redonkable/alistair23-linux
redonkable/alistair23-linux
1
0
Fork 0
Code Releases Activity

usb: dwc3: exynos: Remove dead code

Browse source 
All supported Exynos variants provide respective generic PHY framework
based drivers for controlling USB PHYs, so there is no point
creating fake USB PHYs based on platform devices. While removing useless
code, remove calls to runtime PM, which have no effect.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Marek Szyprowski 2018-09-18 10:16:50 +02:00 committed by Felipe Balbi
parent 4a13b9689d
commit 1e041b6f31
1 changed files with 0 additions and 75 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

75
drivers/usb/dwc3/dwc3-exynos.c
View file

@ -13,15 +13,11 @@
#include <linux/slab.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/usb/otg.h>
#include <linux/usb/usb_phy_generic.h>
#include <linux/of.h>
#include <linux/of_platform.h>
#include <linux/regulator/consumer.h>
struct dwc3_exynos {
struct platform_device *usb2_phy;
struct platform_device *usb3_phy;
struct device *dev;
struct clk *clk;
@ -32,61 +28,6 @@ struct dwc3_exynos {
struct regulator *vdd10;
};
static int dwc3_exynos_register_phys(struct dwc3_exynos *exynos)
{
struct usb_phy_generic_platform_data pdata;
struct platform_device *pdev;
int ret;
memset(&pdata, 0x00, sizeof(pdata));
pdev = platform_device_alloc("usb_phy_generic", PLATFORM_DEVID_AUTO);
if (!pdev)
return -ENOMEM;
exynos->usb2_phy = pdev;
pdata.type = USB_PHY_TYPE_USB2;
pdata.gpio_reset = -1;
ret = platform_device_add_data(exynos->usb2_phy, &pdata, sizeof(pdata));
if (ret)
goto err1;
pdev = platform_device_alloc("usb_phy_generic", PLATFORM_DEVID_AUTO);
if (!pdev) {
ret = -ENOMEM;
goto err1;
}
exynos->usb3_phy = pdev;
pdata.type = USB_PHY_TYPE_USB3;
ret = platform_device_add_data(exynos->usb3_phy, &pdata, sizeof(pdata));
if (ret)
goto err2;
ret = platform_device_add(exynos->usb2_phy);
if (ret)
goto err2;
ret = platform_device_add(exynos->usb3_phy);
if (ret)
goto err3;
return 0;
err3:
platform_device_del(exynos->usb2_phy);
err2:
platform_device_put(exynos->usb3_phy);
err1:
platform_device_put(exynos->usb2_phy);
return ret;
}
static int dwc3_exynos_remove_child(struct device *dev, void *unused)
{
struct platform_device *pdev = to_platform_device(dev);
@ -164,12 +105,6 @@ static int dwc3_exynos_probe(struct platform_device *pdev)
goto vdd10_err;
}
ret = dwc3_exynos_register_phys(exynos);
if (ret) {
dev_err(dev, "couldn't register PHYs\n");
goto phys_err;
}
if (node) {
ret = of_platform_populate(node, NULL, NULL, dev);
if (ret) {
@ -185,9 +120,6 @@ static int dwc3_exynos_probe(struct platform_device *pdev)
return 0;
populate_err:
platform_device_unregister(exynos->usb2_phy);
platform_device_unregister(exynos->usb3_phy);
phys_err:
regulator_disable(exynos->vdd10);
vdd10_err:
regulator_disable(exynos->vdd33);
@ -205,8 +137,6 @@ static int dwc3_exynos_remove(struct platform_device *pdev)
struct dwc3_exynos *exynos = platform_get_drvdata(pdev);
device_for_each_child(&pdev->dev, NULL, dwc3_exynos_remove_child);
platform_device_unregister(exynos->usb2_phy);
platform_device_unregister(exynos->usb3_phy);
clk_disable_unprepare(exynos->axius_clk);
clk_disable_unprepare(exynos->susp_clk);
@ -258,11 +188,6 @@ static int dwc3_exynos_resume(struct device *dev)
clk_enable(exynos->clk);
clk_enable(exynos->axius_clk);
/* runtime set active to reflect active state. */
pm_runtime_disable(dev);
pm_runtime_set_active(dev);
pm_runtime_enable(dev);
return 0;
}