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Wysocki" , Daniel Lezcano , 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: [PATCH 1/6] thermal/drivers/sun8i: add gpadc clock Date: Fri, 11 Apr 2025 08:38:21 +0800 Message-ID: <20250411003827.782544-2-iuncuim@gmail.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250411003827.782544-1-iuncuim@gmail.com> References: <20250411003827.782544-1-iuncuim@gmail.com> Precedence: bulk X-Mailing-List: linux-sunxi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Status: O 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); + } + + ret = clk_prepare_enable(tmdev->gpadc_clk); + if (ret) + return ret; + if (tmdev->chip->needs_sram) { struct regmap *regmap;