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The TUSB6010 (MUSB) device is picking up some GPIO lines
hardcoded by number and passing on to the TUSB6010 device
when registering it.
Instead of nasty workarounds, provide a GPIO descriptor
table and then make the TUSB6010 MUSB glue driver pick up
the GPIO lines directly, convert it to an IRQ and pass down
to the MUSB driver. OMAP2 is the only system using the
TUSB6010.
Stash the GPIO descriptors in the glue layer and use
then to power up and down the TUSB6010 on-demand, instead
of using boardfile callbacks.
Since the OMAP2 boards are the only boards using the
.set_power() and .board_set_power() callbacks, we can
just delete them as the power is now handled directly
in the TUSB6010 glue code.
Cc: Bin Liu <b-liu@ti.com>
Cc: linux-usb@vger.kernel.org
Fixes: 92bf78b33b0b ("gpio: omap: use dynamic allocation of base")
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230405141009.3400693-11-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230405141009.3400693-10-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20230405141009.3400693-9-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230405141009.3400693-8-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230405141009.3400693-7-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230405141009.3400693-6-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230405141009.3400693-5-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230405141009.3400693-4-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20230405141009.3400693-3-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230405141009.3400693-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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It is preferred to use typed property access functions (i.e.
of_property_read_<type> functions) rather than low-level
of_get_property/of_find_property functions for reading properties. As
part of this, convert of_get_property/of_find_property calls to the
recently added of_property_present() helper when we just want to test
for presence of a property and nothing more.
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230310144728.1545786-1-robh@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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As part of converting RISC-V SOC_FOO symbols to ARCH_FOO to match the
use of such symbols on other architectures, convert the Microchip FPGA
usb glue layer driver to use the new symbol.
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230309204452.969574-6-conor@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Currently the probe routine explicitly compares the compatible string of
the device node to figure out which features and quirks a certain
Allwinner MUSB model requires. This gets harder to maintain for new
SoCs.
Add a struct sunxi_musb_cfg that names the features and quirks
explicitly, and create instances of this struct for every type of MUSB
device we support. Then bind this to the compatible strings via the OF
data feature.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20230201105348.1815461-4-andre.przywara@arm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The suniv SoC has a MUSB controller like the one in A33, but with a SRAM
region to be claimed.
Add support for it.
Signed-off-by: Icenowy Zheng <uwu@icenowy.me>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Link: https://lore.kernel.org/r/20230201105348.1815461-3-andre.przywara@arm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This function only calls mtk_otg_switch_init() when the ->port_mode
is MUSB_OTG so the clean up code should only call mtk_otg_switch_exit()
for that mode.
Fixes: 0990366bab3c ("usb: musb: Add support for MediaTek musb controller")
Signed-off-by: Dan Carpenter <error27@gmail.com>
Link: https://lore.kernel.org/r/Y8/3TqpqiSr0RxFH@kili
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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We need the USB fixes in here and this resolves merge conflicts as
reported in linux-next in the following files:
drivers/usb/host/xhci.c
drivers/usb/host/xhci.h
drivers/usb/typec/ucsi/ucsi.c
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Before calling platform_get_resource() in omap2430_probe(), the 'ret' is
re-assgined to 0, it can't return an error code, if platform_get_resource
fails. Set the error code to -EINVAL to fix this.
Fixes: ffbe2feac59b ("usb: musb: omap2430: Fix probe regression for missing resources")
Cc: stable <stable@kernel.org>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20221230081730.1655616-1-yangyingliang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix to return a negative error code -ENODEV instead of 0 as before
commit 09721ba6daa1 ("usb: musb: da8xx: Call earlier
clk_prepare_enable()") did.
Signed-off-by: Wang Yufen <wangyufen@huawei.com>
Link: https://lore.kernel.org/r/1669473332-14165-1-git-send-email-wangyufen@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The checks for musb->xceiv and musb->xceiv->set_power duplicate those in
usb_phy_set_power(), so there is no need of them. Moreover, not calling
usb_phy_set_power() results in usb_phy_set_charger_current() not being
called, so current USB config max current is not propagated through USB
charger framework and charger drivers may try to draw more current than
allowed or possible.
