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[199.106.103.254]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-231d4edb0d0sm59771315ad.254.2025.05.19.07.13.01 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 19 May 2025 07:13:02 -0700 (PDT) Message-ID: Date: Mon, 19 May 2025 08:13:00 -0600 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 v3] bus: mhi: host: fix endianness of BHI vector table To: Alexander Wilhelm , Manivannan Sadhasivam Cc: mhi@lists.linux.dev, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org References: <20250519061014.12225-1-alexander.wilhelm@westermo.com> Content-Language: en-US From: Jeff Hugo In-Reply-To: <20250519061014.12225-1-alexander.wilhelm@westermo.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=XKEwSRhE c=1 sm=1 tr=0 ts=682b3c70 cx=c_pps a=JL+w9abYAAE89/QcEU+0QA==:117 a=JYp8KDb2vCoCEuGobkYCKw==:17 a=IkcTkHD0fZMA:10 a=dt9VzEwgFbYA:10 a=N9GNhs4bAAAA:8 a=EUspDBNiAAAA:8 a=rGmKAQFIsUGY2xqShAEA:9 a=QEXdDO2ut3YA:10 a=324X-CrmTo6CU4MGRt3R:22 a=PZhj9NlD-CKO8hVp7yCs:22 X-Proofpoint-ORIG-GUID: ONHZ_5b9ZMmdVAeWxJkQUcdp_4vSpxkL X-Proofpoint-GUID: ONHZ_5b9ZMmdVAeWxJkQUcdp_4vSpxkL X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwNTE5MDEzMSBTYWx0ZWRfXwhJklZBqlDNI Cpq71DYA3UB5ryMIwcrj+ME834h70gNjqEhvyI9X/qq30shTXEexh9ZjiyKaaPNbCJ8t63Qcpix buRXb1+FP14sNd/p78f6+qeEjUh/deKk3vsi0nUZA/BjKWIwFWnEczMQF4UNnlUxxdwpjN21HhY ePTpI+dvBjw9QK5Tk7JNXXXoCRnoI8+DFZiC8jC54/IFXqlHMunVz0jgIpQsQwhhHNk4ikhQN4f VVjYiBw+eT3NdP2ejZY+q17eOW3lbgWycFJaiN7+72nbXSL4Um1SXRhDQJd3h3Hs5geu9Uy9SMG hEbvMY4OH4Kn6dQtanEmCybqyeArvjJZHle8tD7chcQv7JRBuxoA5uYvydrMUZUTpk1T7rkoRRW rO7HhC2lWeoXx3fob5RiU5Mow4mp2q5Q+GA4LgxeCQT4bCB9XA30tDi214TVyoVziBOMfjXL X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.0.736,FMLib:17.12.80.40 definitions=2025-05-19_06,2025-05-16_03,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 priorityscore=1501 impostorscore=0 clxscore=1015 spamscore=0 suspectscore=0 malwarescore=0 adultscore=0 mlxscore=0 mlxlogscore=999 phishscore=0 bulkscore=0 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2505070000 definitions=main-2505190131 On 5/19/2025 12:10 AM, Alexander Wilhelm wrote: > On big endian platform like PowerPC the MHI bus does not start properly. The > following example shows the error messages by using qcn9274 wireless radio > module with ath12k driver: > > ath12k_pci 0001:01:00.0: BAR 0: assigned [mem 0xc00000000-0xc001fffff 64bit] > ath12k_pci 0001:01:00.0: MSI vectors: 1 > ath12k_pci 0001:01:00.0: Hardware name: qcn9274 hw2.0 > ath12k_pci 0001:01:00.0: failed to set mhi state: POWER_ON(2) > ath12k_pci 0001:01:00.0: failed to start mhi: -110 > ath12k_pci 0001:01:00.0: failed to power up :-110 > ath12k_pci 0001:01:00.0: failed to create soc core: -110 > ath12k_pci 0001:01:00.0: failed to init core: -110 > ath12k_pci: probe of 0001:01:00.0 failed with error -110 > > Fix it by swapping DMA address and size of the BHI vector table. > > Signed-off-by: Alexander Wilhelm > Reviewed-by: Jeff Hugo Shouldn't there be a fixes tag? Probably pointing to one of the original MHI commits given what this change is touching. -Jeff