[PATCH V4]mmc: dw_mmc-k3: UHS-SD card for Hisilicon Hikey
From: Jin Guojun <hidden>
Date: 2016-08-04 02:18:18
Also in:
linux-mmc, lkml
Subsystem:
multimedia card (mmc), secure digital (sd) and sdio subsystem, synopsys designware mmc/sd/sdio driver, the rest · Maintainers:
Ulf Hansson, Jaehoon Chung, Shawn Lin, Linus Torvalds
mmc: dw_mmc-k3: Hisilicon Hikey have no tuning function in dw_mmc-k3.c,so we must do the tuning function stub when we init UHS card. V1:add .prepare_command in dw_mmc.c V2:delete .prepare_command, add err = 0 in dw_mci_execute_tuning V3:delete err = 0 in dw_mci_execute_tuning,add .execute_tuning in dw_mmc-k3.c V4:add "linux-mmc at vger.kernel.org", patch version, Changelog, etc.. Signed-off-by: Jin Guojun <redacted> --- drivers/mmc/host/dw_mmc-k3.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/drivers/mmc/host/dw_mmc-k3.c b/drivers/mmc/host/dw_mmc-k3.c
index 8e9d886..6247894 100644
--- a/drivers/mmc/host/dw_mmc-k3.c
+++ b/drivers/mmc/host/dw_mmc-k3.c@@ -131,11 +131,17 @@ static void dw_mci_hi6220_set_ios(struct dw_mci *host, struct mmc_ios *ios) host->bus_hz = clk_get_rate(host->biu_clk); } +static int dw_mci_hi6220_execute_tuning(struct dw_mci_slot *slot, u32 opcode) +{ + return 0; +} + static const struct dw_mci_drv_data hi6220_data = { .caps = dw_mci_hi6220_caps, .switch_voltage = dw_mci_hi6220_switch_voltage, .set_ios = dw_mci_hi6220_set_ios, .parse_dt = dw_mci_hi6220_parse_dt, + .execute_tuning = dw_mci_hi6220_execute_tuning, }; static const struct of_device_id dw_mci_k3_match[] = {
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1.9.1