From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-sn1nam01on0109.outbound.protection.outlook.com ([104.47.32.109]:9280 "EHLO NAM01-SN1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753305AbcHAMdc (ORCPT ); Mon, 1 Aug 2016 08:33:32 -0400 From: "Takiguchi, Yasunari" To: Mauro Carvalho Chehab , "Bird, Timothy" CC: "linux-media@vger.kernel.org" , "Shimizu, Kazuhiro" , "Yamamoto, Masayuki" , "Yonezawa, Kota" , "Matsumoto, Toshihiko" , "Watanabe, Satoshi (SSS)" , "Berry, Tom" , "Rowand, Frank" , "tbird20d@gmail.com" , "Takiguchi, Yasunari" Subject: RE: Sony tuner chip driver questions Date: Mon, 1 Aug 2016 06:55:18 +0000 Message-ID: <02699364973B424C83A42A84B04FDA852AA1FB@JPYOKXMS113.jp.sony.com> References: <20160729075741.15e1a05b@recife.lan> In-Reply-To: <20160729075741.15e1a05b@recife.lan> Content-Language: ja-JP Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Sender: linux-media-owner@vger.kernel.org List-ID: Dear Mauro Thanks for your replying. I am checking your comments and linux/media codes. I need to discuss with our members about our driver's structure. Especially, 1. SPI > There aren't many DVB drivers that aren't either PCI or USB. > There's one at drivers/media/mmc/siano/smssdio.c, but I guess this is not the > best example. ST is working on upstreaming drivers for some of their SoCs. They're > placing their drivers under drivers/media/platform/sti. Maybe this could help you more on that. 2.Tuner & Demodulator > At the DVB frontend, the tuner and demodulators should be implemented on different > drivers, even when both are encapsulated on the same silicon. > By using two drivers, it makes easier to review the code. It also helps to better > encapsulate the functions on each part of the chip. Our codes for tuner and demodulator driver of user-space are encapsulated in order to optimize tuner control sequence. I will send comments and additional questions after we have internal discussion. Thanks, Takiguchi