On Mon, 11 Apr 2022 at 16:07, Jayshri Pawar <jpawar@xxxxxxxxxxx> wrote: > > From: jpawar <jpawar@xxxxxxxxxxx> This should be "Jayshri Pawar <jpawar@xxxxxxxxxxx>" > > Add support for pre_enable and post_enable drm bridge control functions. > Making sure that host to be prepared before panel is powered up, > for the panels like TC358762. > > Signed-off-by: jpawar <jpawar@xxxxxxxxxxx> Again, your full name should be used. > --- > drivers/gpu/drm/bridge/cdns-dsi.c | 26 ++++++++++++++++++++++++++ > 1 file changed, 26 insertions(+) > > diff --git a/drivers/gpu/drm/bridge/cdns-dsi.c b/drivers/gpu/drm/bridge/cdns-dsi.c > index 829e1a144656..20bece84ff8c 100644 > --- a/drivers/gpu/drm/bridge/cdns-dsi.c > +++ b/drivers/gpu/drm/bridge/cdns-dsi.c > @@ -462,6 +462,7 @@ struct cdns_dsi { > struct reset_control *dsi_p_rst; > struct clk *dsi_sys_clk; > bool link_initialized; > + bool phy_initialized; > struct phy *dphy; > }; > > @@ -711,11 +712,21 @@ static void cdns_dsi_bridge_disable(struct drm_bridge *bridge) > pm_runtime_put(dsi->base.dev); > } > > +static void cdns_dsi_bridge_post_disable(struct drm_bridge *bridge) > +{ > + struct cdns_dsi_input *input = bridge_to_cdns_dsi_input(bridge); > + struct cdns_dsi *dsi = input_to_dsi(input); > + > + pm_runtime_put(dsi->base.dev); > +} > + > static void cdns_dsi_hs_init(struct cdns_dsi *dsi) > { > struct cdns_dsi_output *output = &dsi->output; > u32 status; > > + if (dsi->phy_initialized) > + return; > /* > * Power all internal DPHY blocks down and maintain their reset line > * asserted before changing the DPHY config. > @@ -739,6 +750,7 @@ static void cdns_dsi_hs_init(struct cdns_dsi *dsi) > writel(DPHY_CMN_PSO | DPHY_ALL_D_PDN | DPHY_C_PDN | DPHY_CMN_PDN | > DPHY_D_RSTB(output->dev->lanes) | DPHY_C_RSTB, > dsi->regs + MCTL_DPHY_CFG0); > + dsi->phy_initialized = true; > } > > static void cdns_dsi_init_link(struct cdns_dsi *dsi) > @@ -914,11 +926,25 @@ static void cdns_dsi_bridge_enable(struct drm_bridge *bridge) > writel(tmp, dsi->regs + MCTL_MAIN_EN); > } > > +static void cdns_dsi_bridge_pre_enable(struct drm_bridge *bridge) > +{ > + struct cdns_dsi_input *input = bridge_to_cdns_dsi_input(bridge); > + struct cdns_dsi *dsi = input_to_dsi(input); > + > + if (WARN_ON(pm_runtime_get_sync(dsi->base.dev) < 0)) > + return; > + > + cdns_dsi_init_link(dsi); > + cdns_dsi_hs_init(dsi); > +} > + > static const struct drm_bridge_funcs cdns_dsi_bridge_funcs = { > .attach = cdns_dsi_bridge_attach, > .mode_valid = cdns_dsi_bridge_mode_valid, > .disable = cdns_dsi_bridge_disable, > + .pre_enable = cdns_dsi_bridge_pre_enable, > .enable = cdns_dsi_bridge_enable, > + .post_disable = cdns_dsi_bridge_post_disable, > }; > > static int cdns_dsi_attach(struct mipi_dsi_host *host, Cadence seems to have DKIM mail server failure, which is preventing b4 from importing this patch. Log attached below. I've manually fixed this author string issues. Reviewed-by: Robert Foss <robert.foss@xxxxxxxxxx> Applied to drm-misc-next. ---- Checking attestation on all messages, may take a moment... Traceback (most recent call last): File "/usr/bin/b4", line 33, in <module> sys.exit(load_entry_point('b4==0.8.0', 'console_scripts', 'b4')()) File "/usr/lib/python3/dist-packages/b4/command.py", line 246, in cmd cmdargs.func(cmdargs) File "/usr/lib/python3/dist-packages/b4/command.py", line 51, in cmd_am b4.mbox.main(cmdargs) File "/usr/lib/python3/dist-packages/b4/mbox.py", line 593, in main make_am(msgs, cmdargs, msgid) File "/usr/lib/python3/dist-packages/b4/mbox.py", line 92, in make_am am_msgs = lser.get_am_ready(noaddtrailers=cmdargs.noaddtrailers, File "/usr/lib/python3/dist-packages/b4/__init__.py", line 523, in get_am_ready checkmark, trailers, attcrit = lmsg.get_attestation_trailers(attpolicy, maxdays) File "/usr/lib/python3/dist-packages/b4/__init__.py", line 1173, in get_attestation_trailers for attestor in self.attestors: File "/usr/lib/python3/dist-packages/b4/__init__.py", line 1028, in attestors self._load_dkim_attestors() File "/usr/lib/python3/dist-packages/b4/__init__.py", line 1071, in _load_dkim_attestors res = dkim.verify(self.msg.as_bytes(), logger=dkimlogger) File "/usr/lib/python3/dist-packages/dkim/__init__.py", line 1352, in verify return d.verify(dnsfunc=dnsfunc) File "/usr/lib/python3/dist-packages/dkim/__init__.py", line 940, in verify return self.verify_sig(sig, include_headers, sigheaders[idx], dnsfunc) File "/usr/lib/python3/dist-packages/dkim/__init__.py", line 773, in verify_sig self.pk, self.keysize, self.ktag, self.seqtlsrpt = load_pk_from_dns(name, File "/usr/lib/python3/dist-packages/dkim/__init__.py", line 481, in load_pk_from_dns s = dnsfunc(name, timeout=timeout) File "/usr/lib/python3/dist-packages/dkim/dnsplug.py", line 88, in get_txt txt = _get_txt(unicode_name, timeout) File "/usr/lib/python3/dist-packages/dkim/dnsplug.py", line 31, in get_txt_dnspython a = dns.resolver.query(name, dns.rdatatype.TXT,raise_on_no_answer=False, lifetime=timeout) File "/usr/lib/python3/dist-packages/dns/resolver.py", line 1321, in query return resolve(qname, rdtype, rdclass, tcp, source, File "/usr/lib/python3/dist-packages/dns/resolver.py", line 1305, in resolve return get_default_resolver().resolve(qname, rdtype, rdclass, tcp, source, File "/usr/lib/python3/dist-packages/dns/resolver.py", line 1176, in resolve timeout = self._compute_timeout(start, lifetime) File "/usr/lib/python3/dist-packages/dns/resolver.py", line 997, in _compute_timeout raise Timeout(timeout=duration) dns.exception.Timeout: The DNS operation timed out after 5.402302026748657 seconds