Thread (41 messages) 41 messages, 6 authors, 2014-11-25

[PATCH v3] mmc: dw_mmc: add support for the other bit of sdio interrupt

From: heiko@sntech.de (Heiko Stübner)
Date: 2014-11-03 10:21:00
Also in: linux-devicetree, linux-mmc, lkml

Hi Jaehoon,

Am Montag, 3. November 2014, 17:59:58 schrieb Jaehoon Chung:
Hi, Addy.

On 11/03/2014 10:20 AM, Addy Ke wrote:
quoted
The bit of sdio interrupt is 16 in designware implementation,
but it is 24 on Rockchip SoCs.This patch add sdio_id0 for the
number of slot0 in the SDIO interrupt registers.

Signed-off-by: Addy Ke <redacted>
---
Changes in v2:
- rebase on http://git.linaro.org/git/people/ulf.hansson/mmc.git, next
branch Changes in v3:
- Remove dts for sdio_id0, just replace this with 8, suggested by Doug
- Change to support all Rockchip Socs, suggested by Heiko

 drivers/mmc/host/dw_mmc-rockchip.c | 10 ++++++++++
 drivers/mmc/host/dw_mmc.c          | 12 +++++++-----
 drivers/mmc/host/dw_mmc.h          |  2 ++
 include/linux/mmc/dw_mmc.h         |  3 +++
 4 files changed, 22 insertions(+), 5 deletions(-)
diff --git a/drivers/mmc/host/dw_mmc-rockchip.c
b/drivers/mmc/host/dw_mmc-rockchip.c index bbb4ec3..b997c8f 100644
--- a/drivers/mmc/host/dw_mmc-rockchip.c
+++ b/drivers/mmc/host/dw_mmc-rockchip.c
@@ -68,14 +68,24 @@ static void dw_mci_rk3288_set_ios(struct dw_mci *host,
struct mmc_ios *ios)> 
 	}
 
 }

+static int dw_mci_rockchip_parse_dt(struct dw_mci *host)
+{
+	/* It is slot 8 on Rockchip SoCs */
+	host->sdio_id0 = 8;
+
+	return 0;
+}
Well, function is "__parse_dt__", but this function don't parse anything.
If All rockchip soc is supported, i think that it can be located to other
place.
do you have a suggestion for a location?

The only alternative I can see right now would be using the init-hook in 
dw_mci_drv_data or adding a new field to it holding the slot-offset.
[with using the init-hook being my personal preference of the two]


Heiko
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