I don't think that checkpatch.pl has all the style rules that we follow in drm.
Check the output of "✗ Fi.CI.CHECKPATCH: warning for drm/i915/edp/jsl: Update vswing table for HBR and HBR2 (rev2)" there more style errors than that.
On Mon, 2020-10-19 at 11:08 +0000, Surendrakumar Upadhyay, TejaskumarX wrote:
> Hi Jose,
>
> I use scripts/checkpatch.pl. And it has reported me following :
>
> drm-tip# ./scripts/checkpatch.pl 0001-drm-i915-edp-jsl-Update-vswing-table-for-HBR-and-HBR.patch
> WARNING: else is not generally useful after a break or return
> #88: FILE: drivers/gpu/drm/i915/display/intel_ddi.c:1222:
> + return jsl_combo_phy_ddi_translations_edp_hbr2;
> + } else {
>
> total: 0 errors, 1 warnings, 111 lines checked
>
> I have got 1 warning, which is because I have tried to maintain same format which is there in other similar functions in intel_ddi.c. If I will change to resolve this warning, everything else also needs similar change as applicable.
>
> Please let me know how you want me to proceed.
>
> Thanks,
> Tejas
>
> > -----Original Message-----
> > From: Souza, Jose <jose.souza@xxxxxxxxx>
> > Sent: 17 October 2020 02:11
> > To: Surendrakumar Upadhyay, TejaskumarX
> > <tejaskumarx.surendrakumar.upadhyay@xxxxxxxxx>; dri-
> > devel@xxxxxxxxxxxxxxxxxxxxx; intel-gfx@xxxxxxxxxxxxxxxxxxxxx
> > Subject: Re: [PATCH] drm/i915/edp/jsl: Update vswing table for HBR and
> > HBR2
> >
> > Please fix the checkpatch errors, you can run it locally by running "dim
> > checkpatch drm-tip/drm-tip..HEAD", search for instructions of how to fetch
> > and setup dim.
> >
> > Also no need to CC drm-devel for patches that only touches i915, drm-devel
> > is for drivers that don't have it's own list and for changes in drm subsystem
> > that affects all other drm based drivers.
> >
> > On Wed, 2020-10-14 at 20:29 +0530, Tejas Upadhyay wrote:
> > > JSL has update in vswing table for eDP.
> > >
> > > BSpec: 21257
> > >
> > > Cc: Souza Jose <jose.souza@xxxxxxxxx>
> > > Signed-off-by: Tejas Upadhyay
> > > <tejaskumarx.surendrakumar.upadhyay@xxxxxxxxx>
> > > ---
> > > drivers/gpu/drm/i915/display/intel_ddi.c | 87
> > > +++++++++++++++++++++++-
> > > 1 file changed, 85 insertions(+), 2 deletions(-)
> > >
> > > diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c
> > > b/drivers/gpu/drm/i915/display/intel_ddi.c
> > > index bb0b9930958f..7ab694c6d8df 100644
> > > --- a/drivers/gpu/drm/i915/display/intel_ddi.c
> > > +++ b/drivers/gpu/drm/i915/display/intel_ddi.c
> > > @@ -582,6 +582,34 @@ static const struct cnl_ddi_buf_trans
> > ehl_combo_phy_ddi_translations_dp[] = {
> > > { 0x6, 0x7F, 0x3F, 0x00, 0x00 },/* 900 900 0.0 */
> > > };
> > >
> > >
> > > +static const struct cnl_ddi_buf_trans
> > jsl_combo_phy_ddi_translations_edp_hbr[] = {
> > > +/* NT mV Trans mV db */
> > > +{ 0x8, 0x7F, 0x3F, 0x00, 0x00 }, /* 200 200 0.0 */
> > > +{ 0x8, 0x7F, 0x38, 0x00, 0x07 }, /* 200 250 1.9 */
> > > +{ 0x1, 0x7F, 0x33, 0x00, 0x0C }, /* 200 300 3.5 */
> > > +{ 0xA, 0x35, 0x36, 0x00, 0x09 }, /* 200 350 4.9 */
> > > +{ 0x8, 0x7F, 0x3F, 0x00, 0x00 }, /* 250 250 0.0 */
> > > +{ 0x1, 0x7F, 0x38, 0x00, 0x07 }, /* 250 300 1.6 */
> > > +{ 0xA, 0x35, 0x35, 0x00, 0x0A }, /* 250 350 2.9 */
> > > +{ 0x1, 0x7F, 0x3F, 0x00, 0x00 }, /* 300 300 0.0 */
> > > +{ 0xA, 0x35, 0x38, 0x00, 0x07 }, /* 300 350 1.3 */
> > > +{ 0xA, 0x35, 0x3F, 0x00, 0x00 }, /* 350 350 0.0 */
> > > +};
> > > +
> > > +static const struct cnl_ddi_buf_trans
> > jsl_combo_phy_ddi_translations_edp_hbr2[] = {
> > > +/* NT mV Trans mV db */
> > > +{ 0x8, 0x7F, 0x3F, 0x00, 0x00 }, /* 200 200 0.0 */
> > > +{ 0x8, 0x7F, 0x3F, 0x00, 0x00 }, /* 200 250 1.9 */
> > > +{ 0x1, 0x7F, 0x3D, 0x00, 0x02 }, /* 200 300 3.5 */
> > > +{ 0xA, 0x35, 0x38, 0x00, 0x07 }, /* 200 350 4.9 */
> > > +{ 0x8, 0x7F, 0x3F, 0x00, 0x00 }, /* 250 250 0.0 */
> > > +{ 0x1, 0x7F, 0x3F, 0x00, 0x00 }, /* 250 300 1.6 */
> > > +{ 0xA, 0x35, 0x3A, 0x00, 0x05 }, /* 250 350 2.9 */
