[PATCH 01/13] video: sh_mobile_lcdcfb depends on meram

[PATCH 01/13] video: sh_mobile_lcdcfb depends on meram

[Peter Griffin]

From: Arnd Bergmann <arnd@arndb.de>

The sh_mobile_lcdcfb driver calls interfaces provided
by the corresponding "meram" helper. This fails if meram
is a module but lcdcfb is built-in.

To work around it, this uses special Kconfig magic to
only allow lcdcfb to be built if
a) both are modules,
b) meram is built-in, or
c) meram is disabled and the helpers stubbed out

Changing meram from 'y' to 'm' now forces clcd to
be a module as well, which seems to be the desired
behavior.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Cc: Simon Horman <horms+renesas@verge.net.au>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: linux-sh@vger.kernel.org
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: linux-fbdev@vger.kernel.org
---
 drivers/video/fbdev/Kconfig |    1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig
index e1f4727..a4116bf 100644
--- a/drivers/video/fbdev/Kconfig
+++ b/drivers/video/fbdev/Kconfig
@@ -1971,6 +1971,7 @@ config FB_W100
 config FB_SH_MOBILE_LCDC
 	tristate "SuperH Mobile LCDC framebuffer support"
 	depends on FB && (SUPERH || ARCH_SHMOBILE) && HAVE_CLK
+	depends on FB_SH_MOBILE_MERAM || !FB_SH_MOBILE_MERAM
 	select FB_SYS_FILLRECT
 	select FB_SYS_COPYAREA
 	select FB_SYS_IMAGEBLIT
-- 
1.7.9.5

[PATCH 02/13] video: omap2dss: fix LPAE warnings

[Peter Griffin]

From: Arnd Bergmann <arnd@arndb.de>

If LPAE is enabled, dma_addr_t is 64 bit, so we have to
change a few type for everything in this driver to match
again.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: linux-fbdev@vger.kernel.org
Cc: linux-omap@vger.kernel.org
---
 drivers/video/fbdev/omap2/dss/dispc.c |    6 +++---
 include/video/omapdss.h               |    4 ++--
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/video/fbdev/omap2/dss/dispc.c b/drivers/video/fbdev/omap2/dss/dispc.c
index f18397c..4fe1431 100644
--- a/drivers/video/fbdev/omap2/dss/dispc.c
+++ b/drivers/video/fbdev/omap2/dss/dispc.c
@@ -2577,9 +2577,9 @@ int dispc_ovl_setup(enum omap_plane plane, const struct omap_overlay_info *oi,
 
 	channel = dispc_ovl_get_channel_out(plane);
 
-	DSSDBG("dispc_ovl_setup %d, pa %x, pa_uv %x, sw %d, %d,%d, %dx%d -> "
-		"%dx%d, cmode %x, rot %d, mir %d, chan %d repl %d\n",
-		plane, oi->paddr, oi->p_uv_addr, oi->screen_width, oi->pos_x,
+	DSSDBG("dispc_ovl_setup %d, pa %pad, pa_uv %pad, sw %d, %d,%d, %dx%d ->"
+		" %dx%d, cmode %x, rot %d, mir %d, chan %d repl %d\n",
+		plane, &oi->paddr, &oi->p_uv_addr, oi->screen_width, oi->pos_x,
 		oi->pos_y, oi->width, oi->height, oi->out_width, oi->out_height,
 		oi->color_mode, oi->rotation, oi->mirror, channel, replication);
 
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 6adb445..ded61a9 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -388,8 +388,8 @@ struct omap_dss_cpr_coefs {
 };
 
 struct omap_overlay_info {
-	u32 paddr;
-	u32 p_uv_addr;  /* for NV12 format */
+	dma_addr_t paddr;
+	dma_addr_t p_uv_addr;  /* for NV12 format */
 	u16 screen_width;
 	u16 width;
 	u16 height;
-- 
1.7.9.5

[PATCH 03/13] video: clarify I2C dependencies

[Peter Griffin]

From: Arnd Bergmann <arnd@arndb.de>

We can only use I2C support in frame buffer drivers if
Either I2C is built-in, or both I2C and the driver itself
are loadable modules.

Fix this dependency for MB862XX and CyberPro frame buffers.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: linux-fbdev@vger.kernel.org
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Anatolij Gustschin <agust@denx.de>
---
 drivers/video/fbdev/Kconfig |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig
index a4116bf..5577a94 100644
--- a/drivers/video/fbdev/Kconfig
+++ b/drivers/video/fbdev/Kconfig
@@ -360,6 +360,7 @@ config FB_CYBER2000_DDC
 config FB_CYBER2000_I2C
 	bool "CyberPro 2000/2010/5000 I2C support"
 	depends on FB_CYBER2000 && I2C && ARCH_NETWINDER
+	depends on I2C=y || FB_CYBER2000=m
 	select I2C_ALGOBIT
 	help
 	  Enable support for the I2C video decoder interface on the
@@ -2296,6 +2297,7 @@ endchoice
 config FB_MB862XX_I2C
 	bool "Support I2C bus on MB862XX GDC"
 	depends on FB_MB862XX && I2C
+	depends on FB_MB862XX=m || I2C=y
 	default y
 	help
 	  Selecting this option adds Coral-P(A)/Lime GDC I2C bus adapter
-- 
1.7.9.5

Re: [PATCH 03/13] video: clarify I2C dependencies

[Russell King - ARM Linux]

On Thu, Apr 24, 2014 at 01:28:19PM +0100, Peter Griffin wrote:
> From: Arnd Bergmann <arnd@arndb.de>
> 
> We can only use I2C support in frame buffer drivers if
> Either I2C is built-in, or both I2C and the driver itself
> are loadable modules.

Why?

-- 
FTTC broadband for 0.8mile line: now at 9.7Mbps down 460kbps up... slowly
improving, and getting towards what was expected from it.

Re: [PATCH 03/13] video: clarify I2C dependencies

[Arnd Bergmann]

On Thursday 24 April 2014 13:32:35 Russell King - ARM Linux wrote:
> On Thu, Apr 24, 2014 at 01:28:19PM +0100, Peter Griffin wrote:
> > From: Arnd Bergmann <arnd@arndb.de>
> > 
> > We can only use I2C support in frame buffer drivers if
> > Either I2C is built-in, or both I2C and the driver itself
> > are loadable modules.
> 
> Why?


