1 // SPDX-License-Identifier: GPL-2.0-or-later
3  * Freescale Vybrid vf610 DAC driver
47 	info->conv_mode = VF610_DAC_CONV_LOW_POWER;  in vf610_dac_init()
50 	writel(val, info->regs + VF610_DACx_STATCTRL);  in vf610_dac_init()
57 	val = readl(info->regs + VF610_DACx_STATCTRL);  in vf610_dac_exit()
59 	writel(val, info->regs + VF610_DACx_STATCTRL);  in vf610_dac_exit()
64 				unsigned int mode)  in vf610_set_conversion_mode()  argument
69 	mutex_lock(&info->lock);  in vf610_set_conversion_mode()
70 	info->conv_mode = mode;  in vf610_set_conversion_mode()
71 	val = readl(info->regs + VF610_DACx_STATCTRL);  in vf610_set_conversion_mode()
72 	if (mode)  in vf610_set_conversion_mode()
76 	writel(val, info->regs + VF610_DACx_STATCTRL);  in vf610_set_conversion_mode()
77 	mutex_unlock(&info->lock);  in vf610_set_conversion_mode()
87 	return info->conv_mode;  in vf610_get_conversion_mode()
90 static const char * const vf610_conv_modes[] = { "high-power", "low-power" };
120 			long mask)  in vf610_read_raw()  argument
124 	switch (mask) {  in vf610_read_raw()
126 		*val = VF610_DAC_DAT0(readl(info->regs));  in vf610_read_raw()
139 		return -EINVAL;  in vf610_read_raw()
146 			long mask)  in vf610_write_raw()  argument
150 	switch (mask) {  in vf610_write_raw()
152 		mutex_lock(&info->lock);  in vf610_write_raw()
153 		writel(VF610_DAC_DAT0(val), info->regs);  in vf610_write_raw()
154 		mutex_unlock(&info->lock);  in vf610_write_raw()
158 		return -EINVAL;  in vf610_write_raw()
168 	{ .compatible = "fsl,vf610-dac", },
179 	indio_dev = devm_iio_device_alloc(&pdev->dev,  in vf610_dac_probe()
182 		return -ENOMEM;  in vf610_dac_probe()
185 	info->dev = &pdev->dev;  in vf610_dac_probe()
187 	info->regs = devm_platform_ioremap_resource(pdev, 0);  in vf610_dac_probe()
188 	if (IS_ERR(info->regs))  in vf610_dac_probe()
189 		return PTR_ERR(info->regs);  in vf610_dac_probe()
191 	info->clk = devm_clk_get_enabled(&pdev->dev, "dac");  in vf610_dac_probe()
192 	if (IS_ERR(info->clk))  in vf610_dac_probe()
193 		return dev_err_probe(&pdev->dev, PTR_ERR(info->clk),  in vf610_dac_probe()
198 	indio_dev->name = dev_name(&pdev->dev);  in vf610_dac_probe()
199 	indio_dev->info = &vf610_dac_iio_info;  in vf610_dac_probe()
200 	indio_dev->modes = INDIO_DIRECT_MODE;  in vf610_dac_probe()
201 	indio_dev->channels = vf610_dac_iio_channels;  in vf610_dac_probe()
202 	indio_dev->num_channels = ARRAY_SIZE(vf610_dac_iio_channels);  in vf610_dac_probe()
204 	mutex_init(&info->lock);  in vf610_dac_probe()
210 		dev_err(&pdev->dev, "Couldn't register the device\n");  in vf610_dac_probe()
237 	clk_disable_unprepare(info->clk);  in vf610_dac_suspend()
248 	ret = clk_prepare_enable(info->clk);  in vf610_dac_resume()
264 		.name   = "vf610-dac",
272 MODULE_DESCRIPTION("Freescale VF610 DAC driver");