From 1bcfbfd7c9aa716f61a01682345a1b329f6a6e66 Mon Sep 17 00:00:00 2001 From: Christophe Kerello Date: Wed, 8 Nov 2023 15:16:37 +0100 Subject: 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 Signed-off-by: Yann Gautier Reviewed-by: Linus Walleij Link: https://lore.kernel.org/r/20231108141637.119497-1-yann.gautier@foss.st.com Signed-off-by: Ulf Hansson --- drivers/mmc/host/mmci.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/mmc/host/mmci.h') 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; -- cgit v1.2.3