diff options
| author | Benjamin Gaignard <benjamin.gaignard@linaro.org> | 2014-10-09 08:53:35 +0200 |
|---|---|---|
| committer | Benjamin Gaignard <benjamin.gaignard@linaro.org> | 2014-12-11 13:58:12 +0100 |
| commit | 765692078f08d0229e545d3c1a50bddbc16c800c (patch) | |
| tree | 1950e70afe72f8fa624778c0d8c746426f126c05 /drivers/gpu/drm/sti/sti_hdmi.c | |
| parent | 41a14623bd7345017b62f167110cf95808a4891a (diff) | |
drm: sti: remove gpio for HDMI hot plug detection
gpio used for HDMI hot plug detection is useless,
HDMI_STI register contains an hot plug detection status bit.
Fix binding documentation.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Diffstat (limited to 'drivers/gpu/drm/sti/sti_hdmi.c')
| -rw-r--r-- | drivers/gpu/drm/sti/sti_hdmi.c | 11 |
1 files changed, 2 insertions, 9 deletions
diff --git a/drivers/gpu/drm/sti/sti_hdmi.c b/drivers/gpu/drm/sti/sti_hdmi.c index fed1b5fe4842..192119761c14 100644 --- a/drivers/gpu/drm/sti/sti_hdmi.c +++ b/drivers/gpu/drm/sti/sti_hdmi.c @@ -130,8 +130,7 @@ static irqreturn_t hdmi_irq_thread(int irq, void *arg) /* Hot plug/unplug IRQ */ if (hdmi->irq_status & HDMI_INT_HOT_PLUG) { - /* read gpio to get the status */ - hdmi->hpd = gpio_get_value(hdmi->hpd_gpio); + hdmi->hpd = readl(hdmi->regs + HDMI_STA) & HDMI_STA_HOT_PLUG; if (hdmi->drm_dev) drm_helper_hpd_irq_event(hdmi->drm_dev); } @@ -766,13 +765,7 @@ static int sti_hdmi_probe(struct platform_device *pdev) return PTR_ERR(hdmi->clk_audio); } - hdmi->hpd_gpio = of_get_named_gpio(np, "hdmi,hpd-gpio", 0); - if (hdmi->hpd_gpio < 0) { - DRM_ERROR("Failed to get hdmi hpd-gpio\n"); - return -EIO; - } - - hdmi->hpd = gpio_get_value(hdmi->hpd_gpio); + hdmi->hpd = readl(hdmi->regs + HDMI_STA) & HDMI_STA_HOT_PLUG; init_waitqueue_head(&hdmi->wait_event); |