From patchwork Fri Jan 13 06:23:33 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 1725797 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=none (no SPF record) smtp.mailfrom=lists.infradead.org (client-ip=2607:7c80:54:3::133; helo=bombadil.infradead.org; envelope-from=linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org; receiver=) Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; secure) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=4Lan7h63; dkim-atps=neutral Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-384) server-digest SHA384) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4NtY5T2yNcz23fp for ; Fri, 13 Jan 2023 18:31:57 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=z7NzUxRGQOyfCKv/NCA4hg5boUXNiVod34f0hQSvDw8=; b=4Lan7h630ay9vJ DL0hLArrSzjoTO4WEP4sCX0ieWs6VdeO2MzgKuBocbtogo9tFHhVeNkmSormFMvMGICMGRDBK2K8r Y2H+POJO2o0MAbNjQ4mDAm7RnYVIjYhHL/4Ub9A//QgzYC+INzdWuukk7IjqRoNa57M03UTkiecYW RXh0NMtlmC5GiMdnLrFQvoeyWh62Bo3HZImEJmn6S8+8NGbiXu9HevbzWZaJrvYBbQb29LXY3t4LU fdm7omadbrkao32uP3/rIvhfP7/B7gklYgtQYPDigZ6Lr0pQcSlblfFXGi++lBdMZr4CTWooGrDe8 ZdYMu7EtpJ5XFvpYN5bQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pGEWt-000zIV-U8; Fri, 13 Jan 2023 07:31:11 +0000 Received: from [2001:4bb8:181:656b:9509:7d20:8d39:f895] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1pGDUW-000lwz-NO; Fri, 13 Jan 2023 06:24:41 +0000 From: Christoph Hellwig To: Yoshinori Sato , Rich Felker , Arnd Bergmann , Greg Kroah-Hartman Cc: Laurent Pinchart , Kieran Bingham , Geert Uytterhoeven , linux-kernel@vger.kernel.org, linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-arch@vger.kernel.org, dmaengine@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org, linux-i2c@vger.kernel.org, linux-input@vger.kernel.org, linux-media@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org, netdev@vger.kernel.org, linux-gpio@vger.kernel.org, linux-rtc@vger.kernel.org, linux-spi@vger.kernel.org, linux-serial@vger.kernel.org, linux-usb@vger.kernel.org, linux-fbdev@vger.kernel.org, alsa-devel@alsa-project.org, linux-sh@vger.kernel.org Subject: [PATCH 16/22] spi: remove spi-sh-sci Date: Fri, 13 Jan 2023 07:23:33 +0100 Message-Id: <20230113062339.1909087-17-hch@lst.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230113062339.1909087-1-hch@lst.de> References: <20230113062339.1909087-1-hch@lst.de> MIME-Version: 1.0 X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-mtd" Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org Now that arch/sh is removed this driver is dead code. Signed-off-by: Christoph Hellwig --- drivers/spi/Kconfig | 7 -- drivers/spi/Makefile | 1 - drivers/spi/spi-sh-sci.c | 197 --------------------------------------- 3 files changed, 205 deletions(-) delete mode 100644 drivers/spi/spi-sh-sci.c diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig index 7508dcef909c78..76f3bc6f8c81fc 100644 --- a/drivers/spi/Kconfig +++ b/drivers/spi/Kconfig @@ -882,13 +882,6 @@ config SPI_SH_MSIOF help SPI driver for SuperH and SH Mobile MSIOF blocks. -config SPI_SH_SCI - tristate "SuperH SCI SPI controller" - depends on SUPERH - select SPI_BITBANG - help - SPI driver for SuperH SCI blocks. - config SPI_SH_HSPI tristate "SuperH HSPI controller" depends on ARCH_RENESAS || COMPILE_TEST diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile index 342a7eb5181c9b..27d877440c6539 100644 --- a/drivers/spi/Makefile +++ b/drivers/spi/Makefile @@ -118,7 +118,6 @@ obj-$(CONFIG_SPI_S3C64XX) += spi-s3c64xx.o obj-$(CONFIG_SPI_SC18IS602) += spi-sc18is602.o obj-$(CONFIG_SPI_SH_HSPI) += spi-sh-hspi.o obj-$(CONFIG_SPI_SH_MSIOF) += spi-sh-msiof.o -obj-$(CONFIG_SPI_SH_SCI) += spi-sh-sci.o obj-$(CONFIG_SPI_SIFIVE) += spi-sifive.o obj-$(CONFIG_SPI_SLAVE_MT27XX) += spi-slave-mt27xx.o obj-$(CONFIG_SPI_SN_F_OSPI) += spi-sn-f-ospi.o diff --git a/drivers/spi/spi-sh-sci.c b/drivers/spi/spi-sh-sci.c deleted file mode 100644 index 8f30531e141867..00000000000000 --- a/drivers/spi/spi-sh-sci.c +++ /dev/null @@ -1,197 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * SH SCI SPI interface - * - * Copyright (c) 2008 Magnus Damm - * - * Based on S3C24XX GPIO based SPI driver, which is: - * Copyright (c) 2006 Ben Dooks - * Copyright (c) 2006 Simtec Electronics - */ - -#include -#include -#include -#include - -#include -#include -#include - -#include -#include - -struct sh_sci_spi { - struct