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* [PATCH V4]mmc: dw_mmc-k3: UHS-SD card for Hisilicon Hikey
@ 2016-08-04  2:16 Jin Guojun
  2016-08-08  7:10 ` Jinguojun
  0 siblings, 1 reply; 7+ messages in thread
From: Jin Guojun @ 2016-08-04  2:16 UTC (permalink / raw)
  To: linux-mmc, linux-kernel, linux-arm-kernel, kid.jin, ulf.hansson,
	adrian.hunter, jh80.chung, wsa+renesas, arnd, rmk+kernel,
	shawn.lin
  Cc: guodong.xu, kongfei, suzhuangluan

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@vger.kernel.org", patch version, Changelog, etc..

Signed-off-by: Jin Guojun <kid.jin@hisilicon.com>
---
 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[] = {
-- 
1.9.1

^ permalink raw reply	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2016-08-23  9:01 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-08-04  2:16 [PATCH V4]mmc: dw_mmc-k3: UHS-SD card for Hisilicon Hikey Jin Guojun
2016-08-08  7:10 ` Jinguojun
2016-08-08  9:10   ` Shawn Lin
2016-08-08 10:46     ` Jaehoon Chung
2016-08-17  6:11       ` Jinguojun
2016-08-17  7:20         ` Jaehoon Chung
2016-08-23  9:00           ` Jinguojun

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