+ /* prepare fallback resource */
+ memcpy(&fb_res, mpp_res, sizeof(struct resource));
+ fb_res.start = 0;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ if (!res) {
+ dev_warn(&pdev->dev, "falling back to hardcoded MPP4 resource\n");
+ adjust_resource(&fb_res,
+ (mpp_res->start & INT_REGS_MASK) + MPP4_REGS_OFFS, 0x4);
+ res = &fb_res;
+ }
+
+ mpp4_base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(mpp4_base))
+ return PTR_ERR(mpp4_base);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 2);
+ if (!res) {
+ dev_warn(&pdev->dev, "falling back to hardcoded PMU resource\n");
+ adjust_resource(&fb_res,
+ (mpp_res->start & INT_REGS_MASK) + PMU_REGS_OFFS, 0x8);
+ res = &fb_res;
+ }
+
+ pmu_base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(pmu_base))
+ return PTR_ERR(pmu_base);
+
+ /* Warn on any missing DT resource */
+ WARN(fb_res.start, FW_BUG "Missing pinctrl regs in DTB. Please update your firmware.\n");
+