spi_bitbang bitbang; - - void __iomem *membase; - unsigned char val; - struct sh_spi_info *info; - struct platform_device *dev; -}; - -#define SCSPTR(sp) (sp->membase + 0x1c) -#define PIN_SCK (1 << 2) -#define PIN_TXD (1 << 0) -#define PIN_RXD PIN_TXD -#define PIN_INIT ((1 << 1) | (1 << 3) | PIN_SCK | PIN_TXD) - -static inline void setbits(struct sh_sci_spi *sp, int bits, int on) -{ - /* - * We are the only user of SCSPTR so no locking is required. - * Reading bit 2 and 0 in SCSPTR gives pin state as input. - * Writing the same bits sets the output value. - * This makes regular read-modify-write difficult so we - * use sp->val to keep track of the latest register value. - */ - - if (on) - sp->val |= bits; - else - sp->val &= ~bits; - - iowrite8(sp->val, SCSPTR(sp)); -} - -static inline void setsck(struct spi_device *dev, int on) -{ - setbits(spi_master_get_devdata(dev->master), PIN_SCK, on); -} - -static inline void setmosi(struct spi_device *dev, int on) -{ - setbits(spi_master_get_devdata(dev->master), PIN_TXD, on); -} - -static inline u32 getmiso(struct spi_device *dev) -{ - struct sh_sci_spi *sp = spi_master_get_devdata(dev->master); - - return (ioread8(SCSPTR(sp)) & PIN_RXD) ? 1 : 0; -} - -#define spidelay(x) ndelay(x) - -#include "spi-bitbang-txrx.h" - -static u32 sh_sci_spi_txrx_mode0(struct spi_device *spi, - unsigned nsecs, u32 word, u8 bits, - unsigned flags) -{ - return bitbang_txrx_be_cpha0(spi, nsecs, 0, flags, word, bits); -} - -static u32 sh_sci_spi_txrx_mode1(struct spi_device *spi, - unsigned nsecs, u32 word, u8 bits, - unsigned flags) -{ - return bitbang_txrx_be_cpha1(spi, nsecs, 0, flags, word, bits); -} - -static u32 sh_sci_spi_txrx_mode2(struct spi_device *spi, - unsigned nsecs, u32 word, u8 bits, - unsigned flags) -{ - return bitbang_txrx_be_cpha0(spi, nsecs, 1, flags, word, bits); -} - -static u32 sh_sci_spi_txrx_mode3(struct spi_device *spi, - unsigned nsecs, u32 word, u8 bits, - unsigned flags) -{ - return bitbang_txrx_be_cpha1(spi, nsecs, 1, flags, word, bits); -} - -static void sh_sci_spi_chipselect(struct spi_device *dev, int value) -{ - struct sh_sci_spi *sp = spi_master_get_devdata(dev->master); - - if (sp->info->chip_select) - (sp->info->chip_select)(sp->info, dev->chip_select, value); -} - -static int sh_sci_spi_probe(struct platform_device *dev) -{ - struct resource *r; - struct spi_master *master; - struct sh_sci_spi *sp; - int ret; - - master = spi_alloc_master(&dev->dev, sizeof(struct sh_sci_spi)); - if (master == NULL) { - dev_err(&dev->dev, "failed to allocate spi master\n"); - ret = -ENOMEM; - goto err0; - } - - sp = spi_master_get_devdata(master); - - platform_set_drvdata(dev, sp); - sp->info = dev_get_platdata(&dev->dev); - if (!sp->info) { - dev_err(&dev->dev, "platform data is missing\n"); - ret = -ENOENT; - goto err1; - } - - /* setup spi bitbang adaptor */ - sp->bitbang.master = master; - sp->bitbang.master->bus_num = sp->info->bus_num; - sp->bitbang.master->num_chipselect = sp->info->num_chipselect; - sp->bitbang.chipselect = sh_sci_spi_chipselect; - - sp->bitbang.txrx_word[SPI_MODE_0] = sh_sci_spi_txrx_mode0; - sp->bitbang.txrx_word[SPI_MODE_1] = sh_sci_spi_txrx_mode1; - sp->bitbang.txrx_word[SPI_MODE_2] = sh_sci_spi_txrx_mode2; - sp->bitbang.txrx_word[SPI_MODE_3] = sh_sci_spi_txrx_mode3; - - r = platform_get_resource(dev, IORESOURCE_MEM, 0); - if (r == NULL) { - ret = -ENOENT; - goto err1; - } - sp->membase = ioremap(r->start, resource_size(r)); - if (!sp->membase) { - ret = -ENXIO; - goto err1; - } - sp->val = ioread8(SCSPTR(sp)); - setbits(sp, PIN_INIT, 1); - - ret = spi_bitbang_start(&sp->bitbang); - if (!ret) - return 0; - - setbits(sp, PIN_INIT, 0); - iounmap(sp->membase); - err1: - spi_master_put(sp->bitbang.master); - err0: - return ret; -} - -static int sh_sci_spi_remove(struct platform_device *dev) -{ - struct sh_sci_spi *sp = platform_get_drvdata(dev); - - spi_bitbang_stop(&sp->bitbang); - setbits(sp, PIN_INIT, 0); - iounmap(sp->membase); - spi_master_put(sp->bitbang.master); - return 0; -} - -static struct platform_driver sh_sci_spi_drv = { - .probe = sh_sci_spi_probe, - .remove = sh_sci_spi_remove, - .driver = { - .name = "spi_sh_sci", - }, -}; -module_platform_driver(sh_sci_spi_drv); - -MODULE_DESCRIPTION("SH SCI SPI Driver"); -MODULE_AUTHOR("Magnus Damm "); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:spi_sh_sci");