diff options
Diffstat (limited to 'drivers/gpu/drm/msm/dp/dp_utils.c')
| -rw-r--r-- | drivers/gpu/drm/msm/dp/dp_utils.c | 28 |
1 files changed, 10 insertions, 18 deletions
diff --git a/drivers/gpu/drm/msm/dp/dp_utils.c b/drivers/gpu/drm/msm/dp/dp_utils.c index da9207caf72d..4a5ebb0c33b8 100644 --- a/drivers/gpu/drm/msm/dp/dp_utils.c +++ b/drivers/gpu/drm/msm/dp/dp_utils.c @@ -9,7 +9,7 @@ #define DP_SDP_HEADER_SIZE 8 -u8 dp_utils_get_g0_value(u8 data) +u8 msm_dp_utils_get_g0_value(u8 data) { u8 c[4]; u8 g[4]; @@ -30,7 +30,7 @@ u8 dp_utils_get_g0_value(u8 data) return ret_data; } -u8 dp_utils_get_g1_value(u8 data) +u8 msm_dp_utils_get_g1_value(u8 data) { u8 c[4]; u8 g[4]; @@ -51,7 +51,7 @@ u8 dp_utils_get_g1_value(u8 data) return ret_data; } -u8 dp_utils_calculate_parity(u32 data) +u8 msm_dp_utils_calculate_parity(u32 data) { u8 x0 = 0; u8 x1 = 0; @@ -65,8 +65,8 @@ u8 dp_utils_calculate_parity(u32 data) iData = (data >> i * 4) & 0xF; ci = iData ^ x1; - x1 = x0 ^ dp_utils_get_g1_value(ci); - x0 = dp_utils_get_g0_value(ci); + x1 = x0 ^ msm_dp_utils_get_g1_value(ci); + x0 = msm_dp_utils_get_g0_value(ci); } parity_byte = x1 | (x0 << 4); @@ -74,23 +74,15 @@ u8 dp_utils_calculate_parity(u32 data) return parity_byte; } -ssize_t dp_utils_pack_sdp_header(struct dp_sdp_header *sdp_header, u32 *header_buff) +void msm_dp_utils_pack_sdp_header(struct dp_sdp_header *sdp_header, u32 header_buff[2]) { - size_t length; - - length = sizeof(header_buff); - if (length < DP_SDP_HEADER_SIZE) - return -ENOSPC; - header_buff[0] = FIELD_PREP(HEADER_0_MASK, sdp_header->HB0) | - FIELD_PREP(PARITY_0_MASK, dp_utils_calculate_parity(sdp_header->HB0)) | + FIELD_PREP(PARITY_0_MASK, msm_dp_utils_calculate_parity(sdp_header->HB0)) | FIELD_PREP(HEADER_1_MASK, sdp_header->HB1) | - FIELD_PREP(PARITY_1_MASK, dp_utils_calculate_parity(sdp_header->HB1)); + FIELD_PREP(PARITY_1_MASK, msm_dp_utils_calculate_parity(sdp_header->HB1)); header_buff[1] = FIELD_PREP(HEADER_2_MASK, sdp_header->HB2) | - FIELD_PREP(PARITY_2_MASK, dp_utils_calculate_parity(sdp_header->HB2)) | + FIELD_PREP(PARITY_2_MASK, msm_dp_utils_calculate_parity(sdp_header->HB2)) | FIELD_PREP(HEADER_3_MASK, sdp_header->HB3) | - FIELD_PREP(PARITY_3_MASK, dp_utils_calculate_parity(sdp_header->HB3)); - - return length; + FIELD_PREP(PARITY_3_MASK, msm_dp_utils_calculate_parity(sdp_header->HB3)); } |