+++ /dev/null
-From 3fdffbb253cc8738bee0860f58de9ebd099afab1 Mon Sep 17 00:00:00 2001
-From: Eric Anholt <eric@anholt.net>
-Date: Wed, 10 Feb 2016 11:42:32 -0800
-Subject: [PATCH] drm/vc4: Add DPI driver
-
-The DPI interface involves taking a ton of our GPIOs to be used as
-outputs, and routing display signals over them in parallel.
-
-v2: Use display_info.bus_formats[] to replace our custom DT
- properties.
-v3: Rebase on V3D documentation changes.
-v4: Fix rebase detritus from V3D documentation changes.
-
-Signed-off-by: Eric Anholt <eric@anholt.net>
-Acked-by: Rob Herring <robh@kernel.org>
-(cherry picked from commit 08302c35b59d306ff37b996e56fb2a488c1d2c2e)
----
- .../devicetree/bindings/display/brcm,bcm-vc4.txt | 36 ++
- drivers/gpu/drm/vc4/Kconfig | 1 +
- drivers/gpu/drm/vc4/Makefile | 1 +
- drivers/gpu/drm/vc4/vc4_debugfs.c | 1 +
- drivers/gpu/drm/vc4/vc4_dpi.c | 520 +++++++++++++++++++++
- drivers/gpu/drm/vc4/vc4_drv.c | 1 +
- drivers/gpu/drm/vc4/vc4_drv.h | 5 +
- 7 files changed, 565 insertions(+)
- create mode 100644 drivers/gpu/drm/vc4/vc4_dpi.c
-
---- a/Documentation/devicetree/bindings/display/brcm,bcm-vc4.txt
-+++ b/Documentation/devicetree/bindings/display/brcm,bcm-vc4.txt
-@@ -35,12 +35,22 @@ Optional properties for HDMI:
- as an interrupt/status bit in the HDMI controller
- itself). See bindings/pinctrl/brcm,bcm2835-gpio.txt
-
-+Required properties for DPI:
-+- compatible: Should be "brcm,bcm2835-dpi"
-+- reg: Physical base address and length of the registers
-+- clocks: a) core: The core clock the unit runs on
-+ b) pixel: The pixel clock that feeds the pixelvalve
-+- port: Port node with a single endpoint connecting to the panel
-+ device, as defined in [1]
-+
- Required properties for V3D:
- - compatible: Should be "brcm,bcm2835-v3d"
- - reg: Physical base address and length of the V3D's registers
- - interrupts: The interrupt number
- See bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt
-
-+[1] Documentation/devicetree/bindings/media/video-interfaces.txt
-+
- Example:
- pixelvalve@7e807000 {
- compatible = "brcm,bcm2835-pixelvalve2";
-@@ -66,6 +76,22 @@ hdmi: hdmi@7e902000 {
- clock-names = "pixel", "hdmi";
- };
-
-+dpi: dpi@7e208000 {
-+ compatible = "brcm,bcm2835-dpi";
-+ reg = <0x7e208000 0x8c>;
-+ clocks = <&clocks BCM2835_CLOCK_VPU>,
-+ <&clocks BCM2835_CLOCK_DPI>;
-+ clock-names = "core", "pixel";
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+
-+ port {
-+ dpi_out: endpoint@0 {
-+ remote-endpoint = <&panel_in>;
-+ };
-+ };
-+};
-+
- v3d: v3d@7ec00000 {
- compatible = "brcm,bcm2835-v3d";
- reg = <0x7ec00000 0x1000>;
-@@ -75,3 +101,13 @@ v3d: v3d@7ec00000 {
- vc4: gpu {
- compatible = "brcm,bcm2835-vc4";
- };
-+
-+panel: panel {
-+ compatible = "ontat,yx700wv03", "simple-panel";
-+
-+ port {
-+ panel_in: endpoint {
-+ remote-endpoint = <&dpi_out>;
-+ };
-+ };
-+};
---- a/drivers/gpu/drm/vc4/Kconfig
-+++ b/drivers/gpu/drm/vc4/Kconfig
-@@ -5,6 +5,7 @@ config DRM_VC4
- select DRM_KMS_HELPER
- select DRM_KMS_CMA_HELPER
- select DRM_GEM_CMA_HELPER
-+ select DRM_PANEL
- help
- Choose this option if you have a system that has a Broadcom
- VC4 GPU, such as the Raspberry Pi or other BCM2708/BCM2835.
