linux-kernel - Re: [PATCH v3 0/4 REPOST] OF infrastructure for SPI devices

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Date:	Sat, 2 Aug 2008 18:46:12 -0400
From:	"Jon Smirl" <jonsmirl@...il.com>
To:	"Grant Likely" <grant.likely@...retlab.ca>,
	"Anton Vorontsov" <avorontsov@...mvista.com>
Cc:	linux-kernel@...r.kernel.org,
	spi-devel-general@...ts.sourceforge.net, linuxppc-dev@...abs.org
Subject: Re: [PATCH v3 0/4 REPOST] OF infrastructure for SPI devices

On 7/25/08, Jon Smirl <jonsmirl@...il.com> wrote:
> On 7/25/08, Grant Likely <grant.likely@...retlab.ca> wrote:
>  > I don't know what to do with these patches.  I'd really like to see them
>  >  in .27, and now that akpm has cleared his queue, the prerequisite patch
>  >  has been merged so they are ready to go in.  However, even though there
>  >  has been favourable reception on the SPI and linuxppc lists for these
>  >  changes I don't have any acks from anybody yet.
>
>
> I have compatible hardware but it has an MMC card socket hooked up. I
>  haven't figured out yet how to get this driver hooked to the MMC
>  subsystem and make the file system on the card work.  (I've been
>  working on ALSA).
>
>  I believe I need this:
>  http://lkml.org/lkml/2008/6/5/209
>
>  Then I need to get everything hooked together. Point me in the right
>  direction and I can help with testing.

Grant, your SPI driver works with MMC cards. I needed to add the patch
noted above.
http://lkml.org/lkml/2008/6/5/209
What's the status of merging Anton's patch?

And then tweak names until everything matches.

		spi@f00 {
			#address-cells = <1>;
			#size-cells = <0>;
			compatible = "fsl,mpc5200b-spi","fsl,mpc5200-spi";
			reg = <0xf00 0x20>;
			interrupts = <0x2 0xd 0x0 0x2 0xe 0x0>;
			interrupt-parent = <&mpc5200_pic>;

			mmc-slot@0 {
				compatible = "linux,mmc-spi";
				reg = <0>;
				spi-max-frequency = <20000000>;
				/* Unregulated slot. */
				voltage-range = <3300 3300>;
				/*gpios = <&sdcsr_pio 1 0   /*  WP */
				/*		 &sdcsr_pio 0 1>; /* nCD */
			};
		};

diff --git a/drivers/mmc/host/mmc_spi.c b/drivers/mmc/host/mmc_spi.c
index 7503b81..eb056b9 100644
--- a/drivers/mmc/host/mmc_spi.c
+++ b/drivers/mmc/host/mmc_spi.c
@@ -1400,7 +1400,7 @@ static int __devexit mmc_spi_remove(struct
spi_device *spi)

 static struct spi_driver mmc_spi_driver = {
 	.driver = {
-		.name =		"mmc_spi",
+		.name =		"mmc-spi",
 		.bus =		&spi_bus_type,
 		.owner =	THIS_MODULE,
 	},
diff --git a/drivers/of/of_mmc_spi.c b/drivers/of/of_mmc_spi.c
index aa4e017..f189cdb 100644
--- a/drivers/of/of_mmc_spi.c
+++ b/drivers/of/of_mmc_spi.c
@@ -95,7 +95,7 @@ static int of_mmc_spi_add(struct device *dev)
 	const u32 *voltage_range;
 	int size;

-	if (!np || !of_device_is_compatible(np, "mmc-spi"))
+	if (!np || !of_device_is_compatible(np, "linux,mmc-spi"))
 		return NOTIFY_DONE;

 	oms = kzalloc(sizeof(*oms), GFP_KERNEL);
@@ -152,7 +152,7 @@ static int of_mmc_spi_del(struct device *dev)
 	struct device_node *np = dev->archdata.of_node;
 	struct of_mmc_spi *oms;

-	if (!np || !of_device_is_compatible(np, "mmc-spi") ||
+	if (!np || !of_device_is_compatible(np, "linux,mmc-spi") ||
 			!dev->platform_data)
 		return NOTIFY_DONE;

-- 
Jon Smirl
jonsmirl@...il.com
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