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([2a01:e0a:106d:1080:79e1:f56b:445c:ca9c]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-488fb75ab25sm179552435e9.11.2026.04.24.02.47.49 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 24 Apr 2026 02:47:50 -0700 (PDT) Message-ID: Date: Fri, 24 Apr 2026 11:47:49 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird From: Neil Armstrong Subject: Re: [PATCH v4 3/8] firmware: meson: sm: Add thermal calibration SMC call To: linux-kernel-dev@aliel.fr, Guillaume La Roque , "Rafael J. Wysocki" , Daniel Lezcano , Zhang Rui , Lukasz Luba , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Kevin Hilman , Jerome Brunet , Martin Blumenstingl Cc: linux-pm@vger.kernel.org, linux-amlogic@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org References: <20260423-add-thermal-t7-vim4-v4-0-d4c1528d5044@aliel.fr> <20260423-add-thermal-t7-vim4-v4-3-d4c1528d5044@aliel.fr> Content-Language: en-US, fr Autocrypt: addr=neil.armstrong@linaro.org; keydata= xsBNBE1ZBs8BCAD78xVLsXPwV/2qQx2FaO/7mhWL0Qodw8UcQJnkrWmgTFRobtTWxuRx8WWP GTjuhvbleoQ5Cxjr+v+1ARGCH46MxFP5DwauzPekwJUD5QKZlaw/bURTLmS2id5wWi3lqVH4 BVF2WzvGyyeV1o4RTCYDnZ9VLLylJ9bneEaIs/7cjCEbipGGFlfIML3sfqnIvMAxIMZrvcl9 qPV2k+KQ7q+aXavU5W+yLNn7QtXUB530Zlk/d2ETgzQ5FLYYnUDAaRl+8JUTjc0CNOTpCeik 80TZcE6f8M76Xa6yU8VcNko94Ck7iB4vj70q76P/J7kt98hklrr85/3NU3oti3nrIHmHABEB AAHNKk5laWwgQXJtc3Ryb25nIDxuZWlsLmFybXN0cm9uZ0BsaW5hcm8ub3JnPsLAkQQTAQoA OwIbIwULCQgHAwUVCgkICwUWAgMBAAIeAQIXgBYhBInsPQWERiF0UPIoSBaat7Gkz/iuBQJk Q5wSAhkBAAoJEBaat7Gkz/iuyhMIANiD94qDtUTJRfEW6GwXmtKWwl/mvqQtaTtZID2dos04 YqBbshiJbejgVJjy+HODcNUIKBB3PSLaln4ltdsV73SBcwUNdzebfKspAQunCM22Mn6FBIxQ GizsMLcP/0FX4en9NaKGfK6ZdKK6kN1GR9YffMJd2P08EO8mHowmSRe/ExAODhAs9W7XXExw UNCY4pVJyRPpEhv373vvff60bHxc1k/FF9WaPscMt7hlkbFLUs85kHtQAmr8pV5Hy9ezsSRa GzJmiVclkPc2BY592IGBXRDQ38urXeM4nfhhvqA50b/nAEXc6FzqgXqDkEIwR66/Gbp0t3+r yQzpKRyQif3OwE0ETVkGzwEIALyKDN/OGURaHBVzwjgYq+ZtifvekdrSNl8TIDH8g1xicBYp QTbPn6bbSZbdvfeQPNCcD4/EhXZuhQXMcoJsQQQnO4vwVULmPGgtGf8PVc7dxKOeta+qUh6+ SRh3vIcAUFHDT3f/Zdspz+e2E0hPV2hiSvICLk11qO6cyJE13zeNFoeY3ggrKY+IzbFomIZY 4yG6xI99NIPEVE9lNBXBKIlewIyVlkOaYvJWSV+p5gdJXOvScNN1epm5YHmf9aE2ZjnqZGoM Mtsyw18YoX9BqMFInxqYQQ3j/HpVgTSvmo5ea5qQDDUaCsaTf8UeDcwYOtgI8iL4oHcsGtUX oUk33HEAEQEAAcLAXwQYAQIACQUCTVkGzwIbDAAKCRAWmrexpM/4rrXiB/sGbkQ6itMrAIfn M7IbRuiSZS1unlySUVYu3SD6YBYnNi3G5EpbwfBNuT3H8//rVvtOFK4OD8cRYkxXRQmTvqa3 3eDIHu/zr1HMKErm+2SD6PO9umRef8V82o2oaCLvf4WeIssFjwB0b6a12opuRP7yo3E3gTCS KmbUuLv1CtxKQF+fUV1cVaTPMyT25Od+RC1K+iOR0F54oUJvJeq7fUzbn/KdlhA8XPGzwGRy 4zcsPWvwnXgfe5tk680fEKZVwOZKIEuJC3v+/yZpQzDvGYJvbyix0lHnrCzq43WefRHI5XTT