The patch titled
ARM: OMAP: mmc-twl4030: add context loss counter support
has been removed from the -mm tree. Its filename was
arm-omap-mmc-twl4030-add-context-loss-counter-support.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: ARM: OMAP: mmc-twl4030: add context loss counter support
From: Denis Karpov <[email protected]>
PM dynamic OFF state results in context loss. That is, the host
controller has been powered off at some point, which means the registers
have been reset. The driver must detect when this happens, and restore
the context. This patch adds the means to detect context loss.
Note, the PM side is not yet implemented.
Signed-off-by: Denis Karpov <[email protected]>
Signed-off-by: Adrian Hunter <[email protected]>
Acked-by: Matt Fleming <[email protected]>
Cc: Ian Molton <[email protected]>
Cc: "Roberto A. Foglietta" <[email protected]>
Cc: Jarkko Lavinen <[email protected]>
Cc: Denis Karpov <[email protected]>
Cc: Pierre Ossman <[email protected]>
Cc: Philip Langdale <[email protected]>
Cc: "Madhusudhan" <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
---
arch/arm/mach-omap2/mmc-twl4030.c | 15 +++++++++++++++
arch/arm/plat-omap/include/mach/mmc.h | 3 +++
2 files changed, 18 insertions(+)
diff -puN
arch/arm/mach-omap2/mmc-twl4030.c~arm-omap-mmc-twl4030-add-context-loss-counter-support
arch/arm/mach-omap2/mmc-twl4030.c
---
a/arch/arm/mach-omap2/mmc-twl4030.c~arm-omap-mmc-twl4030-add-context-loss-counter-support
+++ a/arch/arm/mach-omap2/mmc-twl4030.c
@@ -198,6 +198,18 @@ static int twl_mmc_resume(struct device
#define twl_mmc_resume NULL
#endif
+#if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_PM)
+
+static int twl4030_mmc_get_context_loss(struct device *dev)
+{
+ /* FIXME: PM DPS not implemented yet */
+ return 0;
+}
+
+#else
+#define twl4030_mmc_get_context_loss NULL
+#endif
+
static int twl_mmc1_set_power(struct device *dev, int slot, int power_on,
int vdd)
{
@@ -390,6 +402,9 @@ void __init twl4030_mmc_init(struct twl4
} else
mmc->slots[0].switch_pin = -EINVAL;
+ mmc->get_context_loss_count =
+ twl4030_mmc_get_context_loss;
+
/* write protect normally uses an OMAP gpio */
if (gpio_is_valid(c->gpio_wp)) {
gpio_request(c->gpio_wp, "mmc_wp");
diff -puN
arch/arm/plat-omap/include/mach/mmc.h~arm-omap-mmc-twl4030-add-context-loss-counter-support
arch/arm/plat-omap/include/mach/mmc.h
---
a/arch/arm/plat-omap/include/mach/mmc.h~arm-omap-mmc-twl4030-add-context-loss-counter-support
+++ a/arch/arm/plat-omap/include/mach/mmc.h
@@ -59,6 +59,9 @@ struct omap_mmc_platform_data {
int (*suspend)(struct device *dev, int slot);
int (*resume)(struct device *dev, int slot);
+ /* Return context loss count due to PM states changing */
+ int (*get_context_loss_count)(struct device *dev);
+
u64 dma_mask;
struct omap_mmc_slot_data {
_
Patches currently in -mm which might be from [email protected] are
origin.patch
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