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Wysocki" , linux-acpi@vger.kernel.org, driver-core@lists.linux.dev, linux-kernel@vger.kernel.org Subject: Re: [PATCH] software node: allow referencing software nodes by name Message-ID: References: <2026032406-recycler-device-7660@gregkh> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <2026032406-recycler-device-7660@gregkh> On Tue, Mar 24, 2026 at 08:59:24AM +0100, Greg Kroah-Hartman wrote: > > Do you have a follow-on patch that uses this new api anywhere? > It will look like this (obviously split in 2 patches): diff --git a/arch/x86/platform/geode/geode-common.c b/arch/x86/platform/geode/geode-common.c index 05189c5f7d2a..ae43ca2ba4ec 100644 --- a/arch/x86/platform/geode/geode-common.c +++ b/arch/x86/platform/geode/geode-common.c @@ -14,10 +14,6 @@ #include "geode-common.h" -static const struct software_node geode_gpiochip_node = { - .name = "cs5535-gpio", -}; - static const struct property_entry geode_gpio_keys_props[] = { PROPERTY_ENTRY_U32("poll-interval", 20), { } @@ -42,7 +38,6 @@ static const struct software_node geode_restart_key_node = { }; static const struct software_node *geode_gpio_keys_swnodes[] __initconst = { - &geode_gpiochip_node, &geode_gpio_keys_node, &geode_restart_key_node, NULL @@ -50,10 +45,6 @@ static const struct software_node *geode_gpio_keys_swnodes[] __initconst = { /* * Creates gpio-keys-polled device for the restart key. - * - * Note that it needs to be called first, before geode_create_leds(), - * because it registers gpiochip software node used by both gpio-keys and - * leds-gpio devices. */ int __init geode_create_restart_key(unsigned int pin) { @@ -64,8 +55,7 @@ int __init geode_create_restart_key(unsigned int pin) struct platform_device *pd; int err; - geode_restart_key_props[0] = PROPERTY_ENTRY_GPIO("gpios", - &geode_gpiochip_node, + geode_restart_key_props[0] = PROPERTY_ENTRY_GPIO("gpios", "cs5535-gpio", pin, GPIO_ACTIVE_LOW); err = software_node_register_node_group(geode_gpio_keys_swnodes); @@ -136,7 +126,7 @@ int __init geode_create_leds(const char *label, const struct geode_led *leds, } props[i * 3 + 0] = - PROPERTY_ENTRY_GPIO("gpios", &geode_gpiochip_node, + PROPERTY_ENTRY_GPIO("gpios", "cs5535-gpio", leds[i].pin, GPIO_ACTIVE_LOW); props[i * 3 + 1] = PROPERTY_ENTRY_STRING("linux,default-trigger", diff --git a/drivers/mfd/cs5535-mfd.c b/drivers/mfd/cs5535-mfd.c index d0fb2e52ee76..6941e124e87f 100644 --- a/drivers/mfd/cs5535-mfd.c +++ b/drivers/mfd/cs5535-mfd.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #define DRV_NAME "cs5535-mfd" @@ -29,6 +30,10 @@ enum cs5535_mfd_bars { static struct resource cs5535_mfd_resources[NR_BARS]; +static const struct software_node cs5535_gpiochip_node = { + .name = "cs5535-gpio", +}; + static struct mfd_cell cs5535_mfd_cells[] = { { .name = "cs5535-smb", @@ -39,6 +44,7 @@ static struct mfd_cell cs5535_mfd_cells[] = { .name = "cs5535-gpio", .num_resources = 1, .resources = &cs5535_mfd_resources[GPIO_BAR], + .swnode = &cs5535_gpiochip_node, }, { .name = "cs5535-mfgpt", Thanks. -- Dmitry