[ Upstream commit 4eae8cbdff942a423926486be4e781a77d619966 ]
sprd's sd host controller doesn't support write protect to sd card.
Fixes: fb8bd90f83c4 ("mmc: sdhci-sprd: Add Spreadtrum's initial host controller") Signed-off-by: Chunyan Zhang chunyan.zhang@unisoc.com Signed-off-by: Chunyan Zhang zhang.lyra@gmail.com Reviewed-by: Baolin Wang baolin.wang@linaro.org Tested-by: Baolin Wang baolin.wang@linaro.org Cc: stable@vger.kernel.org Signed-off-by: Ulf Hansson ulf.hansson@linaro.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/mmc/host/sdhci-sprd.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/drivers/mmc/host/sdhci-sprd.c b/drivers/mmc/host/sdhci-sprd.c index 1c5e6b77ca641..fc892a8d882fd 100644 --- a/drivers/mmc/host/sdhci-sprd.c +++ b/drivers/mmc/host/sdhci-sprd.c @@ -291,6 +291,11 @@ static unsigned int sdhci_sprd_get_max_timeout_count(struct sdhci_host *host) return 1 << 31; }
+static unsigned int sdhci_sprd_get_ro(struct sdhci_host *host) +{ + return 0; +} + static struct sdhci_ops sdhci_sprd_ops = { .read_l = sdhci_sprd_readl, .write_l = sdhci_sprd_writel, @@ -303,6 +308,7 @@ static struct sdhci_ops sdhci_sprd_ops = { .set_uhs_signaling = sdhci_sprd_set_uhs_signaling, .hw_reset = sdhci_sprd_hw_reset, .get_max_timeout_count = sdhci_sprd_get_max_timeout_count, + .get_ro = sdhci_sprd_get_ro, };
static void sdhci_sprd_request(struct mmc_host *mmc, struct mmc_request *mrq)