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commit 2e75396f1df61e1f1d26d0d703fc7292c4ae4371 upstream. The commitc494a447c1("soc: bcm: bcm2835-power: Refactor ASB control") refactored the ASB control by using a general function to handle both the enable and disable. But this patch introduced a subtle regression: we need to check if !!(readl(base + reg) & ASB_ACK) == enable, not just check if (readl(base + reg) & ASB_ACK) == true. Currently, this is causing an invalid register state in V3D when unloading and loading the driver, because `bcm2835_asb_disable()` will return -ETIMEDOUT and `bcm2835_asb_power_off()` will fail to disable the ASB slave for V3D. Fixes:c494a447c1("soc: bcm: bcm2835-power: Refactor ASB control") Signed-off-by: Maíra Canal <mcanal@igalia.com> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Reviewed-by: Stefan Wahren <stefan.wahren@i2se.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20231024101251.6357-2-mcanal@igalia.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.