Fix that by removing those extra checks and calling usb_phy_set_power()
directly.
Tested on Motorola Droid4 and Nokia N900
Fixes: a9081a008f84 ("usb: phy: Add USB charger support")
Cc: stable <stable@kernel.org>
Signed-off-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Link: https://lore.kernel.org/r/1669400475-4762-1-git-send-email-ivo.g.dimitrov.75@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The am35x glue layer is no longer in use and can be dropped. There are no
longer any SoCs passing platform data for it as they are booting using
devicetree.
In general, the am35x SoCs are similar to am335x and ti81xx and can
use the musb_dsps glue layer as long as there is a proper phy driver
available.
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Link: https://lore.kernel.org/r/20221125085506.38127-1-tony@atomide.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Probe for omap2430 glue layer is now broken for interrupt resources in
all cases.
Commit 239071064732 ("partially Revert "usb: musb: Set the DT node on the
child device"") broke probing for SoCs using ti-sysc interconnect target
module as the dt node is not found.
Commit a1a2b7125e10 ("of/platform: Drop static setup of IRQ resource from
DT core") caused omap3 to fail with error "-ENXIO: IRQ mc not found" as
the IRQ resources are no longer automatically populated from devicetree.
Let's fix the issues by calling device_set_of_node_from_dev() only if the
SoC has been updated to probe with ti-sysc. And for legacy SoCs, let's
populate the resources manually as needed.
Note that once we have updated the SoCs to probe with proper devicetree
data in all cases, this is no longer needed. But doing that requires
patching both devicetree and SoC code, so let's fix the probe issues first.
Fixes: a1a2b7125e10 ("of/platform: Drop static setup of IRQ resource from DT core")
Fixes: 239071064732 ("partially Revert "usb: musb: Set the DT node on the child device"")
Cc: H. Nikolaus Schaller <hns@goldelico.com>
Reported-by: Sicelo Mhlongo <absicsz@gmail.com>
Tested-by: Sicelo Mhlongo <absicsz@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Link: https://lore.kernel.org/r/20221118102532.34458-1-tony@atomide.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Support PHYs implemented using the generic PHY framework instead of the
deprecated USB-PHY framework.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20221026182657.146630-7-paul@crapouillou.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The jz4740-musb driver does not really support OTG, so it has no reason
to disable external hubs, especially since it's a system-wide setting
and we don't want external hubs to be disabled for other USB host
controllers.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20221026182657.146630-6-paul@crapouillou.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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When musb->xceiv is not provided but musb->phy is, support setting the
OTG mode (host, peripheral) using the generic PHY framework.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20221026182657.146630-5-paul@crapouillou.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Modify the core so that musb->xceiv is never deferenced without being
checked first.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20221026182657.146630-4-paul@crapouillou.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The musb_otg_state_string() simply calls usb_otg_state_string().
This will make it easier to get rid of the musb->xceiv dependency later.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20221026182657.146630-3-paul@crapouillou.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Instead of manipulating musb->xceiv->otg->state directly, use the newly
introduced musb_get_state() and musb_set_state() inline functions.
Later, these inline functions will be modified to get rid of the
musb->xceiv dependency, which prevents the musb code from using the
generic PHY subsystem.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20221026182657.146630-2-paul@crapouillou.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Commit 32fee1df5110 ("usb: musb: remove unused davinci support") removes
the config USB_TI_CPPI_DMA, but misses some left-over references in
drivers/usb/musb/musb_dma.h.
