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Thu, 05 Mar 2026 16:44:59 -0800 (PST) From: Kevin Hilman To: Bartosz Golaszewski , Linus Walleij , Bartosz Golaszewski , Geert Uytterhoeven , Frank Rowand , Mika Westerberg , Andy Shevchenko , Aaro Koskinen , Janusz Krzysztofik , Tony Lindgren , Russell King , Jonathan Corbet , Shuah Khan Cc: linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org, linux-doc@vger.kernel.org, brgl@kernel.org, Bartosz Golaszewski Subject: Re: [PATCH 4/6] ARM: omap1: ams-delta: convert GPIO hogs to using firmware nodes In-Reply-To: <20260305-gpio-hog-fwnode-v1-4-97d7df6bbd17@oss.qualcomm.com> References: <20260305-gpio-hog-fwnode-v1-0-97d7df6bbd17@oss.qualcomm.com> <20260305-gpio-hog-fwnode-v1-4-97d7df6bbd17@oss.qualcomm.com> Date: Thu, 05 Mar 2026 16:44:59 -0800 Message-ID: <7hy0k5okfo.fsf@baylibre.com> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain Bartosz Golaszewski writes: > Setup a software node hierarchy for the latch2 GPIO controller defining > the required hog and stop using legacy machine hog API. > > Signed-off-by: Bartosz Golaszewski Acked-by: Kevin Hilman > --- > arch/arm/mach-omap1/board-ams-delta.c | 32 +++++++++++++++++++++++++++----- > 1 file changed, 27 insertions(+), 5 deletions(-) > > diff --git a/arch/arm/mach-omap1/board-ams-delta.c b/arch/arm/mach-omap1/board-ams-delta.c > index 16392720296cd224732450c85419c35bbab506f6..1bec4fa0bd5e8bfc58103d1f24b22176707fd26f 100644 > --- a/arch/arm/mach-omap1/board-ams-delta.c > +++ b/arch/arm/mach-omap1/board-ams-delta.c > @@ -556,10 +556,30 @@ static struct gpiod_lookup_table *ams_delta_gpio_tables[] __initdata = { > &ams_delta_nand_gpio_table, > }; > > -static struct gpiod_hog ams_delta_gpio_hogs[] = { > - GPIO_HOG(LATCH2_LABEL, LATCH2_PIN_KEYBRD_DATAOUT, "keybrd_dataout", > - GPIO_ACTIVE_HIGH, GPIOD_OUT_LOW), > - {}, > +static const struct software_node latch2_gpio_swnode = { > + .name = LATCH2_LABEL, > +}; > + > +static const u32 latch2_hog_gpios[] = { LATCH2_PIN_KEYBRD_DATAOUT, 0 }; > + > +static const struct property_entry latch2_gpio_hog_props[] = { > + PROPERTY_ENTRY_BOOL("gpio-hog"), > + PROPERTY_ENTRY_U32_ARRAY("gpios", latch2_hog_gpios), > + PROPERTY_ENTRY_STRING("line-name", "keybrd_dataout"), > + PROPERTY_ENTRY_BOOL("output-low"), > + { } > +}; > + > +static const struct software_node latch2_gpio_hog_swnode = { > + .parent = &latch2_gpio_swnode, > + .name = "latch2-hog", > + .properties = latch2_gpio_hog_props, > +}; > + > +static const struct software_node *const latch2_gpio_swnodes[] = { > + &latch2_gpio_swnode, > + &latch2_gpio_hog_swnode, > + NULL > }; > > static struct plat_serial8250_port ams_delta_modem_ports[]; > @@ -684,7 +704,6 @@ static void __init ams_delta_init(void) > > omap_gpio_deps_init(); > ams_delta_latch2_init(); > - gpiod_add_hogs(ams_delta_gpio_hogs); > > omap_serial_init(); > omap_register_i2c_bus(1, 100, NULL, 0); > @@ -693,6 +712,9 @@ static void __init ams_delta_init(void) > platform_add_devices(ams_delta_devices, ARRAY_SIZE(ams_delta_devices)); > > platform_device_register_full(&latch1_gpio_devinfo); > + > + software_node_register_node_group(latch2_gpio_swnodes); > + latch2_gpio_devinfo.fwnode = software_node_fwnode(&latch2_gpio_swnode); > platform_device_register_full(&latch2_gpio_devinfo); > > /* > > -- > 2.47.3