If I2C is a loadable module, and the I2C support of the framebuffer
driver is built-in, you get a link error when building vmlinux:

drivers/built-in.o: In function `cyberpro_pci_remove':
:(.text+0x1ea5c): undefined reference to `i2c_del_adapter'
drivers/built-in.o: In function `cyberpro_pci_probe':
:(.text+0x20224): undefined reference to `i2c_bit_add_bus'
:(.text+0x20240): undefined reference to `i2c_del_adapter'
make[2]: *** [vmlinux] Error 1

It's probably a good idea to mention that in the changeset
text.

	Arnd

[PATCH 04/13] video/omap: fix modular build

[Peter Griffin]

From: Arnd Bergmann <arnd@arndb.de>

The framebuffer layer can be a loadable module, which forces
omapfb to be a module as well. However, this breaks the lcd
drivers, which are linked into the omapfb driver but each
have their own module_init() function. To solve this,
we split out the lcd drivers into separate modules and
export omapfb_register_panel, which is the only interface
required between the main omapfb driver and the lcd panel
drivers.

We also have to introduce a new Kconfig symbol for H3, since
that lcd driver has a dependency on TPS65010, which we can
express better in Kconfig than Makefile syntax.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: linux-fbdev@vger.kernel.org
Cc: linux-omap@vger.kernel.org
---
 drivers/video/fbdev/omap/Kconfig       |    9 +++++++++
 drivers/video/fbdev/omap/Makefile      |   23 ++++++++++++-----------
 drivers/video/fbdev/omap/omapfb_main.c |    1 +
 include/linux/omap-dma.h               |    2 +-
 4 files changed, 23 insertions(+), 12 deletions(-)

diff --git a/drivers/video/fbdev/omap/Kconfig b/drivers/video/fbdev/omap/Kconfig
index 0bc3a93..18c4cb0 100644
--- a/drivers/video/fbdev/omap/Kconfig
+++ b/drivers/video/fbdev/omap/Kconfig
@@ -39,6 +39,15 @@ config FB_OMAP_LCD_MIPID
 	  the Mobile Industry Processor Interface DBI-C/DCS
 	  specification. (Supported LCDs: Philips LPH8923, Sharp LS041Y3)
 
+config FB_OMAP_LCD_H3
+	bool "TPS65010 LCD controller on OMAP-H3"
+	depends on MACH_OMAP_H3
+	depends on TPS65010
+	default y
+	help
+	  Say Y here if you want to have support for the LCD on the
+	  H3 board.
+
 config FB_OMAP_DMA_TUNE
         bool "Set DMA SDRAM access priority high"
         depends on FB_OMAP
diff --git a/drivers/video/fbdev/omap/Makefile b/drivers/video/fbdev/omap/Makefile
index 1927faf..732e071 100644
--- a/drivers/video/fbdev/omap/Makefile
+++ b/drivers/video/fbdev/omap/Makefile
@@ -10,17 +10,18 @@ objs-y$(CONFIG_FB_OMAP_LCDC_EXTERNAL) += sossi.o
 
 objs-y$(CONFIG_FB_OMAP_LCDC_HWA742) += hwa742.o
 
-objs-y$(CONFIG_MACH_AMS_DELTA) += lcd_ams_delta.o
-objs-y$(CONFIG_MACH_OMAP_H3) += lcd_h3.o
-objs-y$(CONFIG_MACH_OMAP_PALMTE) += lcd_palmte.o
-objs-y$(CONFIG_MACH_OMAP_PALMTT) += lcd_palmtt.o
-objs-y$(CONFIG_MACH_OMAP_PALMZ71) += lcd_palmz71.o
-objs-$(CONFIG_ARCH_OMAP16XX)$(CONFIG_MACH_OMAP_INNOVATOR) += lcd_inn1610.o
-objs-$(CONFIG_ARCH_OMAP15XX)$(CONFIG_MACH_OMAP_INNOVATOR) += lcd_inn1510.o
-objs-y$(CONFIG_MACH_OMAP_OSK) += lcd_osk.o
-
-objs-y$(CONFIG_FB_OMAP_LCD_MIPID) += lcd_mipid.o
-objs-y$(CONFIG_MACH_HERALD) += lcd_htcherald.o
+lcds-y$(CONFIG_MACH_AMS_DELTA) += lcd_ams_delta.o
+lcds-y$(CONFIG_FB_OMAP_LCD_H3) += lcd_h3.o
+lcds-y$(CONFIG_MACH_OMAP_PALMTE) += lcd_palmte.o
+lcds-y$(CONFIG_MACH_OMAP_PALMTT) += lcd_palmtt.o
+lcds-y$(CONFIG_MACH_OMAP_PALMZ71) += lcd_palmz71.o
+lcds-$(CONFIG_ARCH_OMAP16XX)$(CONFIG_MACH_OMAP_INNOVATOR) += lcd_inn1610.o
+lcds-$(CONFIG_ARCH_OMAP15XX)$(CONFIG_MACH_OMAP_INNOVATOR) += lcd_inn1510.o
+lcds-y$(CONFIG_MACH_OMAP_OSK) += lcd_osk.o
+
+lcds-y$(CONFIG_FB_OMAP_LCD_MIPID) += lcd_mipid.o
+lcds-y$(CONFIG_MACH_HERALD) += lcd_htcherald.o
 
 omapfb-objs := $(objs-yy)
 
+obj-$(CONFIG_FB_OMAP) += $(lcds-yy)
diff --git a/drivers/video/fbdev/omap/omapfb_main.c b/drivers/video/fbdev/omap/omapfb_main.c
index e4fc6d9..d8d028d 100644
--- a/drivers/video/fbdev/omap/omapfb_main.c
+++ b/drivers/video/fbdev/omap/omapfb_main.c
@@ -1823,6 +1823,7 @@ void omapfb_register_panel(struct lcd_panel *panel)
 	if (fbdev_pdev != NULL)
 		omapfb_do_probe(fbdev_pdev, fbdev_panel);
 }
+EXPORT_SYMBOL_GPL(omapfb_register_panel);
 
 /* Called when the device is being detached from the driver */
 static int omapfb_remove(struct platform_device *pdev)
diff --git a/include/linux/omap-dma.h b/include/linux/omap-dma.h
index 41a13e7..0a1a2e2 100644
--- a/include/linux/omap-dma.h
+++ b/include/linux/omap-dma.h
@@ -393,7 +393,7 @@ extern int omap_modify_dma_chain_params(int chain_id,
 extern int omap_dma_chain_status(int chain_id);
 #endif
 
