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Tue, 21 Jan 2020 10:03:31 +0000 From: To: , , , Subject: [PATCH 05/15] power: reset: at91-reset: convert reset in pointer to struct at91_reset Thread-Topic: [PATCH 05/15] power: reset: at91-reset: convert reset in pointer to struct at91_reset Thread-Index: AQHV0EIJnY4G7esm70ub3Ro4FxXzlA== Date: Tue, 21 Jan 2020 10:03:31 +0000 Message-ID: <1579601001-5711-6-git-send-email-claudiu.beznea@microchip.com> References: <1579601001-5711-1-git-send-email-claudiu.beznea@microchip.com> In-Reply-To: <1579601001-5711-1-git-send-email-claudiu.beznea@microchip.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [94.177.32.156] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 6ad519e4-6372-4489-81ec-08d79e592b9f x-ms-traffictypediagnostic: DM6PR11MB3195: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:1824; x-forefront-prvs: 0289B6431E x-forefront-antispam-report: SFV:NSPM; SFS:(10009020)(376002)(366004)(396003)(136003)(346002)(39860400002)(199004)(189003)(107886003)(26005)(186003)(36756003)(5660300002)(110136005)(54906003)(4326008)(66556008)(66476007)(6506007)(2906002)(76116006)(91956017)(6486002)(86362001)(64756008)(6512007)(66946007)(66446008)(8676002)(81156014)(2616005)(81166006)(8936002)(6636002)(71200400001)(316002)(478600001); 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Signed-off-by: Claudiu Beznea --- drivers/power/reset/at91-reset.c | 50 ++++++++++++++++++++++------------------ 1 file changed, 27 insertions(+), 23 deletions(-) diff --git a/drivers/power/reset/at91-reset.c b/drivers/power/reset/at91-reset.c index e8840193620d..4bb5eef4b258 100644 --- a/drivers/power/reset/at91-reset.c +++ b/drivers/power/reset/at91-reset.c @@ -56,7 +56,7 @@ struct at91_reset { struct notifier_block nb; }; -static struct at91_reset reset; +static struct at91_reset *reset; /* * unless the SDRAM is cleanly shutdown before we hit the @@ -81,8 +81,8 @@ static int at91sam9260_restart(struct notifier_block *this, unsigned long mode, "b .\n\t" : - : "r" (reset.ramc_base[0]), - "r" (reset.rstc_base), + : "r" (reset->ramc_base[0]), + "r" (reset->rstc_base), "r" (1), "r" cpu_to_le32(AT91_SDRAMC_LPCB_POWER_DOWN), "r" cpu_to_le32(AT91_RSTC_KEY | AT91_RSTC_PERRST | AT91_RSTC_PROCRST)); @@ -123,9 +123,9 @@ static int at91sam9g45_restart(struct notifier_block *this, unsigned long mode, " b .\n\t" : - : "r" (reset.ramc_base[0]), - "r" (reset.ramc_base[1]), - "r" (reset.rstc_base), + : "r" (reset->ramc_base[0]), + "r" (reset->ramc_base[1]), + "r" (reset->rstc_base), "r" (1), "r" cpu_to_le32(AT91_DDRSDRC_LPCB_POWER_DOWN), "r" cpu_to_le32(AT91_RSTC_KEY | AT91_RSTC_PERRST | AT91_RSTC_PROCRST) @@ -138,7 +138,7 @@ static int sama5d3_restart(struct notifier_block *this, unsigned long mode, void *cmd) { writel(cpu_to_le32(AT91_RSTC_KEY | AT91_RSTC_PERRST | AT91_RSTC_PROCRST), - reset.rstc_base); + reset->rstc_base); return NOTIFY_DONE; } @@ -147,7 +147,7 @@ static int samx7_restart(struct notifier_block *this, unsigned long mode, void *cmd) { writel(cpu_to_le32(AT91_RSTC_KEY | AT91_RSTC_PROCRST), - reset.rstc_base); + reset->rstc_base); return NOTIFY_DONE; } @@ -155,7 +155,7 @@ static int samx7_restart(struct notifier_block *this, unsigned long mode, static void __init at91_reset_status(struct platform_device *pdev) { const char *reason; - u32 reg = readl(reset.rstc_base + AT91_RSTC_SR); + u32 reg = readl(reset->rstc_base + AT91_RSTC_SR); switch ((reg & AT91_RSTC_RSTTYP) >> 8) { case RESET_TYPE_GENERAL: @@ -212,8 +212,12 @@ static int __init at91_reset_probe(struct platform_device *pdev) struct device_node *np; int ret, idx = 0; - reset.rstc_base = of_iomap(pdev->dev.of_node, 0); - if (!reset.rstc_base) { + reset = devm_kzalloc(&pdev->dev, sizeof(*reset), GFP_KERNEL); + if (!reset) + return -ENOMEM; + + reset->rstc_base = of_iomap(pdev->dev.of_node, 0); + if (!reset->rstc_base) { dev_err(&pdev->dev, "Could not map reset controller address\n"); return -ENODEV; } @@ -221,8 +225,8 @@ static int __init at91_reset_probe(struct platform_device *pdev) if (!of_device_is_compatible(pdev->dev.of_node, "atmel,sama5d3-rstc")) { /* we need to shutdown the ddr controller, so get ramc base */ for_each_matching_node(np, at91_ramc_of_match) { - reset.ramc_base[idx] = of_iomap(np, 0); - if (!reset.ramc_base[idx]) { + reset->ramc_base[idx] = of_iomap(np, 0); + if (!reset->ramc_base[idx]) { dev_err(&pdev->dev, "Could not map ram controller address\n"); of_node_put(np); return -ENODEV; @@ -232,22 +236,22 @@ static int __init at91_reset_probe(struct platform_device *pdev) } match = of_match_node(at91_reset_of_match, pdev->dev.of_node); - reset.nb.notifier_call = match->data; - reset.nb.priority = 192; + reset->nb.notifier_call = match->data; + reset->nb.priority = 192; - reset.sclk = devm_clk_get(&pdev->dev, NULL); - if (IS_ERR(reset.sclk)) - return PTR_ERR(reset.sclk); + reset->sclk = devm_clk_get(&pdev->dev, NULL); + if (IS_ERR(reset->sclk)) + return PTR_ERR(reset->sclk); - ret = clk_prepare_enable(reset.sclk); + ret = clk_prepare_enable(reset->sclk); if (ret) { dev_err(&pdev->dev, "Could not enable slow clock\n"); return ret; } - ret = register_restart_handler(&reset.nb); + ret = register_restart_handler(&reset->nb); if (ret) { - clk_disable_unprepare(reset.sclk); + clk_disable_unprepare(reset->sclk); return ret; } @@ -258,8 +262,8 @@ static int __init at91_reset_probe(struct platform_device *pdev) static int __exit at91_reset_remove(struct platform_device *pdev) { - unregister_restart_handler(&reset.nb); - clk_disable_unprepare(reset.sclk); + unregister_restart_handler(&reset->nb); + clk_disable_unprepare(reset->sclk); return 0; }