pxafb: un-nest pxafb_parse_options() to cleanup the coding style issue

pxafb_parse_options() has very long lines exceeding far beyond 80 characters, which makes the function looks bad. Un-nest it into smaller functions and use a temporary string for only what has been overridden instead of the whole dev_info() message to reduce the line a bit more. Signed-off-by: eric miao <eric.miao@marvell.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
author: eric miao <eric.miao@marvell.com> 2008-04-30 03:52:18 -0400
committer: Linus Torvalds <torvalds@linux-foundation.org> 2008-04-30 11:29:31 -0400
commit: 817daf14a5fa77d4e2c3b63c9be12fbf6eada37d (patch)
tree: 0e60ad138ab4470a8e46ceab8115e46b5249d037
parent: 592e7bf80566bf5ac3ed073d4e198dd5b0824c04 (diff)
1 files changed, 166 insertions, 140 deletions
diff --git a/drivers/video/pxafb.c b/drivers/video/pxafb.c
index 757651954e6c..02787a43002f 100644
--- a/drivers/video/pxafb.c
+++ b/drivers/video/pxafb.c
@@ -1211,154 +1211,180 @@ static struct pxafb_info * __init pxafb_init_fbinfo(struct device *dev)
 }
 #ifdef CONFIG_FB_PXA_PARAMETERS
-static int __init pxafb_parse_options(struct device *dev, char *options)
+static int parse_opt_mode(struct device *dev, const char *this_opt)
 {
        struct pxafb_mach_info *inf = dev->platform_data;
+        const char *name = this_opt+5;
+        unsigned int namelen = strlen(name);
+        int res_specified = 0, bpp_specified = 0;
+        unsigned int xres = 0, yres = 0, bpp = 0;
+        int yres_specified = 0;
+        int i;
+        for (i = namelen-1; i >= 0; i--) {
+                switch (name[i]) {
+                case '-':
+                        namelen = i;
+                        if (!bpp_specified && !yres_specified) {
+                                bpp = simple_strtoul(&name[i+1], NULL, 0);
+                                bpp_specified = 1;
+                        } else
+                                goto done;
+                        break;
+                case 'x':
+                        if (!yres_specified) {
+                                yres = simple_strtoul(&name[i+1], NULL, 0);
+                                yres_specified = 1;
+                        } else
+                                goto done;
+                        break;
+                case '0' ... '9':
+                        break;
+                default:
+                        goto done;
+                }
+        }
+        if (i < 0 && yres_specified) {
+                xres = simple_strtoul(name, NULL, 0);
+                res_specified = 1;
+        }
+done:
+        if (res_specified) {
+                dev_info(dev, "overriding resolution: %dx%d\n", xres, yres);
+                inf->modes[0].xres = xres; inf->modes[0].yres = yres;
+        }
+        if (bpp_specified)
+                switch (bpp) {
+                case 1:
+                case 2:
+                case 4:
+                case 8:
+                case 16:
+                        inf->modes[0].bpp = bpp;
+                        dev_info(dev, "overriding bit depth: %d\n", bpp);
+                        break;
+                default:
+                        dev_err(dev, "Depth %d is not valid\n", bpp);
+                        return -EINVAL;
+                }
+        return 0;
+}
+static int parse_opt(struct device *dev, char *this_opt)
+{
+        struct pxafb_mach_info *inf = dev->platform_data;
+        struct pxafb_mode_info *mode = &inf->modes[0];
+        char s[64];
+        s[0] = '\0';
+        if (!strncmp(this_opt, "mode:", 5)) {
+                return parse_opt_mode(dev, this_opt);
+        } else if (!strncmp(this_opt, "pixclock:", 9)) {
+                mode->pixclock = simple_strtoul(this_opt+9, NULL, 0);
