drivers: mtd: spi: Use correct 4 byte mode enablement for ISSI SPI flash devices alongside spi-nor-tiny.c subsystem

[Nathan Barrett-Morrison]

Hi All,

I noticed this was missing from the spi-nor-tiny.c subsystem while trying to 
use an ISSI SPI flash device with the U-Boot SPL.

This patch will allow 4 byte addressing mode to be enabled with ISSI flash 
devices while inside the U-Boot SPL / using spi-nor-tiny.c.

Sincerely,
Nathan

>From 218e00fcaea8c5795e792af09f5d21fc19e3d831 Mon Sep 17 00:00:00 2001
From: Nathan Barrett-Morrison <nathan.morri...@timesys.com>
Date: Wed, 26 Jan 2022 13:43:53 -0500
Subject: [PATCH] drivers: mtd: spi: Use correct 4 byte mode enablement for
 ISSI SPI flash devices alongside spi-nor-tiny.c subsystem

Signed-off-by: Nathan Barrett-Morrison <nathan.morri...@timesys.com>
Cc: Jagan Teki <ja...@amarulasolutions.com>
Cc: Vignesh R <vigne...@ti.com>
CC: Tom Rini <tr...@konsulko.com>
---
 drivers/mtd/spi/spi-nor-tiny.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mtd/spi/spi-nor-tiny.c b/drivers/mtd/spi/spi-nor-tiny.c
index 68152ce3b4..130917aaa8 100644
--- a/drivers/mtd/spi/spi-nor-tiny.c
+++ b/drivers/mtd/spi/spi-nor-tiny.c
@@ -219,6 +219,7 @@ static inline int set_4byte(struct spi_nor *nor, const 
struct flash_info *info,
        case SNOR_MFR_MICRON:
                /* Some Micron need WREN command; all will accept it */
                need_wren = true;
+       case SNOR_MFR_ISSI:
        case SNOR_MFR_MACRONIX:
        case SNOR_MFR_WINBOND:
                if (need_wren)
-- 
2.34.1