Merge branch 'v4.4/topic/ro-vdso' into linux-linaro-lsk-v4.4

[firefly-linux-kernel-4.4.55.git] / drivers / gpu / ipu-v3 / ipu-common.c

diff --git a/drivers/gpu/ipu-v3/ipu-common.c b/drivers/gpu/ipu-v3/ipu-common.c
index ba47b30d28fad4f3d187393a44a17bd9605f6ad4..a0e28f3a278deea575ad50a9342ff4a224e9d6cc 100644 (file)
--- a/drivers/gpu/ipu-v3/ipu-common.c
+++ b/drivers/gpu/ipu-v3/ipu-common.c
@@ -28,6 +28,7 @@
 #include <linux/irqchip/chained_irq.h>
 #include <linux/irqdomain.h>
 #include <linux/of_device.h>
+#include <linux/of_graph.h>
 
 #include <drm/drm_fourcc.h>
 
@@ -993,11 +994,25 @@ static void platform_device_unregister_children(struct platform_device *pdev)
 struct ipu_platform_reg {
        struct ipu_client_platformdata pdata;
        const char *name;
-       int reg_offset;
 };
 
+/* These must be in the order of the corresponding device tree port nodes */
 static const struct ipu_platform_reg client_reg[] = {
        {
+               .pdata = {
+                       .csi = 0,
+                       .dma[0] = IPUV3_CHANNEL_CSI0,
+                       .dma[1] = -EINVAL,
+               },
+               .name = "imx-ipuv3-camera",
+       }, {
+               .pdata = {
+                       .csi = 1,
+                       .dma[0] = IPUV3_CHANNEL_CSI1,
+                       .dma[1] = -EINVAL,
+               },
+               .name = "imx-ipuv3-camera",
+       }, {
                .pdata = {
                        .di = 0,
                        .dc = 5,
@@ -1015,22 +1030,6 @@ static const struct ipu_platform_reg client_reg[] = {
                        .dma[1] = -EINVAL,
                },
                .name = "imx-ipuv3-crtc",
-       }, {
-               .pdata = {
-                       .csi = 0,
-                       .dma[0] = IPUV3_CHANNEL_CSI0,
-                       .dma[1] = -EINVAL,
-               },
-               .reg_offset = IPU_CM_CSI0_REG_OFS,
-               .name = "imx-ipuv3-camera",
-       }, {
-               .pdata = {
-                       .csi = 1,
-                       .dma[0] = IPUV3_CHANNEL_CSI1,
-                       .dma[1] = -EINVAL,
-               },
-               .reg_offset = IPU_CM_CSI1_REG_OFS,
-               .name = "imx-ipuv3-camera",
        },
 };
 
@@ -1051,22 +1050,33 @@ static int ipu_add_client_devices(struct ipu_soc *ipu, unsigned long ipu_base)
        for (i = 0; i < ARRAY_SIZE(client_reg); i++) {
                const struct ipu_platform_reg *reg = &client_reg[i];
                struct platform_device *pdev;
-               struct resource res;
-
-               if (reg->reg_offset) {
-                       memset(&res, 0, sizeof(res));
-                       res.flags = IORESOURCE_MEM;
-                       res.start = ipu_base + ipu->devtype->cm_ofs + reg->reg_offset;
-                       res.end = res.start + PAGE_SIZE - 1;
-                       pdev = platform_device_register_resndata(dev, reg->name,
-                               id++, &res, 1, &reg->pdata, sizeof(reg->pdata));
-               } else {
-                       pdev = platform_device_register_data(dev, reg->name,
-                               id++, &reg->pdata, sizeof(reg->pdata));
+               struct device_node *of_node;
+
+               /* Associate subdevice with the corresponding port node */
+               of_node = of_graph_get_port_by_id(dev->of_node, i);
+               if (!of_node) {
+                       dev_info(dev,
+                                "no port@%d node in %s, not using %s%d\n",
+                                i, dev->of_node->full_name,
+                                (i / 2) ? "DI" : "CSI", i % 2);
+                       continue;
                }
 
-               if (IS_ERR(pdev)) {
-                       ret = PTR_ERR(pdev);
+               pdev = platform_device_alloc(reg->name, id++);
+               if (!pdev) {
+                       ret = -ENOMEM;
+                       goto err_register;
+               }
+
+               pdev->dev.of_node = of_node;
+               pdev->dev.parent = dev;
+
+               ret = platform_device_add_data(pdev, &reg->pdata,
+                                              sizeof(reg->pdata));
+               if (!ret)
+                       ret = platform_device_add(pdev);
+               if (ret) {
+                       platform_device_put(pdev);
                        goto err_register;
                }
        }