diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-10-21 15:52:04 +1100 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-10-21 15:52:04 +1100 |
| commit | a02efb906d12c9d4eb2ab7c59049ba9545e5412d (patch) | |
| tree | bf1f6467978ec63a22f42299ecac2ee7f7e73336 /drivers/video/s1d13xxxfb.c | |
| parent | 84dfcb4b318463cd4883b6a19937824f49aee564 (diff) | |
| parent | 2515ddc6db8eb49a79f0fe5e67ff09ac7c81eab4 (diff) | |
Merge commit 'origin' into master
Manual merge of:
arch/powerpc/Kconfig
arch/powerpc/include/asm/page.h
Diffstat (limited to 'drivers/video/s1d13xxxfb.c')
| -rw-r--r-- | drivers/video/s1d13xxxfb.c | 23 |
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; } |