From: "José Roberto de Souza" <jose.souza@intel.com>
To: intel-gfx@lists.freedesktop.org
Cc: Jani Nikula <jani.nikula@intel.com>
Subject: [PATCH 2/2] drm/i915/ehl/dsi: Enable AFE over PPI strap
Date: Tue, 18 Jun 2019 13:00:00 -0700 [thread overview]
Message-ID: <20190618200000.15847-2-jose.souza@intel.com> (raw)
In-Reply-To: <20190618200000.15847-1-jose.souza@intel.com>
The other additional step in the DSI sequqence for EHL.
BSpec: 20597
Cc: Uma Shankar <uma.shankar@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
---
drivers/gpu/drm/i915/display/icl_dsi.c | 8 ++++++++
drivers/gpu/drm/i915/i915_reg.h | 4 ++++
2 files changed, 12 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/icl_dsi.c b/drivers/gpu/drm/i915/display/icl_dsi.c
index ee85428b309f..3a601c739fc6 100644
--- a/drivers/gpu/drm/i915/display/icl_dsi.c
+++ b/drivers/gpu/drm/i915/display/icl_dsi.c
@@ -542,6 +542,14 @@ static void gen11_dsi_setup_dphy_timings(struct intel_encoder *encoder)
I915_WRITE(DSI_TA_TIMING_PARAM(port), tmp);
}
}
+
+ if (IS_ELKHARTLAKE(dev_priv)) {
+ for_each_dsi_port(port, intel_dsi->ports) {
+ tmp = I915_READ(ICL_DPHY_CHKN(port));
+ tmp |= ICL_DPHY_CHKN_AFE_OVER_PPI_STRAP;
+ I915_WRITE(ICL_DPHY_CHKN(port), tmp);
+ }
+ }
}
static void gen11_dsi_gate_clocks(struct intel_encoder *encoder)
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 1f2c3ebdf87b..dc7b34cf8b42 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -1993,6 +1993,10 @@ enum i915_power_well_id {
#define N_SCALAR(x) ((x) << 24)
#define N_SCALAR_MASK (0x7F << 24)
+#define _ICL_DPHY_CHKN_REG 0x194
+#define ICL_DPHY_CHKN(port) _MMIO(_ICL_COMBOPHY(port) + _ICL_DPHY_CHKN_REG)
+#define ICL_DPHY_CHKN_AFE_OVER_PPI_STRAP (1 << 7)
+
#define MG_PHY_PORT_LN(ln, port, ln0p1, ln0p2, ln1p1) \
_MMIO(_PORT((port) - PORT_C, ln0p1, ln0p2) + (ln) * ((ln1p1) - (ln0p1)))
--
2.22.0
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
next prev parent reply other threads:[~2019-06-18 20:00 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-18 19:59 [PATCH 1/2] drm/i915/ehl/dsi: Set lane latency optimization for DW1 José Roberto de Souza
2019-06-18 20:00 ` José Roberto de Souza [this message]
2019-06-19 5:19 ` [PATCH 2/2] drm/i915/ehl/dsi: Enable AFE over PPI strap Kulkarni, Vandita
2019-06-19 5:21 ` Kulkarni, Vandita
2019-06-19 23:25 ` Souza, Jose
2019-06-19 22:52 ` Matt Roper
2019-06-19 23:16 ` Souza, Jose
2019-06-18 21:13 ` ✗ Fi.CI.BAT: failure for series starting with [1/2] drm/i915/ehl/dsi: Set lane latency optimization for DW1 Patchwork
2019-06-19 9:05 ` ✓ Fi.CI.BAT: success for series starting with [1/2] drm/i915/ehl/dsi: Set lane latency optimization for DW1 (rev3) Patchwork
2019-06-19 22:38 ` [PATCH 1/2] drm/i915/ehl/dsi: Set lane latency optimization for DW1 Matt Roper
2019-06-19 23:15 ` Souza, Jose
2019-06-19 23:53 ` ✓ Fi.CI.IGT: success for series starting with [1/2] drm/i915/ehl/dsi: Set lane latency optimization for DW1 (rev3) Patchwork
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190618200000.15847-2-jose.souza@intel.com \
--to=jose.souza@intel.com \
--cc=intel-gfx@lists.freedesktop.org \
--cc=jani.nikula@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox