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Diffstat (limited to 'target/linux/sunxi/patches-4.4/145-usb-ohci-plat-support-multiple-reset-ctrllines.patch')
-rw-r--r--target/linux/sunxi/patches-4.4/145-usb-ohci-plat-support-multiple-reset-ctrllines.patch128
1 files changed, 0 insertions, 128 deletions
diff --git a/target/linux/sunxi/patches-4.4/145-usb-ohci-plat-support-multiple-reset-ctrllines.patch b/target/linux/sunxi/patches-4.4/145-usb-ohci-plat-support-multiple-reset-ctrllines.patch
deleted file mode 100644
index a25d487aad..0000000000
--- a/target/linux/sunxi/patches-4.4/145-usb-ohci-plat-support-multiple-reset-ctrllines.patch
+++ /dev/null
@@ -1,128 +0,0 @@
-From 5f0c864c1f207dba1db587747a58ec6b362dadf8 Mon Sep 17 00:00:00 2001
-From: Hans de Goede <hdegoede@redhat.com>
-Date: Sun, 29 Nov 2015 18:44:14 +0100
-Subject: [PATCH] ohci-platform: Add support for controllers with multiple
- reset lines
-
-At least the EHCI/OHCI found on the Allwinnner H3 SoC needs multiple
-reset lines, the controller will not initialize while the reset for
-its companion is still asserted, which means we need to de-assert
-2 resets for the controller to work.
-
-Signed-off-by: Hans de Goede <hdegoede@redhat.com>
----
-Changes in v2:
--New patch in v2 of this patch-set, to complement the identical patch for
- the ehci-platform code
----
- Documentation/devicetree/bindings/usb/usb-ohci.txt | 2 +-
- drivers/usb/host/ohci-platform.c | 49 +++++++++++++---------
- 2 files changed, 30 insertions(+), 21 deletions(-)
-
---- a/Documentation/devicetree/bindings/usb/usb-ohci.txt
-+++ b/Documentation/devicetree/bindings/usb/usb-ohci.txt
-@@ -14,7 +14,7 @@ Optional properties:
- - clocks : a list of phandle + clock specifier pairs
- - phys : phandle + phy specifier pair
- - phy-names : "usb"
--- resets : phandle + reset specifier pair
-+- resets : a list of phandle + reset specifier pairs
-
- Example:
-
---- a/drivers/usb/host/ohci-platform.c
-+++ b/drivers/usb/host/ohci-platform.c
-@@ -33,11 +33,12 @@
-
- #define DRIVER_DESC "OHCI generic platform driver"
- #define OHCI_MAX_CLKS 3
-+#define OHCI_MAX_RESETS 2
- #define hcd_to_ohci_priv(h) ((struct ohci_platform_priv *)hcd_to_ohci(h)->priv)
-
- struct ohci_platform_priv {
- struct clk *clks[OHCI_MAX_CLKS];
-- struct reset_control *rst;
-+ struct reset_control *resets[OHCI_MAX_RESETS];
- struct phy **phys;
- int num_phys;
- };
-@@ -117,7 +118,7 @@ static int ohci_platform_probe(struct pl
- struct usb_ohci_pdata *pdata = dev_get_platdata(&dev->dev);
- struct ohci_platform_priv *priv;
- struct ohci_hcd *ohci;
-- int err, irq, phy_num, clk = 0;
-+ int err, irq, phy_num, clk = 0, rst = 0;
-
- if (usb_disabled())
- return -ENODEV;
-@@ -195,19 +196,23 @@ static int ohci_platform_probe(struct pl
- break;
- }
- }
--
-- }
--
-- priv->rst = devm_reset_control_get_optional(&dev->dev, NULL);
-- if (IS_ERR(priv->rst)) {
-- err = PTR_ERR(priv->rst);
-- if (err == -EPROBE_DEFER)
-- goto err_put_clks;
-- priv->rst = NULL;
-- } else {
-- err = reset_control_deassert(priv->rst);
-- if (err)
-- goto err_put_clks;
-+ for (rst = 0; rst < OHCI_MAX_RESETS; rst++) {
-+ priv->resets[rst] =
-+ of_reset_control_get_by_index(dev->dev.of_node,
-+ rst);
-+ if (IS_ERR(priv->resets[rst])) {
-+ err = PTR_ERR(priv->resets[rst]);
-+ if (err == -EPROBE_DEFER)
-+ goto err_reset;
-+ priv->resets[rst] = NULL;
-+ break;
-+ }
-+ err = reset_control_deassert_shared(priv->resets[rst]);
-+ if (err) {
-+ reset_control_put(priv->resets[rst]);
-+ goto err_reset;
-+ }
-+ }
- }
-
- if (pdata->big_endian_desc)
-@@ -265,8 +270,10 @@ err_power:
- if (pdata->power_off)
- pdata->power_off(dev);
- err_reset:
-- if (priv->rst)
-- reset_control_assert(priv->rst);
-+ while (--rst >= 0) {
-+ reset_control_assert_shared(priv->resets[rst]);
-+ reset_control_put(priv->resets[rst]);
-+ }
- err_put_clks:
- while (--clk >= 0)
- clk_put(priv->clks[clk]);
-@@ -284,15 +291,17 @@ static int ohci_platform_remove(struct p
- struct usb_hcd *hcd = platform_get_drvdata(dev);
- struct usb_ohci_pdata *pdata = dev_get_platdata(&dev->dev);
- struct ohci_platform_priv *priv = hcd_to_ohci_priv(hcd);
-- int clk;
-+ int clk, rst;
-
- usb_remove_hcd(hcd);
-
- if (pdata->power_off)
- pdata->power_off(dev);
-
-- if (priv->rst)
-- reset_control_assert(priv->rst);
-+ for (rst = 0; rst < OHCI_MAX_RESETS && priv->resets[rst]; rst++) {
-+ reset_control_assert_shared(priv->resets[rst]);
-+ reset_control_put(priv->resets[rst]);
-+ }
-
- for (clk = 0; clk < OHCI_MAX_CLKS && priv->clks[clk]; clk++)
- clk_put(priv->clks[clk]);