[PATCH 2/2] drm/amdgpu/atom: Send out the full AUX address
Patch is Reviewed-by: Jammy Zhou I cannot find the first patch in my mailbox, did I miss something? Regards, Jammy -Original Message- From: dri-devel [mailto:dri-devel-boun...@lists.freedesktop.org] On Behalf Of Alex Deucher Sent: Monday, August 31, 2015 11:19 PM To: dri-devel at lists.freedesktop.org Cc: Deucher, Alexander; stable at vger.kernel.org Subject: [PATCH 2/2] drm/amdgpu/atom: Send out the full AUX address AUX addresses are 20 bits long. Send out the entire address instead of just the low 16 bits. Port of: drm/radeon/atom: Send out the full AUX address to amdgpu Signed-off-by: Alex Deucher Cc: stable at vger.kernel.org --- drivers/gpu/drm/amd/amdgpu/atombios_dp.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/atombios_dp.c b/drivers/gpu/drm/amd/amdgpu/atombios_dp.c index 9ba0a7d..92b6aca 100644 --- a/drivers/gpu/drm/amd/amdgpu/atombios_dp.c +++ b/drivers/gpu/drm/amd/amdgpu/atombios_dp.c @@ -139,7 +139,8 @@ amdgpu_atombios_dp_aux_transfer(struct drm_dp_aux *aux, struct drm_dp_aux_msg *m tx_buf[0] = msg->address & 0xff; tx_buf[1] = msg->address >> 8; - tx_buf[2] = msg->request << 4; + tx_buf[2] = (msg->request << 4) | + ((msg->address >> 16) & 0xf); tx_buf[3] = msg->size ? (msg->size - 1) : 0; switch (msg->request & ~DP_AUX_I2C_MOT) { -- 1.8.3.1 ___ dri-devel mailing list dri-devel at lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/dri-devel
[PATCH 2/2] drm/amdgpu/atom: Send out the full AUX address
On Mon, Aug 31, 2015 at 11:44 PM, Zhou, Jammy wrote: > Patch is Reviewed-by: Jammy Zhou > > I cannot find the first patch in my mailbox, did I miss something? It was a similar fix for the non-atom aux code in radeon: http://lists.freedesktop.org/archives/dri-devel/2015-August/089539.html Alex > > Regards, > Jammy > > -Original Message- > From: dri-devel [mailto:dri-devel-bounces at lists.freedesktop.org] On Behalf > Of Alex Deucher > Sent: Monday, August 31, 2015 11:19 PM > To: dri-devel at lists.freedesktop.org > Cc: Deucher, Alexander; stable at vger.kernel.org > Subject: [PATCH 2/2] drm/amdgpu/atom: Send out the full AUX address > > AUX addresses are 20 bits long. Send out the entire address instead of just > the low 16 bits. > > Port of: > drm/radeon/atom: Send out the full AUX address to amdgpu > > Signed-off-by: Alex Deucher > Cc: stable at vger.kernel.org > --- > drivers/gpu/drm/amd/amdgpu/atombios_dp.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/amd/amdgpu/atombios_dp.c > b/drivers/gpu/drm/amd/amdgpu/atombios_dp.c > index 9ba0a7d..92b6aca 100644 > --- a/drivers/gpu/drm/amd/amdgpu/atombios_dp.c > +++ b/drivers/gpu/drm/amd/amdgpu/atombios_dp.c > @@ -139,7 +139,8 @@ amdgpu_atombios_dp_aux_transfer(struct drm_dp_aux *aux, > struct drm_dp_aux_msg *m > > tx_buf[0] = msg->address & 0xff; > tx_buf[1] = msg->address >> 8; > - tx_buf[2] = msg->request << 4; > + tx_buf[2] = (msg->request << 4) | > + ((msg->address >> 16) & 0xf); > tx_buf[3] = msg->size ? (msg->size - 1) : 0; > > switch (msg->request & ~DP_AUX_I2C_MOT) { > -- > 1.8.3.1 > > ___ > dri-devel mailing list > dri-devel at lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/dri-devel
[PATCH 2/2] drm/amdgpu/atom: Send out the full AUX address
AUX addresses are 20 bits long. Send out the entire address instead of just the low 16 bits. Port of: drm/radeon/atom: Send out the full AUX address to amdgpu Signed-off-by: Alex Deucher Cc: stable at vger.kernel.org --- drivers/gpu/drm/amd/amdgpu/atombios_dp.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/atombios_dp.c b/drivers/gpu/drm/amd/amdgpu/atombios_dp.c index 9ba0a7d..92b6aca 100644 --- a/drivers/gpu/drm/amd/amdgpu/atombios_dp.c +++ b/drivers/gpu/drm/amd/amdgpu/atombios_dp.c @@ -139,7 +139,8 @@ amdgpu_atombios_dp_aux_transfer(struct drm_dp_aux *aux, struct drm_dp_aux_msg *m tx_buf[0] = msg->address & 0xff; tx_buf[1] = msg->address >> 8; - tx_buf[2] = msg->request << 4; + tx_buf[2] = (msg->request << 4) | + ((msg->address >> 16) & 0xf); tx_buf[3] = msg->size ? (msg->size - 1) : 0; switch (msg->request & ~DP_AUX_I2C_MOT) { -- 1.8.3.1