Re: [PATCH 2/6] clk: qcom: gcc-ipq9574: Mark nssnoc clocks as critical

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On 7/11/2023 3:55 PM, Dmitry Baryshkov wrote:
On 11/07/2023 12:35, Devi Priya wrote:
Mark nssnoc clocks as critical as they are to be turned on to access
nss port tx/rx clocks.

Can you please clarify, if these are turned off, one can not access nsscc clocks? Then the nsscc should be the consumer of these clocks (instead of declaring them as critical). May be using pm_clk for nsscc will work. If not, you'll have to do that manually from runtime_suspend/runtime_resume callbacks.

Sure, will use pm_clk for nsscc in V2

Thanks,
Devi Priya


Signed-off-by: Devi Priya <quic_devipriy@xxxxxxxxxxx>
---
  drivers/clk/qcom/gcc-ipq9574.c | 6 +++---
  1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/clk/qcom/gcc-ipq9574.c b/drivers/clk/qcom/gcc-ipq9574.c
index 6914f962c893..b68addc6f687 100644
--- a/drivers/clk/qcom/gcc-ipq9574.c
+++ b/drivers/clk/qcom/gcc-ipq9574.c
@@ -2166,7 +2166,7 @@ static struct clk_branch gcc_nssnoc_nsscc_clk = {
                  &pcnoc_bfdcd_clk_src.clkr.hw
              },
              .num_parents = 1,
-            .flags = CLK_SET_RATE_PARENT,
+            .flags = CLK_SET_RATE_PARENT | CLK_IS_CRITICAL,
              .ops = &clk_branch2_ops,
          },
      },
@@ -2565,7 +2565,7 @@ static struct clk_branch gcc_nssnoc_snoc_clk = {
                  &system_noc_bfdcd_clk_src.clkr.hw
              },
              .num_parents = 1,
-            .flags = CLK_SET_RATE_PARENT,
+            .flags = CLK_SET_RATE_PARENT | CLK_IS_CRITICAL,
              .ops = &clk_branch2_ops,
          },
      },
@@ -2582,7 +2582,7 @@ static struct clk_branch gcc_nssnoc_snoc_1_clk = {
                  &system_noc_bfdcd_clk_src.clkr.hw
              },
              .num_parents = 1,
-            .flags = CLK_SET_RATE_PARENT,
+            .flags = CLK_SET_RATE_PARENT | CLK_IS_CRITICAL,
              .ops = &clk_branch2_ops,
          },
      },




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