From: Stephen Boyd <sboyd@kernel.org>
To: Douglas Anderson <dianders@chromium.org>
Cc: Taniya Das <tdas@codeaurora.org>,
linux-soc@vger.kernel.org, David Brown <david.brown@linaro.org>,
Rajendra Nayak <rnayak@codeaurora.org>,
Douglas Anderson <dianders@chromium.org>,
Andy Gross <agross@kernel.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Michael Turquette <mturquette@baylibre.com>,
linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 3/3] clk: qcom: lpasscc-sc7180: Re-configure the PLL in case lost
Date: Wed, 14 Oct 2020 16:39:36 -0700 [thread overview]
Message-ID: <160271877655.884498.7099344361539095621@swboyd.mtv.corp.google.com> (raw)
In-Reply-To: <20201014140507.v3.3.Id0cc5d859e2422082a29a7909658932c857f5a81@changeid>
Quoting Douglas Anderson (2020-10-14 14:05:23)
> diff --git a/drivers/clk/qcom/lpasscorecc-sc7180.c b/drivers/clk/qcom/lpasscorecc-sc7180.c
> index 48d370e2108e..e12d4c2b1b70 100644
> --- a/drivers/clk/qcom/lpasscorecc-sc7180.c
> +++ b/drivers/clk/qcom/lpasscorecc-sc7180.c
> @@ -388,6 +388,25 @@ static int lpass_create_pm_clks(struct platform_device *pdev)
> return ret;
> }
>
> +static int lpass_core_cc_pm_clk_resume(struct device *dev)
> +{
> + struct regmap *regmap = dev_get_regmap(dev, "lpass_core_cc");
Please make "lpass_core_cc" a static const pointer in this driver so
that it can be used here and when the regmap is made so that we're
certain they match.
> + unsigned int l_val;
> + int ret;
> +
> + ret = pm_clk_resume(dev);
> + if (ret)
> + return ret;
> +
> + /* If PLL_L_VAL was cleared then we should re-init the whole PLL */
> + regmap_read(regmap, 0x1004, &l_val);
> + if (!l_val)
> + clk_fabia_pll_configure(&lpass_lpaaudio_dig_pll, regmap,
> + &lpass_lpaaudio_dig_pll_config);
> +
> + return 0;
> +}
> +
> static int lpass_core_cc_sc7180_probe(struct platform_device *pdev)
> {
> const struct qcom_cc_desc *desc;
next prev parent reply other threads:[~2020-10-14 23:39 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-14 21:05 [PATCH v3 1/3] clk: qcom: lpasscc-sc7810: Use devm in probe Douglas Anderson
2020-10-14 21:05 ` [PATCH v3 2/3] clk: qcom: lpass-sc7180: Disentangle the two clock devices Douglas Anderson
2020-10-14 22:10 ` Stephen Boyd
2020-10-14 22:28 ` Doug Anderson
2020-10-14 23:00 ` Stephen Boyd
2020-10-14 23:07 ` Doug Anderson
2020-10-14 23:33 ` Stephen Boyd
2020-10-15 0:10 ` Doug Anderson
2020-10-14 21:05 ` [PATCH v3 3/3] clk: qcom: lpasscc-sc7180: Re-configure the PLL in case lost Douglas Anderson
2020-10-14 23:39 ` Stephen Boyd [this message]
2020-10-15 0:10 ` Doug Anderson
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