| Message ID | 1442436098-26608-1-git-send-email-dianders@chromium.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Wed, Sep 16, 2015 at 01:41:38PM -0700, Douglas Anderson wrote: > There's a member in 'struct dw_hdmi' called cable_plugin. It's never > set to anything anywhere so thus is always false. There's a bit of code > checking it, but since it's always false this must be dead code. > Eliminate it. > > Note: if someone wants to figure out the intention of the original code > and implement whatever feature / fix was needed then we can drop this > patch. The 'cable_plugin' member has been unused since the code was > first added in (9aaf880 imx-drm: Add mx6 hdmi transmitter support). > > Signed-off-by: Douglas Anderson <dianders@chromium.org> > --- > drivers/gpu/drm/bridge/dw_hdmi.c | 9 --------- > 1 file changed, 9 deletions(-) Except for the CHROMIUM: prefix this looks good to me: Reviewed-by: Thierry Reding <treding@nvidia.com> Russell, do you have patches to this driver queued for v4.4 and plan to pick this up into your tree or should I take it? Thierry > > diff --git a/drivers/gpu/drm/bridge/dw_hdmi.c b/drivers/gpu/drm/bridge/dw_hdmi.c > index 0083d4e..ba90885 100644 > --- a/drivers/gpu/drm/bridge/dw_hdmi.c > +++ b/drivers/gpu/drm/bridge/dw_hdmi.c > @@ -115,7 +115,6 @@ struct dw_hdmi { > int vic; > > u8 edid[HDMI_EDID_LEN]; > - bool cable_plugin; > > bool phy_enabled; > struct drm_display_mode previous_mode; > @@ -1203,12 +1202,6 @@ static void dw_hdmi_clear_overflow(struct dw_hdmi *hdmi) > hdmi_writeb(hdmi, val, HDMI_FC_INVIDCONF); > } > > -static void hdmi_enable_overflow_interrupts(struct dw_hdmi *hdmi) > -{ > - hdmi_writeb(hdmi, 0, HDMI_FC_MASK2); > - hdmi_writeb(hdmi, 0, HDMI_IH_MUTE_FC_STAT2); > -} > - > static void hdmi_disable_overflow_interrupts(struct dw_hdmi *hdmi) > { > hdmi_writeb(hdmi, HDMI_IH_MUTE_FC_STAT2_OVERFLOW_MASK, > @@ -1285,8 +1278,6 @@ static int dw_hdmi_setup(struct dw_hdmi *hdmi, struct drm_display_mode *mode) > hdmi_tx_hdcp_config(hdmi); > > dw_hdmi_clear_overflow(hdmi); > - if (hdmi->cable_plugin && hdmi->sink_is_hdmi) > - hdmi_enable_overflow_interrupts(hdmi); > > return 0; > } > -- > 2.6.0.rc0.131.gf624c3d >
On Mon, Sep 21, 2015 at 11:51:06AM +0200, Thierry Reding wrote: > On Wed, Sep 16, 2015 at 01:41:38PM -0700, Douglas Anderson wrote: > > There's a member in 'struct dw_hdmi' called cable_plugin. It's never > > set to anything anywhere so thus is always false. There's a bit of code > > checking it, but since it's always false this must be dead code. > > Eliminate it. > > > > Note: if someone wants to figure out the intention of the original code > > and implement whatever feature / fix was needed then we can drop this > > patch. The 'cable_plugin' member has been unused since the code was > > first added in (9aaf880 imx-drm: Add mx6 hdmi transmitter support). > > > > Signed-off-by: Douglas Anderson <dianders@chromium.org> > > --- > > drivers/gpu/drm/bridge/dw_hdmi.c | 9 --------- > > 1 file changed, 9 deletions(-) > > Except for the CHROMIUM: prefix this looks good to me: > > Reviewed-by: Thierry Reding <treding@nvidia.com> > > Russell, do you have patches to this driver queued for v4.4 and plan to > pick this up into your tree or should I take it? My current patch stack for imx-drm related stuff looks like this at present: drm: bridge/dw_hdmi: place PHY into low power mode when disabled drm: bridge/dw_hdmi: start of support for pixel doubled modes drm: bridge/dw_hdmi: remove CEC engine register definitions drm: bridge/dw_hdmi-cec: add Designware HDMI CEC driver cec: add HDMI CEC input driver cec: add HDMI CEC core driver drm: bridge/dw_hdmi: replace CTS calculation for the ACR drm: bridge/dw_hdmi: remove ratio support from ACR code drm: bridge/dw_hdmi: adjust pixel clock values in N calculation drm: bridge/dw_hdmi: avoid being recursive in N calculation drm: bridge/dw_hdmi-ahb-audio: allow larger buffer sizes drm: bridge/dw_hdmi-ahb-audio: basic support for multi-channel PCM audio drm: bridge/dw_hdmi-ahb-audio: parse ELD from HDMI driver drm: bridge/dw_hdmi-ahb-audio: add audio driver drm: bridge/dw_hdmi: improve HDMI enable/disable handling drm: bridge/dw_hdmi: add connector mode forcing drm: bridge/dw_hdmi: add support for interlaced video modes gpu: imx: fix support for interlaced modes gpu: imx: simplify sync polarity setting I haven't yet decided what, if anything, from that stack I'm going to try to get into the next merge window. Given the lack of interest last time I posted these patches, I'm loosing interest myself in trying to get them merged, especially ones which are getting on for being 2 years old.
Am Montag, den 21.09.2015, 15:15 +0100 schrieb Russell King - ARM Linux: > On Mon, Sep 21, 2015 at 11:51:06AM +0200, Thierry Reding wrote: > > On Wed, Sep 16, 2015 at 01:41:38PM -0700, Douglas Anderson wrote: > > > There's a member in 'struct dw_hdmi' called cable_plugin. It's never > > > set to anything anywhere so thus is always false. There's a bit of code > > > checking it, but since it's always false this must be dead code. > > > Eliminate it. > > > > > > Note: if someone wants to figure out the intention of the original code > > > and implement whatever feature / fix was needed then we can drop this > > > patch. The 'cable_plugin' member has been unused since the code was > > > first added in (9aaf880 imx-drm: Add mx6 hdmi transmitter support). > > > > > > Signed-off-by: Douglas Anderson <dianders@chromium.org> > > > --- > > > drivers/gpu/drm/bridge/dw_hdmi.c | 9 --------- > > > 1 file changed, 9 deletions(-) > > > > Except for the CHROMIUM: prefix this looks good to me: > > > > Reviewed-by: Thierry Reding <treding@nvidia.com> This seems to be similar to Sascha's "drm: bridge/dw_hdmi: remove unused code" patch, except that the hdmi_disable_overflow_interrupts function could be removed too. > > Russell, do you have patches to this driver queued for v4.4 and plan to > > pick this up into your tree or should I take it? > > My current patch stack for imx-drm related stuff looks like this at > present: > > drm: bridge/dw_hdmi: place PHY into low power mode when disabled > drm: bridge/dw_hdmi: start of support for pixel doubled modes > drm: bridge/dw_hdmi: remove CEC engine register definitions > drm: bridge/dw_hdmi-cec: add Designware HDMI CEC driver > cec: add HDMI CEC input driver > cec: add HDMI CEC core driver > drm: bridge/dw_hdmi: replace CTS calculation for the ACR > drm: bridge/dw_hdmi: remove ratio support from ACR code > drm: bridge/dw_hdmi: adjust pixel clock values in N calculation > drm: bridge/dw_hdmi: avoid being recursive in N calculation > drm: bridge/dw_hdmi-ahb-audio: allow larger buffer sizes > drm: bridge/dw_hdmi-ahb-audio: basic support for multi-channel PCM audio > drm: bridge/dw_hdmi-ahb-audio: parse ELD from HDMI driver > drm: bridge/dw_hdmi-ahb-audio: add audio driver > drm: bridge/dw_hdmi: improve HDMI enable/disable handling > drm: bridge/dw_hdmi: add connector mode forcing > drm: bridge/dw_hdmi: add support for interlaced video modes > gpu: imx: fix support for interlaced modes > gpu: imx: simplify sync polarity setting > > I haven't yet decided what, if anything, from that stack I'm going to > try to get into the next merge window. Given the lack of interest last > time I posted these patches, I'm loosing interest myself in trying to > get them merged, especially ones which are getting on for being 2 years > old. I'm still very interested to see at least the "gpu: imx: fix support for interlaced modes" and "gpu: imx: simplify sync polarity setting" merged. May I take them into the imx-drm tree separately? Or, if I can influence your decision in this matter, I'd prefer if you could once more resend last month's series with Thierry in Cc:, and he'd either queue them with my Ack for the imx-drm patches or give his Ack for you or me to queue them. regards Philipp
