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X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Stanley Chu , andy.teng@mediatek.com, chun-hung.wu@mediatek.com, kuohong.wang@mediatek.com, linux-kernel@vger.kernel.org, cang@codeaurora.org, linux-mediatek@lists.infradead.org, peter.wang@mediatek.com, matthias.bgg@gmail.com, beanhuo@micron.com, linux-arm-kernel@lists.infradead.org, asutoshd@codeaurora.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Reduce the waiting period between each HCE (Host Controller Enable) polling from 5 ms to 1 ms. In the same time, increase the maximum polling times to make "total polling time" unchanged approximately. This change could make HCE initializatoin faster to improve latency of ufshcd initialization, error recovery, and resume behaviors. Signed-off-by: Stanley Chu Reviewed-by: Avri Altman Reviewed-by: Can Guo --- drivers/scsi/ufs/ufshcd.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index c5ee77a5bfc7..8edb91b19c33 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -4304,7 +4304,7 @@ int ufshcd_hba_enable(struct ufs_hba *hba) ufshcd_delay_us(hba->hba_enable_delay_us, 100); /* wait for the host controller to complete initialization */ - retry = 10; + retry = 50; while (ufshcd_is_hba_active(hba)) { if (retry) { retry--; @@ -4313,7 +4313,7 @@ int ufshcd_hba_enable(struct ufs_hba *hba) "Controller enable failed\n"); return -EIO; } - usleep_range(5000, 5100); + usleep_range(1000, 1100); } /* enable UIC related interrupts */ -- 2.18.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel