131 	struct tegra_mipi *mipi;  member
136 static inline u32 tegra_mipi_readl(struct tegra_mipi *mipi,  in tegra_mipi_readl()  argument
139 	return readl(mipi->regs + (offset << 2));  in tegra_mipi_readl()
142 static inline void tegra_mipi_writel(struct tegra_mipi *mipi, u32 value,  in tegra_mipi_writel()  argument
145 	writel(value, mipi->regs + (offset << 2));  in tegra_mipi_writel()
148 static int tegra_mipi_power_up(struct tegra_mipi *mipi)  in tegra_mipi_power_up()  argument
153 	err = clk_enable(mipi->clk);  in tegra_mipi_power_up()
157 	value = tegra_mipi_readl(mipi, MIPI_CAL_BIAS_PAD_CFG0);  in tegra_mipi_power_up()
160 	if (mipi->soc->needs_vclamp_ref)  in tegra_mipi_power_up()
163 	tegra_mipi_writel(mipi, value, MIPI_CAL_BIAS_PAD_CFG0);  in tegra_mipi_power_up()
165 	value = tegra_mipi_readl(mipi, MIPI_CAL_BIAS_PAD_CFG2);  in tegra_mipi_power_up()
167 	tegra_mipi_writel(mipi, value, MIPI_CAL_BIAS_PAD_CFG2);  in tegra_mipi_power_up()
169 	clk_disable(mipi->clk);  in tegra_mipi_power_up()
174 static int tegra_mipi_power_down(struct tegra_mipi *mipi)  in tegra_mipi_power_down()  argument
179 	err = clk_enable(mipi->clk);  in tegra_mipi_power_down()
188 	value = tegra_mipi_readl(mipi, MIPI_CAL_BIAS_PAD_CFG2);  in tegra_mipi_power_down()
190 	tegra_mipi_writel(mipi, value, MIPI_CAL_BIAS_PAD_CFG2);  in tegra_mipi_power_down()
198 	value = tegra_mipi_readl(mipi, MIPI_CAL_BIAS_PAD_CFG0);  in tegra_mipi_power_down()
200 	if (mipi->soc->needs_vclamp_ref)  in tegra_mipi_power_down()
204 	tegra_mipi_writel(mipi, value, MIPI_CAL_BIAS_PAD_CFG0);  in tegra_mipi_power_down()
234 	dev->mipi = platform_get_drvdata(dev->pdev);  in tegra_mipi_request()
235 	if (!dev->mipi) {  in tegra_mipi_request()
245 	mutex_lock(&dev->mipi->lock);  in tegra_mipi_request()
247 	if (dev->mipi->usage_count++ == 0) {  in tegra_mipi_request()
248 		err = tegra_mipi_power_up(dev->mipi);  in tegra_mipi_request()
250 			dev_err(dev->mipi->dev,  in tegra_mipi_request()
257 	mutex_unlock(&dev->mipi->lock);  in tegra_mipi_request()
275 	mutex_lock(&device->mipi->lock);  in tegra_mipi_free()
277 	if (--device->mipi->usage_count == 0) {  in tegra_mipi_free()
278 		err = tegra_mipi_power_down(device->mipi);  in tegra_mipi_free()
284 			dev_err(device->mipi->dev,  in tegra_mipi_free()
290 	mutex_unlock(&device->mipi->lock);  in tegra_mipi_free()
297 static int tegra_mipi_wait(struct tegra_mipi *mipi)  in tegra_mipi_wait()  argument
303 		value = tegra_mipi_readl(mipi, MIPI_CAL_STATUS);  in tegra_mipi_wait()
316 	const struct tegra_mipi_soc *soc = device->mipi->soc;  in tegra_mipi_calibrate()
321 	err = clk_enable(device->mipi->clk);  in tegra_mipi_calibrate()
325 	mutex_lock(&device->mipi->lock);  in tegra_mipi_calibrate()
329 	tegra_mipi_writel(device->mipi, value, MIPI_CAL_BIAS_PAD_CFG1);  in tegra_mipi_calibrate()
331 	value = tegra_mipi_readl(device->mipi, MIPI_CAL_BIAS_PAD_CFG2);  in tegra_mipi_calibrate()
336 	tegra_mipi_writel(device->mipi, value, MIPI_CAL_BIAS_PAD_CFG2);  in tegra_mipi_calibrate()
351 		tegra_mipi_writel(device->mipi, data, soc->pads[i].data);  in tegra_mipi_calibrate()
354 			tegra_mipi_writel(device->mipi, clk, soc->pads[i].clk);  in tegra_mipi_calibrate()
357 	value = tegra_mipi_readl(device->mipi, MIPI_CAL_CTRL);  in tegra_mipi_calibrate()
368 	tegra_mipi_writel(device->mipi, value, MIPI_CAL_CTRL);  in tegra_mipi_calibrate()
371 	value = tegra_mipi_readl(device->mipi, MIPI_CAL_STATUS);  in tegra_mipi_calibrate()
372 	tegra_mipi_writel(device->mipi, value, MIPI_CAL_STATUS);  in tegra_mipi_calibrate()
374 	value = tegra_mipi_readl(device->mipi, MIPI_CAL_CTRL);  in tegra_mipi_calibrate()
376 	tegra_mipi_writel(device->mipi, value, MIPI_CAL_CTRL);  in tegra_mipi_calibrate()
378 	err = tegra_mipi_wait(device->mipi);  in tegra_mipi_calibrate()
380 	mutex_unlock(&device->mipi->lock);  in tegra_mipi_calibrate()
381 	clk_disable(device->mipi->clk);  in tegra_mipi_calibrate()
501 	struct tegra_mipi *mipi;  in tegra_mipi_probe()  local
509 	mipi = devm_kzalloc(&pdev->dev, sizeof(*mipi), GFP_KERNEL);  in tegra_mipi_probe()
510 	if (!mipi)  in tegra_mipi_probe()
513 	mipi->soc = match->data;  in tegra_mipi_probe()
514 	mipi->dev = &pdev->dev;  in tegra_mipi_probe()
517 	mipi->regs = devm_ioremap_resource(&pdev->dev, res);  in tegra_mipi_probe()
518 	if (IS_ERR(mipi->regs))  in tegra_mipi_probe()
519 		return PTR_ERR(mipi->regs);  in tegra_mipi_probe()
521 	mutex_init(&mipi->lock);  in tegra_mipi_probe()
523 	mipi->clk = devm_clk_get(&pdev->dev, NULL);  in tegra_mipi_probe()
524 	if (IS_ERR(mipi->clk)) {  in tegra_mipi_probe()
526 		return PTR_ERR(mipi->clk);  in tegra_mipi_probe()
529 	err = clk_prepare(mipi->clk);  in tegra_mipi_probe()
533 	platform_set_drvdata(pdev, mipi);  in tegra_mipi_probe()
540 	struct tegra_mipi *mipi = platform_get_drvdata(pdev);  in tegra_mipi_remove()  local
542 	clk_unprepare(mipi->clk);  in tegra_mipi_remove()