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[103.229.18.19]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-1410199bfd8sm8337541c88.2.2026.08.07.09.04.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 07 Aug 2026 09:04:09 -0700 (PDT) From: Md Sadre Alam Subject: [PATCH v2 0/3] Add quad mode support for QPIC SNAND Date: Fri, 07 Aug 2026 21:33:54 +0530 Message-Id: <20260807-quad-v2-0-8ec821e2f22b@oss.qualcomm.com> 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: 7bit X-B4-Tracking: v=1; b=H4sIAOoBdmoC/1WOPQ6DMAxGr4I8NygJNKmYeo+KIQVTLBVofkBUi Ls3hKmLpWf7e/YGHh2hhyrbwOFCnqYxgrxk0PRmfCGjNjJILhXXQjE7m5ZhI7W6FkJLUUJc/Tj saE2aR32yQztHWzib8DQeWTMNA4UqG3ENLBlvXMER6MmHyX3TG4tIif+Li2CcqUJ1umyN0CjuN lAeR+9DmscC9b7vPydIfobQAAAA X-Change-ID: 20260716-quad-ec2765317214 To: Mark Brown Cc: linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, Md Sadre Alam , Md Sadre Alam X-Mailer: b4 0.14.3 X-Proofpoint-GUID: LnM64jBTGROs-KvhWtNuHfFWnEk-9pUj X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODA3MDEyNSBTYWx0ZWRfXydSoz14uqZJt +qVJ0uGSAcPVTUiFyGpoKLKinMlK0aQobLWiTw2aaNXwWn+2V9YDqgpqcoR+M0tC7d8Hj6TeSyy f6XnkTJyDl9LlD8Ox5XHN9l7ddHAJZK0XZXRNkrlHwO3ekjrF80wwrgZ/tceLVmCRdcOnMUPika 9xYbKh4dGcgMzz30wGtp7w+6CrGdF2jiJOK6nPx4jx0eQZsdXpduYcnkSysX4D/ea/2AMaqzlsB m6bcXPqiiEYoJSoCOA3Xi3F6mhgEL8NbXR9M4p+KngdpD/CiBqsBtvToC/ebESGGqmfXTW2Amxc R8aKFpjBpuVR7ETxEg9FzVntYrGiQr4aHiAdg7mydYFa52w0IzIVg6kxLZZsKBLmFGUgMbJA6ai P6a6ykqD7wwsm/8eTCR4waow+q0ODVHwXMxwgqmSRbigi4dMp8SgOuslBd8bDdnQC9tZTzZG8cy 77mOemIGXqs0UuE8UYA== X-Proofpoint-Spam-Info: AW1haW4tMjYwODA3MDEyNSBTYWx0ZWRfX5QXa1AA2k7NP 6dSMr8lr3a7uDHxGvDAWpmlNqmJ58gP+GUmN0Qvz+YSQejwkO8+aK9gxbD6SE/nZGD+dD0hwhyD T3Aadi8Xqhh7VYWIkfKekBHh3yOEenw= X-Proofpoint-ORIG-GUID: LnM64jBTGROs-KvhWtNuHfFWnEk-9pUj X-Authority-Analysis: v=2.4 cv=MbpcfZ/f c=1 sm=1 tr=0 ts=6a7601fc cx=c_pps a=UNFcQwm+pnOIJct1K4W+Mw==:117 a=Ou0eQOY4+eZoSc0qltEV5Q==:17 a=IkcTkHD0fZMA:10 a=Sv0fKeRqtYgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=ZpdpYltYx_vBUK5n70dp:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=NJlDZn8G7RColAB3xCoA:9 a=QEXdDO2ut3YA:10 a=uKXjsCUrEbL0IQVhDsJ9:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-08-07_02,2026-08-07_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 adultscore=0 priorityscore=1501 clxscore=1015 malwarescore=0 bulkscore=0 lowpriorityscore=0 suspectscore=0 spamscore=0 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608070125 The Qualcomm QPIC SPI-NAND controller supports both single (x1) and quad (x4) transfer modes, however the current driver operates only in single-bit mode. This series adds support for quad data transfers and includes a vendor-specific fix required for Macronix SPI-NAND devices. Signed-off-by: Md Sadre Alam --- Changes in v2: - Removed incorrect if check - Updated snandc->qspi->cmd with quad command for further read in quad mode. - Link to v1: https://lore.kernel.org/r/20260716-quad-v1-0-636f74da17e1@qti.qualcomm.com --- Md Sadre Alam (3): spi: spi-qpic-snand: move command mapping helper spi: spi-qpic-snand: add quad mode support spi: spi-qpic-snand: Handle Macronix quad read opcode 0x6b drivers/spi/spi-qpic-snand.c | 155 ++++++++++++++++++++++++++++--------------- 1 file changed, 103 insertions(+), 52 deletions(-) --- base-commit: d56fa0b2bd2d9b2fddc10e8f5bdd42d56676935c change-id: 20260716-quad-ec2765317214 Best regards, -- Md Sadre Alam