3  * R-Mobile TPU PWM driver
72 	struct tpu_device *tpu;  member
73 	unsigned int channel;		/* Channel number in the TPU */
94 	void __iomem *base = pwm->tpu->base + TPU_CHANNEL_OFFSET  in tpu_pwm_write()
105 	dev_dbg(&pwm->tpu->pdev->dev, "%u: configuring pin as %s\n",  in tpu_pwm_set_pin()
132 	spin_lock_irqsave(&pwm->tpu->lock, flags);  in tpu_pwm_start_stop()
133 	value = ioread16(pwm->tpu->base + TPU_TSTR);  in tpu_pwm_start_stop()
140 	iowrite16(value, pwm->tpu->base + TPU_TSTR);  in tpu_pwm_start_stop()
141 	spin_unlock_irqrestore(&pwm->tpu->lock, flags);  in tpu_pwm_start_stop()
150 		pm_runtime_get_sync(&pwm->tpu->pdev->dev);  in tpu_pwm_timer_start()
151 		ret = clk_prepare_enable(pwm->tpu->clk);  in tpu_pwm_timer_start()
153 			dev_err(&pwm->tpu->pdev->dev, "cannot enable clock\n");  in tpu_pwm_timer_start()
182 	dev_dbg(&pwm->tpu->pdev->dev, "%u: TGRA 0x%04x TGRB 0x%04x\n",  in tpu_pwm_timer_start()
200 	clk_disable_unprepare(pwm->tpu->clk);  in tpu_pwm_timer_stop()
201 	pm_runtime_put(&pwm->tpu->pdev->dev);  in tpu_pwm_timer_stop()
212 	struct tpu_device *tpu = to_tpu_device(chip);  in tpu_pwm_request()  local
222 	pwm->tpu = tpu;  in tpu_pwm_request()
249 	struct tpu_device *tpu = to_tpu_device(chip);  in tpu_pwm_config()  local
261 	clk_rate = clk_get_rate(tpu->clk);  in tpu_pwm_config()
271 		dev_err(&tpu->pdev->dev, "clock rate mismatch\n");  in tpu_pwm_config()
284 	dev_dbg(&tpu->pdev->dev,  in tpu_pwm_config()
306 		dev_dbg(&tpu->pdev->dev, "%u: TGRA 0x%04x\n", pwm->channel,  in tpu_pwm_config()
385 	struct tpu_device *tpu;  in tpu_probe()  local
389 	tpu = devm_kzalloc(&pdev->dev, sizeof(*tpu), GFP_KERNEL);  in tpu_probe()
390 	if (tpu == NULL)  in tpu_probe()
393 	spin_lock_init(&tpu->lock);  in tpu_probe()
394 	tpu->pdev = pdev;  in tpu_probe()
398 	tpu->base = devm_ioremap_resource(&pdev->dev, res);  in tpu_probe()
399 	if (IS_ERR(tpu->base))  in tpu_probe()
400 		return PTR_ERR(tpu->base);  in tpu_probe()
402 	tpu->clk = devm_clk_get(&pdev->dev, NULL);  in tpu_probe()
403 	if (IS_ERR(tpu->clk)) {  in tpu_probe()
405 		return PTR_ERR(tpu->clk);  in tpu_probe()
409 	platform_set_drvdata(pdev, tpu);  in tpu_probe()
411 	tpu->chip.dev = &pdev->dev;  in tpu_probe()
412 	tpu->chip.ops = &tpu_pwm_ops;  in tpu_probe()
413 	tpu->chip.of_xlate = of_pwm_xlate_with_flags;  in tpu_probe()
414 	tpu->chip.of_pwm_n_cells = 3;  in tpu_probe()
415 	tpu->chip.base = -1;  in tpu_probe()
416 	tpu->chip.npwm = TPU_CHANNEL_MAX;  in tpu_probe()
420 	ret = pwmchip_add(&tpu->chip);  in tpu_probe()
432 	struct tpu_device *tpu = platform_get_drvdata(pdev);  in tpu_remove()  local
435 	ret = pwmchip_remove(&tpu->chip);  in tpu_remove()
444 	{ .compatible = "renesas,tpu-r8a73a4", },
445 	{ .compatible = "renesas,tpu-r8a7740", },
446 	{ .compatible = "renesas,tpu-r8a7790", },
447 	{ .compatible = "renesas,tpu", },
458 		.name	= "renesas-tpu-pwm",
466 MODULE_DESCRIPTION("Renesas TPU PWM Driver");
468 MODULE_ALIAS("platform:renesas-tpu-pwm");