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path: root/drivers/video/s1d13xxxfb.c
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Diffstat (limited to 'drivers/video/s1d13xxxfb.c')
-rw-r--r--drivers/video/s1d13xxxfb.c23
1 files changed, 19 insertions, 4 deletions
diff --git a/drivers/video/s1d13xxxfb.c b/drivers/video/s1d13xxxfb.c
index b829dc7c5ed..a7b01d2724b 100644
--- a/drivers/video/s1d13xxxfb.c
+++ b/drivers/video/s1d13xxxfb.c
@@ -50,6 +50,11 @@
#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 .. */
+};
+
/*
* Here we define the default struct fb_fix_screeninfo
*/
@@ -538,6 +543,7 @@ s1d13xxxfb_probe(struct platform_device *pdev)
struct fb_info *info;
struct s1d13xxxfb_pdata *pdata = NULL;
int ret = 0;
+ int i;
u8 revision;
dbg("probe called: device is %p\n", pdev);
@@ -607,10 +613,19 @@ s1d13xxxfb_probe(struct platform_device *pdev)
goto bail;
}
- revision = s1d13xxxfb_readreg(default_par, S1DREG_REV_CODE);
- if ((revision >> 2) != S1D_CHIP_REV) {
- printk(KERN_INFO PFX "chip not found: %i\n", (revision >> 2));
- ret = -ENODEV;
+ revision = s1d13xxxfb_readreg(default_par, S1DREG_REV_CODE) >> 2;
+
+ ret = -ENODEV;
+
+ for (i = 0; i < ARRAY_SIZE(s1d13xxxfb_revisions); i++) {
+ if (revision == s1d13xxxfb_revisions[i])
+ ret = 0;
+ }
+
+ if (!ret)
+ printk(KERN_INFO PFX "chip revision %i\n", revision);
+ else {
+ printk(KERN_INFO PFX "unknown chip revision %i\n", revision);
goto bail;
}