---- a/drivers/gpu/drm/vc4/Makefile
-+++ b/drivers/gpu/drm/vc4/Makefile
-@@ -7,6 +7,7 @@ vc4-y := \
- vc4_bo.o \
- vc4_crtc.o \
- vc4_drv.o \
-+ vc4_dpi.o \
- vc4_kms.o \
- vc4_gem.o \
- vc4_hdmi.o \
---- a/drivers/gpu/drm/vc4/vc4_debugfs.c
-+++ b/drivers/gpu/drm/vc4/vc4_debugfs.c
-@@ -17,6 +17,7 @@
-
- static const struct drm_info_list vc4_debugfs_list[] = {
- {"bo_stats", vc4_bo_stats_debugfs, 0},
-+ {"dpi_regs", vc4_dpi_debugfs_regs, 0},
- {"gem_exec", vc4_gem_exec_debugfs, 0},
- {"hdmi_regs", vc4_hdmi_debugfs_regs, 0},
- {"hvs_regs", vc4_hvs_debugfs_regs, 0},
---- /dev/null
-+++ b/drivers/gpu/drm/vc4/vc4_dpi.c
-@@ -0,0 +1,520 @@
-+/*
-+ * Copyright (C) 2016 Broadcom Limited
-+ *
-+ * This program is free software; you can redistribute it and/or modify it
-+ * under the terms of the GNU General Public License version 2 as published by
-+ * the Free Software Foundation.
-+ *
-+ * This program is distributed in the hope that it will be useful, but WITHOUT
-+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-+ * more details.
-+ *
-+ * You should have received a copy of the GNU General Public License along with
-+ * this program. If not, see <http://www.gnu.org/licenses/>.
-+ */
-+
-+/**
-+ * DOC: VC4 DPI module
-+ *
-+ * The VC4 DPI hardware supports MIPI DPI type 4 and Nokia ViSSI
-+ * signals, which are routed out to GPIO0-27 with the ALT2 function.
-+ */
-+
-+#include "drm_atomic_helper.h"
-+#include "drm_crtc_helper.h"
-+#include "drm_edid.h"
-+#include "drm_panel.h"
-+#include "linux/clk.h"
-+#include "linux/component.h"
-+#include "linux/of_graph.h"
-+#include "linux/of_platform.h"
-+#include "vc4_drv.h"
-+#include "vc4_regs.h"
-+
-+#define DPI_C 0x00
-+# define DPI_OUTPUT_ENABLE_MODE BIT(16)
-+
-+/* The order field takes the incoming 24 bit RGB from the pixel valve
-+ * and shuffles the 3 channels.
-+ */
-+# define DPI_ORDER_MASK VC4_MASK(15, 14)
-+# define DPI_ORDER_SHIFT 14
-+# define DPI_ORDER_RGB 0
-+# define DPI_ORDER_BGR 1
-+# define DPI_ORDER_GRB 2
-+# define DPI_ORDER_BRG 3
-+
-+/* The format field takes the ORDER-shuffled pixel valve data and
-+ * formats it onto the output lines.
