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Mon, 13 Jul 2020 14:16:54 +0000 (GMT) From: Tamseel Shams To: kgene@kernel.org, krzk@kernel.org, gregkh@linuxfoundation.org, jslaby@suse.com Subject: [PATCH v4] serial: samsung: change to platform_get_irq_optional Date: Mon, 13 Jul 2020 19:25:31 +0530 Message-Id: <20200713135531.68583-1-m.shams@samsung.com> X-Mailer: git-send-email 2.17.1 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrNIsWRmVeSWpSXmKPExsWy7bCmhu4jJt54g5c/DC0ezNvGZtG8eD2b xZQNH5gs+h+/ZrY4f34Du8Wmx9dYLS7vmsNmMeP8PiaLM4t72S3uti5md+Dy2LSqk81j/9w1 7B6bl9R79G1ZxeixfstVFo/Pm+QC2KK4bFJSczLLUov07RK4Mg7uX8ZesJ2z4va1g4wNjB/Y uxg5OSQETCT2nJkLZgsJ7GaUeL3UrYuRC8j+xCjRN38RC4TzmVFi2aF7jDAdU5sWM0MkdjFK /Dq0nhHCaWGS+DtlDZDDwcEmoClx/Dw3SIOIQIjEu7NbwGqYBU4ySuzd3MACkhAW8JC48fge K4jNIqAqcXRKP1icV8BCYtfyTawQ2+QlVm84ALZNQuAcu8S2Aw1QCReJY7vvQz0hLPHq+BYo W0ri87u9bBB2vsT8eauYIewKiZUX3kDZ9hIHrsxhATmUGejQ9bv0IcKyElNPrWMCsZkF+CR6 fz9hgojzSuyYB2MrSvzf3Q+1Slzi3YopUOd4SMxcdpMJEo6xEg8aXrBPYJSdhbBhASPjKkbJ 1ILi3PTUYtMCo7zUcr3ixNzi0rx0veT83E2M4PSg5bWD8eGDD3qHGJk4GA8xSnAwK4nwRoty xgvxpiRWVqUW5ccXleakFh9ilOZgURLnVfpxJk5IID2xJDU7NbUgtQgmy8TBKdXA1D/tgn64 TJ2V18WsXuF5G+R6LwoZXjvKEviYkXHt5u+ylz+ZFjc994oI+B33/d9et4mvI2abZunHHL1Y ectuwfVf+/WPn7oswXYoqjn5/wTF3JrAzhlL9F9z6ldc55248WbGSr3FTqt/mGnYTV07eaOU 3SGPHbOOSSuI8PL+O/JGNvhY7pkt9r32FR1lJekuM7YFnL206ZJl8Peb1ro+J5K2/wtdnCsd 9Si/JzW37DHbu5ffJJ34gzotDxi/tTXr+MD5V6gh/lDEMaU3P2y8V7nGVFnc5/8YmWK5V9NX s9SpYfPejoeefEv/Lw/h0ykzmnPof1iJ8+FU55DDsyLXWJp4bWVLto/7esrDK+6LEktxRqKh FnNRcSIAQkSkGH4DAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprILMWRmVeSWpSXmKPExsWy7bCSnO71HJ54g+Z+PYsH87axWTQvXs9m MWXDByaL/sevmS3On9/AbrHp8TVWi8u75rBZzDi/j8nizOJedou7rYvZHbg8Nq3qZPPYP3cN u8fmJfUefVtWMXqs33KVxePzJrkAtigum5TUnMyy1CJ9uwSujIP7l7EXbOesuH3tIGMD4wf2 LkZODgkBE4mpTYuZuxi5OIQEdjBKXOq6ygaREJeY9ms/I4QtLLHy33N2iKImJokfh3+zdDFy cLAJaEocP88NYooIREjM/FgDUsIscJ5RYufx1UwgvcICHhI3Ht9jBbFZBFQljk7pZwGxeQUs JHYt38QKMV9eYvWGA8wTGHkWMDKsYpRMLSjOTc8tNiwwykst1ytOzC0uzUvXS87P3cQIDjUt rR2Me1Z90DvEyMTBeIhRgoNZSYQ3WpQzXog3JbGyKrUoP76oNCe1+BCjNAeLkjjv11kL44QE 0hNLUrNTUwtSi2CyTBycUg1MPA9n9uxXvBHIf/93/DKW52+sc/tWRs3eGH5x38o1bDFsRa57 d1bdPht5w+O1K6tX710d7ZQysTn/wnJvN8tH6k9/ssmVtXAX/5RFtnPqfi2TXM99qlyCqfxq Qvm/k2+u3JM56V7BWqShwrQhxCJkrvPMpdvvur5si2o1er1HUCRJUmHqAZlp8/jzpCYG7fJ8 vPnUn2+HBDh5Z50wS7p65JwOg7/nk6XPn13UP6vs/JtFfz+rolZ07nP/q2wdUhxSXie4Hh// Vhq/0nlr6K4Ka/vSR8d3nt+QVLzgAtPXF9m9Sabxp35d380WfVDt/Uk7pjk33cuUY1+ZmJZK GL05yeDPat/AY3uY53/CqZnxSizFGYmGWsxFxYkAj29EvqQCAAA= X-CMS-MailID: 20200713141655epcas5p2cdd83477e4fc024457a2b08d8ebfbad0 X-Msg-Generator: CA X-Sendblock-Type: REQ_APPROVE CMS-TYPE: 105P X-CMS-RootMailID: 20200713141655epcas5p2cdd83477e4fc024457a2b08d8ebfbad0 References: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200713_205713_844037_70DF597B X-CRM114-Status: GOOD ( 14.75 ) X-Spam-Score: -5.2 (-----) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-5.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at https://www.dnswl.org/, high trust [203.254.224.34 listed in list.dnswl.org] -0.0 RCVD_IN_MSPIKE_H3 RBL: Good reputation (+3) [203.254.224.34 listed in wl.mailspike.net] -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.0 RCVD_IN_MSPIKE_WL Mailspike good senders -0.0 DKIMWL_WL_HIGH DKIMwl.org - Whitelisted High sender X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-samsung-soc@vger.kernel.org, linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org, alim.akhtar@samsung.com, Tamseel Shams , linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org In few older Samsung SoCs like s3c2410, s3c2412 and s3c2440, UART IP is having 2 interrupt lines. However, in other SoCs like s3c6400, s5pv210, exynos5433, and exynos4210 UART is having only 1 interrupt line. Due to this, "platform_get_irq(platdev, 1)" call in the driver gives the following false-positive error: "IRQ index 1 not found" on recent platforms. This patch replaces the platform_get_irq() call with platform_get_irq_optional() and hence avoiding the false-positive error. Signed-off-by: Tamseel Shams --- Commit message is changed. Addressed Krzysztof's previous comment. drivers/tty/serial/samsung_tty.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/tty/serial/samsung_tty.c b/drivers/tty/serial/samsung_tty.c index 6ef614d8648c..c44582011b9b 100644 --- a/drivers/tty/serial/samsung_tty.c +++ b/drivers/tty/serial/samsung_tty.c @@ -1911,7 +1911,7 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport, ourport->tx_irq = ret + 1; } - ret = platform_get_irq(platdev, 1); + ret = platform_get_irq_optional(platdev, 1); if (ret > 0) ourport->tx_irq = ret; /*