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[130.180.211.218]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4406d5acec8sm13487175e9.16.2025.04.18.01.37.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 18 Apr 2025 01:37:40 -0700 (PDT) Date: Fri, 18 Apr 2025 10:37:37 +0200 From: Daniel Lezcano To: iuncuim Cc: Vasily Khoruzhick , Yangtao Li , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Andre Przywara , "Rafael J . Wysocki" , Zhang Rui , Lukasz Luba , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Philipp Zabel , linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org, Piotr Oniszczuk Subject: Re: [PATCH 1/6] thermal/drivers/sun8i: add gpadc clock Message-ID: References: <20250411003827.782544-1-iuncuim@gmail.com> <20250411003827.782544-2-iuncuim@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20250411003827.782544-2-iuncuim@gmail.com> On Fri, Apr 11, 2025 at 08:38:21AM +0800, Mikhail Kalashnikov wrote: > From: Mikhail Kalashnikov > > Some processors (e.g. Allwinner A523) require GPADC clocking activation for > temperature sensors to work. So let's add support for enabling it. > > Signed-off-by: Mikhail Kalashnikov > --- > drivers/thermal/sun8i_thermal.c | 18 +++++++++++++++--- > 1 file changed, 15 insertions(+), 3 deletions(-) > > diff --git a/drivers/thermal/sun8i_thermal.c b/drivers/thermal/sun8i_thermal.c > index 226747906..1f3908a60 100644 > --- a/drivers/thermal/sun8i_thermal.c > +++ b/drivers/thermal/sun8i_thermal.c > @@ -66,8 +66,9 @@ struct tsensor { > }; > > struct ths_thermal_chip { > - bool has_mod_clk; > - bool has_bus_clk_reset; > + bool has_gpadc_clk; > + bool has_mod_clk; > + bool has_bus_clk_reset; > bool needs_sram; > int sensor_num; > int offset; > @@ -89,7 +90,8 @@ struct ths_device { > struct regmap_field *sram_regmap_field; > struct reset_control *reset; > struct clk *bus_clk; > - struct clk *mod_clk; > + struct clk *mod_clk; > + struct clk *gpadc_clk; > struct tsensor sensor[MAX_SENSOR_NUM]; > }; > > @@ -417,6 +419,16 @@ static int sun8i_ths_resource_init(struct ths_device *tmdev) > if (ret) > return ret; > > + if (tmdev->chip->has_gpadc_clk) { > + tmdev->gpadc_clk = devm_clk_get_enabled(&pdev->dev, "gpadc"); > + if (IS_ERR(tmdev->gpadc_clk)) > + return PTR_ERR(tmdev->gpadc_clk); return dev_err_probe(); > + } > + > + ret = clk_prepare_enable(tmdev->gpadc_clk); > + if (ret) > + return ret; > + Why calling clk_prepare_enable() ? devm_clk_get_enabled() did the job no ? > if (tmdev->chip->needs_sram) { > struct regmap *regmap; > > -- > 2.49.0 > -- Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog