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pinctrl: renesas: checker: Check bias pin conflicts

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Check that there is only a single entry for each pin with pull-up and/or
pull-down capabilities.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/dbda76f342258f8029f0420fbe3f341a9abd6f01.1640270559.git.geert+renesas@glider.be
This commit is contained in:
Geert Uytterhoeven 2021-12-23 15:56:25 +01:00
parent 8d1c50b801
commit 6bfbaec7de
1 changed files with 22 additions and 0 deletions
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22
drivers/pinctrl/renesas/core.c
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@ -1161,6 +1161,28 @@ static void __init sh_pfc_check_info(const struct sh_pfc_soc_info *info)
for (i = 0; bias_regs && (bias_regs[i].puen || bias_regs[i].pud); i++)
sh_pfc_check_bias_reg(info, &bias_regs[i]);
for (i = 0; bias_regs &&
(bias_regs[i / 32].puen || bias_regs[i / 32].pud); i++) {
if (bias_regs[i / 32].pins[i % 32] == SH_PFC_PIN_NONE)
continue;
for (j = 0; j < i; j++) {
if (bias_regs[i / 32].pins[i % 32] !=
bias_regs[j / 32].pins[j % 32])
continue;
if (bias_regs[i / 32].puen && bias_regs[j / 32].puen)
sh_pfc_err("bias_reg 0x%x:%u/0x%x:%u: pin conflict\n",
bias_regs[i / 32].puen, i % 32,
bias_regs[j / 32].puen, j % 32);
if (bias_regs[i / 32].pud && bias_regs[j / 32].pud)
sh_pfc_err("bias_reg 0x%x:%u/0x%x:%u: pin conflict\n",
bias_regs[i / 32].pud, i % 32,
bias_regs[j / 32].pud, j % 32);
}
}
/* Check ioctrl registers */
for (i = 0; info->ioctrl_regs && info->ioctrl_regs[i].reg; i++)
sh_pfc_check_reg(drvname, info->ioctrl_regs[i].reg, U32_MAX);