8a74a53ebb
The following structures are not modified in these drivers. - struct meson_bank - struct meson_pmx_bank - struct meson_pmx_func - struct meson_pmx_group - struct meson_pinctrl_data - struct meson_axg_pmx_data Constifying these structures moves some data to a read-only section, so increase overall security. On a x86_64, with allmodconfig: Before: ====== text data bss dec hex filename 10818 11696 0 22514 57f2 drivers/pinctrl/meson/pinctrl-amlogic-c3.o 17198 17680 0 34878 883e drivers/pinctrl/meson/pinctrl-amlogic-t7.o 14161 11200 0 25361 6311 drivers/pinctrl/meson/pinctrl-meson8b.o 17348 12512 0 29860 74a4 drivers/pinctrl/meson/pinctrl-meson8.o 3070 324 0 3394 d42 drivers/pinctrl/meson/pinctrl-meson8-pmx.o 9317 9648 0 18965 4a15 drivers/pinctrl/meson/pinctrl-meson-a1.o 12115 11664 0 23779 5ce3 drivers/pinctrl/meson/pinctrl-meson-axg.o 2470 120 0 2590 a1e drivers/pinctrl/meson/pinctrl-meson-axg-pmx.o 15125 15224 0 30349 768d drivers/pinctrl/meson/pinctrl-meson-g12a.o 13800 10160 0 23960 5d98 drivers/pinctrl/meson/pinctrl-meson-gxbb.o 13040 9648 0 22688 58a0 drivers/pinctrl/meson/pinctrl-meson-gxl.o 20507 1132 48 21687 54b7 drivers/pinctrl/meson/pinctrl-meson.o 12212 12880 0 25092 6204 drivers/pinctrl/meson/pinctrl-meson-s4.o After: ===== text data bss dec hex filename 22242 248 0 22490 57da drivers/pinctrl/meson/pinctrl-amlogic-c3.o 34638 248 0 34886 8846 drivers/pinctrl/meson/pinctrl-amlogic-t7.o 25137 232 0 25369 6319 drivers/pinctrl/meson/pinctrl-meson8b.o 29604 232 0 29836 748c drivers/pinctrl/meson/pinctrl-meson8.o 3070 324 0 3394 d42 drivers/pinctrl/meson/pinctrl-meson8-pmx.o 18725 248 0 18973 4a1d drivers/pinctrl/meson/pinctrl-meson-a1.o 23539 248 0 23787 5ceb drivers/pinctrl/meson/pinctrl-meson-axg.o 2470 120 0 2590 a1e drivers/pinctrl/meson/pinctrl-meson-axg-pmx.o 30101 256 0 30357 7695 drivers/pinctrl/meson/pinctrl-meson-g12a.o 23688 248 0 23936 5d80 drivers/pinctrl/meson/pinctrl-meson-gxbb.o 22416 248 0 22664 5888 drivers/pinctrl/meson/pinctrl-meson-gxl.o 20507 1132 48 21687 54b7 drivers/pinctrl/meson/pinctrl-meson.o 24820 248 0 25068 61ec drivers/pinctrl/meson/pinctrl-meson-s4.o Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Jerome Brunet <jbrunet@baylibre.com> Tested-by: Jerome Brunet <jbrunet@baylibre.com> Link: https://lore.kernel.org/f74e326bd7d48003c06219545bad7c2ef1a84bf8.1723053850.git.christophe.jaillet@wanadoo.fr Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
63 lines
1.3 KiB
C
63 lines
1.3 KiB
C
/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
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/*
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* Copyright (c) 2017 Baylibre SAS.
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* Author: Jerome Brunet <jbrunet@baylibre.com>
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*
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* Copyright (c) 2017 Amlogic, Inc. All rights reserved.
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* Author: Xingyu Chen <xingyu.chen@amlogic.com>
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*
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*/
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struct meson_pmx_bank {
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const char *name;
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unsigned int first;
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unsigned int last;
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unsigned int reg;
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unsigned int offset;
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};
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struct meson_axg_pmx_data {
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const struct meson_pmx_bank *pmx_banks;
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unsigned int num_pmx_banks;
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};
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#define BANK_PMX(n, f, l, r, o) \
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{ \
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.name = n, \
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.first = f, \
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.last = l, \
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.reg = r, \
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.offset = o, \
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}
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struct meson_pmx_axg_data {
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unsigned int func;
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};
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#define PMX_DATA(f) \
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{ \
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.func = f, \
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}
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#define GROUP(grp, f) \
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{ \
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.name = #grp, \
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.pins = grp ## _pins, \
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.num_pins = ARRAY_SIZE(grp ## _pins), \
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.data = (const struct meson_pmx_axg_data[]){ \
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PMX_DATA(f), \
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}, \
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}
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#define GPIO_GROUP(gpio) \
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{ \
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.name = #gpio, \
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.pins = (const unsigned int[]){ gpio }, \
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.num_pins = 1, \
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.data = (const struct meson_pmx_axg_data[]){ \
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PMX_DATA(0), \
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}, \
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}
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extern const struct pinmux_ops meson_axg_pmx_ops;
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