+                sprintf(s, "pixclock: %ld\n", mode->pixclock);
+        } else if (!strncmp(this_opt, "left:", 5)) {
+                mode->left_margin = simple_strtoul(this_opt+5, NULL, 0);
+                sprintf(s, "left: %u\n", mode->left_margin);
+        } else if (!strncmp(this_opt, "right:", 6)) {
+                mode->right_margin = simple_strtoul(this_opt+6, NULL, 0);
+                sprintf(s, "right: %u\n", mode->right_margin);
+        } else if (!strncmp(this_opt, "upper:", 6)) {
+                mode->upper_margin = simple_strtoul(this_opt+6, NULL, 0);
+                sprintf(s, "upper: %u\n", mode->upper_margin);
+        } else if (!strncmp(this_opt, "lower:", 6)) {
+                mode->lower_margin = simple_strtoul(this_opt+6, NULL, 0);
+                sprintf(s, "lower: %u\n", mode->lower_margin);
+        } else if (!strncmp(this_opt, "hsynclen:", 9)) {
+                mode->hsync_len = simple_strtoul(this_opt+9, NULL, 0);
+                sprintf(s, "hsynclen: %u\n", mode->hsync_len);
+        } else if (!strncmp(this_opt, "vsynclen:", 9)) {
+                mode->vsync_len = simple_strtoul(this_opt+9, NULL, 0);
+                sprintf(s, "vsynclen: %u\n", mode->vsync_len);
+        } else if (!strncmp(this_opt, "hsync:", 6)) {
+                if (simple_strtoul(this_opt+6, NULL, 0) == 0) {
+                        sprintf(s, "hsync: Active Low\n");
+                        mode->sync &= ~FB_SYNC_HOR_HIGH_ACT;
+                } else {
+                        sprintf(s, "hsync: Active High\n");
+                        mode->sync |= FB_SYNC_HOR_HIGH_ACT;
+                }
+        } else if (!strncmp(this_opt, "vsync:", 6)) {
+                if (simple_strtoul(this_opt+6, NULL, 0) == 0) {
+                        sprintf(s, "vsync: Active Low\n");
+                        mode->sync &= ~FB_SYNC_VERT_HIGH_ACT;
+                } else {
+                        sprintf(s, "vsync: Active High\n");
+                        mode->sync |= FB_SYNC_VERT_HIGH_ACT;
+                }
+        } else if (!strncmp(this_opt, "dpc:", 4)) {
+                if (simple_strtoul(this_opt+4, NULL, 0) == 0) {
+                        sprintf(s, "double pixel clock: false\n");
+                        inf->lccr3 &= ~LCCR3_DPC;
+                } else {
+                        sprintf(s, "double pixel clock: true\n");
+                        inf->lccr3 |= LCCR3_DPC;
+                }
+        } else if (!strncmp(this_opt, "outputen:", 9)) {
+                if (simple_strtoul(this_opt+9, NULL, 0) == 0) {
+                        sprintf(s, "output enable: active low\n");
+                        inf->lccr3 = (inf->lccr3 & ~LCCR3_OEP) | LCCR3_OutEnL;
+                } else {
+                        sprintf(s, "output enable: active high\n");
+                        inf->lccr3 = (inf->lccr3 & ~LCCR3_OEP) | LCCR3_OutEnH;
+                }
+        } else if (!strncmp(this_opt, "pixclockpol:", 12)) {
+                if (simple_strtoul(this_opt+12, NULL, 0) == 0) {
+                        sprintf(s, "pixel clock polarity: falling edge\n");
+                        inf->lccr3 = (inf->lccr3 & ~LCCR3_PCP) | LCCR3_PixFlEdg;
+                } else {
+                        sprintf(s, "pixel clock polarity: rising edge\n");
+                        inf->lccr3 = (inf->lccr3 & ~LCCR3_PCP) | LCCR3_PixRsEdg;
+                }
+        } else if (!strncmp(this_opt, "color", 5)) {
+                inf->lccr0 = (inf->lccr0 & ~LCCR0_CMS) | LCCR0_Color;
+        } else if (!strncmp(this_opt, "mono", 4)) {
+                inf->lccr0 = (inf->lccr0 & ~LCCR0_CMS) | LCCR0_Mono;
+        } else if (!strncmp(this_opt, "active", 6)) {
+                inf->lccr0 = (inf->lccr0 & ~LCCR0_PAS) | LCCR0_Act;
+        } else if (!strncmp(this_opt, "passive", 7)) {
