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429188f0bc
Most PMIC-s use only a single i2c-address, so after verifying the i2c-address matches, we can simply pass the call to regmap_update_bits. This commit adds support for this and hooks this up for the xpower AXP288 PMIC by setting the new pmic_i2c_address field. This fixes the following errors on display on / off on a Jumper Ezpad mini 3 and an Onda V80 plus tablet, both of which use the AXP288: intel_soc_pmic_exec_mipi_pmic_seq_element: Not implemented intel_soc_pmic_exec_mipi_pmic_seq_element: i2c-addr: 0x34 reg-addr ... [drm:mipi_exec_pmic [i915]] *ERROR* mipi_exec_pmic failed, error: -95 Instead of these errors on both devices we now correctly turn on / off DLDO3 (through direct register manipulation). On the Onda V80 plus this fixes an issue with the backlight being brighter around the borders after an off / on cycle. This should also help to save some power when the display is off. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190107111556.4510-4-hdegoede@redhat.com |
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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.