7  * DOC: VC4 DPI module
9  * The VC4 DPI hardware supports MIPI DPI type 4 and Nokia ViSSI
84 /* General DPI hardware state. */
98 #define DPI_READ(offset) readl(dpi->regs + (offset))
99 #define DPI_WRITE(offset, val) writel(val, dpi->regs + (offset))
101 /* VC4 DPI encoder KMS struct */
104 	struct vc4_dpi *dpi;  member
121 	struct vc4_dpi *dpi = vc4_encoder->dpi;  in vc4_dpi_encoder_disable()  local
123 	clk_disable_unprepare(dpi->pixel_clock);  in vc4_dpi_encoder_disable()
131 	struct vc4_dpi *dpi = vc4_encoder->dpi;  in vc4_dpi_encoder_enable()  local
137 	/* Look up the connector attached to DPI so we can get the  in vc4_dpi_encoder_enable()
197 	ret = clk_set_rate(dpi->pixel_clock, mode->clock * 1000);  in vc4_dpi_encoder_enable()
201 	ret = clk_prepare_enable(dpi->pixel_clock);  in vc4_dpi_encoder_enable()
222 	{ .compatible = "brcm,bcm2835-dpi", .data = NULL },
229 static int vc4_dpi_init_bridge(struct vc4_dpi *dpi)  in vc4_dpi_init_bridge()  argument
231 	struct device *dev = &dpi->pdev->dev;  in vc4_dpi_init_bridge()
252 	return drm_bridge_attach(dpi->encoder, bridge, NULL, 0);  in vc4_dpi_init_bridge()
260 	struct vc4_dpi *dpi;  in vc4_dpi_bind()  local
264 	dpi = devm_kzalloc(dev, sizeof(*dpi), GFP_KERNEL);  in vc4_dpi_bind()
265 	if (!dpi)  in vc4_dpi_bind()
273 	vc4_dpi_encoder->dpi = dpi;  in vc4_dpi_bind()
274 	dpi->encoder = &vc4_dpi_encoder->base.base;  in vc4_dpi_bind()
276 	dpi->pdev = pdev;  in vc4_dpi_bind()
277 	dpi->regs = vc4_ioremap_regs(pdev, 0);  in vc4_dpi_bind()
278 	if (IS_ERR(dpi->regs))  in vc4_dpi_bind()
279 		return PTR_ERR(dpi->regs);  in vc4_dpi_bind()
280 	dpi->regset.base = dpi->regs;  in vc4_dpi_bind()
281 	dpi->regset.regs = dpi_regs;  in vc4_dpi_bind()
282 	dpi->regset.nregs = ARRAY_SIZE(dpi_regs);  in vc4_dpi_bind()
290 	dpi->core_clock = devm_clk_get(dev, "core");  in vc4_dpi_bind()
291 	if (IS_ERR(dpi->core_clock)) {  in vc4_dpi_bind()
292 		ret = PTR_ERR(dpi->core_clock);  in vc4_dpi_bind()
297 	dpi->pixel_clock = devm_clk_get(dev, "pixel");  in vc4_dpi_bind()
298 	if (IS_ERR(dpi->pixel_clock)) {  in vc4_dpi_bind()
299 		ret = PTR_ERR(dpi->pixel_clock);  in vc4_dpi_bind()
305 	ret = clk_prepare_enable(dpi->core_clock);  in vc4_dpi_bind()
309 	drm_simple_encoder_init(drm, dpi->encoder, DRM_MODE_ENCODER_DPI);  in vc4_dpi_bind()
310 	drm_encoder_helper_add(dpi->encoder, &vc4_dpi_encoder_helper_funcs);  in vc4_dpi_bind()
312 	ret = vc4_dpi_init_bridge(dpi);  in vc4_dpi_bind()
316 	dev_set_drvdata(dev, dpi);  in vc4_dpi_bind()
318 	vc4->dpi = dpi;  in vc4_dpi_bind()
320 	vc4_debugfs_add_regset32(drm, "dpi_regs", &dpi->regset);  in vc4_dpi_bind()
325 	drm_encoder_cleanup(dpi->encoder);  in vc4_dpi_bind()
326 	clk_disable_unprepare(dpi->core_clock);  in vc4_dpi_bind()
335 	struct vc4_dpi *dpi = dev_get_drvdata(dev);  in vc4_dpi_unbind()  local
339 	drm_encoder_cleanup(dpi->encoder);  in vc4_dpi_unbind()
341 	clk_disable_unprepare(dpi->core_clock);  in vc4_dpi_unbind()
343 	vc4->dpi = NULL;  in vc4_dpi_unbind()