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authorLinus Torvalds <torvalds@linux-foundation.org>2021-04-26 11:03:17 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-04-26 11:03:17 -0700
commit8e3a3249502d8ff92d73d827fb41dd44c5a16f76 (patch)
tree033e620f253013f37426c51fdb1699e65dc9770d /drivers/fpga/xilinx-pr-decoupler.c
parent90035c28f17d59be660b9992757d09853ab203ec (diff)
parente2cb6b891ad2b8caa9131e3be70f45243df82a80 (diff)
downloadlinux-8e3a3249502d8ff92d73d827fb41dd44c5a16f76.tar.gz
Merge tag 'char-misc-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH: "Here is the big set of various smaller driver subsystem updates for 5.13-rc1. Major bits in here are: - habanalabs driver updates - hwtracing driver updates - interconnect driver updates - mhi driver updates - extcon driver updates - fpga driver updates - new binder features added - nvmem driver updates - phy driver updates - soundwire driver updates - smaller misc and char driver fixes and updates. - bluetooth driver bugfix that maintainer wanted to go through this tree. All of these have been in linux-next with no reported issues" * tag 'char-misc-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (330 commits) bluetooth: eliminate the potential race condition when removing the HCI controller coresight: etm-perf: Fix define build issue when built as module phy: Revert "phy: ti: j721e-wiz: add missing of_node_put" phy: ti: j721e-wiz: Add missing include linux/slab.h phy: phy-twl4030-usb: Fix possible use-after-free in twl4030_usb_remove() stm class: Use correct UUID APIs intel_th: pci: Add Alder Lake-M support intel_th: pci: Add Rocket Lake CPU support intel_th: Consistency and off-by-one fix intel_th: Constify attribute_group structs intel_th: Constify all drvdata references stm class: Remove an unused function habanalabs/gaudi: Fix uninitialized return code rc when read size is zero greybus: es2: fix kernel-doc warnings mei: me: add Alder Lake P device id. dw-xdata-pcie: Update outdated info and improve text format dw-xdata-pcie: Fix documentation build warns fbdev: zero-fill colormap in fbcmap.c firmware: qcom-scm: Fix QCOM_SCM configuration speakup: i18n: Switch to kmemdup_nul() in spk_msg_set() ...
Diffstat (limited to 'drivers/fpga/xilinx-pr-decoupler.c')
-rw-r--r--drivers/fpga/xilinx-pr-decoupler.c45
1 files changed, 35 insertions, 10 deletions
diff --git a/drivers/fpga/xilinx-pr-decoupler.c b/drivers/fpga/xilinx-pr-decoupler.c
index 7d69af230567..ea2bde6e5bc4 100644
--- a/drivers/fpga/xilinx-pr-decoupler.c
+++ b/drivers/fpga/xilinx-pr-decoupler.c
@@ -1,7 +1,7 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2017, National Instruments Corp.
- * Copyright (c) 2017, Xilix Inc
+ * Copyright (c) 2017, Xilinx Inc
*
* FPGA Bridge Driver for the Xilinx LogiCORE Partial Reconfiguration
* Decoupler IP Core.
@@ -18,7 +18,12 @@
#define CTRL_CMD_COUPLE 0
#define CTRL_OFFSET 0
+struct xlnx_config_data {
+ const char *name;
+};
+
struct xlnx_pr_decoupler_data {
+ const struct xlnx_config_data *ipconfig;
void __iomem *io_base;
struct clk *clk;
};
@@ -76,15 +81,28 @@ static const struct fpga_bridge_ops xlnx_pr_decoupler_br_ops = {
.enable_show = xlnx_pr_decoupler_enable_show,
};
+static const struct xlnx_config_data decoupler_config = {
+ .name = "Xilinx PR Decoupler",
+};
+
+static const struct xlnx_config_data shutdown_config = {
+ .name = "Xilinx DFX AXI Shutdown Manager",
+};
+
static const struct of_device_id xlnx_pr_decoupler_of_match[] = {
- { .compatible = "xlnx,pr-decoupler-1.00", },
- { .compatible = "xlnx,pr-decoupler", },
+ { .compatible = "xlnx,pr-decoupler-1.00", .data = &decoupler_config },
+ { .compatible = "xlnx,pr-decoupler", .data = &decoupler_config },
+ { .compatible = "xlnx,dfx-axi-shutdown-manager-1.00",
+ .data = &shutdown_config },
+ { .compatible = "xlnx,dfx-axi-shutdown-manager",
+ .data = &shutdown_config },
{},
};
MODULE_DEVICE_TABLE(of, xlnx_pr_decoupler_of_match);
static int xlnx_pr_decoupler_probe(struct platform_device *pdev)
{
+ struct device_node *np = pdev->dev.of_node;
struct xlnx_pr_decoupler_data *priv;
struct fpga_bridge *br;
int err;
@@ -94,17 +112,23 @@ static int xlnx_pr_decoupler_probe(struct platform_device *pdev)
if (!priv)
return -ENOMEM;
+ if (np) {
+ const struct of_device_id *match;
+
+ match = of_match_node(xlnx_pr_decoupler_of_match, np);
+ if (match && match->data)
+ priv->ipconfig = match->data;
+ }
+
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
priv->io_base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(priv->io_base))
return PTR_ERR(priv->io_base);
priv->clk = devm_clk_get(&pdev->dev, "aclk");
- if (IS_ERR(priv->clk)) {
- if (PTR_ERR(priv->clk) != -EPROBE_DEFER)
- dev_err(&pdev->dev, "input clock not found\n");
- return PTR_ERR(priv->clk);
- }
+ if (IS_ERR(priv->clk))
+ return dev_err_probe(&pdev->dev, PTR_ERR(priv->clk),
+ "input clock not found\n");
err = clk_prepare_enable(priv->clk);
if (err) {
@@ -114,7 +138,7 @@ static int xlnx_pr_decoupler_probe(struct platform_device *pdev)
clk_disable(priv->clk);
- br = devm_fpga_bridge_create(&pdev->dev, "Xilinx PR Decoupler",
+ br = devm_fpga_bridge_create(&pdev->dev, priv->ipconfig->name,
&xlnx_pr_decoupler_br_ops, priv);
if (!br) {
err = -ENOMEM;
@@ -125,7 +149,8 @@ static int xlnx_pr_decoupler_probe(struct platform_device *pdev)
err = fpga_bridge_register(br);
if (err) {
- dev_err(&pdev->dev, "unable to register Xilinx PR Decoupler");
+ dev_err(&pdev->dev, "unable to register %s",
+ priv->ipconfig->name);
goto err_clk;
}