From f4e09e8bfd24ffcf5cbce99a76ae0a18f0419189 Mon Sep 17 00:00:00 2001 From: Mattijs Korpershoek Date: Mon, 7 Feb 2022 21:44:03 -0800 Subject: Input: mtk-pmic-keys - use get_irq_byname() instead of index Some pmics of the mt6397 family (such as MT6358), have two IRQs per physical key: one for press event, another for release event. The mtk-pmic-keys driver assumes that each key only has one IRQ. The key index and the RES_IRQ resource index have a 1/1 mapping. This won't work for MT6358, as we have multiple resources (2) for one key. To prepare mtk-pmic-keys to support MT6358, retrieve IRQs by name instead of by index. Signed-off-by: Mattijs Korpershoek Link: https://lore.kernel.org/r/20220121140323.4080640-2-mkorpershoek@baylibre.com Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/mtk-pmic-keys.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'drivers/input/keyboard') diff --git a/drivers/input/keyboard/mtk-pmic-keys.c b/drivers/input/keyboard/mtk-pmic-keys.c index 62391d6c7da6..d1abf95d5701 100644 --- a/drivers/input/keyboard/mtk-pmic-keys.c +++ b/drivers/input/keyboard/mtk-pmic-keys.c @@ -241,6 +241,7 @@ static int mtk_pmic_keys_probe(struct platform_device *pdev) unsigned int keycount; struct mt6397_chip *pmic_chip = dev_get_drvdata(pdev->dev.parent); struct device_node *node = pdev->dev.of_node, *child; + static const char *const irqnames[] = { "powerkey", "homekey" }; struct mtk_pmic_keys *keys; const struct mtk_pmic_regs *mtk_pmic_regs; struct input_dev *input_dev; @@ -268,7 +269,8 @@ static int mtk_pmic_keys_probe(struct platform_device *pdev) input_dev->id.version = 0x0001; keycount = of_get_available_child_count(node); - if (keycount > MTK_PMIC_MAX_KEY_COUNT) { + if (keycount > MTK_PMIC_MAX_KEY_COUNT || + keycount > ARRAY_SIZE(irqnames)) { dev_err(keys->dev, "too many keys defined (%d)\n", keycount); return -EINVAL; } @@ -276,7 +278,8 @@ static int mtk_pmic_keys_probe(struct platform_device *pdev) for_each_child_of_node(node, child) { keys->keys[index].regs = &mtk_pmic_regs->keys_regs[index]; - keys->keys[index].irq = platform_get_irq(pdev, index); + keys->keys[index].irq = + platform_get_irq_byname(pdev, irqnames[index]); if (keys->keys[index].irq < 0) { of_node_put(child); return keys->keys[index].irq; -- cgit v1.2.3-59-g8ed1b