diff mbox series

[v4,5/6] ufs: host: ufs-exynos: add mphy apb clock mask

Message ID 20220610104119.66401-6-alim.akhtar@samsung.com (mailing list archive)
State New, archived
Headers show
Series Add support for UFS controller found in FSD SoC | expand

Commit Message

Alim Akhtar June 10, 2022, 10:41 a.m. UTC 
Bit[3] of HCI_CLKSTOP_CTRL register is for enabling/disabling MPHY APB
clock. Lets add it to CLK_STOP_MASK, so that the same can be controlled
during clock masking/unmasking.

Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
Reviewed-by: Chanho Park <chanho61.park@samsung.com>
Tested-by: Chanho Park <chanho61.park@samsung.com>
---
 drivers/ufs/host/ufs-exynos.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Comments

Krzysztof Kozlowski June 13, 2022, 9:47 a.m. UTC | #1 
On 10/06/2022 12:41, Alim Akhtar wrote:
> Bit[3] of HCI_CLKSTOP_CTRL register is for enabling/disabling MPHY APB
> clock. Lets add it to CLK_STOP_MASK, so that the same can be controlled
> during clock masking/unmasking.
> 
> Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
> Reviewed-by: Chanho Park <chanho61.park@samsung.com>
> Tested-by: Chanho Park <chanho61.park@samsung.com>


Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>


Best regards,
Krzysztof
diff mbox series

Patch

diff --git a/drivers/ufs/host/ufs-exynos.c b/drivers/ufs/host/ufs-exynos.c
index a81d8cbd542f..cc128aff8871 100644
--- a/drivers/ufs/host/ufs-exynos.c
+++ b/drivers/ufs/host/ufs-exynos.c
@@ -52,11 +52,12 @@ 
 #define HCI_ERR_EN_DME_LAYER	0x88
 #define HCI_CLKSTOP_CTRL	0xB0
 #define REFCLKOUT_STOP		BIT(4)
+#define MPHY_APBCLK_STOP	BIT(3)
 #define REFCLK_STOP		BIT(2)
 #define UNIPRO_MCLK_STOP	BIT(1)
 #define UNIPRO_PCLK_STOP	BIT(0)
 #define CLK_STOP_MASK		(REFCLKOUT_STOP | REFCLK_STOP |\
-				 UNIPRO_MCLK_STOP |\
+				 UNIPRO_MCLK_STOP | MPHY_APBCLK_STOP|\
 				 UNIPRO_PCLK_STOP)
 #define HCI_MISC		0xB4
 #define REFCLK_CTRL_EN		BIT(7)