diff options
| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2012-09-27 17:38:18 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-11-28 16:54:46 +0400 |
| commit | d8658bca2e5696df2b6c69bc5538f8fe54e4a01e (patch) | |
| tree | cc46693ada963935ebccfdc0533c6b795adf4964 /drivers/media/platform/omap3isp | |
| parent | b057c3c32229c0db914c03eefb2579d877612926 (diff) | |
| download | linux-d8658bca2e5696df2b6c69bc5538f8fe54e4a01e.tar.xz | |
[media] omap3isp: Replace cpu_is_omap3630() with ISP revision check
Drivers must not rely on cpu_is_omap* macros (they will soon become
private). Use the ISP revision instead to identify the hardware.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/platform/omap3isp')
| -rw-r--r-- | drivers/media/platform/omap3isp/isp.c | 25 |
1 files changed, 16 insertions, 9 deletions
diff --git a/drivers/media/platform/omap3isp/isp.c b/drivers/media/platform/omap3isp/isp.c index 7da622ed86ed..b34bf928d80c 100644 --- a/drivers/media/platform/omap3isp/isp.c +++ b/drivers/media/platform/omap3isp/isp.c @@ -1350,10 +1350,7 @@ static int isp_enable_clocks(struct isp_device *isp) * has to be twice of what is set on OMAP3430 to get * the required value for cam_mclk */ - if (cpu_is_omap3630()) - divisor = 1; - else - divisor = 2; + divisor = isp->revision == ISP_REVISION_15_0 ? 1 : 2; r = clk_prepare_enable(isp->clock[ISP_CLK_CAM_ICK]); if (r) { @@ -2111,7 +2108,11 @@ static int __devinit isp_probe(struct platform_device *pdev) isp->isp_csiphy1.vdd = regulator_get(&pdev->dev, "VDD_CSIPHY1"); isp->isp_csiphy2.vdd = regulator_get(&pdev->dev, "VDD_CSIPHY2"); - /* Clocks */ + /* Clocks + * + * The ISP clock tree is revision-dependent. We thus need to enable ICLK + * manually to read the revision before calling __omap3isp_get(). + */ ret = isp_map_mem_resource(pdev, isp, OMAP3_ISP_IOMEM_MAIN); if (ret < 0) goto error; @@ -2120,6 +2121,16 @@ static int __devinit isp_probe(struct platform_device *pdev) if (ret < 0) goto error; + ret = clk_enable(isp->clock[ISP_CLK_CAM_ICK]); + if (ret < 0) + goto error; + + isp->revision = isp_reg_readl(isp, OMAP3_ISP_IOMEM_MAIN, ISP_REVISION); + dev_info(isp->dev, "Revision %d.%d found\n", + (isp->revision & 0xf0) >> 4, isp->revision & 0x0f); + + clk_disable(isp->clock[ISP_CLK_CAM_ICK]); + if (__omap3isp_get(isp, false) == NULL) { ret = -ENODEV; goto error; @@ -2130,10 +2141,6 @@ static int __devinit isp_probe(struct platform_device *pdev) goto error_isp; /* Memory resources */ - isp->revision = isp_reg_readl(isp, OMAP3_ISP_IOMEM_MAIN, ISP_REVISION); - dev_info(isp->dev, "Revision %d.%d found\n", - (isp->revision & 0xf0) >> 4, isp->revision & 0x0f); - for (m = 0; m < ARRAY_SIZE(isp_res_maps); m++) if (isp->revision == isp_res_maps[m].isp_rev) break; |