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Mon, 16 Oct 2023 03:15:12 -0700 From: Kartik To: , , , , , , , , , , , , , , , , , , Subject: [PATCH v6 5/8] soc/tegra: fuse: Add function to add lookups Date: Mon, 16 Oct 2023 15:44:33 +0530 Message-ID: <20231016101436.7146-6-kkartik@nvidia.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231016101436.7146-1-kkartik@nvidia.com> References: <20231016101436.7146-1-kkartik@nvidia.com> MIME-Version: 1.0 X-NVConfidentiality: public X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS3PEPF000099D5:EE_|BL1PR12MB5078:EE_ X-MS-Office365-Filtering-Correlation-Id: b62457a4-14b7-4380-8e55-08dbce30d411 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.160;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge1.nvidia.com;CAT:NONE;SFS:(13230031)(4636009)(39860400002)(346002)(376002)(136003)(396003)(230922051799003)(1800799009)(186009)(64100799003)(82310400011)(451199024)(36840700001)(46966006)(40470700004)(47076005)(478600001)(6666004)(70206006)(70586007)(316002)(110136005)(1076003)(26005)(2616005)(336012)(426003)(8676002)(8936002)(7416002)(2906002)(5660300002)(41300700001)(36756003)(7636003)(86362001)(921005)(356005)(36860700001)(83380400001)(82740400003)(40460700003)(40480700001)(334744004)(83996005)(2101003);DIR:OUT;SFP:1101; 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So, this can be shared between tegra_fuse_init() and ACPI probe, which is to be introduced later. Use kmemdup_array to duplicate fuse->soc->lookups. Signed-off-by: Kartik --- v3 -> v4: * Use kmemdup_array to duplicate fuse->soc->lookups. * Return err at the end of tegra_fuse_probe to remove redundant code. v1 -> v2: * Use size_mul to calculate lookups array size. --- drivers/soc/tegra/fuse/fuse-tegra.c | 25 +++++++++++++++++-------- 1 file changed, 17 insertions(+), 8 deletions(-) diff --git a/drivers/soc/tegra/fuse/fuse-tegra.c b/drivers/soc/tegra/fuse/fuse-tegra.c index 98805885158e..4ebb5597a77b 100644 --- a/drivers/soc/tegra/fuse/fuse-tegra.c +++ b/drivers/soc/tegra/fuse/fuse-tegra.c @@ -113,6 +113,18 @@ static void tegra_fuse_restore(void *base) fuse->clk = NULL; } +static int tegra_fuse_add_lookups(struct tegra_fuse *fuse) +{ + fuse->lookups = kmemdup_array(fuse->soc->lookups, sizeof(*fuse->lookups), + fuse->soc->num_lookups, GFP_KERNEL); + if (!fuse->lookups) + return -ENOMEM; + + nvmem_add_cell_lookups(fuse->lookups, fuse->soc->num_lookups); + + return 0; +} + static int tegra_fuse_probe(struct platform_device *pdev) { void __iomem *base = fuse->base; @@ -398,6 +410,7 @@ static int __init tegra_init_fuse(void) const struct of_device_id *match; struct device_node *np; struct resource regs; + int err; tegra_init_apbmisc(); @@ -495,15 +508,11 @@ static int __init tegra_init_fuse(void) pr_debug("Tegra CPU Speedo ID %d, SoC Speedo ID %d\n", tegra_sku_info.cpu_speedo_id, tegra_sku_info.soc_speedo_id); - if (fuse->soc->lookups) { - size_t size = sizeof(*fuse->lookups) * fuse->soc->num_lookups; + err = tegra_fuse_add_lookups(fuse); + if (err) + pr_err("failed to add FUSE lookups\n"); - fuse->lookups = kmemdup(fuse->soc->lookups, size, GFP_KERNEL); - if (fuse->lookups) - nvmem_add_cell_lookups(fuse->lookups, fuse->soc->num_lookups); - } - - return 0; + return err; } early_initcall(tegra_init_fuse);