-+ */
-+# define DPI_FORMAT_MASK VC4_MASK(13, 11)
-+# define DPI_FORMAT_SHIFT 11
-+/* This define is named in the hardware, but actually just outputs 0. */
-+# define DPI_FORMAT_9BIT_666_RGB 0
-+/* Outputs 00000000rrrrrggggggbbbbb */
-+# define DPI_FORMAT_16BIT_565_RGB_1 1
-+/* Outputs 000rrrrr00gggggg000bbbbb */
-+# define DPI_FORMAT_16BIT_565_RGB_2 2
-+/* Outputs 00rrrrr000gggggg00bbbbb0 */
-+# define DPI_FORMAT_16BIT_565_RGB_3 3
-+/* Outputs 000000rrrrrrggggggbbbbbb */
-+# define DPI_FORMAT_18BIT_666_RGB_1 4
-+/* Outputs 00rrrrrr00gggggg00bbbbbb */
-+# define DPI_FORMAT_18BIT_666_RGB_2 5
-+/* Outputs rrrrrrrrggggggggbbbbbbbb */
-+# define DPI_FORMAT_24BIT_888_RGB 6
-+
-+/* Reverses the polarity of the corresponding signal */
-+# define DPI_PIXEL_CLK_INVERT BIT(10)
-+# define DPI_HSYNC_INVERT BIT(9)
-+# define DPI_VSYNC_INVERT BIT(8)
-+# define DPI_OUTPUT_ENABLE_INVERT BIT(7)
-+
-+/* Outputs the signal the falling clock edge instead of rising. */
-+# define DPI_HSYNC_NEGATE BIT(6)
-+# define DPI_VSYNC_NEGATE BIT(5)
-+# define DPI_OUTPUT_ENABLE_NEGATE BIT(4)
-+
-+/* Disables the signal */
-+# define DPI_HSYNC_DISABLE BIT(3)
-+# define DPI_VSYNC_DISABLE BIT(2)
-+# define DPI_OUTPUT_ENABLE_DISABLE BIT(1)
-+
-+/* Power gate to the device, full reset at 0 -> 1 transition */
-+# define DPI_ENABLE BIT(0)
-+
-+/* All other registers besides DPI_C return the ID */
-+#define DPI_ID 0x04
-+# define DPI_ID_VALUE 0x00647069
-+
-+/* General DPI hardware state. */
-+struct vc4_dpi {
-+ struct platform_device *pdev;
-+
-+ struct drm_encoder *encoder;
-+ struct drm_connector *connector;
-+ struct drm_panel *panel;
-+
-+ void __iomem *regs;
-+
-+ struct clk *pixel_clock;
-+ struct clk *core_clock;
-+};
-+
-+#define DPI_READ(offset) readl(dpi->regs + (offset))
-+#define DPI_WRITE(offset, val) writel(val, dpi->regs + (offset))
-+
-+/* VC4 DPI encoder KMS struct */
-+struct vc4_dpi_encoder {
-+ struct vc4_encoder base;
-+ struct vc4_dpi *dpi;
-+};
-+
-+static inline struct vc4_dpi_encoder *
-+to_vc4_dpi_encoder(struct drm_encoder *encoder)
-+{
-+ return container_of(encoder, struct vc4_dpi_encoder, base.base);
-+}
-+
-+/* VC4 DPI connector KMS struct */
-+struct vc4_dpi_connector {
-+ struct drm_connector base;
-+ struct vc4_dpi *dpi;
-+
-+ /* Since the connector is attached to just the one encoder,
-+ * this is the reference to it so we can do the best_encoder()
-+ * hook.
-+ */
-+ struct drm_encoder *encoder;
-+};
-+
-+static inline struct vc4_dpi_connector *
-+to_vc4_dpi_connector(struct drm_connector *connector)
-+{
-+ return container_of(connector, struct vc4_dpi_connector, base);
-+}
-+
-+#define DPI_REG(reg) { reg, #reg }
-+static const struct {
-+ u32 reg;
-+ const char *name;
-+} dpi_regs[] = {
-+ DPI_REG(DPI_C),
-+ DPI_REG(DPI_ID),
-+};
-+
-+static void vc4_dpi_dump_regs(struct vc4_dpi *dpi)
-+{
-+ int i;
-+
-+ for (i = 0; i < ARRAY_SIZE(dpi_regs); i++) {
-+ DRM_INFO("0x%04x (%s): 0x%08x\n",
-+ dpi_regs[i].reg, dpi_regs[i].name,
