Patch "MIPS: lantiq: Enable AHB Bus for USB" has been added to the 4.15-stable tree

PATCH [email protected] 1 participant 1 message Mar 24, 2018

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Stable branch MIPS Lantiq MIPS architecture

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2018-03-24 17:26 UTC #0 lore raw

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

MIPS: lantiq: Enable AHB Bus for USB

to the 4.15-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:
mips-lantiq-enable-ahb-bus-for-usb.patch
and it can be found in the queue-4.15 subdirectory.

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

Quoted 1 line

From 3223a5a7d3a606dcb7d9190a788b9544a45441ee Mon Sep 17 00:00:00 2001

From: Mathias Kresin <[email protected]>
Date: Fri, 16 Mar 2018 21:27:29 +0100
Subject: MIPS: lantiq: Enable AHB Bus for USB

From: Mathias Kresin <[email protected]>

commit 3223a5a7d3a606dcb7d9190a788b9544a45441ee upstream.

On Danube and AR9 the USB core is connected though a AHB bus to the main system cross bar, hence we need to enable the gating clock of the AHB Bus as well to make the USB controller work.

Fixes dea54fbad332 ("phy: Add an USB PHY driver for the Lantiq SoCs using the RCU module")

Signed-off-by Mathias Kresin <[email protected]>

Signed-off-by Hauke Mehrtens <[email protected]>

Acked-by Martin Blumenstingl <[email protected]>

Cc Ralf Baechle <[email protected]>

Cc John Crispin <[email protected]>

Cc [email protected]

Cc <[email protected]> # 4.14+

Patchwork: https://patchwork.linux-mips.org/patch/18814/

Signed-off-by James Hogan <[email protected]>

Signed-off-by Greg Kroah-Hartman <[email protected]>

---
 arch/mips/lantiq/xway/sysctrl.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

arch/mips/lantiq/xway/sysctrl.c +3 -3

@@ -549,9 +549,9 @@ void __init ltq_soc_init(void)
 		clkdev_add_static(ltq_ar9_cpu_hz(), ltq_ar9_fpi_hz(),
 				ltq_ar9_fpi_hz(), CLOCK_250M);
 		clkdev_add_pmu("1f203018.usb2-phy", "phy", 1, 0, PMU_USB0_P);
-		clkdev_add_pmu("1e101000.usb", "otg", 1, 0, PMU_USB0);
+		clkdev_add_pmu("1e101000.usb", "otg", 1, 0, PMU_USB0 | PMU_AHBM);
 		clkdev_add_pmu("1f203034.usb2-phy", "phy", 1, 0, PMU_USB1_P);
-		clkdev_add_pmu("1e106000.usb", "otg", 1, 0, PMU_USB1);
+		clkdev_add_pmu("1e106000.usb", "otg", 1, 0, PMU_USB1 | PMU_AHBM);
 		clkdev_add_pmu("1e180000.etop", "switch", 1, 0, PMU_SWITCH);
 		clkdev_add_pmu("1e103000.sdio", NULL, 1, 0, PMU_SDIO);
 		clkdev_add_pmu("1e103100.deu", NULL, 1, 0, PMU_DEU);

@@ -560,7 +560,7 @@ void __init ltq_soc_init(void)
 	} else {
 		clkdev_add_static(ltq_danube_cpu_hz(), ltq_danube_fpi_hz(),
 				ltq_danube_fpi_hz(), ltq_danube_pp32_hz());
-		clkdev_add_pmu("1e101000.usb", "otg", 1, 0, PMU_USB0);
+		clkdev_add_pmu("1e101000.usb", "otg", 1, 0, PMU_USB0 | PMU_AHBM);
 		clkdev_add_pmu("1f203018.usb2-phy", "phy", 1, 0, PMU_USB0_P);
 		clkdev_add_pmu("1e103000.sdio", NULL, 1, 0, PMU_SDIO);
 		clkdev_add_pmu("1e103100.deu", NULL, 1, 0, PMU_DEU);

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

queue-4.15/mips-lantiq-ase-enable-mfd_syscon.patch queue-4.15/mips-lantiq-enable-ahb-bus-for-usb.patch queue-4.15/mips-lantiq-fix-danube-usb-clock.patch