+                inf->lccr0 = (inf->lccr0 & ~LCCR0_PAS) | LCCR0_Pas;
+        } else if (!strncmp(this_opt, "single", 6)) {
+                inf->lccr0 = (inf->lccr0 & ~LCCR0_SDS) | LCCR0_Sngl;
+        } else if (!strncmp(this_opt, "dual", 4)) {
+                inf->lccr0 = (inf->lccr0 & ~LCCR0_SDS) | LCCR0_Dual;
+        } else if (!strncmp(this_opt, "4pix", 4)) {
+                inf->lccr0 = (inf->lccr0 & ~LCCR0_DPD) | LCCR0_4PixMono;
+        } else if (!strncmp(this_opt, "8pix", 4)) {
+                inf->lccr0 = (inf->lccr0 & ~LCCR0_DPD) | LCCR0_8PixMono;
+        } else {
+                dev_err(dev, "unknown option: %s\n", this_opt);
+                return -EINVAL;
+        }
+        if (s[0] != '\0')
+                dev_info(dev, "override %s", s);
+        return 0;
+}
+static int __init pxafb_parse_options(struct device *dev, char *options)
+{
        char *this_opt;
+        int ret;
-        if (!options || !*options)
+        if (!options || !*options)
-                return 0;
+                return 0;
        dev_dbg(dev, "options are \"%s\"\n", options ? options : "null");
        /* could be made table driven or similar?... */
-        while ((this_opt = strsep(&options, ",")) != NULL) {
+        while ((this_opt = strsep(&options, ",")) != NULL) {
-                if (!strncmp(this_opt, "mode:", 5)) {
+                ret = parse_opt(dev, this_opt);
-                        const char *name = this_opt+5;
+                if (ret)
-                        unsigned int namelen = strlen(name);
+                        return ret;
-                        int res_specified = 0, bpp_specified = 0;
+        }
-                        unsigned int xres = 0, yres = 0, bpp = 0;
+        return 0;
-                        int yres_specified = 0;
-                        int i;
-                        for (i = namelen-1; i >= 0; i--) {
-                                switch (name[i]) {
-                                case '-':
-                                        namelen = i;
-                                        if (!bpp_specified && !yres_specified) {
-                                                bpp = simple_strtoul(&name[i+1], NULL, 0);
-                                                bpp_specified = 1;
-                                        } else
-                                                goto done;
-                                        break;
-                                case 'x':
-                                        if (!yres_specified) {
-                                                yres = simple_strtoul(&name[i+1], NULL, 0);
-                                                yres_specified = 1;
-                                        } else
-                                                goto done;
-                                        break;
-                                case '0' ... '9':
-                                        break;
-                                default:
-                                        goto done;
-                                }
-                        }
-                        if (i < 0 && yres_specified) {
-                                xres = simple_strtoul(name, NULL, 0);
-                                res_specified = 1;
-                        }
-                done:
-                        if (res_specified) {
-                                dev_info(dev, "overriding resolution: %dx%d\n", xres, yres);
-                                inf->modes[0].xres = xres; inf->modes[0].yres = yres;
-                        }
-                        if (bpp_specified)
-                                switch (bpp) {
-                                case 1:
-                                case 2:
-                                case 4:
