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1c29146d38
linux/drivers/usb/host
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Boris Brezillon e32643a744 USB: ehci-atmel: rework clk handling 
The EHCI IP only needs the UTMI/UPLL (uclk) and the peripheral (iclk)
clocks to work properly. Remove the useless system clock (fclk).

Avoid calling set_rate on the fixed rate UTMI/IPLL clock and remove
useless IS_ENABLED(CONFIG_COMMON_CLK) tests (all at91 platforms have been
moved to the CCF).

This patch also fixes a bug introduced by 3440ef1 (ARM: at91/dt: fix USB
high-speed clock to select UTMI), which was leaving the usb clock
uninitialized and preventing the OHCI driver from setting the usb clock
rate to 48MHz.
This bug was caused by several things:
1/ usb clock drivers set the CLK_SET_RATE_GATE flag, which means the rate
   cannot be changed once the clock is prepared
2/ The EHCI driver was retrieving and preparing/enabling the uhpck
   clock which was in turn preparing its parent clock (the usb clock),
   thus preventing any rate change because of 1/

Fixes: 3440ef1691 ("ARM: at91/dt: fix USB high-speed clock to select UTMI")
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-18 13:28:35 +01:00
..
whci usb: use %*pb[l] to print bitmaps including cpumasks and nodemasks 2015-02-13 21:21:38 -08:00
bcma-hcd.c treewide: Remove unnecessary BCMA_CORETABLE_END macro 2015-02-11 14:38:28 -08:00
ehci-atmel.c USB: ehci-atmel: rework clk handling 2015-03-18 13:28:35 +01:00
ehci-dbg.c
ehci-exynos.c Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
ehci-fsl.c usb: host: drop owner assignment from platform_drivers 2015-01-09 12:31:53 -08:00
ehci-fsl.h
ehci-grlib.c usb: host: drop owner assignment from platform_drivers 2015-01-09 12:31:53 -08:00
ehci-hcd.c USB: ehci-platform: Support ehci reset after resume quirk 2015-01-09 12:25:54 -08:00
ehci-hub.c ehci-hub: use HUB_CHAR_* 2015-01-25 21:01:11 +08:00
ehci-mem.c USB: EHCI: don't allocate hardware periodic table atomically by default 2014-07-09 16:16:07 -07:00
ehci-msm.c host: ehci-msm: remove duplicate check on resource 2014-11-07 09:01:50 -08:00
ehci-mv.c host: ehci-mv: remove duplicate check on resource 2014-11-07 09:01:50 -08:00
ehci-mxc.c host: ehci-mxc: remove duplicate check on resource 2014-11-07 09:01:50 -08:00
ehci-omap.c
ehci-orion.c Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
ehci-pci.c ehci-pci: disable for Intel MID platforms (update) 2015-02-03 15:28:31 -08:00
ehci-platform.c usb: ehci-platform: add support for multiple phys per controller 2015-01-25 21:05:10 +08:00
ehci-pmcmsp.c usb: host: drop owner assignment from platform_drivers 2015-01-09 12:31:53 -08:00
ehci-ppc-of.c usb: host: drop owner assignment from platform_drivers 2015-01-09 12:31:53 -08:00
ehci-ps3.c
ehci-q.c
ehci-sched.c USB: EHCI: adjust error return code 2015-01-09 09:58:49 -08:00
ehci-sead3.c usb: host: drop owner assignment from platform_drivers 2015-01-09 12:31:53 -08:00
ehci-sh.c usb: host: drop owner assignment from platform_drivers 2015-01-09 12:31:53 -08:00
ehci-spear.c host: ehci-spear: remove duplicate check on resource 2014-11-07 09:01:51 -08:00
