mtd: spi-nor: Enable QE bit for ISSI flash in case of SFDP

Enable QE bit for ISSI flash chips.

QE enablement logic is similar to what Macronix
has, so reuse the existing code itself.

Signed-off-by: Pragnesh Patel <pragnesh.patel@sifive.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>

diff --git a/drivers/mtd/spi/spi-nor-core.c b/drivers/mtd/spi/spi-nor-core.c
index 1e3f51d..fdcd830 100644 (file)
--- a/drivers/mtd/spi/spi-nor-core.c
+++ b/drivers/mtd/spi/spi-nor-core.c
@@ -1291,7 +1291,7 @@ write_err:
        return ret;
 }
 
-#ifdef CONFIG_SPI_FLASH_MACRONIX
+#if defined(CONFIG_SPI_FLASH_MACRONIX) || defined(CONFIG_SPI_FLASH_ISSI)
 /**
  * macronix_quad_enable() - set QE bit in Status Register.
  * @nor:       pointer to a 'struct spi_nor'
@@ -1969,7 +1969,7 @@ static int spi_nor_parse_bfpt(struct spi_nor *nor,
                params->quad_enable = spansion_no_read_cr_quad_enable;
                break;
 #endif
-#ifdef CONFIG_SPI_FLASH_MACRONIX
+#if defined(CONFIG_SPI_FLASH_MACRONIX) || defined(CONFIG_SPI_FLASH_ISSI)
        case BFPT_DWORD15_QER_SR1_BIT6:
                params->quad_enable = macronix_quad_enable;
                break;
@@ -2206,8 +2206,9 @@ static int spi_nor_init_params(struct spi_nor *nor,
        if (params->hwcaps.mask & (SNOR_HWCAPS_READ_QUAD |
                                   SNOR_HWCAPS_PP_QUAD)) {
                switch (JEDEC_MFR(info)) {
-#ifdef CONFIG_SPI_FLASH_MACRONIX
+#if defined(CONFIG_SPI_FLASH_MACRONIX) || defined(CONFIG_SPI_FLASH_ISSI)
                case SNOR_MFR_MACRONIX:
+               case SNOR_MFR_ISSI:
                        params->quad_enable = macronix_quad_enable;
                        break;
 #endif