From: Hans Verkuil Date: Fri, 4 Oct 2013 14:01:51 +0000 (-0300) Subject: [media] cx25821: fix sparse warnings X-Git-Tag: v3.13-rc1~47^2~59 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=60b3b4d2de93f0bfa59dbd3104f2f40afd630d1c;p=linux.git [media] cx25821: fix sparse warnings drivers/media/pci/cx25821/cx25821-cards.c:49:20: warning: symbol 'cx25821_bcount' was not declared. Should it be static? drivers/media/pci/cx25821/cx25821-video-upstream.c:162:33: warning: incorrect type in assignment (different base types) drivers/media/pci/cx25821/cx25821-video-upstream.c:163:33: warning: incorrect type in assignment (different base types) drivers/media/pci/cx25821/cx25821-video-upstream.c:164:33: warning: incorrect type in assignment (different base types) drivers/media/pci/cx25821/cx25821-video-upstream.c:165:33: warning: incorrect type in assignment (different base types) drivers/media/pci/cx25821/cx25821-medusa-video.h:43:16: warning: symbol '_num_decoders' was not declared. Should it be static? drivers/media/pci/cx25821/cx25821-medusa-video.h:44:16: warning: symbol '_num_cameras' was not declared. Should it be static? drivers/media/pci/cx25821/cx25821-medusa-video.h:46:14: warning: symbol '_video_standard' was not declared. Should it be static? drivers/media/pci/cx25821/cx25821-medusa-video.h:47:5: warning: symbol '_display_field_cnt' was not declared. Should it be static? After analyzing the last four warnings carefully it became clear that these variables were really completely unused. As a result of that the call to medusa_set_decoderduration() is now dubious since the duration is always 0. Without documentation, however, I can't tell what the right value is. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/pci/cx25821/cx25821-cards.c b/drivers/media/pci/cx25821/cx25821-cards.c index 3b409feb03d8..f2ebc989b303 100644 --- a/drivers/media/pci/cx25821/cx25821-cards.c +++ b/drivers/media/pci/cx25821/cx25821-cards.c @@ -45,5 +45,3 @@ struct cx25821_board cx25821_boards[] = { }, }; - -const unsigned int cx25821_bcount = ARRAY_SIZE(cx25821_boards); diff --git a/drivers/media/pci/cx25821/cx25821-medusa-video.c b/drivers/media/pci/cx25821/cx25821-medusa-video.c index 22fa04415ccc..43bdfa4dfba1 100644 --- a/drivers/media/pci/cx25821/cx25821-medusa-video.c +++ b/drivers/media/pci/cx25821/cx25821-medusa-video.c @@ -438,7 +438,7 @@ void medusa_set_resolution(struct cx25821_dev *dev, int width, decoder_count = decoder_select + 1; } else { decoder = 0; - decoder_count = _num_decoders; + decoder_count = dev->_max_num_decoders; } switch (width) { @@ -506,8 +506,6 @@ static void medusa_set_decoderduration(struct cx25821_dev *dev, int decoder, break; } - _display_field_cnt[decoder] = duration; - /* update hardware */ fld_cnt = cx25821_i2c_read(&dev->i2c_bus[0], disp_cnt_reg, &tmp); @@ -667,8 +665,6 @@ int medusa_video_init(struct cx25821_dev *dev) int ret_val = 0; int i = 0; - _num_decoders = dev->_max_num_decoders; - /* disable Auto source selection on all video decoders */ value = cx25821_i2c_read(&dev->i2c_bus[0], MON_A_CTRL, &tmp); value &= 0xFFFFF0FF; @@ -685,8 +681,14 @@ int medusa_video_init(struct cx25821_dev *dev) if (ret_val < 0) goto error; - for (i = 0; i < _num_decoders; i++) - medusa_set_decoderduration(dev, i, _display_field_cnt[i]); + /* + * FIXME: due to a coding bug the duration was always 0. It's + * likely that it really should be something else, but due to the + * lack of documentation I have no idea what it should be. For + * now just fill in 0 as the duration. + */ + for (i = 0; i < dev->_max_num_decoders; i++) + medusa_set_decoderduration(dev, i, 0); /* Select monitor as DENC A input, power up the DAC */ value = cx25821_i2c_read(&dev->i2c_bus[0], DENC_AB_CTRL, &tmp); @@ -717,7 +719,7 @@ int medusa_video_init(struct cx25821_dev *dev) /* Turn on all of the data out and control output pins. */ value = cx25821_i2c_read(&dev->i2c_bus[0], PIN_OE_CTRL, &tmp); value &= 0xFEF0FE00; - if (_num_decoders == MAX_DECODERS) { + if (dev->_max_num_decoders == MAX_DECODERS) { /* * Note: The octal board does not support control pins(bit16-19) * These bits are ignored in the octal board. diff --git a/drivers/media/pci/cx25821/cx25821-medusa-video.h b/drivers/media/pci/cx25821/cx25821-medusa-video.h index 6175e0961855..8bf602ff27b1 100644 --- a/drivers/media/pci/cx25821/cx25821-medusa-video.h +++ b/drivers/media/pci/cx25821/cx25821-medusa-video.h @@ -40,10 +40,4 @@ #define CONTRAST_DEFAULT 5000 #define HUE_DEFAULT 5000 -unsigned short _num_decoders; -unsigned short _num_cameras; - -unsigned int _video_standard; -int _display_field_cnt[MAX_DECODERS]; - #endif diff --git a/drivers/media/pci/cx25821/cx25821-video-upstream.c b/drivers/media/pci/cx25821/cx25821-video-upstream.c index 88ffef410c50..1f43be0b04c8 100644 --- a/drivers/media/pci/cx25821/cx25821-video-upstream.c +++ b/drivers/media/pci/cx25821/cx25821-video-upstream.c @@ -159,10 +159,10 @@ static __le32 *cx25821_risc_field_upstream(struct cx25821_channel *chan, __le32 * For the upstream video channel, the risc engine will enable * the FIFO. */ if (fifo_enable && line == 3) { - *(rp++) = RISC_WRITECR; - *(rp++) = sram_ch->dma_ctl; - *(rp++) = FLD_VID_FIFO_EN; - *(rp++) = 0x00000001; + *(rp++) = cpu_to_le32(RISC_WRITECR); + *(rp++) = cpu_to_le32(sram_ch->dma_ctl); + *(rp++) = cpu_to_le32(FLD_VID_FIFO_EN); + *(rp++) = cpu_to_le32(0x00000001); } }