linux-kernel - [PATCH 9/9] Revert "PCI: brcmstb: Wait for Raspberry Pi's firmware when present"

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Date:   Mon,  8 Jun 2020 21:27:01 +0200
From:   Nicolas Saenz Julienne <nsaenzjulienne@...e.de>
To:     f.fainelli@...il.com, gregkh@...uxfoundation.org, wahrenst@....net,
        robh@...nel.org, mathias.nyman@...ux.intel.com,
        Eric Anholt <eric@...olt.net>,
        bcm-kernel-feedback-list@...adcom.com,
        linux-rpi-kernel@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-pci@...r.kernel.org, linux-usb@...r.kernel.org,
        Nicolas Saenz Julienne <nsaenzjulienne@...e.de>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>
Cc:     linux-kernel@...r.kernel.org, tim.gover@...pberrypi.org,
        helgaas@...nel.org, Bjorn Helgaas <bhelgaas@...gle.com>
Subject: [PATCH 9/9] Revert "PCI: brcmstb: Wait for Raspberry Pi's firmware when present"

This reverts commit 44331189f9082c7e659697bbac1747db3def73e7.

Now that the VL805 init routine is run through a reset controller driver
the dependencies are being taken care of by the device core. No need to
do it manually here.

Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@...e.de>
---
 drivers/pci/controller/pcie-brcmstb.c | 17 -----------------
 1 file changed, 17 deletions(-)

diff --git a/drivers/pci/controller/pcie-brcmstb.c b/drivers/pci/controller/pcie-brcmstb.c
index 7730ea845ff2..752f5b331579 100644
--- a/drivers/pci/controller/pcie-brcmstb.c
+++ b/drivers/pci/controller/pcie-brcmstb.c
@@ -28,8 +28,6 @@
 #include <linux/string.h>
 #include <linux/types.h>
 
-#include <soc/bcm2835/raspberrypi-firmware.h>
-
 #include "../pci.h"
 
 /* BRCM_PCIE_CAP_REGS - Offset for the mandatory capability config regs */
@@ -931,26 +929,11 @@ static int brcm_pcie_probe(struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node, *msi_np;
 	struct pci_host_bridge *bridge;
-	struct device_node *fw_np;
 	struct brcm_pcie *pcie;
 	struct pci_bus *child;
 	struct resource *res;
 	int ret;
 
-	/*
-	 * We have to wait for Raspberry Pi's firmware interface to be up as a
-	 * PCI fixup, rpi_firmware_init_vl805(), depends on it. This driver's
-	 * probe can race with the firmware interface's (see
-	 * drivers/firmware/raspberrypi.c) and potentially break the PCI fixup.
-	 */
-	fw_np = of_find_compatible_node(NULL, NULL,
-					"raspberrypi,bcm2835-firmware");
-	if (fw_np && !rpi_firmware_get(fw_np)) {
-		of_node_put(fw_np);
-		return -EPROBE_DEFER;
-	}
-	of_node_put(fw_np);
-
 	bridge = devm_pci_alloc_host_bridge(&pdev->dev, sizeof(*pcie));
 	if (!bridge)
 		return -ENOMEM;
-- 
2.26.2