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It will cause null-ptr-deref when resource_size(res) invoked,
if platform_get_resource() returns NULL.
Fixes: 499fef09a323 ("reset: uniphier: add USB3 core reset control")
Signed-off-by: Hui Tang <tanghui20@huawei.com>
Reviewed-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Link: https://lore.kernel.org/r/20221114004958.258513-1-tanghui20@huawei.com
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
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Slightly simplify uniphier_glue_reset_probe() and drop
uniphier_glue_reset_remove() by using devm_add_action_or_reset()
for clock and reset cleanup.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Link: https://lore.kernel.org/r/20211215093829.3209416-2-p.zabel@pengutronix.de
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
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This driver already uses the clk_bulk API. Simplify the driver by using
the reset_control_bulk API as well.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Link: https://lore.kernel.org/r/20211215093829.3209416-1-p.zabel@pengutronix.de
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
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Add basic reset data for UniPhier NX1 SoC.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Link: https://lore.kernel.org/r/1633399842-1402-4-git-send-email-hayashi.kunihiko@socionext.com
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
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The reset-simple code can be useful for drivers outside of drivers/reset
that have a few reset controls as part of their features. Let's move it to
include/linux/reset.
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
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Pro5 SoC has same scheme of USB3 reset as Pro4, so the data for Pro5 is
equivalent to Pro4.
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
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Add a reset line included in AHCI glue layer to enable AHCI core
implemented in UniPhier SoCs.
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
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This driver works for controlling the reset lines including USB3
glue layer, however, this can be applied to other glue layers.
Now this patch renames the driver from "reset-uniphier-usb3" to
"reset-uniphier-glue".
At the same time, this changes CONFIG_RESET_UNIPHIER_USB3 to
CONFIG_RESET_UNIPHIER_GLUE.
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
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