From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alex Deucher Subject: [PATCH 2/2] drm/amdgpu/atom: Send out the full AUX address Date: Mon, 31 Aug 2015 11:19:03 -0400 Message-ID: <1441034343-20809-2-git-send-email-alexander.deucher@amd.com> References: <1441034343-20809-1-git-send-email-alexander.deucher@amd.com> Return-path: In-Reply-To: <1441034343-20809-1-git-send-email-alexander.deucher@amd.com> Sender: stable-owner@vger.kernel.org To: dri-devel@lists.freedesktop.org Cc: Alex Deucher , stable@vger.kernel.org List-Id: dri-devel@lists.freedesktop.org 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@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