diff options
Diffstat (limited to 'linux-core/intel_sdvo.c')
| -rw-r--r-- | linux-core/intel_sdvo.c | 60 |
1 files changed, 28 insertions, 32 deletions
diff --git a/linux-core/intel_sdvo.c b/linux-core/intel_sdvo.c index 6f592f8a..edc27016 100644 --- a/linux-core/intel_sdvo.c +++ b/linux-core/intel_sdvo.c @@ -254,30 +254,38 @@ static u8 intel_sdvo_read_response(struct drm_output *output, void *response, struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv; int i; u8 status; + u8 retry = 50; - /* Read the command response */ - for (i = 0; i < response_len; i++) { - intel_sdvo_read_byte(output, SDVO_I2C_RETURN_0 + i, + while (retry--) { + /* Read the command response */ + for (i = 0; i < response_len; i++) { + intel_sdvo_read_byte(output, SDVO_I2C_RETURN_0 + i, &((u8 *)response)[i]); - } + } - /* read the return status */ - intel_sdvo_read_byte(output, SDVO_I2C_CMD_STATUS, &status); + /* read the return status */ + intel_sdvo_read_byte(output, SDVO_I2C_CMD_STATUS, &status); + + if (1) { + printk("%s: R: ", SDVO_NAME(sdvo_priv)); + for (i = 0; i < response_len; i++) + printk("%02X ", ((u8 *)response)[i]); + for (; i < 8; i++) + printk(" "); + if (status <= SDVO_CMD_STATUS_SCALING_NOT_SUPP) + printk("(%s)", cmd_status_names[status]); + else + printk("(??? %d)", status); + printk("\n"); + } - if (1) { - printk("%s: R: ", SDVO_NAME(sdvo_priv)); - for (i = 0; i < response_len; i++) - printk("%02X ", ((u8 *)response)[i]); - for (; i < 8; i++) - printk(" "); - if (status <= SDVO_CMD_STATUS_SCALING_NOT_SUPP) - printk("(%s)", cmd_status_names[status]); - else - printk("(??? %d)", status); - printk("\n"); - } - return status; + if (status != SDVO_CMD_STATUS_PENDING) + return status; + + mdelay(50); + } + return SDVO_CMD_STATUS_SUCCESS; } int intel_sdvo_get_pixel_multiplier(struct drm_display_mode *mode) @@ -870,21 +878,9 @@ static enum drm_output_status intel_sdvo_detect(struct drm_output *output) { u8 response[2]; u8 status; - u8 retry = 50; intel_sdvo_write_cmd(output, SDVO_CMD_GET_ATTACHED_DISPLAYS, NULL, 0); - - while (retry--) { - status = intel_sdvo_read_response(output, &response, 2); - - if (status == SDVO_CMD_STATUS_SUCCESS) - break; - - if (status != SDVO_CMD_STATUS_PENDING) - return output_status_unknown; - - mdelay(50); - } + status = intel_sdvo_read_response(output, &response, 2); DRM_DEBUG("SDVO response %d %d\n", response[0], response[1]); if ((response[0] != 0) || (response[1] != 0)) |