On Wed, 27 Jan 2021 14:11:31 +0100
Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
> On Wed, Jan 27, 2021 at 08:57:37PM +0800, Carlis wrote:
> > From: zhangxuezhi <zhangxuezhi1@xxxxxxxxxx>
> >
> > For st7789v ic,add tearing signal detect to avoid screen tearing
>
> I need a much better changelog description here please.
>
> >
> > Signed-off-by: zhangxuezhi <zhangxuezhi1@xxxxxxxxxx>
> > ---
> > v9: change pr_* to dev_*
> > ---
>
> What changed in all of your previous versions? All of them should be
> listed here, right?
>
>
>
> > drivers/staging/fbtft/fb_st7789v.c | 132
> > ++++++++++++++++++++++++++++++++++++- drivers/staging/fbtft/fbtft.h
> > | 1 + 2 files changed, 132 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/staging/fbtft/fb_st7789v.c
> > b/drivers/staging/fbtft/fb_st7789v.c index 3a280cc..9aa2f36 100644
> > --- a/drivers/staging/fbtft/fb_st7789v.c
> > +++ b/drivers/staging/fbtft/fb_st7789v.c
> > @@ -9,9 +9,12 @@
> > #include <linux/delay.h>
> > #include <linux/init.h>
> > #include <linux/kernel.h>
> > +#include <linux/mutex.h>
> > +#include <linux/interrupt.h>
> > +#include <linux/completion.h>
> > #include <linux/module.h>
> > #include <video/mipi_display.h>
> > -
> > +#include <linux/gpio/consumer.h>
> > #include "fbtft.h"
> >
> > #define DRVNAME "fb_st7789v"
> > @@ -66,6 +69,32 @@ enum st7789v_command {
> > #define MADCTL_MX BIT(6) /* bitmask for column address order */
> > #define MADCTL_MY BIT(7) /* bitmask for page address order */
> >
> > +#define SPI_PANEL_TE_TIMEOUT 400
>
> What is the units here? Where did this value come from?
hi,the units is msecs,and i got this value from a qcom mdp spi
drivers,and i will add the notes you need in the patch v10
>
> > +static struct mutex te_mutex;/*mutex for tearing line*/
>
> Does that look correct???
>
> thanks,
>
> greg k-h
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