It has turned out that some host controllers can't use R1B for CMD6 and other commands that have R1B associated with them. Therefore invent a new host cap, MMC_CAP_NEED_RSP_BUSY to let them specify this. In __mmc_switch(), let's check the flag and use it to prevent R1B responses from being converted into R1. Note that, this also means that the host are on its own, when it comes to manage the busy timeout.
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| @@ -333,6 +333,7 @@ struct mmc_host { · 332 unmodified lines | |||
| 333 | MMC_CAP_UHS_SDR50 | MMC_CAP_UHS_SDR104 | \ | 333 | MMC_CAP_UHS_SDR50 | MMC_CAP_UHS_SDR104 | \ |
| 334 | MMC_CAP_UHS_DDR50) | 334 | MMC_CAP_UHS_DDR50) |
| 335 | #define MMC_CAP_SYNC_RUNTIME_PM (1 << 21) /* Synced runtime PM suspends. */ | 335 | #define MMC_CAP_SYNC_RUNTIME_PM (1 << 21) /* Synced runtime PM suspends. */ |
| 336 | #define MMC_CAP_NEED_RSP_BUSY (1 << 22) /* Commands with R1B can't use R1. */ | ||
| 336 | #define MMC_CAP_DRIVER_TYPE_A (1 << 23) /* Host supports Driver Type A */ | 337 | #define MMC_CAP_DRIVER_TYPE_A (1 << 23) /* Host supports Driver Type A */ |
| 337 | #define MMC_CAP_DRIVER_TYPE_C (1 << 24) /* Host supports Driver Type C */ | 338 | #define MMC_CAP_DRIVER_TYPE_C (1 << 24) /* Host supports Driver Type C */ |
| 338 | #define MMC_CAP_DRIVER_TYPE_D (1 << 25) /* Host supports Driver Type D */ | 339 | #define MMC_CAP_DRIVER_TYPE_D (1 << 25) /* Host supports Driver Type D */ |