1 // SPDX-License-Identifier: GPL-2.0-only
87 	struct mchp_tc_data *const priv = counter->priv;  in mchp_tc_count_function_get()
89 	if (priv->qdec_mode)  in mchp_tc_count_function_get()
101 	struct mchp_tc_data *const priv = counter->priv;  in mchp_tc_count_function_set()
104 	regmap_read(priv->regmap, ATMEL_TC_BMR, &bmr);  in mchp_tc_count_function_set()
105 	regmap_read(priv->regmap, ATMEL_TC_REG(priv->channel[0], CMR), &cmr);  in mchp_tc_count_function_set()
107 	/* Set capture mode */  in mchp_tc_count_function_set()
112 		priv->qdec_mode = 0;  in mchp_tc_count_function_set()
115 		if (priv->tc_cfg->has_gclk)  in mchp_tc_count_function_set()
119 		/* Setup the period capture mode */  in mchp_tc_count_function_set()
124 		if (!priv->tc_cfg->has_qdec)  in mchp_tc_count_function_set()
125 			return -EINVAL;  in mchp_tc_count_function_set()
127 		if (priv->num_channels < 2 || priv->channel[0] != 0 ||  in mchp_tc_count_function_set()
128 		    priv->channel[1] != 1) {  in mchp_tc_count_function_set()
130 			return -EINVAL;  in mchp_tc_count_function_set()
132 		priv->qdec_mode = 1;  in mchp_tc_count_function_set()
138 	regmap_write(priv->regmap, ATMEL_TC_BMR, bmr);  in mchp_tc_count_function_set()
139 	regmap_write(priv->regmap, ATMEL_TC_REG(priv->channel[0], CMR), cmr);  in mchp_tc_count_function_set()
142 	regmap_write(priv->regmap, ATMEL_TC_REG(priv->channel[0], CCR),  in mchp_tc_count_function_set()
145 	if (priv->qdec_mode) {  in mchp_tc_count_function_set()
146 		regmap_write(priv->regmap,  in mchp_tc_count_function_set()
147 			     ATMEL_TC_REG(priv->channel[1], CMR), cmr);  in mchp_tc_count_function_set()
148 		regmap_write(priv->regmap,  in mchp_tc_count_function_set()
149 			     ATMEL_TC_REG(priv->channel[1], CCR),  in mchp_tc_count_function_set()
160 	struct mchp_tc_data *const priv = counter->priv;  in mchp_tc_count_signal_read()
164 	regmap_read(priv->regmap, ATMEL_TC_REG(priv->channel[0], SR), &sr);  in mchp_tc_count_signal_read()
166 	if (priv->trig_inverted)  in mchp_tc_count_signal_read()
181 	struct mchp_tc_data *const priv = counter->priv;  in mchp_tc_count_action_get()
184 	regmap_read(priv->regmap, ATMEL_TC_REG(priv->channel[0], CMR), &cmr);  in mchp_tc_count_action_get()
209 	struct mchp_tc_data *const priv = counter->priv;  in mchp_tc_count_action_set()
213 	if (priv->qdec_mode)  in mchp_tc_count_action_set()
214 		return -EINVAL;  in mchp_tc_count_action_set()
231 	return regmap_write_bits(priv->regmap,  in mchp_tc_count_action_set()
232 				ATMEL_TC_REG(priv->channel[0], CMR),  in mchp_tc_count_action_set()
240 	struct mchp_tc_data *const priv = counter->priv;  in mchp_tc_count_read()
243 	regmap_read(priv->regmap, ATMEL_TC_REG(priv->channel[0], CV), &cnt);  in mchp_tc_count_read()
289 	{ .compatible = "atmel,at91rm9200-tcb", .data = &tcb_rm9200_config, },
290 	{ .compatible = "atmel,at91sam9x5-tcb", .data = &tcb_sam9x5_config, },
291 	{ .compatible = "atmel,sama5d2-tcb", .data = &tcb_sama5d2_config, },
292 	{ .compatible = "atmel,sama5d3-tcb", .data = &tcb_sama5d3_config, },
303 	struct device_node *np = pdev->dev.of_node;  in mchp_tc_probe()
313 	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);  in mchp_tc_probe()
315 		return -ENOMEM;  in mchp_tc_probe()
319 	match = of_match_node(atmel_tc_of_match, np->parent);  in mchp_tc_probe()
320 	tcb_config = match->data;  in mchp_tc_probe()
322 		dev_err(&pdev->dev, "No matching parent node found\n");  in mchp_tc_probe()
323 		return -ENODEV;  in mchp_tc_probe()
326 	regmap = syscon_node_to_regmap(np->parent);  in mchp_tc_probe()
331 	priv->num_channels = of_property_count_u32_elems(np, "reg");  in mchp_tc_probe()
332 	if (priv->num_channels < 0) {  in mchp_tc_probe()
333 		dev_err(&pdev->dev, "Invalid or missing channel\n");  in mchp_tc_probe()
334 		return -EINVAL;  in mchp_tc_probe()
338 	for (i = 0; i < priv->num_channels; i++) {  in mchp_tc_probe()
341 			return -ENODEV;  in mchp_tc_probe()
343 		priv->channel[i] = channel;  in mchp_tc_probe()
347 		clk[i] = of_clk_get_by_name(np->parent, clk_name);  in mchp_tc_probe()
350 			clk[i] = of_clk_get_by_name(np->parent, "t0_clk");  in mchp_tc_probe()
359 		ret = devm_add_action_or_reset(&pdev->dev,  in mchp_tc_probe()
365 		dev_dbg(&pdev->dev,  in mchp_tc_probe()
366 			"Initialized capture mode on channel %d\n",  in mchp_tc_probe()
370 	priv->tc_cfg = tcb_config;  in mchp_tc_probe()
371 	priv->regmap = regmap;  in mchp_tc_probe()
372 	priv->counter.name = dev_name(&pdev->dev);  in mchp_tc_probe()
373 	priv->counter.parent = &pdev->dev;  in mchp_tc_probe()
374 	priv->counter.ops = &mchp_tc_ops;  in mchp_tc_probe()
375 	priv->counter.num_counts = ARRAY_SIZE(mchp_tc_counts);  in mchp_tc_probe()
376 	priv->counter.counts = mchp_tc_counts;  in mchp_tc_probe()
377 	priv->counter.num_signals = ARRAY_SIZE(mchp_tc_count_signals);  in mchp_tc_probe()
378 	priv->counter.signals = mchp_tc_count_signals;  in mchp_tc_probe()
379 	priv->counter.priv = priv;  in mchp_tc_probe()
381 	return devm_counter_register(&pdev->dev, &priv->counter);  in mchp_tc_probe()
385 	{ .compatible = "microchip,tcb-capture", },
393 		.name = "microchip-tcb-capture",
400 MODULE_DESCRIPTION("Microchip TCB Capture driver");