On Mon, Sep 21, 2015 at 11:15 AM, Russell King - ARM Linux <linux@arm.linux.org.uk> wrote: > My current patch stack for imx-drm related stuff looks like this at > present: > > drm: bridge/dw_hdmi: place PHY into low power mode when disabled > drm: bridge/dw_hdmi: start of support for pixel doubled modes > drm: bridge/dw_hdmi: remove CEC engine register definitions > drm: bridge/dw_hdmi-cec: add Designware HDMI CEC driver > cec: add HDMI CEC input driver > cec: add HDMI CEC core driver > drm: bridge/dw_hdmi: replace CTS calculation for the ACR > drm: bridge/dw_hdmi: remove ratio support from ACR code > drm: bridge/dw_hdmi: adjust pixel clock values in N calculation > drm: bridge/dw_hdmi: avoid being recursive in N calculation > drm: bridge/dw_hdmi-ahb-audio: allow larger buffer sizes > drm: bridge/dw_hdmi-ahb-audio: basic support for multi-channel PCM audio > drm: bridge/dw_hdmi-ahb-audio: parse ELD from HDMI driver > drm: bridge/dw_hdmi-ahb-audio: add audio driver > drm: bridge/dw_hdmi: improve HDMI enable/disable handling > drm: bridge/dw_hdmi: add connector mode forcing > drm: bridge/dw_hdmi: add support for interlaced video modes > gpu: imx: fix support for interlaced modes > gpu: imx: simplify sync polarity setting > > I haven't yet decided what, if anything, from that stack I'm going to > try to get into the next merge window. Given the lack of interest last > time I posted these patches, I'm loosing interest myself in trying to > get them merged, especially ones which are getting on for being 2 years > old. These are all good material. Please consider getting them merged. Thanks
On Fri, Sep 25, 2015 at 10:29:51AM +0200, Philipp Zabel wrote: > Am Montag, den 21.09.2015, 15:15 +0100 schrieb Russell King - ARM Linux: > > On Mon, Sep 21, 2015 at 11:51:06AM +0200, Thierry Reding wrote: > > > On Wed, Sep 16, 2015 at 01:41:38PM -0700, Douglas Anderson wrote: > > > > There's a member in 'struct dw_hdmi' called cable_plugin. It's never > > > > set to anything anywhere so thus is always false. There's a bit of code > > > > checking it, but since it's always false this must be dead code. > > > > Eliminate it. > > > > > > > > Note: if someone wants to figure out the intention of the original code > > > > and implement whatever feature / fix was needed then we can drop this > > > > patch. The 'cable_plugin' member has been unused since the code was > > > > first added in (9aaf880 imx-drm: Add mx6 hdmi transmitter support). > > > > > > > > Signed-off-by: Douglas Anderson <dianders@chromium.org> > > > > --- > > > > drivers/gpu/drm/bridge/dw_hdmi.c | 9 --------- > > > > 1 file changed, 9 deletions(-) > > > > > > Except for the CHROMIUM: prefix this looks good to me: > > > > > > Reviewed-by: Thierry Reding <treding@nvidia.com> > > This seems to be similar to Sascha's "drm: bridge/dw_hdmi: remove unused > code" patch, except that the hdmi_disable_overflow_interrupts function > could be removed too. > > > > Russell, do you have patches to this driver queued for v4.4 and plan to > > > pick this up into your tree or should I take it? > > > > My current patch stack for imx-drm related stuff looks like this at > > present: > > > > drm: bridge/dw_hdmi: place PHY into low power mode when disabled > > drm: bridge/dw_hdmi: start of support for pixel doubled modes > > drm: bridge/dw_hdmi: remove CEC engine register