-#if defined(CONFIG_ARCH_OMAP1) && defined(CONFIG_FB_OMAP)
+#if defined(CONFIG_ARCH_OMAP1) && IS_ENABLED(CONFIG_FB_OMAP)
 #include <mach/lcd_dma.h>
 #else
 static inline int omap_lcd_dma_running(void)
-- 
1.7.9.5

[PATCH 05/13] video/mbx: fix building debugfs support

[Peter Griffin]

From: Arnd Bergmann <arnd@arndb.de>

The mbx framebuffer debugfs support apparently hasn't been able
to build for a long time, at least since 2006 when the u.generic_ip
field in the inode was removed. This fixes the obvious bug, and
also makes it possible to build the driver as a module when
debugfs support is enabled, by simply including the C file.
It's ugly, but it won't make the driver any worse than it
already is, and doesn't require a more invasive change that
might break it further.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: linux-fbdev@vger.kernel.org
Cc: Raphael Assenat <raph@8d.com>
Cc: Mike Rapoport <mike@compulab.co.il>
---
 drivers/video/fbdev/mbx/Makefile     |    3 +--
 drivers/video/fbdev/mbx/mbxdebugfs.c |    2 +-
 drivers/video/fbdev/mbx/mbxfb.c      |    2 ++
 3 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/video/fbdev/mbx/Makefile b/drivers/video/fbdev/mbx/Makefile
index 16c1165..d7ae5a9 100644
--- a/drivers/video/fbdev/mbx/Makefile
+++ b/drivers/video/fbdev/mbx/Makefile
@@ -1,4 +1,3 @@
 # Makefile for the 2700G controller driver.
 
-obj-$(CONFIG_FB_MBX)	   += mbxfb.o
-obj-$(CONFIG_FB_MBX_DEBUG) += mbxfbdebugfs.o
+obj-y 			+= mbxfb.o
diff --git a/drivers/video/fbdev/mbx/mbxdebugfs.c b/drivers/video/fbdev/mbx/mbxdebugfs.c
index 4449f24..e3bc00a 100644
--- a/drivers/video/fbdev/mbx/mbxdebugfs.c
+++ b/drivers/video/fbdev/mbx/mbxdebugfs.c
@@ -17,7 +17,7 @@ struct mbxfb_debugfs_data {
 
 static int open_file_generic(struct inode *inode, struct file *file)
 {
-	file->private_data = inode->u.generic_ip;
+	file->private_data = inode->i_private;
 	return 0;
 }
 
diff --git a/drivers/video/fbdev/mbx/mbxfb.c b/drivers/video/fbdev/mbx/mbxfb.c
index f0a5392..2bd52ed 100644
--- a/drivers/video/fbdev/mbx/mbxfb.c
+++ b/drivers/video/fbdev/mbx/mbxfb.c
@@ -877,6 +877,8 @@ static int mbxfb_resume(struct platform_device *dev)
 #ifndef CONFIG_FB_MBX_DEBUG
 #define mbxfb_debugfs_init(x)	do {} while(0)
 #define mbxfb_debugfs_remove(x)	do {} while(0)
+#else
+#include "mbxdebugfs.c"
 #endif
 
 #define res_size(_r) (((_r)->end - (_r)->start) + 1)
-- 
1.7.9.5

[PATCH 06/13] video: export fb_prepare_logo

[Peter Griffin]

From: Arnd Bergmann <arnd@arndb.de>

Some drivers that may be loadable modules use the fb_prepare_logo
function, so we have to export it. Found during randconfig
builds with mmpfb.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: linux-fbdev@vger.kernel.org
---
 drivers/video/fbdev/core/fbmem.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index b6d5008..479fe2a 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -674,6 +674,7 @@ int fb_show_logo(struct fb_info *info, int rotate)
 int fb_prepare_logo(struct fb_info *info, int rotate) { return 0; }
 int fb_show_logo(struct fb_info *info, int rotate) { return 0; }
 #endif /* CONFIG_LOGO */
+EXPORT_SYMBOL(fb_prepare_logo);
 EXPORT_SYMBOL(fb_show_logo);
 
 static void *fb_seq_start(struct seq_file *m, loff_t *pos)
-- 
1.7.9.5

[PATCH 07/13] video: atmel needs FB_BACKLIGHT

[Peter Griffin]

From: Arnd Bergmann <arnd@arndb.de>

The atmel frame buffer driver doesn't build if FB_BACKLIGHT
is disabled, so select it here as we do for lots of other
drivers.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: linux-fbdev@vger.kernel.org
---
 drivers/video/fbdev/Kconfig |    1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig
index 5577a94..e593365 100644
--- a/drivers/video/fbdev/Kconfig
+++ b/drivers/video/fbdev/Kconfig
@@ -967,6 +967,7 @@ config FB_S1D13XXX
 config FB_ATMEL
 	tristate "AT91/AT32 LCD Controller support"
 	depends on FB && HAVE_FB_ATMEL
+	select FB_BACKLIGHT
 	select FB_CFB_FILLRECT
 	select FB_CFB_COPYAREA
 	select FB_CFB_IMAGEBLIT
-- 
1.7.9.5

[PATCH 08/13] video/backlight: LM3630A needs PWM

[Peter Griffin]

The LM3630A driver cannot be successfully built if we don't
enable the PWM subsystem. This patch makes that dependency
explicit in Kconfig and prevents broken randconfig builds.