ehci-st.c usb: host: ehci-st: Add EHCI support for ST STB devices 2014-09-23 21:35:50 -07:00
ehci-sysfs.c treewide: fix typo in printk and Kconfig 2014-11-20 14:56:11 +01:00
ehci-tegra.c usb: host: ehci-tegra: request deferred probe when failing to get phy 2015-01-09 10:01:45 -08:00
ehci-tilegx.c usb: host: drop owner assignment from platform_drivers 2015-01-09 12:31:53 -08:00
ehci-timer.c
ehci-w90x900.c Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
ehci-xilinx-of.c usb: host: drop owner assignment from platform_drivers 2015-01-09 12:31:53 -08:00
ehci.h USB: ehci-platform: Support ehci reset after resume quirk 2015-01-09 12:25:54 -08:00
fhci-dbg.c drivers/usb/host/fhci-dbg.c: remove unnecessary null test before debugfs_remove 2014-07-09 16:13:03 -07:00
fhci-hcd.c usb: host: drop owner assignment from platform_drivers 2014-10-20 16:21:49 +02:00
fhci-hub.c fhci-hub: use HUB_CHAR_* 2015-01-25 21:01:11 +08:00
fhci-mem.c
fhci-q.c
fhci-sched.c
fhci-tds.c
fhci.h
fotg210-hcd.c fotg210-hcd: use HUB_CHAR_* 2015-01-25 21:01:12 +08:00
fotg210.h fotg210: Use ehci_dbg_port struct 2014-11-07 09:02:38 -08:00
fsl-mph-dr-of.c usb: host: drop owner assignment from platform_drivers 2014-10-20 16:21:49 +02:00
fusbh200-hcd.c fusbh200-hcd: use HUB_CHAR_* 2015-01-25 21:01:12 +08:00
fusbh200.h fusbh200: Use ehci_dbg_port struct 2014-11-07 09:02:38 -08:00
hwa-hc.c USB: HWA: fix a warning message 2014-11-03 15:26:15 -08:00
imx21-dbg.c
imx21-hcd.c imx21-hcd: use HUB_CHAR_* 2015-01-25 21:01:12 +08:00
imx21-hcd.h
isp116x-hcd.c isp116x-hcd: use HUB_CHAR_* 2015-01-25 21:01:12 +08:00
isp116x.h
isp1362-hcd.c isp1362-hcd: use HUB_CHAR_* 2015-01-25 21:01:12 +08:00
isp1362.h
Kconfig usb: patches for v3.20 merge window 2015-02-04 11:03:20 -08:00
Makefile usb: isp1760: Move driver from drivers/usb/host/ to drivers/usb/isp1760/ 2015-01-27 09:39:38 -06:00
max3421-hcd.c max3421-hcd: use HUB_CHAR_* 2015-01-25 21:01:12 +08:00
ohci-at91.c USB: host: ohci-at91: Fix wake-up support 2015-01-25 21:06:42 +08:00
ohci-da8xx.c usb: host: drop owner assignment from platform_drivers 2015-01-09 12:31:53 -08:00
ohci-dbg.c USB: OHCI: fix bugs in debug routines 2014-07-17 17:05:07 -07:00
ohci-exynos.c Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
ohci-hcd.c USB: host: Remove ehci-octeon and ohci-octeon drivers 2014-11-25 09:19:28 -08:00
ohci-hub.c ohci-hub: use HUB_CHAR_* 2015-01-25 21:01:12 +08:00
ohci-jz4740.c usb: host: drop owner assignment from platform_drivers 2015-01-09 12:31:53 -08:00
ohci-mem.c USB: OHCI: add I/O watchdog for orphan TDs 2014-07-18 16:34:07 -07:00
ohci-nxp.c usb: host: drop owner assignment from platform_drivers 2014-10-20 16:21:49 +02:00
ohci-omap3.c
ohci-omap.c Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
ohci-pci.c USB: OHCI: fix problem with global suspend on ATI controllers 2014-05-03 17:58:46 -04:00
ohci-platform.c usb: ohci-platform: add support for multiple phys per controller 2015-01-25 21:04:21 +08:00
ohci-ppc-of.c usb: host: drop owner assignment from platform_drivers 2015-01-09 12:31:53 -08:00
ohci-ps3.c
ohci-pxa27x.c Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