-                                case 8:
-                                case 16:
-                                        inf->modes[0].bpp = bpp;
-                                        dev_info(dev, "overriding bit depth: %d\n", bpp);
-                                        break;
-                                default:
-                                        dev_err(dev, "Depth %d is not valid\n", bpp);
-                                }
-                } else if (!strncmp(this_opt, "pixclock:", 9)) {
-                        inf->modes[0].pixclock = simple_strtoul(this_opt+9, NULL, 0);
-                        dev_info(dev, "override pixclock: %ld\n", inf->modes[0].pixclock);
-                } else if (!strncmp(this_opt, "left:", 5)) {
-                        inf->modes[0].left_margin = simple_strtoul(this_opt+5, NULL, 0);
-                        dev_info(dev, "override left: %u\n", inf->modes[0].left_margin);
-                } else if (!strncmp(this_opt, "right:", 6)) {
-                        inf->modes[0].right_margin = simple_strtoul(this_opt+6, NULL, 0);
-                        dev_info(dev, "override right: %u\n", inf->modes[0].right_margin);
-                } else if (!strncmp(this_opt, "upper:", 6)) {
-                        inf->modes[0].upper_margin = simple_strtoul(this_opt+6, NULL, 0);
-                        dev_info(dev, "override upper: %u\n", inf->modes[0].upper_margin);
-                } else if (!strncmp(this_opt, "lower:", 6)) {
-                        inf->modes[0].lower_margin = simple_strtoul(this_opt+6, NULL, 0);
-                        dev_info(dev, "override lower: %u\n", inf->modes[0].lower_margin);
-                } else if (!strncmp(this_opt, "hsynclen:", 9)) {
-                        inf->modes[0].hsync_len = simple_strtoul(this_opt+9, NULL, 0);
-                        dev_info(dev, "override hsynclen: %u\n", inf->modes[0].hsync_len);
-                } else if (!strncmp(this_opt, "vsynclen:", 9)) {
-                        inf->modes[0].vsync_len = simple_strtoul(this_opt+9, NULL, 0);
-                        dev_info(dev, "override vsynclen: %u\n", inf->modes[0].vsync_len);
-                } else if (!strncmp(this_opt, "hsync:", 6)) {
-                        if (simple_strtoul(this_opt+6, NULL, 0) == 0) {
-                                dev_info(dev, "override hsync: Active Low\n");
-                                inf->modes[0].sync &= ~FB_SYNC_HOR_HIGH_ACT;
-                        } else {
-                                dev_info(dev, "override hsync: Active High\n");
-                                inf->modes[0].sync |= FB_SYNC_HOR_HIGH_ACT;
-                        }
-                } else if (!strncmp(this_opt, "vsync:", 6)) {
-                        if (simple_strtoul(this_opt+6, NULL, 0) == 0) {
-                                dev_info(dev, "override vsync: Active Low\n");
-                                inf->modes[0].sync &= ~FB_SYNC_VERT_HIGH_ACT;
-                        } else {
-                                dev_info(dev, "override vsync: Active High\n");
-                                inf->modes[0].sync |= FB_SYNC_VERT_HIGH_ACT;
-                        }
-                } else if (!strncmp(this_opt, "dpc:", 4)) {
-                        if (simple_strtoul(this_opt+4, NULL, 0) == 0) {
-                                dev_info(dev, "override double pixel clock: false\n");
-                                inf->lccr3 &= ~LCCR3_DPC;
-                        } else {
-                                dev_info(dev, "override double pixel clock: true\n");
-                                inf->lccr3 |= LCCR3_DPC;
-                        }
-                } else if (!strncmp(this_opt, "outputen:", 9)) {
-                        if (simple_strtoul(this_opt+9, NULL, 0) == 0) {
