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[144.178.202.139]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-639f3d09b92sm2231273a12.30.2025.10.09.05.23.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 09 Oct 2025 05:23:49 -0700 (PDT) From: Griffin Kroah-Hartman Date: Thu, 09 Oct 2025 14:23:39 +0200 Subject: [PATCH RFC 2/3] media: i2c: ak7375: Add support for ak7377 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-Transfer-Encoding: quoted-printable Message-Id: <20251009-ak7377-driver-v1-2-29e4f6e16ed3@fairphone.com> References: <20251009-ak7377-driver-v1-0-29e4f6e16ed3@fairphone.com> In-Reply-To: <20251009-ak7377-driver-v1-0-29e4f6e16ed3@fairphone.com> To: Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Sakari Ailus , Tianshu Qiu , Mauro Carvalho Chehab , Luca Weiss Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, Griffin Kroah-Hartman X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1760012628; l=1584; i=griffin.kroah@fairphone.com; s=20250804; h=from:subject:message-id; bh=8gVlk9smM1PELBfkVeRiLfq5UVjtyIkKz5m4vaScY0Q=; b=D8BY0D0RkszxDBWlHYL6eM+A3qSf46i00GaDK8zQzyYjkdJb+CxhfoA4ySmtSYqDSWnTnpvai v1ivVB9v0rIAdZAH4kk12Ezgjw4MJuwJFNk4hE2g6H2rqkAk4fh0fjJ X-Developer-Key: i=griffin.kroah@fairphone.com; a=ed25519; pk=drSBvqKFiR+xucmLWONHSq/wGrW+YvcVtBXFYnYzn8U= Add support for AK7377 VCM, which is a similar chip to the AK7375. It has no known standby register setting. Some values were reverse-engineered from the other chip's code, so the driver may not currently be reaching its full potential. Signed-off-by: Griffin Kroah-Hartman --- drivers/media/i2c/ak7375.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/media/i2c/ak7375.c b/drivers/media/i2c/ak7375.c index 9a2432cea3fff9f0ff41796f97236449792dccfc..47f9d14d9a65d43e5a8e5d6966e= 8f330c99865f8 100644 --- a/drivers/media/i2c/ak7375.c +++ b/drivers/media/i2c/ak7375.c @@ -65,6 +65,19 @@ static const struct ak73xx_chipdef ak7375_cdef =3D { .power_delay_us =3D 10000, }; =20 +static const struct ak73xx_chipdef ak7377_cdef =3D { + .reg_position =3D 0x0, + .reg_cont =3D 0x2, + .shift_pos =3D 4, /* 12 bits position values, need to << 4 */ + .mode_active =3D 0x0, + .has_standby =3D false, + .focus_pos_max =3D 1024, + .focus_steps =3D 1, + .ctrl_steps =3D 32, + .ctrl_delay_us =3D 1000, + .power_delay_us =3D 10000, +}; + static const char * const ak7375_supply_names[] =3D { "vdd", "vio", @@ -331,6 +344,7 @@ static int __maybe_unused ak7375_vcm_resume(struct devi= ce *dev) static const struct of_device_id ak7375_of_table[] =3D { { .compatible =3D "asahi-kasei,ak7345", .data =3D &ak7345_cdef, }, { .compatible =3D "asahi-kasei,ak7375", .data =3D &ak7375_cdef, }, + { .compatible =3D "asahi-kasei,ak7377", .data =3D &ak7377_cdef, }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, ak7375_of_table); --=20 2.43.0