From patchwork Thu Apr 19 10:18:01 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rui Miguel Silva X-Patchwork-Id: 48806 X-Patchwork-Delegate: hverkuil@xs4all.nl Received: from vger.kernel.org ([209.132.180.67]) by www.linuxtv.org with esmtp (Exim 4.84_2) (envelope-from ) id 1f96eL-000764-Sg; Thu, 19 Apr 2018 10:18:46 +0000 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751836AbeDSKSm (ORCPT + 1 other); Thu, 19 Apr 2018 06:18:42 -0400 Received: from mail-wr0-f194.google.com ([209.85.128.194]:39650 "EHLO mail-wr0-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751420AbeDSKSk (ORCPT ); Thu, 19 Apr 2018 06:18:40 -0400 Received: by mail-wr0-f194.google.com with SMTP id q3-v6so2486231wrj.6 for ; Thu, 19 Apr 2018 03:18:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=Feetipr2RDB4eqVD5XPEiuzeGxFHWvVYuktxwxBn4dg=; b=Y07fkJg0LsyfLjEG+17+UiXRXzJwdFf3Cc2Y4x80IZTnH5IOmowqDxODbt+CUhDNb5 jDvUdUAOEA3Y6XDB875PSi7Pvje9xPF828NFMCURW7VkHx2vs/V/HenKheP8EzLe2RHS GIhM/VlEQX3djgmI8vY/C0J0Z8iIlfnGEeUXQ= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=Feetipr2RDB4eqVD5XPEiuzeGxFHWvVYuktxwxBn4dg=; b=Gzojdcts8UwKKGDjZ/o0phctKOP+lN09L6RB/R1nWgPORtHtP1MJQ4IQOmL1+If8Tj myQwOZT9l/WDvmS7dmcQUcXecwhELLStZgvXO765CvMx0q8BNEUKkgpf/VnQsBk6Rd2d wxMtxzgNLs6K3BFrm0kj6DEfjzTEq2/5fKsmahZts1jBEWbIvSZ06QBuSZ6vep49i3Ud 47QALlKARUMZJz+XK/pv6c6OvA30lVJ2HrFXrapbX8ezXzJGfaOwYJl3JrLsy8WwvCvY T08FKzKYdxRylYdNK55rx8zDQo2bH92NP/HYglfT2eQx40LBK5kph9wkiBYK2HQmd1YG YH9g== X-Gm-Message-State: ALQs6tCx2+G+BDEyKLnCABWDv+mYd8sfcGU1KSY5PY8/i/BxaIhojH0k 0TEg2Val1XYASaf6JwByj3h/Iw== X-Google-Smtp-Source: AIpwx48kkMZIJwyVHQuetbGu5PT/o7CfEkFY4n9M5wzsnnRdkYOivfOrVIZFKMCKaetK57GEu8bVOQ== X-Received: by 2002:adf:b3c3:: with SMTP id x3-v6mr4355633wrd.94.1524133119121; Thu, 19 Apr 2018 03:18:39 -0700 (PDT) Received: from arch-late.local (a109-49-46-234.cpe.netcabo.pt. [109.49.46.234]) by smtp.gmail.com with ESMTPSA id v66sm5220937wmd.41.2018.04.19.03.18.37 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 19 Apr 2018 03:18:38 -0700 (PDT) From: Rui Miguel Silva To: mchehab@kernel.org, sakari.ailus@linux.intel.com, Steve Longerbeam , Philipp Zabel , Rob Herring Cc: linux-media@vger.kernel.org, devel@driverdev.osuosl.org, Shawn Guo , Fabio Estevam , devicetree@vger.kernel.org, Greg Kroah-Hartman , Ryan Harkin , Rui Miguel Silva Subject: [PATCH 04/15] clk: imx7d: reset parent for mipi csi root Date: Thu, 19 Apr 2018 11:18:01 +0100 Message-Id: <20180419101812.30688-5-rui.silva@linaro.org> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180419101812.30688-1-rui.silva@linaro.org> References: <20180419101812.30688-1-rui.silva@linaro.org> Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org To guarantee that we do not get Overflow in image FIFO the outer bandwidth has to be faster than inputer bandwidth. For that it must be possible to set a faster frequency clock. So set new parent to sys_pfd3 clock for the mipi csi block. Signed-off-by: Rui Miguel Silva --- drivers/clk/imx/clk-imx7d.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/clk/imx/clk-imx7d.c b/drivers/clk/imx/clk-imx7d.c index f7f4db2e6fa6..9a1a18ceb132 100644 --- a/drivers/clk/imx/clk-imx7d.c +++ b/drivers/clk/imx/clk-imx7d.c @@ -891,6 +891,9 @@ static void __init imx7d_clocks_init(struct device_node *ccm_node) clk_set_parent(clks[IMX7D_PLL_AUDIO_MAIN_BYPASS], clks[IMX7D_PLL_AUDIO_MAIN]); clk_set_parent(clks[IMX7D_PLL_VIDEO_MAIN_BYPASS], clks[IMX7D_PLL_VIDEO_MAIN]); + clk_set_parent(clks[IMX7D_MIPI_CSI_ROOT_SRC], + clks[IMX7D_PLL_SYS_PFD3_CLK]); + /* use old gpt clk setting, gpt1 root clk must be twice as gpt counter freq */ clk_set_parent(clks[IMX7D_GPT1_ROOT_SRC], clks[IMX7D_OSC_24M_CLK]);