-                                dev_info(dev, "override output enable: active low\n");
-                                inf->lccr3 = (inf->lccr3 & ~LCCR3_OEP) | LCCR3_OutEnL;
-                        } else {
-                                dev_info(dev, "override output enable: active high\n");
-                                inf->lccr3 = (inf->lccr3 & ~LCCR3_OEP) | LCCR3_OutEnH;
-                        }
-                } else if (!strncmp(this_opt, "pixclockpol:", 12)) {
-                        if (simple_strtoul(this_opt+12, NULL, 0) == 0) {
-                                dev_info(dev, "override pixel clock polarity: falling edge\n");
-                                inf->lccr3 = (inf->lccr3 & ~LCCR3_PCP) | LCCR3_PixFlEdg;
-                        } else {
-                                dev_info(dev, "override pixel clock polarity: rising edge\n");
-                                inf->lccr3 = (inf->lccr3 & ~LCCR3_PCP) | LCCR3_PixRsEdg;
-                        }
-                } else if (!strncmp(this_opt, "color", 5)) {
-                        inf->lccr0 = (inf->lccr0 & ~LCCR0_CMS) | LCCR0_Color;
-                } else if (!strncmp(this_opt, "mono", 4)) {
-                        inf->lccr0 = (inf->lccr0 & ~LCCR0_CMS) | LCCR0_Mono;
-                } else if (!strncmp(this_opt, "active", 6)) {
-                        inf->lccr0 = (inf->lccr0 & ~LCCR0_PAS) | LCCR0_Act;
-                } else if (!strncmp(this_opt, "passive", 7)) {
-                        inf->lccr0 = (inf->lccr0 & ~LCCR0_PAS) | LCCR0_Pas;
-                } else if (!strncmp(this_opt, "single", 6)) {
-                        inf->lccr0 = (inf->lccr0 & ~LCCR0_SDS) | LCCR0_Sngl;
-                } else if (!strncmp(this_opt, "dual", 4)) {
-                        inf->lccr0 = (inf->lccr0 & ~LCCR0_SDS) | LCCR0_Dual;
-                } else if (!strncmp(this_opt, "4pix", 4)) {
-                        inf->lccr0 = (inf->lccr0 & ~LCCR0_DPD) | LCCR0_4PixMono;
-                } else if (!strncmp(this_opt, "8pix", 4)) {
-                        inf->lccr0 = (inf->lccr0 & ~LCCR0_DPD) | LCCR0_8PixMono;
-                } else {
-                        dev_err(dev, "unknown option: %s\n", this_opt);
-                        return -EINVAL;
-                }
-        }
-        return 0;
 }
 #endif
author	eric miao <eric.miao@marvell.com>	2008-04-30 03:52:18 -0400
committer	Linus Torvalds <torvalds@linux-foundation.org>	2008-04-30 11:29:31 -0400
commit	817daf14a5fa77d4e2c3b63c9be12fbf6eada37d (patch)
tree	0e60ad138ab4470a8e46ceab8115e46b5249d037
parent	592e7bf80566bf5ac3ed073d4e198dd5b0824c04 (diff)

diff --git a/drivers/video/pxafb.c b/drivers/video/pxafb.c index 757651954e6c..02787a43002f 100644 --- a/drivers/video/pxafb.c +++ b/drivers/video/pxafb.c
@@ -1211,154 +1211,180 @@ static struct pxafb_info * __init pxafb_init_fbinfo(struct device *dev)
1211	}	1211	}
1212		1212
1213	#ifdef CONFIG_FB_PXA_PARAMETERS	1213	#ifdef CONFIG_FB_PXA_PARAMETERS
1214	static int __init pxafb_parse_options(struct device dev, char options)	1214	static int parse_opt_mode(struct device dev, const char this_opt)
1215	{	1215	{
1216	struct pxafb_mach_info *inf = dev->platform_data;	1216	struct pxafb_mach_info *inf = dev->platform_data;
		1217
		1218	const char *name = this_opt+5;
		1219	unsigned int namelen = strlen(name);
		1220	int res_specified = 0, bpp_specified = 0;
		1221	unsigned int xres = 0, yres = 0, bpp = 0;
		1222	int yres_specified = 0;
		1223	int i;
		1224	for (i = namelen-1; i >= 0; i--) {
		1225	switch (name[i]) {
		1226	case '-':
		1227	namelen = i;
		1228	if (!bpp_specified && !yres_specified) {
		1229	bpp = simple_strtoul(&name[i+1], NULL, 0);
		1230	bpp_specified = 1;
		1231	} else
		1232	goto done;
		1233	break;
