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DIR:OUT; SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Sep 2021 07:32:48.6083 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: a6a69b2f-abc4-42af-fc31-08d971d1b160 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a; Ip=[216.228.112.32]; Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BN8NAM11FT035.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN8PR12MB2866 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org From: pshete T19x GPIO controller's support multiple interrupts. The GPIO controller is capable to route 8 interrupts per controller in case of NON-AON GPIO's and 4 interrupts per controller in AON GPIO. This is new feature starting Tegra194 The interrupt route map determines which interrupt line is to be used. Signed-off-by: Prathamesh Shete --- drivers/gpio/gpio-tegra186.c | 27 ++++++++++++++++++++++----- 1 file changed, 22 insertions(+), 5 deletions(-) diff --git a/drivers/gpio/gpio-tegra186.c b/drivers/gpio/gpio-tegra186.c index d38980b9923a..c1172da9aebf 100644 --- a/drivers/gpio/gpio-tegra186.c +++ b/drivers/gpio/gpio-tegra186.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0-only /* - * Copyright (c) 2016-2017 NVIDIA Corporation + * Copyright (c) 2016-2021 NVIDIA Corporation * * Author: Thierry Reding */ @@ -68,6 +68,7 @@ struct tegra_gpio_soc { unsigned int num_ports; const char *name; unsigned int instance; + bool multi_ints; const struct tegra186_pin_range *pin_ranges; unsigned int num_pin_ranges; @@ -450,7 +451,8 @@ static void tegra186_gpio_irq(struct irq_desc *desc) struct irq_domain *domain = gpio->gpio.irq.domain; struct irq_chip *chip = irq_desc_get_chip(desc); unsigned int parent = irq_desc_get_irq(desc); - unsigned int i, offset = 0; + unsigned int i, j, offset = 0; + int intr_cntr; chained_irq_enter(chip, desc); @@ -462,9 +464,20 @@ static void tegra186_gpio_irq(struct irq_desc *desc) base = gpio->base + port->bank * 0x1000 + port->port * 0x200; - /* skip ports that are not associated with this bank */ - if (parent != gpio->irq[port->bank]) - goto skip; + if (!gpio->soc->multi_ints) { + /* skip ports that are not associated with this bank */ + if (parent != gpio->irq[port->bank]) + goto skip; + + } else { + intr_cntr = 0; + for (j = 0; j < 8; j++) { + if (parent != gpio->irq[(port->bank * 8) + j]) + intr_cntr++; + } + if (!(intr_cntr & 0xF)) + goto skip; + } value = readl(base + TEGRA186_GPIO_INTERRUPT_STATUS(1)); @@ -772,6 +785,7 @@ static const struct tegra_gpio_soc tegra186_main_soc = { .ports = tegra186_main_ports, .name = "tegra186-gpio", .instance = 0, + .multi_ints = false, }; #define TEGRA186_AON_GPIO_PORT(_name, _bank, _port, _pins) \ @@ -798,6 +812,7 @@ static const struct tegra_gpio_soc tegra186_aon_soc = { .ports = tegra186_aon_ports, .name = "tegra186-gpio-aon", .instance = 1, + .multi_ints = false, }; #define TEGRA194_MAIN_GPIO_PORT(_name, _bank, _port, _pins) \ @@ -852,6 +867,7 @@ static const struct tegra_gpio_soc tegra194_main_soc = { .num_pin_ranges = ARRAY_SIZE(tegra194_main_pin_ranges), .pin_ranges = tegra194_main_pin_ranges, .pinmux = "nvidia,tegra194-pinmux", + .multi_ints = true, }; #define TEGRA194_AON_GPIO_PORT(_name, _bank, _port, _pins) \ @@ -875,6 +891,7 @@ static const struct tegra_gpio_soc tegra194_aon_soc = { .ports = tegra194_aon_ports, .name = "tegra194-gpio-aon", .instance = 1, + .multi_ints = true, }; static const struct of_device_id tegra186_gpio_of_match[] = { From patchwork Tue Sep 7 07:30:38 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Prathamesh Shete X-Patchwork-Id: 507706 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, UPPERCASE_50_75,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 783F5C433EF for ; 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CAT:NONE; SFS:(4636009)(36840700001)(46966006)(54906003)(110136005)(107886003)(70586007)(4326008)(36860700001)(2616005)(70206006)(36756003)(1076003)(336012)(2906002)(82310400003)(316002)(186003)(5660300002)(7696005)(26005)(426003)(8936002)(8676002)(6666004)(47076005)(7636003)(508600001)(356005)(83380400001)(86362001); DIR:OUT; SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Sep 2021 07:31:07.2582 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: f1cdb329-8b3c-46e4-2614-08d971d174fc X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a; Ip=[216.228.112.32]; Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BN8NAM11FT045.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR12MB1632 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org From: pshete T19x supports 8 entries for GPIO controller. This change adds the required interrupt entires for all GPIO controllers. Signed-off-by: Prathamesh Shete --- arch/arm64/boot/dts/nvidia/tegra194.dtsi | 49 +++++++++++++++++++++++- 1 file changed, 47 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi b/arch/arm64/boot/dts/nvidia/tegra194.dtsi index b7d532841390..c681a79c44ec 100644 --- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi +++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi @@ -34,11 +34,53 @@ reg = <0x2200000 0x10000>, <0x2210000 0x10000>; interrupts = , + , + , + , + , + , + , + , , + , + , + , + , + , + , + , , + , + , + , + , + , + , + , , + , + , + , + , + , + , + , , - ; + , + , + , + , + , + , + , + , + , + , + , + , + , + , + ; #interrupt-cells = <2>; interrupt-controller; #gpio-cells = <2>; @@ -1273,7 +1315,10 @@ reg-names = "security", "gpio"; reg = <0xc2f0000 0x1000>, <0xc2f1000 0x1000>; - interrupts = ; + interrupts = , + , + , + ; gpio-controller; #gpio-cells = <2>; interrupt-controller;