Remove the left-over dependent on this removed config.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/r/20221031085426.17175-1-lukas.bulwahn@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The musb-davinci driver was only used on dm644x, which got removed
in linux-6.0. The only remaining davinci machines are da8xx
devicetree based and do not use this hardware.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://lore.kernel.org/r/20221019152947.3857217-6-arnd@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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In the probe path, dev_err() can be replaced with dev_err_probe()
which will check if error code is -EPROBE_DEFER and prints the
error name. It also sets the defer probe reason which can be
checked later through debugfs. It's more simple in error path.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20220927072616.913672-6-yangyingliang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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In the probe path, dev_err() can be replaced with dev_err_probe()
which will check if error code is -EPROBE_DEFER and prints the
error name. It also sets the defer probe reason which can be
checked later through debugfs. It's more simple in error path.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20220927072616.913672-5-yangyingliang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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In the probe path, dev_err() can be replaced with dev_err_probe()
which will check if error code is -EPROBE_DEFER and prints the
error name. It also sets the defer probe reason which can be
checked later through debugfs. It's more simple in error path.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20220927072616.913672-4-yangyingliang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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In the probe path, dev_err() can be replaced with dev_err_probe()
which will check if error code is -EPROBE_DEFER and prints the
error name. It also sets the defer probe reason which can be
checked later through debugfs. It's more simple in error path.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20220927072616.913672-3-yangyingliang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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In the probe path, dev_err() can be replaced with dev_err_probe()
which will check if error code is -EPROBE_DEFER and prints the
error name. It also sets the defer probe reason which can be
checked later through debugfs. It's more simple in error path.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20220927072616.913672-2-yangyingliang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The usb function device call musb_gadget_queue() adds the passed
request to musb_ep::req_list,If the (request->length > musb_ep->packet_sz)
and (is_buffer_mapped(req) return false),the rxstate() will copy all data
in fifo to request->buf which may cause request->buf out of bounds.
Fix it by add the length check :
fifocnt = min_t(unsigned, request->length - request->actual, fifocnt);
Signed-off-by: Robin Guo <guoweibin@inspur.com>
Link: https://lore.kernel.org/r/20220906102119.1b071d07a8391ff115e6d1ef@inspur.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Turning on NOP_USB_XCEIV as builtin broke the TUSB6010 driver because
of an older issue with the depencency.
It is not necessary to forbid NOP_USB_XCEIV=y in combination with
USB_MUSB_HDRC=m, but only the reverse, which causes the link failure
from the original Kconfig change.
Use the correct dependency to still allow NOP_USB_XCEIV=n or
NOP_USB_XCEIV=y but forbid NOP_USB_XCEIV=m when USB_MUSB_HDRC=m
to fix the multi_v7_defconfig for tusb.
Fixes: ab37a7a890c1 ("ARM: multi_v7_defconfig: Make NOP_USB_XCEIV driver built-in")
Fixes: c0442479652b ("usb: musb: Fix randconfig build issues for Kconfig options")
Cc: stable <stable@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20220818135737.3143895-10-arnd@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing updates from Steven Rostedt:
- Runtime verification infrastructure
This is the biggest change here. It introduces the runtime
verification that is necessary for running Linux on safety critical
systems.
It allows for deterministic automata models to be inserted into the
kernel that will attach to tracepoints, where the information on
these tracepoints will move the model from state to state.
If a state is encountered that does not belong to the model, it will
then activate a given reactor, that could just inform the user or
even panic the kernel (for which safety critical systems will detect
and can recover from).
- Two monitor models are also added: Wakeup In Preemptive (WIP - not to
be confused with "work in progress"), and Wakeup While Not Running
(WWNR).
- Added __vstring() helper to the TRACE_EVENT() macro to replace
several vsnprintf() usages that were all doing it wrong.
- eprobes now can have their event autogenerated when the event name is
left off.
- The rest is various cleanups and fixes.