Based on Arnd Bergmann patch but split out into seperate
commits per driver based on feedback.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Cc: Jingoo Han <jg1.han@samsung.com>
Cc: Bryan Wu <cooloney@gmail.com>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: linux-fbdev@vger.kernel.org
---
 drivers/video/backlight/Kconfig |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index 5a3eb2e..4791af7 100644
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -370,7 +370,7 @@ config BACKLIGHT_AAT2870
 
 config BACKLIGHT_LM3630A
 	tristate "Backlight Driver for LM3630A"
-	depends on BACKLIGHT_CLASS_DEVICE && I2C
+	depends on BACKLIGHT_CLASS_DEVICE && I2C && PWM
 	select REGMAP_I2C
 	help
 	  This supports TI LM3630A Backlight Driver
-- 
1.7.9.5

Re: [PATCH 08/13] video/backlight: LM3630A needs PWM

[Bryan Wu]

On Thu, Apr 24, 2014 at 5:28 AM, Peter Griffin <peter.griffin@linaro.org> wrote:
> The LM3630A driver cannot be successfully built if we don't
> enable the PWM subsystem. This patch makes that dependency
> explicit in Kconfig and prevents broken randconfig builds.
>
> Based on Arnd Bergmann patch but split out into seperate
> commits per driver based on feedback.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
> Cc: Jingoo Han <jg1.han@samsung.com>
> Cc: Bryan Wu <cooloney@gmail.com>
> Cc: Lee Jones <lee.jones@linaro.org>
> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
> Cc: linux-fbdev@vger.kernel.org
> ---
>  drivers/video/backlight/Kconfig |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
> index 5a3eb2e..4791af7 100644
> --- a/drivers/video/backlight/Kconfig
> +++ b/drivers/video/backlight/Kconfig
> @@ -370,7 +370,7 @@ config BACKLIGHT_AAT2870
>
>  config BACKLIGHT_LM3630A
>         tristate "Backlight Driver for LM3630A"
> -       depends on BACKLIGHT_CLASS_DEVICE && I2C
> +       depends on BACKLIGHT_CLASS_DEVICE && I2C && PWM

Looks good to me,
Acked-by: Bryan Wu <cooloney@gmail.com>

>         select REGMAP_I2C
>         help
>           This supports TI LM3630A Backlight Driver
> --
> 1.7.9.5
>

Re: [PATCH 08/13] video/backlight: LM3630A needs PWM

[Jingoo Han]

On Thursday, April 24, 2014 9:28 PM, Peter Griffin wrote:
> 
> The LM3630A driver cannot be successfully built if we don't
> enable the PWM subsystem. This patch makes that dependency
> explicit in Kconfig and prevents broken randconfig builds.
> 
> Based on Arnd Bergmann patch but split out into seperate
> commits per driver based on feedback.
> 
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
> Cc: Jingoo Han <jg1.han@samsung.com>

Acked-by: Jingoo Han <jg1.han@samsung.com>

Best regards,
Jingoo Han

> Cc: Bryan Wu <cooloney@gmail.com>
> Cc: Lee Jones <lee.jones@linaro.org>
> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
> Cc: linux-fbdev@vger.kernel.org
> ---
>  drivers/video/backlight/Kconfig |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
> index 5a3eb2e..4791af7 100644
> --- a/drivers/video/backlight/Kconfig
> +++ b/drivers/video/backlight/Kconfig
> @@ -370,7 +370,7 @@ config BACKLIGHT_AAT2870
> 
>  config BACKLIGHT_LM3630A
>  	tristate "Backlight Driver for LM3630A"
> -	depends on BACKLIGHT_CLASS_DEVICE && I2C
> +	depends on BACKLIGHT_CLASS_DEVICE && I2C && PWM
>  	select REGMAP_I2C
>  	help
>  	  This supports TI LM3630A Backlight Driver
> --
> 1.7.9.5

Re: [PATCH 08/13] video/backlight: LM3630A needs PWM

[Lee Jones]

> The LM3630A driver cannot be successfully built if we don't
> enable the PWM subsystem. This patch makes that dependency
> explicit in Kconfig and prevents broken randconfig builds.
> 
> Based on Arnd Bergmann patch but split out into seperate
> commits per driver based on feedback.
> 
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
> Cc: Jingoo Han <jg1.han@samsung.com>
> Cc: Bryan Wu <cooloney@gmail.com>
> Cc: Lee Jones <lee.jones@linaro.org>
> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
> Cc: linux-fbdev@vger.kernel.org
> ---
>  drivers/video/backlight/Kconfig |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Applied thanks.

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog

[PATCH 09/13] video/backlight: LP8788 needs PWM

[Peter Griffin]

The LP8788 driver cannot be successfully built if we don't
enable the PWM subsystem. This patch makes that dependency
explicit in Kconfig and prevents broken randconfig builds.

Based on Arnd Bergmann patch but split out into seperate
commits per driver based on feedback.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Cc: Milo Kim <milo.kim@ti.com>
Cc: Jingoo Han <jg1.han@samsung.com>
Cc: Bryan Wu <cooloney@gmail.com>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: linux-fbdev@vger.kernel.org
---
 drivers/video/backlight/Kconfig |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index 4791af7..ac6bc28 100644
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -393,7 +393,7 @@ config BACKLIGHT_LP855X
 
 config BACKLIGHT_LP8788
 	tristate "Backlight driver for TI LP8788 MFD"
-	depends on BACKLIGHT_CLASS_DEVICE && MFD_LP8788
+	depends on BACKLIGHT_CLASS_DEVICE && MFD_LP8788 && PWM
 	help
 	  This supports TI LP8788 backlight driver.
 
-- 
1.7.9.5

Re: [PATCH 09/13] video/backlight: LP8788 needs PWM

[Bryan Wu]

On Thu, Apr 24, 2014 at 5:28 AM, Peter Griffin <peter.griffin@linaro.org> wrote:
> The LP8788 driver cannot be successfully built if we don't
> enable the PWM subsystem. This patch makes that dependency
> explicit in Kconfig and prevents broken randconfig builds.
>
> Based on Arnd Bergmann patch but split out into seperate
> commits per driver based on feedback.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
> Cc: Milo Kim <milo.kim@ti.com>
> Cc: Jingoo Han <jg1.han@samsung.com>
> Cc: Bryan Wu <cooloney@gmail.com>
> Cc: Lee Jones <lee.jones@linaro.org>
> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
> Cc: linux-fbdev@vger.kernel.org
> ---
>  drivers/video/backlight/Kconfig |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
> index 4791af7..ac6bc28 100644
> --- a/drivers/video/backlight/Kconfig
> +++ b/drivers/video/backlight/Kconfig
> @@ -393,7 +393,7 @@ config BACKLIGHT_LP855X
>
>  config BACKLIGHT_LP8788
>         tristate "Backlight driver for TI LP8788 MFD"
> -       depends on BACKLIGHT_CLASS_DEVICE && MFD_LP8788
> +       depends on BACKLIGHT_CLASS_DEVICE && MFD_LP8788 && PWM

Looks good to me,
Acked-by: Bryan Wu <cooloney@gmail.com>

>         help
>           This supports TI LP8788 backlight driver.
>
> --
> 1.7.9.5
>

Re: [PATCH 09/13] video/backlight: LP8788 needs PWM

[Milo Kim]

On 04/24/2014 09:28 PM, Peter Griffin wrote:
> The LP8788 driver cannot be successfully built if we don't
> enable the PWM subsystem. This patch makes that dependency
> explicit in Kconfig and prevents broken randconfig builds.
>
> Based on Arnd Bergmann patch but split out into seperate
> commits per driver based on feedback.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> Signed-off-by: Peter Griffin <peter.griffin@linaro.org>

Thanks!

