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[82.37.140.16]) by smtp.gmail.com with ESMTPSA id h7sm26519691wmf.9.2016.03.24.04.23.56 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 24 Mar 2016 04:23:56 -0700 (PDT) From: Peter Griffin To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, srinivas.kandagatla@gmail.com, maxime.coquelin@st.com, patrice.chotard@st.com, mchehab@osg.samsung.com Subject: [PATCH 1/3] [media] c8sectpfe: Fix broken circular buffer wp management Date: Thu, 24 Mar 2016 11:23:50 +0000 Message-Id: <1458818632-25552-2-git-send-email-peter.griffin@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1458818632-25552-1-git-send-email-peter.griffin@linaro.org> References: <1458818632-25552-1-git-send-email-peter.griffin@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160324_042419_787201_14A3834D X-CRM114-Status: GOOD ( 10.82 ) X-Spam-Score: -2.7 (--) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.griffin@linaro.org, hugues.fruchet@st.com, lee.jones@linaro.org, linux-media@vger.kernel.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_MED, T_DKIM_INVALID, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP During the review process, a regression was intoduced in the circular buffer write pointer management. This means that wp doesn't get managed properly once the buffer becomes full. Signed-off-by: Peter Griffin --- drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c b/drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c index 78e3cb9..875d384 100644 --- a/drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c +++ b/drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c @@ -130,7 +130,7 @@ static void channel_swdemux_tsklet(unsigned long data) writel(channel->back_buffer_busaddr, channel->irec + DMA_PRDS_BUSRP_TP(0)); else - writel(wp, channel->irec + DMA_PRDS_BUSWP_TP(0)); + writel(wp, channel->irec + DMA_PRDS_BUSRP_TP(0)); } static int c8sectpfe_start_feed(struct dvb_demux_feed *dvbdmxfeed)