From patchwork Fri Oct 8 09:24:01 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= X-Patchwork-Id: 240931 Received: from lists.sourceforge.net (lists.sourceforge.net [216.34.181.88]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id o989OOrT021896 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Fri, 8 Oct 2010 09:25:00 GMT Received: from localhost ([127.0.0.1] helo=sfs-ml-4.v29.ch3.sourceforge.com) by sfs-ml-4.v29.ch3.sourceforge.com with esmtp (Exim 4.69) (envelope-from ) id 1P49Bf-0007N6-3i; Fri, 08 Oct 2010 09:24:23 +0000 Received: from sog-mx-1.v43.ch3.sourceforge.com ([172.29.43.191] helo=mx.sourceforge.net) by sfs-ml-4.v29.ch3.sourceforge.com with esmtp (Exim 4.69) (envelope-from ) id 1P49Be-0007Mz-Gj for spi-devel-general@lists.sourceforge.net; Fri, 08 Oct 2010 09:24:22 +0000 X-ACL-Warn: Received: from metis.ext.pengutronix.de ([92.198.50.35]) by sog-mx-1.v43.ch3.sourceforge.com with esmtps (TLSv1:AES256-SHA:256) (Exim 4.69) id 1P49Bc-0003YY-LN for spi-devel-general@lists.sourceforge.net; Fri, 08 Oct 2010 09:24:22 +0000 Received: from octopus.hi.pengutronix.de ([2001:6f8:1178:2:215:17ff:fe12:23b0]) by metis.ext.pengutronix.de with esmtp (Exim 4.71) (envelope-from ) id 1P49BS-0001jm-3a; Fri, 08 Oct 2010 11:24:10 +0200 Received: from ukl by octopus.hi.pengutronix.de with local (Exim 4.69) (envelope-from ) id 1P49BQ-0005RB-AA; Fri, 08 Oct 2010 11:24:08 +0200 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= To: spi-devel-general@lists.sourceforge.net Subject: [PATCH 7/6] spi/imx: Support different fifo sizes Date: Fri, 8 Oct 2010 11:24:01 +0200 Message-Id: <1286529841-20800-1-git-send-email-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 1.7.2.3 In-Reply-To: <20100902143908.GK14214@pengutronix.de> References: <20100902143908.GK14214@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2001:6f8:1178:2:215:17ff:fe12:23b0 X-SA-Exim-Mail-From: ukl@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: spi-devel-general@lists.sourceforge.net X-Spam-Score: -0.0 (/) X-Spam-Report: Spam Filtering performed by mx.sourceforge.net. See http://spamassassin.org/tag/ for more details. -0.0 T_RP_MATCHES_RCVD Envelope sender domain matches handover relay domain X-Headers-End: 1P49Bc-0003YY-LN Cc: Jason Wang , Sascha Hauer , amit.kucheria@canonical.com, David Jander , linux-arm-kernel@lists.infradead.org X-BeenThere: spi-devel-general@lists.sourceforge.net X-Mailman-Version: 2.1.9 Precedence: list List-Id: Linux SPI core/device drivers discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: spi-devel-general-bounces@lists.sourceforge.net X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter1.kernel.org [140.211.167.41]); Fri, 08 Oct 2010 09:25:01 +0000 (UTC) X-MIME-Autoconverted: from base64 to 8bit by demeter1.kernel.org id o989OOrT021896 diff --git a/drivers/spi/spi_imx.c b/drivers/spi/spi_imx.c index 6bab2cf..55a38e2 100644 --- a/drivers/spi/spi_imx.c +++ b/drivers/spi/spi_imx.c @@ -77,6 +77,7 @@ struct spi_imx_devtype_data { void (*trigger)(struct spi_imx_data *); int (*rx_available)(struct spi_imx_data *); void (*reset)(struct spi_imx_data *); + unsigned int fifosize; }; struct spi_imx_data { @@ -541,6 +542,7 @@ static struct spi_imx_devtype_data spi_imx_devtype_data[] __devinitdata = { .trigger = mx1_trigger, .rx_available = mx1_rx_available, .reset = mx1_reset, + .fifosize = 8, }, #endif #ifdef CONFIG_SPI_IMX_VER_0_0 @@ -550,6 +552,7 @@ static struct spi_imx_devtype_data spi_imx_devtype_data[] __devinitdata = { .trigger = mx27_trigger, .rx_available = mx27_rx_available, .reset = spi_imx0_0_reset, + .fifosize = 8, }, #endif #ifdef CONFIG_SPI_IMX_VER_0_4 @@ -559,6 +562,7 @@ static struct spi_imx_devtype_data spi_imx_devtype_data[] __devinitdata = { .trigger = mx31_trigger, .rx_available = mx31_rx_available, .reset = spi_imx0_4_reset, + .fifosize = 8, }, #endif #ifdef CONFIG_SPI_IMX_VER_0_7 @@ -568,6 +572,7 @@ static struct spi_imx_devtype_data spi_imx_devtype_data[] __devinitdata = { .trigger = mx31_trigger, .rx_available = mx31_rx_available, .reset = spi_imx0_4_reset, + .fifosize = 8, }, #endif #ifdef CONFIG_SPI_IMX_VER_2_3 @@ -577,6 +582,7 @@ static struct spi_imx_devtype_data spi_imx_devtype_data[] __devinitdata = { .trigger = spi_imx2_3_trigger, .rx_available = spi_imx2_3_rx_available, .reset = spi_imx2_3_reset, + .fifosize = 64, }, #endif }; @@ -596,7 +602,7 @@ static void spi_imx_chipselect(struct spi_device *spi, int is_active) static void spi_imx_push(struct spi_imx_data *spi_imx) { - while (spi_imx->txfifo < 8) { + while (spi_imx->txfifo < spi_imx->devtype_data.fifosize) { if (!spi_imx->count) break; spi_imx->tx(spi_imx);