| Message ID | 20210709065711.25195-7-chanho61.park@samsung.com (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
| Series | introduce exynosauto v9 ufs driver | expand |
Hi Chanho > -----Original Message----- > From: Chanho Park <chanho61.park@samsung.com> > Sent: 09 July 2021 12:27 > To: Alim Akhtar <alim.akhtar@samsung.com>; James E . J . Bottomley > <jejb@linux.ibm.com>; Martin K . Petersen <martin.petersen@oracle.com> > Cc: Can Guo <cang@codeaurora.org>; Jaegeuk Kim <jaegeuk@kernel.org>; > Kiwoong Kim <kwmad.kim@samsung.com>; Avri Altman > <avri.altman@wdc.com>; Adrian Hunter <adrian.hunter@intel.com>; > Christoph Hellwig <hch@infradead.org>; Bart Van Assche > <bvanassche@acm.org>; jongmin jeong <jjmin.jeong@samsung.com>; > Gyunghoon Kwon <goodjob.kwon@samsung.com>; linux-samsung- > soc@vger.kernel.org; linux-scsi@vger.kernel.org; Chanho Park > <chanho61.park@samsung.com> > Subject: [PATCH 06/15] scsi: ufs: ufs-exynos: add refclkout_stop control > > This patch adds REFCLKOUT_STOP control to CLK_STOP_MASK. It can > en/disable reference clock out control for UFS device. > > Signed-off-by: Chanho Park <chanho61.park@samsung.com> > --- Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com> > drivers/scsi/ufs/ufs-exynos.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/drivers/scsi/ufs/ufs-exynos.c b/drivers/scsi/ufs/ufs-exynos.c > index da02ad3b036c..78cc5bda0a1f 100644 > --- a/drivers/scsi/ufs/ufs-exynos.c > +++ b/drivers/scsi/ufs/ufs-exynos.c > @@ -49,10 +49,11 @@ > #define HCI_ERR_EN_T_LAYER 0x84 > #define HCI_ERR_EN_DME_LAYER 0x88 > #define HCI_CLKSTOP_CTRL 0xB0 > +#define REFCLKOUT_STOP BIT(4) > #define REFCLK_STOP BIT(2) > #define UNIPRO_MCLK_STOP BIT(1) > #define UNIPRO_PCLK_STOP BIT(0) > -#define CLK_STOP_MASK (REFCLK_STOP |\ > +#define CLK_STOP_MASK (REFCLKOUT_STOP | REFCLK_STOP |\ > UNIPRO_MCLK_STOP |\ > UNIPRO_PCLK_STOP) > #define HCI_MISC 0xB4 > -- > 2.32.0
diff --git a/drivers/scsi/ufs/ufs-exynos.c b/drivers/scsi/ufs/ufs-exynos.c index da02ad3b036c..78cc5bda0a1f 100644 --- a/drivers/scsi/ufs/ufs-exynos.c +++ b/drivers/scsi/ufs/ufs-exynos.c @@ -49,10 +49,11 @@ #define HCI_ERR_EN_T_LAYER 0x84 #define HCI_ERR_EN_DME_LAYER 0x88 #define HCI_CLKSTOP_CTRL 0xB0 +#define REFCLKOUT_STOP BIT(4) #define REFCLK_STOP BIT(2) #define UNIPRO_MCLK_STOP BIT(1) #define UNIPRO_PCLK_STOP BIT(0) -#define CLK_STOP_MASK (REFCLK_STOP |\ +#define CLK_STOP_MASK (REFCLKOUT_STOP | REFCLK_STOP |\ UNIPRO_MCLK_STOP |\ UNIPRO_PCLK_STOP) #define HCI_MISC 0xB4
This patch adds REFCLKOUT_STOP control to CLK_STOP_MASK. It can en/disable reference clock out control for UFS device. Signed-off-by: Chanho Park <chanho61.park@samsung.com> --- drivers/scsi/ufs/ufs-exynos.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)