drivers: mtd: spi: Allow Quad I/O 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 Quad (4x) I/O mode to be enabled with ISSI flash devices while inside the U-Boot SPL / using spi-nor-tiny.c.

Sincerely,
Nathan

>From 1a7fd52f21d3d3ad4b2ff736a9ea3c1affb9c007 Mon Sep 17 00:00:00 2001
From: Nathan Barrett-Morrison <nathan.morrison at timesys.com>
Date: Wed, 26 Jan 2022 13:44:39 -0500
Subject: [PATCH] drivers: mtd: spi: Allow Quad I/O enablement for ISSI SPI
 flash devices alongside spi-nor-tiny.c subsystem

Signed-off-by: Nathan Barrett-Morrison <nathan.morrison at timesys.com>
Cc: Jagan Teki <jagan at amarulasolutions.com>
Cc: Vignesh R <vigneshr at ti.com>
CC: Tom Rini <trini at 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 130917aaa8..4957448d11 100644
--- a/drivers/mtd/spi/spi-nor-tiny.c
+++ b/drivers/mtd/spi/spi-nor-tiny.c
@@ -664,6 +664,7 @@ static int spi_nor_setup(struct spi_nor *nor, const struct flash_info *info,
 		switch (JEDEC_MFR(info)) {
 #ifdef CONFIG_SPI_FLASH_MACRONIX
 		case SNOR_MFR_MACRONIX:
+		case SNOR_MFR_ISSI:
 			err = macronix_quad_enable(nor);
 			break;
 #endif
-- 
2.34.1