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@xxxxxxxxx>
---
drivers/pinctrl/renesas/core.c | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/drivers/pinctrl/renesas/core.c b/drivers/pinctrl/renesas/core.c
index ef88359ddf5c0f2a..1e0b21428e83c549 100644
--- a/drivers/pinctrl/renesas/core.c
+++ b/drivers/pinctrl/renesas/core.c
@@ -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);
--
2.25.1
