From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Laurent Pinchart To: Kieran Bingham Cc: linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Kieran Bingham , Jean-Michel Hautbois , Sergei Shtylyov , Lars-Peter Clausen , Kieran Bingham , Archit Taneja , Andrzej Hajda , David Airlie , Hans Verkuil , Neil Armstrong , Daniel Vetter , Bhumika Goyal , Inki Dae Subject: Re: [PATCH v3 5/5] drm: adv7511: Add support for i2c_new_secondary_device Date: Tue, 13 Feb 2018 14:23:30 +0200 Message-ID: <3664373.zGkbJUDGbo@avalon> In-Reply-To: <1518473273-6333-6-git-send-email-kbingham@kernel.org> References: <1518473273-6333-1-git-send-email-kbingham@kernel.org> <1518473273-6333-6-git-send-email-kbingham@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="iso-8859-1" Sender: linux-media-owner@vger.kernel.org List-ID: Hi Kieran, Thank you for the patch. On Tuesday, 13 February 2018 00:07:53 EET Kieran Bingham wrote: > From: Kieran Bingham >=20 > The ADV7511 has four 256-byte maps that can be accessed via the main I=B2C > ports. Each map has it own I=B2C address and acts as a standard slave > device on the I=B2C bus. >=20 > Allow a device tree node to override the default addresses so that > address conflicts with other devices on the same bus may be resolved at > the board description level. >=20 > Signed-off-by: Kieran Bingham > --- > v2: > - Update missing edid-i2c address setting > - Split out DT bindings > - Rename and move the I2C default addresses to their own section >=20 > drivers/gpu/drm/bridge/adv7511/adv7511.h | 6 ++++ > drivers/gpu/drm/bridge/adv7511/adv7511_drv.c | 42 ++++++++++++++++------= =2D- > 2 files changed, 33 insertions(+), 15 deletions(-) >=20 > diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511.h > b/drivers/gpu/drm/bridge/adv7511/adv7511.h index d034b2cb5eee..04e6759ee4= 5b > 100644 > --- a/drivers/gpu/drm/bridge/adv7511/adv7511.h > +++ b/drivers/gpu/drm/bridge/adv7511/adv7511.h > @@ -93,6 +93,11 @@ > #define ADV7511_REG_CHIP_ID_HIGH 0xf5 > #define ADV7511_REG_CHIP_ID_LOW 0xf6 >=20 > +/* Hardware defined default addresses for i2c register maps */ s/i2c/I2C/ ? That's really because I had to find something :-) Reviewed-by: Laurent Pinchart > +#define ADV7511_CEC_I2C_ADDR_DEFAULT 0x3c > +#define ADV7511_EDID_I2C_ADDR_DEFAULT 0x3f > +#define ADV7511_PACKET_I2C_ADDR_DEFAULT 0x38 > + > #define ADV7511_CSC_ENABLE BIT(7) > #define ADV7511_CSC_UPDATE_MODE BIT(5) >=20 > @@ -322,6 +327,7 @@ struct adv7511 { > struct i2c_client *i2c_main; > struct i2c_client *i2c_edid; > struct i2c_client *i2c_cec; > + struct i2c_client *i2c_packet; >=20 > struct regmap *regmap; > struct regmap *regmap_cec; > diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c > b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c index > efa29db5fc2b..5e61b928c9c0 100644 > --- a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c > +++ b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c > @@ -586,7 +586,7 @@ static int adv7511_get_modes(struct adv7511 *adv7511, > /* Reading the EDID only works if the device is powered */ > if (!adv7511->powered) { > unsigned int edid_i2c_addr =3D > - (adv7511->i2c_main->addr << 1) + 4; > + (adv7511->i2c_edid->addr << 1); >=20 > __adv7511_power_on(adv7511); >=20 > @@ -969,10 +969,10 @@ static int adv7511_init_cec_regmap(struct adv7511 > *adv) { > int ret; >=20 > - adv->i2c_cec =3D i2c_new_dummy(adv->i2c_main->adapter, > - adv->i2c_main->addr - 1); > + adv->i2c_cec =3D i2c_new_secondary_device(adv->i2c_main, "cec", > + ADV7511_CEC_I2C_ADDR_DEFAULT); > if (!adv->i2c_cec) > - return -ENOMEM; > + return -EINVAL; > i2c_set_clientdata(adv->i2c_cec, adv); >=20 > adv->regmap_cec =3D devm_regmap_init_i2c(adv->i2c_cec, > @@ -1082,8 +1082,6 @@ static int adv7511_probe(struct i2c_client *i2c, co= nst > struct i2c_device_id *id) struct adv7511_link_config link_config; > struct adv7511 *adv7511; > struct device *dev =3D &i2c->dev; > - unsigned int main_i2c_addr =3D i2c->addr << 1; > - unsigned int edid_i2c_addr =3D main_i2c_addr + 4; > unsigned int val; > int ret; >=20 > @@ -1153,24 +1151,35 @@ static int adv7511_probe(struct i2c_client *i2c, > const struct i2c_device_id *id) if (ret) > goto uninit_regulators; >=20 > - regmap_write(adv7511->regmap, ADV7511_REG_EDID_I2C_ADDR, edid_i2c_addr); > - regmap_write(adv7511->regmap, ADV7511_REG_PACKET_I2C_ADDR, > - main_i2c_addr - 0xa); > - regmap_write(adv7511->regmap, ADV7511_REG_CEC_I2C_ADDR, > - main_i2c_addr - 2); > - > adv7511_packet_disable(adv7511, 0xffff); >=20 > - adv7511->i2c_edid =3D i2c_new_dummy(i2c->adapter, edid_i2c_addr >> 1); > + adv7511->i2c_edid =3D i2c_new_secondary_device(i2c, "edid", > + ADV7511_EDID_I2C_ADDR_DEFAULT); > if (!adv7511->i2c_edid) { > - ret =3D -ENOMEM; > + ret =3D -EINVAL; > goto uninit_regulators; > } >=20 > + regmap_write(adv7511->regmap, ADV7511_REG_EDID_I2C_ADDR, > + adv7511->i2c_edid->addr << 1); > + > ret =3D adv7511_init_cec_regmap(adv7511); > if (ret) > goto err_i2c_unregister_edid; >=20 > + regmap_write(adv7511->regmap, ADV7511_REG_CEC_I2C_ADDR, > + adv7511->i2c_cec->addr << 1); > + > + adv7511->i2c_packet =3D i2c_new_secondary_device(i2c, "packet", > + ADV7511_PACKET_I2C_ADDR_DEFAULT); > + if (!adv7511->i2c_packet) { > + ret =3D -EINVAL; > + goto err_unregister_cec; > + } > + > + regmap_write(adv7511->regmap, ADV7511_REG_PACKET_I2C_ADDR, > + adv7511->i2c_packet->addr << 1); > + > INIT_WORK(&adv7511->hpd_work, adv7511_hpd_work); >=20 > if (i2c->irq) { > @@ -1181,7 +1190,7 @@ static int adv7511_probe(struct i2c_client *i2c, co= nst > struct i2c_device_id *id) IRQF_ONESHOT, dev_name(dev), > adv7511); > if (ret) > - goto err_unregister_cec; > + goto err_unregister_packet; > } >=20 > adv7511_power_off(adv7511); > @@ -1203,6 +1212,8 @@ static int adv7511_probe(struct i2c_client *i2c, co= nst > struct i2c_device_id *id) adv7511_audio_init(dev, adv7511); > return 0; >=20 > +err_unregister_packet: > + i2c_unregister_device(adv7511->i2c_packet); > err_unregister_cec: > i2c_unregister_device(adv7511->i2c_cec); > if (adv7511->cec_clk) > @@ -1234,6 +1245,7 @@ static int adv7511_remove(struct i2c_client *i2c) > cec_unregister_adapter(adv7511->cec_adap); >=20 > i2c_unregister_device(adv7511->i2c_edid); > + i2c_unregister_device(adv7511->i2c_packet); >=20 > return 0; > } =2D-=20 Regards, Laurent Pinchart From mboxrd@z Thu Jan 1 00:00:00 1970 From: Laurent Pinchart Subject: Re: [PATCH v3 5/5] drm: adv7511: Add support for i2c_new_secondary_device Date: Tue, 13 Feb 2018 14:23:30 +0200 Message-ID: <3664373.zGkbJUDGbo@avalon> References: <1518473273-6333-1-git-send-email-kbingham@kernel.org> <1518473273-6333-6-git-send-email-kbingham@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from galahad.ideasonboard.com (galahad.ideasonboard.com [IPv6:2001:4b98:dc2:45:216:3eff:febb:480d]) by gabe.freedesktop.org (Postfix) with ESMTPS id CE25E8980C for ; Tue, 13 Feb 2018 12:22:59 +0000 (UTC) In-Reply-To: <1518473273-6333-6-git-send-email-kbingham@kernel.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Kieran Bingham Cc: Hans Verkuil , Sergei Shtylyov , Neil Armstrong , David Airlie , Daniel Vetter , Kieran Bingham , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Kieran Bingham , Jean-Michel Hautbois , Bhumika Goyal , linux-media@vger.kernel.org List-Id: dri-devel@lists.freedesktop.org SGkgS2llcmFuLAoKVGhhbmsgeW91IGZvciB0aGUgcGF0Y2guCgpPbiBUdWVzZGF5LCAxMyBGZWJy dWFyeSAyMDE4IDAwOjA3OjUzIEVFVCBLaWVyYW4gQmluZ2hhbSB3cm90ZToKPiBGcm9tOiBLaWVy YW4gQmluZ2hhbSA8a2llcmFuLmJpbmdoYW0rcmVuZXNhc0BpZGVhc29uYm9hcmQuY29tPgo+IAo+ IFRoZSBBRFY3NTExIGhhcyBmb3VyIDI1Ni1ieXRlIG1hcHMgdGhhdCBjYW4gYmUgYWNjZXNzZWQg dmlhIHRoZSBtYWluIEnCskMKPiBwb3J0cy4gRWFjaCBtYXAgaGFzIGl0IG93biBJwrJDIGFkZHJl c3MgYW5kIGFjdHMgYXMgYSBzdGFuZGFyZCBzbGF2ZQo+IGRldmljZSBvbiB0aGUgScKyQyBidXMu Cj4gCj4gQWxsb3cgYSBkZXZpY2UgdHJlZSBub2RlIHRvIG92ZXJyaWRlIHRoZSBkZWZhdWx0IGFk 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