Patch "ARM: DRA7: hwmod_data: Prevent wait_target_disable error for usb_otg_ss" has been added to the 4.4-stable tree

This is a note to let you know that I've just added the patch titled

ARM: DRA7: hwmod_data: Prevent wait_target_disable error for usb_otg_ss

to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
arm-dra7-hwmod_data-prevent-wait_target_disable-error-for-usb_otg_ss.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Roger Quadros <[email protected]>
Date: Mon, 13 Mar 2017 13:53:16 +0200
Subject: ARM: DRA7: hwmod_data: Prevent wait_target_disable error for usb_otg_ss

From: Roger Quadros <[email protected]>

[ Upstream commit e2d54fe76997301b49311bde7ba8ef52b47896f9 ]

It seems that if L3_INIT clkdomain is kept in HW_AUTO while usb_otg_ss is in use then there are random chances that the usb_otg_ss module will fail to completely idle. i.e. IDLEST = 0x2 instead of 0x3.

Preventing L3_INIT from HW_AUTO while usb_otg_ss module is in use fixes this issue.

We don't know yet if usb_otg_ss instances 3 and 4 are affected by this issue or not so don't add this flag for those instances.

---
 arch/arm/mach-omap2/omap_hwmod_7xx_data.c |    2 ++
 1 file changed, 2 insertions(+)

@@ -2240,6 +2240,7 @@ static struct omap_hwmod dra7xx_usb_otg_
 	.class		= &dra7xx_usb_otg_ss_hwmod_class,
 	.clkdm_name	= "l3init_clkdm",
 	.main_clk	= "dpll_core_h13x2_ck",
+	.flags		= HWMOD_CLKDM_NOAUTO,
 	.prcm = {
 		.omap4 = {
 			.clkctrl_offs = DRA7XX_CM_L3INIT_USB_OTG_SS1_CLKCTRL_OFFSET,

@@ -2261,6 +2262,7 @@ static struct omap_hwmod dra7xx_usb_otg_
 	.class		= &dra7xx_usb_otg_ss_hwmod_class,
 	.clkdm_name	= "l3init_clkdm",
 	.main_clk	= "dpll_core_h13x2_ck",
+	.flags		= HWMOD_CLKDM_NOAUTO,
 	.prcm = {
 		.omap4 = {
 			.clkctrl_offs = DRA7XX_CM_L3INIT_USB_OTG_SS2_CLKCTRL_OFFSET,

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/arm-dra7-hwmod_data-prevent-wait_target_disable-error-for-usb_otg_ss.patch