		1234	case 'x':
		1235	if (!yres_specified) {
		1236	yres = simple_strtoul(&name[i+1], NULL, 0);
		1237	yres_specified = 1;
		1238	} else
		1239	goto done;
		1240	break;
		1241	case '0' ... '9':
		1242	break;
		1243	default:
		1244	goto done;
		1245	}
		1246	}
		1247	if (i < 0 && yres_specified) {
		1248	xres = simple_strtoul(name, NULL, 0);
		1249	res_specified = 1;
		1250	}
		1251	done:
		1252	if (res_specified) {
		1253	dev_info(dev, "overriding resolution: %dx%d\n", xres, yres);
		1254	inf->modes[0].xres = xres; inf->modes[0].yres = yres;
		1255	}
		1256	if (bpp_specified)
		1257	switch (bpp) {
		1258	case 1:
		1259	case 2:
		1260	case 4:
		1261	case 8:
		1262	case 16:
		1263	inf->modes[0].bpp = bpp;
		1264	dev_info(dev, "overriding bit depth: %d\n", bpp);
		1265	break;
		1266	default:
		1267	dev_err(dev, "Depth %d is not valid\n", bpp);
		1268	return -EINVAL;
		1269	}
		1270	return 0;
		1271	}
		1272
		1273	static int parse_opt(struct device dev, char this_opt)
		1274	{
		1275	struct pxafb_mach_info *inf = dev->platform_data;
		1276	struct pxafb_mode_info *mode = &inf->modes[0];
		1277	char s[64];
		1278
		1279	s[0] = '\0';
		1280
		1281	if (!strncmp(this_opt, "mode:", 5)) {
		1282	return parse_opt_mode(dev, this_opt);
		1283	} else if (!strncmp(this_opt, "pixclock:", 9)) {
		1284	mode->pixclock = simple_strtoul(this_opt+9, NULL, 0);
		1285	sprintf(s, "pixclock: %ld\n", mode->pixclock);
		1286	} else if (!strncmp(this_opt, "left:", 5)) {
		1287	mode->left_margin = simple_strtoul(this_opt+5, NULL, 0);
		1288	sprintf(s, "left: %u\n", mode->left_margin);
		1289	} else if (!strncmp(this_opt, "right:", 6)) {
		1290	mode->right_margin = simple_strtoul(this_opt+6, NULL, 0);
		1291	sprintf(s, "right: %u\n", mode->right_margin);
		1292	} else if (!strncmp(this_opt, "upper:", 6)) {
		1293	mode->upper_margin = simple_strtoul(this_opt+6, NULL, 0);
		1294	sprintf(s, "upper: %u\n", mode->upper_margin);
		1295	} else if (!strncmp(this_opt, "lower:", 6)) {
		1296	mode->lower_margin = simple_strtoul(this_opt+6, NULL, 0);
		1297	sprintf(s, "lower: %u\n", mode->lower_margin);
		1298	} else if (!strncmp(this_opt, "hsynclen:", 9)) {
		1299	mode->hsync_len = simple_strtoul(this_opt+9, NULL, 0);
		1300	sprintf(s, "hsynclen: %u\n", mode->hsync_len);
		1301	} else if (!strncmp(this_opt, "vsynclen:", 9)) {
		1302	mode->vsync_len = simple_strtoul(this_opt+9, NULL, 0);
		1303	sprintf(s, "vsynclen: %u\n", mode->vsync_len);
		1304	} else if (!strncmp(this_opt, "hsync:", 6)) {
		1305	if (simple_strtoul(this_opt+6, NULL, 0) == 0) {
		1306	sprintf(s, "hsync: Active Low\n");
		1307	mode->sync &= ~FB_SYNC_HOR_HIGH_ACT;
		1308	} else {
		1309	sprintf(s, "hsync: Active High\n");
		1310	mode->sync \|= FB_SYNC_HOR_HIGH_ACT;
		1311	}
		1312	} else if (!strncmp(this_opt, "vsync:", 6)) {
		1313	if (simple_strtoul(this_opt+6, NULL, 0) == 0) {
		1314	sprintf(s, "vsync: Active Low\n");
		1315	mode->sync &= ~FB_SYNC_VERT_HIGH_ACT;
		1316	} else {
		1317	sprintf(s, "vsync: Active High\n");
		1318	mode->sync \|= FB_SYNC_VERT_HIGH_ACT;
		1319	}
		1320	} else if (!strncmp(this_opt, "dpc:", 4)) {
		1321	if (simple_strtoul(this_opt+4, NULL, 0) == 0) {
		1322	sprintf(s, "double pixel clock: false\n");
		1323	inf->lccr3 &= ~LCCR3_DPC;
		1324	} else {
		1325	sprintf(s, "double pixel clock: true\n");
		1326	inf->lccr3 \|= LCCR3_DPC;
		1327	}
		1328	} else if (!strncmp(this_opt, "outputen:", 9)) {
		1329	if (simple_strtoul(this_opt+9, NULL, 0) == 0) {
		1330	sprintf(s, "output enable: active low\n");
		1331	inf->lccr3 = (inf->lccr3 & ~LCCR3_OEP) \| LCCR3_OutEnL;
		1332	} else {
		1333	sprintf(s, "output enable: active high\n");
		1334	inf->lccr3 = (inf->lccr3 & ~LCCR3_OEP) \| LCCR3_OutEnH;
		1335	}
		1336	} else if (!strncmp(this_opt, "pixclockpol:", 12)) {
