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| author | Christophe Kerello <christophe.kerello@foss.st.com> | 2023-11-08 17:16:37 +0300 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2023-12-07 16:08:44 +0300 |
| commit | 1bcfbfd7c9aa716f61a01682345a1b329f6a6e66 (patch) | |
| tree | 88f0b93072b7ca260a91bbfddce61f64c8ecd596 /drivers/mmc/host/mmci.h | |
| parent | 37c8ceb6d92c955f5dd8223c3f6c90b277322210 (diff) | |
| download | linux-1bcfbfd7c9aa716f61a01682345a1b329f6a6e66.tar.xz | |
mmc: mmci: stm32: add SDIO in-band interrupt mode
Add the support of SDIO in-band interrupt mode for STM32 and Ux500
variants.
It allows the SD I/O card to interrupt the host on SDMMC_D1 data line.
It is not enabled by default on Ux500 variant as this is unstable and
Ux500 users should use out-of-band IRQs.
Signed-off-by: Christophe Kerello <christophe.kerello@foss.st.com>
Signed-off-by: Yann Gautier <yann.gautier@foss.st.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20231108141637.119497-1-yann.gautier@foss.st.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/host/mmci.h')
| -rw-r--r-- | drivers/mmc/host/mmci.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/mmc/host/mmci.h b/drivers/mmc/host/mmci.h index 34d9897c289b..a5eb4ced4d5d 100644 --- a/drivers/mmc/host/mmci.h +++ b/drivers/mmc/host/mmci.h @@ -331,6 +331,7 @@ enum mmci_busy_state { * register. * @opendrain: bitmask identifying the OPENDRAIN bit inside MMCIPOWER register * @dma_lli: true if variant has dma link list feature. + * @supports_sdio_irq: allow SD I/O card to interrupt the host * @stm32_idmabsize_mask: stm32 sdmmc idma buffer size. * @dma_flow_controller: use peripheral as flow controller for DMA. */ @@ -377,6 +378,7 @@ struct variant_data { u32 start_err; u32 opendrain; u8 dma_lli:1; + bool supports_sdio_irq; u32 stm32_idmabsize_mask; u32 stm32_idmabsize_align; bool dma_flow_controller; |