Re: [PATCH V2] clk: qcom: ipq5332: mark GPLL4 as critical temporarily

From: Kathiravan T
Date: Tue Feb 14 2023 - 11:20:11 EST



On 2/11/2023 3:44 AM, Stephen Boyd wrote:
Quoting Kathiravan T (2023-02-05 23:31:01)
diff --git a/drivers/clk/qcom/gcc-ipq5332.c b/drivers/clk/qcom/gcc-ipq5332.c
index c8a5fa1bafca..2e043d2d0598 100644
--- a/drivers/clk/qcom/gcc-ipq5332.c
+++ b/drivers/clk/qcom/gcc-ipq5332.c
@@ -127,6 +127,16 @@ static struct clk_alpha_pll gpll4_main = {
.parent_data = &gcc_parent_data_xo,
.num_parents = 1,
.ops = &clk_alpha_pll_stromer_ops,
+ /*
+ * There are no consumers for this GPLL in kernel yet,
+ * (will be added soon), so the clock framework
+ * disables this source. But some of the clocks
+ * initialized by boot loaders uses this source. So we
+ * need to keep this clock ON. Add the CRITICAL flag
+ * so the clock will not be disabled. Once the consumer
+ * in kernel is added, we can get rid off this flag.
s/off/of/

Does CLK_IGNORE_UNUSED work the same? It doesn't sound like a critical
clk from the description of the comment.


Sorry, somehow I missed this response. Will update to CLK_IGNORE_UNUSED in V3.


+ */
+ .flags = CLK_IS_CRITICAL,
},
},