From patchwork Wed Jun 9 07:19:18 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 457289 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 13A34C47095 for ; Wed, 9 Jun 2021 07:19:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E46FA6008E for ; Wed, 9 Jun 2021 07:19:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234126AbhFIHVk (ORCPT ); Wed, 9 Jun 2021 03:21:40 -0400 Received: from mail.kernel.org ([198.145.29.99]:37074 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237250AbhFIHVj (ORCPT ); Wed, 9 Jun 2021 03:21:39 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 4AA3561361; Wed, 9 Jun 2021 07:19:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1623223169; bh=I55EZUDspXTzWZV8NDrfytGqVmsJsokg7NgjMjvlhfg=; h=From:To:Cc:Subject:Date:From; b=VWaCjlSvB8JIK6eTl5gbNGWb8maZ7qpPj6m8AT+AIf49hnaITX68OUSKCFSwyhZTm b+RvPTWRrj+Ch8Io0mriXukncJfAgudgJzlULfS9bqvdCF/TYRui7uh5KX8D8iPqhB YmCUT0LxKp1IXGICcS/AIYsmCwWpoXwbRkzrNK7o= From: Greg Kroah-Hartman To: Mark Brown Cc: linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org, Greg Kroah-Hartman Subject: [PATCH] spi: remove spi_set_cs_timing() Date: Wed, 9 Jun 2021 09:19:18 +0200 Message-Id: <20210609071918.2852069-1-gregkh@linuxfoundation.org> X-Mailer: git-send-email 2.32.0 MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=3564; h=from:subject; bh=I55EZUDspXTzWZV8NDrfytGqVmsJsokg7NgjMjvlhfg=; b=owGbwMvMwCRo6H6F97bub03G02pJDAkHsvPve5YGlKj6/jrF8rg1yObo1rMMa/a6qtqzG7AmaO00 b37WEcvCIMjEICumyPJlG8/R/RWHFL0MbU/DzGFlAhnCwMUpABN5wcowP6Ipd9O/cM/d71SbN2ks01 K7fuZ4OsNcIfE0XtYvX75e3id+//o2gT6r+jlzAA== X-Developer-Key: i=gregkh@linuxfoundation.org; a=openpgp; fpr=F4B60CC5BF78C2214A313DCB3147D40DDB2DFB29 Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org No one seems to be using this global and exported function, so remove it as it is no longer needed. Cc: Mark Brown Signed-off-by: Greg Kroah-Hartman --- drivers/spi/spi.c | 73 ----------------------------------------- include/linux/spi/spi.h | 5 --- 2 files changed, 78 deletions(-) diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index e353b7a9e54e..86965c1d7ad0 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -3453,79 +3453,6 @@ int spi_setup(struct spi_device *spi) } EXPORT_SYMBOL_GPL(spi_setup); -/** - * spi_set_cs_timing - configure CS setup, hold, and inactive delays - * @spi: the device that requires specific CS timing configuration - * @setup: CS setup time specified via @spi_delay - * @hold: CS hold time specified via @spi_delay - * @inactive: CS inactive delay between transfers specified via @spi_delay - * - * Return: zero on success, else a negative error code. - */ -int spi_set_cs_timing(struct spi_device *spi, struct spi_delay *setup, - struct spi_delay *hold, struct spi_delay *inactive) -{ - struct device *parent = spi->controller->dev.parent; - size_t len; - int status; - - if (spi->controller->set_cs_timing && - !(spi->cs_gpiod || gpio_is_valid(spi->cs_gpio))) { - mutex_lock(&spi->controller->io_mutex); - - if (spi->controller->auto_runtime_pm) { - status = pm_runtime_get_sync(parent); - if (status < 0) { - mutex_unlock(&spi->controller->io_mutex); - pm_runtime_put_noidle(parent); - dev_err(&spi->controller->dev, "Failed to power device: %d\n", - status); - return status; - } - - status = spi->controller->set_cs_timing(spi, setup, - hold, inactive); - pm_runtime_mark_last_busy(parent); - pm_runtime_put_autosuspend(parent); - } else { - status = spi->controller->set_cs_timing(spi, setup, hold, - inactive); - } - - mutex_unlock(&spi->controller->io_mutex); - return status; - } - - if ((setup && setup->unit == SPI_DELAY_UNIT_SCK) || - (hold && hold->unit == SPI_DELAY_UNIT_SCK) || - (inactive && inactive->unit == SPI_DELAY_UNIT_SCK)) { - dev_err(&spi->dev, - "Clock-cycle delays for CS not supported in SW mode\n"); - return -ENOTSUPP; - } - - len = sizeof(struct spi_delay); - - /* copy delays to controller */ - if (setup) - memcpy(&spi->controller->cs_setup, setup, len); - else - memset(&spi->controller->cs_setup, 0, len); - - if (hold) - memcpy(&spi->controller->cs_hold, hold, len); - else - memset(&spi->controller->cs_hold, 0, len); - - if (inactive) - memcpy(&spi->controller->cs_inactive, inactive, len); - else - memset(&spi->controller->cs_inactive, 0, len); - - return 0; -} -EXPORT_SYMBOL_GPL(spi_set_cs_timing); - static int _spi_xfer_word_delay_update(struct spi_transfer *xfer, struct spi_device *spi) { diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index 74239d65c7fd..f924160e995f 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -1108,11 +1108,6 @@ static inline void spi_message_free(struct spi_message *m) kfree(m); } -extern int spi_set_cs_timing(struct spi_device *spi, - struct spi_delay *setup, - struct spi_delay *hold, - struct spi_delay *inactive); - extern int spi_setup(struct spi_device *spi); extern int spi_async(struct spi_device *spi, struct spi_message *message); extern int spi_async_locked(struct spi_device *spi,