		1337	if (simple_strtoul(this_opt+12, NULL, 0) == 0) {
		1338	sprintf(s, "pixel clock polarity: falling edge\n");
		1339	inf->lccr3 = (inf->lccr3 & ~LCCR3_PCP) \| LCCR3_PixFlEdg;
		1340	} else {
		1341	sprintf(s, "pixel clock polarity: rising edge\n");
		1342	inf->lccr3 = (inf->lccr3 & ~LCCR3_PCP) \| LCCR3_PixRsEdg;
		1343	}
		1344	} else if (!strncmp(this_opt, "color", 5)) {
		1345	inf->lccr0 = (inf->lccr0 & ~LCCR0_CMS) \| LCCR0_Color;
		1346	} else if (!strncmp(this_opt, "mono", 4)) {
		1347	inf->lccr0 = (inf->lccr0 & ~LCCR0_CMS) \| LCCR0_Mono;
		1348	} else if (!strncmp(this_opt, "active", 6)) {
		1349	inf->lccr0 = (inf->lccr0 & ~LCCR0_PAS) \| LCCR0_Act;
		1350	} else if (!strncmp(this_opt, "passive", 7)) {
		1351	inf->lccr0 = (inf->lccr0 & ~LCCR0_PAS) \| LCCR0_Pas;
		1352	} else if (!strncmp(this_opt, "single", 6)) {
		1353	inf->lccr0 = (inf->lccr0 & ~LCCR0_SDS) \| LCCR0_Sngl;
		1354	} else if (!strncmp(this_opt, "dual", 4)) {
		1355	inf->lccr0 = (inf->lccr0 & ~LCCR0_SDS) \| LCCR0_Dual;
		1356	} else if (!strncmp(this_opt, "4pix", 4)) {
		1357	inf->lccr0 = (inf->lccr0 & ~LCCR0_DPD) \| LCCR0_4PixMono;
		1358	} else if (!strncmp(this_opt, "8pix", 4)) {
		1359	inf->lccr0 = (inf->lccr0 & ~LCCR0_DPD) \| LCCR0_8PixMono;
		1360	} else {
		1361	dev_err(dev, "unknown option: %s\n", this_opt);
		1362	return -EINVAL;
		1363	}
		1364
		1365	if (s[0] != '\0')
		1366	dev_info(dev, "override %s", s);
		1367
		1368	return 0;
		1369	}
		1370
		1371	static int __init pxafb_parse_options(struct device dev, char options)
		1372	{
1217	char *this_opt;	1373	char *this_opt;
		1374	int ret;
1218		1375
1219	if (!options \|\| !*options)	1376	if (!options \|\| !*options)
1220	return 0;	1377	return 0;
1221		1378
1222	dev_dbg(dev, "options are \"%s\"\n", options ? options : "null");	1379	dev_dbg(dev, "options are \"%s\"\n", options ? options : "null");
1223		1380
1224	/* could be made table driven or similar?... */	1381	/* could be made table driven or similar?... */
1225	while ((this_opt = strsep(&options, ",")) != NULL) {	1382	while ((this_opt = strsep(&options, ",")) != NULL) {
1226	if (!strncmp(this_opt, "mode:", 5)) {	1383	ret = parse_opt(dev, this_opt);
1227	const char *name = this_opt+5;	1384	if (ret)
1228	unsigned int namelen = strlen(name);	1385	return ret;
1229	int res_specified = 0, bpp_specified = 0;	1386	}
1230	unsigned int xres = 0, yres = 0, bpp = 0;	1387	return 0;
1231	int yres_specified = 0;
1232	int i;
1233	for (i = namelen-1; i >= 0; i--) {
1234	switch (name[i]) {
1235	case '-':
1236	namelen = i;
1237	if (!bpp_specified && !yres_specified) {
1238	bpp = simple_strtoul(&name[i+1], NULL, 0);
1239	bpp_specified = 1;
1240	} else
1241	goto done;
1242	break;
1243	case 'x':
1244	if (!yres_specified) {
1245	yres = simple_strtoul(&name[i+1], NULL, 0);
1246	yres_specified = 1;
1247	} else
1248	goto done;
1249	break;
1250	case '0' ... '9':
1251	break;
1252	default:
1253	goto done;
1254	}
1255	}
1256	if (i < 0 && yres_specified) {
1257	xres = simple_strtoul(name, NULL, 0);
1258	res_specified = 1;
1259	}
1260	done:
1261	if (res_specified) {
1262	dev_info(dev, "overriding resolution: %dx%d\n", xres, yres);
1263	inf->modes[0].xres = xres; inf->modes[0].yres = yres;
1264	}
1265	if (bpp_specified)
1266	switch (bpp) {
1267	case 1:
1268	case 2:
1269	case 4:
1270	case 8:
1271	case 16:
1272	inf->modes[0].bpp = bpp;
1273	dev_info(dev, "overriding bit depth: %d\n", bpp);
1274	break;
1275	default:
1276	dev_err(dev, "Depth %d is not valid\n", bpp);
1277	}
1278	} else if (!strncmp(this_opt, "pixclock:", 9)) {
1279	inf->modes[0].pixclock = simple_strtoul(this_opt+9, NULL, 0);
1280	dev_info(dev, "override pixclock: %ld\n", inf->modes[0].pixclock);
1281	} else if (!strncmp(this_opt, "left:", 5)) {
1282	inf->modes[0].left_margin = simple_strtoul(this_opt+5, NULL, 0);