definitions > > drm: bridge/dw_hdmi-cec: add Designware HDMI CEC driver > > cec: add HDMI CEC input driver > > cec: add HDMI CEC core driver > > drm: bridge/dw_hdmi: replace CTS calculation for the ACR > > drm: bridge/dw_hdmi: remove ratio support from ACR code > > drm: bridge/dw_hdmi: adjust pixel clock values in N calculation > > drm: bridge/dw_hdmi: avoid being recursive in N calculation > > drm: bridge/dw_hdmi-ahb-audio: allow larger buffer sizes > > drm: bridge/dw_hdmi-ahb-audio: basic support for multi-channel PCM audio > > drm: bridge/dw_hdmi-ahb-audio: parse ELD from HDMI driver > > drm: bridge/dw_hdmi-ahb-audio: add audio driver > > drm: bridge/dw_hdmi: improve HDMI enable/disable handling > > drm: bridge/dw_hdmi: add connector mode forcing > > drm: bridge/dw_hdmi: add support for interlaced video modes > > gpu: imx: fix support for interlaced modes > > gpu: imx: simplify sync polarity setting > > > > I haven't yet decided what, if anything, from that stack I'm going to > > try to get into the next merge window. Given the lack of interest last > > time I posted these patches, I'm loosing interest myself in trying to > > get them merged, especially ones which are getting on for being 2 years > > old. > > I'm still very interested to see at least the "gpu: imx: fix support for > interlaced modes" and "gpu: imx: simplify sync polarity setting" merged. > May I take them into the imx-drm tree separately? The "gpu: imx:" patches sound like they are standalone, so taking them through the imx-drm tree would be the easiest. Thierry
On Tue, Sep 29, 2015 at 01:07:25PM +0200, Thierry Reding wrote: > On Fri, Sep 25, 2015 at 10:29:51AM +0200, Philipp Zabel wrote: > > Am Montag, den 21.09.2015, 15:15 +0100 schrieb Russell King - ARM Linux: > > > On Mon, Sep 21, 2015 at 11:51:06AM +0200, Thierry Reding wrote: > > > > On Wed, Sep 16, 2015 at 01:41:38PM -0700, Douglas Anderson wrote: > > > > > There's a member in 'struct dw_hdmi' called cable_plugin. It's never > > > > > set to anything anywhere so thus is always false. There's a bit of code > > > > > checking it, but since it's always false this must be dead code. > > > > > Eliminate it. > > > > > > > > > > Note: if someone wants to figure out the intention of the original code > > > > > and implement whatever feature / fix was needed then we can drop this > > > > > patch. The 'cable_plugin' member has been unused since the code was > > > > > first added in (9aaf880 imx-drm: Add mx6 hdmi transmitter support). > > > > > > > > > > Signed-off-by: Douglas Anderson <dianders@chromium.org> > > > > > --- > > > > > drivers/gpu/drm/bridge/dw_hdmi.c | 9 --------- > > > > > 1 file changed, 9 deletions(-) > > > > > > > > Except for the CHROMIUM: prefix this looks good to me: > > > > > > > > Reviewed-by: Thierry Reding <treding@nvidia.com> > > > > This seems to be similar to Sascha's "drm: bridge/dw_hdmi: remove unused > > code" patch, except that the hdmi_disable_overflow_interrupts function > > could be removed too. > > > > > > Russell, do you have patches to this driver queued for v4.4 and plan to > > > > pick this up into your tree or should I take it? > > > > > > My current patch stack for imx-drm related stuff looks like this at > > > present: > > > > > > drm: bridge/dw_hdmi: place PHY into low power mode when disabled > > > drm: bridge/dw_hdmi: start of support for pixel doubled modes > > > drm: bridge/dw_hdmi: remove CEC engine register definitions > > > drm: bridge/dw_hdmi-cec: add Designware HDMI CEC driver > > > cec: add HDMI CEC input driver > > > cec: add HDMI CEC core driver > > > drm: bridge/dw_hdmi: replace CTS calculation for the ACR > > > drm: bridge/dw_hdmi: remove ratio support from ACR code > > > drm: bridge/dw_hdmi: adjust pixel clock