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mmc: au1xmmc: force non-modular build and remove symbol_get usage 

commit d4a5c59a95 upstream.

au1xmmc is split somewhat awkwardly into the main mmc subsystem driver,
and callbacks in platform_data that sit under arch/mips/ and are
always built in.  The latter than call mmc_detect_change through
symbol_get.  Remove the use of symbol_get by requiring the driver
to be built in.  In the future the interrupt handlers for card
insert/eject detection should probably be moved into the main driver,
and which point it can be built modular again.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Manuel Lauss <manuel.lauss@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
[mcgrof: squashed in depends on MMC=y suggested by Arnd]
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Christoph Hellwig 2023-08-01 19:35:41 +02:00 committed by Greg Kroah-Hartman
parent ac6fa0e04b
commit 4dab89cccd
4 changed files with 7 additions and 35 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
arch/mips/alchemy/devboards/db1000.c
View File

@ -14,7 +14,6 @@
#include <linux/interrupt.h>
#include <linux/leds.h>
#include <linux/mmc/host.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/pm.h>
#include <linux/spi/spi.h>
@ -167,12 +166,7 @@ static struct platform_device db1x00_audio_dev = {
static irqreturn_t db1100_mmc_cd(int irq, void *ptr)
{
void (*mmc_cd)(struct mmc_host *, unsigned long);
/* link against CONFIG_MMC=m */
mmc_cd = symbol_get(mmc_detect_change);
mmc_cd(ptr, msecs_to_jiffies(500));
symbol_put(mmc_detect_change);
mmc_detect_change(ptr, msecs_to_jiffies(500));
return IRQ_HANDLED;
}

19
arch/mips/alchemy/devboards/db1200.c
View File

@ -10,7 +10,6 @@
#include <linux/gpio.h>
#include <linux/i2c.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/leds.h>
@ -340,14 +339,7 @@ static irqreturn_t db1200_mmc_cd(int irq, void *ptr)
static irqreturn_t db1200_mmc_cdfn(int irq, void *ptr)
{
void (*mmc_cd)(struct mmc_host *, unsigned long);
/* link against CONFIG_MMC=m */
mmc_cd = symbol_get(mmc_detect_change);
if (mmc_cd) {
mmc_cd(ptr, msecs_to_jiffies(200));
symbol_put(mmc_detect_change);
}
mmc_detect_change(ptr, msecs_to_jiffies(200));
msleep(100); /* debounce */
if (irq == DB1200_SD0_INSERT_INT)
@ -431,14 +423,7 @@ static irqreturn_t pb1200_mmc1_cd(int irq, void *ptr)
static irqreturn_t pb1200_mmc1_cdfn(int irq, void *ptr)
{
void (*mmc_cd)(struct mmc_host *, unsigned long);
/* link against CONFIG_MMC=m */
mmc_cd = symbol_get(mmc_detect_change);
if (mmc_cd) {
mmc_cd(ptr, msecs_to_jiffies(200));
symbol_put(mmc_detect_change);
}
mmc_detect_change(ptr, msecs_to_jiffies(200));
msleep(100); /* debounce */
if (irq == PB1200_SD1_INSERT_INT)

10
arch/mips/alchemy/devboards/db1300.c
View File

@ -17,7 +17,6 @@
#include <linux/interrupt.h>
#include <linux/ata_platform.h>
#include <linux/mmc/host.h>
#include <linux/module.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/platnand.h>
#include <linux/platform_device.h>
@ -459,14 +458,7 @@ static irqreturn_t db1300_mmc_cd(int irq, void *ptr)
static irqreturn_t db1300_mmc_cdfn(int irq, void *ptr)
{
void (*mmc_cd)(struct mmc_host *, unsigned long);
/* link against CONFIG_MMC=m. We can only be called once MMC core has
* initialized the controller, so symbol_get() should always succeed.
*/
mmc_cd = symbol_get(mmc_detect_change);
mmc_cd(ptr, msecs_to_jiffies(200));
symbol_put(mmc_detect_change);
mmc_detect_change(ptr, msecs_to_jiffies(200));
msleep(100); /* debounce */
if (irq == DB1300_SD1_INSERT_INT)

5
drivers/mmc/host/Kconfig
View File

@ -528,11 +528,12 @@ config MMC_ALCOR
of Alcor Micro PCI-E card reader
config MMC_AU1X
tristate "Alchemy AU1XX0 MMC Card Interface support"
bool "Alchemy AU1XX0 MMC Card Interface support"
depends on MIPS_ALCHEMY
depends on MMC=y
help
This selects the AMD Alchemy(R) Multimedia card interface.
If you have a Alchemy platform with a MMC slot, say Y or M here.
If you have a Alchemy platform with a MMC slot, say Y here.
If unsure, say N.