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| author | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2014-02-03 21:32:45 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2014-02-03 21:32:45 +0400 |
| commit | c29b8f3149f2916e98fc3b8d6c1df2137d003979 (patch) | |
| tree | af6b4e876c732daaafb59781836bfce9715d21c2 /drivers/gpu/drm/radeon/atombios_i2c.c | |
| parent | 587d1b06e07b4a079453c74ba9edf17d21931049 (diff) | |
| parent | 38dbfb59d1175ef458d006556061adeaa8751b72 (diff) | |
| download | linux-c29b8f3149f2916e98fc3b8d6c1df2137d003979.tar.xz | |
Merge tag 'v3.14-rc1' into patchwork
Linus 3.14-rc1
* tag 'v3.14-rc1': (11781 commits)
Linus 3.14-rc1
hpfs: optimize quad buffer loading
hpfs: remember free space
parisc: add flexible mmap memory layout support
parisc: Make EWOULDBLOCK be equal to EAGAIN on parisc
parisc: convert uapi/asm/stat.h to use native types only
parisc: wire up sched_setattr and sched_getattr
parisc: fix cache-flushing
parisc/sti_console: prefer Linux fonts over built-in ROM fonts
hwmon: Fix SENSORS_TMP102 dependencies to eliminate build errors
hwmon: Fix SENSORS_LM75 dependencies to eliminate build errors
tools/power turbostat: introduce -s to dump counters
tools/power turbostat: remove unused command line option
afs: proc cells and rootcell are writeable
tile: remove compat_sys_lookup_dcookie declaration to fix compile error
Revert "PCI: Remove from bus_list and release resources in pci_release_dev()"
ARM: multi_v7_defconfig: remove redundant entries and re-enable TI_EDMA
ARM: multi_v7_defconfig: add mvebu drivers
clocksource: kona: Add basic use of external clock
drivers: bus: fix CCI driver kcalloc call parameters swap
...
Diffstat (limited to 'drivers/gpu/drm/radeon/atombios_i2c.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/atombios_i2c.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/drivers/gpu/drm/radeon/atombios_i2c.c b/drivers/gpu/drm/radeon/atombios_i2c.c index 0652ee0a2098..b5162c3b6111 100644 --- a/drivers/gpu/drm/radeon/atombios_i2c.c +++ b/drivers/gpu/drm/radeon/atombios_i2c.c @@ -27,8 +27,6 @@ #include "radeon.h" #include "atom.h" -extern void radeon_atom_copy_swap(u8 *dst, u8 *src, u8 num_bytes, bool to_le); - #define TARGET_HW_I2C_CLOCK 50 /* these are a limitation of ProcessI2cChannelTransaction not the hw */ @@ -44,7 +42,7 @@ static int radeon_process_i2c_ch(struct radeon_i2c_chan *chan, PROCESS_I2C_CHANNEL_TRANSACTION_PS_ALLOCATION args; int index = GetIndexIntoMasterTable(COMMAND, ProcessI2cChannelTransaction); unsigned char *base; - u16 out; + u16 out = cpu_to_le16(0); memset(&args, 0, sizeof(args)); @@ -55,11 +53,14 @@ static int radeon_process_i2c_ch(struct radeon_i2c_chan *chan, DRM_ERROR("hw i2c: tried to write too many bytes (%d vs 3)\n", num); return -EINVAL; } - args.ucRegIndex = buf[0]; - if (num > 1) { + if (buf == NULL) + args.ucRegIndex = 0; + else + args.ucRegIndex = buf[0]; + if (num) num--; + if (num) memcpy(&out, &buf[1], num); - } args.lpI2CDataOut = cpu_to_le16(out); } else { if (num > ATOM_MAX_HW_I2C_READ) { @@ -96,14 +97,14 @@ int radeon_atom_hw_i2c_xfer(struct i2c_adapter *i2c_adap, struct radeon_i2c_chan *i2c = i2c_get_adapdata(i2c_adap); struct i2c_msg *p; int i, remaining, current_count, buffer_offset, max_bytes, ret; - u8 buf = 0, flags; + u8 flags; /* check for bus probe */ p = &msgs[0]; if ((num == 1) && (p->len == 0)) { ret = radeon_process_i2c_ch(i2c, p->addr, HW_I2C_WRITE, - &buf, 1); + NULL, 0); if (ret) return ret; else |