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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-6584b3e054fsm6616915a12.7.2026.01.27.05.15.29 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 27 Jan 2026 05:15:30 -0800 (PST) Message-ID: <847290c3-d5aa-45cf-a75b-ff119b608433@oss.qualcomm.com> Date: Tue, 27 Jan 2026 14:15:28 +0100 Precedence: bulk X-Mailing-List: linux-spi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v1 1/3] spi: geni-qcom: Improve target mode allocation by using proper allocation functions To: Praveen Talari , Mark Brown , linux-arm-msm@vger.kernel.org, linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org, bjorn.andersson@oss.qualcomm.com, dmitry.baryshkov@oss.qualcomm.com Cc: prasad.sodagudi@oss.qualcomm.com, mukesh.savaliya@oss.qualcomm.com, quic_vtanuku@quicinc.com, aniket.randive@oss.qualcomm.com, chandana.chiluveru@oss.qualcomm.com, jyothi.seerapu@oss.qualcomm.com References: <20260122151008.2149252-1-praveen.talari@oss.qualcomm.com> <20260122151008.2149252-2-praveen.talari@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260122151008.2149252-2-praveen.talari@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMTI3MDEwOCBTYWx0ZWRfX2KTBCm259Ui/ Y9NUbaWj828n6tsnInq0pwf713CEIcsMP0bxWCrde3T8Yi7b0j204dCgjro2BTQyRu6VF7wuSFe F2tjpGIGTE82QbTg9mZmw4EkObFMpLiX8w4hfVRJNvcmJnEqExUk8n241kpcViLWCepSHV5pdQN bUQ6E/HgxJ2rOyaQxKawDvi5fnW+/MqhSW0XS1d1MVtcoeS6hdB7mru6a0Mq/172KYLo5PNU8kd 3/yDco8ph/kRKNJzcC44M/pt545rXGFVOFAfSXmR/1e+RmlLslxLiKJ1Nf/1hQ7moGIm8y/dKLm MlF9Fkkrhtm+zOmpHxKlP5FIKBmkHopnzFXDzvJSbJWliovp24iEF8hteoi3Ru5Lno2HRsoTt1i OPDBnblpbQSOTimdGXCR7CdEvEf9IbwJPpW3GJs1uuadUJsTRMOxo7DT7WFo7VV3jdIjEHm8jZv lKk1v53su34upM/66eQ== X-Authority-Analysis: v=2.4 cv=Qelrf8bv c=1 sm=1 tr=0 ts=6978ba74 cx=c_pps a=JbAStetqSzwMeJznSMzCyw==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=vUbySO9Y5rIA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=EUspDBNiAAAA:8 a=XHOLzdKp66iKSBlp6ecA:9 a=QEXdDO2ut3YA:10 a=uxP6HrT_eTzRwkO_Te1X:22 X-Proofpoint-ORIG-GUID: YZL8zqQFOmYxtLp8hiYNUsC7kIeDajZ_ X-Proofpoint-GUID: YZL8zqQFOmYxtLp8hiYNUsC7kIeDajZ_ X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-01-27_02,2026-01-27_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 malwarescore=0 adultscore=0 phishscore=0 priorityscore=1501 impostorscore=0 lowpriorityscore=0 clxscore=1015 bulkscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2601270108 On 1/22/26 4:10 PM, Praveen Talari wrote: > The current implementation always allocates a host controller and sets the > target flag later when the "spi-slave" device tree property is present. > This approach is suboptimal as it doesn't utilize the dedicated allocation > functions designed for target mode. > > Use devm_spi_alloc_target() when "spi-slave" device tree property is > present, otherwise use devm_spi_alloc_host(). This replaces the previous > approach of always allocating a host controller and setting target flag > later. > > Signed-off-by: Praveen Talari > --- > drivers/spi/spi-geni-qcom.c | 15 ++++++++------- > 1 file changed, 8 insertions(+), 7 deletions(-) > > diff --git a/drivers/spi/spi-geni-qcom.c b/drivers/spi/spi-geni-qcom.c > index 0e5fd9df1a8f..f5d05025b196 100644 > --- a/drivers/spi/spi-geni-qcom.c > +++ b/drivers/spi/spi-geni-qcom.c > @@ -1017,6 +1017,14 @@ static int spi_geni_probe(struct platform_device *pdev) > struct clk *clk; > struct device *dev = &pdev->dev; > > + if (device_property_read_bool(dev, "spi-slave")) > + spi = devm_spi_alloc_target(dev, sizeof(*mas)); > + else > + spi = devm_spi_alloc_host(dev, sizeof(*mas)); > + > + if (!spi) > + return -ENOMEM; > + > irq = platform_get_irq(pdev, 0); > if (irq < 0) > return irq; > @@ -1033,10 +1041,6 @@ static int spi_geni_probe(struct platform_device *pdev) > if (IS_ERR(clk)) > return PTR_ERR(clk); > > - spi = devm_spi_alloc_host(dev, sizeof(*mas)); > - if (!spi) > - return -ENOMEM; Is there a reason you're moving this code to the top of the function? the "main" change looks ok Konrad