diff options
| author | Geert Uytterhoeven <geert+renesas@glider.be> | 2021-12-23 15:56:26 +0100 |
|---|---|---|
| committer | Geert Uytterhoeven <geert+renesas@glider.be> | 2022-02-22 09:57:19 +0100 |
| commit | 4704797eb2f1a9f84a9468a8e3fb9733540fca94 (patch) | |
| tree | 93243307a2508f80559c093dbe26642142add1db /drivers/pinctrl/renesas | |
| parent | 6bfbaec7de9ec83c3a2f82f5dc9a2c7eb6c74041 (diff) | |
| download | linux-4704797eb2f1a9f84a9468a8e3fb9733540fca94.tar.gz | |
pinctrl: renesas: checker: Check drive pin conflicts
Check that there is only a single entry for each pin with drive strength
capabilities.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/382206e737710afd3059abe75bc41e324823e657.1640270559.git.geert+renesas@glider.be
Diffstat (limited to 'drivers/pinctrl/renesas')
| -rw-r--r-- | drivers/pinctrl/renesas/core.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/drivers/pinctrl/renesas/core.c b/drivers/pinctrl/renesas/core.c index 1e0b21428e83..c252eb5c9755 100644 --- a/drivers/pinctrl/renesas/core.c +++ b/drivers/pinctrl/renesas/core.c @@ -1154,8 +1154,26 @@ static void __init sh_pfc_check_info(const struct sh_pfc_soc_info *info) sh_pfc_check_cfg_reg(drvname, &info->cfg_regs[i]); /* Check drive strength registers */ - for (i = 0; info->drive_regs && info->drive_regs[i].reg; i++) - sh_pfc_check_drive_reg(info, &info->drive_regs[i]); + for (i = 0; drive_regs && drive_regs[i].reg; i++) + sh_pfc_check_drive_reg(info, &drive_regs[i]); + + for (i = 0; drive_regs && drive_regs[i / 8].reg; i++) { + if (!drive_regs[i / 8].fields[i % 8].pin && + !drive_regs[i / 8].fields[i % 8].offset && + !drive_regs[i / 8].fields[i % 8].size) + continue; + + for (j = 0; j < i; j++) { + if (drive_regs[i / 8].fields[i % 8].pin == + drive_regs[j / 8].fields[j % 8].pin && + drive_regs[j / 8].fields[j % 8].offset && + drive_regs[j / 8].fields[j % 8].size) { + sh_pfc_err("drive_reg 0x%x:%u/0x%x:%u: pin conflict\n", + drive_regs[i / 8].reg, i % 8, + drive_regs[j / 8].reg, j % 8); + } + } + } /* Check bias registers */ for (i = 0; bias_regs && (bias_regs[i].puen || bias_regs[i].pud); i++) |