Message ID | 20190214145231.8750-20-brgl@bgdev.pl (mailing list archive) |
---|---|
State | New, archived |
Headers | show
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Thu, 14 Feb 2019 06:53:05 -0800 (PST) From: Bartosz Golaszewski <brgl@bgdev.pl> To: Dmitry Torokhov <dmitry.torokhov@gmail.com>, Sekhar Nori <nsekhar@ti.com>, Kevin Hilman <khilman@kernel.org>, Thomas Gleixner <tglx@linutronix.de>, Jason Cooper <jason@lakedaemon.net>, Marc Zyngier <marc.zyngier@arm.com>, David Lechner <david@lechnology.com> Subject: [PATCH v4 19/37] ARM: davinci: aintc: request memory region before remapping it Date: Thu, 14 Feb 2019 15:52:13 +0100 Message-Id: <20190214145231.8750-20-brgl@bgdev.pl> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190214145231.8750-1-brgl@bgdev.pl> References: <20190214145231.8750-1-brgl@bgdev.pl> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190214_065308_373772_13E0CBDD X-CRM114-Status: GOOD ( 11.43 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: <linux-arm-kernel.lists.infradead.org> List-Unsubscribe: <http://lists.infradead.org/mailman/options/linux-arm-kernel>, <mailto:linux-arm-kernel-request@lists.infradead.org?subject=unsubscribe> List-Archive: <http://lists.infradead.org/pipermail/linux-arm-kernel/> List-Post: <mailto:linux-arm-kernel@lists.infradead.org> List-Help: <mailto:linux-arm-kernel-request@lists.infradead.org?subject=help> List-Subscribe: <http://lists.infradead.org/mailman/listinfo/linux-arm-kernel>, <mailto:linux-arm-kernel-request@lists.infradead.org?subject=subscribe> Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com>, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" <linux-arm-kernel-bounces@lists.infradead.org> Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP |
Series |
ARM: davinci: modernize the irq support
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On 2/14/19 8:52 AM, Bartosz Golaszewski wrote: > From: Bartosz Golaszewski <bgolaszewski@baylibre.com> > > Add a missing call to request_mem_region() before calling ioremap() to > make sure the region is not being used by anyone else. > > Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> > --- Reviewed-by: <david@lechnology.com>
diff --git a/arch/arm/mach-davinci/irq.c b/arch/arm/mach-davinci/irq.c index 2afaf19dc46c..2b6943731af9 100644 --- a/arch/arm/mach-davinci/irq.c +++ b/arch/arm/mach-davinci/irq.c @@ -86,9 +86,18 @@ davinci_aintc_handle_irq(struct pt_regs *regs) void __init davinci_aintc_init(const struct davinci_aintc_config *config) { unsigned int irq_off, reg_off, prio, shift; + void __iomem *req; int ret, irq_base; const u8 *prios; + req = request_mem_region(config->reg.start, + resource_size(&config->reg), + "davinci-cp-intc"); + if (!req) { + pr_err("%s: register range busy\n", __func__); + return; + } + davinci_aintc_base = ioremap(config->reg.start, resource_size(&config->reg)); if (!davinci_aintc_base) {