* tag 'trace-v6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (50 commits)
rv: Unlock on error path in rv_unregister_reactor()
tracing: Use alignof__(struct {type b;}) instead of offsetof()
tracing/eprobe: Show syntax error logs in error_log file
scripts/tracing: Fix typo 'the the' in comment
tracepoints: It is CONFIG_TRACEPOINTS not CONFIG_TRACEPOINT
tracing: Use free_trace_buffer() in allocate_trace_buffers()
tracing: Use a struct alignof to determine trace event field alignment
rv/reactor: Add the panic reactor
rv/reactor: Add the printk reactor
rv/monitor: Add the wwnr monitor
rv/monitor: Add the wip monitor
rv/monitor: Add the wip monitor skeleton created by dot2k
Documentation/rv: Add deterministic automata instrumentation documentation
Documentation/rv: Add deterministic automata monitor synthesis documentation
tools/rv: Add dot2k
Documentation/rv: Add deterministic automaton documentation
tools/rv: Add dot2c
Documentation/rv: Add a basic documentation
rv/include: Add instrumentation helper functions
rv/include: Add deterministic automata monitor definition via C macros
...
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Delete the redundant word 'mode'.
Delete the redundant word 'than'.
Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com>
Link: https://lore.kernel.org/r/20220716134457.46535-1-yuanjilin@cdjrlc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Instead of open coding a __dynamic_array() with a fixed length (which
defeats the purpose of the dynamic array in the first place). Use the new
__vstring() helper that will use a va_list and only write enough of the
string into the ring buffer that is needed.
Link: https://lkml.kernel.org/r/20220705224750.532345354@goodmis.org
Cc: Bin Liu <b-liu@ti.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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clock source is prepared and enabled by clk_prepare_enable()
in probe function, but no disable or unprepare in remove.
Fixes: 7a96b6ea90a4 ("usb: musb: Add support for PolarFire SoC's musb controller")
Reported-by: Hulk Robot <hulkci@huawei.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20220628140527.1404439-1-yangyingliang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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These error paths return success but they need to return a negative
error code.
Fixes: 7a96b6ea90a4 ("usb: musb: Add support for PolarFire SoC's musb controller")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/YrVmLEc/FOEzNdzj@kili
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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In musb_{save|restore}_context() the expression '&musb->endpoints[i]' just
cannot be NULL, so the checks have no sense at all -- after dropping them,
the local variables 'hw_ep' are no longer necessary, so drop them as well.
Found by Linux Verification Center (linuxtesting.org) with the SVACE static
analysis tool.
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Link: https://lore.kernel.org/r/3f8f60d9-f1b5-6b2c-1222-39b156151a22@omp.ru
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add support for Microchips's PolarFire SoC's musb controller in host,
peripheral and otg mode.
Tested-by: Valentina Fernandez <valentina.fernandezalanis@microchip.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20220613114642.1615292-2-conor.dooley@microchip.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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In musb_remove() cancel_delayed_work_sync(&musb->irq_work)
is called which flush the irq_work work queue.
After cancel delayed work, musb_remove() call
musb_gadget_cleanup->usb_del_gadget_udc->usb_del_gadget
->usb_gadget_remove_driver->usb_gadget_udc_stop->udc
->gadget->ops->udc_stop(udc->gadget);
Where musb_gadget_stop() call "schedule_delayed_work(&musb->irq_work, 0)”
which is already cancel/flush.
So remove the schedule_delayed_work(&musb->irq_work, 0);
from musb_gadget_stop function.
Signed-off-by: Saurav Girepunje <saurav.girepunje@gmail.com>
Link: https://lore.kernel.org/r/YqDnxkWZV2KfZh5q@Sauravs-MacBook-Air.local
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This driver uses three clocks and there's no special handling, they're
either enabled or disabled sequentially: migrate to the clk_bulk API
to simplify clock handling.
This patch brings no functional changes.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220404145558.93340-1-angelogioacchino.delregno@collabora.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The device_node pointer is returned by of_parse_phandle() with refcount
incremented. We should use of_node_put() on it when done.
Fixes: 8934d3e4d0e7 ("usb: musb: omap2430: Don't use omap_get_control_dev()")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220309111033.24487-1-linmq006@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This reverts the omap2430 changes of
commit cf081d009c44 ("usb: musb: Set the DT node on the child device")
Since v5.17-rc1, musb is broken on the gta04 and openpandora devices
(omap3530/dm3730). BeagleBone Black (am335x) seems to work.
Symptoms of this bug are
a) main symptom
[ 21.336517] using random host ethernet address
[ 21.341430] using host ethernet address: 32:70:05:18:ff:78
[ 21.341461] using self ethernet address: 46:10:3a:b3:af:d9
[ 21.358184] usb0: HOST MAC 32:70:05:18:ff:78
[ 21.376678] usb0: MAC 46:10:3a:b3:af:d9
[ 21.388305] using random self ethernet address
[ 21.393371] using random host ethernet address
[ 21.398162] g_ether gadget: Ethernet Gadget, version: Memorial Day 2008
[ 21.421081] g_ether gadget: g_ether ready
[ 21.492156] musb-hdrc musb-hdrc.1.auto: Could not enable: -22
[ 21.691345] musb-hdrc musb-hdrc.1.auto: Could not enable: -22
[ 21.803192] musb-hdrc musb-hdrc.1.auto: Could not enable: -22
[ 21.819427] musb-hdrc musb-hdrc.1.auto: Could not enable: -22
[ 22.124450] musb-hdrc musb-hdrc.1.auto: Could not enable: -22
[ 22.168518] musb-hdrc musb-hdrc.1.auto: Could not enable: -22
[ 22.179382] musb-hdrc musb-hdrc.1.auto: Could not enable: -22
[ 23.213592] musb-hdrc musb-hdrc.1.auto: pm runtime get failed in musb_gadget_queue
[ 23.221832] musb-hdrc musb-hdrc.1.auto: Could not enable: -22
[ 23.227905] musb-hdrc musb-hdrc.1.auto: Could not enable: -22
[ 23.239440] musb-hdrc musb-hdrc.1.auto: Could not enable: -22
[ 23.401000] musb-hdrc musb-hdrc.1.auto: Could not enable: -22
[ 23.407073] musb-hdrc musb-hdrc.1.auto: Could not enable: -22
[ 23.426361] musb-hdrc musb-hdrc.1.auto: Could not enable: -22
[ 23.734466] musb-hdrc musb-hdrc.1.auto: pm runtime get failed in musb_gadget_queue
[ 23.742462] musb-hdrc musb-hdrc.1.auto: pm runtime get failed in musb_gadget_queue
[ 23.750396] musb-hdrc musb-hdrc.1.auto: pm runtime get failed in musb_gadget_queue
... (repeats with high frequency)
This stops if the USB cable is unplugged and restarts if it is plugged in again.
b) also found in the log
[ 6.498107] ------------[ cut here ]------------
[ 6.502960] WARNING: CPU: 0 PID: 868 at arch/arm/mach-omap2/omap_hwmod.c:1885 _enable+0x50/0x234
[ 6.512207] omap_hwmod: usb_otg_hs: enabled state can only be entered from initialized, idle, or disabled state
[ 6.522766] Modules linked in: omap2430(+) bmp280_i2c bmp280 itg3200 at24 tsc2007 leds_tca6507 bma180 hmc5843_i2c hmc5843_core industrialio_triggered_buffer lis3lv02d_i2c kfifo_buf lis3lv02d phy_twl4030_usb snd_soc_omap_mcbsp snd_soc_ti_sdma musb_hdrc snd_soc_twl4030 gnss_sirf twl4030_vibra twl4030_madc twl4030_charger twl4030_pwrbutton gnss industrialio ehci_omap omapdrm drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops drm drm_panel_orientation_quirks cec
[ 6.566436] CPU: 0 PID: 868 Comm: udevd Not tainted 5.16.0-rc5-letux+ #8251
[ 6.573730] Hardware name: Generic OMAP36xx (Flattened Device Tree)
