From mboxrd@z Thu Jan 1 00:00:00 1970 From: Roger Quadros Subject: [PATCH v5 06/26] mtd: nand: omap2: Switch to using GPMC-NAND ops for writebuffer empty check Date: Fri, 19 Feb 2016 23:15:28 +0200 Message-ID: <1455916548-3441-7-git-send-email-rogerq@ti.com> References: <1455916548-3441-1-git-send-email-rogerq@ti.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1455916548-3441-1-git-send-email-rogerq@ti.com> Sender: linux-kernel-owner@vger.kernel.org To: tony@atomide.com, computersforpeace@gmail.com Cc: dwmw2@infradead.org, ezequiel@vanguardiasur.com.ar, javier@dowhile0.org, fcooper@ti.com, nsekhar@ti.com, linux-mtd@lists.infradead.org, linux-omap@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Roger Quadros List-Id: devicetree@vger.kernel.org Instead of accessing the gpmc_status register directly start using the gpmc_nand_ops->nand_writebuffer_empty() helper to check write buffer empty status. Signed-off-by: Roger Quadros --- drivers/mtd/nand/omap2.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c index eb18c04..088ff62 100644 --- a/drivers/mtd/nand/omap2.c +++ b/drivers/mtd/nand/omap2.c @@ -291,14 +291,13 @@ static void omap_write_buf8(struct mtd_info *mtd, const u_char *buf, int len) { struct omap_nand_info *info = mtd_to_omap(mtd); u_char *p = (u_char *)buf; - u32 status = 0; + bool status; while (len--) { iowrite8(*p++, info->nand.IO_ADDR_W); /* wait until buffer is available for write */ do { - status = readl(info->reg.gpmc_status) & - STATUS_BUFF_EMPTY; + status = info->ops->nand_writebuffer_empty(); } while (!status); } } @@ -326,7 +325,7 @@ static void omap_write_buf16(struct mtd_info *mtd, const u_char * buf, int len) { struct omap_nand_info *info = mtd_to_omap(mtd); u16 *p = (u16 *) buf; - u32 status = 0; + bool status; /* FIXME try bursts of writesw() or DMA ... */ len >>= 1; @@ -334,8 +333,7 @@ static void omap_write_buf16(struct mtd_info *mtd, const u_char * buf, int len) iowrite16(*p++, info->nand.IO_ADDR_W); /* wait until buffer is available for write */ do { - status = readl(info->reg.gpmc_status) & - STATUS_BUFF_EMPTY; + status = info->ops->nand_writebuffer_empty(); } while (!status); } } -- 2.1.4