Acked-by: Milo Kim <milo.kim@ti.com>

Re: [PATCH 09/13] video/backlight: LP8788 needs PWM

[Jingoo Han]

On Thursday, April 24, 2014 9:28 PM, Peter Griffin wrote:
> 
> The LP8788 driver cannot be successfully built if we don't
> enable the PWM subsystem. This patch makes that dependency
> explicit in Kconfig and prevents broken randconfig builds.
> 
> Based on Arnd Bergmann patch but split out into seperate
> commits per driver based on feedback.
> 
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
> Cc: Milo Kim <milo.kim@ti.com>
> Cc: Jingoo Han <jg1.han@samsung.com>

Acked-by: Jingoo Han <jg1.han@samsung.com>

Best regards,
Jingoo Han

> Cc: Bryan Wu <cooloney@gmail.com>
> Cc: Lee Jones <lee.jones@linaro.org>
> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
> Cc: linux-fbdev@vger.kernel.org
> ---
>  drivers/video/backlight/Kconfig |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
> index 4791af7..ac6bc28 100644
> --- a/drivers/video/backlight/Kconfig
> +++ b/drivers/video/backlight/Kconfig
> @@ -393,7 +393,7 @@ config BACKLIGHT_LP855X
> 
>  config BACKLIGHT_LP8788
>  	tristate "Backlight driver for TI LP8788 MFD"
> -	depends on BACKLIGHT_CLASS_DEVICE && MFD_LP8788
> +	depends on BACKLIGHT_CLASS_DEVICE && MFD_LP8788 && PWM
>  	help
>  	  This supports TI LP8788 backlight driver.
> 
> --
> 1.7.9.5

Re: [PATCH 09/13] video/backlight: LP8788 needs PWM

[Lee Jones]

> The LP8788 driver cannot be successfully built if we don't
> enable the PWM subsystem. This patch makes that dependency
> explicit in Kconfig and prevents broken randconfig builds.
> 
> Based on Arnd Bergmann patch but split out into seperate
> commits per driver based on feedback.
> 
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
> Cc: Milo Kim <milo.kim@ti.com>
> Cc: Jingoo Han <jg1.han@samsung.com>
> Cc: Bryan Wu <cooloney@gmail.com>
> Cc: Lee Jones <lee.jones@linaro.org>
> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
> Cc: linux-fbdev@vger.kernel.org
> ---
>  drivers/video/backlight/Kconfig |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Applied, thanks.

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog

[PATCH 10/13] video/pxa: LCD_CORGI needs BACKLIGHT_CLASS_DEVICE

[Peter Griffin]

From: Arnd Bergmann <arnd@arndb.de>

This fixes a randconfig build error when BACKLIGHT_CLASS_DEVICE
is disabled, by describing the dependency in Kconfig,
as we do for the other drivers in this directory.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Cc: Jingoo Han <jg1.han@samsung.com>
Cc: Bryan Wu <cooloney@gmail.com>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: linux-fbdev@vger.kernel.org
---
 drivers/video/backlight/Kconfig |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index ac6bc28..5675511 100644
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -29,7 +29,7 @@ if LCD_CLASS_DEVICE
 
 config LCD_CORGI
 	tristate "LCD Panel support for SHARP corgi/spitz model"
-	depends on SPI_MASTER && PXA_SHARPSL
+	depends on SPI_MASTER && PXA_SHARPSL && BACKLIGHT_CLASS_DEVICE
 	help
 	  Say y here to support the LCD panels usually found on SHARP
 	  corgi (C7x0) and spitz (Cxx00) models.
-- 
1.7.9.5

Re: [PATCH 10/13] video/pxa: LCD_CORGI needs BACKLIGHT_CLASS_DEVICE

[Bryan Wu]

On Thu, Apr 24, 2014 at 5:28 AM, Peter Griffin <peter.griffin@linaro.org> wrote:
> From: Arnd Bergmann <arnd@arndb.de>
>
> This fixes a randconfig build error when BACKLIGHT_CLASS_DEVICE
> is disabled, by describing the dependency in Kconfig,
> as we do for the other drivers in this directory.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
> Cc: Jingoo Han <jg1.han@samsung.com>
> Cc: Bryan Wu <cooloney@gmail.com>
> Cc: Lee Jones <lee.jones@linaro.org>
> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
> Cc: linux-fbdev@vger.kernel.org
> ---
>  drivers/video/backlight/Kconfig |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
> index ac6bc28..5675511 100644
> --- a/drivers/video/backlight/Kconfig
> +++ b/drivers/video/backlight/Kconfig
> @@ -29,7 +29,7 @@ if LCD_CLASS_DEVICE
>
>  config LCD_CORGI
>         tristate "LCD Panel support for SHARP corgi/spitz model"
> -       depends on SPI_MASTER && PXA_SHARPSL
> +       depends on SPI_MASTER && PXA_SHARPSL && BACKLIGHT_CLASS_DEVICE

Looks good to me,
Acked-by: Bryan Wu <cooloney@gmail.com>

>         help
>           Say y here to support the LCD panels usually found on SHARP
>           corgi (C7x0) and spitz (Cxx00) models.
> --
> 1.7.9.5
>

Re: [PATCH 10/13] video/pxa: LCD_CORGI needs BACKLIGHT_CLASS_DEVICE

[Jingoo Han]

On Thursday, April 24, 2014 9:28 PM, Peter Griffin wrote:
> 
> From: Arnd Bergmann <arnd@arndb.de>
> 
> This fixes a randconfig build error when BACKLIGHT_CLASS_DEVICE
> is disabled, by describing the dependency in Kconfig,
> as we do for the other drivers in this directory.
> 
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
> Cc: Jingoo Han <jg1.han@samsung.com>

