Re: [PATCH v3 05/16] mtd: rawnand: qcom: remove dt property nand-ecc-step-size

From: Abhishek Sahu
Date: Mon May 28 2018 - 01:56:12 EST


On 2018-05-26 14:12, Miquel Raynal wrote:
Hi Abhishek,

On Fri, 25 May 2018 17:51:33 +0530, Abhishek Sahu
<absahu@xxxxxxxxxxxxxx> wrote:

QCOM NAND controller supports only one step size (512) so
nand-ecc-step-size DT property is redundant. This property
can be removed and ecc step size can be assigned with 512 value.

Signed-off-by: Abhishek Sahu <absahu@xxxxxxxxxxxxxx>
---
* Changes from v2:

NEW CHANGE

1. Removed the custom logic and used the helper fuction.
drivers/mtd/nand/raw/qcom_nandc.c | 11 ++---------
1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/drivers/mtd/nand/raw/qcom_nandc.c b/drivers/mtd/nand/raw/qcom_nandc.c
index b554fb6..b538390 100644
--- a/drivers/mtd/nand/raw/qcom_nandc.c
+++ b/drivers/mtd/nand/raw/qcom_nandc.c
@@ -2325,15 +2325,8 @@ static int qcom_nand_host_setup(struct qcom_nand_host *host)
bool wide_bus;
int ecc_mode = 1;

- /*
- * the controller requires each step consists of 512 bytes of data.
- * bail out if DT has populated a wrong step size.
- */
- if (ecc->size != NANDC_STEP_SIZE) {
- dev_err(nandc->dev, "invalid ecc size\n");
- return -EINVAL;
- }
-
+ /* controller only supports 512 bytes of data in each step */

"512 bytes data steps"


Thanks Miquel.
Will update that.

Regards,
Abhishek

+ ecc->size = NANDC_STEP_SIZE;
wide_bus = chip->options & NAND_BUSWIDTH_16 ? true : false;

if (ecc->strength >= 8) {

Once corrected:

Acked-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>