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ARM: stm32: Fix SoM and board coding strap GPIO handling on DHSOM

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The variables retaining the strap values have to be initialized, always,
make it so. Moreover, free the requested GPIO list at the end to avoid
wasting memory.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
This commit is contained in:
Marek Vasut 2021-11-13 03:26:39 +01:00 committed by Patrice Chotard
parent e1d7b0b9c5
commit 7c870f8d70
1 changed files with 10 additions and 4 deletions
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14
board/dhelectronics/dh_stm32mp1/board.c
View file

@ -212,34 +212,40 @@ static void board_get_coding_straps(void)
ofnode node;
int i, ret;
brdcode = 0;
ddr3code = 0;
somcode = 0;
node = ofnode_path("/config");
if (!ofnode_valid(node)) {
printf("%s: no /config node?\n", __func__);
return;
}
brdcode = 0;
ddr3code = 0;
somcode = 0;
ret = gpio_request_list_by_name_nodev(node, "dh,som-coding-gpios",
gpio, ARRAY_SIZE(gpio),
GPIOD_IS_IN);
for (i = 0; i < ret; i++)
somcode |= !!dm_gpio_get_value(&(gpio[i])) << i;
gpio_free_list_nodev(gpio, ret);
ret = gpio_request_list_by_name_nodev(node, "dh,ddr3-coding-gpios",
gpio, ARRAY_SIZE(gpio),
GPIOD_IS_IN);
for (i = 0; i < ret; i++)
ddr3code |= !!dm_gpio_get_value(&(gpio[i])) << i;
gpio_free_list_nodev(gpio, ret);
ret = gpio_request_list_by_name_nodev(node, "dh,board-coding-gpios",
gpio, ARRAY_SIZE(gpio),
GPIOD_IS_IN);
for (i = 0; i < ret; i++)
brdcode |= !!dm_gpio_get_value(&(gpio[i])) << i;
gpio_free_list_nodev(gpio, ret);
printf("Code: SoM:rev=%d,ddr3=%d Board:rev=%d\n",
somcode, ddr3code, brdcode);
}