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drivers/video: fsl-diu-fb: improve message displays

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Add some debug and error messages that are useful during debugging.

Signed-off-by: Timur Tabi <timur@freescale.com>
This commit is contained in:
Timur Tabi 2012-10-16 17:33:46 -05:00
parent f74de500a1
commit 5cc2a36fe8
1 changed files with 33 additions and 1 deletions
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34
drivers/video/fsl-diu-fb.c
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@ -430,6 +430,22 @@ static struct mfb_info mfb_template[] = {
},
};
#ifdef DEBUG
static void __attribute__ ((unused)) fsl_diu_dump(struct diu __iomem *hw)
{
mb();
pr_debug("DIU: desc=%08x,%08x,%08x, gamma=%08x pallete=%08x "
"cursor=%08x curs_pos=%08x diu_mode=%08x bgnd=%08x "
"disp_size=%08x hsyn_para=%08x vsyn_para=%08x syn_pol=%08x "
"thresholds=%08x int_mask=%08x plut=%08x\n",
hw->desc[0], hw->desc[1], hw->desc[2], hw->gamma,
hw->pallete, hw->cursor, hw->curs_pos, hw->diu_mode,
hw->bgnd, hw->disp_size, hw->hsyn_para, hw->vsyn_para,
hw->syn_pol, hw->thresholds, hw->int_mask, hw->plut);
rmb();
}
#endif
/**
* fsl_diu_name_to_port - convert a port name to a monitor port enum
*
@ -1108,6 +1124,12 @@ static int fsl_diu_ioctl(struct fb_info *info, unsigned int cmd,
if (!arg)
return -EINVAL;
dev_dbg(info->dev, "ioctl %08x (dir=%s%s type=%u nr=%u size=%u)\n", cmd,
_IOC_DIR(cmd) & _IOC_READ ? "R" : "",
_IOC_DIR(cmd) & _IOC_WRITE ? "W" : "",
_IOC_TYPE(cmd), _IOC_NR(cmd), _IOC_SIZE(cmd));
switch (cmd) {
case MFB_SET_PIXFMT_OLD:
dev_warn(info->dev,
@ -1754,6 +1776,9 @@ static int __init fsl_diu_init(void)
coherence_data_size = be32_to_cpup(prop) * 13;
coherence_data_size /= 8;
pr_debug("fsl-diu-fb: coherence data size is %zu bytes\n",
coherence_data_size);
prop = of_get_property(np, "d-cache-line-size", NULL);
if (prop == NULL) {
pr_err("fsl-diu-fb: missing 'd-cache-line-size' property' "
@ -1763,10 +1788,17 @@ static int __init fsl_diu_init(void)
}
d_cache_line_size = be32_to_cpup(prop);
pr_debug("fsl-diu-fb: cache lines size is %u bytes\n",
d_cache_line_size);
of_node_put(np);
coherence_data = vmalloc(coherence_data_size);
if (!coherence_data)
if (!coherence_data) {
pr_err("fsl-diu-fb: could not allocate coherence data "
"(size=%zu)\n", coherence_data_size);
return -ENOMEM;
}
#endif
ret = platform_driver_register(&fsl_diu_driver);