From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7ED748F74 for ; Sun, 16 Jul 2023 20:06:12 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id F221DC433C9; Sun, 16 Jul 2023 20:06:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1689537972; bh=d8KXM6zNOLHtK2ETmfcjl5NQUFFmS8LgIItknJ0VzVE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hs+UaC0G4GiIJNVnfxvuwbd3qugdQ4lIxkTjUp7Na6s74vsydK5KHk+70Qf2KwQoD bKLogD8v6UqdelGTvCHNEREw8ILbM7kx1IbxI31sCfcoEwbV7N/jwsr34c90SzCFN8 rZAhjB6sgVEDGTuEge0Tiew/C9a95lZJbSGFUj5Q= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Linus Walleij , Sasha Levin Subject: [PATCH 6.4 287/800] ARM: omap1: Remove reliance on GPIO numbers from PalmTE Date: Sun, 16 Jul 2023 21:42:20 +0200 Message-ID: <20230716194955.753147912@linuxfoundation.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230716194949.099592437@linuxfoundation.org> References: <20230716194949.099592437@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Linus Walleij [ Upstream commit 4c40db6249ff1da335b276bdd6c3c3462efbc2ab ] It appears this happens because the OMAP driver now allocates GPIO numbers dynamically, so all that is references by number is a bit up in the air. Utilize the NULL device to define some board-specific GPIO lookups and use these to immediately look up the same GPIOs, convert to IRQ numbers and pass as resources to the devices. This is ugly but should work. Fixes: 92bf78b33b0b ("gpio: omap: use dynamic allocation of base") Signed-off-by: Linus Walleij Signed-off-by: Sasha Levin --- arch/arm/mach-omap1/board-palmte.c | 51 ++++++++++++++++++------------ 1 file changed, 31 insertions(+), 20 deletions(-) diff --git a/arch/arm/mach-omap1/board-palmte.c b/arch/arm/mach-omap1/board-palmte.c index f79c497f04d57..49b7757cb2fd3 100644 --- a/arch/arm/mach-omap1/board-palmte.c +++ b/arch/arm/mach-omap1/board-palmte.c @@ -13,7 +13,8 @@ * * Copyright (c) 2006 Andrzej Zaborowski */ -#include +#include +#include #include #include #include @@ -187,23 +188,6 @@ static struct spi_board_info palmte_spi_info[] __initdata = { }, }; -static void __init palmte_misc_gpio_setup(void) -{ - /* Set TSC2102 PINTDAV pin as input (used by TSC2102 driver) */ - if (gpio_request(PALMTE_PINTDAV_GPIO, "TSC2102 PINTDAV") < 0) { - printk(KERN_ERR "Could not reserve PINTDAV GPIO!\n"); - return; - } - gpio_direction_input(PALMTE_PINTDAV_GPIO); - - /* Set USB-or-DC-IN pin as input (unused) */ - if (gpio_request(PALMTE_USB_OR_DC_GPIO, "USB/DC-IN") < 0) { - printk(KERN_ERR "Could not reserve cable signal GPIO!\n"); - return; - } - gpio_direction_input(PALMTE_USB_OR_DC_GPIO); -} - #if IS_ENABLED(CONFIG_MMC_OMAP) static struct omap_mmc_platform_data _palmte_mmc_config = { @@ -231,8 +215,23 @@ static void palmte_mmc_init(void) #endif /* CONFIG_MMC_OMAP */ +static struct gpiod_lookup_table palmte_irq_gpio_table = { + .dev_id = NULL, + .table = { + /* GPIO used for TSC2102 PINTDAV IRQ */ + GPIO_LOOKUP("gpio-0-15", PALMTE_PINTDAV_GPIO, "tsc2102_irq", + GPIO_ACTIVE_HIGH), + /* GPIO used for USB or DC input detection */ + GPIO_LOOKUP("gpio-0-15", PALMTE_USB_OR_DC_GPIO, "usb_dc_irq", + GPIO_ACTIVE_HIGH), + { } + }, +}; + static void __init omap_palmte_init(void) { + struct gpio_desc *d; + /* mux pins for uarts */ omap_cfg_reg(UART1_TX); omap_cfg_reg(UART1_RTS); @@ -243,9 +242,21 @@ static void __init omap_palmte_init(void) platform_add_devices(palmte_devices, ARRAY_SIZE(palmte_devices)); - palmte_spi_info[0].irq = gpio_to_irq(PALMTE_PINTDAV_GPIO); + gpiod_add_lookup_table(&palmte_irq_gpio_table); + d = gpiod_get(NULL, "tsc2102_irq", GPIOD_IN); + if (IS_ERR(d)) + pr_err("Unable to get TSC2102 IRQ GPIO descriptor\n"); + else + palmte_spi_info[0].irq = gpiod_to_irq(d); spi_register_board_info(palmte_spi_info, ARRAY_SIZE(palmte_spi_info)); - palmte_misc_gpio_setup(); + + /* We are getting this just to set it up as input */ + d = gpiod_get(NULL, "usb_dc_irq", GPIOD_IN); + if (IS_ERR(d)) + pr_err("Unable to get USB/DC IRQ GPIO descriptor\n"); + else + gpiod_put(d); + omap_serial_init(); omap1_usb_init(&palmte_usb_config); omap_register_i2c_bus(1, 100, NULL, 0); -- 2.39.2