From: Viresh Kumar <viresh.kumar@linaro.org>
To: Rex-BC Chen <rex-bc.chen@mediatek.com>
Cc: rafael@kernel.org, robh+dt@kernel.org, krzk+dt@kernel.org,
matthias.bgg@gmail.com, jia-wei.chang@mediatek.com,
roger.lu@mediatek.com, hsinyi@google.com, khilman@baylibre.com,
angelogioacchino.delregno@collabora.com,
linux-pm@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-mediatek@lists.infradead.org,
Project_Global_Chrome_Upstream_Group@mediatek.com
Subject: Re: [PATCH V4 07/14] cpufreq: mediatek: Add .get function
Date: Mon, 25 Apr 2022 11:05:48 +0530 [thread overview]
Message-ID: <20220425053548.72w2jh2g6lpzgz6g@vireshk-i7> (raw)
In-Reply-To: <20220422075239.16437-8-rex-bc.chen@mediatek.com>
On 22-04-22, 15:52, Rex-BC Chen wrote:
> From: Jia-Wei Chang <jia-wei.chang@mediatek.com>
>
> We want to get opp frequency via opp table. Therefore, we add the function
> "mtk_cpufreq_get()" to do this.
>
> Signed-off-by: Jia-Wei Chang <jia-wei.chang@mediatek.com>
> Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
> ---
> drivers/cpufreq/mediatek-cpufreq.c | 11 ++++++++++-
> 1 file changed, 10 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/cpufreq/mediatek-cpufreq.c b/drivers/cpufreq/mediatek-cpufreq.c
> index e070a2619bcb..0b2ca0c8eddc 100644
> --- a/drivers/cpufreq/mediatek-cpufreq.c
> +++ b/drivers/cpufreq/mediatek-cpufreq.c
> @@ -71,6 +71,15 @@ static struct mtk_cpu_dvfs_info *mtk_cpu_dvfs_info_lookup(int cpu)
> return NULL;
> }
>
> +static unsigned int mtk_cpufreq_get(unsigned int cpu)
> +{
> + struct mtk_cpu_dvfs_info *info;
> +
> + info = mtk_cpu_dvfs_info_lookup(cpu);
> +
> + return !info ? 0 : (info->opp_freq / 1000);
> +}
> +
> static int mtk_cpufreq_voltage_tracking(struct mtk_cpu_dvfs_info *info,
> int new_vproc)
> {
> @@ -588,7 +597,7 @@ static struct cpufreq_driver mtk_cpufreq_driver = {
> CPUFREQ_IS_COOLING_DEV,
> .verify = cpufreq_generic_frequency_table_verify,
> .target_index = mtk_cpufreq_set_target,
> - .get = cpufreq_generic_get,
> + .get = mtk_cpufreq_get,
The .get callback should read the real frequency from hardware instead of
fetching a cached freq value.
> .init = mtk_cpufreq_init,
> .exit = mtk_cpufreq_exit,
> .register_em = cpufreq_register_em_with_opp,
> --
> 2.18.0
--
viresh
next prev parent reply other threads:[~2022-04-25 5:36 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-22 7:52 [PATCH V4 00/14] cpufreq: mediatek: Cleanup and support MT8183 and MT8186 Rex-BC Chen
2022-04-22 7:52 ` [PATCH V4 01/14] dt-bindings: cpufreq: mediatek: Add MediaTek CCI property Rex-BC Chen
2022-04-22 8:21 ` AngeloGioacchino Del Regno
2022-04-22 17:26 ` Krzysztof Kozlowski
2022-04-22 17:34 ` Krzysztof Kozlowski
2022-04-25 6:19 ` Rex-BC Chen
2022-04-25 8:55 ` Krzysztof Kozlowski
2022-04-25 10:20 ` Rex-BC Chen
2022-04-25 10:52 ` Krzysztof Kozlowski
2022-04-26 8:26 ` Rex-BC Chen
2022-04-22 7:52 ` [PATCH V4 02/14] cpufreq: mediatek: Use device print to show logs Rex-BC Chen
2022-04-25 5:10 ` Viresh Kumar
2022-04-22 7:52 ` [PATCH V4 03/14] cpufreq: mediatek: Replace old_* with pre_* Rex-BC Chen
2022-04-25 5:11 ` Viresh Kumar
2022-04-22 7:52 ` [PATCH V4 04/14] cpufreq: mediatek: Record previous target vproc value Rex-BC Chen
2022-04-22 8:21 ` AngeloGioacchino Del Regno
2022-04-25 5:12 ` Viresh Kumar
2022-04-22 7:52 ` [PATCH V4 06/14] cpufreq: mediatek: Move voltage limits to platform data Rex-BC Chen
2022-04-22 7:52 ` [PATCH V4 07/14] cpufreq: mediatek: Add .get function Rex-BC Chen
2022-04-22 8:21 ` AngeloGioacchino Del Regno
2022-04-25 5:35 ` Viresh Kumar [this message]
2022-04-25 9:34 ` Rex-BC Chen
2022-04-25 10:00 ` Viresh Kumar
2022-04-26 11:13 ` Rex-BC Chen
2022-04-27 3:11 ` Viresh Kumar
2022-04-28 11:16 ` Rex-BC Chen
2022-04-28 11:48 ` Viresh Kumar
2022-05-03 11:33 ` Rex-BC Chen
2022-05-04 8:22 ` Viresh Kumar
2022-05-04 11:57 ` Rex-BC Chen
2022-05-04 11:58 ` Viresh Kumar
2022-05-04 12:03 ` Rex-BC Chen
2022-04-22 7:52 ` [PATCH V4 08/14] cpufreq: mediatek: Make sram regulator optional Rex-BC Chen
2022-04-25 5:36 ` Viresh Kumar
2022-04-22 7:52 ` [PATCH V4 09/14] cpufreq: mediatek: Refine mtk_cpufreq_voltage_tracking() Rex-BC Chen
2022-04-22 8:20 ` AngeloGioacchino Del Regno
2022-04-22 7:52 ` [PATCH V4 10/14] cpufreq: mediatek: Link CCI device to CPU Rex-BC Chen
2022-04-22 7:52 ` [PATCH V4 11/14] cpufreq: mediatek: Add support for MT8186 Rex-BC Chen
2022-04-22 7:52 ` [PATCH V4 12/14] arm64: dts: mediatek: Add opp table and clock property for MT8183 cpufreq Rex-BC Chen
2022-04-22 8:20 ` AngeloGioacchino Del Regno
2022-04-22 7:52 ` [PATCH V4 13/14] arm64: dts: mediatek: Add MediaTek CCI node for MT8183 Rex-BC Chen
2022-04-22 7:52 ` [PATCH V4 14/14] arm64: dts: mediatek: Add mediatek,cci property for MT8183 cpufreq Rex-BC Chen
2022-04-22 17:23 ` [PATCH V4 00/14] cpufreq: mediatek: Cleanup and support MT8183 and MT8186 Krzysztof Kozlowski
2022-04-25 6:20 ` Rex-BC Chen
[not found] ` <20220422075239.16437-6-rex-bc.chen@mediatek.com>
2022-04-25 5:20 ` [PATCH V4 05/14] cpufreq: mediatek: Add opp notification support Viresh Kumar
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