mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-05-02 13:23:35 -04:00
6f6fd690de
Consensus on the mailing lists is that panels shouldn't use a table of init commands but should instead use init functions. We'll use the same concepts as the recently introduced mipi_dsi_generic_write_seq_multi() to make this clean/easy and also not bloat the driver too much. Measuring before/after this change: $ scripts/bloat-o-meter \ .../before/panel-innolux-p079zca.ko \ .../after/panel-innolux-p079zca.ko add/remove: 3/2 grow/shrink: 0/1 up/down: 2356/-1944 (412) Function old new delta innolux_p097pfg_init - 1772 +1772 innolux_p097pfg_init.d - 480 +480 innolux_panel_write_multi - 104 +104 innolux_panel_prepare 412 308 -104 .compoundliteral 480 - -480 innolux_p097pfg_init_cmds 1360 - -1360 Total: Before=5802, After=6214, chg +7.10% Note that, unlike some other drivers, we actually make this panel driver _bigger_ by using the new functions. This is because the innolux-p079zca panel driver didn't have as complex of a table and thus the old table was more efficient than the code. The bloat is still not giant (only 412 bytes). Also note that we can't direclty use mipi_dsi_generic_write_seq_multi() here because we need to deal with the crazy "nop" that this driver sends after all commands. This means that we have to write code that is "inspired" by the new macros. Since we're touching all the tables, let's also convert hex numbers to lower case as per kernel conventions. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Douglas Anderson <dianders@chromium.org> Link: https://lore.kernel.org/r/20240514102056.v5.9.I947e28c81f9ef7dcd3add6e193be72d6f8ea086f@changeid Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20240514102056.v5.9.I947e28c81f9ef7dcd3add6e193be72d6f8ea086f@changeid
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 reStructuredText 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.