[PATCH v5 8/8] MTD: physmap: let set_vpp() pass a platform_device instead of a map_info

Marc Zyngier
2011-05-16T14:59:26Z

The set_vpp() method provided by physmap passes a map_info back to
the platform code, which has little relevance as far as the platform
is concerned (this parameter is completely unused).

Instead, pass the platform_device, which can be used in the pismo
driver to retrieve some important information in a nicer way, instead
of the hack that was in place.

The empty set_vpp function in board-at572d940hf_ek.c is removed, as
it serves no real purpose.

Cc: Andrew Victor <linux@maxim.org.za>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Philipp Zabel <philipp.zabel@gmail.com>
Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
---
arch/arm/mach-at91/board-at572d940hf_ek.c | 4 ---
arch/arm/mach-integrator/integrator_ap.c | 2 +-
arch/arm/mach-integrator/integrator_cp.c | 2 +-
arch/arm/mach-omap1/flash.c | 2 +-
arch/arm/mach-pxa/hx4700.c | 2 +-
arch/arm/mach-pxa/magician.c | 2 +-
arch/arm/mach-realview/core.c | 2 +-
arch/arm/mach-s3c2410/nor-simtec.c | 2 +-
arch/arm/mach-versatile/core.c | 2 +-
arch/arm/mach-vexpress/v2m.c | 2 +-
arch/arm/plat-omap/include/plat/flash.h | 2 +-
drivers/mtd/maps/physmap.c | 15 ++++++++++-
drivers/mtd/maps/pismo.c | 40 ++--------------------------
include/linux/mtd/physmap.h | 2 +-
14 files changed, 28 insertions(+), 53 deletions(-)

diff --git a/arch/arm/mach-at91/board-at572d940hf_ek.c b/arch/arm/mach-at91/board-at572d940hf_ek.c
index 3929f1c..c139799 100644
--- a/arch/arm/mach-at91/board-at572d940hf_ek.c
+++ b/arch/arm/mach-at91/board-at572d940hf_ek.c
@@ -134,14 +134,10 @@ static struct mtd_partition eb_nor_partitions[] = {
},
};

-static void nor_flash_set_vpp(struct map_info* mi, int i) {
-};
-
static struct physmap_flash_data nor_flash_data = {
.width = 4,
.parts = eb_nor_partitions,
.nr_parts = ARRAY_SIZE(eb_nor_partitions),
- .set_vpp = nor_flash_set_vpp,
};

static struct resource nor_flash_resources[] = {
diff --git a/arch/arm/mach-integrator/integrator_ap.c b/arch/arm/mach-integrator/integrator_ap.c
index 11bd49e..2aa98ee 100644
--- a/arch/arm/mach-integrator/integrator_ap.c
+++ b/arch/arm/mach-integrator/integrator_ap.c
@@ -263,7 +263,7 @@ static void ap_flash_exit(struct platform_device *dev)
}
}

-static void ap_flash_set_vpp(struct map_info *map, int on)
+static void ap_flash_set_vpp(struct platform_device *pdev, int on)
{
void __iomem *reg = on ? SC_CTRLS : SC_CTRLC;

diff --git a/arch/arm/mach-integrator/integrator_cp.c b/arch/arm/mach-integrator/integrator_cp.c
index ec9628f..b676b41 100644
--- a/arch/arm/mach-integrator/integrator_cp.c
+++ b/arch/arm/mach-integrator/integrator_cp.c
@@ -259,7 +259,7 @@ static void intcp_flash_exit(struct platform_device *dev)
writel(val, INTCP_VA_CTRL_BASE + INTCP_FLASHPROG);
}

-static void intcp_flash_set_vpp(struct map_info *map, int on)
+static void intcp_flash_set_vpp(struct platform_device *pdev, int on)
{
u32 val;

diff --git a/arch/arm/mach-omap1/flash.c b/arch/arm/mach-omap1/flash.c
index acd1616..1749cb3 100644
--- a/arch/arm/mach-omap1/flash.c
+++ b/arch/arm/mach-omap1/flash.c
@@ -13,7 +13,7 @@
#include <plat/tc.h>
#include <plat/flash.h>

