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[88.112.131.206]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-5401d02e665sm891456e87.242.2024.12.10.15.44.52 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 10 Dec 2024 15:44:53 -0800 (PST) Message-ID: <124bb490-58d9-4c8c-a83f-7c3d45f61e43@linaro.org> Date: Wed, 11 Dec 2024 01:44:45 +0200 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 08/16] media: qcom: camss: csid: Make TPG optional Content-Language: ru-RU To: Depeng Shao , rfoss@kernel.org, todor.too@gmail.com, bryan.odonoghue@linaro.org, mchehab@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org Cc: quic_eberman@quicinc.com, linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, kernel@quicinc.com References: <20241205155538.250743-1-quic_depengs@quicinc.com> <20241205155538.250743-9-quic_depengs@quicinc.com> From: Vladimir Zapolskiy In-Reply-To: <20241205155538.250743-9-quic_depengs@quicinc.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Hi Depeng, thank you for the changes and updates. On 12/5/24 17:55, Depeng Shao wrote: > From: Bryan O'Donoghue > > The Test Pattern Generator TPG has been moved out of the CSID and into a > standalone silicon block at the same level as a regular CSIPHY. > > Make the TPG calls optional to reflect the fact some CSID blocks will now > not implement this feature. > > Signed-off-by: Bryan O'Donoghue Please don't forget to add your Signed-off-by tag, if you pull someone's changes. > --- > .../media/platform/qcom/camss/camss-csid.c | 33 ++++++++++++------- > 1 file changed, 21 insertions(+), 12 deletions(-) > > diff --git a/drivers/media/platform/qcom/camss/camss-csid.c b/drivers/media/platform/qcom/camss/camss-csid.c > index 6cf8e434dc05..2cb8c37982f8 100644 > --- a/drivers/media/platform/qcom/camss/camss-csid.c > +++ b/drivers/media/platform/qcom/camss/camss-csid.c > @@ -838,7 +838,7 @@ static void csid_try_format(struct csid_device *csid, > break; > > case MSM_CSID_PAD_SRC: > - if (csid->testgen_mode->cur.val == 0) { > + if (!csid->testgen_mode || csid->testgen_mode->cur.val == 0) { > /* Test generator is disabled, */ > /* keep pad formats in sync */ > u32 code = fmt->code; > @@ -1042,6 +1042,7 @@ static int csid_init_formats(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) > static int csid_set_test_pattern(struct csid_device *csid, s32 value) > { > struct csid_testgen_config *tg = &csid->testgen; > + const struct csid_hw_ops *hw_ops = csid->res->hw_ops; > > /* If CSID is linked to CSIPHY, do not allow to enable test generator */ > if (value && media_pad_remote_pad_first(&csid->pads[MSM_CSID_PAD_SINK])) > @@ -1049,7 +1050,10 @@ static int csid_set_test_pattern(struct csid_device *csid, s32 value) > > tg->enabled = !!value; > > - return csid->res->hw_ops->configure_testgen_pattern(csid, value); > + if (hw_ops->configure_testgen_pattern) > + return -EOPNOTSUPP; > + else > + return hw_ops->configure_testgen_pattern(csid, value); Last time I reported about the regression here, it is announced as fixed in the changelog, but I see it is not, unfortunately. > } > > /* > @@ -1267,7 +1271,7 @@ static int csid_link_setup(struct media_entity *entity, > > /* If test generator is enabled */ > /* do not allow a link from CSIPHY to CSID */ > - if (csid->testgen_mode->cur.val != 0) > + if (csid->testgen_mode && csid->testgen_mode->cur.val != 0) > return -EBUSY; > > sd = media_entity_to_v4l2_subdev(remote->entity); > @@ -1366,15 +1370,20 @@ int msm_csid_register_entity(struct csid_device *csid, > return ret; > } > > - csid->testgen_mode = v4l2_ctrl_new_std_menu_items(&csid->ctrls, > - &csid_ctrl_ops, V4L2_CID_TEST_PATTERN, > - csid->testgen.nmodes, 0, 0, > - csid->testgen.modes); > - > - if (csid->ctrls.error) { > - dev_err(dev, "Failed to init ctrl: %d\n", csid->ctrls.error); > - ret = csid->ctrls.error; > - goto free_ctrl; > + if (csid->res->hw_ops->configure_testgen_pattern) { > + csid->testgen_mode = > + v4l2_ctrl_new_std_menu_items(&csid->ctrls, > + &csid_ctrl_ops, > + V4L2_CID_TEST_PATTERN, > + csid->testgen.nmodes, 0, > + 0, csid->testgen.modes); > + > + if (csid->ctrls.error) { > + dev_err(dev, "Failed to init ctrl: %d\n", > + csid->ctrls.error); > + ret = csid->ctrls.error; > + goto free_ctrl; > + } > } > > csid->subdev.ctrl_handler = &csid->ctrls; -- Best wishes, Vladimir