From: Ladislav Michl <ladis@linux-mips.org>
Date: Fri, 12 Jan 2018 13:16:28 +0000 (+0100)
Subject: mtd: onenand: omap2: Do not make delay for GPIO OMAP3 specific
X-Git-Tag: v4.16-rc1~191^2^2~13
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=f5229331f13b84389cd71a58ccd5e15e5cb091c2;p=thirdparty%2Fkernel%2Flinux.git

mtd: onenand: omap2: Do not make delay for GPIO OMAP3 specific

Second commit in driver history (782b7a367d81: "[MTD] [OneNAND] OMAP3:
add delay for GPIO") added quirk for waiting until GPIO line settle.
As DMA was disabled for OMAP2 boards, chances are this problem was
not OMAP3 specific and as it is just one register read, previous
test for SoC type is approximately as expensive as read itself.
Make delay unconditional, which allows removing SoC specific code
alltogether.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Reviewed-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Acked-by: Roger Quadros <rogerq@ti.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
---

diff --git a/drivers/mtd/onenand/omap2.c b/drivers/mtd/onenand/omap2.c
index c9ff67100ef43..e4857a41760d1 100644
--- a/drivers/mtd/onenand/omap2.c
+++ b/drivers/mtd/onenand/omap2.c
@@ -57,7 +57,6 @@ struct omap2_onenand {
 	struct dma_chan *dma_chan;
 	int freq;
 	int (*setup)(void __iomem *base, int *freq_ptr);
-	u8 flags;
 };
 
 static void omap2_onenand_dma_complete_func(void *completion)
@@ -148,9 +147,8 @@ static int omap2_onenand_wait(struct mtd_info *mtd, int state)
 		if (!(syscfg & ONENAND_SYS_CFG1_IOBE)) {
 			syscfg |= ONENAND_SYS_CFG1_IOBE;
 			write_reg(c, syscfg, ONENAND_REG_SYS_CFG1);
-			if (c->flags & ONENAND_IN_OMAP34XX)
-				/* Add a delay to let GPIO settle */
-				syscfg = read_reg(c, ONENAND_REG_SYS_CFG1);
+			/* Add a delay to let GPIO settle */
+			syscfg = read_reg(c, ONENAND_REG_SYS_CFG1);
 		}
 
 		reinit_completion(&c->irq_done);
@@ -470,7 +468,6 @@ static int omap2_onenand_probe(struct platform_device *pdev)
 
 	init_completion(&c->irq_done);
 	init_completion(&c->dma_done);
-	c->flags = pdata->flags;
 	c->gpmc_cs = pdata->cs;
 	c->gpio_irq = pdata->gpio_irq;
 	if (pdata->dma_channel < 0) {