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3cb2fddd30
Backport new features for MediaTek pinctrl/pinconf drivers from upstream. This will serve as the base to improve pinconf bias/pull-up/pull-down on MT7981 and MT7986, and also prepare for upcoming support for MT7988. Signed-off-by: Daniel Golle <daniel@makrotopia.org>
94 lines
3.0 KiB
Diff
94 lines
3.0 KiB
Diff
From d8b94c9ff96c2024a527086d850eb0b314337ff9 Mon Sep 17 00:00:00 2001
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From: Sam Shih <sam.shih@mediatek.com>
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Date: Tue, 14 Sep 2021 16:51:32 +0800
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Subject: [PATCH] pinctrl: mediatek: moore: check if pin_desc is valid before
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use
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Certain SoC are missing the middle part gpios in consecutive pins,
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it's better to check if mtk_pin_desc is a valid pin for the extensibility
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Signed-off-by: Sam Shih <sam.shih@mediatek.com>
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Acked-by: Sean Wang <sean.wang@mediatek.com>
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Link: https://lore.kernel.org/r/20210914085137.31761-5-sam.shih@mediatek.com
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Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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---
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drivers/pinctrl/mediatek/pinctrl-moore.c | 18 ++++++++++++++++++
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1 file changed, 18 insertions(+)
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--- a/drivers/pinctrl/mediatek/pinctrl-moore.c
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+++ b/drivers/pinctrl/mediatek/pinctrl-moore.c
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@@ -60,6 +60,8 @@ static int mtk_pinmux_set_mux(struct pin
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int pin = grp->pins[i];
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desc = (const struct mtk_pin_desc *)&hw->soc->pins[pin];
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+ if (!desc->name)
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+ return -ENOTSUPP;
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mtk_hw_set_value(hw, desc, PINCTRL_PIN_REG_MODE,
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pin_modes[i]);
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@@ -76,6 +78,8 @@ static int mtk_pinmux_gpio_request_enabl
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const struct mtk_pin_desc *desc;
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desc = (const struct mtk_pin_desc *)&hw->soc->pins[pin];
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+ if (!desc->name)
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+ return -ENOTSUPP;
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return mtk_hw_set_value(hw, desc, PINCTRL_PIN_REG_MODE,
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hw->soc->gpio_m);
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@@ -89,6 +93,8 @@ static int mtk_pinmux_gpio_set_direction
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const struct mtk_pin_desc *desc;
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desc = (const struct mtk_pin_desc *)&hw->soc->pins[pin];
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+ if (!desc->name)
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+ return -ENOTSUPP;
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/* hardware would take 0 as input direction */
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return mtk_hw_set_value(hw, desc, PINCTRL_PIN_REG_DIR, !input);
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@@ -103,6 +109,8 @@ static int mtk_pinconf_get(struct pinctr
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const struct mtk_pin_desc *desc;
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desc = (const struct mtk_pin_desc *)&hw->soc->pins[pin];
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+ if (!desc->name)
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+ return -ENOTSUPP;
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switch (param) {
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case PIN_CONFIG_BIAS_DISABLE:
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@@ -218,6 +226,8 @@ static int mtk_pinconf_set(struct pinctr
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int cfg, err = 0;
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desc = (const struct mtk_pin_desc *)&hw->soc->pins[pin];
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+ if (!desc->name)
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+ return -ENOTSUPP;
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for (cfg = 0; cfg < num_configs; cfg++) {
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param = pinconf_to_config_param(configs[cfg]);
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@@ -435,6 +445,8 @@ static int mtk_gpio_get(struct gpio_chip
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int value, err;
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desc = (const struct mtk_pin_desc *)&hw->soc->pins[gpio];
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+ if (!desc->name)
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+ return -ENOTSUPP;
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err = mtk_hw_get_value(hw, desc, PINCTRL_PIN_REG_DI, &value);
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if (err)
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@@ -449,6 +461,10 @@ static void mtk_gpio_set(struct gpio_chi
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const struct mtk_pin_desc *desc;
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desc = (const struct mtk_pin_desc *)&hw->soc->pins[gpio];
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+ if (!desc->name) {
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+ dev_err(hw->dev, "Failed to set gpio %d\n", gpio);
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+ return;
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+ }
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mtk_hw_set_value(hw, desc, PINCTRL_PIN_REG_DO, !!value);
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}
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@@ -490,6 +506,8 @@ static int mtk_gpio_set_config(struct gp
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u32 debounce;
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desc = (const struct mtk_pin_desc *)&hw->soc->pins[offset];
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+ if (!desc->name)
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+ return -ENOTSUPP;
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if (!hw->eint ||
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pinconf_to_config_param(config) != PIN_CONFIG_INPUT_DEBOUNCE ||
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