* [PATCH] video: ARM CLCD: fix Vexpress regression
2016-10-20 6:46 [PATCH] video: ARM CLCD: fix Vexpress regression Linus Walleij
@ 2016-10-22 3:44 ` Amit Pundir
2016-10-28 16:19 ` Nicolae Rosia
` (3 subsequent siblings)
4 siblings, 0 replies; 7+ messages in thread
From: Amit Pundir @ 2016-10-22 3:44 UTC (permalink / raw)
To: linux-arm-kernel
On 20 October 2016 at 14:46, Linus Walleij <linus.walleij@linaro.org> wrote:
> The CLCD does not come up on Versatile Express as it does not
> (currently) have a syscon node for controlling the block apart
> from the CLCD itself. Make sure the .init() function can bail
> out without an error making it probe again.
>
> Reported-by: Amit Pundir <amit.pundir@linaro.org>
> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
> ---
> drivers/video/fbdev/amba-clcd-versatile.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/video/fbdev/amba-clcd-versatile.c b/drivers/video/fbdev/amba-clcd-versatile.c
> index 19ad8645d93c..d909b7dda14d 100644
> --- a/drivers/video/fbdev/amba-clcd-versatile.c
> +++ b/drivers/video/fbdev/amba-clcd-versatile.c
> @@ -527,7 +527,8 @@ int versatile_clcd_init_panel(struct clcd_fb *fb,
> &clcd_id);
> if (!np) {
> dev_err(dev, "no Versatile syscon node\n");
> - return -ENODEV;
> + /* Vexpress does not have this */
> + return 0;
> }
> versatile_clcd_type = (enum versatile_clcd)clcd_id->data;
Thanks. Works on my Qemu + Android setup.
Tested-by: Amit Pundir <amit.pundir@linaro.org>
>
> --
> 2.7.4
>
^ permalink raw reply [flat|nested] 7+ messages in thread* [PATCH] video: ARM CLCD: fix Vexpress regression
2016-10-20 6:46 [PATCH] video: ARM CLCD: fix Vexpress regression Linus Walleij
2016-10-22 3:44 ` Amit Pundir
@ 2016-10-28 16:19 ` Nicolae Rosia
2016-10-29 8:23 ` Linus Walleij
` (2 subsequent siblings)
4 siblings, 0 replies; 7+ messages in thread
From: Nicolae Rosia @ 2016-10-28 16:19 UTC (permalink / raw)
To: linux-arm-kernel
Thanks, works for me on qemu.
Tested-by: Nicolae Rosia <nicolae_rosia@mentor.com>
^ permalink raw reply [flat|nested] 7+ messages in thread* [PATCH] video: ARM CLCD: fix Vexpress regression
2016-10-20 6:46 [PATCH] video: ARM CLCD: fix Vexpress regression Linus Walleij
2016-10-22 3:44 ` Amit Pundir
2016-10-28 16:19 ` Nicolae Rosia
@ 2016-10-29 8:23 ` Linus Walleij
2016-11-02 8:24 ` Tomi Valkeinen
2016-11-02 8:34 ` Tomi Valkeinen
4 siblings, 0 replies; 7+ messages in thread
From: Linus Walleij @ 2016-10-29 8:23 UTC (permalink / raw)
To: linux-arm-kernel
On Thu, Oct 20, 2016 at 8:46 AM, Linus Walleij <linus.walleij@linaro.org> wrote:
> The CLCD does not come up on Versatile Express as it does not
> (currently) have a syscon node for controlling the block apart
> from the CLCD itself. Make sure the .init() function can bail
> out without an error making it probe again.
>
> Reported-by: Amit Pundir <amit.pundir@linaro.org>
> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Tomi can you please pick this up?
Yours,
Linus Walleij
^ permalink raw reply [flat|nested] 7+ messages in thread
* [PATCH] video: ARM CLCD: fix Vexpress regression
2016-10-20 6:46 [PATCH] video: ARM CLCD: fix Vexpress regression Linus Walleij
` (2 preceding siblings ...)
2016-10-29 8:23 ` Linus Walleij
@ 2016-11-02 8:24 ` Tomi Valkeinen
2016-11-02 8:34 ` Tomi Valkeinen
4 siblings, 0 replies; 7+ messages in thread
From: Tomi Valkeinen @ 2016-11-02 8:24 UTC (permalink / raw)
To: linux-arm-kernel
On 20/10/16 09:46, Linus Walleij wrote:
> The CLCD does not come up on Versatile Express as it does not
> (currently) have a syscon node for controlling the block apart
> from the CLCD itself. Make sure the .init() function can bail
> out without an error making it probe again.