Acked-by: Jingoo Han <jg1.han@samsung.com>

Best regards,
Jingoo Han

> Cc: Bryan Wu <cooloney@gmail.com>
> Cc: Lee Jones <lee.jones@linaro.org>
> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
> Cc: linux-fbdev@vger.kernel.org
> ---
>  drivers/video/backlight/Kconfig |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
> index ac6bc28..5675511 100644
> --- a/drivers/video/backlight/Kconfig
> +++ b/drivers/video/backlight/Kconfig
> @@ -29,7 +29,7 @@ if LCD_CLASS_DEVICE
> 
>  config LCD_CORGI
>  	tristate "LCD Panel support for SHARP corgi/spitz model"
> -	depends on SPI_MASTER && PXA_SHARPSL
> +	depends on SPI_MASTER && PXA_SHARPSL && BACKLIGHT_CLASS_DEVICE
>  	help
>  	  Say y here to support the LCD panels usually found on SHARP
>  	  corgi (C7x0) and spitz (Cxx00) models.
> --
> 1.7.9.5

Re: [PATCH 10/13] video/pxa: LCD_CORGI needs BACKLIGHT_CLASS_DEVICE

[Lee Jones]

> From: Arnd Bergmann <arnd@arndb.de>
> 
> This fixes a randconfig build error when BACKLIGHT_CLASS_DEVICE
> is disabled, by describing the dependency in Kconfig,
> as we do for the other drivers in this directory.
> 
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
> Cc: Jingoo Han <jg1.han@samsung.com>
> Cc: Bryan Wu <cooloney@gmail.com>
> Cc: Lee Jones <lee.jones@linaro.org>
> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
> Cc: linux-fbdev@vger.kernel.org
> ---
>  drivers/video/backlight/Kconfig |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Applied, thanks.

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog

[PATCH 11/13] video/nuc900: allow modular build

[Peter Griffin]

From: Arnd Bergmann <arnd@arndb.de>

The frame buffer core may be a loadable module, and in this
case, the nuc900 driver cannot be built-in. Turning it into
a tristate option lets Kconfig work out the dependency and
avoid broken builds.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: linux-fbdev@vger.kernel.org
Cc: Wan ZongShun <mcuos.com@gmail.com>
---
 drivers/video/fbdev/Kconfig |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig
index e593365..95396de 100644
--- a/drivers/video/fbdev/Kconfig
+++ b/drivers/video/fbdev/Kconfig
@@ -2065,7 +2065,7 @@ config FB_S3C2410_DEBUG
 	  through sysfs
 
 config FB_NUC900
-        bool "NUC900 LCD framebuffer support"
+        tristate "NUC900 LCD framebuffer support"
         depends on FB && ARCH_W90X900
         select FB_CFB_FILLRECT
         select FB_CFB_COPYAREA
-- 
1.7.9.5

[PATCH 12/13] video/backlight: LP855X needs PWM

[Peter Griffin]

From: Arnd Bergmann <arnd@arndb.de>

The LP855X driver cannot be successfully built if we don't
enable the PWM subsystem. This patch makes that dependency
explicit in Kconfig and prevents broken randconfig builds.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Cc: Jingoo Han <jg1.han@samsung.com>
Cc: Milo Kim <milo.kim@ti.com>
Cc: Bryan Wu <cooloney@gmail.com>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: linux-fbdev@vger.kernel.org
---
 drivers/video/backlight/Kconfig |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index 5675511..5d44905 100644
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -386,7 +386,7 @@ config BACKLIGHT_LM3639
 
 config BACKLIGHT_LP855X
 	tristate "Backlight driver for TI LP855X"
-	depends on BACKLIGHT_CLASS_DEVICE && I2C
+	depends on BACKLIGHT_CLASS_DEVICE && I2C && PWM
 	help
 	  This supports TI LP8550, LP8551, LP8552, LP8553, LP8555, LP8556 and
 	  LP8557 backlight driver.
-- 
1.7.9.5

Re: [PATCH 12/13] video/backlight: LP855X needs PWM

[Bryan Wu]

On Thu, Apr 24, 2014 at 5:28 AM, Peter Griffin <peter.griffin@linaro.org> wrote:
> From: Arnd Bergmann <arnd@arndb.de>
>
> The LP855X driver cannot be successfully built if we don't
> enable the PWM subsystem. This patch makes that dependency
> explicit in Kconfig and prevents broken randconfig builds.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
> Cc: Jingoo Han <jg1.han@samsung.com>
> Cc: Milo Kim <milo.kim@ti.com>
> Cc: Bryan Wu <cooloney@gmail.com>
> Cc: Lee Jones <lee.jones@linaro.org>
> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
> Cc: linux-fbdev@vger.kernel.org
> ---
>  drivers/video/backlight/Kconfig |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
> index 5675511..5d44905 100644
> --- a/drivers/video/backlight/Kconfig
> +++ b/drivers/video/backlight/Kconfig
> @@ -386,7 +386,7 @@ config BACKLIGHT_LM3639
>
>  config BACKLIGHT_LP855X
>         tristate "Backlight driver for TI LP855X"
> -       depends on BACKLIGHT_CLASS_DEVICE && I2C
> +       depends on BACKLIGHT_CLASS_DEVICE && I2C && PWM

Looks good to me,
Acked-by: Bryan Wu <cooloney@gmail.com>

>         help
>           This supports TI LP8550, LP8551, LP8552, LP8553, LP8555, LP8556 and
>           LP8557 backlight driver.
> --
> 1.7.9.5
>

Re: [PATCH 12/13] video/backlight: LP855X needs PWM

[Milo Kim]

On 04/24/2014 09:28 PM, Peter Griffin wrote:
> From: Arnd Bergmann <arnd@arndb.de>
>
> The LP855X driver cannot be successfully built if we don't
> enable the PWM subsystem. This patch makes that dependency
> explicit in Kconfig and prevents broken randconfig builds.
>

Thanks!

