diff options
| author |   Emil Renner Berthing <kernel@esmil.dk> | 2014-03-30 00:21:21 +0100 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-04-25 16:11:03 -0700 |
| commit | 0e6bcf3a1539eff7a7c16af18de65f186b177ea4 (patch) | |
| tree | c501b1ea49783f258c8cdb91ec9c9b1b10ef4910 /drivers/staging/imx-drm | |
| parent | staging: imx-drm: add LVDS666 support for parallel display (diff) | |
| download | linux-dev-0e6bcf3a1539eff7a7c16af18de65f186b177ea4.tar.xz linux-dev-0e6bcf3a1539eff7a7c16af18de65f186b177ea4.zip | |
staging: imx-drm: imx-hdmi: clean up hdmi_phy_wait_i2c_done
Simplify hdmi_phy_wait_i2c_done so the call to hdmi_readb is
only done in one place. Also check for timout before waiting
as suggested by Troy Kisky.
This also fixes a checkpatch warning.
Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/imx-drm')
| -rw-r--r-- | drivers/staging/imx-drm/imx-hdmi.c | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/drivers/staging/imx-drm/imx-hdmi.c b/drivers/staging/imx-drm/imx-hdmi.c index d47dedd2cdb4..13071330acad 100644 --- a/drivers/staging/imx-drm/imx-hdmi.c +++ b/drivers/staging/imx-drm/imx-hdmi.c @@ -659,13 +659,10 @@ 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) { - udelay(1000); + while ((hdmi_readb(hdmi, HDMI_IH_I2CMPHY_STAT0) & 0x3) == 0) { if (msec-- == 0) return false; - val = hdmi_readb(hdmi, HDMI_IH_I2CMPHY_STAT0) & 0x3; + udelay(1000); } return true; } |