From: Yann Gautier Date: Wed, 15 Dec 2021 14:17:27 +0000 (+0100) Subject: mmc: mmci: add hs200 support for stm32 sdmmc X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=36240ef8665b24d42ee3ac03b85f25bc6761ed13;p=linux.git mmc: mmci: add hs200 support for stm32 sdmmc Use feedback clock for HS200 mode, as for SDR104. The HS200 mode can be enabled through DT by using mmc-hs200-1_8v. It is possible to use it on STM32MP13, but not STM32MP15 platforms. Signed-off-by: Ludovic Barre Signed-off-by: Yann Gautier Reviewed-by: Linus Walleij Link: https://lore.kernel.org/r/20211215141727.4901-5-yann.gautier@foss.st.com Signed-off-by: Ulf Hansson --- diff --git a/drivers/mmc/host/mmci_stm32_sdmmc.c b/drivers/mmc/host/mmci_stm32_sdmmc.c index a75d3dd34d18c..9c13f2c313658 100644 --- a/drivers/mmc/host/mmci_stm32_sdmmc.c +++ b/drivers/mmc/host/mmci_stm32_sdmmc.c @@ -241,11 +241,12 @@ static void mmci_sdmmc_set_clkreg(struct mmci_host *host, unsigned int desired) /* * SDMMC_FBCK is selected when an external Delay Block is needed - * with SDR104. + * with SDR104 or HS200. */ if (host->mmc->ios.timing >= MMC_TIMING_UHS_SDR50) { clk |= MCI_STM32_CLK_BUSSPEED; - if (host->mmc->ios.timing == MMC_TIMING_UHS_SDR104) { + if (host->mmc->ios.timing == MMC_TIMING_UHS_SDR104 || + host->mmc->ios.timing == MMC_TIMING_MMC_HS200) { clk &= ~MCI_STM32_CLK_SEL_MSK; clk |= MCI_STM32_CLK_SELFBCK; }