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Commit 2a4b1823 authored by Ziqi Chen's avatar Ziqi Chen
Browse files

scsi: ufs: reomove Rst_N pulling up action in ufshcd_resume() 



There are two times H/W reset during UFS power on. It will impact
NAND lifetime. We just need to keep one and remove the other one.

Change-Id: Ie0ddbc458d36d0b7fb7e3786775432efea850e10
Signed-off-by: default avatarZiqi Chen <ziqichen@codeaurora.org>
parent 33a5e163

drivers/scsi/ufs/ufshcd.c

+1 −11
Original line number Diff line number Diff line
@@ -10540,13 +10540,6 @@ static int ufshcd_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op) 
	/* enable the host irq as host controller would be active soon */

	ufshcd_enable_irq(hba);



	/* Pull up RST_n before device reset */

	if (ufshcd_is_link_off(hba)) {

		ret = ufshcd_deassert_device_reset(hba);

		if (ret)

			goto disable_irq_and_vops_clks;

	}



	/*

	 * Call vendor specific resume callback. As these callbacks may access

	 * vendor specific host controller register space call them when the
@@ -10554,7 +10547,7 @@ static int ufshcd_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op) 
	 */

	ret = ufshcd_vops_resume(hba, pm_op);

	if (ret)

		goto assert_device_reset;

		goto disable_irq_and_vops_clks;



	if (ufshcd_is_link_hibern8(hba)) {

		ret = ufshcd_uic_hibern8_exit(hba);
@@ -10645,9 +10638,6 @@ static int ufshcd_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op) 
		hba->hibern8_on_idle.state = HIBERN8_ENTERED;

vendor_suspend:

	ufshcd_vops_suspend(hba, pm_op);

assert_device_reset:

	if (ufshcd_is_link_off(hba))

		ufshcd_assert_device_reset(hba);

disable_irq_and_vops_clks:

	ufshcd_disable_irq(hba);

	if (hba->clk_scaling.is_allowed)