Alexander Sverdlin 2bae1bf3d9 mtd: nand: raw: atmel: Respect tAR, tCLR in read setup timing ... [ Upstream commit fd779eac2d ] Having setup time 0 violates tAR, tCLR of some chips, for instance TOSHIBA TC58NVG2S3ETAI0 cannot be detected successfully (first ID byte being read duplicated, i.e. 98 98 dc 90 15 76 14 03 instead of 98 dc 90 15 76 ...). Atmel Application Notes postulated 1 cycle NRD_SETUP without explanation [1], but it looks more appropriate to just calculate setup time properly. [1] Link: https://ww1.microchip.com/downloads/aemDocuments/documents/MPU32/ApplicationNotes/ApplicationNotes/doc6255.pdf Cc: stable@vger.kernel.org Fixes: f9ce2eddf1 ("mtd: nand: atmel: Add ->setup_data_interface() hooks") Signed-off-by: Alexander Sverdlin <alexander.sverdlin@siemens.com> Tested-by: Alexander Dahl <ada@thorsis.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2025-09-19 16:29:57 +02:00
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nand	mtd: nand: raw: atmel: Respect tAR, tCLR in read setup timing	2025-09-19 16:29:57 +02:00
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