[PATCH] staging: imx-drm: imx-hdmi: clean up hdmi_phy_wait_i2c_done

[kernel@esmil.dk (Emil Renner Berthing)]

On 29 March 2014 19:37, Troy Kisky <troy.kisky@boundarydevices.com> wrote:
> On 3/29/2014 5:58 AM, Emil Renner Berthing wrote:
>> Simplify hdmi_phy_wait_i2c_done so the call to hdmi_readb is
>> only done in one place. This also fixes a checkpatch warning.
>>
>> Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>
>> ---
>>  drivers/staging/imx-drm/imx-hdmi.c | 5 +----
>>  1 file changed, 1 insertion(+), 4 deletions(-)
>>
>> diff --git a/drivers/staging/imx-drm/imx-hdmi.c b/drivers/staging/imx-drm/imx-hdmi.c
>> index da71d8d..cc8d232 100644
>> --- a/drivers/staging/imx-drm/imx-hdmi.c
>> +++ b/drivers/staging/imx-drm/imx-hdmi.c
>> @@ -660,13 +660,10 @@ static inline void hdmi_phy_test_dout(struct imx_hdmi *hdmi,
>>
>>  static bool hdmi_phy_wait_i2c_done(struct imx_hdmi *hdmi, int msec)
>>  {
>> -     unsigned char val = 0;
>> -     val = hdmi_readb(hdmi, HDMI_IH_I2CMPHY_STAT0) & 0x3;
>> -     while (!val) {
>> +     while ((hdmi_readb(hdmi, HDMI_IH_I2CMPHY_STAT0) & 0x3) == 0) {
>>               udelay(1000);
>>               if (msec-- == 0)
>>                       return false;
>> -             val = hdmi_readb(hdmi, HDMI_IH_I2CMPHY_STAT0) & 0x3;
>>       }
>>       return true;
>>  }
>>
>
> I'd prefer to have the msec check before the delay, not your
> fault, but while your in the area anyway. That way a wait
> of 0 ms doesn't wait at all and just checks if it is done.

Makes perfect sense. I'll resend the patch although this was mostly to
make the Eudyptula scripts happy ;)

/Emil