157 static int sprd_adi_check_addr(struct sprd_adi *sadi, u32 reg)  in sprd_adi_check_addr()  argument
159 	if (reg >= sadi->data->slave_addr_size) {  in sprd_adi_check_addr()
160 		dev_err(sadi->dev,  in sprd_adi_check_addr()
169 static int sprd_adi_drain_fifo(struct sprd_adi *sadi)  in sprd_adi_drain_fifo()  argument
175 		sts = readl_relaxed(sadi->base + REG_ADI_ARM_FIFO_STS);  in sprd_adi_drain_fifo()
183 		dev_err(sadi->dev, "drain write fifo timeout\n");  in sprd_adi_drain_fifo()
190 static int sprd_adi_fifo_is_full(struct sprd_adi *sadi)  in sprd_adi_fifo_is_full()  argument
192 	return readl_relaxed(sadi->base + REG_ADI_ARM_FIFO_STS) & BIT_FIFO_FULL;  in sprd_adi_fifo_is_full()
219 static int sprd_adi_read(struct sprd_adi *sadi, u32 reg, u32 *read_val)  in sprd_adi_read()  argument
226 	if (sadi->hwlock) {  in sprd_adi_read()
227 		ret = hwspin_lock_timeout_irqsave(sadi->hwlock,  in sprd_adi_read()
231 			dev_err(sadi->dev, "get the hw lock failed\n");  in sprd_adi_read()
236 	ret = sprd_adi_check_addr(sadi, reg);  in sprd_adi_read()
244 	writel_relaxed(reg, sadi->base + REG_ADI_RD_CMD);  in sprd_adi_read()
253 		val = readl_relaxed(sadi->base + REG_ADI_RD_DATA);  in sprd_adi_read()
261 		dev_err(sadi->dev, "ADI read timeout\n");  in sprd_adi_read()
272 	if (sadi->data->read_check) {  in sprd_adi_read()
273 		ret = sadi->data->read_check(val, reg);  in sprd_adi_read()
281 	if (sadi->hwlock)  in sprd_adi_read()
282 		hwspin_unlock_irqrestore(sadi->hwlock, &flags);  in sprd_adi_read()
286 static int sprd_adi_write(struct sprd_adi *sadi, u32 reg, u32 val)  in sprd_adi_write()  argument
292 	if (sadi->hwlock) {  in sprd_adi_write()
293 		ret = hwspin_lock_timeout_irqsave(sadi->hwlock,  in sprd_adi_write()
297 			dev_err(sadi->dev, "get the hw lock failed\n");  in sprd_adi_write()
302 	ret = sprd_adi_check_addr(sadi, reg);  in sprd_adi_write()
306 	ret = sprd_adi_drain_fifo(sadi);  in sprd_adi_write()
315 		if (!sprd_adi_fifo_is_full(sadi)) {  in sprd_adi_write()
317 			writel_relaxed(val, (void __iomem *)(sadi->slave_vbase + reg));  in sprd_adi_write()
325 		dev_err(sadi->dev, "write fifo is full\n");  in sprd_adi_write()
330 	if (sadi->hwlock)  in sprd_adi_write()
331 		hwspin_unlock_irqrestore(sadi->hwlock, &flags);  in sprd_adi_write()
339 	struct sprd_adi *sadi = spi_controller_get_devdata(ctlr);  in sprd_adi_transfer_one()  local
345 		ret = sprd_adi_read(sadi, reg, &val);  in sprd_adi_transfer_one()
351 		ret = sprd_adi_write(sadi, reg, val);  in sprd_adi_transfer_one()
353 		dev_err(sadi->dev, "no buffer for transfer\n");  in sprd_adi_transfer_one()
364 	struct sprd_adi *sadi = (struct sprd_adi *)p;  in sprd_adi_set_wdt_rst_mode()  local
367 	sprd_adi_read(sadi, PMIC_RST_STATUS, &val);  in sprd_adi_set_wdt_rst_mode()
369 	sprd_adi_write(sadi, PMIC_RST_STATUS, val);  in sprd_adi_set_wdt_rst_mode()
376 	struct sprd_adi *sadi = container_of(this, struct sprd_adi,  in sprd_adi_restart()  local
410 	sprd_adi_read(sadi, wdg->rst_sts, &val);  in sprd_adi_restart()
413 	sprd_adi_write(sadi, wdg->rst_sts, val);  in sprd_adi_restart()
416 	sprd_adi_read(sadi, wdg->wdg_en, &val);  in sprd_adi_restart()
418 	sprd_adi_write(sadi, wdg->wdg_en, val);  in sprd_adi_restart()