Acked-by: Milo Kim <milo.kim@ti.com>

Re: [PATCH 12/13] video/backlight: LP855X needs PWM

[Jingoo Han]

On Thursday, April 24, 2014 9:28 PM, Peter Griffin wrote:
> 
> From: Arnd Bergmann <arnd@arndb.de>
> 
> The LP855X driver cannot be successfully built if we don't
> enable the PWM subsystem. This patch makes that dependency
> explicit in Kconfig and prevents broken randconfig builds.
> 
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
> Cc: Jingoo Han <jg1.han@samsung.com>

Acked-by: Jingoo Han <jg1.han@samsung.com>

Best regards,
Jingoo Han

> Cc: Milo Kim <milo.kim@ti.com>
> Cc: Bryan Wu <cooloney@gmail.com>
> Cc: Lee Jones <lee.jones@linaro.org>
> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
> Cc: linux-fbdev@vger.kernel.org
> ---
>  drivers/video/backlight/Kconfig |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
> index 5675511..5d44905 100644
> --- a/drivers/video/backlight/Kconfig
> +++ b/drivers/video/backlight/Kconfig
> @@ -386,7 +386,7 @@ config BACKLIGHT_LM3639
> 
>  config BACKLIGHT_LP855X
>  	tristate "Backlight driver for TI LP855X"
> -	depends on BACKLIGHT_CLASS_DEVICE && I2C
> +	depends on BACKLIGHT_CLASS_DEVICE && I2C && PWM
>  	help
>  	  This supports TI LP8550, LP8551, LP8552, LP8553, LP8555, LP8556 and
>  	  LP8557 backlight driver.
> --
> 1.7.9.5

Re: [PATCH 12/13] video/backlight: LP855X needs PWM

[Lee Jones]

> From: Arnd Bergmann <arnd@arndb.de>
> 
> The LP855X driver cannot be successfully built if we don't
> enable the PWM subsystem. This patch makes that dependency
> explicit in Kconfig and prevents broken randconfig builds.
> 
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
> Cc: Jingoo Han <jg1.han@samsung.com>
> Cc: Milo Kim <milo.kim@ti.com>
> Cc: Bryan Wu <cooloney@gmail.com>
> Cc: Lee Jones <lee.jones@linaro.org>
> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
> Cc: linux-fbdev@vger.kernel.org
> ---
>  drivers/video/backlight/Kconfig |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Applied, thanks.

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog

[PATCH 13/13] video: omap: allow building on !MMU

[Peter Griffin]

From: Arnd Bergmann <arnd@arndb.de>

The omap lcdc driver has an elaborate mmap_kern function
to map the frame buffer into kernel address space as
write-combined. This uses functions that are only available
on MMU-enabled builds.

It does seem equivalent to ioremap_wc though, so we should
be able to just use that instead.

This patch is build-tested only, it needs to be run on real
hardware before applying.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: linux-fbdev@vger.kernel.org
Cc: linux-omap@vger.kernel.org
---
 drivers/video/fbdev/omap/lcdc.c |   28 +++++-----------------------
 1 file changed, 5 insertions(+), 23 deletions(-)

diff --git a/drivers/video/fbdev/omap/lcdc.c b/drivers/video/fbdev/omap/lcdc.c
index b52f625..40e8200 100644
--- a/drivers/video/fbdev/omap/lcdc.c
+++ b/drivers/video/fbdev/omap/lcdc.c
@@ -613,29 +613,11 @@ static void lcdc_dma_handler(u16 status, void *data)
 
 static int mmap_kern(void)
 {
-	struct vm_struct	*kvma;
-	struct vm_area_struct	vma;
-	pgprot_t		pgprot;
-	unsigned long		vaddr;
-
-	kvma = get_vm_area(lcdc.vram_size, VM_IOREMAP);
-	if (kvma = NULL) {
-		dev_err(lcdc.fbdev->dev, "can't get kernel vm area\n");
+	void __iomem *vaddr;
+
+	vaddr = ioremap_wc(lcdc.vram_phys, lcdc.vram_size);
+	if (!vaddr)
 		return -ENOMEM;
-	}
-	vma.vm_mm = &init_mm;
-
-	vaddr = (unsigned long)kvma->addr;
-	vma.vm_start = vaddr;
-	vma.vm_end = vaddr + lcdc.vram_size;
-
-	pgprot = pgprot_writecombine(pgprot_kernel);
-	if (io_remap_pfn_range(&vma, vaddr,
-			   lcdc.vram_phys >> PAGE_SHIFT,
-			   lcdc.vram_size, pgprot) < 0) {
-		dev_err(lcdc.fbdev->dev, "kernel mmap for FB memory failed\n");
-		return -EAGAIN;
-	}
 
 	lcdc.vram_virt = (void *)vaddr;
 
@@ -644,7 +626,7 @@ static int mmap_kern(void)
 
 static void unmap_kern(void)
 {
-	vunmap(lcdc.vram_virt);
+	iounmap(lcdc.vram_virt);
 }
 
 static int alloc_palette_ram(void)
-- 
1.7.9.5

Re: [PATCH 13/13] video: omap: allow building on !MMU

[Tomi Valkeinen]

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On 24/04/14 15:28, Peter Griffin wrote:
> From: Arnd Bergmann <arnd@arndb.de>
> 
> The omap lcdc driver has an elaborate mmap_kern function
> to map the frame buffer into kernel address space as
> write-combined. This uses functions that are only available
> on MMU-enabled builds.
> 
> It does seem equivalent to ioremap_wc though, so we should
> be able to just use that instead.
> 
> This patch is build-tested only, it needs to be run on real
> hardware before applying.

I don't have omap1 boards, and I don't know anyone that has. I don't
even know if the omap1 fb is working or not...

Tony, any idea of omap1's fb? Are you able to test this?

 Tomi



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Re: [PATCH 13/13] video: omap: allow building on !MMU

[Tony Lindgren]

* Tomi Valkeinen <tomi.valkeinen@ti.com> [140507 02:15]:
> On 24/04/14 15:28, Peter Griffin wrote:
> > From: Arnd Bergmann <arnd@arndb.de>
> > 
> > The omap lcdc driver has an elaborate mmap_kern function
> > to map the frame buffer into kernel address space as
> > write-combined. This uses functions that are only available
> > on MMU-enabled builds.
> > 
> > It does seem equivalent to ioremap_wc though, so we should
> > be able to just use that instead.
> > 
> > This patch is build-tested only, it needs to be run on real
> > hardware before applying.
> 
> I don't have omap1 boards, and I don't know anyone that has. I don't
> even know if the omap1 fb is working or not...
> 
> Tony, any idea of omap1's fb? Are you able to test this?

I have three omap1 boards in my rack that I use for my boot
testing. Tried to enable framebuffer but so far no luck on
any of them. So I'm not much of a help here. Looks like the
patch should work though..

Aaro & Janusz, care to take a look at the patch in this
thread?

