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50 lines
1.5 KiB
Diff
50 lines
1.5 KiB
Diff
From 6f1195d231ab576809fe2f4cff44a6e48cff2457 Mon Sep 17 00:00:00 2001
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From: Yutang Jiang <yutang.jiang@nxp.com>
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Date: Fri, 2 Sep 2016 22:00:16 +0800
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Subject: [PATCH 113/113] mtd: spi-nor: fsl-quad: move mtd_device_register to
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the last of probe
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After call mtd_device_register, the mtd devices should be workable immediately.
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If before finish all of init work call the mtd_device_register, it will not
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respond work request timely.
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For example, openwrt/lede have a AUTO split special flash partitions mechanism
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while mtd driver register. So, before call mtd_device_register, must let all of
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init work ready.
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Signed-off-by: Yutang Jiang <yutang.jiang@nxp.com>
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---
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drivers/mtd/spi-nor/fsl-quadspi.c | 14 ++++++++++----
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1 file changed, 10 insertions(+), 4 deletions(-)
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--- a/drivers/mtd/spi-nor/fsl-quadspi.c
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+++ b/drivers/mtd/spi-nor/fsl-quadspi.c
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@@ -1280,10 +1280,6 @@ static int fsl_qspi_probe(struct platfor
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if (ret)
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goto mutex_failed;
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- ret = mtd_device_register(mtd, NULL, 0);
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- if (ret)
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- goto mutex_failed;
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-
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/* Set the correct NOR size now. */
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if (q->nor_size == 0) {
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q->nor_size = mtd->size;
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@@ -1313,6 +1309,16 @@ static int fsl_qspi_probe(struct platfor
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goto last_init_failed;
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fsl_qspi_clk_disable_unprep(q);
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+
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+ for (i = 0; i < q->nor_num; i++) {
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+ /* skip the holes */
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+ if (!q->has_second_chip)
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+ i *= 2;
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+
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+ ret = mtd_device_register(&q->nor[i].mtd, NULL, 0);
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+ if (ret)
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+ goto last_init_failed;
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+ }
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return 0;
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last_init_failed:
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