-+ DPI_READ(dpi_regs[i].reg));
-+ }
-+}
-+
-+#ifdef CONFIG_DEBUG_FS
-+int vc4_dpi_debugfs_regs(struct seq_file *m, void *unused)
-+{
-+ struct drm_info_node *node = (struct drm_info_node *)m->private;
-+ struct drm_device *dev = node->minor->dev;
-+ struct vc4_dev *vc4 = to_vc4_dev(dev);
-+ struct vc4_dpi *dpi = vc4->dpi;
-+ int i;
-+
-+ if (!dpi)
-+ return 0;
-+
-+ for (i = 0; i < ARRAY_SIZE(dpi_regs); i++) {
-+ seq_printf(m, "%s (0x%04x): 0x%08x\n",
-+ dpi_regs[i].name, dpi_regs[i].reg,
-+ DPI_READ(dpi_regs[i].reg));
-+ }
-+
-+ return 0;
-+}
-+#endif
-+
-+static enum drm_connector_status
-+vc4_dpi_connector_detect(struct drm_connector *connector, bool force)
-+{
-+ struct vc4_dpi_connector *vc4_connector =
-+ to_vc4_dpi_connector(connector);
-+ struct vc4_dpi *dpi = vc4_connector->dpi;
-+
-+ if (dpi->panel)
-+ return connector_status_connected;
-+ else
-+ return connector_status_disconnected;
-+}
-+
-+static void vc4_dpi_connector_destroy(struct drm_connector *connector)
-+{
-+ drm_connector_unregister(connector);
-+ drm_connector_cleanup(connector);
-+}
-+
-+static int vc4_dpi_connector_get_modes(struct drm_connector *connector)
-+{
-+ struct vc4_dpi_connector *vc4_connector =
-+ to_vc4_dpi_connector(connector);
-+ struct vc4_dpi *dpi = vc4_connector->dpi;
-+
-+ if (dpi->panel)
-+ return drm_panel_get_modes(dpi->panel);
-+
-+ return 0;
-+}
-+
-+static struct drm_encoder *
-+vc4_dpi_connector_best_encoder(struct drm_connector *connector)
-+{
-+ struct vc4_dpi_connector *dpi_connector =
-+ to_vc4_dpi_connector(connector);
-+ return dpi_connector->encoder;
-+}
-+
-+static const struct drm_connector_funcs vc4_dpi_connector_funcs = {
-+ .dpms = drm_atomic_helper_connector_dpms,
-+ .detect = vc4_dpi_connector_detect,
-+ .fill_modes = drm_helper_probe_single_connector_modes,
-+ .destroy = vc4_dpi_connector_destroy,
-+ .reset = drm_atomic_helper_connector_reset,
-+ .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
-+ .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
-+};
-+
-+static const struct drm_connector_helper_funcs vc4_dpi_connector_helper_funcs = {
-+ .get_modes = vc4_dpi_connector_get_modes,
-+ .best_encoder = vc4_dpi_connector_best_encoder,
-+};
-+
-+static struct drm_connector *vc4_dpi_connector_init(struct drm_device *dev,
-+ struct vc4_dpi *dpi)
-+{
-+ struct drm_connector *connector = NULL;
-+ struct vc4_dpi_connector *dpi_connector;
-+ int ret = 0;
-+
-+ dpi_connector = devm_kzalloc(dev->dev, sizeof(*dpi_connector),
-+ GFP_KERNEL);
-+ if (!dpi_connector) {
-+ ret = -ENOMEM;
-+ goto fail;
-+ }
-+ connector = &dpi_connector->base;
-+
-+ dpi_connector->encoder = dpi->encoder;
-+ dpi_connector->dpi = dpi;
-+
-+ drm_connector_init(dev, connector, &vc4_dpi_connector_funcs,
-+ DRM_MODE_CONNECTOR_DPI);
-+ drm_connector_helper_add(connector, &vc4_dpi_connector_helper_funcs);
-+
-+ connector->polled = 0;
-+ connector->interlace_allowed = 0;
-+ connector->doublescan_allowed = 0;
-+
-+ drm_mode_connector_attach_encoder(connector, dpi->encoder);
