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| author | Geert Uytterhoeven <geert+renesas@glider.be> | 2021-12-23 15:28:20 +0100 |
|---|---|---|
| committer | Geert Uytterhoeven <geert+renesas@glider.be> | 2022-02-22 09:55:56 +0100 |
| commit | efe80cdfabe15b9d51d5eca8f88ab3a89b49a768 (patch) | |
| tree | 788140c59c9e18eb912203dcb48c1e31a8c98a86 | |
| parent | 2e08ab0427fe3e33a92a37cfe3b6db340ab7397f (diff) | |
| download | linux-efe80cdfabe15b9d51d5eca8f88ab3a89b49a768.tar.bz2 | |
pinctrl: renesas: r8a7794: Add range checking to .pin_to_pocctrl()
The .pin_to_pocctrl() implementation for R-Car E2 does not perform a
full range check, unlike on all other SoCs. Add the range check, so the
checker can validate better the consistency of the pin control tables.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/d23767ad7152327654192d7191f4b8ae19493966.1640269510.git.geert+renesas@glider.be
| -rw-r--r-- | drivers/pinctrl/renesas/pfc-r8a7794.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/pinctrl/renesas/pfc-r8a7794.c b/drivers/pinctrl/renesas/pfc-r8a7794.c index fbb5b3b68f34..08a4269565e2 100644 --- a/drivers/pinctrl/renesas/pfc-r8a7794.c +++ b/drivers/pinctrl/renesas/pfc-r8a7794.c @@ -5623,6 +5623,9 @@ static const struct pinmux_cfg_reg pinmux_config_regs[] = { static int r8a7794_pin_to_pocctrl(struct sh_pfc *pfc, unsigned int pin, u32 *pocctrl) { + if (pin < RCAR_GP_PIN(6, 0) || pin > RCAR_GP_PIN(6, 23)) + return -EINVAL; + *pocctrl = 0xe606006c; switch (pin & 0x1f) { |