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Commit b84ca6e9 authored Dec 05, 2016 by Subhash Jadavani Committed by Martin K. Petersen Dec 08, 2016

scsi: ufs-qcom: fix bug with read/modify write of UFS_CFG1



ufs_qcom_print_hw_debug_reg_all() function is having a bug where it
might incorrectly modify undesired bits in UFS_CFG1 register, this
change fixes it.

Reviewed-by: Venkat Gopalakrishnan <venkatg@codeaurora.org>
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

parent 56d4a186

drivers/scsi/ufs/ufs-qcom.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -1470,7 +1470,8 @@ static void ufs_qcom_print_hw_debug_reg_all(struct ufs_hba *hba,
		reg = ufs_qcom_get_debug_reg_offset(host, UFS_UFS_DBG_RD_PRDT_RAM);
		print_fn(hba, reg, 64, "UFS_UFS_DBG_RD_PRDT_RAM ", priv);

		ufshcd_writel(hba, (reg & ~UFS_BIT(17)), REG_UFS_CFG1);
		/* clear bit 17 - UTP_DBG_RAMS_EN */
		ufshcd_rmwl(hba, UFS_BIT(17), 0, REG_UFS_CFG1);

		reg = ufs_qcom_get_debug_reg_offset(host, UFS_DBG_RD_REG_UAWM);
		print_fn(hba, reg, 4, "UFS_DBG_RD_REG_UAWM ", priv);