From patchwork Tue Feb 11 01:54:34 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joonyoung Shim X-Patchwork-Id: 22245 Received: from mail.tu-berlin.de ([130.149.7.33]) by www.linuxtv.org with esmtp (Exim 4.72) (envelope-from ) id 1WD2Ya-0004h5-PR; Tue, 11 Feb 2014 02:54:40 +0100 X-tubIT-Incoming-IP: 209.132.180.67 Received: from vger.kernel.org ([209.132.180.67]) by mail.tu-berlin.de (exim-4.72/mailfrontend-7) with esmtp id 1WD2YY-0006HI-0W; Tue, 11 Feb 2014 02:54:40 +0100 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752163AbaBKByf (ORCPT + 1 other); Mon, 10 Feb 2014 20:54:35 -0500 Received: from mailout4.samsung.com ([203.254.224.34]:54792 "EHLO mailout4.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752108AbaBKBye (ORCPT ); Mon, 10 Feb 2014 20:54:34 -0500 Received: from epcpsbgr3.samsung.com (u143.gpu120.samsung.co.kr [203.254.230.143]) by mailout4.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0N0T0093P6MX23A0@mailout4.samsung.com> for linux-media@vger.kernel.org; Tue, 11 Feb 2014 10:54:33 +0900 (KST) Received: from epcpsbgm2.samsung.com ( [172.20.52.115]) by epcpsbgr3.samsung.com (EPCPMTA) with SMTP id 4A.BF.10092.9D289F25; Tue, 11 Feb 2014 10:54:33 +0900 (KST) X-AuditID: cbfee68f-b7f156d00000276c-11-52f982d9f00c Received: from epmmp2 ( [203.254.227.17]) by epcpsbgm2.samsung.com (EPCPMTA) with SMTP id C0.11.28157.9D289F25; Tue, 11 Feb 2014 10:54:33 +0900 (KST) Received: from localhost.localdomain ([10.89.71.119]) by mmp2.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0N0T00KQI6MX8Q70@mmp2.samsung.com>; Tue, 11 Feb 2014 10:54:33 +0900 (KST) From: Joonyoung Shim To: linux-media@vger.kernel.org Cc: m.chehab@samsung.com, dheitmueller@kernellabs.com Subject: [PATCH] au0828: fix i2c clock speed for DViCO FusionHDTV7 Date: Tue, 11 Feb 2014 10:54:34 +0900 Message-id: <1392083674-18940-1-git-send-email-jy0922.shim@samsung.com> X-Mailer: git-send-email 1.8.1.2 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrALMWRmVeSWpSXmKPExsWyRsSkWPdm088ggw1HtC1u7V7NYtGzYSur xcV18g7MHnOP9TJ69G1ZxejxeZNcAHMUl01Kak5mWWqRvl0CV8bNJZdYC55zVGza+pyxgXEN excjJ4eEgInErT17mCFsMYkL99azdTFycQgJLGWUeHx1FhNM0dIvS1ghEtMZJc7+2w5V1cok 8fDmUUaQKjYBPYk7246DdYgIyEs86b3BBmIzC5hK3PtwgxXEFhZwkjj/9yrYOhYBVYlru/6A 1fMKuEv8OLUe6iQFiZ+XT4AtkBC4zibx7OslqAYBiW+TD7F0MXIAJWQlNh2AOltS4uCKGywT GAUXMDKsYhRNLUguKE5KLzLWK07MLS7NS9dLzs/dxAgMvdP/nvXvYLx7wPoQYzLQuInMUqLJ +cDQzSuJNzQ2M7IwNTE1NjK3NCNNWEmc9/7DpCAhgfTEktTs1NSC1KL4otKc1OJDjEwcnFIN jAsX9wcfO2op3Bm2y2H3f5tzro++s+kfOKQUoslQ/3LrZGuxrAd7fa8+PP/j56mazL8FT62O J8dxGi7V+/rI8o1u5PUMp3LHtnXiS1P1K4pWek02uhFau0OcYVdK+01VpXezV8icnx4pqeDt