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 4.14-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-4.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 3223a5a7d3a606dcb7d9190a788b9544a45441ee Mon Sep 17 00:00:00 2001 From: Mathias Kresin <dev@xxxxxxxxx> Date: Fri, 16 Mar 2018 21:27:29 +0100 Subject: MIPS: lantiq: Enable AHB Bus for USB From: Mathias Kresin <dev@xxxxxxxxx> 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 <dev@xxxxxxxxx> Signed-off-by: Hauke Mehrtens <hauke@xxxxxxxxxx> Acked-by: Martin Blumenstingl <martin.blumenstingl@xxxxxxxxxxxxxx> Cc: Ralf Baechle <ralf@xxxxxxxxxxxxxx> Cc: John Crispin <john@xxxxxxxxxxx> Cc: linux-mips@xxxxxxxxxxxxxx Cc: <stable@xxxxxxxxxxxxxxx> # 4.14+ Patchwork: https://patchwork.linux-mips.org/patch/18814/ Signed-off-by: James Hogan <jhogan@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- arch/mips/lantiq/xway/sysctrl.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) --- a/arch/mips/lantiq/xway/sysctrl.c +++ b/arch/mips/lantiq/xway/sysctrl.c @@ -551,9 +551,9 @@ 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); @@ -562,7 +562,7 @@ 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 dev@xxxxxxxxx are queue-4.14/mips-lantiq-ase-enable-mfd_syscon.patch queue-4.14/mips-lantiq-enable-ahb-bus-for-usb.patch queue-4.14/mips-lantiq-fix-danube-usb-clock.patch