drm/radeon/r600_cs: Fix some doc-rot and supply missing function param docs

Fixes the following W=1 kernel build warning(s):

 drivers/gpu/drm/radeon/r600_cs.c:793: warning: Function parameter or member 'p' not described in 'r600_cs_packet_parse_vline'
 drivers/gpu/drm/radeon/r600_cs.c:793: warning: Excess function parameter 'parser' description in 'r600_cs_packet_parse_vline'
 drivers/gpu/drm/radeon/r600_cs.c:826: warning: Function parameter or member 'p' not described in 'r600_cs_common_vline_parse'
 drivers/gpu/drm/radeon/r600_cs.c:826: warning: Excess function parameter 'parser' description in 'r600_cs_common_vline_parse'
 drivers/gpu/drm/radeon/r600_cs.c:968: warning: Function parameter or member 'p' not described in 'r600_cs_check_reg'
 drivers/gpu/drm/radeon/r600_cs.c:968: warning: Excess function parameter 'parser' description in 'r600_cs_check_reg'
 drivers/gpu/drm/radeon/r600_cs.c:1473: warning: Function parameter or member 'base_offset' not described in 'r600_check_texture_resource'
 drivers/gpu/drm/radeon/r600_cs.c:1473: warning: Function parameter or member 'mip_offset' not described in 'r600_check_texture_resource'
 drivers/gpu/drm/radeon/r600_cs.c:1473: warning: Function parameter or member 'tiling_flags' not described in 'r600_check_texture_resource'

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: amd-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/radeon/r600_cs.c

@@ -782,7 +782,7 @@ static int r600_cs_track_check(struct radeon_cs_parser *p)
 
 /**
  * r600_cs_packet_parse_vline() - parse userspace VLINE packet
- * @parser:		parser structure holding parsing context.
+ * @p:		parser structure holding parsing context.
  *
  * This is an R600-specific function for parsing VLINE packets.
  * Real work is done by r600_cs_common_vline_parse function.
@@ -801,7 +801,7 @@ static int r600_cs_packet_parse_vline(struct radeon_cs_parser *p)
 
 /**
  * r600_cs_common_vline_parse() - common vline parser
- * @parser:		parser structure holding parsing context.
+ * @p:			parser structure holding parsing context.
  * @vline_start_end:    table of vline_start_end registers
  * @vline_status:       table of vline_status registers
  *
@@ -956,7 +956,7 @@ static int r600_cs_parse_packet0(struct radeon_cs_parser *p,
 
 /**
  * r600_cs_check_reg() - check if register is authorized or not
- * @parser: parser structure holding parsing context
+ * @p: parser structure holding parsing context
  * @reg: register we are testing
  * @idx: index into the cs buffer
  *
@@ -1460,6 +1460,9 @@ static void r600_texture_size(unsigned nfaces, unsigned blevel, unsigned llevel,
  * @idx: index into the cs buffer
  * @texture: texture's bo structure
  * @mipmap: mipmap's bo structure
+ * @base_offset: base offset (used for error checking)
+ * @mip_offset: mip offset (used for error checking)
+ * @tiling_flags: tiling flags
  *
  * This function will check that the resource has valid field and that
  * the texture and mipmap bo object are big enough to cover this resource.