diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2022-09-05 10:23:02 +0200 |
|---|---|---|
| committer | Wei Xu <xuwei5@hisilicon.com> | 2022-09-08 04:27:28 +0200 |
| commit | 947f11d153f20f87828a15e829d69890db71bcf7 (patch) | |
| tree | 17da10db7be434a20d555bdb072f9f0bd93dec40 /drivers/bus | |
| parent | Linux 6.0-rc1 (diff) | |
| download | linux-947f11d153f20f87828a15e829d69890db71bcf7.tar.xz linux-947f11d153f20f87828a15e829d69890db71bcf7.zip | |
bus: hisi_lpc: Don't dereference fwnode handle
Use dev_fwnode() and acpi_fwnode_handle() instead of dereferencing
an fwnode handle directly, which is a better coding practice.
While at it, reuse fwnode instead of ACPI_COMPANION().
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
Diffstat (limited to 'drivers/bus')
| -rw-r--r-- | drivers/bus/hisi_lpc.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/bus/hisi_lpc.c b/drivers/bus/hisi_lpc.c index 2e564803e786..6d432a07cbba 100644 --- a/drivers/bus/hisi_lpc.c +++ b/drivers/bus/hisi_lpc.c @@ -347,7 +347,7 @@ static int hisi_lpc_acpi_xlat_io_res(struct acpi_device *adev, unsigned long sys_port; resource_size_t len = resource_size(res); - sys_port = logic_pio_trans_hwaddr(&host->fwnode, res->start, len); + sys_port = logic_pio_trans_hwaddr(acpi_fwnode_handle(host), res->start, len); if (sys_port == ~0UL) return -EFAULT; @@ -615,7 +615,6 @@ static void hisi_lpc_acpi_remove(struct device *hostdev) static int hisi_lpc_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; - struct acpi_device *acpi_device = ACPI_COMPANION(dev); struct logic_pio_hwaddr *range; struct hisi_lpc_dev *lpcdev; resource_size_t io_end; @@ -637,7 +636,7 @@ static int hisi_lpc_probe(struct platform_device *pdev) if (!range) return -ENOMEM; - range->fwnode = dev->fwnode; + range->fwnode = dev_fwnode(dev); range->flags = LOGIC_PIO_INDIRECT; range->size = PIO_INDIRECT_SIZE; range->hostdata = lpcdev; @@ -651,7 +650,7 @@ static int hisi_lpc_probe(struct platform_device *pdev) } /* register the LPC host PIO resources */ - if (acpi_device) + if (is_acpi_device_node(range->fwnode)) ret = hisi_lpc_acpi_probe(dev); else ret = of_platform_populate(dev->of_node, NULL, NULL, dev); @@ -672,11 +671,10 @@ static int hisi_lpc_probe(struct platform_device *pdev) static int hisi_lpc_remove(struct platform_device *pdev) { struct device *dev = &pdev->dev; - struct acpi_device *acpi_device = ACPI_COMPANION(dev); struct hisi_lpc_dev *lpcdev = dev_get_drvdata(dev); struct logic_pio_hwaddr *range = lpcdev->io_host; - if (acpi_device) + if (is_acpi_device_node(range->fwnode)) hisi_lpc_acpi_remove(dev); else of_platform_depopulate(dev); |