[ 6.580322] [<c010ed30>] (unwind_backtrace) from [<c010a1d0>] (show_stack+0x10/0x14)
[ 6.588470] [<c010a1d0>] (show_stack) from [<c0897c14>] (dump_stack_lvl+0x40/0x4c)
[ 6.596405] [<c0897c14>] (dump_stack_lvl) from [<c0130cc4>] (__warn+0xb4/0xdc)
[ 6.604003] [<c0130cc4>] (__warn) from [<c0130d5c>] (warn_slowpath_fmt+0x70/0x9c)
[ 6.611846] [<c0130d5c>] (warn_slowpath_fmt) from [<c011f4d4>] (_enable+0x50/0x234)
[ 6.619903] [<c011f4d4>] (_enable) from [<c012081c>] (omap_hwmod_enable+0x28/0x40)
[ 6.627838] [<c012081c>] (omap_hwmod_enable) from [<c0120ff4>] (omap_device_enable+0x4c/0x78)
[ 6.636779] [<c0120ff4>] (omap_device_enable) from [<c0121030>] (_od_runtime_resume+0x10/0x3c)
[ 6.645812] [<c0121030>] (_od_runtime_resume) from [<c05c688c>] (__rpm_callback+0x3c/0xf4)
[ 6.654510] [<c05c688c>] (__rpm_callback) from [<c05c6994>] (rpm_callback+0x50/0x54)
[ 6.662628] [<c05c6994>] (rpm_callback) from [<c05c66b0>] (rpm_resume+0x448/0x4e4)
[ 6.670593] [<c05c66b0>] (rpm_resume) from [<c05c6784>] (__pm_runtime_resume+0x38/0x50)
[ 6.678985] [<c05c6784>] (__pm_runtime_resume) from [<bf14ab20>] (musb_init_controller+0x350/0xa5c [musb_hdrc])
[ 6.689727] [<bf14ab20>] (musb_init_controller [musb_hdrc]) from [<c05bccb8>] (platform_probe+0x58/0xa8)
[ 6.699737] [<c05bccb8>] (platform_probe) from [<c05badf0>] (really_probe+0x170/0x2fc)
[ 6.708068] [<c05badf0>] (really_probe) from [<c05bb040>] (__driver_probe_device+0xc4/0xd8)
[ 6.716827] [<c05bb040>] (__driver_probe_device) from [<c05bb084>] (driver_probe_device+0x30/0xac)
[ 6.726226] [<c05bb084>] (driver_probe_device) from [<c05bb3d0>] (__device_attach_driver+0x94/0xb4)
[ 6.735717] [<c05bb3d0>] (__device_attach_driver) from [<c05b93f8>] (bus_for_each_drv+0xa0/0xb4)
[ 6.744934] [<c05b93f8>] (bus_for_each_drv) from [<c05bb248>] (__device_attach+0xc0/0x134)
[ 6.753631] [<c05bb248>] (__device_attach) from [<c05b9fcc>] (bus_probe_device+0x28/0x80)
[ 6.762207] [<c05b9fcc>] (bus_probe_device) from [<c05b7e40>] (device_add+0x5fc/0x788)
[ 6.770507] [<c05b7e40>] (device_add) from [<c05bd240>] (platform_device_add+0x70/0x1bc)
[ 6.779022] [<c05bd240>] (platform_device_add) from [<bf177830>] (omap2430_probe+0x260/0x2d4 [omap2430])
[ 6.789001] [<bf177830>] (omap2430_probe [omap2430]) from [<c05bccb8>] (platform_probe+0x58/0xa8)
[ 6.798309] [<c05bccb8>] (platform_probe) from [<c05badf0>] (really_probe+0x170/0x2fc)
[ 6.806610] [<c05badf0>] (really_probe) from [<c05bb040>] (__driver_probe_device+0xc4/0xd8)
[ 6.815399] [<c05bb040>] (__driver_probe_device) from [<c05bb084>] (driver_probe_device+0x30/0xac)
[ 6.824798] [<c05bb084>] (driver_probe_device) from [<c05bb4b4>] (__driver_attach+0xc4/0xd8)
[ 6.833648] [<c05bb4b4>] (__driver_attach) from [<c05b9308>] (bus_for_each_dev+0x64/0xa0)
[ 6.842224] [<c05b9308>] (bus_for_each_dev) from [<c05ba248>] (bus_add_driver+0x148/0x1a4)
[ 6.850891] [<c05ba248>] (bus_add_driver) from [<c05bbd1c>] (driver_register+0xb4/0xf8)
[ 6.859313] [<c05bbd1c>] (driver_register) from [<c0101f54>] (do_one_initcall+0x90/0x1c8)
[ 6.867889] [<c0101f54>] (do_one_initcall) from [<c0893968>] (do_init_module+0x4c/0x204)
