From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vikash Garodia Subject: Re: [PATCH v3 3/4] venus: firmware: add no TZ boot and shutdown routine Date: Mon, 06 Aug 2018 13:48:52 +0530 Message-ID: References: <1530731212-30474-1-git-send-email-vgarodia@codeaurora.org> <1530731212-30474-4-git-send-email-vgarodia@codeaurora.org> <4727000d-96ef-2dc5-50df-6bdadcaa156e@linaro.org> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4727000d-96ef-2dc5-50df-6bdadcaa156e@linaro.org> Sender: linux-kernel-owner@vger.kernel.org To: Stanimir Varbanov Cc: hverkuil@xs4all.nl, mchehab@kernel.org, robh@kernel.org, mark.rutland@arm.com, andy.gross@linaro.org, arnd@arndb.de, bjorn.andersson@linaro.org, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-soc@vger.kernel.org, devicetree@vger.kernel.org, acourbot@chromium.org, linux-media-owner@vger.kernel.org List-Id: devicetree@vger.kernel.org Hi Stanimir, Thanks for your review. On 2018-07-25 15:06, Stanimir Varbanov wrote: > Hi Vikash, > > On 07/04/2018 10:06 PM, Vikash Garodia wrote: > >> >> #define VENUS_PAS_ID 9 >> -#define VENUS_FW_MEM_SIZE (6 * SZ_1M) >> +#define VENUS_FW_MEM_SIZE (5 * SZ_1M) > > This change should be subject to a separate patch. Ok. > >> + writel_relaxed(reg, reg_base + WRAPPER_A9SS_SW_RESET); >> + >> + /* Make sure reset is asserted before the mapping is removed */ >> + mb(); > > mb() is used for compiler barrier as far as I know, isn't better to > just > read the register and keep the comment? mb() can ensure that the instructions are ordered. This is needed to ensure reset before the mapping is removed. Thanks, Vikash