1283	dev_info(dev, "override left: %u\n", inf->modes[0].left_margin);
1284	} else if (!strncmp(this_opt, "right:", 6)) {
1285	inf->modes[0].right_margin = simple_strtoul(this_opt+6, NULL, 0);
1286	dev_info(dev, "override right: %u\n", inf->modes[0].right_margin);
1287	} else if (!strncmp(this_opt, "upper:", 6)) {
1288	inf->modes[0].upper_margin = simple_strtoul(this_opt+6, NULL, 0);
1289	dev_info(dev, "override upper: %u\n", inf->modes[0].upper_margin);
1290	} else if (!strncmp(this_opt, "lower:", 6)) {
1291	inf->modes[0].lower_margin = simple_strtoul(this_opt+6, NULL, 0);
1292	dev_info(dev, "override lower: %u\n", inf->modes[0].lower_margin);
1293	} else if (!strncmp(this_opt, "hsynclen:", 9)) {
1294	inf->modes[0].hsync_len = simple_strtoul(this_opt+9, NULL, 0);
1295	dev_info(dev, "override hsynclen: %u\n", inf->modes[0].hsync_len);
1296	} else if (!strncmp(this_opt, "vsynclen:", 9)) {
1297	inf->modes[0].vsync_len = simple_strtoul(this_opt+9, NULL, 0);
1298	dev_info(dev, "override vsynclen: %u\n", inf->modes[0].vsync_len);
1299	} else if (!strncmp(this_opt, "hsync:", 6)) {
1300	if (simple_strtoul(this_opt+6, NULL, 0) == 0) {
1301	dev_info(dev, "override hsync: Active Low\n");
1302	inf->modes[0].sync &= ~FB_SYNC_HOR_HIGH_ACT;
1303	} else {
1304	dev_info(dev, "override hsync: Active High\n");
1305	inf->modes[0].sync \|= FB_SYNC_HOR_HIGH_ACT;
1306	}
1307	} else if (!strncmp(this_opt, "vsync:", 6)) {
1308	if (simple_strtoul(this_opt+6, NULL, 0) == 0) {
1309	dev_info(dev, "override vsync: Active Low\n");
1310	inf->modes[0].sync &= ~FB_SYNC_VERT_HIGH_ACT;
1311	} else {
1312	dev_info(dev, "override vsync: Active High\n");
1313	inf->modes[0].sync \|= FB_SYNC_VERT_HIGH_ACT;
1314	}
1315	} else if (!strncmp(this_opt, "dpc:", 4)) {
1316	if (simple_strtoul(this_opt+4, NULL, 0) == 0) {
1317	dev_info(dev, "override double pixel clock: false\n");
1318	inf->lccr3 &= ~LCCR3_DPC;
1319	} else {
1320	dev_info(dev, "override double pixel clock: true\n");
1321	inf->lccr3 \|= LCCR3_DPC;
1322	}
1323	} else if (!strncmp(this_opt, "outputen:", 9)) {
1324	if (simple_strtoul(this_opt+9, NULL, 0) == 0) {
1325	dev_info(dev, "override output enable: active low\n");
1326	inf->lccr3 = (inf->lccr3 & ~LCCR3_OEP) \| LCCR3_OutEnL;
1327	} else {
1328	dev_info(dev, "override output enable: active high\n");
1329	inf->lccr3 = (inf->lccr3 & ~LCCR3_OEP) \| LCCR3_OutEnH;
1330	}
1331	} else if (!strncmp(this_opt, "pixclockpol:", 12)) {
1332	if (simple_strtoul(this_opt+12, NULL, 0) == 0) {
1333	dev_info(dev, "override pixel clock polarity: falling edge\n");
1334	inf->lccr3 = (inf->lccr3 & ~LCCR3_PCP) \| LCCR3_PixFlEdg;
1335	} else {
1336	dev_info(dev, "override pixel clock polarity: rising edge\n");
1337	inf->lccr3 = (inf->lccr3 & ~LCCR3_PCP) \| LCCR3_PixRsEdg;
1338	}
1339	} else if (!strncmp(this_opt, "color", 5)) {
1340	inf->lccr0 = (inf->lccr0 & ~LCCR0_CMS) \| LCCR0_Color;
1341	} else if (!strncmp(this_opt, "mono", 4)) {
1342	inf->lccr0 = (inf->lccr0 & ~LCCR0_CMS) \| LCCR0_Mono;
1343	} else if (!strncmp(this_opt, "active", 6)) {
1344	inf->lccr0 = (inf->lccr0 & ~LCCR0_PAS) \| LCCR0_Act;
1345	} else if (!strncmp(this_opt, "passive", 7)) {
1346	inf->lccr0 = (inf->lccr0 & ~LCCR0_PAS) \| LCCR0_Pas;
1347	} else if (!strncmp(this_opt, "single", 6)) {
1348	inf->lccr0 = (inf->lccr0 & ~LCCR0_SDS) \| LCCR0_Sngl;
1349	} else if (!strncmp(this_opt, "dual", 4)) {
1350	inf->lccr0 = (inf->lccr0 & ~LCCR0_SDS) \| LCCR0_Dual;
1351	} else if (!strncmp(this_opt, "4pix", 4)) {
1352	inf->lccr0 = (inf->lccr0 & ~LCCR0_DPD) \| LCCR0_4PixMono;
1353	} else if (!strncmp(this_opt, "8pix", 4)) {
1354	inf->lccr0 = (inf->lccr0 & ~LCCR0_DPD) \| LCCR0_8PixMono;
1355	} else {
1356	dev_err(dev, "unknown option: %s\n", this_opt);
1357	return -EINVAL;
1358	}
1359	}
1360	return 0;
1361
1362	}	1388	}
1363	#endif	1389	#endif
1364		1390