From: Paul Burton <paul.burton@imgtec.com>
To: <linux-mips@linux-mips.org>, Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@imgtec.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Alan Stern <stern@rowland.harvard.edu>,
<linux-usb@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: [PATCH 06/20] usb: host: ehci-sead3: Support probing using device tree
Date: Tue, 9 Aug 2016 13:35:31 +0100 [thread overview]
Message-ID: <20160809123546.10190-7-paul.burton@imgtec.com> (raw)
In-Reply-To: <20160809123546.10190-1-paul.burton@imgtec.com>
Introduce support for probing the SEAD3 EHCI driver using device tree.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
---
drivers/usb/host/ehci-sead3.c | 29 +++++++++++++++++++++++------
1 file changed, 23 insertions(+), 6 deletions(-)
diff --git a/drivers/usb/host/ehci-sead3.c b/drivers/usb/host/ehci-sead3.c
index 3d86cc2..05db1ae 100644
--- a/drivers/usb/host/ehci-sead3.c
+++ b/drivers/usb/host/ehci-sead3.c
@@ -20,6 +20,7 @@
*/
#include <linux/err.h>
+#include <linux/of_irq.h>
#include <linux/platform_device.h>
static int ehci_sead3_setup(struct usb_hcd *hcd)
@@ -96,15 +97,25 @@ static int ehci_hcd_sead3_drv_probe(struct platform_device *pdev)
{
struct usb_hcd *hcd;
struct resource *res;
- int ret;
+ int ret, irq;
if (usb_disabled())
return -ENODEV;
- if (pdev->resource[1].flags != IORESOURCE_IRQ) {
- pr_debug("resource[1] is not IORESOURCE_IRQ");
- return -ENOMEM;
+ if (pdev->dev.of_node) {
+ irq = irq_of_parse_and_map(pdev->dev.of_node, 0);
+ if (!irq) {
+ dev_err(&pdev->dev, "failed to map IRQ\n");
+ return -ENODEV;
+ }
+ } else {
+ if (pdev->resource[1].flags != IORESOURCE_IRQ) {
+ pr_debug("resource[1] is not IORESOURCE_IRQ");
+ return -ENOMEM;
+ }
+ irq = pdev->resource[1].start;
}
+
hcd = usb_create_hcd(&ehci_sead3_hc_driver, &pdev->dev, "SEAD-3");
if (!hcd)
return -ENOMEM;
@@ -121,8 +132,7 @@ static int ehci_hcd_sead3_drv_probe(struct platform_device *pdev)
/* Root hub has integrated TT. */
hcd->has_tt = 1;
- ret = usb_add_hcd(hcd, pdev->resource[1].start,
- IRQF_SHARED);
+ ret = usb_add_hcd(hcd, irq, IRQF_SHARED);
if (ret == 0) {
platform_set_drvdata(pdev, hcd);
device_wakeup_enable(hcd->self.controller);
@@ -172,12 +182,19 @@ static const struct dev_pm_ops sead3_ehci_pmops = {
#define SEAD3_EHCI_PMOPS NULL
#endif
+static const struct of_device_id sead3_ehci_of_match[] = {
+ { .compatible = "mti,sead3-ehci" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, sead3_ehci_of_match);
+
static struct platform_driver ehci_hcd_sead3_driver = {
.probe = ehci_hcd_sead3_drv_probe,
.remove = ehci_hcd_sead3_drv_remove,
.shutdown = usb_hcd_platform_shutdown,
.driver = {
.name = "sead3-ehci",
+ .of_match_table = sead3_ehci_of_match,
.pm = SEAD3_EHCI_PMOPS,
}
};
--
2.9.2
next prev parent reply other threads:[~2016-08-09 12:37 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-09 12:35 [PATCH 00/20] MIPS: SEAD3 device tree conversion Paul Burton
2016-08-09 12:35 ` [PATCH 01/20] MIPS: SEAD3: Split obj-y entries across lines Paul Burton
2016-08-09 12:35 ` [PATCH 02/20] MIPS: SEAD3: Probe interrupt controllers using DT Paul Burton
2016-08-10 9:41 ` kbuild test robot
2016-08-09 12:35 ` [PATCH 03/20] MIPS: SEAD3: Probe UARTs " Paul Burton
2016-08-10 10:15 ` kbuild test robot
2016-08-10 10:57 ` kbuild test robot
2016-08-09 12:35 ` [PATCH 04/20] MIPS: SEAD3: Use generic ns16550a earlycon support Paul Burton
2016-08-09 12:35 ` [PATCH 05/20] MIPS: SEAD3: Probe ethernet controller using DT Paul Burton
2016-08-09 12:35 ` Paul Burton [this message]
2016-08-09 14:08 ` [PATCH 06/20] usb: host: ehci-sead3: Support probing using device tree Jonas Gorski
2016-08-09 12:35 ` [PATCH 07/20] MIPS: SEAD3: Probe EHCI controller using DT Paul Burton
2016-08-09 12:35 ` [PATCH 08/20] usb: host: ehci-sead3: Remove non-DT probe code Paul Burton
2016-08-09 14:21 ` Alan Stern
2016-08-09 12:35 ` [PATCH 09/20] SEAD3: Probe parallel flash via DT Paul Burton
2016-08-09 13:23 ` Sergei Shtylyov
2016-08-09 12:35 ` [PATCH 10/20] MIPS: SEAD3: Use register-bit-led driver via DT for LEDs Paul Burton
2016-08-09 12:35 ` [PATCH 11/20] leds: Remove SEAD3 driver Paul Burton
2016-08-09 12:35 ` [PATCH 12/20] MIPS: SEAD3: Reset via generic syscon-reboot driver & DT Paul Burton
2016-08-09 12:35 ` [PATCH 13/20] MIPS: SEAD3: Use generic restart-poweroff driver Paul Burton
2016-08-09 12:35 ` [PATCH 14/20] MIPS: SEAD3: Parse memsize in DT shim Paul Burton
2016-08-09 12:35 ` [PATCH 15/20] MIPS: SEAD3: Drop use of cobalt fbdev driver Paul Burton
2016-08-09 12:35 ` [PATCH 16/20] fbdev: cobalt_lcdfb: Drop SEAD3 support Paul Burton
2016-08-10 10:17 ` Tomi Valkeinen
2016-08-09 12:35 ` [PATCH 17/20] dt-bindings: img-ascii-lcd: Document a binding for simple ASCII LCDs Paul Burton
2016-08-10 22:16 ` Rob Herring
2016-08-09 12:35 ` [PATCH 18/20] auxdisplay: img-ascii-lcd: driver for simple ASCII LCD displays Paul Burton
2016-08-09 12:35 ` [PATCH 19/20] MIPS: SEAD3: Use img-ascii-lcd driver Paul Burton
2016-08-09 12:35 ` [PATCH 20/20] MIPS: SEAD3: Remove custom read_persistent_clock Paul Burton
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