GG+XOaNz716Ltd/q/1Vcez5VUifdNGt5WZHnYiWW4oxEQy3mouJEAIrUPWxTAgAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprLIsWRmVeSWpSXmKPExsVy+t9jQd2bTT+DDD7sV7G4tXs1i0XPhq2s FhfXyTswe8w91svo0bdlFaPH501yAcxRDYw2GamJKalFCql5yfkpmXnptkrewfHO8aZmBoa6 hpYW5koKeYm5qbZKLj4Bum6ZOUCLlBTKEnNKgUIBicXFSvp2mCaEhrjpWsA0Ruj6hgTB9RgZ oIGENYwZN5dcYi14zlGxaetzxgbGNexdjJwcEgImEku/LGGFsMUkLtxbz9bFyMUhJDCdUeLs v+1QTiuTxMObRxlBqtgE9CTubDvOBGKLCMhLPOm9wQZiMwuYStz7cANskrCAk8T5v1eZQWwW AVWJa7v+gNXzCrhL/Di1HmqzgsTPyyfYJjByL2BkWMUomlqQXFCclJ5rpFecmFtcmpeul5yf u4kRHNjPpHcwrmqwOMQowMGoxMN74dOPICHWxLLiytxDjBIczEoivGftfgYJ8aYkVlalFuXH F5XmpBYfYkwG2j6RWUo0OR8YdXkl8YbGJmZGlkbmhhZGxuakCSuJ8x5stQ4UEkhPLEnNTk0t SC2C2cLEwSnVwFjoELin7Nx6hoe/3XNDlp+dNyu1Ik3nXSHzQ5HgWMO7c0sWh8m1nfygc3Sm 6L63fiZZp08dZPu9bV9wiOpK4ZM5L7b/0AhZXPYsdo+h0NnK/eKSyz4qrWUxjAprLDl6Z82Z sjfqnKUOjx8cXzPbzTmR51OQRvnD3Ym2v/w+Li1TeL9v9psvLoVKLMUZiYZazEXFiQBIWy0x sAIAAA== DLP-Filter: Pass X-MTR: 20000000000000000@CPGS X-CFilter-Loop: Reflected Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-PMX-Version: 6.0.0.2142326, Antispam-Engine: 2.7.2.2107409, Antispam-Data: 2014.2.11.14516 X-PMX-Spam: Gauge=IIIIIIII, Probability=8%, Report=' MULTIPLE_RCPTS 0.1, HTML_00_01 0.05, HTML_00_10 0.05, BODYTEXTP_SIZE_3000_LESS 0, BODY_SIZE_1200_1299 0, BODY_SIZE_2000_LESS 0, BODY_SIZE_5000_LESS 0, BODY_SIZE_7000_LESS 0, URI_ENDS_IN_HTML 0, __ANY_URI 0, __CP_URI_IN_BODY 0, __HAS_FROM 0, __HAS_MSGID 0, __HAS_X_MAILER 0, __HAS_X_MAILING_LIST 0, __MIME_TEXT_ONLY 0, __MULTIPLE_RCPTS_CC_X2 0, __SANE_MSGID 0, __TO_MALFORMED_2 0, __TO_NO_NAME 0, __URI_NO_WWW 0, __URI_NS ' DViCO FusionHDTV7 device that use au0828 can fail to communicate with xc5000 using i2c interface because of high i2c clock speed - i2c clock stretching bug. It causes to fail xc5000 firmware loading normally at the current driver. Already this problem fixed as changing to low i2c clock speed at HVR-950q device, also DViCO FusionHDTV7 device can solve it as using low i2c clock speed - 20KHz. Signed-off-by: Joonyoung Shim --- drivers/media/usb/au0828/au0828-cards.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/usb/au0828/au0828-cards.c b/drivers/media/usb/au0828/au0828-cards.c index dd32dec..6b569f4 100644 --- a/drivers/media/usb/au0828/au0828-cards.c +++ b/drivers/media/usb/au0828/au0828-cards.c @@ -108,7 +108,7 @@ struct au0828_board au0828_boards[] = { .name = "DViCO FusionHDTV USB", .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, - .i2c_clk_divider = AU0828_I2C_CLK_250KHZ, + .i2c_clk_divider = AU0828_I2C_CLK_20KHZ, }, [AU0828_BOARD_HAUPPAUGE_WOODBURY] = { .name = "Hauppauge Woodbury",