From patchwork Wed May 4 14:13:06 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Wu X-Patchwork-Id: 618467 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3r0Knz5S5Cz9t5T for ; Thu, 5 May 2016 00:15:51 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750911AbcEDOO2 (ORCPT ); Wed, 4 May 2016 10:14:28 -0400 Received: from lucky1.263xmail.com ([211.157.147.133]:39866 "EHLO lucky1.263xmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750779AbcEDOO1 (ORCPT ); Wed, 4 May 2016 10:14:27 -0400 Received: from david.wu?rock-chips.com (unknown [192.168.167.105]) by lucky1.263xmail.com (Postfix) with SMTP id 6775A54001; Wed, 4 May 2016 22:14:14 +0800 (CST) X-263anti-spam: KSV:0; X-MAIL-GRAY: 1 X-MAIL-DELIVERY: 0 X-ABS-CHECKED: 4 X-ADDR-CHECKED: 0 X-KSVirus-check: 0 Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.263.net (Postfix) with ESMTP id 824E623ECE; Wed, 4 May 2016 22:14:07 +0800 (CST) X-RL-SENDER: david.wu@rock-chips.com X-SENDER-IP: 58.22.7.114 X-LOGIN-NAME: david.wu@rock-chips.com X-UNIQUE-TAG: X-ATTACHMENT-NUM: 0 X-SENDER: wdc@rock-chips.com X-DNS-TYPE: 0 Received: from unknown (unknown [58.22.7.114]) by smtp.263.net (Postfix) whith SMTP id 3741QCBY5A; Wed, 04 May 2016 22:14:09 +0800 (CST) From: David Wu To: heiko@sntech.de, wsa@the-dreams.de Cc: robh+dt@kernel.org, dianders@chromium.org, andy.shevchenko@gmail.com, pawel.moll@arm.com, mark.rutland@arm.com, ijc+devicetree@hellion.org.uk, galak@codeaurora.org, briannorris@google.com, davidriley@google.com, huangtao@rock-chips.com, hl@rock-chips.com, xjq@rock-chips.com, zyw@rock-chips.com, cf@rock-chips.com, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-i2c@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, David Wu Subject: [PATCH v7 1/9] i2c: rk3x: add documentation to fields in "struct rk3x_i2c" Date: Wed, 4 May 2016 22:13:06 +0800 Message-Id: <1462371194-5809-2-git-send-email-david.wu@rock-chips.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1462371194-5809-1-git-send-email-david.wu@rock-chips.com> References: <1462371194-5809-1-git-send-email-david.wu@rock-chips.com> Sender: linux-i2c-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org Signed-off-by: David Wu Reviewed-by: Douglas Anderson --- Change in v7: - none drivers/i2c/busses/i2c-rk3x.c | 22 +++++++++++++++++++++- 1 file changed, 21 insertions(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-rk3x.c b/drivers/i2c/busses/i2c-rk3x.c index 80bed02..7e45d51 100644 --- a/drivers/i2c/busses/i2c-rk3x.c +++ b/drivers/i2c/busses/i2c-rk3x.c @@ -90,6 +90,26 @@ struct rk3x_i2c_soc_data { int grf_offset; }; +/** + * struct rk3x_i2c - private data of the controller + * @adap: corresponding I2C adapter + * @dev: device for this controller + * @soc_data: related soc data struct + * @regs: virtual memory area + * @clk: clock of i2c bus + * @clk_rate_nb: i2c clk rate change notify + * @t: I2C known timing information + * @lock: spinlock for the i2c bus + * @wait: the waitqueue to wait for i2c transfer + * @busy: the condition for the event to wait for + * @msg: current i2c message + * @addr: addr of i2c slave device + * @mode: mode of i2c transfer + * @is_last_msg: flag determines whether it is the last msg in this transfer + * @state: state of i2c transfer + * @processed: byte length which has been send or received + * @error: error code for i2c transfer + */ struct rk3x_i2c { struct i2c_adapter adap; struct device *dev; @@ -116,7 +136,7 @@ struct rk3x_i2c { /* I2C state machine */ enum rk3x_i2c_state state; - unsigned int processed; /* sent/received bytes */ + unsigned int processed; int error; };