The documentation for drm_do_get_edid in drivers/gpu/drm/drm_edid.c states:
"As in the general case the DDC bus is accessible by the kernel at the I2C
level, drivers must make all reasonable efforts to expose it as an I2C
adapter and use drm_get_edid() instead of abusing this function."
Exposing t
On Thu, Jun 15, 2017 at 01:29:33AM +1000, Jonathan Liu wrote:
> The documentation for drm_do_get_edid in drivers/gpu/drm/drm_edid.c states:
> "As in the general case the DDC bus is accessible by the kernel at the I2C
> level, drivers must make all reasonable efforts to expose it as an I2C
> adapter
On Wed, Jun 21, 2017 at 07:42:47PM +1000, Jonathan Liu wrote:
> >> +static int wait_fifo_flag_unset(struct sun4i_hdmi *hdmi, u32 flag)
> >> +{
> >> + /* 1 byte takes 9 clock cycles (8 bits + 1 ack) */
> >> + unsigned long byte_time = DIV_ROUND_UP(USEC_PER_SEC,
> >> +
Hi Maxime,
On 21 June 2017 at 18:51, Maxime Ripard
wrote:
> On Thu, Jun 15, 2017 at 01:29:33AM +1000, Jonathan Liu wrote:
>> The documentation for drm_do_get_edid in drivers/gpu/drm/drm_edid.c states:
>> "As in the general case the DDC bus is accessible by the kernel at the I2C
>> level, drivers
Hi Maxime,
On 22 June 2017 at 07:26, Maxime Ripard
wrote:
> On Wed, Jun 21, 2017 at 07:42:47PM +1000, Jonathan Liu wrote:
>> >> +static int wait_fifo_flag_unset(struct sun4i_hdmi *hdmi, u32 flag)
>> >> +{
>> >> + /* 1 byte takes 9 clock cycles (8 bits + 1 ack) */
>> >> + unsigned long byt
