void pmif_writel(struct pmif *arb, u32 val, enum pmif_regs reg)
272 	writel(val, arb->base + arb->data->regs[reg]);
275 static void mtk_spmi_writel(struct pmif *arb, u32 val, enum spmi_regs reg)
277 	writel(val, arb->spmimst_base + arb->data->spmimst_regs[reg]);
280 static bool pmif_is_fsm_vldclr(struct pmif *arb)
284 	reg_rdata = pmif_readl(arb, arb->chan.ch_sta);
291 	struct pmif *arb = spmi_controller_get_drvdata(ctrl);
301 	mtk_spmi_writel(arb, (cmd << 0x4) | sid, SPMI_OP_ST_CTRL);
302 	ret = readl_poll_timeout_atomic(arb->spmimst_base + arb->data->spmimst_regs[SPMI_OP_ST_STA],
314 	struct pmif *arb = spmi_controller_get_drvdata(ctrl);
339 	raw_spin_lock_irqsave(&arb->lock, flags);
341 	inf_reg = &arb->chan;
342 	ret = readl_poll_timeout_atomic(arb->base + arb->data->regs[inf_reg->ch_sta],
347 		if (pmif_is_fsm_vldclr(arb))
348 			pmif_writel(arb, 1, inf_reg->ch_rdy);
349 		raw_spin_unlock_irqrestore(&arb->lock, flags);
356 	pmif_writel(arb, cmd, inf_reg->ch_send);
357 	raw_spin_unlock_irqrestore(&arb->lock, flags);
363 	ret = readl_poll_timeout_atomic(arb->base + arb->data->regs[inf_reg->ch_sta],
371 	data = pmif_readl(arb, inf_reg->rdata);
373 	pmif_writel(arb, 1, inf_reg->ch_rdy);
381 	struct pmif *arb = spmi_controller_get_drvdata(ctrl);
412 	raw_spin_lock_irqsave(&arb->lock, flags);
414 	inf_reg = &arb->chan;
415 	ret = readl_poll_timeout_atomic(arb->base + arb->data->regs[inf_reg->ch_sta],
420 		if (pmif_is_fsm_vldclr(arb))
421 			pmif_writel(arb, 1, inf_reg->ch_rdy);
422 		raw_spin_unlock_irqrestore(&arb->lock, flags);
427 	pmif_writel(arb, wdata, inf_reg->wdata);
431 	pmif_writel(arb, cmd, inf_reg->ch_send);
432 	raw_spin_unlock_irqrestore(&arb->lock, flags);
451 	struct pmif *arb;
456 	ctrl = devm_spmi_controller_alloc(&pdev->dev, sizeof(*arb));
460 	arb = spmi_controller_get_drvdata(ctrl);
461 	arb->data = device_get_match_data(&pdev->dev);
462 	if (!arb->data) {
467 	arb->base = devm_platform_ioremap_resource_byname(pdev, "pmif");
468 	if (IS_ERR(arb->base))
469 		return PTR_ERR(arb->base);
471 	arb->spmimst_base = devm_platform_ioremap_resource_byname(pdev, "spmimst");
472 	if (IS_ERR(arb->spmimst_base))
473 		return PTR_ERR(arb->spmimst_base);
475 	arb->nclks = ARRAY_SIZE(pmif_clock_names);
476 	for (i = 0; i < arb->nclks; i++)
477 		arb->clks[i].id = pmif_clock_names[i];
479 	err = clk_bulk_get(&pdev->dev, arb->nclks, arb->clks);
485 	err = clk_bulk_prepare_enable(arb->nclks, arb->clks);
495 	chan_offset = PMIF_CHAN_OFFSET * arb->data->soc_chan;
496 	arb->chan.ch_sta = PMIF_SWINF_0_STA + chan_offset;
497 	arb->chan.wdata = PMIF_SWINF_0_WDATA_31_0 + chan_offset;
498 	arb->chan.rdata = PMIF_SWINF_0_RDATA_31_0 + chan_offset;
499 	arb->chan.ch_send = PMIF_SWINF_0_ACC + chan_offset;
500 	arb->chan.ch_rdy = PMIF_SWINF_0_VLD_CLR + chan_offset;
502 	raw_spin_lock_init(&arb->lock);
513 	clk_bulk_disable_unprepare(arb->nclks, arb->clks);
515 	clk_bulk_put(arb->nclks, arb->clks);
522 	struct pmif *arb = spmi_controller_get_drvdata(ctrl);
525 	clk_bulk_disable_unprepare(arb->nclks, arb->clks);
526 	clk_bulk_put(arb->nclks, arb->clks);