| Message ID | 1380108661-22702-1-git-send-email-broonie@kernel.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Wednesday, September 25, 2013 8:31 PM, Mark Brown wrote: > > From: Mark Brown <broonie@linaro.org> > > The DSI-CM driver uses the backlight class so needs to build depend on it. > > Signed-off-by: Mark Brown <broonie@linaro.org> Reviewed-by: Jingoo Han <jg1.han@samsung.com> I checked that the following build errors are removed. drivers/video/omap2/displays-new/panel-dsi-cm.c:1257: undefined reference to `backlight_device_register' drivers/video/omap2/displays-new/panel-dsi-cm.c:1283: undefined reference to `backlight_device_unregister' drivers/built-in.o: In function `dsicm_remove': drivers/video/omap2/displays-new/panel-dsi-cm.c:1309: undefined reference to `backlight_device_unregister' Thank you. Best regards, Jingoo Han > --- > drivers/video/omap2/displays-new/Kconfig | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/video/omap2/displays-new/Kconfig b/drivers/video/omap2/displays-new/Kconfig > index 6c90885..10b25e7 100644 > --- a/drivers/video/omap2/displays-new/Kconfig > +++ b/drivers/video/omap2/displays-new/Kconfig > @@ -35,6 +35,7 @@ config DISPLAY_PANEL_DPI > > config DISPLAY_PANEL_DSI_CM > tristate "Generic DSI Command Mode Panel" > + depends on BACKLIGHT_CLASS_DEVICE > help > Driver for generic DSI command mode panels. > > -- > 1.8.4.rc3 -- To unsubscribe from this list: send the line "unsubscribe linux-fbdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On 25/09/13 14:31, Mark Brown wrote: > From: Mark Brown <broonie@linaro.org> > > The DSI-CM driver uses the backlight class so needs to build depend on it. > > Signed-off-by: Mark Brown <broonie@linaro.org> > --- > drivers/video/omap2/displays-new/Kconfig | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/video/omap2/displays-new/Kconfig b/drivers/video/omap2/displays-new/Kconfig > index 6c90885..10b25e7 100644 > --- a/drivers/video/omap2/displays-new/Kconfig > +++ b/drivers/video/omap2/displays-new/Kconfig > @@ -35,6 +35,7 @@ config DISPLAY_PANEL_DPI > > config DISPLAY_PANEL_DSI_CM > tristate "Generic DSI Command Mode Panel" > + depends on BACKLIGHT_CLASS_DEVICE > help > Driver for generic DSI command mode panels. > > Thanks, I'll queue for 3.12 fixes. I wish we could "select" instead of "depends on"... Tomi
On Thu, Sep 26, 2013 at 11:36:26AM +0300, Tomi Valkeinen wrote:
> I wish we could "select" instead of "depends on"...
We probably could.
On 26/09/13 13:12, Mark Brown wrote: > On Thu, Sep 26, 2013 at 11:36:26AM +0300, Tomi Valkeinen wrote: > >> I wish we could "select" instead of "depends on"... > > We probably could. I'm not so sure. If we select BACKLIGHT_CLASS_DEVICE, we could end up compiling backlight.c without fbdev, and backlight.c uses fb's funcs. The funny thing is, there is FB_BACKLIGHT, which seems to be designed to be selectable (and is selected). That one depends on FB, but if I'm not mistaken, that dependency does not do anything if FB_BACKLIGHT is selected. FB_BACKLIGHT in turn selects both BACKLIGHT_LCD_SUPPORT and BACKLIGHT_CLASS_DEVICE, neither of which seem to be designed to be selectable. I think that's a bit broken. Anyway, I guess it's better to "depend on" here, to be on the safe side. Tomi
diff --git a/drivers/video/omap2/displays-new/Kconfig b/drivers/video/omap2/displays-new/Kconfig index 6c90885..10b25e7 100644 --- a/drivers/video/omap2/displays-new/Kconfig +++ b/drivers/video/omap2/displays-new/Kconfig @@ -35,6 +35,7 @@ config DISPLAY_PANEL_DPI config DISPLAY_PANEL_DSI_CM tristate "Generic DSI Command Mode Panel" + depends on BACKLIGHT_CLASS_DEVICE help Driver for generic DSI command mode panels.