Commit 7b59800f authored May 21, 2020 by Nitin Rawat Committed by Gerrit - the friendly Code Review server May 23, 2020

scsi: ufs: Enable write booster feature support on UFS 2.2



Writebooster is now officially supported by UFS 2.2 specs
and since this is accepted by JEDEC , new devices supporting
UFS 2.2 specs is going to come in market.
Enabling writebooster feature for device supporting
UFS 2.2 specs.

Change-Id: Ice1142ba11dc9003b70a61c517c80da31dab939b
Signed-off-by: Nitin Rawat <nitirawa@codeaurora.org>

parent 55100ee0

drivers/scsi/ufs/ufshcd.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -8509,8 +8509,9 @@ static int ufs_get_device_desc(struct ufs_hba *hba,
		model_index = desc_buf[DEVICE_DESC_PARAM_PRDCT_NAME];


		/* Enable WB only for UFS-3.1 OR if desc len >= 0x59 */
		/* Enable WB only for UFS-3.1 or UFS-2.2 OR if desc len >= 0x59 */
		if ((dev_desc->wspecversion >= 0x310) \|\|
		(dev_desc->wspecversion == 0x220) \|\|
		(dev_desc->wmanufacturerid == UFS_VENDOR_TOSHIBA &&
		dev_desc->wspecversion >= 0x300 &&
		hba->desc_size.dev_desc >= 0x59)) {