Commit f571b377 authored May 21, 2019 by Stanley Chu Committed by Martin K. Petersen Jun 18, 2019

scsi: ufs: Do not overwrite Auto-Hibernate timer



Some vendor-specific initialization flow may set its own auto-hibernate
timer. In this case, do not overwrite timer value as "default value" in
ufshcd_init().

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

parent ee5f1042

drivers/scsi/ufs/ufshcd.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -8312,7 +8312,7 @@ int ufshcd_init(struct ufs_hba hba, void __iomem mmio_base, unsigned int irq)
		UIC_LINK_HIBERN8_STATE);

		/* Set the default auto-hiberate idle timer value to 150 ms */
		if (ufshcd_is_auto_hibern8_supported(hba)) {
		if (ufshcd_is_auto_hibern8_supported(hba) && !hba->ahit) {
		hba->ahit = FIELD_PREP(UFSHCI_AHIBERN8_TIMER_MASK, 150) \|
		FIELD_PREP(UFSHCI_AHIBERN8_SCALE_MASK, 3);
		}