>
> Reported-by: Amit Pundir <amit.pundir@linaro.org>
> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
> ---
> drivers/video/fbdev/amba-clcd-versatile.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/video/fbdev/amba-clcd-versatile.c b/drivers/video/fbdev/amba-clcd-versatile.c
> index 19ad8645d93c..d909b7dda14d 100644
> --- a/drivers/video/fbdev/amba-clcd-versatile.c
> +++ b/drivers/video/fbdev/amba-clcd-versatile.c
> @@ -527,7 +527,8 @@ int versatile_clcd_init_panel(struct clcd_fb *fb,
> &clcd_id);
> if (!np) {
> dev_err(dev, "no Versatile syscon node\n");
> - return -ENODEV;
> + /* Vexpress does not have this */
> + return 0;
> }
> versatile_clcd_type = (enum versatile_clcd)clcd_id->data;
>
>
Thanks, queued for 4.9 fixes.
Tomi
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^ permalink raw reply [flat|nested] 7+ messages in thread* [PATCH] video: ARM CLCD: fix Vexpress regression
2016-10-20 6:46 [PATCH] video: ARM CLCD: fix Vexpress regression Linus Walleij
` (3 preceding siblings ...)
2016-11-02 8:24 ` Tomi Valkeinen
@ 2016-11-02 8:34 ` Tomi Valkeinen
2016-11-03 9:25 ` Linus Walleij
4 siblings, 1 reply; 7+ messages in thread
From: Tomi Valkeinen @ 2016-11-02 8:34 UTC (permalink / raw)
To: linux-arm-kernel
On 20/10/16 09:46, Linus Walleij wrote:
> The CLCD does not come up on Versatile Express as it does not
> (currently) have a syscon node for controlling the block apart
> from the CLCD itself. Make sure the .init() function can bail
> out without an error making it probe again.
>
> Reported-by: Amit Pundir <amit.pundir@linaro.org>
> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
> ---
> drivers/video/fbdev/amba-clcd-versatile.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/video/fbdev/amba-clcd-versatile.c b/drivers/video/fbdev/amba-clcd-versatile.c
> index 19ad8645d93c..d909b7dda14d 100644
> --- a/drivers/video/fbdev/amba-clcd-versatile.c
> +++ b/drivers/video/fbdev/amba-clcd-versatile.c
> @@ -527,7 +527,8 @@ int versatile_clcd_init_panel(struct clcd_fb *fb,
> &clcd_id);
> if (!np) {
> dev_err(dev, "no Versatile syscon node\n");
> - return -ENODEV;
> + /* Vexpress does not have this */
> + return 0;
> }
> versatile_clcd_type = (enum versatile_clcd)clcd_id->data;
Actually, the above doesn't look correct. If this is not an error, then
the driver shouldn't print an error.
Shall I just remove the print?
Tomi
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^ permalink raw reply [flat|nested] 7+ messages in thread* [PATCH] video: ARM CLCD: fix Vexpress regression
2016-11-02 8:34 ` Tomi Valkeinen
@ 2016-11-03 9:25 ` Linus Walleij
0 siblings, 0 replies; 7+ messages in thread
From: Linus Walleij @ 2016-11-03 9:25 UTC (permalink / raw)
To: linux-arm-kernel
On Wed, Nov 2, 2016 at 9:34 AM, Tomi Valkeinen <tomi.valkeinen@ti.com> wrote:
> On 20/10/16 09:46, Linus Walleij wrote:
>> The CLCD does not come up on Versatile Express as it does not
>> (currently) have a syscon node for controlling the block apart
>> from the CLCD itself. Make sure the .init() function can bail
>> out without an error making it probe again.
>>
>> Reported-by: Amit Pundir <amit.pundir@linaro.org>
>> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
>> ---
>> drivers/video/fbdev/amba-clcd-versatile.c | 3 ++-
>> 1 file changed, 2 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/video/fbdev/amba-clcd-versatile.c b/drivers/video/fbdev/amba-clcd-versatile.c
>> index 19ad8645d93c..d909b7dda14d 100644
>> --- a/drivers/video/fbdev/amba-clcd-versatile.c
>> +++ b/drivers/video/fbdev/amba-clcd-versatile.c
>> @@ -527,7 +527,8 @@ int versatile_clcd_init_panel(struct clcd_fb *fb,
>> &clcd_id);
>> if (!np) {
>> dev_err(dev, "no Versatile syscon node\n");
>> - return -ENODEV;
>> + /* Vexpress does not have this */
>> + return 0;
>> }
>> versatile_clcd_type = (enum versatile_clcd)clcd_id->data;
>
> Actually, the above doesn't look correct. If this is not an error, then
> the driver shouldn't print an error.
>
> Shall I just remove the print?
You're right, sorry for not thinking deeper :(
Just cut the print.
Thanks!
Yours,
Linus Walleij
^ permalink raw reply [flat|nested] 7+ messages in thread