values in N calculation > > > drm: bridge/dw_hdmi: avoid being recursive in N calculation > > > drm: bridge/dw_hdmi-ahb-audio: allow larger buffer sizes > > > drm: bridge/dw_hdmi-ahb-audio: basic support for multi-channel PCM audio > > > drm: bridge/dw_hdmi-ahb-audio: parse ELD from HDMI driver > > > drm: bridge/dw_hdmi-ahb-audio: add audio driver > > > drm: bridge/dw_hdmi: improve HDMI enable/disable handling > > > drm: bridge/dw_hdmi: add connector mode forcing > > > drm: bridge/dw_hdmi: add support for interlaced video modes > > > gpu: imx: fix support for interlaced modes > > > gpu: imx: simplify sync polarity setting > > > > > > I haven't yet decided what, if anything, from that stack I'm going to > > > try to get into the next merge window. Given the lack of interest last > > > time I posted these patches, I'm loosing interest myself in trying to > > > get them merged, especially ones which are getting on for being 2 years > > > old. > > > > I'm still very interested to see at least the "gpu: imx: fix support for > > interlaced modes" and "gpu: imx: simplify sync polarity setting" merged. > > May I take them into the imx-drm tree separately? > > The "gpu: imx:" patches sound like they are standalone, so taking them > through the imx-drm tree would be the easiest. Taking just those screws up the rest of the series, as I previously explained: > On Thu, Aug 27, 2015 at 10:39:12AM +0200, Philipp Zabel wrote: > > Unfortunately these timings are completely different from what Freescale > > came up with for the TV Encoder on i.MX5, but the code we have currently > > in mainline doesn't work for that either. I suppose I'll follow up with > > a patch that adds yet another sync counter setup for the i.MX5/TVE case. > > > > I'd like to take the two ipu-v3 patches, making a few small changes on > > this one: > > Please don't split the series up. The reason it's a series is because > there's interdependencies between the patches. Have you acked my patch set sent in August, after I relied saying that the series needs to be kept together? Philipp sent a tested-by, but that was about the only attributation I received from posting the set, so I only sent David what I was fully happy to send at the time. I'm willing to send: drm: bridge/dw_hdmi: improve HDMI enable/disable handling drm: bridge/dw_hdmi: add connector mode forcing drm: bridge/dw_hdmi: add support for interlaced video modes gpu: imx: fix support for interlaced modes gpu: imx: simplify sync polarity setting now, which are patches 3, 4, 5, 11 and 12 from the original 12 patch series. The actual audio patches I think need to be held _even_ longer, because it's unclear what's happening with ALSA in regard to HDMI audio. There's also the need to sort out what's going on with CEC (thanks to the late arrival of the CEC project by Hans) which may influence how the HDMI audio part gets to hear about the display's capabilities. So, yet again I can see audio missing the next merge window, which is just how it's been for the last two years. Actually, right now I think we ought to say: sod it, these patches have been around for long enough that they should just be merged, and then we'll sort out whatever changes are necessary later when the CEC and audio situation finally gets sorted... but are you happy with having what is essentially an ALSA driver in drivers/gpu/drm/bridge? If not, why haven't you responded to the many times that the patches have been posted? At this stage, I'm getting to be very rebelious, and it's very tempting for me to say "sod you" or just drop the work entirely if you have any objections. I feel I've put fsck loads of work into this area for very little mainline progress, and I'm just not going to continue doing that.