[ 6.876373] [<c0893968>] (do_init_module) from [<c01b4c30>] (load_module+0x13f0/0x1928)
[ 6.884796] [<c01b4c30>] (load_module) from [<c01b53a0>] (sys_finit_module+0xa0/0xc0)
[ 6.893005] [<c01b53a0>] (sys_finit_module) from [<c0100080>] (ret_fast_syscall+0x0/0x54)
[ 6.901580] Exception stack(0xc2807fa8 to 0xc2807ff0)
[ 6.906890] 7fa0: b6e517d4 00052068 00000006 b6e509f8 00000000 b6e5131c
[ 6.915466] 7fc0: b6e517d4 00052068 cd718000 0000017b 00020000 00037f78 00050048 00063368
[ 6.924011] 7fe0: bed8fef0 bed8fee0 b6e4ac4b b6f55a42
[ 6.929321] ---[ end trace d715ff121b58763c ]---
c) git bisect result on testing for "musb-hdrc" in the console log:
cf081d009c447647c6b36aced535ca427dbebe72 is the first bad commit
commit cf081d009c447647c6b36aced535ca427dbebe72
Author: Rob Herring <robh@kernel.org>
Date: Wed Dec 15 17:07:57 2021 -0600
usb: musb: Set the DT node on the child device
The musb glue drivers just copy the glue resources to the musb child device.
Instead, set the musb child device's DT node pointer to the parent device's
node so that platform_get_irq_byname() can find the resources in the DT.
This removes the need for statically populating the IRQ resources from the
DT which has been deprecated for some time.
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20211215230756.2009115-3-robh@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/musb/am35x.c | 2 ++
drivers/usb/musb/da8xx.c | 2 ++
drivers/usb/musb/jz4740.c | 1 +
drivers/usb/musb/mediatek.c | 2 ++
drivers/usb/musb/omap2430.c | 1 +
drivers/usb/musb/ux500.c | 1 +
6 files changed, 9 insertions(+)
Reverting this patch makes musb work again as before.
Fixes: cf081d009c44 ("usb: musb: Set the DT node on the child device")
Cc: Rob Herring <robh@kernel.org>
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Link: https://lore.kernel.org/r/f62f5fc11f9ecae7e57f3fd66939e051bd3b11fc.1646744166.git.hns@goldelico.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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platform_get_resource_byname(pdev, IORESOURCE_IRQ, ..) relies on static
allocation of IRQ resources in DT core code, this causes an issue
when using hierarchical interrupt domains using "interrupts" property
in the node as this bypasses the hierarchical setup and messes up the
irq chaining.
In preparation for removal of static setup of IRQ resource from DT core
code use platform_get_irq_byname().
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/20211220010411.12075-7-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The musb glue drivers just copy the glue resources to the musb child device.
Instead, set the musb child device's DT node pointer to the parent device's
node so that platform_get_irq_byname() can find the resources in the DT.
This removes the need for statically populating the IRQ resources from the
DT which has been deprecated for some time.
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20211215230756.2009115-3-robh@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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