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kernel-fxtec-pro1x/drivers
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Trent Piepho c680dd6038 V4L/DVB (5502): Sn9c102: more efficient register writing code 
There were many places in the driver which had long sequences of constant
register initializations.  These were done with one function call per
register.  The register address and value were immediate values in the
function calls.
This is very inefficient, as each register and value take twice the space
when they are code, as each includes a push instruction to put it on
the stack.  There there is the overhead, both size and time, for a
function call for each register.  It's also quite a few lines of C code
to do this.
The patch creates a function that writes multiple registers from a list,
and a macro that makes it easy to construct a such a list as a const
static local to send to the function.
This gets rid of quite a bit of C code, and shrinks the driver by around
8k, while at the same time being more efficient.
Acked-by: Luca Risolia <luca.risolia@studio.unibo.it>

Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:45:27 -03:00
..
acorn [ARM] Acorn: move the i2c bus driver into drivers/i2c 2007-03-04 20:40:50 +00:00
acpi acpi-thermal: fix mod_timer() interval 2007-04-24 08:23:08 -07:00
amba
ata pata_sis: Fix oops on boot 2007-04-19 19:20:52 -04:00
atm [ATM]: Use mutex instead of binary semaphore in FORE Systems 200E-series driver 2007-04-26 01:41:49 -07:00
auxdisplay
base [PATCH] PM: use kobject_name() to access kobject names 2007-04-11 15:39:39 -07:00
block [SK_BUFF]: Introduce skb_reset_network_header(skb) 2007-04-25 22:24:46 -07:00
bluetooth [SK_BUFF]: Introduce skb_copy_from_linear_data{_offset} 2007-04-25 22:28:23 -07:00
cdrom [PATCH] Fix soft lockup with iSeries viocd driver 2007-03-05 07:57:51 -08:00
char [NET]: random functions can use nsec resolution instead of usec 2007-04-25 22:28:25 -07:00
clocksource [PATCH] correct slow acpi_pm rating 2007-03-27 09:05:15 -07:00
connector [NETLINK]: Switch cb_lock spinlock to mutex and allow to override it 2007-04-25 22:29:03 -07:00
cpufreq [PATCH] Fix maxcpus=1 trigerring BUG() in cpufreq 2007-03-27 08:55:56 -07:00
crypto [PATCH] geode-aes: use unsigned long for spin_lock_irqsave 2007-03-06 09:30:25 -08:00
dio
dma [PATCH] rm pointless dmaengine exports 2007-03-16 19:25:03 -07:00
edac
eisa [PATCH] drivers/eisa/pci_eisa.c:pci_eisa_init() should be init 2007-03-27 09:05:15 -07:00
fc4
firmware
hid HID: Do not discard truncated input reports 2007-04-05 16:06:30 +02:00
hwmon hwmon/w83627ehf: Don't redefine REGION_OFFSET 2007-04-24 08:23:08 -07:00
i2c Minor bug fixes to i2c-pasemi 2007-04-17 16:36:28 -07:00
ide ide/Kconfig: add missing range check for IDE_MAX_HWIFS 2007-04-20 22:16:58 +02:00
ieee1394 [SK_BUFF]: Introduce ip_hdr(), remove skb->nh.iph 2007-04-25 22:25:10 -07:00
infiniband Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband 2007-04-27 09:39:27 -07:00
input [PATCH] Input: ucb1400 - set up driver's name to show in sysfs 2007-04-10 17:26:33 -07:00
isdn [SK_BUFF]: Introduce skb_copy_to_linear_data{_offset} 2007-04-25 22:28:29 -07:00
kvm KVM: Fix off-by-one when writing to a nonpae guest pde 2007-04-19 18:39:26 +03:00
leds
macintosh drivers/macintosh/smu.c: fix locking snafu 2007-04-17 16:36:27 -07:00
mca
md [PATCH] md: fix calculation for size of filemap_attr array in md/bitmap 2007-04-12 15:31:42 -07:00
media V4L/DVB (5502): Sn9c102: more efficient register writing code 2007-04-27 15:45:27 -03:00
message [SK_BUFF]: Introduce skb_copy_from_linear_data{_offset} 2007-04-25 22:28:23 -07:00
mfd [PATCH] drivers/mfd/sm501.c: fix an off-by-one 2007-04-02 10:06:08 -07:00
misc asus-laptop: make code static 2007-03-09 21:06:40 -05:00
mmc [ARM] 4256/1: i.MX/MX1 SDHC fix/workaround of SD card recognition problems 2007-03-12 16:49:37 +00:00
mtd Merge branch 'for-linus' of git://git.infradead.org/ubi-2.6 2007-04-27 10:42:35 -07:00
net Merge branch 'e1000-fixes' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6 2007-04-27 10:14:53 -07:00
nubus
oprofile [PATCH] oprofile: fix potential deadlock on oprofilefs_lock 2007-03-28 13:58:02 -07:00
parisc [NET]: Inline net_device_stats 2007-04-25 22:28:26 -07:00
parport [PARPORT] SUNBPP: Fix OOPS when debugging is enabled. 2007-04-23 23:33:17 -07:00
pci Revert "adjust legacy IDE resource setting (v2)" 2007-04-23 23:19:36 +02:00
pcmcia [PATCH] omap_cf: oops-on-suspend fix 2007-04-08 19:47:55 -07:00
pnp [PATCH] Correctly report PnP 64bit resources 2007-04-02 10:06:08 -07:00
ps3 [PATCH] C99 initializers, proper use of const in drivers/ps3 2007-03-14 15:27:50 -07:00
rapidio
rtc [PATCH] rtc-cmos lockdep fix, irq updates 2007-04-02 10:06:09 -07:00
s390 Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2007-04-27 09:26:46 -07:00
sbus [OPENPROM]: Use pci_device_to_OF_node(). 2007-04-26 01:54:59 -07:00
scsi Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6 2007-04-27 09:29:04 -07:00
serial [SPARC/64] constify of_get_property return: drivers 2007-04-26 01:54:27 -07:00
sh
sn
spi spi: fix use of set_cs in spi_s3c24xx driver 2007-04-17 16:36:27 -07:00
tc [PATCH] Fix build error on zs serial driver 2007-04-04 21:12:47 -07:00
telephony
usb [SK_BUFF]: Introduce skb_copy_to_linear_data{_offset} 2007-04-25 22:28:29 -07:00
video [IGAFB]: Use pci_device_to_OF_node() on sparc. 2007-04-26 01:55:03 -07:00
w1
zorro
Kconfig
Makefile IB: Remove reference to obsolete CONFIG_IPATH_CORE 2007-04-18 20:20:53 -07:00