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ipq806x: usb: add phy 1 master reset control

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In current state only phy 0 master reset is controlled.
Add the phy 1 reset.

Signed-off-by: Pavel Kubelun <be.dissent@gmail.com>
This commit is contained in:
Pavel Kubelun 2017-06-15 13:58:34 +03:00 committed by Felix Fietkau
parent de748a121e
commit e93a16ed3f
2 changed files with 26 additions and 12 deletions
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5
target/linux/ipq806x/files-4.9/arch/arm/boot/dts/qcom-ipq8064.dtsi
View file

@ -968,7 +968,7 @@
ranges;
resets = <&gcc USB30_0_MASTER_RESET>;
reset-names = "usb30_mstr_rst";
reset-names = "usb30_0_mstr_rst";
status = "disabled";
@ -992,6 +992,9 @@
ranges;
resets = <&gcc USB30_1_MASTER_RESET>;
reset-names = "usb30_1_mstr_rst";
status = "disabled";
dwc3@10000000 {

33
target/linux/ipq806x/patches-4.9/0074-ipq806x-usb-Control-USB-master-reset.patch
View file

@ -11,7 +11,7 @@ Change-Id: I537dc810f6cb2a46664ee674840145066432b957
Signed-off-by: Vasudevan Murugesan <vmuruges@codeaurora.org>
(cherry picked from commit 4611e13580a216812f85f0801b95442d02eeb836)
---
drivers/usb/dwc3/dwc3-of-simple.c | 12 ++++++++++++
drivers/usb/dwc3/dwc3-of-simple.c | 22 ++++++++++++++++++++++
1 file changed, 12 insertions(+)
(limited to 'drivers/usb/dwc3/dwc3-of-simple.c')
@ -28,34 +28,45 @@ index f9e92ef..49bf556 100644
#include <linux/of.h>
#include <linux/of_platform.h>
#include <linux/pm_runtime.h>
@@ -34,6 +35,7 @@ struct dwc3_of_simple {
@@ -34,6 +35,8 @@ struct dwc3_of_simple {
struct device *dev;
struct clk **clks;
int num_clocks;
+ struct reset_control *mstr_rst;
+ struct reset_control *mstr_rst_30_0;
+ struct reset_control *mstr_rst_30_1;
};
static int dwc3_of_simple_probe(struct platform_device *pdev)
@@ -89,6 +91,13 @@ static int dwc3_of_simple_probe(struct platform_device *pdev)
@@ -89,6 +92,20 @@ static int dwc3_of_simple_probe(struct platform_device *pdev)
simple->clks[i] = clk;
}
+ simple->mstr_rst = devm_reset_control_get(dev, "usb30_mstr_rst");
+ simple->mstr_rst_30_0 = devm_reset_control_get(dev, "usb30_0_mstr_rst");
+
+ if (!IS_ERR(simple->mstr_rst))
+ reset_control_deassert(simple->mstr_rst);
+ if (!IS_ERR(simple->mstr_rst_30_0))
+ reset_control_deassert(simple->mstr_rst_30_0);
+ else
+ dev_dbg(simple->dev, "cannot get handle for master reset control\n");
+ dev_dbg(simple->dev, "cannot get handle for USB PHY 0 master reset control\n");
+
+ simple->mstr_rst_30_1 = devm_reset_control_get(dev, "usb30_1_mstr_rst");
+
+ if (!IS_ERR(simple->mstr_rst_30_1))
+ reset_control_deassert(simple->mstr_rst_30_1);
+ else
+ dev_dbg(simple->dev, "cannot get handle for USB PHY 1 master reset control\n");
+
ret = of_platform_populate(np, NULL, NULL, dev);
if (ret) {
for (i = 0; i < simple->num_clocks; i++) {
@@ -117,6 +126,9 @@ static int dwc3_of_simple_remove(struct platform_device *pdev)
@@ -117,6 +134,12 @@ static int dwc3_of_simple_remove(struct platform_device *pdev)
clk_put(simple->clks[i]);
}
+ if (!IS_ERR(simple->mstr_rst))
+ reset_control_assert(simple->mstr_rst);
+ if (!IS_ERR(simple->mstr_rst_30_0))
+ reset_control_assert(simple->mstr_rst_30_0);
+
+ if (!IS_ERR(simple->mstr_rst_30_1))
+ reset_control_assert(simple->mstr_rst_30_1);
+
of_platform_depopulate(dev);