32 static int ppi_attach_irq(struct ppi_if *ppi, irq_handler_t handler);
33 static void ppi_detach_irq(struct ppi_if *ppi);
34 static int ppi_start(struct ppi_if *ppi);
35 static int ppi_stop(struct ppi_if *ppi);
36 static int ppi_set_params(struct ppi_if *ppi, struct ppi_params *params);
37 static void ppi_update_addr(struct ppi_if *ppi, unsigned long addr);
50 	struct ppi_if *ppi = dev_id;  in ppi_irq_err()  local
51 	const struct ppi_info *info = ppi->info;  in ppi_irq_err()
64 			ppi->err = true;  in ppi_irq_err()
75 			ppi->err = true;  in ppi_irq_err()
86 			ppi->err = true;  in ppi_irq_err()
97 static int ppi_attach_irq(struct ppi_if *ppi, irq_handler_t handler)  in ppi_attach_irq()  argument
99 	const struct ppi_info *info = ppi->info;  in ppi_attach_irq()
108 	set_dma_callback(info->dma_ch, handler, ppi);  in ppi_attach_irq()
110 	if (ppi->err_int) {  in ppi_attach_irq()
111 		ret = request_irq(info->irq_err, ppi_irq_err, 0, "PPI ERROR", ppi);  in ppi_attach_irq()
120 static void ppi_detach_irq(struct ppi_if *ppi)  in ppi_detach_irq()  argument
122 	const struct ppi_info *info = ppi->info;  in ppi_detach_irq()
124 	if (ppi->err_int)  in ppi_detach_irq()
125 		free_irq(info->irq_err, ppi);  in ppi_detach_irq()
129 static int ppi_start(struct ppi_if *ppi)  in ppi_start()  argument
131 	const struct ppi_info *info = ppi->info;  in ppi_start()
137 	ppi->ppi_control |= PORT_EN;  in ppi_start()
142 		bfin_write16(&reg->control, ppi->ppi_control);  in ppi_start()
148 		bfin_write32(&reg->control, ppi->ppi_control);  in ppi_start()
154 		bfin_write32(&reg->ctl, ppi->ppi_control);  in ppi_start()
165 static int ppi_stop(struct ppi_if *ppi)  in ppi_stop()  argument
167 	const struct ppi_info *info = ppi->info;  in ppi_stop()
170 	ppi->ppi_control &= ~PORT_EN;  in ppi_stop()
175 		bfin_write16(&reg->control, ppi->ppi_control);  in ppi_stop()
181 		bfin_write32(&reg->control, ppi->ppi_control);  in ppi_stop()
187 		bfin_write32(&reg->ctl, ppi->ppi_control);  in ppi_stop()
202 static int ppi_set_params(struct ppi_if *ppi, struct ppi_params *params)  in ppi_set_params()  argument
204 	const struct ppi_info *info = ppi->info;  in ppi_set_params()
216 	pctrl = devm_pinctrl_get(ppi->dev);  in ppi_set_params()
229 		ppi->err_int = false;  in ppi_set_params()
231 		ppi->err_int = true;  in ppi_set_params()
234 	ppi->ppi_control = params->ppi_control & ~PORT_EN;  in ppi_set_params()
235 	if (!(ppi->ppi_control & PORT_DIR))  in ppi_set_params()
245 		bfin_write16(&reg->control, ppi->ppi_control);  in ppi_set_params()
258 		bfin_write32(&reg->control, ppi->ppi_control);  in ppi_set_params()
275 		bfin_write32(&reg->ctl, ppi->ppi_control);  in ppi_set_params()
284 		if (ppi->ppi_control & PORT_DIR) {  in ppi_set_params()
320 static void ppi_update_addr(struct ppi_if *ppi, unsigned long addr)  in ppi_update_addr()  argument
322 	set_dma_start_addr(ppi->info->dma_ch, addr);  in ppi_update_addr()
328 	struct ppi_if *ppi;  in ppi_create_instance()  local
340 	ppi = kzalloc(sizeof(*ppi), GFP_KERNEL);  in ppi_create_instance()
341 	if (!ppi) {  in ppi_create_instance()
346 	ppi->ops = &ppi_ops;  in ppi_create_instance()
347 	ppi->info = info;  in ppi_create_instance()
348 	ppi->dev = &pdev->dev;  in ppi_create_instance()
351 	return ppi;  in ppi_create_instance()
355 void ppi_delete_instance(struct ppi_if *ppi)  in ppi_delete_instance()  argument
357 	peripheral_free_list(ppi->info->pin_req);  in ppi_delete_instance()
358 	kfree(ppi);  in ppi_delete_instance()