From patchwork Mon Jul 6 14:34:35 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marc Kleine-Budde X-Patchwork-Id: 11645983 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9ECD1739 for ; Mon, 6 Jul 2020 14:36:28 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 76A942073E for ; Mon, 6 Jul 2020 14:36:28 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="pbnpxOkb" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 76A942073E Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=p11kre3J0ODs+BZlyy6ReF8H4f7wNtaAfNlgbwmDjzg=; b=pbnpxOkbBuR41FlKYQJNDBinC 8YyNHQ+xE003tke9uZWNtX1axBUM69Dm5TQ/L8WNVi4Dq2tuEyIMtH1U4CKIoTVubCLqTvpouePLx zsN4t08tTR9/RvMtGJL732+vfi1CmpgV2qmQ1BYcwhMnq7mjN5TWRfcGKPlao5Rk2JERnraRD88tw AXGfEFXtWCCpp2aV2OgquvSYYLvWWOr7dl60gwzPSzrT/PbdvefxaXlzHMQjbYX6jhSFi4KEs4VOg sQ62BbJ08oNh8Y3ILd+g1Zpft0q1jhn+tmH0hlieSTBvXhwjmaNT/MvB6e8hqZ1BjzNLZaEELoYPx UhAJ5lTjg==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jsSCy-0004xi-Dz; Mon, 06 Jul 2020 14:35:00 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jsSCp-0004tj-W8 for linux-arm-kernel@lists.infradead.org; Mon, 06 Jul 2020 14:34:52 +0000 Received: from heimdall.vpn.pengutronix.de ([2001:67c:670:205:1d::14] helo=blackshift.org) by metis.ext.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1jsSCk-0005DP-LT; Mon, 06 Jul 2020 16:34:46 +0200 From: Marc Kleine-Budde To: Mark Brown Subject: [PATCH v2 02/10] spi: spi-sun6i: sun6i_spi_transfer_one(): report effectivly used speed_hz of transfer Date: Mon, 6 Jul 2020 16:34:35 +0200 Message-Id: <20200706143443.9855-3-mkl@pengutronix.de> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200706143443.9855-1-mkl@pengutronix.de> References: <20200706143443.9855-1-mkl@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2001:67c:670:205:1d::14 X-SA-Exim-Mail-From: mkl@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200706_103452_054821_691702CC X-CRM114-Status: GOOD ( 10.81 ) X-Spam-Score: 0.0 (/) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Maxime Ripard , linux-spi@vger.kernel.org, Chen-Yu Tsai , Marc Kleine-Budde , kernel@pengutronix.de, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org This patch implementes the reporting of the effectivly used speed_hz for the transfer by setting tfr->effective_speed_hz. See the following patch, which adds this feature to the SPI core for more information: 5d7e2b5ed585 spi: core: allow reporting the effectivly used speed_hz for a transfer Acked-by: Maxime Ripard Signed-off-by: Marc Kleine-Budde --- drivers/spi/spi-sun6i.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/spi/spi-sun6i.c b/drivers/spi/spi-sun6i.c index fa11cc0e809b..64b4d8077010 100644 --- a/drivers/spi/spi-sun6i.c +++ b/drivers/spi/spi-sun6i.c @@ -291,9 +291,11 @@ static int sun6i_spi_transfer_one(struct spi_master *master, div_cdr2 = DIV_ROUND_UP(div_cdr1, 2); if (div_cdr2 <= (SUN6I_CLK_CTL_CDR2_MASK + 1)) { reg = SUN6I_CLK_CTL_CDR2(div_cdr2 - 1) | SUN6I_CLK_CTL_DRS; + tfr->effective_speed_hz = mclk_rate / (2 * div_cdr2); } else { div = min(SUN6I_CLK_CTL_CDR1_MASK, order_base_2(div_cdr1)); reg = SUN6I_CLK_CTL_CDR1(div); + tfr->effective_speed_hz = mclk_rate / (1 << div); } sun6i_spi_write(sspi, SUN6I_CLK_CTL_REG, reg);