-void omap1_set_vpp(struct map_info *map, int enable)
+void omap1_set_vpp(struct platform_device *pdev, int enable)
{
static int count;
u32 l;
diff --git a/arch/arm/mach-pxa/hx4700.c b/arch/arm/mach-pxa/hx4700.c
index 9cdcca5..f941a49 100644
--- a/arch/arm/mach-pxa/hx4700.c
+++ b/arch/arm/mach-pxa/hx4700.c
@@ -735,7 +735,7 @@ static struct platform_device bq24022 = {
* StrataFlash
*/

-static void hx4700_set_vpp(struct map_info *map, int vpp)
+static void hx4700_set_vpp(struct platform_device *pdev, int vpp)
{
gpio_set_value(GPIO91_HX4700_FLASH_VPEN, vpp);
}
diff --git a/arch/arm/mach-pxa/magician.c b/arch/arm/mach-pxa/magician.c
index 9984ef7..e192057 100644
--- a/arch/arm/mach-pxa/magician.c
+++ b/arch/arm/mach-pxa/magician.c
@@ -662,7 +662,7 @@ static struct pxaohci_platform_data magician_ohci_info = {
* StrataFlash
*/

-static void magician_set_vpp(struct map_info *map, int vpp)
+static void magician_set_vpp(struct platform_device *pdev, int vpp)
{
gpio_set_value(EGPIO_MAGICIAN_FLASH_VPP, vpp);
}
diff --git a/arch/arm/mach-realview/core.c b/arch/arm/mach-realview/core.c
index d3f1dde..c8ec088 100644
--- a/arch/arm/mach-realview/core.c
+++ b/arch/arm/mach-realview/core.c
@@ -77,7 +77,7 @@ void __init realview_adjust_zones(unsigned long *size, unsigned long *hole)

#define REALVIEW_FLASHCTRL (__io_address(REALVIEW_SYS_BASE) + REALVIEW_SYS_FLASH_OFFSET)

-static void realview_flash_set_vpp(struct map_info *map, int on)
+static void realview_flash_set_vpp(struct platform_device *pdev, int on)
{
u32 val;

diff --git a/arch/arm/mach-s3c2410/nor-simtec.c b/arch/arm/mach-s3c2410/nor-simtec.c
index 598d130..ad9f750 100644
--- a/arch/arm/mach-s3c2410/nor-simtec.c
+++ b/arch/arm/mach-s3c2410/nor-simtec.c
@@ -32,7 +32,7 @@

#include "nor-simtec.h"

-static void simtec_nor_vpp(struct map_info *map, int vpp)
+static void simtec_nor_vpp(struct platform_device *pdev, int vpp)
{
unsigned int val;
unsigned long flags;
diff --git a/arch/arm/mach-versatile/core.c b/arch/arm/mach-versatile/core.c
index 06f406a..335d825 100644
--- a/arch/arm/mach-versatile/core.c
+++ b/arch/arm/mach-versatile/core.c
@@ -190,7 +190,7 @@ void __init versatile_map_io(void)

#define VERSATILE_FLASHCTRL (__io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_FLASH_OFFSET)

-static void versatile_flash_set_vpp(struct map_info *map, int on)
+static void versatile_flash_set_vpp(struct platform_device *pdev, int on)
{
u32 val;

diff --git a/arch/arm/mach-vexpress/v2m.c b/arch/arm/mach-vexpress/v2m.c
index e326815..f860314 100644
--- a/arch/arm/mach-vexpress/v2m.c
+++ b/arch/arm/mach-vexpress/v2m.c
@@ -206,7 +206,7 @@ static struct platform_device v2m_usb_device = {
.dev.platform_data = &v2m_usb_config,
};

-static void v2m_flash_set_vpp(struct map_info *map, int on)
+static void v2m_flash_set_vpp(struct platform_device *pdev, int on)
{
writel(on != 0, MMIO_P2V(V2M_SYS_FLASH));
}
diff --git a/arch/arm/plat-omap/include/plat/flash.h b/arch/arm/plat-omap/include/plat/flash.h
index 3e63270..3083195 100644
--- a/arch/arm/plat-omap/include/plat/flash.h
+++ b/arch/arm/plat-omap/include/plat/flash.h
@@ -11,6 +11,6 @@

#include <linux/mtd/map.h>

-extern void omap1_set_vpp(struct map_info *map, int enable);
+extern void omap1_set_vpp(struct platform_device *pdev, int enable);