QbM0WUIBIcGmq38+OgUsMYu4NzLu7uZFAcmp6h8g Organization: Linaro In-Reply-To: <20260423-add-thermal-t7-vim4-v4-3-d4c1528d5044@aliel.fr> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260424_024752_951684_28C95F49 X-CRM114-Status: GOOD ( 17.24 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Neil Armstrong Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 4/23/26 18:07, Ronald Claveau via B4 Relay wrote: > From: Ronald Claveau > > Add SM_THERMAL_CALIB_READ at SMC ID 0x82000047 in the command > table and implement meson_sm_get_thermal_calib(), which forwards the > tsensor_id argument to the secure monitor and returns the calibration data. > > Also realign the CMD() column to improve readability. > > Signed-off-by: Ronald Claveau > --- > drivers/firmware/meson/meson_sm.c | 29 ++++++++++++++++++++++++----- > 1 file changed, 24 insertions(+), 5 deletions(-) > > diff --git a/drivers/firmware/meson/meson_sm.c b/drivers/firmware/meson/meson_sm.c > index 3ab67aaa9e5da..4e57986724212 100644 > --- a/drivers/firmware/meson/meson_sm.c > +++ b/drivers/firmware/meson/meson_sm.c > @@ -41,12 +41,13 @@ static const struct meson_sm_chip gxbb_chip = { > .cmd_shmem_in_base = 0x82000020, > .cmd_shmem_out_base = 0x82000021, > .cmd = { > - CMD(SM_EFUSE_READ, 0x82000030), > - CMD(SM_EFUSE_WRITE, 0x82000031), > + CMD(SM_EFUSE_READ, 0x82000030), > + CMD(SM_EFUSE_WRITE, 0x82000031), > CMD(SM_EFUSE_USER_MAX, 0x82000033), > - CMD(SM_GET_CHIP_ID, 0x82000044), > - CMD(SM_A1_PWRC_SET, 0x82000093), > - CMD(SM_A1_PWRC_GET, 0x82000095), > + CMD(SM_GET_CHIP_ID, 0x82000044), > + CMD(SM_THERMAL_CALIB_READ, 0x82000047), > + CMD(SM_A1_PWRC_SET, 0x82000093), > + CMD(SM_A1_PWRC_GET, 0x82000095), > { /* sentinel */ }, > }, > }; > @@ -245,6 +246,24 @@ struct meson_sm_firmware *meson_sm_get(struct device_node *sm_node) > } > EXPORT_SYMBOL_GPL(meson_sm_get); > > +/** > + * > + * meson_sm_get_thermal_calib - Read thermal sensor calibration data. > + * @fw: Pointer to secure-monitor firmware. > + * @trim_info: Pointer to store the returned calibration data. > + * @tsensor_id: Sensor index to identify which sensor's calibration data > + * to retrieve > + * > + * Return: 0 on success, negative error code on failure. > + */ > +int meson_sm_get_thermal_calib(struct meson_sm_firmware *fw, u32 *trim_info, > + u32 tsensor_id) > +{ > + return meson_sm_call(fw, SM_THERMAL_CALIB_READ, trim_info, tsensor_id, > + 0, 0, 0, 0); > +} > +EXPORT_SYMBOL_GPL(meson_sm_get_thermal_calib); > + > #define SM_CHIP_ID_LENGTH 119 > #define SM_CHIP_ID_OFFSET 4 > #define SM_CHIP_ID_SIZE 12 > Reviewed-by: Neil Armstrong Thanks, Neil