Re: [PATCH v7 04/23] drm/i915/dsi: abstract intel_dsi_tlpx_ns()

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 10/15/2018 7:57 PM, Jani Nikula wrote:
Will be needed in the future. No functional changes.

Agree, will be needing this while setting up DSI protocol timeouts for ICL.


Cc: Madhav Chauhan <madhav.chauhan@xxxxxxxxx>
Cc: Ville Syrjala <ville.syrjala@xxxxxxxxxxxxxxx>
Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
---
  drivers/gpu/drm/i915/intel_dsi.c     | 13 +++++++++++++
  drivers/gpu/drm/i915/intel_dsi.h     |  1 +
  drivers/gpu/drm/i915/intel_dsi_vbt.c | 16 +---------------
  3 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c
index 4daa1da94047..a32cc1f4b384 100644
--- a/drivers/gpu/drm/i915/intel_dsi.c
+++ b/drivers/gpu/drm/i915/intel_dsi.c
@@ -15,3 +15,16 @@ int intel_dsi_bitrate(const struct intel_dsi *intel_dsi)
return intel_dsi->pclk * bpp / intel_dsi->lane_count;
  }
+
+int intel_dsi_tlpx_ns(const struct intel_dsi *intel_dsi)
+{
+	switch (intel_dsi->escape_clk_div) {
+	default:
+	case 0:
+		return 50;
+	case 1:
+		return 100;
+	case 2:
+		return 200;
+	}
+}

Can we change the return of this function to unsigned int, there is no way
that this function can return < 0  as per current implementation??

Regards,
Madhav

diff --git a/drivers/gpu/drm/i915/intel_dsi.h b/drivers/gpu/drm/i915/intel_dsi.h
index 68f14d8f1e18..0d911a4adfaa 100644
--- a/drivers/gpu/drm/i915/intel_dsi.h
+++ b/drivers/gpu/drm/i915/intel_dsi.h
@@ -131,6 +131,7 @@ static inline struct intel_dsi *enc_to_intel_dsi(struct drm_encoder *encoder)
/* intel_dsi.c */
  int intel_dsi_bitrate(const struct intel_dsi *intel_dsi);
+int intel_dsi_tlpx_ns(const struct intel_dsi *intel_dsi);
/* vlv_dsi.c */
  void vlv_dsi_wait_for_fifo_empty(struct intel_dsi *intel_dsi, enum port port);
diff --git a/drivers/gpu/drm/i915/intel_dsi_vbt.c b/drivers/gpu/drm/i915/intel_dsi_vbt.c
index fdeba8386d53..b0d8548f0462 100644
--- a/drivers/gpu/drm/i915/intel_dsi_vbt.c
+++ b/drivers/gpu/drm/i915/intel_dsi_vbt.c
@@ -512,21 +512,7 @@ static void vlv_dphy_param_init(struct intel_dsi *intel_dsi)
  	u32 lp_to_hs_switch, hs_to_lp_switch;
  	u32 mul;
- switch (intel_dsi->escape_clk_div) {
-	case 0:
-		tlpx_ns = 50;
-		break;
-	case 1:
-		tlpx_ns = 100;
-		break;
-
-	case 2:
-		tlpx_ns = 200;
-		break;
-	default:
-		tlpx_ns = 50;
-		break;
-	}
+	tlpx_ns = intel_dsi_tlpx_ns(intel_dsi);
switch (intel_dsi->lane_count) {
  	case 1:

_______________________________________________
Intel-gfx mailing list
Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/intel-gfx




[Index of Archives]     [AMD Graphics]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux