diff options
| author | Bastian Hecht <hechtb@googlemail.com> | 2012-03-18 15:13:20 +0100 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2012-03-27 01:53:34 +0200 |
| commit | cfe781946dac7f5ff42e23cd7054c75e7201fbdc (patch) | |
| tree | 75d102cf44ab8d2fe190a67594fee88790005b88 /include | |
| parent | mtd: do not use plain 0 as NULL (diff) | |
| download | linux-cfe781946dac7f5ff42e23cd7054c75e7201fbdc.tar.xz linux-cfe781946dac7f5ff42e23cd7054c75e7201fbdc.zip | |
mtd: sh_flctl: Add power management with QoS request
Adds power management code with fine granularity. Every flash control
command is enclosed by runtime_put()/get()s. To make sure that no
overhead is generated by too frequent power state switches, a quality of
service request is issued.
Signed-off-by: Bastian Hecht <hechtb@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mtd/sh_flctl.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/mtd/sh_flctl.h b/include/linux/mtd/sh_flctl.h index 8bcf299cb9bf..a38e1fa8af01 100644 --- a/include/linux/mtd/sh_flctl.h +++ b/include/linux/mtd/sh_flctl.h @@ -23,6 +23,7 @@ #include <linux/mtd/mtd.h> #include <linux/mtd/nand.h> #include <linux/mtd/partitions.h> +#include <linux/pm_qos.h> /* FLCTL registers */ #define FLCMNCR(f) (f->reg + 0x0) @@ -131,6 +132,7 @@ struct sh_flctl { struct mtd_info mtd; struct nand_chip chip; struct platform_device *pdev; + struct dev_pm_qos_request pm_qos; void __iomem *reg; uint8_t done_buff[2048 + 64]; /* max size 2048 + 64 */ @@ -149,6 +151,7 @@ struct sh_flctl { unsigned page_size:1; /* NAND page size (0 = 512, 1 = 2048) */ unsigned hwecc:1; /* Hardware ECC (0 = disabled, 1 = enabled) */ unsigned holden:1; /* Hardware has FLHOLDCR and HOLDEN is set */ + unsigned qos_request:1; /* QoS request to prevent deep power shutdown */ }; struct sh_flctl_platform_data { |