-+
-+ return connector;
-+
-+ fail:
-+ if (connector)
-+ vc4_dpi_connector_destroy(connector);
-+
-+ return ERR_PTR(ret);
-+}
-+
-+static const struct drm_encoder_funcs vc4_dpi_encoder_funcs = {
-+ .destroy = drm_encoder_cleanup,
-+};
-+
-+static void vc4_dpi_encoder_disable(struct drm_encoder *encoder)
-+{
-+ struct vc4_dpi_encoder *vc4_encoder = to_vc4_dpi_encoder(encoder);
-+ struct vc4_dpi *dpi = vc4_encoder->dpi;
-+
-+ drm_panel_disable(dpi->panel);
-+
-+ clk_disable_unprepare(dpi->pixel_clock);
-+
-+ drm_panel_unprepare(dpi->panel);
-+}
-+
-+static void vc4_dpi_encoder_enable(struct drm_encoder *encoder)
-+{
-+ struct drm_display_mode *mode = &encoder->crtc->mode;
-+ struct vc4_dpi_encoder *vc4_encoder = to_vc4_dpi_encoder(encoder);
-+ struct vc4_dpi *dpi = vc4_encoder->dpi;
-+ u32 dpi_c = DPI_ENABLE | DPI_OUTPUT_ENABLE_MODE;
-+ int ret;
-+
-+ ret = drm_panel_prepare(dpi->panel);
-+ if (ret) {
-+ DRM_ERROR("Panel failed to prepare\n");
-+ return;
-+ }
-+
-+ if (dpi->connector->display_info.num_bus_formats) {
-+ u32 bus_format = dpi->connector->display_info.bus_formats[0];
-+
-+ switch (bus_format) {
-+ case MEDIA_BUS_FMT_RGB888_1X24:
-+ dpi_c |= VC4_SET_FIELD(DPI_FORMAT_24BIT_888_RGB,
-+ DPI_FORMAT);
-+ break;
-+ case MEDIA_BUS_FMT_BGR888_1X24:
-+ dpi_c |= VC4_SET_FIELD(DPI_FORMAT_24BIT_888_RGB,
-+ DPI_FORMAT);
-+ dpi_c |= VC4_SET_FIELD(DPI_ORDER_BGR, DPI_ORDER);
-+ break;
-+ case MEDIA_BUS_FMT_RGB666_1X24_CPADHI:
-+ dpi_c |= VC4_SET_FIELD(DPI_FORMAT_18BIT_666_RGB_2,
-+ DPI_FORMAT);
-+ break;
-+ case MEDIA_BUS_FMT_RGB666_1X18:
-+ dpi_c |= VC4_SET_FIELD(DPI_FORMAT_18BIT_666_RGB_1,
-+ DPI_FORMAT);
-+ break;
-+ case MEDIA_BUS_FMT_RGB565_1X16:
-+ dpi_c |= VC4_SET_FIELD(DPI_FORMAT_16BIT_565_RGB_3,
-+ DPI_FORMAT);
-+ break;
-+ default:
-+ DRM_ERROR("Unknown media bus format %d\n", bus_format);
-+ break;
-+ }
-+ }
-+
-+ if (mode->flags & DRM_MODE_FLAG_NHSYNC)
-+ dpi_c |= DPI_HSYNC_INVERT;
-+ else if (!(mode->flags & DRM_MODE_FLAG_PHSYNC))
-+ dpi_c |= DPI_HSYNC_DISABLE;
-+
-+ if (mode->flags & DRM_MODE_FLAG_NVSYNC)
-+ dpi_c |= DPI_VSYNC_INVERT;
-+ else if (!(mode->flags & DRM_MODE_FLAG_PVSYNC))
-+ dpi_c |= DPI_VSYNC_DISABLE;
-+
-+ DPI_WRITE(DPI_C, dpi_c);
-+
-+ ret = clk_set_rate(dpi->pixel_clock, mode->clock * 1000);
-+ if (ret)
-+ DRM_ERROR("Failed to set clock rate: %d\n", ret);
-+
-+ ret = clk_prepare_enable(dpi->pixel_clock);
-+ if (ret)
-+ DRM_ERROR("Failed to set clock rate: %d\n", ret);
-+
-+ ret = drm_panel_enable(dpi->panel);
-+ if (ret) {
-+ DRM_ERROR("Panel failed to enable\n");
-+ drm_panel_unprepare(dpi->panel);
-+ return;
-+ }
-+}
-+
-+static const struct drm_encoder_helper_funcs vc4_dpi_encoder_helper_funcs = {
-+ .disable = vc4_dpi_encoder_disable,
-+ .enable = vc4_dpi_encoder_enable,
-+};
-+
-+static const struct of_device_id vc4_dpi_dt_match[] = {
-+ { .compatible = "brcm,bcm2835-dpi", .data = NULL },
-+ {}
-+};
-+
-+/* Walks the OF graph to find the panel node and then asks DRM to look
-+ * up the panel.
