[MTD] NOR: leave Intel chips in read-array mode on suspend
During some testing with several samsung s3c24xx based devices it was discovered that often the cfi_cmdset_0001.c would not leave the chip in read-array mode on suspend. this is an issue if the same flash chip is used for the bootloader that needs to be read on resume. Signed-off-by: David Anders <danders@amltd.com> Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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@ -2224,6 +2224,8 @@ static int cfi_intelext_suspend(struct mtd_info *mtd)
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case FL_CFI_QUERY:
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case FL_CFI_QUERY:
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case FL_JEDEC_QUERY:
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case FL_JEDEC_QUERY:
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if (chip->oldstate == FL_READY) {
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if (chip->oldstate == FL_READY) {
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/* place the chip in a known state before suspend */
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map_write(map, CMD(0xFF), cfi->chips[i].start);
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chip->oldstate = chip->state;
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chip->oldstate = chip->state;
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chip->state = FL_PM_SUSPENDED;
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chip->state = FL_PM_SUSPENDED;
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/* No need to wake_up() on this state change -
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/* No need to wake_up() on this state change -
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