From eb879413be488d441ea2e48084dc77852045b2df Mon Sep 17 00:00:00 2001 From: Aymeric Aillet Date: Mon, 17 Jul 2023 15:43:05 +0200 Subject: [PATCH] drivers: gpio: rcar: Add R-Car Gen4 support Renesas Gen4 SoCs GPIO IPs are using one more register comparing to Gen3 SoCs. The new "INEN" register is used to enable general input. Signed-off-by: Aymeric Aillet --- drivers/gpio/gpio_rcar.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/gpio/gpio_rcar.c b/drivers/gpio/gpio_rcar.c index 820db5fc76c..f60112427bc 100644 --- a/drivers/gpio/gpio_rcar.c +++ b/drivers/gpio/gpio_rcar.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2020 IoT.bzh + * Copyright (c) 2020-2023 IoT.bzh * * SPDX-License-Identifier: Apache-2.0 */ @@ -52,6 +52,7 @@ struct gpio_rcar_data { #define FILONOFF 0x28 /* Chattering Prevention On/Off Register */ #define OUTDTSEL 0x40 /* Output Data Select Register */ #define BOTHEDGE 0x4c /* One Edge/Both Edge Select Register */ +#define INEN 0x50 /* General Input Enable Register */ static inline uint32_t gpio_rcar_read(const struct device *dev, uint32_t offs) { @@ -106,6 +107,11 @@ static void gpio_rcar_config_general_input_output_mode( /* Configure positive logic in POSNEG */ gpio_rcar_modify_bit(dev, POSNEG, gpio, false); + /* Select "Input Enable/Disable" in INEN for Gen4 SoCs */ +#ifdef CONFIG_SOC_SERIES_RCAR_GEN4 + gpio_rcar_modify_bit(dev, INEN, gpio, !output); +#endif + /* Select "General Input/Output Mode" in IOINTSEL */ gpio_rcar_modify_bit(dev, IOINTSEL, gpio, false); @@ -223,6 +229,11 @@ static int gpio_rcar_pin_interrupt_configure(const struct device *dev, gpio_rcar_modify_bit(dev, BOTHEDGE, pin, true); } + /* Select "Input Enable" in INEN for Gen4 SoCs */ +#ifdef CONFIG_SOC_SERIES_RCAR_GEN4 + gpio_rcar_modify_bit(dev, INEN, pin, true); +#endif + gpio_rcar_modify_bit(dev, IOINTSEL, pin, true); if (mode == GPIO_INT_MODE_EDGE) {