Hi Colin,
Colin King <colin.king@xxxxxxxxxxxxx> wrote on Tue, 16 Jun 2020
12:51:25 +0100:
> From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
>
> Currently the expression (nand_ctrl | BAM_MODE_EN) is always true no
> matter the value of nand_ctrl because the incorrect masking operator
> is being used. Fix this by using bit-wise & instead of |.
I saw it when reviewing and marked it to solve before applying but it
looks like I forgot to do so. If you don't mind I'll merge this with
the original commit.
>
> Addresses-Coverity: ("Wrong operator used")
> Fixes: dd0c1fc8de12 ("mtd: rawnand: qcom: set BAM mode only if not set already")
> Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
> ---
> drivers/mtd/nand/raw/qcom_nandc.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/mtd/nand/raw/qcom_nandc.c b/drivers/mtd/nand/raw/qcom_nandc.c
> index a3ef4288be27..37d95532ba7e 100644
> --- a/drivers/mtd/nand/raw/qcom_nandc.c
> +++ b/drivers/mtd/nand/raw/qcom_nandc.c
> @@ -2790,7 +2790,7 @@ static int qcom_nandc_setup(struct qcom_nand_controller *nandc)
> * only if it is not in BAM mode. In most cases BAM
> * mode will be enabled in bootloader
> */
> - if (!(nand_ctrl | BAM_MODE_EN))
> + if (!(nand_ctrl & BAM_MODE_EN))
> nandc_write(nandc, NAND_CTRL, nand_ctrl | BAM_MODE_EN);
> } else {
> nandc_write(nandc, NAND_FLASH_CHIP_SELECT, DM_EN);
Thanks,
Miquèl
