aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--drivers/video/s1d13xxxfb.c48
-rw-r--r--include/video/s1d13xxxfb.h16
2 files changed, 46 insertions, 18 deletions
diff --git a/drivers/video/s1d13xxxfb.c b/drivers/video/s1d13xxxfb.c
index a7b01d2724b..0726aecf3b7 100644
--- a/drivers/video/s1d13xxxfb.c
+++ b/drivers/video/s1d13xxxfb.c
@@ -50,9 +50,22 @@
#define dbg(fmt, args...) do { } while (0)
#endif
-static const int __devinitconst s1d13xxxfb_revisions[] = {
- S1D13506_CHIP_REV, /* Rev.4 on HP Jornada 7xx S1D13506 */
- S1D13806_CHIP_REV, /* Rev.7 on .. */
+/*
+ * List of card production ids
+ */
+static const int s1d13xxxfb_prod_ids[] = {
+ S1D13505_PROD_ID,
+ S1D13506_PROD_ID,
+ S1D13806_PROD_ID,
+};
+
+/*
+ * List of card strings
+ */
+static const char *s1d13xxxfb_prod_names[] = {
+ "S1D13505",
+ "S1D13506",
+ "S1D13806",
};
/*
@@ -377,7 +390,6 @@ s1d13xxxfb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
return 0;
}
-
/* framebuffer information structures */
static struct fb_ops s1d13xxxfb_fbops = {
@@ -544,7 +556,7 @@ s1d13xxxfb_probe(struct platform_device *pdev)
struct s1d13xxxfb_pdata *pdata = NULL;
int ret = 0;
int i;
- u8 revision;
+ u8 revision, prod_id;
dbg("probe called: device is %p\n", pdev);
@@ -613,19 +625,31 @@ s1d13xxxfb_probe(struct platform_device *pdev)
goto bail;
}
- revision = s1d13xxxfb_readreg(default_par, S1DREG_REV_CODE) >> 2;
-
+ /* production id is top 6 bits */
+ prod_id = s1d13xxxfb_readreg(default_par, S1DREG_REV_CODE) >> 2;
+ /* revision id is lower 2 bits */
+ revision = s1d13xxxfb_readreg(default_par, S1DREG_REV_CODE) & 0x3;
ret = -ENODEV;
- for (i = 0; i < ARRAY_SIZE(s1d13xxxfb_revisions); i++) {
- if (revision == s1d13xxxfb_revisions[i])
+ for (i = 0; i < ARRAY_SIZE(s1d13xxxfb_prod_ids); i++) {
+ if (prod_id == s1d13xxxfb_prod_ids[i]) {
+ /* looks like we got it in our list */
+ default_par->prod_id = prod_id;
+ default_par->revision = revision;
ret = 0;
+ break;
+ }
}
- if (!ret)
+ if (!ret) {
+ printk(KERN_INFO PFX "chip production id %i = %s\n",
+ prod_id, s1d13xxxfb_prod_names[i]);
printk(KERN_INFO PFX "chip revision %i\n", revision);
- else {
- printk(KERN_INFO PFX "unknown chip revision %i\n", revision);
+ } else {
+ printk(KERN_INFO PFX
+ "unknown chip production id %i, revision %i\n",
+ prod_id, revision);
+ printk(KERN_INFO PFX "please contant maintainer\n");
goto bail;
}
diff --git a/include/video/s1d13xxxfb.h b/include/video/s1d13xxxfb.h
index fe41b840794..c3b2a2aa714 100644
--- a/include/video/s1d13xxxfb.h
+++ b/include/video/s1d13xxxfb.h
@@ -14,13 +14,16 @@
#define S1D13XXXFB_H
#define S1D_PALETTE_SIZE 256
-#define S1D13506_CHIP_REV 4 /* expected chip revision number for s1d13506 */
-#define S1D13806_CHIP_REV 7 /* expected chip revision number for s1d13806 */
-#define S1D_FBID "S1D13806"
-#define S1D_DEVICENAME "s1d13806fb"
+#define S1D_FBID "S1D13xxx"
+#define S1D_DEVICENAME "s1d13xxxfb"
+
+/* S1DREG_REV_CODE register = prod_id (6 bits) + revision (2 bits) */
+#define S1D13505_PROD_ID 0x3 /* 000011 */
+#define S1D13506_PROD_ID 0x4 /* 000100 */
+#define S1D13806_PROD_ID 0x7 /* 000111 */
/* register definitions (tested on s1d13896) */
-#define S1DREG_REV_CODE 0x0000 /* Revision Code Register */
+#define S1DREG_REV_CODE 0x0000 /* Prod + Rev Code Register */
#define S1DREG_MISC 0x0001 /* Miscellaneous Register */
#define S1DREG_GPIO_CNF0 0x0004 /* General IO Pins Configuration Register 0 */
#define S1DREG_GPIO_CNF1 0x0005 /* General IO Pins Configuration Register 1 */
@@ -141,10 +144,11 @@ struct s1d13xxxfb_regval {
u8 value;
};
-
struct s1d13xxxfb_par {
void __iomem *regs;
unsigned char display;
+ unsigned char prod_id;
+ unsigned char revision;
unsigned int pseudo_palette[16];
#ifdef CONFIG_PM