target/linux/qualcommax/patches-6.1/0908-remoteproc-qcom_q6v5_wcss-add-optional-qdss_at-clock.patch

   1 From 87dbcc69a7e3fe6ccddf4fe9bdbf51330f5e4a77 Mon Sep 17 00:00:00 2001
   2 From: Mantas Pucka <mantas@8devices.com>
   3 Date: Tue, 23 Jan 2024 11:04:04 +0200
   4 Subject: [PATCH] remoteproc: qcom_q6v5_wcss: add optional qdss_at clock
   5
   6 IPQ6018 needs QDSS_AT clock enabled when loading wifi. Optionally enable it
   7 when provided by DT.
   8
   9 Signed-off-by: Mantas Pucka <mantas@8devices.com>
  10 ---
  11  drivers/remoteproc/qcom_q6v5_wcss.c | 24 ++++++++++++++++++++++++
  12  1 file changed, 24 insertions(+)
  13
  14 --- a/drivers/remoteproc/qcom_q6v5_wcss.c
  15 +++ b/drivers/remoteproc/qcom_q6v5_wcss.c
  16 @@ -120,6 +120,7 @@ struct q6v5_wcss {
  17         struct clk *qdsp6ss_core_gfmux;
  18         struct clk *lcc_bcr_sleep;
  19         struct clk *prng_clk;
  20 +       struct clk *qdss_clk;
  21         struct regulator *cx_supply;
  22         struct qcom_sysmon *sysmon;
  23
  24 @@ -259,6 +260,9 @@ static int q6v5_wcss_start(struct rproc
  25                 return ret;
  26         }
  27
  28 +       if (wcss->qdss_clk)
  29 +               clk_prepare_enable(wcss->qdss_clk);
  30 +
  31         qcom_q6v5_prepare(&wcss->q6v5);
  32
  33         if (wcss->need_mem_protection) {
  34 @@ -772,6 +776,8 @@ static int q6v5_wcss_stop(struct rproc *
  35         }
  36
  37  pas_done:
  38 +       if (wcss->qdss_clk)
  39 +               clk_disable_unprepare(wcss->qdss_clk);
  40         clk_disable_unprepare(wcss->prng_clk);
  41         qcom_q6v5_unprepare(&wcss->q6v5);
  42
  43 @@ -981,6 +987,12 @@ static int ipq_init_clock(struct q6v5_wc
  44                         dev_err(wcss->dev, "Failed to get prng clock\n");
  45                 return ret;
  46         }
  47 +
  48 +       wcss->qdss_clk = devm_clk_get(wcss->dev, "qdss");
  49 +       if (IS_ERR(wcss->qdss_clk)) {
  50 +               wcss->qdss_clk = NULL;
  51 +       }
  52 +
  53         return 0;
  54  }
  55