-+ */
-+static struct drm_panel *vc4_dpi_get_panel(struct device *dev)
-+{
-+ struct device_node *endpoint, *panel_node;
-+ struct device_node *np = dev->of_node;
-+ struct drm_panel *panel;
-+
-+ endpoint = of_graph_get_next_endpoint(np, NULL);
-+ if (!endpoint) {
-+ dev_err(dev, "no endpoint to fetch DPI panel\n");
-+ return NULL;
-+ }
-+
-+ /* don't proceed if we have an endpoint but no panel_node tied to it */
-+ panel_node = of_graph_get_remote_port_parent(endpoint);
-+ of_node_put(endpoint);
-+ if (!panel_node) {
-+ dev_err(dev, "no valid panel node\n");
-+ return NULL;
-+ }
-+
-+ panel = of_drm_find_panel(panel_node);
-+ of_node_put(panel_node);
-+
-+ return panel;
-+}
-+
-+static int vc4_dpi_bind(struct device *dev, struct device *master, void *data)
-+{
-+ struct platform_device *pdev = to_platform_device(dev);
-+ struct drm_device *drm = dev_get_drvdata(master);
-+ struct vc4_dev *vc4 = to_vc4_dev(drm);
-+ struct vc4_dpi *dpi;
-+ struct vc4_dpi_encoder *vc4_dpi_encoder;
-+ int ret;
-+
-+ dpi = devm_kzalloc(dev, sizeof(*dpi), GFP_KERNEL);
-+ if (!dpi)
-+ return -ENOMEM;
-+
-+ vc4_dpi_encoder = devm_kzalloc(dev, sizeof(*vc4_dpi_encoder),
-+ GFP_KERNEL);
-+ if (!vc4_dpi_encoder)
-+ return -ENOMEM;
-+ vc4_dpi_encoder->base.type = VC4_ENCODER_TYPE_DPI;
-+ vc4_dpi_encoder->dpi = dpi;
-+ dpi->encoder = &vc4_dpi_encoder->base.base;
-+
-+ dpi->pdev = pdev;
-+ dpi->regs = vc4_ioremap_regs(pdev, 0);
-+ if (IS_ERR(dpi->regs))
-+ return PTR_ERR(dpi->regs);
-+
-+ vc4_dpi_dump_regs(dpi);
-+
-+ if (DPI_READ(DPI_ID) != DPI_ID_VALUE) {
-+ dev_err(dev, "Port returned 0x%08x for ID instead of 0x%08x\n",
-+ DPI_READ(DPI_ID), DPI_ID_VALUE);
-+ return -ENODEV;
-+ }
-+
-+ dpi->core_clock = devm_clk_get(dev, "core");
-+ if (IS_ERR(dpi->core_clock)) {
-+ ret = PTR_ERR(dpi->core_clock);
-+ if (ret != -EPROBE_DEFER)
-+ DRM_ERROR("Failed to get core clock: %d\n", ret);
-+ return ret;
-+ }
-+ dpi->pixel_clock = devm_clk_get(dev, "pixel");
-+ if (IS_ERR(dpi->pixel_clock)) {
-+ ret = PTR_ERR(dpi->pixel_clock);
-+ if (ret != -EPROBE_DEFER)
-+ DRM_ERROR("Failed to get pixel clock: %d\n", ret);
-+ return ret;
-+ }
-+
-+ ret = clk_prepare_enable(dpi->core_clock);
-+ if (ret)
-+ DRM_ERROR("Failed to turn on core clock: %d\n", ret);
-+
-+ dpi->panel = vc4_dpi_get_panel(dev);
-+
-+ drm_encoder_init(drm, dpi->encoder, &vc4_dpi_encoder_funcs,
-+ DRM_MODE_ENCODER_DPI);
-+ drm_encoder_helper_add(dpi->encoder, &vc4_dpi_encoder_helper_funcs);
-+
