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Commit 5cc2a36f authored by Timur Tabi's avatar Timur Tabi
Browse files

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



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

Signed-off-by: default avatarTimur Tabi <timur@freescale.com>
parent f74de500

drivers/video/fsl-diu-fb.c

+33 −1
Original line number Diff line number Diff line
@@ -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);