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| author | Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> | 2021-12-20 01:04:11 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-12-21 08:51:57 +0100 |
| commit | ce1d37cb7697abcc3d892558acd33a1333596534 (patch) | |
| tree | cedbeb7ebdf787f7db33febb5b1758b120a7bff5 | |
| parent | 78e17d69999521b52b9db9656e9b9b397f59f228 (diff) | |
| download | linux-ce1d37cb7697abcc3d892558acd33a1333596534.tar.gz | |
usb: musb: dsps: Use platform_get_irq_byname() to get the interrupt
platform_get_resource_byname(pdev, IORESOURCE_IRQ, ..) relies on static allocation of IRQ resources in DT core code, this causes an issue when using hierarchical interrupt domains using "interrupts" property in the node as this bypasses the hierarchical setup and messes up the irq chaining. In preparation for removal of static setup of IRQ resource from DT core code use platform_get_irq_byname(). Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Link: https://lore.kernel.org/r/20211220010411.12075-7-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/musb/musb_dsps.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c index b5935834f9d2..f75cde0f2b43 100644 --- a/drivers/usb/musb/musb_dsps.c +++ b/drivers/usb/musb/musb_dsps.c @@ -15,6 +15,7 @@ */ #include <linux/io.h> +#include <linux/irq.h> #include <linux/err.h> #include <linux/platform_device.h> #include <linux/dma-mapping.h> @@ -739,12 +740,14 @@ static int dsps_create_musb_pdev(struct dsps_glue *glue, } resources[0] = *res; - res = platform_get_resource_byname(parent, IORESOURCE_IRQ, "mc"); - if (!res) { - dev_err(dev, "failed to get irq.\n"); - return -EINVAL; - } - resources[1] = *res; + ret = platform_get_irq_byname(parent, "mc"); + if (ret < 0) + return ret; + + resources[1].start = ret; + resources[1].end = ret; + resources[1].flags = IORESOURCE_IRQ | irq_get_trigger_type(ret); + resources[1].name = "mc"; /* allocate the child platform device */ musb = platform_device_alloc("musb-hdrc", |