ohci-q.c USB: OHCI: add I/O watchdog for orphan TDs 2014-07-18 16:34:07 -07:00
ohci-s3c2410.c ohci-s3c2410: use HUB_CHAR_* 2015-01-25 21:01:13 +08:00
ohci-sa1111.c
ohci-sm501.c usb: host: drop owner assignment from platform_drivers 2015-01-09 12:31:53 -08:00
ohci-spear.c Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
ohci-st.c usb: host: ohci-st: Add OHCI driver support for ST STB devices 2014-09-23 21:35:50 -07:00
ohci-tilegx.c usb: host: drop owner assignment from platform_drivers 2015-01-09 12:31:53 -08:00
ohci-tmio.c usb: host: drop owner assignment from platform_drivers 2015-01-09 12:31:53 -08:00
ohci.h USB: OHCI: Eliminate platform-specific test in ohci.h 2014-11-03 15:38:17 -08:00
oxu210hp-hcd.c oxu210hp-hcd: use HUB_CHAR_* 2015-01-25 21:01:13 +08:00
oxu210hp.h
pci-quirks.c usb: host: pci_quirks: joing string literals 2015-01-31 09:05:06 -08:00
pci-quirks.h usb: pci_quirks: fix sparse 'symbol not declared' warning 2014-05-27 16:25:32 -07:00
r8a66597-hcd.c r8a66597-hcd: use HUB_CHAR_* 2015-01-25 21:01:13 +08:00
r8a66597.h
sl811_cs.c
sl811-hcd.c sl811-hcd: use HUB_CHAR_* 2015-01-25 21:01:13 +08:00
sl811.h
ssb-hcd.c treewide: Remove unnecessary SSB_DEVTABLE_END macro 2015-02-11 14:38:29 -08:00
u132-hcd.c u132-hcd: use HUB_CHAR_* 2015-01-25 21:01:13 +08:00
uhci-debug.c
uhci-grlib.c usb: host: drop owner assignment from platform_drivers 2015-01-09 12:31:53 -08:00
uhci-hcd.c USB: UHCI: don't allocate frame list atomically 2014-07-09 16:16:07 -07:00
uhci-hcd.h
uhci-hub.c uhci-hub: use HUB_CHAR_* 2015-02-03 15:28:32 -08:00
uhci-pci.c
uhci-platform.c usb: host: drop owner assignment from platform_drivers 2015-01-09 12:31:53 -08:00
uhci-q.c
xhci-dbg.c xhci: clean up work to remove unused parameters for functions in xhci-mem.c 2015-01-09 10:05:47 -08:00
xhci-ext-caps.h
xhci-hub.c Merge branch 'pm-runtime' 2014-12-08 20:00:44 +01:00
xhci-mem.c xhci: clean up work to remove unused parameters for functions in xhci-mem.c 2015-01-09 10:05:47 -08:00
xhci-mvebu.c usb: host: xhci-plat: add support for the Armada 375/38x XHCI controllers 2014-05-27 15:40:40 -07:00
xhci-mvebu.h usb: host: xhci-plat: add support for the Armada 375/38x XHCI controllers 2014-05-27 15:40:40 -07:00
xhci-pci.c xhci: Workaround for PME stuck issues in Intel xhci 2015-03-06 09:47:48 -08:00
xhci-plat.c usb: XHCI: platform: Move the Marvell quirks after the enabling the clocks 2015-02-24 08:34:32 -08:00
xhci-rcar.c usb: host: xhci-plat: add support for the R-Car H2 and M2 xHCI controllers 2014-07-09 15:49:10 -07:00
xhci-rcar.h usb: host: xhci-plat: add support for the R-Car H2 and M2 xHCI controllers 2014-07-09 15:49:10 -07:00
xhci-ring.c Revert "xhci: Clear the host side toggle manually when endpoint is 'soft reset'" 2015-03-11 14:13:51 +01:00
xhci-trace.c xhci: Export symbols used by host-controller drivers 2014-10-03 14:44:45 -07:00
xhci-trace.h
xhci.c Revert "xhci: Clear the host side toggle manually when endpoint is 'soft reset'" 2015-03-11 14:13:51 +01:00
xhci.h Revert "xhci: Clear the host side toggle manually when endpoint is 'soft reset'" 2015-03-11 14:13:51 +01:00