#endif
diff --git a/drivers/mtd/maps/physmap.c b/drivers/mtd/maps/physmap.c
index 49676b7..89fe8be 100644
--- a/drivers/mtd/maps/physmap.c
+++ b/drivers/mtd/maps/physmap.c
@@ -74,6 +74,18 @@ static int physmap_flash_remove(struct platform_device *dev)
return 0;
}

+static void physmap_set_vpp(struct map_info *map, int state)
+{
+ struct platform_device *pdev;
+ struct physmap_flash_data *physmap_data;
+
+ pdev = (struct platform_device *)map->map_priv_1;
+ physmap_data = pdev->dev.platform_data;
+
+ if (physmap_data->set_vpp)
+ physmap_data->set_vpp(pdev, state);
+}
+
static const char *rom_probe_types[] = {
"cfi_probe",
"jedec_probe",
@@ -134,8 +146,9 @@ static int physmap_flash_probe(struct platform_device *dev)
info->map[i].phys = dev->resource[i].start;
info->map[i].size = resource_size(&dev->resource[i]);
info->map[i].bankwidth = physmap_data->width;
- info->map[i].set_vpp = physmap_data->set_vpp;
+ info->map[i].set_vpp = physmap_set_vpp;
info->map[i].pfow_base = physmap_data->pfow_base;
+ info->map[i].map_priv_1 = (unsigned long)dev;

info->map[i].virt = devm_ioremap(&dev->dev, info->map[i].phys,
info->map[i].size);
diff --git a/drivers/mtd/maps/pismo.c b/drivers/mtd/maps/pismo.c
index f4ce273..65bd1cd 100644
--- a/drivers/mtd/maps/pismo.c
+++ b/drivers/mtd/maps/pismo.c
@@ -50,39 +50,13 @@ struct pismo_data {
struct platform_device *dev[PISMO_NUM_CS];
};

-/* FIXME: set_vpp could do with a better calling convention */
-static struct pismo_data *vpp_pismo;
-static DEFINE_MUTEX(pismo_mutex);
-
-static int pismo_setvpp_probe_fix(struct pismo_data *pismo)
+static void pismo_set_vpp(struct platform_device *pdev, int on)
{
- mutex_lock(&pismo_mutex);
- if (vpp_pismo) {
- mutex_unlock(&pismo_mutex);
- kfree(pismo);
- return -EBUSY;
- }
- vpp_pismo = pismo;
- mutex_unlock(&pismo_mutex);
- return 0;
-}
-
-static void pismo_setvpp_remove_fix(struct pismo_data *pismo)
-{
- mutex_lock(&pismo_mutex);
- if (vpp_pismo == pismo)
- vpp_pismo = NULL;
- mutex_unlock(&pismo_mutex);
-}
-
-static void pismo_set_vpp(struct map_info *map, int on)
-{
- struct pismo_data *pismo = vpp_pismo;
+ struct i2c_client *client = to_i2c_client(pdev->dev.parent);
+ struct pismo_data *pismo = i2c_get_clientdata(client);

pismo->vpp(pismo->vpp_data, on);
}
-/* end of hack */
-

static unsigned int __devinit pismo_width_to_bytes(unsigned int width)
{
@@ -231,9 +205,6 @@ static int __devexit pismo_remove(struct i2c_client *client)
for (i = 0; i < ARRAY_SIZE(pismo->dev); i++)
platform_device_unregister(pismo->dev[i]);

- /* FIXME: set_vpp needs saner arguments */
- pismo_setvpp_remove_fix(pismo);
-
kfree(pismo);

return 0;
@@ -257,11 +228,6 @@ static int __devinit pismo_probe(struct i2c_client *client,
if (!pismo)
return -ENOMEM;

- /* FIXME: set_vpp needs saner arguments */
- ret = pismo_setvpp_probe_fix(pismo);
- if (ret)
- return ret;
-
pismo->client = client;
if (pdata) {
pismo->vpp = pdata->set_vpp;
diff --git a/include/linux/mtd/physmap.h b/include/linux/mtd/physmap.h
index d37cca0..49b9590 100644
--- a/include/linux/mtd/physmap.h
+++ b/include/linux/mtd/physmap.h
@@ -24,7 +24,7 @@ struct physmap_flash_data {
unsigned int width;
int (*init)(struct platform_device *);
void (*exit)(struct platform_device *);
- void (*set_vpp)(struct map_info *, int);
+ void (*set_vpp)(struct platform_device *, int);
unsigned int nr_parts;
unsigned int pfow_base;
char *probe_type;
--
1.7.0.4