-+ dpi->connector = vc4_dpi_connector_init(drm, dpi);
-+ if (IS_ERR(dpi->connector)) {
-+ ret = PTR_ERR(dpi->connector);
-+ goto err_destroy_encoder;
-+ }
-+
-+ if (dpi->panel)
-+ drm_panel_attach(dpi->panel, dpi->connector);
-+
-+ dev_set_drvdata(dev, dpi);
-+
-+ vc4->dpi = dpi;
-+
-+ return 0;
-+
-+err_destroy_encoder:
-+ drm_encoder_cleanup(dpi->encoder);
-+ clk_disable_unprepare(dpi->core_clock);
-+ return ret;
-+}
-+
-+static void vc4_dpi_unbind(struct device *dev, struct device *master,
-+ void *data)
-+{
-+ struct drm_device *drm = dev_get_drvdata(master);
-+ struct vc4_dev *vc4 = to_vc4_dev(drm);
-+ struct vc4_dpi *dpi = dev_get_drvdata(dev);
-+
-+ if (dpi->panel)
-+ drm_panel_detach(dpi->panel);
-+
-+ vc4_dpi_connector_destroy(dpi->connector);
-+ drm_encoder_cleanup(dpi->encoder);
-+
-+ clk_disable_unprepare(dpi->core_clock);
-+
-+ vc4->dpi = NULL;
-+}
-+
-+static const struct component_ops vc4_dpi_ops = {
-+ .bind = vc4_dpi_bind,
-+ .unbind = vc4_dpi_unbind,
-+};
-+
-+static int vc4_dpi_dev_probe(struct platform_device *pdev)
-+{
-+ return component_add(&pdev->dev, &vc4_dpi_ops);
-+}
-+
-+static int vc4_dpi_dev_remove(struct platform_device *pdev)
-+{
-+ component_del(&pdev->dev, &vc4_dpi_ops);
-+ return 0;
-+}
-+
-+struct platform_driver vc4_dpi_driver = {
-+ .probe = vc4_dpi_dev_probe,
-+ .remove = vc4_dpi_dev_remove,
-+ .driver = {
-+ .name = "vc4_dpi",
-+ .of_match_table = vc4_dpi_dt_match,
-+ },
-+};
---- a/drivers/gpu/drm/vc4/vc4_drv.c
-+++ b/drivers/gpu/drm/vc4/vc4_drv.c
-@@ -259,6 +259,7 @@ static const struct component_master_ops
-
- static struct platform_driver *const component_drivers[] = {
- &vc4_hdmi_driver,
-+ &vc4_dpi_driver,
- &vc4_crtc_driver,
- &vc4_hvs_driver,
- &vc4_v3d_driver,
---- a/drivers/gpu/drm/vc4/vc4_drv.h
-+++ b/drivers/gpu/drm/vc4/vc4_drv.h
-@@ -16,6 +16,7 @@ struct vc4_dev {
- struct vc4_hvs *hvs;
- struct vc4_crtc *crtc[3];
- struct vc4_v3d *v3d;
-+ struct vc4_dpi *dpi;
-
- struct drm_fbdev_cma *fbdev;
- struct rpi_firmware *firmware;
-@@ -418,6 +419,10 @@ void vc4_debugfs_cleanup(struct drm_mino
- /* vc4_drv.c */
- void __iomem *vc4_ioremap_regs(struct platform_device *dev, int index);
-
-+/* vc4_dpi.c */
-+extern struct platform_driver vc4_dpi_driver;
-+int vc4_dpi_debugfs_regs(struct seq_file *m, void *unused);
-+
- /* vc4_gem.c */
- void vc4_gem_init(struct drm_device *dev);
- void vc4_gem_destroy(struct drm_device *dev);
projects / openwrt / staging / yousong.git / blobdiff