421 	sprd_adi_read(sadi, wdg->wdg_clk, &val);  in sprd_adi_restart()
423 	sprd_adi_write(sadi, wdg->wdg_clk, val);  in sprd_adi_restart()
426 	sprd_adi_write(sadi, wdg->base + REG_WDG_LOCK, WDG_UNLOCK_KEY);  in sprd_adi_restart()
428 	sprd_adi_read(sadi, wdg->base + REG_WDG_CTRL, &val);  in sprd_adi_restart()
430 	sprd_adi_write(sadi, wdg->base + REG_WDG_CTRL, val);  in sprd_adi_restart()
433 	sprd_adi_write(sadi, wdg->base + REG_WDG_LOAD_HIGH, 0);  in sprd_adi_restart()
434 	sprd_adi_write(sadi, wdg->base + REG_WDG_LOAD_LOW,  in sprd_adi_restart()
438 	sprd_adi_read(sadi, wdg->base + REG_WDG_CTRL, &val);  in sprd_adi_restart()
440 	sprd_adi_write(sadi, wdg->base + REG_WDG_CTRL, val);  in sprd_adi_restart()
443 	sprd_adi_write(sadi, wdg->base + REG_WDG_LOCK, ~WDG_UNLOCK_KEY);  in sprd_adi_restart()
447 	dev_emerg(sadi->dev, "Unable to restart system\n");  in sprd_adi_restart()
464 static void sprd_adi_hw_init(struct sprd_adi *sadi)  in sprd_adi_hw_init()  argument
466 	struct device_node *np = sadi->dev->of_node;  in sprd_adi_hw_init()
472 	writel_relaxed(0, sadi->base + REG_ADI_CHN_PRIL);  in sprd_adi_hw_init()
473 	writel_relaxed(0, sadi->base + REG_ADI_CHN_PRIH);  in sprd_adi_hw_init()
476 	tmp = readl_relaxed(sadi->base + REG_ADI_GSSI_CFG0);  in sprd_adi_hw_init()
478 	writel_relaxed(tmp, sadi->base + REG_ADI_GSSI_CFG0);  in sprd_adi_hw_init()
483 		dev_info(sadi->dev, "no hw channels setting in node\n");  in sprd_adi_hw_init()
497 		writel_relaxed(chn_config, sadi->base +  in sprd_adi_hw_init()
501 			value = readl_relaxed(sadi->base + REG_ADI_CHN_EN);  in sprd_adi_hw_init()
503 			writel_relaxed(value, sadi->base + REG_ADI_CHN_EN);  in sprd_adi_hw_init()
505 			value = readl_relaxed(sadi->base + REG_ADI_CHN_EN1);  in sprd_adi_hw_init()
507 			writel_relaxed(value, sadi->base + REG_ADI_CHN_EN1);  in sprd_adi_hw_init()
517 	struct sprd_adi *sadi;  in sprd_adi_probe()  local
541 	sadi = spi_controller_get_devdata(ctlr);  in sprd_adi_probe()
543 	sadi->base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);  in sprd_adi_probe()
544 	if (IS_ERR(sadi->base)) {  in sprd_adi_probe()
545 		ret = PTR_ERR(sadi->base);  in sprd_adi_probe()
549 	sadi->slave_vbase = (unsigned long)sadi->base +  in sprd_adi_probe()
551 	sadi->slave_pbase = res->start + data->slave_offset;  in sprd_adi_probe()
552 	sadi->ctlr = ctlr;  in sprd_adi_probe()
553 	sadi->dev = &pdev->dev;  in sprd_adi_probe()
554 	sadi->data = data;  in sprd_adi_probe()
557 		sadi->hwlock =  in sprd_adi_probe()
559 		if (!sadi->hwlock) {  in sprd_adi_probe()
574 	sprd_adi_hw_init(sadi);  in sprd_adi_probe()
576 	if (sadi->data->wdg_rst)  in sprd_adi_probe()
577 		sadi->data->wdg_rst(sadi);  in sprd_adi_probe()
592 	if (sadi->data->restart) {  in sprd_adi_probe()
593 		sadi->restart_handler.notifier_call = sadi->data->restart;  in sprd_adi_probe()
594 		sadi->restart_handler.priority = 128;  in sprd_adi_probe()
595 		ret = register_restart_handler(&sadi->restart_handler);  in sprd_adi_probe()
612 	struct sprd_adi *sadi = spi_controller_get_devdata(ctlr);  in sprd_adi_remove()  local
614 	unregister_restart_handler(&sadi->restart_handler);  in sprd_adi_remove()