+++ /dev/null
-From 9732c4f2d93a4a39ffc903c88ab7d531a8bb2e74 Mon Sep 17 00:00:00 2001
-From: Christian Marangi <ansuelsmth@gmail.com>
-Date: Wed, 20 Mar 2024 00:47:58 +0100
-Subject: [PATCH] mtd: rawnand: qcom: Fix broken misc_cmd_type in exec_op
-
-misc_cmd_type in exec_op have multiple problems. With commit a82990c8a409
-("mtd: rawnand: qcom: Add read/read_start ops in exec_op path") it was
-reworked and generalized but actually dropped the handling of the
-RESET_DEVICE command.
-
-Also additional logic was added without clear explaination causing the
-erase command to be broken on testing it on a ipq806x nandc.
-
-Add some additional logic to restore RESET_DEVICE command handling and
-fix erase command.
-
-Fixes: a82990c8a409 ("mtd: rawnand: qcom: Add read/read_start ops in exec_op path")
-Cc: stable@vger.kernel.org
-Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
----
- drivers/mtd/nand/raw/qcom_nandc.c | 7 +++----
- 1 file changed, 3 insertions(+), 4 deletions(-)
-
---- a/drivers/mtd/nand/raw/qcom_nandc.c
-+++ b/drivers/mtd/nand/raw/qcom_nandc.c
-@@ -2815,7 +2815,7 @@ static int qcom_misc_cmd_type_exec(struc
- host->cfg0_raw & ~(7 << CW_PER_PAGE));
- nandc_set_reg(chip, NAND_DEV0_CFG1, host->cfg1_raw);
- instrs = 3;
-- } else {
-+ } else if (q_op.cmd_reg != OP_RESET_DEVICE) {
- return 0;
- }
-
-@@ -2830,9 +2830,8 @@ static int qcom_misc_cmd_type_exec(struc
- nandc_set_reg(chip, NAND_EXEC_CMD, 1);
-
- write_reg_dma(nandc, NAND_FLASH_CMD, instrs, NAND_BAM_NEXT_SGL);
-- (q_op.cmd_reg == OP_BLOCK_ERASE) ? write_reg_dma(nandc, NAND_DEV0_CFG0,
-- 2, NAND_BAM_NEXT_SGL) : read_reg_dma(nandc,
-- NAND_FLASH_STATUS, 1, NAND_BAM_NEXT_SGL);
-+ if (q_op.cmd_reg == OP_BLOCK_ERASE)
-+ write_reg_dma(nandc, NAND_DEV0_CFG0, 2, NAND_BAM_NEXT_SGL);
-
- write_reg_dma(nandc, NAND_EXEC_CMD, 1, NAND_BAM_NEXT_SGL);
- read_reg_dma(nandc, NAND_FLASH_STATUS, 1, NAND_BAM_NEXT_SGL);