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8abc5a7ce6
The call to of_get_next_child returns a node pointer with refcount incremented thus it must be explicitly decremented after the last usage. Detected by coccinelle with the following warnings: ./arch/arm/mach-bcm/board_bcm281xx.c:43:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 35, but without a corresponding object release within this function. ./arch/arm/mach-bcm/platsmp-brcmstb.c:337:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 329, but without a corresponding object release within this function. ./arch/arm/mach-bcm/platsmp-brcmstb.c:341:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 329, but without a corresponding object release within this functio ./arch/arm/mach-bcm/bcm63xx_smp.c:150:1-7: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 130, but without a corresponding object release within this function. Signed-off-by: Wen Yang <wen.yang99@zte.com.cn> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Ray Jui <rjui@broadcom.com> Cc: Scott Branden <sbranden@broadcom.com> Cc: bcm-kernel-feedback-list@broadcom.com Cc: Russell King <linux@armlinux.org.uk> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Cc: Brian Norris <computersforpeace@gmail.com> Cc: Gregory Fong <gregory.0xf0@gmail.com> Acked-by: Ray Jui <ray.jui@broadcom.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
74 lines
1.9 KiB
C
74 lines
1.9 KiB
C
/*
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* Copyright (C) 2012-2014 Broadcom Corporation
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation version 2.
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*
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any
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* kind, whether express or implied; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/clocksource.h>
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#include <linux/of_address.h>
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#include <asm/mach/arch.h>
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#include "kona_l2_cache.h"
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#define SECWDOG_OFFSET 0x00000000
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#define SECWDOG_RESERVED_MASK 0xe2000000
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#define SECWDOG_WD_LOAD_FLAG_MASK 0x10000000
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#define SECWDOG_EN_MASK 0x08000000
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#define SECWDOG_SRSTEN_MASK 0x04000000
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#define SECWDOG_CLKS_SHIFT 20
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#define SECWDOG_COUNT_SHIFT 0
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static void bcm281xx_restart(enum reboot_mode mode, const char *cmd)
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{
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uint32_t val;
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void __iomem *base;
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struct device_node *np_wdog;
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np_wdog = of_find_compatible_node(NULL, NULL, "brcm,kona-wdt");
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if (!np_wdog) {
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pr_emerg("Couldn't find brcm,kona-wdt\n");
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return;
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}
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base = of_iomap(np_wdog, 0);
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of_node_put(np_wdog);
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if (!base) {
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pr_emerg("Couldn't map brcm,kona-wdt\n");
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return;
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}
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/* Enable watchdog with short timeout (244us). */
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val = readl(base + SECWDOG_OFFSET);
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val &= SECWDOG_RESERVED_MASK | SECWDOG_WD_LOAD_FLAG_MASK;
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val |= SECWDOG_EN_MASK | SECWDOG_SRSTEN_MASK |
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(0x15 << SECWDOG_CLKS_SHIFT) |
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(0x8 << SECWDOG_COUNT_SHIFT);
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writel(val, base + SECWDOG_OFFSET);
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/* Wait for reset */
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while (1);
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}
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static void __init bcm281xx_init(void)
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{
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kona_l2_cache_init();
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}
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static const char * const bcm281xx_dt_compat[] = {
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"brcm,bcm11351", /* Have to use the first number upstreamed */
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NULL,
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};
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DT_MACHINE_START(BCM281XX_DT, "BCM281xx Broadcom Application Processor")
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.init_machine = bcm281xx_init,
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.restart = bcm281xx_restart,
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.dt_compat = bcm281xx_dt_compat,
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MACHINE_END
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