> > > +{ 0x1, 0x7F, 0x3F, 0x00, 0x00 }, /* 300 300 0.0 */
> > > +{ 0xA, 0x35, 0x38, 0x00, 0x07 }, /* 300 350 1.3 */
> > > +{ 0xA, 0x35, 0x3F, 0x00, 0x00 }, /* 350 350 0.0 */
> > > +};
> > > +
> > > struct icl_mg_phy_ddi_buf_trans {
> > > u32 cri_txdeemph_override_11_6;
> > > u32 cri_txdeemph_override_5_0;
> > > @@ -1162,6 +1190,57 @@ ehl_get_combo_buf_trans(struct intel_encoder
> > > *encoder, return ehl_get_combo_buf_trans_dp(encoder, crtc_state,
> > > n_entries); }
> > >
> > >
> > > +static const struct cnl_ddi_buf_trans *
> > > +jsl_get_combo_buf_trans_hdmi(struct intel_encoder *encoder,
> > > + const struct intel_crtc_state *crtc_state,
> > > + int *n_entries)
> > > +{
> > > +*n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_hdmi);
> > > +return icl_combo_phy_ddi_translations_hdmi;
> > > +}
> > > +
> > > +static const struct cnl_ddi_buf_trans *
> > > +jsl_get_combo_buf_trans_dp(struct intel_encoder *encoder,
> > > + const struct intel_crtc_state *crtc_state,
> > > + int *n_entries)
> > > +{
> > > +*n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_dp_hbr2);
> > > +return icl_combo_phy_ddi_translations_dp_hbr2;
> > > +}
> > > +
> > > +static const struct cnl_ddi_buf_trans *
> > > +jsl_get_combo_buf_trans_edp(struct intel_encoder *encoder,
> > > + const struct intel_crtc_state *crtc_state,
> > > + int *n_entries)
> > > +{
> > > +struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
> > > +
> > > +if (dev_priv->vbt.edp.low_vswing) {
> > > +if (crtc_state->port_clock > 270000) { *n_entries =
> > > +ARRAY_SIZE(jsl_combo_phy_ddi_translations_edp_hbr2);
> > > +return jsl_combo_phy_ddi_translations_edp_hbr2;
> > > +} else {
> > > +*n_entries = ARRAY_SIZE(jsl_combo_phy_ddi_translations_edp_hbr);
> > > +return jsl_combo_phy_ddi_translations_edp_hbr;
> > > +}
> > > +}
> > > +
> > > +return jsl_get_combo_buf_trans_dp(encoder, crtc_state, n_entries); }
> > > +
> > > +static const struct cnl_ddi_buf_trans *
> > > +jsl_get_combo_buf_trans(struct intel_encoder *encoder,
> > > + const struct intel_crtc_state *crtc_state,
> > > + int *n_entries)
> > > +{
> > > +if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI)) return
> > > +jsl_get_combo_buf_trans_hdmi(encoder, crtc_state, n_entries); else if
> > > +(intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP)) return
> > > +jsl_get_combo_buf_trans_edp(encoder, crtc_state, n_entries); else
> > > +return jsl_get_combo_buf_trans_dp(encoder, crtc_state, n_entries); }
> > > +
> > > static const struct cnl_ddi_buf_trans *
> > > tgl_get_combo_buf_trans_hdmi(struct intel_encoder *encoder,
> > > const struct intel_crtc_state *crtc_state, @@ -2363,7 +2442,9 @@
> > > static u8 intel_ddi_dp_voltage_max(struct intel_dp *intel_dp, else
> > > tgl_get_dkl_buf_trans(encoder, crtc_state, &n_entries); } else if
> > > (INTEL_GEN(dev_priv) == 11) { -if (IS_JSL_EHL(dev_priv))
> > > +if (IS_PLATFORM(dev_priv, INTEL_JASPERLAKE))
> > > +jsl_get_combo_buf_trans(encoder, crtc_state, &n_entries); else if
> > > +(IS_PLATFORM(dev_priv, INTEL_ELKHARTLAKE))
> > > ehl_get_combo_buf_trans(encoder, crtc_state, &n_entries); else if
> > > (intel_phy_is_combo(dev_priv, phy)) icl_get_combo_buf_trans(encoder,
> > > crtc_state, &n_entries); @@ -2544,7 +2625,9 @@ static void
> > > icl_ddi_combo_vswing_program(struct intel_encoder *encoder,
> > >
> > >
> > > if (INTEL_GEN(dev_priv) >= 12)
> > > ddi_translations = tgl_get_combo_buf_trans(encoder, crtc_state,
> > > &n_entries); -else if (IS_JSL_EHL(dev_priv))
> > > +else if (IS_PLATFORM(dev_priv, INTEL_JASPERLAKE)) ddi_translations =
> > > +jsl_get_combo_buf_trans(encoder, crtc_state, &n_entries); else if
> > > +(IS_PLATFORM(dev_priv, INTEL_ELKHARTLAKE))
> > > ddi_translations = ehl_get_combo_buf_trans(encoder, crtc_state,
> > > &n_entries); else ddi_translations =
> > > icl_get_combo_buf_trans(encoder, crtc_state, &n_entries);
> >
>
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