Commit 8588c6b0 authored Dec 30, 2019 by Stanley Chu Committed by Martin K. Petersen Jan 02, 2020

scsi: ufs-mediatek: configure customized auto-hibern8 timer

Configure customized auto-hibern8 timer in MediaTek Chipsets.

Cc: Alim Akhtar <alim.akhtar@samsung.com>
Cc: Avri Altman <avri.altman@wdc.com>
Cc: Bart Van Assche <bvanassche@acm.org>
Cc: Bean Huo <beanhuo@micron.com>
Cc: Can Guo <cang@codeaurora.org>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Link: https://lore.kernel.org/r/1577683950-1702-6-git-send-email-stanley.chu@mediatek.com

Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

parent ba7af5ec

drivers/scsi/ufs/ufs-mediatek.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -7,6 +7,7 @@
		*/

		#include <linux/arm-smccc.h>
		#include <linux/bitfield.h>
		#include <linux/of.h>
		#include <linux/of_address.h>
		#include <linux/phy/phy.h>
		@@ -305,6 +306,13 @@ static int ufs_mtk_post_link(struct ufs_hba *hba)
		/* enable unipro clock gating feature */
		ufs_mtk_cfg_unipro_cg(hba, true);

		/* configure auto-hibern8 timer to 10ms */
		if (ufshcd_is_auto_hibern8_supported(hba)) {
		ufshcd_auto_hibern8_update(hba,
		FIELD_PREP(UFSHCI_AHIBERN8_TIMER_MASK, 10) \|
		FIELD_PREP(UFSHCI_AHIBERN8_SCALE_MASK, 3));
		}

		return 0;
		}

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