On Sat, Sep 26, 2015 at 05:32:12PM -0300, Fabio Estevam wrote: > On Mon, Sep 21, 2015 at 11:15 AM, Russell King - ARM Linux > <linux@arm.linux.org.uk> wrote: > > > My current patch stack for imx-drm related stuff looks like this at > > present: > > > > drm: bridge/dw_hdmi: place PHY into low power mode when disabled > > drm: bridge/dw_hdmi: start of support for pixel doubled modes > > drm: bridge/dw_hdmi: remove CEC engine register definitions > > drm: bridge/dw_hdmi-cec: add Designware HDMI CEC driver > > cec: add HDMI CEC input driver > > cec: add HDMI CEC core driver > > drm: bridge/dw_hdmi: replace CTS calculation for the ACR > > drm: bridge/dw_hdmi: remove ratio support from ACR code > > drm: bridge/dw_hdmi: adjust pixel clock values in N calculation > > drm: bridge/dw_hdmi: avoid being recursive in N calculation > > drm: bridge/dw_hdmi-ahb-audio: allow larger buffer sizes > > drm: bridge/dw_hdmi-ahb-audio: basic support for multi-channel PCM audio > > drm: bridge/dw_hdmi-ahb-audio: parse ELD from HDMI driver > > drm: bridge/dw_hdmi-ahb-audio: add audio driver > > drm: bridge/dw_hdmi: improve HDMI enable/disable handling > > drm: bridge/dw_hdmi: add connector mode forcing > > drm: bridge/dw_hdmi: add support for interlaced video modes > > gpu: imx: fix support for interlaced modes > > gpu: imx: simplify sync polarity setting > > > > I haven't yet decided what, if anything, from that stack I'm going to > > try to get into the next merge window. Given the lack of interest last > > time I posted these patches, I'm loosing interest myself in trying to > > get them merged, especially ones which are getting on for being 2 years > > old. > > These are all good material. Please consider getting them merged. If you want to see them merged, how about sending me an Acked-by for these patches? You were copied on them in August, and there was a deathly silence from _everyone_ on the initial set of patches. There's been a few changes to "gpu: imx: fix support for interlaced modes" and "drm: bridge/dw_hdmi-ahb-audio: add audio driver" as per the (little) review that was done in August, but other than that, the patches are essentially the same, just rebased on top of (now) -rc4. Maybe some people can also take a look at the CTS/N changes, and maybe back me up against Doug Anderson, so I'm not feeling like I can't merge those patches due to the lack of concensus.
