From 4543eda52113d1e2cc0e9bf416f79597e6ef1ec7 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 7 Aug 2013 19:34:53 -0400 Subject: drm/radeon: fix endian bugs in hw i2c atom routines Need to swap the data fetched over i2c properly. This is the same fix as the endian fix for aux channel transactions. Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/radeon/atombios_i2c.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers/gpu/drm/radeon/atombios_i2c.c') diff --git a/drivers/gpu/drm/radeon/atombios_i2c.c b/drivers/gpu/drm/radeon/atombios_i2c.c index 082338df708..2ca389d1925 100644 --- a/drivers/gpu/drm/radeon/atombios_i2c.c +++ b/drivers/gpu/drm/radeon/atombios_i2c.c @@ -27,6 +27,8 @@ #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 */ @@ -77,7 +79,7 @@ static int radeon_process_i2c_ch(struct radeon_i2c_chan *chan, } if (!(flags & HW_I2C_WRITE)) - memcpy(buf, base, num); + radeon_atom_copy_swap(buf, base, num, false); return 0; } -- cgit v1.2.3