147 static inline u32 mtk_chkdata_reg(struct mtk_ir *ir, u32 i)  in mtk_chkdata_reg()  argument
149 	return ir->data->regs[MTK_CHKDATA_REG] + 4 * i;  in mtk_chkdata_reg()
152 static inline u32 mtk_chk_period(struct mtk_ir *ir)  in mtk_chk_period()  argument
160 	val = DIV_ROUND_CLOSEST(clk_get_rate(ir->bus),  in mtk_chk_period()
161 				USEC_PER_SEC * ir->data->div / MTK_IR_SAMPLE);  in mtk_chk_period()
163 	dev_dbg(ir->dev, "@pwm clk  = \t%lu\n",  in mtk_chk_period()
164 		clk_get_rate(ir->bus) / ir->data->div);  in mtk_chk_period()
165 	dev_dbg(ir->dev, "@chkperiod = %08x\n", val);  in mtk_chk_period()
170 static void mtk_w32_mask(struct mtk_ir *ir, u32 val, u32 mask, unsigned int reg)  in mtk_w32_mask()  argument
174 	tmp = __raw_readl(ir->base + reg);  in mtk_w32_mask()
176 	__raw_writel(tmp, ir->base + reg);  in mtk_w32_mask()
179 static void mtk_w32(struct mtk_ir *ir, u32 val, unsigned int reg)  in mtk_w32()  argument
181 	__raw_writel(val, ir->base + reg);  in mtk_w32()
184 static u32 mtk_r32(struct mtk_ir *ir, unsigned int reg)  in mtk_r32()  argument
186 	return __raw_readl(ir->base + reg);  in mtk_r32()
189 static inline void mtk_irq_disable(struct mtk_ir *ir, u32 mask)  in mtk_irq_disable()  argument
193 	val = mtk_r32(ir, ir->data->regs[MTK_IRINT_EN_REG]);  in mtk_irq_disable()
194 	mtk_w32(ir, val & ~mask, ir->data->regs[MTK_IRINT_EN_REG]);  in mtk_irq_disable()
197 static inline void mtk_irq_enable(struct mtk_ir *ir, u32 mask)  in mtk_irq_enable()  argument
201 	val = mtk_r32(ir, ir->data->regs[MTK_IRINT_EN_REG]);  in mtk_irq_enable()
202 	mtk_w32(ir, val | mask, ir->data->regs[MTK_IRINT_EN_REG]);  in mtk_irq_enable()
208 	struct mtk_ir *ir = dev_id;  in mtk_ir_irq()  local
228 		val = mtk_r32(ir, mtk_chkdata_reg(ir, i));  in mtk_ir_irq()
229 		dev_dbg(ir->dev, "@reg%d=0x%08x\n", i, val);  in mtk_ir_irq()
236 			ir_raw_event_store_with_filter(ir->rc, &rawir);  in mtk_ir_irq()
252 		ir_raw_event_store_with_filter(ir->rc, &rawir);  in mtk_ir_irq()
255 	ir_raw_event_handle(ir->rc);  in mtk_ir_irq()
261 	mtk_w32_mask(ir, 0x1, MTK_IRCLR, ir->data->regs[MTK_IRCLR_REG]);  in mtk_ir_irq()
264 	mtk_w32_mask(ir, 0x1, MTK_IRINT_CLR,  in mtk_ir_irq()
265 		     ir->data->regs[MTK_IRINT_CLR_REG]);  in mtk_ir_irq()
297 	struct mtk_ir *ir;  in mtk_ir_probe()  local
302 	ir = devm_kzalloc(dev, sizeof(struct mtk_ir), GFP_KERNEL);  in mtk_ir_probe()
303 	if (!ir)  in mtk_ir_probe()
306 	ir->dev = dev;  in mtk_ir_probe()
307 	ir->data = of_device_get_match_data(dev);  in mtk_ir_probe()
309 	ir->clk = devm_clk_get(dev, "clk");  in mtk_ir_probe()
310 	if (IS_ERR(ir->clk)) {  in mtk_ir_probe()
312 		return PTR_ERR(ir->clk);  in mtk_ir_probe()
315 	ir->bus = devm_clk_get(dev, "bus");  in mtk_ir_probe()
316 	if (IS_ERR(ir->bus)) {  in mtk_ir_probe()
321 		ir->bus = ir->clk;  in mtk_ir_probe()
324 	ir->base = devm_platform_ioremap_resource(pdev, 0);  in mtk_ir_probe()
