From patchwork Mon Jul 3 09:45:18 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Martin Kurbanov X-Patchwork-Id: 699208 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9937EEB64DD for ; Mon, 3 Jul 2023 11:41:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229895AbjGCLlz (ORCPT ); Mon, 3 Jul 2023 07:41:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53450 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229534AbjGCLly (ORCPT ); Mon, 3 Jul 2023 07:41:54 -0400 Received: from mx1.sberdevices.ru (mx2.sberdevices.ru [45.89.224.132]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D0E5EEC; Mon, 3 Jul 2023 04:41:51 -0700 (PDT) Received: from p-infra-ksmg-sc-msk02 (localhost [127.0.0.1]) by mx1.sberdevices.ru (Postfix) with ESMTP id BEC651204F9; Mon, 3 Jul 2023 12:45:45 +0300 (MSK) DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.sberdevices.ru BEC651204F9 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sberdevices.ru; s=mail; t=1688377545; bh=wRrn6iFZ9wvY6EzviQOv3A+7Kxncor6/Mip9AQNivGs=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type:From; b=qlJ8LqLVZI7V75BuBRdc2Ts/lhLBHonx/zyV9YbrVjgIRpk6XNJR6KF7wrHocIqyA 8Pl6yyBTZRalMxo6FvHdAFMQl2a+r7uksM+RPs4WSvxUJFJrl7QxfOzTbc3zNNviHQ TLcV6T/DqNrgtuiBqjTDxYudWtc+peqNfXWw8QQDzyey6LvRaEMou5JIk6YbjRtWVc /GFkv9pjb3CXhCiSkh9L64BhYhLfYE9cxyklR2gkUuaomQgvEZtH3kBffB+wuLLArE lvB14BhyOagI3489Sg/6Sbsec/BzgSY2QPDHxCWDrvM8mMZHHKBnkk4UsaY74RQ9MI m5lSJQdS2jYDg== Received: from p-i-exch-sc-m01.sberdevices.ru (p-i-exch-sc-m01.sberdevices.ru [172.16.192.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.sberdevices.ru (Postfix) with ESMTPS; Mon, 3 Jul 2023 12:45:44 +0300 (MSK) Received: from CAB-WSD-0004828.sigma.sbrf.ru (100.64.160.123) by p-i-exch-sc-m01.sberdevices.ru (172.16.192.107) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.30; Mon, 3 Jul 2023 12:45:43 +0300 From: Martin Kurbanov To: Mark Brown , Neil Armstrong CC: , , , , Martin Kurbanov Subject: [PATCH v1 2/2] spi: amlogic-spifc-a1: add support for max_speed_hz Date: Mon, 3 Jul 2023 12:45:18 +0300 Message-ID: <20230703094518.53755-3-mmkurbanov@sberdevices.ru> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230703094518.53755-1-mmkurbanov@sberdevices.ru> References: <20230703094518.53755-1-mmkurbanov@sberdevices.ru> MIME-Version: 1.0 X-Originating-IP: [100.64.160.123] X-ClientProxiedBy: p-i-exch-sc-m01.sberdevices.ru (172.16.192.107) To p-i-exch-sc-m01.sberdevices.ru (172.16.192.107) X-KSMG-Rule-ID: 10 X-KSMG-Message-Action: clean X-KSMG-AntiSpam-Lua-Profiles: 178391 [Jul 03 2023] X-KSMG-AntiSpam-Version: 5.9.59.0 X-KSMG-AntiSpam-Envelope-From: MMKurbanov@sberdevices.ru X-KSMG-AntiSpam-Rate: 0 X-KSMG-AntiSpam-Status: not_detected X-KSMG-AntiSpam-Method: none X-KSMG-AntiSpam-Auth: dkim=none X-KSMG-AntiSpam-Info: LuaCore: 517 517 b0056c19d8e10afbb16cb7aad7258dedb0179a79, {Tracking_from_domain_doesnt_match_to}, sberdevices.ru:5.0.1,7.1.1; 100.64.160.123:7.1.2; 127.0.0.199:7.1.2; d41d8cd98f00b204e9800998ecf8427e.com:7.1.1; p-i-exch-sc-m01.sberdevices.ru:5.0.1,7.1.1, FromAlignment: s, {Tracking_white_helo}, ApMailHostAddress: 100.64.160.123 X-MS-Exchange-Organization-SCL: -1 X-KSMG-AntiSpam-Interceptor-Info: scan successful X-KSMG-AntiPhishing: Clean X-KSMG-LinksScanning: Clean X-KSMG-AntiVirus: Kaspersky Secure Mail Gateway, version 2.0.1.6960, bases: 2023/07/03 07:50:00 #21557756 X-KSMG-AntiVirus-Status: Clean, skipped Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org This patch sets the clock rate (spi_transfer->max_speed_hz) from the amlogic_spifc_a1_exec_op(). Signed-off-by: Martin Kurbanov --- drivers/spi/spi-amlogic-spifc-a1.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/drivers/spi/spi-amlogic-spifc-a1.c b/drivers/spi/spi-amlogic-spifc-a1.c index 0c21917e4caf..7ef2a0448990 100644 --- a/drivers/spi/spi-amlogic-spifc-a1.c +++ b/drivers/spi/spi-amlogic-spifc-a1.c @@ -107,6 +107,7 @@ struct amlogic_spifc_a1 { struct clk *clk; struct device *dev; void __iomem *base; + u32 curr_speed_hz; }; static int amlogic_spifc_a1_request(struct amlogic_spifc_a1 *spifc, bool read) @@ -235,6 +236,20 @@ static int amlogic_spifc_a1_write(struct amlogic_spifc_a1 *spifc, return amlogic_spifc_a1_request(spifc, false); } +static int amlogic_spifc_a1_set_freq(struct amlogic_spifc_a1 *spifc, u32 freq) +{ + int ret; + + if (freq == spifc->curr_speed_hz) + return 0; + + ret = clk_set_rate(spifc->clk, freq); + if (!ret) + spifc->curr_speed_hz = freq; + + return ret; +} + static int amlogic_spifc_a1_exec_op(struct spi_mem *mem, const struct spi_mem_op *op) { @@ -243,6 +258,10 @@ static int amlogic_spifc_a1_exec_op(struct spi_mem *mem, size_t data_size = op->data.nbytes; int ret; + ret = amlogic_spifc_a1_set_freq(spifc, mem->spi->max_speed_hz); + if (ret) + return ret; + amlogic_spifc_a1_user_init(spifc); amlogic_spifc_a1_set_cmd(spifc, SPIFC_A1_USER_CMD(op));