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author | Igor Opaniuk <igor.opaniuk@toradex.com> | 2019-06-19 11:47:05 +0300 |
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committer | Anatolij Gustschin <agust@denx.de> | 2019-07-29 01:11:16 +0300 |
commit | e19441ecbc24beecced1340be2942b70b6d63d2a (patch) | |
tree | f65464e7fcac96b25e3947b81f35efb1d42f30ae /drivers/video | |
parent | 632e9af551f1c22193976529bb1dbb3b45491aac (diff) | |
download | u-boot-e19441ecbc24beecced1340be2942b70b6d63d2a.tar.xz |
video: mxsfb: fix mxsfb fbdev binding issues
Add support for display and bits-per-pixel properties.
Signed-off-by: Igor Opaniuk <igor.opaniuk@toradex.com>
Reviewed-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com>
Diffstat (limited to 'drivers/video')
-rw-r--r-- | drivers/video/mxsfb.c | 74 |
1 files changed, 62 insertions, 12 deletions
diff --git a/drivers/video/mxsfb.c b/drivers/video/mxsfb.c index f02ba20138..6c9a7c05e8 100644 --- a/drivers/video/mxsfb.c +++ b/drivers/video/mxsfb.c @@ -271,6 +271,42 @@ dealloc_fb: } #else /* ifndef CONFIG_DM_VIDEO */ +static int mxs_of_get_timings(struct udevice *dev, + struct display_timing *timings, + u32 *bpp) +{ + int ret = 0; + u32 display_phandle; + ofnode display_node; + + ret = ofnode_read_u32(dev_ofnode(dev), "display", &display_phandle); + if (ret) { + dev_err(dev, "required display property isn't provided\n"); + return -EINVAL; + } + + display_node = ofnode_get_by_phandle(display_phandle); + if (!ofnode_valid(display_node)) { + dev_err(dev, "failed to find display subnode\n"); + return -EINVAL; + } + + ret = ofnode_read_u32(display_node, "bits-per-pixel", bpp); + if (ret) { + dev_err(dev, + "required bits-per-pixel property isn't provided\n"); + return -EINVAL; + } + + ret = ofnode_decode_display_timing(display_node, 0, timings); + if (ret) { + dev_err(dev, "failed to get any display timings\n"); + return -EINVAL; + } + + return ret; +} + static int mxs_video_probe(struct udevice *dev) { struct video_uc_platdata *plat = dev_get_uclass_platdata(dev); @@ -278,18 +314,16 @@ static int mxs_video_probe(struct udevice *dev) struct ctfb_res_modes mode; struct display_timing timings; - int bpp = -1; + u32 bpp = 0; u32 fb_start, fb_end; int ret; debug("%s() plat: base 0x%lx, size 0x%x\n", __func__, plat->base, plat->size); - ret = ofnode_decode_display_timing(dev_ofnode(dev), 0, &timings); - if (ret) { - dev_err(dev, "failed to get any display timings\n"); - return -EINVAL; - } + ret = mxs_of_get_timings(dev, &timings, &bpp); + if (ret) + return ret; mode.xres = timings.hactive.typ; mode.yres = timings.vactive.typ; @@ -301,13 +335,12 @@ static int mxs_video_probe(struct udevice *dev) mode.vsync_len = timings.vsync_len.typ; mode.pixclock = HZ2PS(timings.pixelclock.typ); - bpp = BITS_PP; - ret = mxs_probe_common(&mode, bpp, plat->base); if (ret) return ret; switch (bpp) { + case 32: case 24: case 18: uc_priv->bpix = VIDEO_BPP32; @@ -341,15 +374,32 @@ static int mxs_video_bind(struct udevice *dev) { struct video_uc_platdata *plat = dev_get_uclass_platdata(dev); struct display_timing timings; + u32 bpp = 0; + u32 bytes_pp = 0; int ret; - ret = ofnode_decode_display_timing(dev_ofnode(dev), 0, &timings); - if (ret) { - dev_err(dev, "failed to get any display timings\n"); + ret = mxs_of_get_timings(dev, &timings, &bpp); + if (ret) + return ret; + + switch (bpp) { + case 32: + case 24: + case 18: + bytes_pp = 4; + break; + case 16: + bytes_pp = 2; + break; + case 8: + bytes_pp = 1; + break; + default: + dev_err(dev, "invalid bpp specified (bpp = %i)\n", bpp); return -EINVAL; } - plat->size = timings.hactive.typ * timings.vactive.typ * BYTES_PP; + plat->size = timings.hactive.typ * timings.vactive.typ * bytes_pp; return 0; } |