325 	if (IS_ERR(ir->base))  in mtk_ir_probe()
326 		return PTR_ERR(ir->base);  in mtk_ir_probe()
328 	ir->rc = devm_rc_allocate_device(dev, RC_DRIVER_IR_RAW);  in mtk_ir_probe()
329 	if (!ir->rc) {  in mtk_ir_probe()
334 	ir->rc->priv = ir;  in mtk_ir_probe()
335 	ir->rc->device_name = MTK_IR_DEV;  in mtk_ir_probe()
336 	ir->rc->input_phys = MTK_IR_DEV "/input0";  in mtk_ir_probe()
337 	ir->rc->input_id.bustype = BUS_HOST;  in mtk_ir_probe()
338 	ir->rc->input_id.vendor = 0x0001;  in mtk_ir_probe()
339 	ir->rc->input_id.product = 0x0001;  in mtk_ir_probe()
340 	ir->rc->input_id.version = 0x0001;  in mtk_ir_probe()
342 	ir->rc->map_name = map_name ?: RC_MAP_EMPTY;  in mtk_ir_probe()
343 	ir->rc->dev.parent = dev;  in mtk_ir_probe()
344 	ir->rc->driver_name = MTK_IR_DEV;  in mtk_ir_probe()
345 	ir->rc->allowed_protocols = RC_PROTO_BIT_ALL_IR_DECODER;  in mtk_ir_probe()
346 	ir->rc->rx_resolution = MTK_IR_SAMPLE;  in mtk_ir_probe()
347 	ir->rc->timeout = MTK_MAX_SAMPLES * (MTK_IR_SAMPLE + 1);  in mtk_ir_probe()
349 	ret = devm_rc_register_device(dev, ir->rc);  in mtk_ir_probe()
355 	platform_set_drvdata(pdev, ir);  in mtk_ir_probe()
357 	ir->irq = platform_get_irq(pdev, 0);  in mtk_ir_probe()
358 	if (ir->irq < 0)  in mtk_ir_probe()
361 	if (clk_prepare_enable(ir->clk)) {  in mtk_ir_probe()
366 	if (clk_prepare_enable(ir->bus)) {  in mtk_ir_probe()
376 	mtk_irq_disable(ir, MTK_IRINT_EN);  in mtk_ir_probe()
378 	ret = devm_request_irq(dev, ir->irq, mtk_ir_irq, 0, MTK_IR_DEV, ir);  in mtk_ir_probe()
387 	val = (mtk_chk_period(ir) << ir->data->fields[MTK_CHK_PERIOD].offset) &  in mtk_ir_probe()
388 	       ir->data->fields[MTK_CHK_PERIOD].mask;  in mtk_ir_probe()
389 	mtk_w32_mask(ir, val, ir->data->fields[MTK_CHK_PERIOD].mask,  in mtk_ir_probe()
390 		     ir->data->fields[MTK_CHK_PERIOD].reg);  in mtk_ir_probe()
396 	val = (ir->data->hw_period << ir->data->fields[MTK_HW_PERIOD].offset) &  in mtk_ir_probe()
397 	       ir->data->fields[MTK_HW_PERIOD].mask;  in mtk_ir_probe()
398 	mtk_w32_mask(ir, val, ir->data->fields[MTK_HW_PERIOD].mask,  in mtk_ir_probe()
399 		     ir->data->fields[MTK_HW_PERIOD].reg);  in mtk_ir_probe()
402 	mtk_w32_mask(ir, MTK_DG_CNT(1), MTK_DG_CNT_MASK, MTK_IRTHD);  in mtk_ir_probe()
405 	val = mtk_r32(ir, MTK_CONFIG_HIGH_REG) & ~MTK_OK_COUNT_MASK;  in mtk_ir_probe()
406 	val |= MTK_OK_COUNT(ir->data->ok_count) |  MTK_PWM_EN | MTK_IR_EN;  in mtk_ir_probe()
407 	mtk_w32(ir, val, MTK_CONFIG_HIGH_REG);  in mtk_ir_probe()
409 	mtk_irq_enable(ir, MTK_IRINT_EN);  in mtk_ir_probe()
417 	clk_disable_unprepare(ir->bus);  in mtk_ir_probe()
419 	clk_disable_unprepare(ir->clk);  in mtk_ir_probe()
426 	struct mtk_ir *ir = platform_get_drvdata(pdev);  in mtk_ir_remove()  local
433 	mtk_irq_disable(ir, MTK_IRINT_EN);  in mtk_ir_remove()
434 	synchronize_irq(ir->irq);  in mtk_ir_remove()
436 	clk_disable_unprepare(ir->bus);  in mtk_ir_remove()
437 	clk_disable_unprepare(ir->clk);  in mtk_ir_remove()