diff mbox series

clk: hi3660: clk: Mark clk_gate_ufs_subsys as critical

Message ID 20190319075206.30740-1-leo.yan@linaro.org
State Superseded
Headers show
Series clk: hi3660: clk: Mark clk_gate_ufs_subsys as critical | expand

Commit Message

Leo Yan March 19, 2019, 7:52 a.m. UTC
clk_gate_ufs_subsys is a system bus clock, turning off it will
introduce lockup issue during system suspend flow.  Let's mark
clk_gate_ufs_subsys as critical clock, thus keeps it on during
system suspend and resume.

Fixes: d374e6fd5088 ("clk: hisilicon: Add clock driver for hi3660 SoC")
Cc: stable@vger.kernel.org
Cc: Zhong Kaihua <zhongkaihua@huawei.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Zhangfei Gao <zhangfei.gao@linaro.org>
Suggested-by: Dong Zhang <zhangdong46@hisilicon.com>
Signed-off-by: Leo Yan <leo.yan@linaro.org>

---
 drivers/clk/hisilicon/clk-hi3660.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

-- 
2.17.1

Comments

Leo Yan March 19, 2019, 9:36 a.m. UTC | #1
Hi all,

On Tue, Mar 19, 2019 at 03:52:06PM +0800, Leo Yan wrote:
> clk_gate_ufs_subsys is a system bus clock, turning off it will

> introduce lockup issue during system suspend flow.  Let's mark

> clk_gate_ufs_subsys as critical clock, thus keeps it on during

> system suspend and resume.


Sorry for flaw subject in this patch; please ignore this patch and
review the new resent one.

[...]

Thanks,
Leo Yan
diff mbox series

Patch

diff --git a/drivers/clk/hisilicon/clk-hi3660.c b/drivers/clk/hisilicon/clk-hi3660.c
index f40419959656..32ba80181cc6 100644
--- a/drivers/clk/hisilicon/clk-hi3660.c
+++ b/drivers/clk/hisilicon/clk-hi3660.c
@@ -164,7 +164,7 @@  static const struct hisi_gate_clock hi3660_crgctrl_gate_sep_clks[] = {
 	{ HI3660_CLK_GATE_ISP_SNCLK2, "clk_gate_isp_snclk2",
 	  "clk_isp_snclk_mux", CLK_SET_RATE_PARENT, 0x50, 18, 0, },
 	{ HI3660_CLK_GATE_UFS_SUBSYS, "clk_gate_ufs_subsys", "clk_div_sysbus",
-	  CLK_SET_RATE_PARENT, 0x50, 21, 0, },
+	  CLK_SET_RATE_PARENT|CLK_IS_CRITICAL, 0x50, 21, 0, },
 	{ HI3660_PCLK_GATE_DSI0, "pclk_gate_dsi0", "clk_div_cfgbus",
 	  CLK_SET_RATE_PARENT, 0x50, 28, 0, },
 	{ HI3660_PCLK_GATE_DSI1, "pclk_gate_dsi1", "clk_div_cfgbus",