Regards,

Tony

Re: [PATCH 13/13] video: omap: allow building on !MMU

[Aaro Koskinen]

Hi,

On Thu, May 08, 2014 at 02:53:38PM -0700, Tony Lindgren wrote:
> * Tomi Valkeinen <tomi.valkeinen@ti.com> [140507 02:15]:
> > I don't have omap1 boards, and I don't know anyone that has. I don't
> > even know if the omap1 fb is working or not...

OMAP1 fb is working very well. As a matter of fact, it's much more usable
for me than fb on OMAP2/3 - apart from N900 (on which fb is working again
with 3.15) none of my 4 other OMAP2/3 boards have a working display/fb
in mainline yet. :-(

> > Tony, any idea of omap1's fb? Are you able to test this?
> 
> I have three omap1 boards in my rack that I use for my boot
> testing. Tried to enable framebuffer but so far no luck on
> any of them. So I'm not much of a help here. Looks like the
> patch should work though..
> 
> Aaro & Janusz, care to take a look at the patch in this
> thread?

I couldn't figure out how to enter this code path. Amstrad E3 & Nokia
770 will take the alloc_fbmem() path & exit, and based on quick look
I could not see way to enter mmap_kern(). Is that dead code?

A.

Re: [PATCH 13/13] video: omap: allow building on !MMU

[Tony Lindgren]

* Aaro Koskinen <aaro.koskinen@iki.fi> [140508 16:09]:
> Hi,
> 
> On Thu, May 08, 2014 at 02:53:38PM -0700, Tony Lindgren wrote:
> > * Tomi Valkeinen <tomi.valkeinen@ti.com> [140507 02:15]:
> > > I don't have omap1 boards, and I don't know anyone that has. I don't
> > > even know if the omap1 fb is working or not...
> 
> OMAP1 fb is working very well. As a matter of fact, it's much more usable
> for me than fb on OMAP2/3 - apart from N900 (on which fb is working again
> with 3.15) none of my 4 other OMAP2/3 boards have a working display/fb
> in mainline yet. :-(

I hear you.. What do you have in the .config for omap1?
Would be nice to enable the framebuffer in omap1_defconfig?
 
> > > Tony, any idea of omap1's fb? Are you able to test this?
> > 
> > I have three omap1 boards in my rack that I use for my boot
> > testing. Tried to enable framebuffer but so far no luck on
> > any of them. So I'm not much of a help here. Looks like the
> > patch should work though..
> > 
> > Aaro & Janusz, care to take a look at the patch in this
> > thread?
> 
> I couldn't figure out how to enter this code path. Amstrad E3 & Nokia
> 770 will take the alloc_fbmem() path & exit, and based on quick look
> I could not see way to enter mmap_kern(). Is that dead code?

Could be. It may be something left from when we had code to keep
the bootloader logo displayed while booting kernel.

Regards,

Tony

Re: [PATCH 13/13] video: omap: allow building on !MMU

[Aaro Koskinen]

Hi,

On Thu, May 08, 2014 at 04:17:11PM -0700, Tony Lindgren wrote:
> > OMAP1 fb is working very well. As a matter of fact, it's much more usable
> > for me than fb on OMAP2/3 - apart from N900 (on which fb is working again
> > with 3.15) none of my 4 other OMAP2/3 boards have a working display/fb
> > in mainline yet. :-(
> 
> I hear you.. What do you have in the .config for omap1?
> Would be nice to enable the framebuffer in omap1_defconfig?

Looks like the needed stuff is enabled there. Unfortunately I cannot
test the full omap1_defconfig because of size limitations.

> > > > Tony, any idea of omap1's fb? Are you able to test this?
> > > 
> > > I have three omap1 boards in my rack that I use for my boot
> > > testing. Tried to enable framebuffer but so far no luck on
> > > any of them. So I'm not much of a help here. Looks like the
> > > patch should work though..
> > > 
> > > Aaro & Janusz, care to take a look at the patch in this
> > > thread?
> > 
> > I couldn't figure out how to enter this code path. Amstrad E3 & Nokia
> > 770 will take the alloc_fbmem() path & exit, and based on quick look
> > I could not see way to enter mmap_kern(). Is that dead code?
> 
> Could be. It may be something left from when we had code to keep
> the bootloader logo displayed while booting kernel.

The support for early fbmem alloc was removed in 2011
(1e434f9318efc3dddc0c0b8d2071712668154c2b, OMAPFB: remove early mem
alloc from old omapfb), so I think we can safely delete this code.
I can prepare & test a patch for this.

A.

Re: [PATCH 13/13] video: omap: allow building on !MMU

[Tony Lindgren]

* Aaro Koskinen <aaro.koskinen@iki.fi> [140509 14:26]:
> Hi,
> 
> On Thu, May 08, 2014 at 04:17:11PM -0700, Tony Lindgren wrote:
> > > OMAP1 fb is working very well. As a matter of fact, it's much more usable
> > > for me than fb on OMAP2/3 - apart from N900 (on which fb is working again
> > > with 3.15) none of my 4 other OMAP2/3 boards have a working display/fb
> > > in mainline yet. :-(
> > 
> > I hear you.. What do you have in the .config for omap1?
> > Would be nice to enable the framebuffer in omap1_defconfig?
> 
> Looks like the needed stuff is enabled there. Unfortunately I cannot
> test the full omap1_defconfig because of size limitations.

OK maybe it's just a question of loading the backlight modules.
 
> > > > > Tony, any idea of omap1's fb? Are you able to test this?
> > > > 
> > > > I have three omap1 boards in my rack that I use for my boot
> > > > testing. Tried to enable framebuffer but so far no luck on
> > > > any of them. So I'm not much of a help here. Looks like the
> > > > patch should work though..
> > > > 
> > > > Aaro & Janusz, care to take a look at the patch in this
> > > > thread?
> > > 
> > > I couldn't figure out how to enter this code path. Amstrad E3 & Nokia
> > > 770 will take the alloc_fbmem() path & exit, and based on quick look
> > > I could not see way to enter mmap_kern(). Is that dead code?
> > 
> > Could be. It may be something left from when we had code to keep
> > the bootloader logo displayed while booting kernel.
> 
> The support for early fbmem alloc was removed in 2011
> (1e434f9318efc3dddc0c0b8d2071712668154c2b, OMAPFB: remove early mem
> alloc from old omapfb), so I think we can safely delete this code.
> I can prepare & test a patch for this.

OK thanks that makes sense to me.

Regards,

Tony