forked from Qortal/Brooklyn
7d3018da4c
* NVME, SATA NAND Security added * Qortal Core exception fetcher is now redone. * Update DT overlays for firmware * Fix for bvb clockj settings * Fix for no audio for sissy desktop porn watchers -_- ( thanks crowetic for watching gay porn and reporting me that bug asshat ) * Normalize the fetch() stream while doing a peer to peer handshake for nodes * Fix for RNG token editing error while performing a SHA256 encryption * Now under voltage errors will blink red led constantly for 5 minutes then go solid. * Improve kernel thread scaling for Qortal 2.0 core * HDMI circuit is now enabled at power up instead. * Added KMS * Added line replication instead of interpolation for VC4 GPU resulting in slightly better frame rates * Fix for long and doubles * Backplane clock is now set at standard rate * Capped HVEC clocks * Add support for Creative Cinema webcam for donkers who like sharing dick pics. *looks at crowetic* * More scanline XGA modes for people who have weird ass monitors of all sorts. * TX/RX flow control support is now 100% stable. No lags over 1Gbps ethernet. ( Hello Qortal 3.0 ) * Using flush cache instead of fetch for QC 2.0 resulting in performance gains * VC4 clock is now enforced for desktop oriented images. * Ondemand governor now waits for 2 seconds instead of 0.5ms to scale down to the lowest safest clock freq preventing lags to the core. * Timeout of OC set at 35ms from 90ms resulting in way better clocks and sync for Qortal 2.0 core
96 lines
2.7 KiB
C
96 lines
2.7 KiB
C
/*
|
|
* Simple Power-Managed Bus Driver
|
|
*
|
|
* Copyright (C) 2014-2015 Glider bvba
|
|
*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/of_platform.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/pm_runtime.h>
|
|
|
|
static int simple_pm_bus_probe(struct platform_device *pdev)
|
|
{
|
|
const struct device *dev = &pdev->dev;
|
|
const struct of_dev_auxdata *lookup = dev_get_platdata(dev);
|
|
struct device_node *np = dev->of_node;
|
|
const struct of_device_id *match;
|
|
|
|
/*
|
|
* Allow user to use driver_override to bind this driver to a
|
|
* transparent bus device which has a different compatible string
|
|
* that's not listed in simple_pm_bus_of_match. We don't want to do any
|
|
* of the simple-pm-bus tasks for these devices, so return early.
|
|
*/
|
|
if (pdev->driver_override)
|
|
return 0;
|
|
|
|
match = of_match_device(dev->driver->of_match_table, dev);
|
|
/*
|
|
* These are transparent bus devices (not simple-pm-bus matches) that
|
|
* have their child nodes populated automatically. So, don't need to
|
|
* do anything more. We only match with the device if this driver is
|
|
* the most specific match because we don't want to incorrectly bind to
|
|
* a device that has a more specific driver.
|
|
*/
|
|
if (match && match->data) {
|
|
if (of_property_match_string(np, "compatible", match->compatible) == 0)
|
|
return 0;
|
|
else
|
|
return -ENODEV;
|
|
}
|
|
|
|
dev_dbg(&pdev->dev, "%s\n", __func__);
|
|
|
|
pm_runtime_enable(&pdev->dev);
|
|
|
|
if (np)
|
|
of_platform_populate(np, NULL, lookup, &pdev->dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int simple_pm_bus_remove(struct platform_device *pdev)
|
|
{
|
|
const void *data = of_device_get_match_data(&pdev->dev);
|
|
|
|
if (pdev->driver_override || data)
|
|
return 0;
|
|
|
|
dev_dbg(&pdev->dev, "%s\n", __func__);
|
|
|
|
pm_runtime_disable(&pdev->dev);
|
|
return 0;
|
|
}
|
|
|
|
#define ONLY_BUS ((void *) 1) /* Match if the device is only a bus. */
|
|
|
|
static const struct of_device_id simple_pm_bus_of_match[] = {
|
|
{ .compatible = "simple-pm-bus", },
|
|
{ .compatible = "simple-bus", .data = ONLY_BUS },
|
|
{ .compatible = "simple-mfd", .data = ONLY_BUS },
|
|
{ .compatible = "isa", .data = ONLY_BUS },
|
|
{ .compatible = "arm,amba-bus", .data = ONLY_BUS },
|
|
{ /* sentinel */ }
|
|
};
|
|
MODULE_DEVICE_TABLE(of, simple_pm_bus_of_match);
|
|
|
|
static struct platform_driver simple_pm_bus_driver = {
|
|
.probe = simple_pm_bus_probe,
|
|
.remove = simple_pm_bus_remove,
|
|
.driver = {
|
|
.name = "simple-pm-bus",
|
|
.of_match_table = simple_pm_bus_of_match,
|
|
},
|
|
};
|
|
|
|
module_platform_driver(simple_pm_bus_driver);
|
|
|
|
MODULE_DESCRIPTION("Simple Power-Managed Bus Driver");
|
|
MODULE_AUTHOR("Geert Uytterhoeven <geert+renesas@glider.be>");
|
|
MODULE_LICENSE("GPL v2");
|