On Mon, Oct 5, 2015 at 4:17 PM, Russell King - ARM Linux <linux@arm.linux.org.uk> wrote: > On Sat, Sep 26, 2015 at 05:32:12PM -0300, Fabio Estevam wrote: >> On Mon, Sep 21, 2015 at 11:15 AM, Russell King - ARM Linux >> <linux@arm.linux.org.uk> wrote: >> >> > My current patch stack for imx-drm related stuff looks like this at >> > present: >> > >> > drm: bridge/dw_hdmi: place PHY into low power mode when disabled >> > drm: bridge/dw_hdmi: start of support for pixel doubled modes >> > drm: bridge/dw_hdmi: remove CEC engine register definitions >> > drm: bridge/dw_hdmi-cec: add Designware HDMI CEC driver >> > cec: add HDMI CEC input driver >> > cec: add HDMI CEC core driver >> > drm: bridge/dw_hdmi: replace CTS calculation for the ACR >> > drm: bridge/dw_hdmi: remove ratio support from ACR code >> > drm: bridge/dw_hdmi: adjust pixel clock values in N calculation >> > drm: bridge/dw_hdmi: avoid being recursive in N calculation >> > drm: bridge/dw_hdmi-ahb-audio: allow larger buffer sizes >> > drm: bridge/dw_hdmi-ahb-audio: basic support for multi-channel PCM audio >> > drm: bridge/dw_hdmi-ahb-audio: parse ELD from HDMI driver >> > drm: bridge/dw_hdmi-ahb-audio: add audio driver >> > drm: bridge/dw_hdmi: improve HDMI enable/disable handling >> > drm: bridge/dw_hdmi: add connector mode forcing >> > drm: bridge/dw_hdmi: add support for interlaced video modes >> > gpu: imx: fix support for interlaced modes >> > gpu: imx: simplify sync polarity setting >> > >> > I haven't yet decided what, if anything, from that stack I'm going to >> > try to get into the next merge window. Given the lack of interest last >> > time I posted these patches, I'm loosing interest myself in trying to >> > get them merged, especially ones which are getting on for being 2 years >> > old. >> >> These are all good material. Please consider getting them merged. > > If you want to see them merged, how about sending me an Acked-by for > these patches? You were copied on them in August, and there was a > deathly silence from _everyone_ on the initial set of patches. Sure, will go through each one the patches. Just give me one day or two. Regards, Fabio Estevam
diff --git a/drivers/gpu/drm/bridge/dw_hdmi.c b/drivers/gpu/drm/bridge/dw_hdmi.c index 0083d4e..ba90885 100644 --- a/drivers/gpu/drm/bridge/dw_hdmi.c +++ b/drivers/gpu/drm/bridge/dw_hdmi.c @@ -115,7 +115,6 @@ struct dw_hdmi { int vic; u8 edid[HDMI_EDID_LEN]; - bool cable_plugin; bool phy_enabled; struct drm_display_mode previous_mode; @@ -1203,12 +1202,6 @@ static void dw_hdmi_clear_overflow(struct dw_hdmi *hdmi) hdmi_writeb(hdmi, val, HDMI_FC_INVIDCONF); } -static void hdmi_enable_overflow_interrupts(struct dw_hdmi *hdmi) -{ - hdmi_writeb(hdmi, 0, HDMI_FC_MASK2); - hdmi_writeb(hdmi, 0, HDMI_IH_MUTE_FC_STAT2); -} - static void hdmi_disable_overflow_interrupts(struct dw_hdmi *hdmi) { hdmi_writeb(hdmi, HDMI_IH_MUTE_FC_STAT2_OVERFLOW_MASK, @@ -1285,8 +1278,6 @@ static int dw_hdmi_setup(struct dw_hdmi *hdmi, struct drm_display_mode *mode) hdmi_tx_hdcp_config(hdmi); dw_hdmi_clear_overflow(hdmi); - if (hdmi->cable_plugin && hdmi->sink_is_hdmi) - hdmi_enable_overflow_interrupts(hdmi); return 0; }
There's a member in 'struct dw_hdmi' called cable_plugin. It's never set to anything anywhere so thus is always false. There's a bit of code checking it, but since it's always false this must be dead code. Eliminate it. Note: if someone wants to figure out the intention of the original code and implement whatever feature / fix was needed then we can drop this patch. The 'cable_plugin' member has been unused since the code was first added in (9aaf880 imx-drm: Add mx6 hdmi transmitter support). Signed-off-by: Douglas Anderson <dianders@chromium.org> --- drivers/gpu/drm/bridge/dw_hdmi.c | 9 --------- 1 file changed, 9 deletions(-)